阅读说明：本技术 一种高灯杆 (High lamp post ) 是由 王平 黎辉 张�杰 吴述林 于 2021-07-14 设计创作，主要内容包括：一种高灯杆,包括：杆体、滑轮架、挂钩座、灯盘以及压紧机构。杆体呈锥形结构；滑轮架设有多组滑轮；挂钩座铰接于滑轮架,对应滑轮均设有挂钩座,挂钩座的侧壁开设有挂钩槽和脱钩槽,挂钩座的底板上对应脱钩槽的位置开设有缺口,挂钩座设有第一指示牌和第二指示牌；灯盘顶部对应挂钩座均设有挂钩。对应滑轮的下方均设有压紧机构,压紧机构包括矩形管和伸缩臂,伸缩臂前端设有滚轮与弧形齿盘,滚轮和弧形齿盘均与杆体接触；伸缩臂滑动设于矩形管,矩形管上方垂直于伸缩臂滑动设有吊耳,吊耳中段套设有第一弹簧；吊耳设有拉绳,拉绳绕过对应的滑轮。可防止灯盘下坠,避免灯盘悬挂时出现回弹,防止灯盘冲顶,具有较高的安全性,方便维护。(A high pole, comprising: the device comprises a rod body, a pulley yoke, a hook seat, a lamp panel and a pressing mechanism. The rod body is in a conical structure; the pulley yoke is provided with a plurality of groups of pulleys; the hook seat is hinged to the pulley yoke, hook seats are arranged corresponding to the pulleys, a hook groove and a unhooking groove are formed in the side wall of each hook seat, a notch is formed in the bottom plate of each hook seat at a position corresponding to the unhooking groove, and the hook seat is provided with a first indicator board and a second indicator board; the top of the lamp panel is provided with a hook corresponding to the hook seat. A pressing mechanism is arranged below the corresponding pulley and comprises a rectangular pipe and a telescopic arm, a roller and an arc-shaped fluted disc are arranged at the front end of the telescopic arm, and the roller and the arc-shaped fluted disc are both contacted with the rod body; the telescopic arm is arranged on the rectangular pipe in a sliding mode, a lifting lug is arranged above the rectangular pipe and perpendicular to the telescopic arm in a sliding mode, and a first spring is sleeved on the middle section of the lifting lug; the lifting lug is provided with a pull rope, and the pull rope bypasses the corresponding pulley. The lamp panel can be prevented from dropping, resilience is avoided when the lamp panel is hung, the lamp panel is prevented from being ejected, and the lamp panel has high safety and is convenient to maintain.)

1. A high light pole, comprising:

the rod body (10) is of a conical structure;

the pulley yoke (20) is arranged at the top of the rod body (10), a plurality of groups of pulleys (21) are uniformly arranged along the circumference, and the distances between the pulleys (21) and the axis of the rod body (10) are the same;

the top of the hook seat (30) is hinged to the bottom of the pulley frame (20), the hook seat (30) is arranged corresponding to each group of pulleys (21), the cross section of the hook seat (30) is of a groove structure, a hook groove (301) is formed in the lower section of one side wall, a unhooking groove (302) is formed in the middle section of the same side wall, a first guide inclined plane (3011) is arranged at the end part of the side wall, which is positioned at the lower section of the hook seat (30), a second guide inclined plane (3021) is formed in the part, which is positioned above the hook groove (301), of the side wall, the hook groove (301) and the unhooking groove (302) are inclined towards the upper part of the hook seat (30), a notch (303) is formed in the position, corresponding to the unhooking groove (302), on the bottom plate of the hook seat (30), a first indicating plate (31) is arranged below the hook groove (301) in a rotating mode, a second indicating plate (32) is rotatably arranged below the corresponding unhooking groove (302), and different colors are painted on the surfaces of the first indicating plate (31) and the second indicating plate (32) to serve as marks;

the lamp panel (40) is sleeved on the periphery of the rod body (10), the lamp panel (40) and the rod body (10) are arranged at intervals, hooks (41) are arranged on the top of the lamp panel (40) corresponding to the hook seats (30), a cross rod (411) is arranged on the upper section of each hook (41), and the cross rod (411) is located in the middle positions of the first guide inclined plane (3011) and the second guide inclined plane (3021) in the projection view of the hooks (41) towards the hook seats (30);

