阅读说明：本技术 一种伸缩杆的摇杆式调节锁紧装置 (Rocker type adjusting and locking device of telescopic rod ) 是由 颜科学 于 2020-12-08 设计创作，主要内容包括：本发明涉及一种伸缩杆的摇杆式调节锁紧装置,包括：外管杆、伸入在所述外管杆内的内管杆组和固定在外管杆上的锁紧摇杆装置；所述内管杆组的侧壁上设置有用于限制内管杆组在所述外管杆内来回移动的一个或多个限位凹槽或限位孔,或所述内管杆组的侧壁上设有调节条和安装所述调节条的开口孔槽,所述调节条上设置有用于限制所述内管杆组在所述外管杆内来回移动的一个或多个限位凹槽或限位孔；所述锁紧摇杆装置内设限位凸台；所述限位凸台能够分别卡在或压在所述内管杆组的侧壁上的限位凹槽或限位孔内或者面上,或分别卡在或压在所述调节条上的限位凹槽或限位孔内、面上。本发明提供的调节锁紧装置具有结构简单合理、操作使用方便及安全可靠等优点。(The invention relates to a rocker type adjusting and locking device of a telescopic rod, which comprises: the locking rocker device comprises an outer pipe rod, an inner pipe rod group extending into the outer pipe rod and a locking rocker device fixed on the outer pipe rod; one or more limiting grooves or limiting holes for limiting the inner pipe rod group to move back and forth in the outer pipe rod are formed in the side wall of the inner pipe rod group, or an adjusting strip and an opening hole groove for mounting the adjusting strip are formed in the side wall of the inner pipe rod group, and one or more limiting grooves or limiting holes for limiting the inner pipe rod group to move back and forth in the outer pipe rod are formed in the adjusting strip; a limiting boss is arranged in the locking rocker device; the limiting bosses can be clamped or pressed in or on the limiting grooves or the limiting holes or the limiting surfaces on the side walls of the inner pipe rod group respectively, or clamped or pressed in or on the limiting grooves or the limiting holes or the limiting surfaces on the adjusting strips respectively. The adjusting and locking device provided by the invention has the advantages of simple and reasonable structure, convenience in operation and use, safety, reliability and the like.)

1. The utility model provides a locking device is adjusted to rocker-type of telescopic link which characterized in that includes: the device comprises an outer pipe rod (13), an inner pipe rod group (1) extending into the outer pipe rod (13) and a locking rocker device fixed on the outer pipe rod (13);

one or more limiting grooves or limiting holes (3) used for limiting the inner pipe rod group (1) to move back and forth in the outer pipe rod (13) are formed in the side wall of the inner pipe rod group (1), or an adjusting strip (19) and an open hole groove (18) for mounting the adjusting strip are formed in the side wall of the inner pipe rod group (1), and one or more limiting grooves or limiting holes (3) used for limiting the inner pipe rod group (1) to move back and forth in the outer pipe rod (13) are formed in the adjusting strip (19);

a limit boss (8) is arranged in the locking rocker device;

the limiting bosses (8) can be respectively clamped or pressed on limiting grooves or limiting holes (3) or surfaces on the side wall of the inner pipe rod group (1), or respectively clamped or pressed on limiting grooves or limiting holes (3) or surfaces on the adjusting bar (19).

2. The rocker-type adjustment locking device of claim 1,

the locking rocker device comprises: a fixed sleeve (5), a locking rocker fixed pin (14) and a locking rocker (17);

the fixed sleeve (5) is arranged on the outer pipe rod (13);

the middle part of the locking rocker (17) is fixed on the fixing sleeve through a locking rocker fixing pin (14), and the locking rocker (17) rotates along the locking rocker fixing pin (14);

the locking rocker (17) comprises: a locking handle (10) and a locking rocker arm (15);

the front end of the locking rocker arm (15) is provided with a limiting boss (8) which penetrates through a single-wall hole (12) on the outer pipe rod (13) and a limiting groove or a limiting hole (3) of the inner pipe rod group (1) or the adjusting strip;

a return spring (11) is arranged between the rear end of the locking handle (10) and the fixed sleeve (5);

under the elasticity of the return spring (11), the limiting boss (8) of the locking rocker arm (15) is always clamped or pressed on a limiting groove or a limiting hole (3) or a limiting surface on the side wall of the inner pipe rod group (1) respectively, or is clamped or pressed on a limiting groove or a limiting hole (3) or a limiting surface on the adjusting strip (19) respectively, so that the inner pipe rod group (1) is fixed in the outer pipe rod (13) and cannot move;

the locking handle (10) is pressed down to enable the locking rocker (17) to rotate in the opposite direction along the locking rocker fixing pin (14), so that the limiting boss (8) of the locking rocker (15) is separated from the limiting groove or the limiting hole (3) or the surface on the side wall of the inner pipe rod group (1) respectively, or is separated from the limiting groove or the limiting hole (3) or the surface on the adjusting strip (19) respectively to achieve the purpose of unlocking.

