阅读说明：本技术 可调节且可伸缩的杆杖设备 (Adjustable and telescopic stick device ) 是由 赖信元 于 2018-12-11 设计创作，主要内容包括：一种可调节且可伸缩的杆杖设备,包括：外部管道配装件、多段式杆杖单元和定位单元。多段式杆杖单元包括第一可折叠杆杖和至少一个第二可折叠杆杖,其中,第一可折叠杆杖和第二可折叠杆杖具有相同的外径,并且定位单元包括连结绳、定位部件和锁定部件,连结绳、定位部件和锁定部件用于使外部管道配装件和第一可折叠杆杖相对于彼此拉动。连结绳可以被拖拽,并且锁定部件和定位单元互锁或分开。当锁定部件和定位部件互锁时,外部管道配装件可以在展开状态下连接至多段式杆杖单元。当锁定部件远离定位部件移动时,多段式杆杖单元的第一可折叠杆杖和第二可折叠杆杖被折叠并且相对于外部管道配装件平行。(An adjustable and retractable pole apparatus, comprising: an external pipe fitting, a multi-segment stick unit, and a positioning unit. The multi-section pole unit comprises a first foldable pole and at least one second foldable pole, wherein the first and second foldable poles have the same outer diameter, and the positioning unit comprises a connecting rope, a positioning member and a locking member for pulling the outer pipe fitting and the first foldable pole relative to each other. The joint string may be dragged and the locking member and the positioning unit are interlocked or separated. When the locking and positioning members are interlocked, the outer tube fitting can be connected to the multi-section pole unit in the deployed state. When the locking member is moved away from the positioning member, the first and second foldable poles of the multi-section pole unit are folded and parallel with respect to the external pipe fitting.)

1. An adjustable and telescopic pole apparatus, preferably in the form of a folding pole: the folding pole has at least three pipe sections (10, 21, 22) and a pole handle (30) at the uppermost outer pipe fitting (10) and a tip (31) at the opposite end of the lowermost pipe section (22), and comprises:

an outer pipe fitting (10), said outer pipe fitting (10) being hollow, extending along an axis (L) and comprising an inner bore (11) disposed along said axis (L);

a multi-section pole unit (20), the multi-section pole unit (20) comprising a first foldable pole (21) and at least one second foldable pole (22), wherein the first foldable pole and the second foldable pole have the same outer diameter, are connectable to each other along the axis (L) in an unfolded state and are separable from each other in a folded or folded state, and are parallel with respect to the outer pipe fitting (10), and the first foldable pole (21) is extendable into the inner bore (11) of the outer pipe fitting (10) when the first foldable pole and the second foldable pole are in the unfolded state;

wherein the adjustable and retractable pole apparatus comprises:

a positioning unit (40) for positioning the object,

and a connecting rope (41),

the connecting cord (41) running through the outer tube fitting (10) and the multi-section pole unit (20),

wherein the tie cord (41) comprises a first end (411) fixed to the outer tube fitting (10) and a second end (412) opposite the first end (411), wherein the second end (412) of the tie cord (41) is connected to the second collapsible rod (22) furthest from the outer tube fitting (10),

and wherein the connecting string (41) is slidably inserted through the positioning member (42),

wherein the positioning unit (40) comprises:

a positioning member (42), the positioning member (42) being disposed in the first foldable pole (21) and attached to the first foldable pole (21), an

A locking member (44) directly and/or indirectly coupled to the linking cord (41) and located within the first collapsible cane (21),

wherein, in the unfolded state, the positioning element (42) and the locking element (44) are in form-fitting positive engagement such that the connecting cord (41) is under tension in the multi-section pole unit (22),

and wherein, in order to bring the apparatus to a collapsed state, the external pipe fitting (10) and the multi-section pole unit (22) are pulled apart axially, thereby at least partially dragging the locking member (44) and releasing the form-fitting positive engagement.

2. Apparatus according to claim 1, wherein the locking member (44) is mounted such as to slide at least partially within an inner ring surface (422) of the positioning member (42), and wherein the inner ring surface (422) comprises at least one, preferably more than one, radially inwardly protruding positioning protrusions (423) or positioning recesses, which protruding positioning protrusions (423) or positioning recesses are preferably evenly distributed in the circumferential direction, and wherein the locking member (44) comprises at least one, preferably more than one, corresponding radially outwardly protruding locking protrusions (433) or locking recesses, which protruding locking protrusions (433) or locking recesses are preferably evenly distributed in the circumferential direction, and wherein the form-fitting engagement of the form-fit is achieved by engagement of the protruding positioning protrusions (423) and/or corresponding recesses and engagement of the protruding locking protrusions (433) and/or corresponding recesses.

3. The device according to any one of the preceding claims, wherein a guide member (43) is further provided, the guide member (43) being mounted so as to slide at least partially within an inner ring surface (422) of the positioning member (42), and the guide member (43) is preferably configured so as to at least partially enclose at least a portion of the locking member (44), and wherein the guide member (43) is directly and/or indirectly coupled to the linking rope (41) and comprises a guide structure element (434), the guiding structure element (434) is used for dragging the locking component (44) when the external pipe fitting (10) and the multi-section stick unit (22) are axially pulled apart and controlling the rotation position of the locking component (44) relative to the positioning component (42).

4. The device according to any one of the preceding claims, wherein the presence or absence of a form-fitting positive engagement between the positioning member (42) and the locking member (44) depends on the relative rotational position of the two members, the locking member (44) being rotatably mounted in the first collapsible rod (22).

5. An apparatus according to any of the preceding claims, wherein the locking member (44) is movably arranged in the first collapsible rod cane (21), wherein the joint cord (41) comprises a first end (411) fixed to the outer tube fitting (10) and a second end (412) opposite to the first end (411), the second end (412) being connected to the second collapsible rod cane (22) furthest away from the outer tube fitting (10), the joint cord (41) being slidably movable through the positioning member (42) and connected to the locking member (44), the locking member (44) being multi-sectionally connected to the positioning member (42) when the first and second collapsible rods (21, 22) are in the unfolded state, the locking member (44) positioning the rod cane unit (20), and the locking member (44) is preferably axially spaced from the positioning member (42) when the foldable wand is in the foldable position.