the pressing mechanism (50) is arranged on the lamp panel (40), the pressing mechanisms (50) are arranged below the corresponding pulleys (21), the pressing mechanism (50) comprises a rectangular pipe (51) and a telescopic arm (52), a roller (54) is arranged at the front end of the telescopic arm (52), the roller (54) is in rolling contact with the outer wall of the rod body (10) along the length direction of the rod body (10), an arc-shaped fluted disc (55) is arranged at the front end of the telescopic arm (52), and one side, with a tooth shape, of the arc-shaped fluted disc (55) is in contact with the outer wall of the rod body (10); the telescopic arm (52) is arranged in the rectangular tube (51) in a sliding mode along the axis direction, the sliding direction of the telescopic arm (52) is consistent with the normal direction of the rod body (10), the telescopic arm (52) slides along with the diameter change of the rod body (10), so that the roller (54) and the arc-shaped fluted disc (55) are kept in a state of being contacted with the rod body (10) constantly, a baffle (511) is arranged above the rectangular tube (51), a lifting lug (56) is arranged above the rectangular tube (51) in a sliding mode in the direction perpendicular to the telescopic arm (52), the lifting lug (56) penetrates through the baffle (511), and a first spring (57) is sleeved on the periphery of the middle section of the lifting lug (56); the first spring (57) is arranged below the baffle (511), the lifting lugs (56) are provided with pull ropes (58), the pull ropes (58) of each group of pressing mechanisms (50) are wound around the corresponding pulleys (21) and used for pulling up the lamp panel (40), when the lamp panel (40) is pulled up by the pull ropes (58), the first spring (57) is in a compressed state, and at the moment, a gap is reserved between the bottom of the lifting lug (56) and the top surface of the telescopic arm (52); when the pull rope (58) is broken, the lifting lug (56) presses the telescopic arm (52) under the elastic force of the first spring (57).

2. A high lamp post according to claim 1, characterized in that the top surface of the telescopic arm (52) is provided with a rack (53), the rack (53) is arranged along the sliding direction of the telescopic arm (52), the bottom of the lifting lug (56) is provided with a tooth-shaped block (561) for tooth-shaped engagement with the rack (53), when the lamp panel (40) is pulled by the pulling rope (58) to move upwards, a space is formed between the tooth-shaped block (561) and the rack (53), and when the pulling rope (58) is broken, the tooth-shaped block (561) engages with the rack (53).

3. A high light pole according to claim 1, characterized in that the axis of articulation of the hanger base (30) on the pulley yoke (20) and the axis of the cross bar (411) are aligned with the normal direction of the pole (10).

4. A high lamp post according to claim 1, characterized in that the cross section of the telescopic arm (52) is a rectangular structure, the rectangular tube (51) is provided with support wheels (59) corresponding to the periphery of the telescopic arm (52), and the telescopic arm (52) is supported by the support wheels (59).

5. A high light pole according to claim 1, characterized in that a pair of rollers (54) are coaxially provided, and an arc-shaped toothed disc (55) is provided between the pair of rollers (54).

6. A high light pole according to claim 1, characterized in that the telescopic arm (52) is provided with an adjusting screw (60) corresponding to the arc-shaped fluted disc (55) for adjusting the contact position and pressure of the arc-shaped fluted disc (55) and the pole body (10).

7. A high light pole according to claim 1, characterized in that the telescopic boom (52) has a cavity therein, a guide rod (61) is arranged in the cavity, the axis of the guide rod (61) is in accordance with the sliding direction of the telescopic boom (52), a second spring (62) is sleeved on the outer circumference of the guide rod (61), an end plate (512) is arranged on one side of the rectangular tube (51) located at the rear end of the telescopic boom (52), the guide rod (61) slides through the end plate (512), and the second spring (62) is located between the end plate (512) and the front end of the telescopic boom (52).