3. The rocker-type adjustment locking device according to claim 2,

the fixed sleeve (5) is also provided with a second locking device;

the second locking device includes: a handle (9) and a fixing pin (4);

the fixed sleeve (5) is provided with a cavity opening for arranging the handle (9) and the fixed pin (4);

the handle (9) is rotatably arranged at the cavity opening of the fixed sleeve (5) and is connected in series through the fixed pin (4) and arranged in the cavity opening;

the fixing sleeve (5) is provided with a fastening sheet (6);

a locking boss (16B) or a locking smooth surface (16A) is arranged on the fastening sheet (6);

an eccentric cam (7) is arranged at the rotating position of the handle (9);

the handle (9) is used along the fixed pin (4) in a rotating mode, the eccentric cam (7) of the handle (9) is tightly pressed on the fastening piece (6), and the locking boss (16B) or the locking smooth surface (16A) of the fastening piece (6) can be clamped or pressed on the limiting groove or the limiting hole (3) or the surface on the side wall of the inner pipe rod group (1) respectively, or clamped or pressed on the limiting groove or the limiting hole (3) or the surface on the adjusting strip (19) respectively.

4. The rocker-type adjustment locking device according to claim 2,

the fixed sleeve (5) is also provided with a third locking device;

the third locking device further comprises: handle (9), fixed pin (4) and fastening piece (6)

The fixed sleeve is provided with a cavity opening for arranging the handle (9) and the fixed pin (4);

the handle (9) is rotatably arranged at the cavity opening of the fixed sleeve (5) and is connected in series through the fixed pin (4) and arranged in the cavity opening;

a single-wall hole (12) is formed in the side wall of the outer pipe rod (13);

the fastening sheet (6) is placed in a single-wall hole (12) of the fixed sleeve (5) corresponding to the outer pipe rod (13);

a locking boss (16B) or a locking smooth surface (16A) is arranged on the fastening sheet (6);

an eccentric cam (7) is arranged at the rotating position of the handle (9);

the handle (9) is used along the fixed pin (4) in a rotating mode, the eccentric cam (7) of the handle (9) is tightly pressed on the fastening piece (6), and the locking boss (16B) or the locking smooth surface (16A) of the fastening piece (6) can be clamped or pressed on the limiting groove or the limiting hole (3) or the surface on the side wall of the inner pipe rod group (1) respectively, or clamped or pressed on the limiting groove or the limiting hole (3) or the surface on the adjusting strip (19) respectively.

5. The rocker-type adjustment locking device according to claim 2,

the upper end of the fixed sleeve is also provided with a quick-release lock device;

the quick release lock device comprises: a clamp (29), a quick release (28), a screw (32) and a locking nut (31) which are arranged at the upper end of the fixed sleeve (5);

the quick release (28) is rotatably arranged in the middle of the clamp (29) and is connected in series through the screw (32); and locked by means of said locking nut (31).

The head of the quick release (28) is provided with a quick release eccentric cam (30);

when the quick release (28) is moved to rotate so that a quick release eccentric cam (30) of the quick release (28) is tightly pressed on the clamp (29), the clamp (29) contracts inwards to deform and tightly clasp the inner pipe rod group (1), so that the inner pipe rod group (1) can be fixed in the outer pipe rod (13);

when the quick release (28) is moved to rotate in the other direction to enable the quick release eccentric cam (30) of the quick release (28) to be separated from the clamp (29), the clamp (29) is restored by the elasticity of the clamp, and the inner pipe rod group (1) can move back and forth in the outer pipe rod (13).