6. An adjustable and telescopic rod cane apparatus according to any one of the preceding claims, wherein, when the outer tube fitting (10) is pulled outwardly in an opposite direction relative to the first foldable rod cane (21), the connecting cord (41) is pulled and the locking member (44) is disengaged and/or disengaged from the positioning member (42) in a form-fitting, form-fitting engagement, and the first and second foldable rod canes are changeable from the unfolded state to the foldable state.

7. An adjustable and telescopic rod cane apparatus according to any one of the preceding claims, wherein the positioning unit (40) further comprises a guide member (43), a tube stop (45) and a resilient member (46), the guide member (43) being movably arranged in the first collapsible rod (21), the tube stop (45) being arranged on top of the positioning member (42), the guide member (43) being capable of pushing the locking member (44) such that the locking member (44) moves axially relative to the positioning member (42), the resilient member (46) being arranged between the tube stop (45) and the locking member (44) and providing a resilient force to the locking member (44), and the coupling cord (41) being directly or indirectly connected to the guide member (43), -locking and connecting the locking member (44) relative to the positioning member (42) and-releasing the locking member (44) from the positioning member (42) and/or away from the positioning member (42).

8. An adjustable and telescopic pole apparatus as claimed in any one of the preceding claims, wherein the positioning member (42) of the positioning unit (40) is hollow and forms a conduit hole for the tie cord (41) to travel through, and the positioning member (42) includes an inner ring surface (422) surrounding the axis (L), a plurality of positioning teeth (423) surrounding the axis (L) and being offset from the inner ring surface (422) towards the axis (L), and a plurality of runners (424), one runner (424) being provided between two positioning teeth (423), each of the positioning teeth (423) including a crown portion (425), a sliding guide portion (426), a stop portion (427), and a guide slot (428), the crown portion (425) surrounding the axis and being inclined, the sliding guide portion (426) is arranged between the crown portion (425) and the adjacent runner (424), around the axis (L) and inclined, the stop portion (427) is arranged between the crown portion (425) and the sliding guide portion (426) and parallel to the axis (L), the guide groove (428) is parallel to the runner (424) and can be connected to the crown portion (425) or lead to the crown portion (425), wherein preferably the crown portion (425) and the sliding guide portion (426) are inclined towards the same direction.

9. An adjustable and telescopic pole apparatus as claimed in any one of the preceding claims, wherein the positioning unit comprises a guide member (43), the guide member (43) being slidable through the conduit aperture along the axis (L), and the guide member (43) comprises a straight conduit portion (431), a plurality of dragging portions (432) and a plurality of guide blocks (433), the plurality of dragging portions (432) being disposed around the axis (L) and on top of the straight conduit portion (431), the plurality of guide blocks (433) being disposed on the straight conduit portion (431) and being slidable along the guide slot (428), the dragging portions (432) being V-shaped, each dragging portion (432) of the dragging portions (432) comprising a pair of V-shaped dragging surfaces (434).

10. An adjustable and telescopic pole apparatus as claimed in any one of the preceding claims, wherein the locking member (44) includes a hollow tube wall (441) and a plurality of locking clips (442) surrounding the axis (L) and disposed on the tube wall (441), the tube wall (441) being capable of defining a through hole (443) disposed for the tie cord (41) to travel through, each of the locking clips (442) including at a bottom portion an inclined plane (444) corresponding to the crown portion (425) and the sliding guide portion (426) of the positioning member (42),

and/or wherein, when the outer tube fitting (10) is pulled outwardly in the opposite direction relative to the first collapsible rod wand (21), the tie cord (41) drives the guide member (43) to move along the axis (L), then the guide member (43) pushes the locking member (44) to move the locking member (44) upwardly relative to the positioning member (42) and to move the inclined plane (444) at the bottom of the locking clip (442) away from the toothed crown portion (425), the inclined plane (444) at the bottom of the locking clip (442) rotates about the axis (L) under the guidance of the dragging surface (434), the locking clip (442) slides into the sliding slot (424) under the guidance of a guide portion (429) when the tension of the tie cord (41) is released during operation, and the guide member (43) is moved downward and axially separated from the locking member (44) and/or the positioning member (42), in particular by using the elastic force released by the elastic member (46), and the first and second foldable rods are foldable in a foldable state and parallel with respect to the external pipe fitting (10).

11. An adjustable and telescopic pole apparatus as claimed in any one of the preceding claims, wherein each of the positioning teeth (423) of the positioning unit (42) further comprises a guide portion (429), which is arranged opposite the crown portion (425) and is V-shaped, and the locking clip (442) can smoothly fall and/or slide into the sliding slot (424) from bottom to top under the action of the guide portion (429).

12. An adjustable and telescopic pole apparatus as claimed in any one of the preceding claims, wherein the coupling cord (41) further comprises upper and lower knots (413, 413 ') and upper and lower positioning blocks (414, 415), the knots (413, 413 ') being disposed between the first and second ends (411, 412) and being separated, the upper positioning block (414) being capable of locking and positioning the upper knot (413), the lower positioning block (415) being capable of locking and positioning the lower knot (413 '), the upper positioning block (414) being disposed on the conduit wall (441) and the lower positioning block (415) being disposed at the bottom of the straight conduit portion (431).

13. An adjustable and retractable rod cane apparatus according to any one of the preceding claims, further comprising a quick release assembly disposed in a position connecting the outer tube fitting (10) and the first foldable rod cane (21), wherein the quick release assembly is operable to cause the first foldable rod cane to lock and position the outer tube fitting (10) after retraction of the first foldable rod cane.