8. A high light pole according to claim 1, characterized in that the cross-section of the pole body (10) is a regular polygon, the number of sides of the polygon is an integer multiple of 2, and the number of the pulley (21) and the number of the pressing mechanism (50) are both an integer multiple of 2.

9. A high light pole according to claim 1, characterized in that the cross-section of the pole (10) is a regular polygon, the number of sides of the polygon is an integer multiple of 3, and at least three sets of pulleys (21) and hold-down mechanism (50) are provided.

Technical Field

The invention belongs to the technical field of lamp posts, and particularly relates to a high lamp post.

Background

The high lamp post is widely applied to illumination of road traffic, park squares and sport places. Different from common road lighting lamps, the lighting equipment adopting the high lamp post has the characteristics of high post body, wide lighting range, more hanging lamps and the like; and therefore also high lamp poles with the following technical problems and use risks. Firstly, the rod body of the high-altitude pole is long, and the lamp panel is required to be integrally lowered to the ground for installation, replacement and daily maintenance, so that the high-altitude lamp pole is generally provided with a lifting device for lifting the lamp panel, but the risk of falling of the lamp panel caused by breakage of a pull rope exists in the lifting process of the lamp panel; secondly, hook seats for hanging the lamp panel of the existing high lamp post are all fixedly arranged on a rod body, then hooks on the lamp panel are guided to enter the hook seats by utilizing a guide inclined plate, the lamp panel can only be pulled upwards along with the inclined surface of the guide inclined plate, and after the hooks of the lamp panel upwards cross the guide inclined plate, the rotation resilience exists, so that the lamp panel is subjected to larger impact and shake integrally, and potential safety hazards exist; thirdly, the pulling force and the pulling stroke height are not conveniently controlled by adopting an upward hard pulling mode, an operator judges whether the rising height of the lamp panel is in place or not by the impact and the shaking caused by the rotation and the rebounding of the hook after the hook passes over the guide inclined plate, and the upward pulling mode is similar to a blind operation mode, so that the lamp panel is easy to generate the top rushing, the lifting equipment and the lamp are damaged, even the high lamp post structure is damaged, and serious potential safety hazards exist; fourth, the couple seat that has now is not convenient for the couple to drop, the lamp panel that drops when influencing later maintenance.

Disclosure of Invention

In order to solve the technical problems, the invention provides the high lamp post, which can prevent the lamp panel from falling down when the pull rope is broken, can avoid the phenomenon of rotation and springback when the lamp panel is suspended, reduces the impact and vibration in the process of suspending the lamp panel, can prevent the phenomenon of top impact of the lamp panel, has higher safety, and is convenient for the hook to fall off and maintenance.

In order to realize the purpose of the invention, the following scheme is adopted:

a high light pole, comprising: the device comprises a rod body, a pulley yoke, a hook seat, a lamp panel and a pressing mechanism.

The rod body is in a conical structure;

the pulley is erected on the top of the rod body, a plurality of groups of pulleys are uniformly arranged along the circumference, and the distances between the pulleys and the axis of the rod body are the same;

the top of the hook seat is hinged with the bottom of the pulley yoke, a hook seat is arranged corresponding to each group of pulleys, and the section of the hook seat is of a groove structure. The lower section of one side wall of the hook seat is provided with a hook groove, the middle section of the same side wall is provided with a unhooking groove, the end part of the side wall, which is positioned at the lower section of the hook seat, is provided with a first guide inclined plane, and the part of the side wall, which is positioned above the hook groove, is provided with a second guide inclined plane for guiding. The hook groove and the unhooking groove are inclined towards the upper part of the hook seat, the inclination directions of the first guide inclined plane and the second guide inclined plane are consistent with the inclination directions of the hook groove and the unhooking groove, a notch is formed in the position, corresponding to the unhooking groove, on the bottom plate of the hook seat, a first indicator is rotatably arranged below the hook seat, corresponding to the hook groove, a second indicator is rotatably arranged below the unhooking groove, and different colors are painted on the surfaces of the first indicator and the second indicator to serve as marks;

the periphery of the rod body is located to the lamp panel cover, is the interval setting between lamp panel and the rod body, and the lamp panel top corresponds the couple seat and all is equipped with the couple, and the couple upper segment is equipped with the horizontal pole, and the horizontal pole is located the middle part position on first direction inclined plane and the second direction inclined plane on the projection view of couple seat towards the couple.