6. The rocker-type adjustment locking device according to claim 2,

the upper end of the fixed sleeve (5) is also provided with a thread lock device;

the thread lock device includes: a thread column (25) and a locking sleeve (26) which are arranged at the upper end of the fixed sleeve (5);

a locking inner nut (27) matched with the thread of the threaded column (25) is arranged in the locking sleeve (26);

a locking boss (16B) or a locking smooth surface (16A) is arranged in the threaded column (25);

when the locking sleeve (26) is rotated to move downwards along the threaded column (25), the threaded column (25) is tightened inwards, so that the locking boss (16B) or the locking smooth surface (16A) inside the threaded column (25) is clamped or pressed on a limiting groove or a limiting hole (3) or a limiting surface on the side wall of the inner pipe rod group (1) respectively, or is clamped or pressed on a limiting groove or a limiting hole (3) or a limiting surface arranged on the adjusting strip (19) respectively;

when the locking sleeve rotates to move reversely, the thread column is restored by the elasticity of the thread column, the locking boss (16B) or the locking smooth surface (16A) inside the thread column is separated from the limiting groove or the limiting hole (3) or the surface on the side wall of the inner tube rod group (1), or is separated from the limiting groove or the limiting hole (3) or the surface on the adjusting strip (19), and the inner tube rod group (1) can move back and forth in the outer tube rod (13).

7. Rocker-type adjustment locking device according to claim 3 or 4,

the handle (9) can be arranged in the cavity of the fixed sleeve (5) in the same direction with the telescopic rod and communicated with the fixed pin (4) in series connection, or is arranged in the middle of the fixed sleeve (5) in the vertical direction with the telescopic rod and communicated with the fixed pin (4) in series connection.

8. The adjustable locking device of a telescopic rod according to any one of claims 1 to 6,

the shape of the limiting groove (3) on the inner pipe rod (2) comprises but is not limited to: any one of a circular shape, a T-shape, an inverted trapezoid shape and a different circular arc shape;

the limiting holes (3) on the inner pipe rod (2) comprise but are not limited to: any one of a circle, a square, a long bar, and a heteromorphic arc.

9. The adjustable locking device of a telescopic rod according to any one of claims 1 to 6,

the open hole slot (18) of the inner tube rod (2) includes but is not limited to: any one of a circular shape, a T-shape, an inverted trapezoid shape and a different circular arc shape;

the shape of the limiting groove (3) of the adjusting strip (19) comprises but is not limited to: any one of circular, trapezoidal, irregular circular arc, square and triangular.

10. The adjustable locking device of a telescopic rod according to any one of claims 3 to 6,

the locking boss (16B) is matched with the limiting groove or the limiting hole (3) of the inner pipe rod group (1) in shape;

the locking boss (16B) is matched with the opening hole groove (18) of the inner pipe rod (1) or the limiting groove (3) of the adjusting strip (19) in shape;

the shape of the locking surface is a smooth surface.

Technical Field

The invention belongs to the technical field of telescopic rods, and particularly relates to a rocker type adjusting and locking device of a telescopic rod.

Background

In the rod member whose length needs to be adjusted, a telescopic mechanism is generally used. In the rod member whose length is required to be adjusted, a telescopic mechanism is generally used. The change in length is usually achieved using a telescopic rod in the shape of a shaft or rod. In the telescopic mechanism, a locking device and a positioning device are required. The locking device is used for fixing the relative position of the telescopic mechanism, and the positioning device is usually used for ensuring the reliability and the safety function of positioning. Thereby the combined action of both reaches the purpose of locking, and prior art can realize locking and location, but in actual use, then finds the locking and the location mode that use location marble and screw thread to compress tightly, the operation difficulty, and the regulation length scope is few, awkward problem.

Disclosure of Invention

Technical problem to be solved

In order to solve the above problems in the prior art, the present invention provides a rocker type adjusting and locking device for a telescopic rod.

(II) technical scheme

In order to achieve the purpose, the invention adopts the main technical scheme that:

a rocker type adjusting and locking device of a telescopic rod comprises: the device comprises an outer pipe rod (13), an inner pipe rod group (1) extending into the outer pipe rod (13) and a locking rocker device fixed on the outer pipe rod (13);

one or more limiting grooves or limiting holes (3) used for limiting the inner pipe rod group (1) to move back and forth in the outer pipe rod (13) are formed in the side wall of the inner pipe rod group (1), or an adjusting strip (19) and an open hole groove (18) for mounting the adjusting strip are formed in the side wall of the inner pipe rod group (1), and one or more limiting grooves or limiting holes (3) used for limiting the inner pipe rod group (1) to move back and forth in the outer pipe rod (13) are formed in the adjusting strip (19);

a limit boss (8) is arranged in the locking rocker device;

the limiting bosses (8) can be respectively clamped or pressed on limiting grooves or limiting holes (3) or surfaces on the side wall of the inner pipe rod group (1), or respectively clamped or pressed on limiting grooves or limiting holes (3) or surfaces on the adjusting bar (19).