14. An adjustable and telescopic rod and cane arrangement according to any one of the preceding claims, characterized in that the plug-in connections in the multi-section rod unit (20), i.e. the plug-in connections between the first and second foldable rods and, in the case of several second foldable rods (22), the plug-in connections in these second foldable rods (22), are each configured such that on one pipe section the plug-in connections have a guide pin which is provided with a central through-opening for the axial travel of the coupling cord (41), the guide pin being firmly fastened in this pipe section by a fastening section, and the pin having a pin region axially opposite the fastening section, which can be slid into another pipe section, wherein contact flanges which are preferably oriented radially outward in the circumferential direction are provided between the fastening section and the pin region, the contact flange, in the assembled state, being in axial contact with a pipe end of the further pipe section and/or a pipe closure sleeve arranged on the pipe end, wherein preferably the axial stop is configured asymmetrically with respect to the pole axis and/or wherein preferably also the pin region has an at least partially conical tapering region at the end of the pin region facing the further pipe section,

and/or wherein the quick-release assembly (50) takes the form of an external clamping device comprising a plastic sleeve which surrounds the external pipe fitting (10) substantially directly at least in an axial section and clamps in the closed state, wherein the plastic sleeve has at least one groove at least in the region surrounding the external pipe fitting (10) so that the circumference of the plastic sleeve can vary in this region and is configured to be substantially circumferential in the remaining axial region, wherein one projection is arranged on the plastic sleeve on each side of this groove, wherein these projections have coaxial through-openings arranged substantially perpendicularly to the axis of the external pipe fitting (10) through which a transverse pin is gripped, the pin has a stop outside the second projection and has an axis of rotation outside the first projection for a clamping lever arranged perpendicular to the axis of the transverse pin and parallel to the axis (L) of the outer pipe fitting (10), wherein the clamping lever has a lever arm which at least partially surrounds the plastic sleeve when the clamping device is closed, and wherein the clamping lever has an eccentric rolling area around the axis of rotation, whereby the distance between the stop and a mating surface for clamping arranged outside the first projection can be reduced by pivoting the clamping lever into a closed position, wherein preferably the mating surface is configured in the form of a metal element arranged at least partially in the recess in the first projection, and wherein, further preferably, the mating surface is configured as a flat surface or as a concave surface, the radius of curvature of the flat or concave surface is substantially adapted to the radius of curvature of the rolling area, and wherein it is further preferred that the plastic sleeve has at least two, preferably at least three, axially running grooves in the upper section of the plastic sleeve, wherein at least one of these grooves is arranged between two projections, and preferably these grooves are evenly distributed around the circumference, and/or wherein, further preferably, the stop is configured to be adjustable, wherein, preferably, the stop is configured with a thread and the transverse pin is configured with a counter-thread, and the stop is configured as a nut or screw, preferably with a circumferential toothed structure and/or a comb and/or a groove for engagement with an adjustment tool.

15. An adjustable and telescopic pole apparatus according to any of the preceding claims, wherein the pole apparatus comprises at least four pipe sections: the outer pipe fitting (10), the first collapsible rod (21) and the two second collapsible rods (22).

Technical Field

The present invention relates to telescopic pole, and in particular to an adjustable and telescopic pole apparatus, in particular for use as a walking pole, alpenstock, alpine ski pole, cross-country ski pole and nordic walking pole.

Background

As shown in fig. 1 and 2, the foldable multi-sectional telescopic pole includes a hollow upper tube 1, a first lower tube 2 slidably inserted into the upper tube 1, a plurality of second lower tubes 3 connected in series, a linking rope 4, and a locking pin unit 5. The upper tube 1 is covered by the handle 6 and is provided with a hole 201 at a position close to the top of the first lower tube 2.

The tie cord 4 passes through the upper tube 1, the first lower tube 2 and the second lower tube 3, and the tie cord 4 comprises a first end 401 fixed on top of the upper tube 1 and a second end 402 opposite the first end 401 and fixed in a position furthest from the second lower tube 3 of the upper tube 1. The locking pin unit 5 includes: a positioner 501, the positioner 501 is fixed on the top of the first lower pipe 2; clip 502, clip 502 connected to locator 501; and a locking pin 503, the locking pin 503 being fixed at an end of the clip 502.

When the upper tube 1, the first lower tube 2 and the second lower tube 3 are connected to each other in a deployed state (as shown in fig. 1), the linking cord 4 is in a straightened state and has a large tension. The locking pins 503 of the locking pin unit 5 can extend in the holes 201 and can bring the telescopic wand to a maximum length in the use condition.

When the user presses the locking pin 503, the tension of the coupling cord 4 is released so that the locking pin 503 is separated from the hole 201. At this time, the operator may retract the first lower tube 2 toward the inside of the upper tube 1. Since the connecting cord 4 has become loose, the second lower tube 3 can be separated from the first lower tube 2. Such second lower tubes 3 may also be separate from each other. The first lower tube 2 can be retracted towards the inside of the upper tube 1 and the second lower tube 3 can be parallel with respect to the upper tube 1 (this is not shown in the figures).

When the first lower tube 2 is pulled out relative to the upper tube 1, the second lower tube 3 and the first lower tube 2 can be connected in series to form a straight rod cane until the locking pins 503 of the locking pin unit 5 extend into the holes 201 and the telescopic rod cane returns to the use position, at which time the telescopic rod cane has a maximum length.

Although the telescopic pole can be unfolded or folded, when the pole is to be unfolded or folded, since an operator must press the locking pins 503 with fingers and release the tension of the coupling cord 4, the fingers may be injured by the engagement between the upper tube 1 and the first lower tube 2 when the locking pins 503 are separated from the holes 201.

Disclosure of Invention

It is therefore an object of the present invention to provide an adjustable and telescopic pole arrangement which is easy and safe to fold or unfold and which can be used as a walking pole, alpenstock, alpine ski pole, cross-country ski pole and nordic walking pole.