The pressing mechanism is arranged on the lamp panel, the pressing mechanisms are arranged below the corresponding pulleys and comprise rectangular pipes and telescopic arms, rollers are arranged at the front ends of the telescopic arms and are in rolling contact with the outer walls of the rod bodies along the length direction of the rod bodies, arc-shaped tooth discs are arranged at the front ends of the telescopic arms, and one sides of the arc-shaped tooth discs with tooth shapes are in contact with the outer walls of the rod bodies; the telescopic arm is arranged in the rectangular pipe in a sliding mode along the axis direction, the sliding direction of the telescopic arm is consistent with the normal direction of the rod body, the telescopic arm slides along with the change of the diameter of the rod body, so that the roller and the arc-shaped fluted disc are kept in a state of being contacted with the rod body constantly, a baffle plate is arranged above the rectangular pipe, a lifting lug is arranged above the rectangular pipe in a sliding mode in the direction perpendicular to the telescopic arm, the lifting lug penetrates through the baffle plate, and a first spring is sleeved on the periphery of the middle section of the lifting lug; the first spring is arranged below the baffle, the lifting lug is provided with a pull rope, the pull rope of each group of pressing mechanisms bypasses the corresponding pulley and is used for lifting the lamp panel, when the lamp panel is lifted by the pull rope, the first spring is in a compressed state, and at the moment, a space is formed between the bottom of the lifting lug and the top surface of the telescopic arm; when the pull rope is broken, the lifting lug presses the telescopic arm under the action of the elastic force of the first spring.

Furthermore, the top surface of the telescopic arm is provided with a rack, the rack is arranged along the sliding direction of the telescopic arm, the bottom of the lifting lug is provided with a tooth-shaped block matched with the tooth shape of the rack, when the lamp panel is pulled by the pull rope to move upwards, an interval is reserved between the tooth-shaped block and the rack, and when the pull rope is broken, the tooth-shaped block is matched with the rack.

Furthermore, the hinge axis of the hook seat on the pulley yoke and the axis of the cross rod are consistent with the normal direction of the rod body.

Furthermore, the cross-section of flexible arm is the rectangle structure, and the rectangular pipe corresponds all be equipped with the supporting wheel around flexible arm, utilizes the supporting wheel to support flexible arm.

Furthermore, a pair of rollers is coaxially arranged, and the arc-shaped fluted disc is arranged between the pair of rollers.

Furthermore, the telescopic arm is provided with an adjusting screw corresponding to the arc-shaped fluted disc and used for adjusting the contact position and pressure of the arc-shaped fluted disc and the rod body.

Furthermore, a cavity is formed in the telescopic arm, a guide rod is arranged in the cavity, the axis of the guide rod is consistent with the sliding direction of the telescopic arm, a second spring is sleeved on the periphery of the guide rod, an end plate is arranged on one side, located at the rear end of the telescopic arm, of the rectangular pipe, the guide rod penetrates through the end plate in a sliding mode, and the second spring is located between the end plate and the front end of the telescopic arm.

Further, the cross section of the rod body is a regular polygon, the number of the sides of the polygon is an integral multiple of 2, and the number of the pulleys and the number of the pressing mechanisms are integral multiples of 2.

Furthermore, the cross section of the rod body is a regular polygon, the number of the sides of the polygon is an integral multiple of 3, and at least three groups of pulleys and the pressing mechanism are arranged at the moment.