Preferably, the locking rocker device comprises: a fixed sleeve (5), a locking rocker fixed pin (14) and a locking rocker (17);

the fixed sleeve (5) is arranged on the outer pipe rod (13);

the middle part of the locking rocker (17) is fixed on the fixing sleeve through a locking rocker fixing pin (14), and the locking rocker (17) rotates along the locking rocker fixing pin (14);

the locking rocker (17) comprises: a locking handle (10) and a locking rocker arm (15);

the front end of the locking rocker arm (15) is provided with a limiting boss (8) which penetrates through a single-wall hole on the outer pipe rod (13) and a limiting groove or a limiting hole (3) of the inner pipe rod group (1);

a return spring (11) is arranged between the rear end of the locking handle (10) and the fixed sleeve (5);

under the elasticity of the return spring (11), the limiting boss (8) of the locking rocker arm (15) is always clamped or pressed on a limiting groove or a limiting hole (3) or a limiting surface on the side wall of the inner pipe rod group (1) respectively, or is clamped or pressed on a limiting groove or a limiting hole (3) or a limiting surface on the adjusting strip (19) respectively, so that the inner pipe rod group (1) is fixed in the outer pipe rod (13) and cannot move;

the locking handle (10) is pressed down to enable the locking rocker (17) to rotate along the locking rocker fixing pin (14) in the opposite direction, so that the limiting boss (8) of the locking rocker (15) is separated from the limiting groove or the limiting hole (3) or the surface on the side wall of the inner tube rod group (1), or is separated from the limiting groove or the limiting hole (3) or the surface on the adjusting strip (19) respectively to achieve the purpose of unlocking.

Preferably, a second locking device is further arranged on the fixing sleeve (5);

the second locking device includes: a handle (9) and a fixing pin (4);

the fixed sleeve (5) is provided with a cavity opening for arranging the handle (9) and the fixed pin (4);

the handle (9) is rotatably arranged at the cavity opening of the fixed sleeve (5) and is connected in series through the fixed pin (4) and arranged in the cavity opening;

the fixing sleeve (5) is provided with a fastening sheet (6);

a locking boss (16B) or a locking smooth surface (16A) is arranged on the fastening sheet (6);

an eccentric cam (7) is arranged at the rotating position of the handle (9);

the handle (9) is used along the fixed pin (4) in a rotating mode, the eccentric cam (7) of the handle (9) is tightly pressed on the fastening piece (6), and the locking boss (16B) or the locking smooth surface (16A) of the fastening piece (6) can be clamped or pressed on the limiting groove or the limiting hole (3) or the surface on the side wall of the inner pipe rod group (1) respectively, or clamped or pressed on the limiting groove or the limiting hole (3) or the surface on the adjusting strip (19) respectively.

Preferably, a third locking device is further arranged on the fixing sleeve (5);

the third locking device further comprises: handle (9), fixed pin (4) and fastening piece (6)

The fixed sleeve is provided with a cavity opening for arranging the handle (9) and the fixed pin (4);

the handle (9) is rotatably arranged at the cavity opening of the fixed sleeve (5) and is connected in series through the fixed pin (4) and arranged in the cavity opening;

a single-wall hole (12) is formed in the side wall of the outer pipe rod (13);

the fastening sheet (6) is placed in a single-wall hole (12) of the fixed sleeve (5) corresponding to the outer pipe rod (13);

a locking boss (16B) or a locking smooth surface (16A) is arranged on the fastening sheet (6);

an eccentric cam (7) is arranged at the rotating position of the handle (9);

the handle (9) is used along the fixed pin (4) in a rotating mode, the eccentric cam (7) of the handle (9) is tightly pressed on the fastening piece (6), and the locking boss (16B) or the locking smooth surface (16A) of the fastening piece (6) can be clamped or pressed on the limiting groove or the limiting hole (3) or the surface on the side wall of the inner pipe rod group (1) respectively, or clamped or pressed on the limiting groove or the limiting hole (3) or the surface on the adjusting strip (19) respectively.