The adjustable and retractable pole apparatus provided in the present invention includes an external pipe fitting, a multi-segment pole unit, and a positioning unit. The outer tube fitting is hollow and extends along an axis. The outer tube fitting includes an inner bore disposed along an axis. The multi-section pole unit comprises a first foldable pole and at least one second foldable pole, wherein the first foldable pole and the second foldable pole have the same outer diameter, the first foldable pole and the second foldable pole can be connected to each other along an axis in an unfolded state and can be separated from each other in a folded state, and the first foldable pole and the second foldable pole are parallel to each other with respect to the external pipe fitting. The first collapsible cane may extend inside the inner bore of the outer tube fitting when the first collapsible cane and the second collapsible cane are in the deployed state. The positioning unit includes: a connecting rope running through the external pipe fitting and the multi-section rod unit; a positioning member disposed in the first foldable wand; and a locking member movably disposed in the first collapsible cane. The connecting cord includes a first end secured to the outer pipe fitting and a second end opposite the first end. The second end is connected to a second collapsible rod furthest from the outer tube fitting, and the connecting cord may be slipped through the positioning member and connected to the locking member. The locking member is connected to the positioning member when the first foldable wand and the second foldable wand are in the unfolded state. The locking component positions the multi-section stick unit. When the foldable stick is in the foldable state, the locking member is separated from the positioning unit.

The invention has the following effects: by using a unitary structure including the outer tube fitting, the multi-segment pole unit, and the positioning unit, the outer tube fitting and the first foldable pole need only be pulled outwardly in opposite directions during operation to switch between the unfolded state and the foldable state. The operation is convenient and the risk of finger injury is avoided. Furthermore, since the first foldable wand can be arranged in the inner bore of the outer pipe fitting owing to the same outer diameters of the first and second foldable wands, the main wand components of the telescopic wand can be made with two outer diameters. Thus, the components are simplified.

More specifically, the present invention proposes an adjustable and telescopic stick device comprising:

an outer tube fitting that is hollow, extends along an axis, and includes an inner bore disposed along the axis;

a multi-section pole unit comprising a first foldable pole and at least one second foldable pole, wherein the first foldable pole and the second foldable pole have the same outer diameter, the first foldable pole and the second foldable pole are connectable to each other along an axis in an unfolded state and separable from each other in a folded state, and the first foldable pole and the second foldable pole are parallel to each other with respect to the external pipe fitting, and the first foldable pole can extend into an inner bore of the external pipe fitting when the first foldable pole and the second foldable pole are in the unfolded state; and

a positioning unit including: a connecting rope running through the external pipe fitting and the multi-section pole unit; a positioning member disposed in the first collapsible cane; and a locking member movably provided in the first foldable rod, wherein the linking rope includes a first end fixed to the outer pipe fitting and a second end opposite to the first end, the second end being connected to a second foldable rod farthest from the outer pipe fitting, the linking rope is slidable through the positioning member and connected to the locking member, the locking member is connected to the positioning member when the first and second foldable rods are in the unfolded state, the locking member positions the multi-section rod unit, and the locking member is separated from the positioning unit when the foldable rods are in the folded state.

According to a first preferred embodiment, when the outer tube fitting is pulled outward in the opposite direction with respect to the first foldable rod, the connecting cord may be pulled, and the locking member may be separated from the positioning member, and the first foldable rod and the second foldable rod may be changed from the unfolded state to the folded state.

According to a further preferred embodiment, the positioning unit further comprises a guide member movably provided in the first foldable rod, a pipe stopper provided on a top of the positioning member, and an elastic member which can push the locking member so that the locking member moves relative to the positioning member, the elastic member being provided between the pipe stopper and the locking member and providing an elastic force to the locking member, and the linking rope can be connected to the guide member, lock and connect the locking member relative to the positioning member, and distance the locking member from the positioning member.

Another preferred embodiment is characterized in that the positioning member of the positioning unit is hollow and can form a duct hole for the passage of the joint cord and comprises an inner ring surface surrounding the axis, a plurality of positioning teeth arranged around the axis and directed by the inner ring surface towards the axis, and a plurality of sliding grooves arranged between two positioning teeth, each of the positioning teeth comprising a crown portion surrounding the axis and inclined, a sliding guide portion arranged between the crown portion and an adjacent sliding groove, around the axis and inclined, a stop portion arranged between the crown portion and the sliding guide portion and parallel to the axis, a guiding groove parallel to the sliding groove and connectable to the crown portion, the crown portion and the sliding guide portion being inclined towards the same direction, a guide member slidable through the conduit aperture along an axis and comprising a straight conduit portion, a plurality of dragging portions disposed about the axis and on top of the straight conduit portion, and a plurality of guide blocks disposed on the straight conduit portion and slidable along guide slots, the dragging portions being V-shaped, each of the dragging portions comprising a pair of V-shaped dragging surfaces, the locking member comprising a hollow conduit wall and a plurality of locking clips disposed about the axis and on the conduit wall, the conduit wall may define a through-hole disposed for the passage of a tie cord therethrough, each of the locking clips comprising at a bottom thereof an inclined plane corresponding to the toothed crown portion and the sliding guide portion, when the external conduit fitting is pulled outwardly in an opposite direction relative to the first collapsible rod, the linking rope drives the guide member to move along the axis, then the guide member pushes the lock member to move the lock member upward relative to the positioning member and to move the inclined plane at the bottom of the lock clip away from the crown portion, the inclined plane at the bottom of the lock clip rotates about the axis under the guidance of the dragging surface, when the tension of the linking rope is released during operation, the lock clip smoothly falls into the chute under the guidance of the guide portion, and the guide member moves downward and is separated from the lock member by using the elastic force released by the elastic member, and the first foldable rod cane and the second foldable rod cane may be folded to be in a foldable state and to be parallel relative to the external pipe fitting.

Another preferred embodiment is characterized in that each of the positioning teeth of the positioning unit further comprises a guide portion which is disposed opposite the crown portion and is V-shaped, and the locking clip can be smoothly dropped into the chute from bottom to top by the guide portion.

The connecting rope may further have upper and lower knots that are provided between the first and second ends and that are separated, an upper positioning block that can lock and position the upper knot, and a lower positioning block that can lock and position the lower knot, the upper positioning block being provided on the pipe wall, and the lower positioning block being provided at the bottom of the straight pipe portion.