The invention has the beneficial effects that:

1. evenly be equipped with multiunit hold-down mechanism along the circumference of the body of rod on the lamp panel, hold-down mechanism is equipped with the arc fluted disc, the arc tooth removes along with the diameter change of the body of rod with flexible arm together, the arc fluted disc remains throughout and the contact of body of rod outer wall, the lug will push down flexible arm when the stay cord fracture and prevent flexible arm and arc fluted disc from removing, make the arc fluted disc paste on body of rod surface, cross-sectional diameter when the lamp panel gliding in-process body of rod progressively increases, pressure between arc fluted disc and the body of rod also progressively increases, pressure until between arc fluted disc and the body of rod is greater than the impulsive force when the lamp panel whereabouts, the lamp panel alright stop to continue the tenesmus, thereby play the mesh that can prevent the lamp panel tenesmus, the security when improving the installation.

2. The lamp panel utilizes the couple to remove to the couple seat at the spin-on in-process, thereby hang the couple inslot to the couple seat with the couple, the couple seat adopts articulated mode to connect in the pulley yoke, the couple is at the in-process that combines with the couple seat, couple and lamp panel remain vertical rebound throughout, under the guide effect on first direction inclined plane, the couple seat will swing round articulated axis, thereby replace the rotatory removal of lamp panel, with this rotatory resilience phenomenon of avoiding appearing after the lamp panel installation, thereby reduce the impact and the vibration of lamp panel suspension in-process, stability and security when improving the lamp panel installation.

3. The couple groove and the unhook groove that makes the couple break away from to hang fixed couple all are equipped with rotatable sign to scribble of two places signs has different colour signs, and operator's accessible visual observation couple and the relative position of couple seat avoid blindly drawing rope lamp panel, thereby prevent that the phenomenon of dashing the top from appearing in the lamp panel, all have higher security when making the installation of lamp panel and taking off.

4. Adopt when taking off the lamp panel with hang the same principle when, utilize the second direction inclined plane to lead to the couple, the lamp panel only need the rebound predetermined distance alright make the horizontal pole of couple get into the unhook inslot, then break away from the couple seat from the breach that the unhook groove corresponds, whole in-process lamp panel does not all have rotary motion, unhook process is steady reliable, convenient maintenance.

Drawings

The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.

FIG. 1 shows the overall construction of the present application;

FIG. 2 shows a partial enlarged view at A in FIG. 1;

fig. 3 shows the construction of one embodiment of the pulley yoke and the hanger bracket;

FIG. 4 shows a top view of the hold-down mechanism;

FIG. 5 shows a bottom view of the hold-down mechanism;

fig. 6 is a view showing an internal configuration of the pressing mechanism;

FIG. 7 is a schematic view showing the position of the hanger before it is attached to the hanger base;

FIG. 8 shows one of the schematic views of the process of coupling the hanger to the hanger holder;

FIG. 9 is a second schematic view showing the process of coupling the hook with the hook base;

FIG. 10 is a third schematic view showing the process of coupling the hook with the hook base;

FIG. 11 shows a schematic view of the hanger when attached to the hanger bracket;

FIG. 12 shows one of the schematic views of the process of disengaging the hook from the hook base;

FIG. 13 is a second schematic view showing the process of disengaging the hook from the hook base;

FIG. 14 shows a third schematic view of the process of disengaging the hook from the hook base;

fig. 15 shows a schematic view of the hook after it has been detached from the hook base.

The labels in the figure are: the device comprises a rod body-10, a pulley frame-20, a pulley-21, a hook seat-30, a hook groove-301, a first guide inclined plane-3011, a unhooking groove-302, a notch-303, a second guide inclined plane-3021, a notch-303, a first indicator-31, a second indicator-32, a lamp panel-40, a hook-41, a cross rod-411, a hold-down mechanism-50, a rectangular tube-51, a baffle-511, an end plate-512, a telescopic arm-52, a rack-53, a roller-54, an arc fluted disc-55, a lifting lug-56, a first spring-57, a pull rope-58, a support wheel-59, an adjusting screw rod-60, a guide rod-61 and a second spring-62.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the described embodiments of the present invention are a part of the embodiments of the present invention, not all of the embodiments of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only for convenience of describing the present invention and simplifying the description. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1

As shown in fig. 1 to 6, a high light pole includes: the device comprises a rod body 10, a pulley yoke 20, a hook seat 30, a lamp panel 40 and a pressing mechanism 50.

Specifically, the rod body 10 is a conical structure, and a conical rod can be adopted.