Preferably, the upper end of the fixing sleeve is also provided with a quick-release lock device;

the quick release lock device comprises: a clamp (29), a quick release (28), a screw (32) and a locking nut (31) which are arranged at the upper end of the fixed sleeve (5);

the quick release (28) is rotatably arranged in the middle of the clamp (29) and is connected in series through the screw (32); and locked by means of said locking nut (31);

the head of the quick release (28) is provided with a quick release eccentric cam (30);

when the quick release (28) is moved to rotate so that a quick release eccentric cam (30) of the quick release (28) is tightly pressed on the clamp (29), the clamp (29) contracts inwards to deform and tightly clasp the inner pipe rod group (1), so that the inner pipe rod group (1) can be fixed in the outer pipe rod (13);

when the quick release (28) is moved to rotate in the other direction to enable the quick release eccentric cam (30) of the quick release (28) to be separated from the clamp (29), the clamp (29) is restored by the elasticity of the clamp, and the inner pipe rod group (1) can move back and forth in the outer pipe rod (13).

Preferably, the upper end of the fixed sleeve (5) is also provided with a thread lock device;

the thread lock device includes: a thread column (25) and a locking sleeve (26) which are arranged at the upper end of the fixed sleeve (5);

a locking inner nut (27) matched with the thread of the threaded column (25) is arranged in the locking sleeve (26);

a locking boss (16B) or a locking smooth surface (16A) is arranged in the threaded column (25);

when the locking sleeve (26) is rotated to move downwards along the threaded column (25), the threaded column (25) is tightened inwards, so that the locking boss (16B) or the locking smooth surface (16A) inside the threaded column (25) is clamped or pressed on a limiting groove or a limiting hole (3) or a limiting surface on the side wall of the inner pipe rod group (1) respectively, or is clamped or pressed on a limiting groove or a limiting hole (3) or a limiting surface on the adjusting strip (19) respectively.

When the locking sleeve rotates to move reversely, the thread column is restored by the elasticity of the thread column, the locking boss (16B) or the locking smooth surface (16A) inside the thread column is separated from the limiting groove or the limiting hole (3) or the surface on the side wall of the inner tube rod group (1), or is separated from the limiting groove or the limiting hole (3) or the surface on the adjusting strip (19), and the inner tube rod group (1) can move back and forth in the outer tube rod (13).

Preferably, the handle (9) can be arranged in the cavity of the fixing sleeve (5) in the same direction with the telescopic rod and connected in series through the fixing pin (4), or arranged in the middle of the fixing sleeve (5) in the direction perpendicular to the telescopic rod and connected in series through the fixing pin (4).

Preferably, the shape of the limiting groove (3) on the inner tube rod (2) comprises but is not limited to: any one of a circular shape, a T-shape, an inverted trapezoid shape and a different circular arc shape;

the limiting holes (3) on the inner pipe rod (2) comprise but are not limited to: any one of a circle, a square, a long bar, and a heteromorphic arc.

Preferably, the open bore slots (18) of the inner tube stem (2) include, but are not limited to: any one of a circular shape, a T-shape, an inverted trapezoid shape and a different circular arc shape;

the shape of the limiting groove (3) of the adjusting strip (19) comprises but is not limited to: any one of circular, trapezoidal, irregular circular arc, square and triangular.

Preferably, the locking boss (16B) is matched with the limiting groove or the limiting hole (3) of the inner pipe rod group (1) in shape;

the locking boss (16B) is matched with the opening hole groove (18) of the inner pipe rod (1) or the limiting groove (3) of the adjusting strip (19) in shape;

the shape of the locking surface is a smooth surface.

(III) advantageous effects

The invention has the beneficial effects that: according to the rocker type adjusting and locking device of the telescopic rod, the limiting bosses of the locking rocker device are respectively clamped or pressed on the limiting grooves or the limiting holes or the limiting surfaces on the side walls of the inner tube rod group, or respectively clamped or pressed on the limiting grooves or the limiting holes or the limiting surfaces on the adjusting strips. Thereby fixing the inner pipe rod immovably in the outer pipe rod. The limiting bosses of the locking rocker device are respectively separated from the limiting grooves or the limiting holes or the limiting surfaces on the side walls of the inner pipe rod group, or are respectively separated from the limiting grooves or the limiting holes or the limiting surfaces on the adjusting strips, and the inner pipe rod group can move back and forth in the outer pipe rod to adjust the length in the outer pipe. The scheme of the invention has the advantages of simple and reasonable structure, convenient operation and use, safety, reliability and the like.

Drawings

FIG. 1A is a cross-sectional structural view of an inner tube side wall of a locking rocker type adjusting and locking device provided with a limiting groove or a limiting hole and a third locking device in the embodiment of the invention;

FIG. 1B is a schematic structural view of an embodiment of the locking rocker type adjusting and locking device of the present invention, wherein a limiting groove or a limiting hole is formed in a side wall of an inner tube, and a third locking device is arranged on the side wall of the inner tube;

FIG. 2A is a cross-sectional view of a second locking device and a side wall of an inner tube having a position-limiting groove or hole according to an embodiment of the present invention;

FIG. 2B is a schematic structural view of a second locking device in an embodiment of the present invention, in which a limiting groove or a limiting hole is formed in a sidewall of an inner tube;

FIG. 3A is a cross-sectional structural view of a second locking device with an inner tube having an adjustment bar according to an embodiment of the present invention;

FIG. 3B is a schematic structural diagram of a second locking device with an inner tube having an adjustment bar according to an embodiment of the present invention;

FIG. 4A is a cross-sectional structural view of a third locking device with an inner tube having an adjustment bar according to an embodiment of the present invention;

FIG. 4B is a schematic structural diagram of a third locking device with an inner tube having an adjustment bar according to an embodiment of the present invention;

FIG. 5A is a cross-sectional view of a third locking device and a side wall of an inner tube having a position-limiting groove or hole according to an embodiment of the present invention;

FIG. 5B is a schematic structural view of a third locking device in an embodiment of the present invention, in which a position-limiting groove or a position-limiting hole is formed in a sidewall of an inner tube;

FIG. 6A is a cross-sectional structure view of the second locking device of the embodiment of the present invention, wherein the inner tube of the sidewall is provided with a position-limiting groove or a position-limiting hole and a handle, and the handle is disposed on the fixing sleeve in the same direction as the telescopic rod;

FIG. 6B is a schematic structural view of the second locking device of the embodiment of the present invention, in which the inner tube of the sidewall is provided with a position-limiting groove or a position-limiting hole and the handle is disposed on the fixing sleeve in the same direction as the telescopic rod;

FIG. 7A is a cross-sectional view of the locking rocker type adjusting and locking device with quick release locking according to the embodiment of the present invention;

FIG. 7B is a schematic view of a locking rocker type adjusting locking device with a quick release locking structure according to an embodiment of the present invention;

FIG. 8A is a cross-sectional view block diagram of a locking rocker type adjustment locking device with a threaded lock in an embodiment of the present invention;

FIG. 8B is a schematic view of a locking rocker type adjustment locking device with a threaded lock according to an embodiment of the present invention;

FIG. 9A is a schematic view of the shape and structure of a limiting groove of an adjusting strip according to an embodiment of the present invention;

FIG. 9B is a schematic diagram of a shape structure of a limiting groove of the adjusting strip according to the embodiment of the present invention;

FIG. 10A is a schematic view of an embodiment of the present invention illustrating the structure of the open hole slot of the inner tubular rod assembly;

fig. 10B is a schematic diagram of the structure of the open hole slot of the inner tube rod set in the embodiment of the present invention.

[ description of reference ]

1: an inner tube rod set; 2: an inner tube rod; 3: a limiting groove or a limiting hole; 4: a fixing pin; 5: fixing a sleeve; 6: fastening the sheet; 7: an eccentric cam; 8: a limiting boss; 9: a handle; 10: locking the handle; 11: a return spring; 12: a single-wall hole; 13: an outer tube rod; 14: a locking rocker fixing pin; 15: locking the rocker arm; 16B: locking the boss; 17: locking the rocker; 18: an open hole slot; 19: an adjustment bar; 25: a threaded post; 26: a locking sleeve; 27: locking the inner nut; 28: quick disassembly; 29: tying young; 30: a quick-release eccentric cam; 31: locking the nut; 32: a screw.

Detailed Description

For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.

As shown in fig. 1A-2B: the embodiment discloses a locking device is adjusted to rocker-type of telescopic link, includes: the device comprises an outer pipe rod 13, an inner pipe rod group 1 extending into the outer pipe rod 13 and a locking rocker device fixed on the outer pipe rod 13.