Furthermore, the present invention relates to an adjustable and retractable pole apparatus that further includes a quick-release assembly disposed in a position to connect the external tube fitting and the first foldable pole, wherein the quick-release assembly is operable to cause the first foldable pole to lock and position the external tube fitting after retraction of the first foldable pole.

More particularly, the present invention relates to an adjustable and retractable pole apparatus, preferably in the form of a folding pole having at least three tube segments and a pole handle at an uppermost external tube fitting and a tip at an opposite end of a lowermost tube segment, the folding pole comprising:

an outer tube fitting that is hollow, extends along an axis, and includes an inner bore disposed along the axis;

a multi-section pole unit including a first foldable pole and at least one second foldable pole, wherein the first foldable pole and the second foldable pole have the same outer diameter, the first foldable pole and the second foldable pole are connectable to each other along an axis in an unfolded state and separable from each other in a folded state or a foldable state, and the first foldable pole and the second foldable pole are parallel with respect to the external pipe fitting, and the first foldable pole can extend into an inner hole of the external pipe fitting when the first foldable pole and the second foldable pole are in the unfolded state; and is

Wherein, adjustable and telescopic stick equipment includes:

a positioning unit for positioning the optical fiber,

and comprises a connecting rope which is connected with the connecting rope,

the attachment cord travels through the outer tube fitting and the multi-section pole unit,

wherein the connecting cord includes a first end secured to the outer tube fitting and a second end opposite the first end, wherein the second end of the connecting cord is connected to a second collapsible wand that is furthest from the outer tube fitting,

and wherein the connecting rope can slide through the positioning component,

wherein, the positioning unit includes:

a positioning member disposed in and attached to the first foldable pole, an

A locking member coupled directly and/or indirectly to the linking cord and located within the first collapsible cane,

wherein, in the unfolded state, the positioning element and the locking element are in form-fitting engagement in a form-fitting manner, such that the coupling cord is under tension in the multi-section pole unit,

and wherein, in order to bring the apparatus to a collapsed state, the external pipe fitting and the multi-segment pole unit are pulled apart axially, thereby at least partially dragging the locking member and releasing the form-fitting positive engagement.

The locking part may be mounted such that it slides at least partially within the inner ring surface of the positioning part, and wherein the inner ring surface comprises at least one, preferably more than one, radially inwardly protruding positioning protrusions or positioning recesses, which are preferably evenly distributed in the circumferential direction, and wherein the locking part comprises at least one, preferably more than one, corresponding radially outwardly protruding locking protrusions or locking recesses, which are preferably evenly distributed in the circumferential direction, and wherein the form-fitting, form-fitting engagement is achieved by engagement of the protruding positioning protrusions and/or corresponding recesses and engagement of the protruding locking protrusions and/or corresponding recesses.

A guide member may also be provided that is mounted so as to slide at least partially within the inner annular surface of the positioning member, and is preferably configured so as to at least partially surround at least a portion of the locking member, and wherein the guide member is coupled directly and/or indirectly to the hitch rope and includes a guide feature element for dragging the locking member when the outer tube fitting is axially pulled apart from the multi-piece pole unit and for controlling the rotational position of the locking member relative to the positioning member.

The presence or absence of a form-fitting positive engagement between the positioning element and the locking element, which is rotatably mounted in the first foldable wand, preferably depends on the relative rotational position of the two elements.

The plug-in connections in the multi-section pole unit, i.e. the plug-in connections between the first and the second foldable pole, and in the case of several second foldable poles, in these second foldable poles, can each be designed such that on one pipe section the plug-in connection has a guide pin which is provided with a central through-opening for the axial travel of the coupling cord, which is firmly fastened in this pipe section by the fastening section, and which has a pin region axially opposite the fastening section, which can be slid into the other pipe section, wherein between the fastening section and the pin region a contact flange is provided which is preferably oriented radially outward in the circumferential direction, which in the assembled state axially contacts the pipe end of the other pipe section and/or a pipe closure sleeve provided on the pipe end, preferably, the axial stop is configured asymmetrically with respect to the pole axis, and/or wherein, further preferably, the pin region has an at least partially conical tapering region at its end facing the further tube section.

The quick-release assembly may take the form of an external clamping device comprising a plastic sleeve which surrounds the external pipe fitting substantially directly at least in an axial section and clamps in the closed state, wherein the plastic sleeve has at least one groove at least in the region surrounding the external pipe fitting so that the circumferential portion of the plastic sleeve can be varied in this region, and the plastic sleeve is configured to be substantially circumferential in the remaining axial region, wherein on the plastic sleeve one projection is arranged on each side of the groove, wherein the projections have coaxial through-openings arranged substantially perpendicularly to the axis of the external pipe fitting, through which a transverse pin is gripped, the pin having a stop on the outside of the second projection, and the pin having an axis of rotation for the clamping lever on the outside of the first projection, arranged perpendicular to the axis of the transverse pin and parallel to the axis (L) of the external pipe fitting, wherein the gripping lever has a lever arm which, when the gripping device is closed, at least partially surrounds the plastic sleeve, and wherein the gripping lever has an eccentric rolling area around the rotational axis, whereby the distance between the stop and a mating surface for gripping arranged on the outside of the first projection can be reduced by pivoting the gripping lever into the closed position, wherein preferably the mating surface is configured in the form of a metal element arranged at least partially in the recess in the first projection, and wherein further preferably the mating surface is configured as a flat surface or a concave surface, the radius of curvature of which is substantially adapted to the radius of curvature of the rolling area, and wherein further preferably, the plastic sleeve has in its upper section at least two, preferably at least three, axially running grooves, wherein at least one of these grooves is arranged between two projections, and preferably these grooves are distributed evenly around the circumference, and/or wherein further preferably the stop is configured to be adjustable, wherein preferably the stop is configured with a thread and the transverse pin with a counter-thread, and the stop is configured as a nut or screw, preferably with a circumferential toothed structure and/or a comb and/or a groove for engagement with an adjustment tool.