Specifically, the pulley yoke 20 is disposed on the top of the rod body 10, and a plurality of sets of pulleys 21 are uniformly disposed along the circumference, and the distances between the pulleys 21 and the axis of the rod body 10 are the same, so as to keep the balance of the lamp panel 40.

Specifically, the top of the hook seat 30 is hinged with the bottom of the pulley yoke 20, the hook seat 30 is arranged corresponding to each group of pulleys 21, the section of the hook seat 30 is of a groove structure, the lower section of one side wall is provided with a hook groove 301, the middle section of the same side wall is provided with a unhooking groove 302, the end part of the side wall, which is positioned at the lower section of the hook seat 30, is provided with a first guide inclined plane 3011, the part of the side wall, which is positioned above the hook groove 301, is provided with a second guide inclined plane 3021, the hook groove 301 and the unhooking groove 302 are both inclined towards the upper part of the hook seat 30, the inclination directions of the first guide inclined plane 3011 and the second guide inclined plane 3021 are consistent with the inclination directions of the hook groove 301 and the unhooking groove 302, the bottom plate of the hook seat 30 is provided with a notch 303 corresponding to the position of the unhooking groove 302, the hook seat 30 is provided with a first indicator 31 corresponding to the lower part of the hook groove 301 in a rotating way, a second indication board 32 is rotatably arranged below the corresponding unhooking groove 302, and different colors are painted on the surfaces of the first indication board 31 and the second indication board 32 to serve as marks.

Specifically, the lamp panel 40 is sleeved on the periphery of the rod body 10, the lamp panel 40 and the rod body 10 are arranged at intervals, the top of the lamp panel 40 is provided with a hook 41 corresponding to the hook base 30, the upper section of the hook 41 is provided with a cross rod 411, and the cross rod 411 is located in the middle of the first guide inclined plane 3011 and the second guide inclined plane 3021 in the projection view of the hook base 30 of the hook 41.

Specifically, the pressing mechanism 50 is disposed on the lamp panel 40, and the pressing mechanisms 50 are disposed below the corresponding pulleys 21. The pressing mechanism 50 comprises a rectangular pipe 51 and a telescopic arm 52, wherein a roller 54 is arranged at the front end of the telescopic arm 52, the roller 54 is in rolling contact with the outer wall of the rod 10 along the length direction of the rod 10, an arc-shaped toothed disc 55 is arranged at the front end of the telescopic arm 52, one side of the arc-shaped toothed disc 55 with a tooth shape is in contact with the outer wall of the rod 10, and the axial direction of the arc-shaped toothed disc 55 is perpendicular to the axial direction of the rod 10. The telescopic arm 52 is slidably disposed in the rectangular tube 51 along the axial direction, the sliding direction of the telescopic arm 52 is the same as the normal direction of the rod 10, and the telescopic arm 52 slides along with the change of the diameter of the rod 10, so that the roller 54 and the arc-shaped toothed disc 55 are constantly kept in contact with the rod 10.

A baffle 511 is arranged above the rectangular tube 51, a lifting lug 56 is arranged above the rectangular tube 51 in a sliding manner in a direction vertical to the telescopic arm 52, the lifting lug 56 penetrates through the baffle 511, and a first spring 57 is sleeved on the periphery of the middle section of the lifting lug 56; the first spring 57 is arranged below the baffle 511, the lifting lugs 56 are provided with pulling ropes 58, and the pulling ropes 58 of each group of pressing mechanisms 50 are wound around the corresponding pulleys 21 for pulling up the lamp panel 40. When the lamp panel 40 is pulled up by the pulling rope 58, the first spring 57 is compressed, and at this time, the bottom of the lifting lug 56 is spaced from the top surface of the telescopic arm 52, so that the telescopic arm 52 can slide. When the pulling rope 58 is broken, the lifting lug 56 loses the upward pulling force of the pulling rope 58, and moves towards the telescopic arm 52 under the action of the elastic force of the first spring 57, the telescopic arm 52 is pressed by the bottom of the lifting lug 56, and at the moment, the telescopic arm 52 cannot move continuously along the normal direction of the rod body 10. The lamp panel 40 will continue to descend for a certain distance, the diameter of the rod 10 will be larger as the telescopic arm 52 is pressed and fixed by the lifting lug 56, so that the arc-shaped gear 55 cannot continue to move, the pressure between the arc-shaped gear 55 and the side wall of the rod 10 will gradually increase, and when the pressure between the arc-shaped gear 55 and the side wall of the rod 10 is greater than the impulsive force generated by the descending of the lamp panel 40, the lamp panel 40 will stop descending, so as to prevent the lamp panel 40 from descending. The safety during the installation or removal of the lamp panel 40 is improved.