One or more limiting grooves or limiting holes 3 for limiting the inner pipe rod group 1 to move back and forth in the outer pipe rod 13 are arranged on the side wall of the inner pipe rod group 1, or an adjusting strip 19 and an open hole groove 18 for installing the adjusting strip are arranged on the side wall of the inner pipe rod group 1, and one or more limiting grooves or limiting holes 3 for limiting the inner pipe rod group 1 to move back and forth in the outer pipe rod 13 are arranged on the adjusting strip 19; a limit boss 8 is arranged in the locking rocker device; the limiting bosses 8 can be respectively clamped or pressed on the limiting grooves or the limiting holes 3 or the surfaces on the side wall of the inner pipe rod group 1, or respectively clamped or pressed on the limiting grooves or the limiting holes 3 or the surfaces on the adjusting strip 9.

Specifically, the locking rocker device described in this embodiment includes: a securing sleeve 5, a locking rocker securing pin 14 and a locking rocker 17.

The fixed sleeve 5 is arranged on the outer pipe rod 13; the middle part of the locking rocker 17 is fixed on the fixing sleeve through a locking rocker fixing pin 14, and the locking rocker 17 rotates along the locking rocker fixing pin 14; the locking rocker 17 comprises: a locking handle 10 and a locking rocker arm 15; the front end of the locking rocker arm 15 is provided with a limiting boss 8 which penetrates through a single-wall hole 12 on the outer pipe rod 13 and a limiting groove or a limiting hole 3 of the inner pipe rod group 1 or the adjusting strip; a return spring 11 is arranged between the rear end of the locking handle 10 and the fixed sleeve 5.

Under the elastic force of the return spring 11, the limit boss 8 of the locking rocker arm 15 is always respectively clamped or pressed on the limit groove or the limit hole 3 or the surface on the side wall of the inner pipe rod group 1, or respectively clamped or pressed on the limit groove or the limit hole 3 or the surface on the adjusting strip 9, so that the inner pipe rod group 1 is fixed in the outer pipe rod 13 and cannot move.

The locking handle 10 is pressed down to enable the locking rocker 17 to rotate in the opposite direction along the locking rocker fixing pin 14, so that the limiting boss 8 of the locking rocker 15 is respectively separated from the limiting groove or the limiting hole 3 or the surface on the side wall of the inner tube rod group 1, or is respectively separated from the limiting groove or the limiting hole 3 or the surface on the adjusting strip 19, and the purpose of unlocking is achieved.

One scheme that can be combined in the embodiment

The rocker locking device provided in this embodiment can also be provided with a second locking device as shown in fig. 1A-6B, specifically, the second locking device includes: a handle 9 and a fixing pin 4; the fixed sleeve is provided with a cavity opening for arranging the handle 9 and the fixed pin 4; the handle 9 is rotatably arranged at the cavity opening of the fixed sleeve 5 and is connected in series through the fixed pin 4 and is arranged in the cavity opening; the fixing sleeve 5 is provided with a fastening sheet 6; the fastening sheet 6 is provided with a locking boss 16B or a locking smooth surface 16A; an eccentric cam 7 is arranged at the rotating position of the handle 9; the handle 9 is rotated along the fixing pin 4 to use the eccentric cam 7 of the handle 9 to tightly press the fastening sheet 6, so that the locking boss 16B of the fastening sheet 6 is respectively clamped or pressed on the limiting groove or the limiting hole 3 or the surface on the side wall of the inner pipe rod group 1, or is respectively clamped or pressed on the limiting groove or the limiting hole 3 or the surface on the adjusting strip 9.

In this embodiment, the rocker latch can also be provided with a third latch, here intended to replace the second latch of the previous example, in particular said third latch comprising: handle 9, fixing pin 4 and fastening piece 6. The fixed sleeve is provided with a cavity opening for arranging the handle 9 and the fixed pin 4; the handle 9 is rotatably arranged at the cavity opening of the fixed sleeve 5 and is connected in series through the fixed pin 4 and is arranged in the cavity opening; a single-wall hole 12 is formed in the side wall of the outer pipe rod 13; the fastening sheet 6 is placed in a single-wall hole 12 of the fixing sleeve 5 corresponding to the outer pipe rod 13; the fastening sheet 6 is provided with a locking boss 16B or a locking smooth surface 16A; an eccentric cam 7 is arranged at the rotating position of the handle 9; the handle 9 is rotated along the fixing pin 4 and is pressed on the fastening sheet 6 by using the eccentric cam 7 of the handle 9, so that the locking boss 16B or the locking smooth surface 16A of the fastening sheet 6 can be respectively clamped or pressed on the limiting groove or the limiting hole 3 or the surface on the side wall of the inner pipe rod group 1, or respectively clamped or pressed on the limiting groove or the limiting hole 3 or the surface on the adjusting strip 19.

It should be noted that: in this embodiment, the handle 9 can be disposed in the cavity of the fixing sleeve 5 in the same direction as the telescopic rod and connected in series with the fixing pin 4, or disposed in the middle of the fixing sleeve 5 in the direction perpendicular to the telescopic rod and connected in series with the fixing pin 4.

A second scheme combinable in the embodiment

As shown in fig. 7A and 7B: the upper end of the fixing sleeve 5 in this embodiment is further provided with a quick-release lock device.

Specifically, the quick release lock device includes: the clamp 29, the quick release 28, the screw 32 and the locking nut 31 are arranged at the upper end of the fixed sleeve 5; the quick release 28 is rotatably arranged in the middle of the clamp 29 and connected in series through the screw rod 32; and locked by means of said locking nut 31. The head of the quick release 28 is provided with a quick release eccentric cam 30.

In the actual use process, when the quick release 28 is moved and rotated to enable the quick release eccentric cam 30 of the quick release 28 to be tightly pressed on the clamp 29, the clamp 29 contracts inwards to deform and tightly clamp the inner pipe rod group 1, so that the inner pipe rod group 1 can be fixed in the outer pipe rod 13.

When the quick release 28 is moved and rotated in the other direction to separate the quick release eccentric cam 30 of the quick release 28 from the clip 29, the clip 29 is restored by the elasticity of itself, and the inner tube rod set 1 can move back and forth in the outer tube rod 13.

A third scheme combinable in the present embodiment

As shown in fig. 8A and 8B: the upper end of the fixing sleeve 5 in this embodiment is also provided with a thread lock device.

Specifically, the screw lock device described in the present embodiment includes: a threaded column 25 and a locking sleeve 26 arranged at the upper end of the fixing sleeve 5; a locking inner nut 27 matched with the thread of the threaded column 25 is arranged in the locking sleeve 26; the threaded column 25 is internally provided with a locking boss 16B.

In the actual use process, when the locking sleeve 26 is rotated to move downwards along the threaded column 25, the threaded column 25 is tightened inwards, so that the locking boss 16B inside the threaded column 25 is respectively clamped or pressed on the limiting groove or the limiting hole 3 or the surface on the side wall of the inner pipe rod group 1, or is respectively clamped or pressed on the limiting groove or the limiting hole 3 or the surface on the adjusting bar 9, so that the inner pipe rod group 1 is fixed in the outer pipe rod 13 and cannot move;

when the locking sleeve is rotated to move reversely, the thread column is restored by the elasticity of the thread column, the locking boss 16B inside the thread column is respectively separated from the limiting groove or the limiting hole 3 or the surface on the side wall of the inner tube rod group 1, or is respectively separated from the limiting groove or the limiting hole 3 or the surface on the adjusting strip 19, and the inner tube rod group 1 can move back and forth in the outer tube rod 13.

For more intact telescopic link regulation locking device, the shape of spacing recess 3 on interior tubular pole 2 include circular, "T" font, fall trapezoidal, different circular arc etc.. The limiting hole 3 comprises a circle, a square, a strip, a different circular arc and the like.

The shape of the limiting groove 3 of the adjusting strip 19 as described in the embodiment of fig. 9A and 9B includes but is not limited to: any one of circular, trapezoidal, irregular circular arc, square and triangular.

As shown in fig. 10A and 10B: the open bore slots 18 of the inner tube shaft 2 in this embodiment include, but are not limited to: any one of a circular shape, a "T" shape, an inverted trapezoid shape, and a heteromorphic arc shape.

Finally, it should be noted that: in this embodiment, the locking boss 16B is matched with the limiting groove or the limiting hole 3 of the inner pipe rod group 1 in shape; the locking boss 16B is matched with the shape of the opening hole groove 18 of the inner pipe rod 1 or the limiting groove 3 of the adjusting strip 19.

The technical principles of the present invention have been described above in connection with specific embodiments, which are intended to explain the principles of the present invention and should not be construed as limiting the scope of the present invention in any way. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive efforts, which shall fall within the scope of the present invention.