The adjustable and telescopic pole apparatus according to may comprise at least four pipe sections: an external pipe fitting, a first collapsible cane and two second collapsible cane.

Alternatively, the invention relates to an adjustable and telescopic stick apparatus comprising:

an outer tube fitting that is hollow, extends along an axis, and includes an inner bore disposed along the axis;

a multi-section pole unit, which comprises a first foldable pole and at least one second foldable pole, wherein the first foldable pole and the second foldable pole have the same outer diameter, the first foldable pole and the second foldable pole can be connected to one another along an axis in an unfolded state and can be separated from one another in a folded state, and the first foldable pole and the second foldable pole are parallel to one another with respect to the external pipe fitting, and the first foldable pole can extend into an inner bore of the external pipe fitting when the first foldable pole and the second foldable pole are in the unfolded state; and

a positioning unit comprising: a connecting rope running through the external pipe fitting and the multi-section rod unit; a positioning member disposed in the first foldable wand; and a locking member movably disposed in the first foldable rod, wherein the connecting cord includes a first end fixed to the outer pipe fitting and a second end opposite to the first end, the second end being connected to a second foldable rod farthest from the outer pipe fitting, the connecting cord being slidably passed through the positioning member and connected to the locking member, the locking member being connected to the positioning member when the first and second foldable rods are in the unfolded state, the locking member positioning the multi-section rod unit, and the locking member being separated from the positioning unit when the foldable rods are in the folded state.

According to a preferred embodiment, the adjustable and telescopic pole arrangement as described above is characterized in that, when the external pipe fitting is pulled outwards in the opposite direction with respect to the first foldable pole, the connecting cord can be pulled and the locking member can be separated from the positioning member, and the first and second foldable poles can be changed from the unfolded state to the foldable state.

According to a further preferred embodiment, the adjustable and telescopic rod cane device as described above is characterized in that the positioning unit further comprises a guide member movably disposed in the first foldable rod cane, a tube stopper disposed on top of the positioning member, the guide member can push the locking member so that the locking member moves relative to the positioning member, and an elastic member disposed between the tube stopper and the locking member and providing an elastic force to the locking member, and the linking rope can be connected to the guide member, lock and connect the locking member relative to the positioning member, and distance the locking member from the positioning member.

According to another preferred embodiment, the adjustable and telescopic pole apparatus as described above is characterized in that the positioning member of the positioning unit is hollow and may form a conduit hole for the joint cord to travel through and includes an inner ring surface surrounding the axis, a plurality of positioning teeth disposed around the axis and directed toward the axis by the inner ring surface, and a plurality of sliding grooves disposed between two positioning teeth, each of the positioning teeth including a crown portion surrounding the axis and inclined, a slide guide portion disposed between the crown portion and an adjacent sliding groove, a stopper portion disposed between the crown portion and the slide guide portion and parallel to the axis, and a guide groove parallel to the sliding groove and connectable to the crown portion, the crown portion and the sliding guide portion being inclined towards the same direction, the guide member being slidable along an axis through the conduit aperture and comprising a straight conduit portion, a plurality of dragging portions surrounding the axis and disposed on top of the straight conduit portion, and a plurality of guide blocks disposed on the straight conduit portion and slidable along guide slots, the dragging portions being V-shaped, each of the dragging portions comprising a pair of V-shaped dragging surfaces, the locking member comprising a hollow conduit wall and a plurality of locking clips surrounding the axis and disposed on the conduit wall, the conduit wall may define a through-going aperture arranged for the passage of the linking rope therethrough, each of the locking clips comprising at a bottom thereof an inclined plane corresponding to the crown portion and the sliding guide portion, when the external conduit fitting is pulled outwardly in opposite directions relative to the first collapsible wand, the linking rope drives the guide member to move along the axis, then the guide member pushes the lock member to move the lock member upward relative to the positioning member and to move the inclined plane at the bottom of the lock clip away from the crown portion, the inclined plane at the bottom of the lock clip rotates about the axis under the guidance of the dragging surface, when the tension of the linking rope is released during operation, the lock clip smoothly falls into the chute under the guidance of the guide portion, and the guide member moves downward and is separated from the lock member by using the elastic force released by the elastic member, and the first foldable rod cane and the second foldable rod cane may be folded to be in a foldable state and parallel relative to the external pipe fitting.

Each of the positioning teeth of the positioning unit further includes a guide portion that is disposed opposite to the crown portion and is V-shaped, and the locking clip can smoothly fall into the chute from bottom to top by the guide portion

The connecting rope may further include upper and lower knots that are provided between the first and second ends and that are separated, an upper positioning block that can lock and position the upper knot, and a lower positioning block that can lock and position the lower knot, the upper positioning block being provided on the pipe wall, and the lower positioning block being provided at the bottom of the straight pipe portion.

According to a preferred embodiment, the adjustable and retractable pole apparatus described above is characterized in that the pole apparatus further comprises a quick-release assembly disposed in a position to connect the external tube fitting and the first foldable pole, wherein the quick-release assembly is operable to cause the first foldable pole to lock and position the external tube fitting after retraction of the first foldable pole.

Further embodiments of the invention are indicated in the dependent claims.

Drawings

The features and effects of the present invention will be clearly presented in the embodiments of the accompanying drawings, in which:

FIG. 1 is a general profile of a telescopic pole apparatus;

FIG. 2 is an enlarged partial schematic view of FIG. 1;

FIG. 3 is a perspective view of an adjustable and retractable pole apparatus according to an embodiment of the present invention;

FIG. 4 is an exploded perspective view of this embodiment;

FIG. 5 is a fragmentary exploded perspective view of the embodiment;

FIG. 6 is a fragmentary plan exploded view of the embodiment;

FIG. 7 is a cross-sectional view of an embodiment;

FIG. 8 is an enlarged partial schematic view of FIG. 7;

FIG. 9 is a schematic plan view of the embodiment, showing the locked and positioned states of the locking member relative to the positioning member;

FIG. 10 is another expanded plan view of the embodiment illustrating jacking of the guide member relative to the positioning member;

FIG. 11 is another expanded plan view of the embodiment, illustrating the sliding movement of the locking member relative to the positioning member; and

fig. 12 is a schematic folding view of this embodiment.

Preferred embodiments of the present invention will hereinafter be described with reference to the accompanying drawings, which are for the purpose of illustrating preferred embodiments of the invention and are not for the purpose of limiting the invention.

Detailed Description

Referring to fig. 3, 4, and 7, an adjustable and retractable pole apparatus according to an embodiment of the present invention includes an external tube fitting 10, a multi-segment pole unit 20, a handle 30 disposed outside the external tube fitting 10, a positioning unit 40, and a quick-release assembly 50.

The outer pipe fitting 10 is hollow and extends along an axis L. The outer pipe fitting 10 includes an inner bore 11 disposed along the axis L.

The multi-section pole unit 20 includes a first foldable pole 21, the first foldable pole 21 being retracted or extended with respect to the external pipe fitting 10, and a plurality of second foldable poles 22, the plurality of second foldable poles 22 being attachable to or detachable from the first foldable pole 21. The first foldable rod 21 and the second foldable rod 22 have the same outer diameter. The first foldable rods 21 are hollow at both ends, and the second foldable rods 22 can be connected to each other along the axis L or separated to be parallel to each other. The second foldable poles 22 adjacent to the first foldable pole 21 may be connected to the first foldable pole 21 along the axis L (as shown in fig. 7), or the second foldable poles 22 may be separated from the first foldable pole 21 to be parallel to each other (as shown in fig. 12). The second foldable pole 22 includes a pole body 221 and a sleeve 222, the pole body 221 being hollow and straight at both ends, the sleeve 222 being disposed on top of the pole body 221. The sleeve 222 has an outer diameter smaller than that of the rod main body 221, the sleeve 222 can extend to the inside of the first foldable rod 21 or the inside of the second foldable rod 22, and the sleeve 222 includes a conical end 223, and the sleeves 222 for two adjacent second foldable rods 22 can be easily connected to the rod main body 221 by the conical end 223.

Referring to fig. 5, 6 and 8, the positioning unit 40 includes: a coupling cord 41, the coupling cord 41 running through the outer pipe fitting 10 and the multi-section pole unit 20; a positioning member 42; a guide member 43, the guide member 43 being movably disposed in the first foldable wand 21; a locking member 44, the locking member 44 being dragged by the guide member 43 and being rotatable about the axis L; a pipe stopper 45, the pipe stopper 45 being disposed on the top of the positioning member 42; and an elastic member 46, the elastic member 46 being disposed between the pipe stopper 45 and the locking member 44 and providing an elastic force to the locking member 44.

The connecting string 41 is a nylon string extending continuously, and the connecting string 41 includes: a first end 411, the first end 411 being secured to the top of the outer pipe fitting 10; a second end 412, the second end 412 being opposite the first end 411; an upper junction 413 and a lower junction 413 ', the upper junction 413 and the lower junction 413' being disposed between the first end 411 and the second end 412 (see fig. 4) and being separated; an upper positioning block 414, wherein the upper positioning block 414 can lock and position the upper knot 413; and a lower positioning block 415. the lower positioning block 415 may lock and position the lower knot 413'. The second end 412 is fixed to the top of the second foldable pole 22 that is furthest from the first foldable pole 21.

Referring to fig. 8 and 9, a positioning member 42 is disposed on top of the first collapsible wand 21 adjacent the outer tube fitting 10, the positioning member 42 being hollow and comprising: a duct hole 421, the duct hole 421 surrounding the axis L and being usable for the tie-cord 41 to run through; an inner ring surface 422; a plurality of positioning teeth 423, the plurality of positioning teeth 423 being about the axis L and disposed by the inner ring surface 422 toward the axis L; and a plurality of runners 424. One slide groove 424 is provided between two positioning teeth 423 and each of the positioning teeth 423 includes: a crown portion 425, the crown portion 425 surrounding the axis L and being inclined; a slide guide portion 426, the slide guide portion 426 being provided between the crown portion 425 and the adjacent slide groove 424, the slide guide portion 426 being around the axis L and being inclined; a stopper portion 427, the stopper portion 427 being disposed between the crown portion 425 and the slide guide portion 426 and being parallel to the axis L; and a guide channel 428, the guide channel 428 being parallel to the slide channel 424 and being connectable to the crown portion 425 or, more precisely, leading to the crown portion 425. The crown portion 425 and the slide guide portion 426 are inclined toward the same direction. Further, each of the positioning teeth 423 includes a guide portion 429, and the guide portion 429 is disposed opposite to the crown portion 425 and has a V-shape.

The guide member 43 is slidable through the duct hole 421 along the axis L, and the guide member 43 includes: the straight pipe portion 431; a plurality of dragging portions 432 around the axis L and provided on top of the straight pipe portion 431; and a plurality of guide blocks 433, the plurality of guide blocks 433 being provided on the straight pipe portion 431 and being slidable along the guide groove 428. The drag portions 432 are V-shaped, and each of the drag portions includes a pair of V-shaped drag surfaces 434. The lower positioning block 415 may stop at the bottom of the straight conduit portion 431.

The locking component 44 includes a hollow conduit wall 441 and a plurality of locking clips 442, the plurality of locking clips 442 being disposed on the conduit wall 441 about the axis L. The duct wall 441 may define a penetration aperture 443 disposed for the pintle 41 to travel therethrough. The upper locating block 414 may be disposed and located on top of the through-hole 443, with the upper locating block 414 disposed on the conduit wall 441. Each of the locking clips 442 includes an inclined plane 444 corresponding to the crown portion 425 and the slide guide portion 426 at the bottom.

The pipe stop 45 comprises a circular hole 451, the circular hole 451 extending along the axis L and being used for running the connecting cord 41 through.

A quick release assembly 50 is provided in the position where the outer tube fitting 10 is connected to the first collapsible wand 21 to allow the first collapsible wand 21 to lock and position the outer tube fitting 10 after the first collapsible wand 21 is retracted.

Fig. 7, 8 and 9 show an assembled adjustable and telescopic pole apparatus according to an embodiment of the invention. The first and second foldable rods 21, 22 are connected to each other along the axis L and are in an unfolded state. In this case, the inclined plane 444 at the bottom of the locking clip 442 of the locking part 44 is inclined against the crown portion 425, and the side of the locking clip 442 is inclined against the corresponding stopper portion 427. Thus, there is a form-fitting engagement of the locking part 44 in or at the positioning part 42, and since the linking cord 41 is attached to the locking part 44 by the upper knot 413 and the upper positioning block 415, the linking cord 41 is under high tension in the multi-section pole unit 20, preventing relative axial displacement and disengagement of the rods of the multi-section pole unit 20, and preventing folding of the rods of the multi-section pole unit 20. The coupling cord 41 between the upper knot 413 and the second end 412 has a linear shape and has a large tension. The connecting cord 41 between the upper knot 413 and the first end 411 becomes slack or tight depending on the degree of extension or retraction of the first collapsible wand 21 relative to the outer pipe fitting 10. The locking element 44 is connected to the positioning element 42 by means of a locking element and is positioned on the multi-section pole unit 20.

When the multi-section pole unit 20 is deployed, the extension or retraction of the first collapsible pole 21 can be adjusted relative to the outer tube fitting 10 by using the quick-release assembly 50, and the length of the telescopic pole apparatus can be adjusted. After the length is adjusted, the quick release assembly 50 may be used for locking and positioning.

When the user wants to fold the telescopic pole apparatus, the operator first puts the quick-release assembly 50 in a relaxed state, and then holds the handle 30 (outer tube fitting 10) and the first foldable pole 21 and pulls the handle 30 (outer tube fitting 10) and the first foldable pole 21 in opposite directions, i.e., axially apart. In this case, since the upper knot 413 of the linking rope 41 positions the locking member 44, the second end portion 412 is fixed on the top of the second foldable pole 22 farthest from the first foldable pole 21, the lower positioning block 415 is locked and positioned at the lower knot 413', and the lower positioning block 415 is also pressed against the bottom of the straight pipe portion 431, so that the linking rope 41, the guide member 43, and the locking member 44 are dragged when the handle 30 is pulled. As described in detail below, this releases the positive-fit engagement between the locking member 44 and the positioning member 42, and thus the tension on the attachment cord, allowing the rods of the multi-section pole unit 20 to shift and disengage axially relative to one another, and allowing the rods of the multi-section pole unit 20 to be folded.

As shown in fig. 10, referring to fig. 8, when the guide member 43 is pulled by the joint cord 41, the dragging member 432 may serve to push the locking member 44 upward with respect to the positioning member 42, and when the inclined plane 444 at the bottom of the locking clip 442 moves away from the crown portion 425 so that the locking clip 442 also moves away from the corresponding stopper portion 427 (in this case, the elastic member 46 is in a compressed state and contains the released elastic force), the inclined plane 444 of the locking clip 442 is guided by the dragging surface 434 to rotate about the axis L. When the tension of the linking rope 41 is released during operation, the locking clip 442 smoothly drops into the chute 424 guided by the guide portion 426, and the guide member 43 moves downward and axially separates from the positioning member 42 (in the state shown in fig. 11) by using the elastic force released by the elastic member 46. In this case, the tension of the linking rope 41 disappears, the second foldable rod 22 can be separated from the first foldable rod 21, the second foldable rod 22 itself can be separated from each other, and the first foldable rod 21 and the second foldable rod 22 can be folded to be parallel to each other with respect to the external pipe fitting 10 (see fig. 12).

When the multi-section pole unit 20 needs to be changed from the foldable state to the unfolded state again, the operator pulls the handles 30 and the first foldable pole 21 outward in the opposite direction, and pushes the guide members 43 to the bottom by using the lower knots 413' of the connecting cords 41. The locking clip 442 slides smoothly into the slide groove 424 by the guide portion 429, and the catching portion 432 pushes the locking member 44 upward again. The inclined plane 444 at the bottom of the locking clip 442 rotates around the axis L under the guidance of the dragging surface 434, and the locking clip 442 falls smoothly into the crown portion 425 when the tension of the linking cord 41 is released. The linking rope 41 is restored to a state having a large tension, and can be restored to the unfolded state shown in fig. 7, 8 and 9.

Thus, the adjustable and telescopic pole apparatus according to the embodiments of the present invention can be switched between the unfolded state and the folded state by pulling the handle 30 and the first foldable pole 21. Convenient operation and avoids the risk of finger injury.

Furthermore, since the first and second foldable poles 21, 22 have the same outer diameter and the first foldable pole 21 can extend into the inner bore 11 of the outer pipe fitting 10, the main pole parts of the telescopic pole can be made with only two outer diameters. This simplifies the components, facilitates manufacturing, and makes material management more convenient. In other words, an adjustable and telescopic pole apparatus according to an embodiment of the invention can indeed achieve the object of the invention.

The above description is only an embodiment of the present invention and does not limit the scope of the present invention. Any simple and equivalent modifications and variations made based on the contents of the claims and the specification of the present application document are included in the scope of the present invention.

List of reference numerals

10 external pipe fitting

L axis

11 inner hole

20 multi-section stick unit

21 first foldable stick

22 second foldable stick

221 rod stick main body

222 sleeve

223 head end part

30 handle

31 tip part

40 positioning unit

41 connecting rope

411 first end part

412 second end portion

413 upper knot

413' lower knot

414 positioning block

415 lower positioning block

42 positioning part

421 pipeline hole

422 inner ring surface

423 positioning tooth

424 chute

425 crown portion

426 sliding guide part

427 stop part

428 guide groove

429 guide part

43 guide member

431 straight pipe section

432 drag portion

433 guide block

434 drag surface

44 locking member

441 pipeline wall

442 locking clip

443 penetration hole

444 inclined plane

45 pipe stop

451 round hole

46 elastic member

50 quick release assembly