Preferably, as shown in fig. 6, a rack 53 is disposed on the top surface of the telescopic arm 52, the rack 53 is disposed along the sliding direction of the telescopic arm 52, a tooth-shaped block 561 for engaging with the rack 53 is disposed at the bottom of the lifting lug 56, when the lamp panel 40 is pulled by the pulling rope 58 to move upward, a space is provided between the tooth-shaped block 561 and the rack 53, and when the pulling rope 58 is broken, the tooth-shaped block 561 engages with the rack 53. Utilize the cooperation of profile of tooth 561 and rack 53 mechanical structure to realize compressing tightly flexible arm 52, can improve the stability when compressing tightly flexible arm 52, prevent that flexible arm 52 from sliding, improve steadiness and reliability when arc fluted disc 55 compresses tightly the body of rod 10.

Preferably, the hinge axis of the hanger base 30 on the pulley yoke 20 and the axis of the cross bar 411 are aligned with the normal direction of the rod body 10 as shown in fig. 1. The hanger base 30 swings towards the tangent of the rod body 10 in the process of connecting or disconnecting the hanger 41 with the hanger base 30. In another connection structure, the hinge axis of the hanger base 30 on the pulley yoke 20 and the axis of the cross bar 411 are perpendicular to the normal direction of the rod body 10. At this time, the hook base 30 will swing along the normal direction of the rod 10, and the hook groove 301 and the unhook groove 302 can be disposed towards the outside or the inside of the rod 10 along the normal direction.

Preferably, as shown in fig. 4 to 6, the cross section of the telescopic arm 52 is a rectangular structure, the rectangular tube 51 is provided with support wheels 59 around the telescopic arm 52, the telescopic arm 52 is supported by the support wheels 59, so that friction is reduced when the telescopic arm 52 slides, abrasion between the structures is reduced, the service life is prolonged, and the telescopic arm 52 slides more smoothly, so that the telescopic arm can slide according to the change of the diameter of the rod body 10, and the contact state of the roller 54 and the arc-shaped fluted disc 55 with the rod body 10 is constantly maintained.

Preferably, as shown in fig. 4, the rollers 54 are provided with a pair of rollers to increase the contact surface larger than the rod 10, so as to improve the stability of the lamp panel 40 moving along the rod 10, and the arc-shaped toothed disc 55 is provided between the pair of rollers 54 to improve the installation stability of the arc-shaped toothed disc 55, so as to prevent the arc-shaped toothed disc 55 from shaking when the lamp panel 40 falls down.

Preferably, as shown in fig. 5 and 6, the telescopic arm 52 is provided with an adjusting screw 60 corresponding to the arc-shaped toothed disc 55 for adjusting the contact position and pressure between the arc-shaped toothed disc 55 and the rod 10, and when the adjusting screw 60 is rotated, the arc-shaped toothed disc 55 rotates around the connection with the telescopic arm 52, so as to adjust the distance between a side of the tooth of the arc-shaped toothed disc 55 and the rod 10, and obtain a better contact position and a proper pressure between the side of the tooth of the arc-shaped toothed disc 55 and the rod 10.

Preferably, as shown in fig. 5 and 6, a cavity is formed inside the telescopic arm 52, a guide rod 61 is arranged in the cavity, an axis of the guide rod 61 is in accordance with a sliding direction of the telescopic arm 52, a second spring 62 is sleeved on the outer periphery of the guide rod 61, an end plate 512 is arranged on one side of the rectangular tube 51, which is located at the rear end of the telescopic arm 52, the guide rod 61 slides through the end plate 512, the second spring 62 is located between the end plate 512 and the front end of the telescopic arm 52, the telescopic arm 52 can slide along with the diameter change of the rod body 10 by using the elastic force provided by the second spring 62, so that the contact state of the roller 54 and the arc-shaped fluted disc 55 with the rod body 10 is constantly maintained, the stability of the telescopic arm 52 during sliding is improved by using the guide rod 61, and meanwhile, the second spring 62 is prevented from bending and deforming inside the telescopic arm 52, and the structural stability of the second spring 62 is improved.

Example 2

The cross section of the rod body 10 is a regular polygon, the number of sides of the polygon is an integral multiple of 2, and at this time, the number of the pulleys 21 and the pressing mechanisms 50 is an integral multiple of 2. When the rod 10 has a rectangular cross section, the pressing mechanism 50 may be provided in 2 sets, respectively corresponding to a pair of opposite sidewalls of the rod 10. The pressing mechanism 50 may also be provided in 4 sets, one set for each sidewall of the rod 10, to achieve higher stability.

Example 3

The cross section of the rod body 10 is a regular polygon, the number of the sides of the polygon is an integral multiple of 3, and at this time, at least three groups of the pulleys 21 and the pressing mechanism 50 are arranged. When the cross section of the rod 10 is triangular, the pressing mechanism 50 is provided with a group corresponding to three side walls of the rod 10. When the cross-section of the rod 10 is hexagonal, the pressing mechanism 50 may be disposed in a group corresponding to three side walls spaced apart from each other.

The specific implementation mode is as follows: one end of the pull rope 58 is connected with the lifting lug 56, then the pull rope 58 is wound around the pulley 21 and penetrates into the interior of the rod body 10 to be connected with the winch, and the pull rope 58 is pulled by the winch so as to realize the ascending or descending of the lamp panel 40.

When the lamp panel 40 is installed, the lamp panel 40 is pulled up by the pull rope 58 to the upper end of the rod body 10, the position relation before the hook 41 is connected with the hook seat 30 is shown in fig. 7, the cross rod 411 is positioned below the first guide inclined plane 3011, the lamp panel 40 continues to rise, the cross rod 411 starts to be contacted with the first guide inclined plane 3011, as shown in fig. 8 and 9, the hook seat 30 gradually inclines in the process that the cross rod 411 is contacted with the first guide inclined plane 3011, the cross rod 411 is contacted with the first indicator 31 in the process, and one surface of the first indicator 31 gradually faces downwards so as to be convenient to observe; as shown in fig. 10, when the cross bar 411 enters the hook slot 301 upwards, the first indicator 31 is in a downward vertical state again, at this time, the first indicator 31 cannot be observed, the operator can judge that the lamp panel 40 is lifted in place, and at this time, the cross bar 411 of the hook 41 enters the hook slot 301. As shown in fig. 11, the hanger base 30 is returned to the vertical state by gravity, and the lamp panel 40 is lowered to smoothly hang the cross bar 411 in the hanger groove 301.

When the lamp panel 40 is taken out, the lamp panel 40 is pulled upwards by the pull rope 58, the cross bar 411 moves upwards, the cross bar 411 gradually contacts with the second guide inclined plane 3021 in the process of moving upwards, as shown in fig. 12 and 13, the hook seat 30 gradually inclines, the cross bar 411 contacts with the second indicating board 32 in the process, one surface of the second indicating board 32 gradually faces downwards so as to be convenient for observation, after the cross bar 411 enters the unhooking groove 302 as shown in fig. 14, the second indicating board 32 is in the vertical state again, at the moment, the second indicating board 32 cannot be observed, and an operator can judge that the cross bar 411 enters the unhooking groove 302. The pull cord 58 lowers the light panel 40 so that the cross bar 411 passes through the disengagement slot 302 and disengages the hanger bracket 30 from the notch 303 as shown in fig. 15.

The foregoing is only a preferred embodiment of the present invention and is not intended to be exhaustive or to limit the invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention.