An overhanging wire clamp

Abstract

This invention relates to the field of power fittings technology, specifically to a suspension clamp, including a connector connected to a boom. A cavity is provided inside the boom, containing a striker and a spring. The striker is slidably connected to the boom, and the spring is compressed within the cavity above the striker. A stationary hook is fixedly mounted on the lower part of one side of the boom. The lower part of the striker extends downwards through the boom below the cavity into the stationary hook body. A locking structure for locking the striker is also provided, connected to the boom. A movable hook is located at the hook opening of the stationary hook. The middle part of the movable hook is hinged to the hook end of the stationary hook. The lower part of the movable hook extends towards the stationary hook side as a bent hook, and the upper part of the movable hook extends to the locking structure side to form a support arm for contacting and unlocking the locking structure. The hook opening of the stationary hook is in an open state, with no obstruction at the hook opening. The support arm forms a platform structure for placing cables, facilitating the cable's sliding into the stationary hook body, significantly reducing installation difficulty.

Description

Technical Field

[0001] This invention relates to the field of power fittings technology, specifically to a suspension clamp. Background Technology

[0002] Suspension clamps are hardware used to suspend conductors and ground wires onto suspension insulator strings or hardware strings.

[0003] The invention patent with application number CN202411214125.4—a high-strength suspension wire clamp—comprises a support member, a clamping member, and a hanging plate. The support member includes a connecting part, a hinge part, a hook-shaped part, and a fixed seat connected sequentially from top to bottom. The connecting part is connected to the hanging plate, the hinge part is hinged to the clamping member, and the hook-shaped part is used to support the wire. The clamping member includes a rotating seat, a clamping part, and a connecting seat connected sequentially from top to bottom. The rotating seat is hinged to the hinge part, and a fastening bolt passes between the fixed seat and the connecting seat. The fastening bolt is threaded with a fastening nut. Multiple anti-slip teeth are spaced apart on the inner side of the clamping part, and rubber strips are provided between the anti-slip teeth.

[0004] This patent combines the advantages of anti-slip teeth and rubber strips. On the one hand, the anti-slip teeth can press into the surface of the wire, increasing the contact area between the wire clamp and the wire to increase friction. On the other hand, the rubber strip has a high coefficient of friction and good anti-slip performance, which can further improve friction and make the wire subject to good clamping force.

[0005] The suspension clamp of this patent requires the following steps during actual installation: 1. Connect the mounting plate to the straight-line tower; 2. The electrician rotates the clamp to the top with his left hand to open the hook, and lifts the cable upward with his right hand until the cable is placed into the hook. Third, to prevent the cable from slipping, the worker needs to use their left hand to press the clamp onto the cable, and their right hand to use an electric wrench to connect the fastening bolt and the fastening nut to complete the clamping and fixing of the cable.

[0006] The installation of suspension clamps on straight-line towers requires workers to perform high-altitude operations, which inherently restrict worker movement. In the second step, the electrician needs to lift the cable with one hand and place it into the hook-shaped part; however, the patented clamping design occupies part of the opening in the hook-shaped part, making the operation even more difficult. In the third step, the worker operates the clamping part with one hand, which is not only inflexible and untimely but also lacks sufficient strength, easily causing the cable to slip and affecting installation efficiency. Summary of the Invention

[0007] To solve the above-mentioned technical problems, this invention provides a suspension cable clamp, which addresses the difficulty for power workers in inserting cables into the hook-shaped part. The technical solution adopted by this invention to solve the above-mentioned technical problems is as follows: A suspension clamp, comprising: Connectors; The boom is connected to the connector, and a cavity is opened inside the boom. The stationary hook is fixedly installed at the lower part of the boom. The batter bar is located inside the cavity and is slidably connected to the boom. The lower part of the batter bar extends downward through the boom on the lower side of the cavity into the body of the stationary hook. The spring is positioned in a compressed state within the cavity at the top of the striker. A locking structure for locking the strike bar, the locking structure being connected to the boom; The moving hook is connected to the end of the stationary hook by a hinge in the middle. The lower part of the moving hook extends to the stationary hook side as a curved hook, and the upper part of the moving hook extends to the locking structure side to form a support arm for touching and unlocking the locking structure.

[0008] Furthermore, the locking structure includes a lock hole that extends through the boom, and a locking tongue is slidably disposed within the lock hole; The batter bar is equipped with a limit structure. In the locked state, the limit structure and the locking tongue lock together to prevent the batter bar from moving downward.

[0009] Furthermore: the strike bar includes a slider that is slidably connected to the boom, and a pressure bar is connected to the lower part of the slider, the pressure bar extending into the body of the stationary hook; The limiting structure is provided on the perimeter wall of the slider's side facade or on the outside of the pressure bar at the bottom of the slider.

[0010] Furthermore, the locking tongue has a through hole for the slider to pass through.

[0011] Furthermore, the locking tongue does not protrude from the side wall of the boom; The side wall of the support arm is provided with protrusions for touching the locking tongue.

[0012] Furthermore, a chamfered structure is provided around the lock hole on the side of the boom near the moving hook.

[0013] Furthermore, a pressure block is provided on the lower end face of the ground pressure bar, and an arc-shaped concave surface is provided on the lower end face of the pressure block.

[0014] The beneficial effects of this invention are as follows: The moving hook is set at the end of the stationary hook. Under its own weight, the moving hook is in a relatively open state, which does not obstruct the opening of the stationary hook. The upper arm of the moving hook forms a platform structure to place the cable, which makes it easier for the cable to slide into the body of the stationary hook, significantly reducing the installation difficulty.

[0015] Furthermore, when the cable slides into the body of the stationary hook, the driving hook rotates around the hinge point with the stationary hook. This not only closes the body of the stationary hook but also allows the support arm to unlock by touching the locking structure. Consequently, the batter bar slides down quickly under the elastic force of the spring, pressing the cable against the bottom of the stationary hook body to prevent the cable from slipping. The entire process is convenient and does not require complicated one-handed tightening actions, improving installation efficiency and safety, and is especially suitable for high-altitude work environments. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the moving hook in a relatively open state under its own gravity, according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the cross-sectional structure of the boom and stationary hook of the present invention; Figure 3 This is a schematic diagram of the main structure of the moving hook according to an embodiment of the present invention; Figure 4 This is a schematic cross-sectional view of the boom of the present invention at the lock hole; Figure 5 This is a cross-sectional view of the limiting structure of the present invention, which is located on the peripheral wall of the slider side facade, and the moving hook is in a relatively open state under its own weight. Figure 6 This is a cross-sectional view of the limiting structure of the present invention, which is located on the outside of the pressure rod at the bottom of the slider, and the moving hook is in a relatively open state under its own gravity. Figure 7 This is a cross-sectional structural diagram of the present invention with the locking tongue locking the slider; Figure 8 This is a top view of the lock hole after the locking tongue of the present invention has released the locking rod; Figure 9 This is a cross-sectional structural diagram of the impact rod pressing on the cable after the locking tongue of the present invention releases the locking of the impact rod; Figure 10 This is a three-dimensional structural diagram of the first embodiment of the present invention in its working state; Figure 11 This is a cross-sectional structural diagram of the moving hook in a relatively open state under its own gravity, according to Embodiment 2 of the present invention. Figure 12 This is a cross-sectional structural diagram of the second embodiment of the present invention in its working state; Figure 13 This is a cross-sectional structural diagram of one of the designs of the present invention in a non-operating state, according to Embodiment 3 of the present invention; Figure 14 This is a cross-sectional structural diagram of one of the design working states of Embodiment 3 of the present invention; Figure 15This is a schematic diagram of the three-dimensional structure of the impact rod and pressure block in Embodiment 3 of the present invention; Figure 16 This is a cross-sectional structural diagram of another design working state of Embodiment 3 of the present invention; Figure 17 This is a cross-sectional structural diagram of another design working state of Embodiment 3 of the present invention; In the picture: 1. Boom, 2. Cavity, 3. Connector, 31. Hanger, 32. Ball head, 33. Rod, 4. Stationary hook, 5. Impact rod, 51. Slider, 52. Pressure rod, 6. Locking structure, 61. Lock hole, 62. Lock tongue, 7. Moving hook, 71. Bent hook, 72. Support arm, 8. Limiting structure, 9. Through hole, 10. Protrusion, 11. Chamfered structure, 12. Pressure block, 13. Limiting block, 14. Inclined groove, 15. Tightening bolt, 16. Spherical structure, 17. Hexagonal head, 18. Guide support rod, 19. Arc-shaped support plate. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will now be described in further detail with reference to the accompanying drawings and the following embodiments, so that the public can better understand the implementation method of this invention. The specific implementation scheme of this invention is as follows: Example 1: A suspension cable clamp includes a connector 3 connected to a boom 1. A cavity 2 is provided inside the boom 1, and a striker 5 and a spring are disposed within the cavity 2. The striker 5 is slidably connected to the boom 1, and the spring is compressed and disposed within the cavity 2 above the striker 5. A stationary hook 4 is fixedly disposed on the lower side of one side of the boom 1. The lower part of the striker 5 extends downward through the boom 1 below the cavity 2 into the hook body of the stationary hook 4 to press the cable against the bottom of the hook body. A locking structure 6 for locking the striker 5 is also provided, connected to the boom 1, and the hook opening of the stationary hook 4 is... A movable hook 7 is provided, with its middle part connected to the hook end of the stationary hook 4 by a hinge. The lower part of the movable hook 7 extends towards the stationary hook 4 as a bent hook 71, and the upper part of the movable hook 7 extends to the locking structure 6 to form a support arm 72 for touching and unlocking the locking structure 6. When the suspended line is in the hanging state, the support arm 72 rotates away from the boom 1 under its own weight, and the hook opening of the stationary hook 4 is in the open state, with no obstruction at the hook opening of the stationary hook 4. The support arm 72 forms a platform structure for placing the cable, which facilitates the cable to slide into the hook body of the stationary hook 4, significantly reducing the installation difficulty.

[0018] Specifically, the locking structure 6 includes a lock hole 61 that passes through the boom 1, and a locking tongue 62 is slidably disposed in the lock hole 61; the batter 5 is provided with a limit structure 8. In the locked state, the limit structure 8 and the locking tongue 62 lock together to prevent the batter 5 from moving downward, thus completing the locking of the batter 5.

[0019] It should be noted that the striking rod 5 includes a slider 51 that is slidably connected to the boom 1 within the cavity 2. A pressure rod 52 is connected to the lower part of the slider 51, extending to the hook body of the stationary hook 4, and is capable of pressing the cable against the bottom of the stationary hook 4. For example... Figure 5 As shown, the limiting structure 8 is a peripheral wall formed on the side facade of the slider 51, or it can be as follows: Figure 6 The pressure bar 52, located on the outside of the lower part of the slider 51, is stepped, which allows the locking tongue 62 to lock the slider 51 and prevent it from falling.

[0020] It should be noted that the locking tongue 62 has a through hole 9 for the slider 51 to pass through. Under the spring force, the locking tongue 62 and the unfolded spring can pass through the through hole 9 to move the batter 5 downward, thereby pressing the cable against the bottom of the hook 71 to prevent the cable from coming loose and slipping.

[0021] To prevent accidental unlocking of the locking structure 6, the locking tongue 62 near the support arm 72 does not protrude from the side wall of the boom 1. The side wall of the support arm 72 is provided with a protrusion 10 for touching the locking tongue 62. The protrusion 19 has the following two functions: first, it can collide with the locking tongue 62 to complete the unlocking work; second, it can limit the cable placed at the support arm 72 to prevent the cable from slipping outward when the worker returns the cable.

[0022] It should be explained that, due to the downward pressure exerted by the spring on the strike bar 5 and the friction between the latch 62 and the strike bar 5, even when the latch 19 is not in the locked state, it cannot be unlocked by slightly touching the latch 62.

[0023] A chamfered structure 11 is provided around the lock hole 61 on the side of the boom 1 near the moving hook 7, which can prevent the protrusion 19 from getting stuck on the edge of the lock hole 61 during the rotation unlocking process, and ensure the smooth unlocking of the locking structure.

[0024] A pressure block 12 is provided on the lower end face of the pressure rod 52. The lower end face of the pressure block 12 is provided with an arc-shaped concave surface. This arc-shaped concave surface can better fit the outer circumference of the cable, increase the contact area with the cable, and improve the stability of the pressure. A rubber anti-slip pad is fixedly installed on the arc-shaped concave surface at the bottom of the pressure block 12. Rubber anti-slip pads can also be fixedly installed on the inner side of the static hook 4 and the bend hook 71 to increase the friction with the cable.

[0025] like Figure 3 The hooks 71 shown are symmetrically arranged on both sides of the lower part of the support arm 72, and the hinge point of the moving hook 7 and the stationary hook 4 is located on the upper part of the hook 71 near the support arm 72. The hook 71 is hinged to the stationary hook 4 through a shaft. When the suspension clamp is in the hanging state, the moving hook 7 is in a relatively open state under its own weight. The angle between the support arm 72 and the horizontal plane is A, and A is at least 0°. The inner side of the support arm 72 can abut against the outer side of the hook end of the stationary hook 4, which plays a limiting role.

[0026] It should be noted that the weight of the cable itself will drive the moving hook 7 to rotate around the hinge point with the stationary hook 4, as... Figure 9 As shown, when the outrigger 72 touches the side of the boom 1, the bottom of the hook 71 is higher than the bottom of the stationary hook 4. The cable continuously transmits the pressure of the impact rod 5 to the hook 71. Combined with the weight of the cable itself, this ensures that the outrigger 72 remains close to the side of the boom 1, thus sealing the stationary hook 4 and preventing the cable from slipping out of the hook body, thereby improving safety. It should be noted that the distance between the bottom of the stationary hook 4 and the bottom of the hook 71 is 0-5mm. In this embodiment, it is 3mm. In other embodiments, it can also be 0mm, 1mm, 2mm, 4mm, or 5mm. This ensures that the outrigger 72 remains close to the side of the boom 1 while avoiding excessive bending of the cable due to the large height difference between the two sides, keeping the cable bending within a reasonable range.

[0027] In this embodiment, the connector 3 can be the hanging plate structure in the prior art patent, and the hanging plate is fixedly connected to the boom 1.

[0028] In one embodiment, such as Figure 3 As shown, in order to provide smooth support for the cable, an arc-shaped support plate 19 is provided on the outside of the hook 71.

[0029] The working principle and process of Example 1 are as follows: First, connect the hanging plate to the straight-line tower at the predetermined position. At this time, the state of the suspension clamp is as follows: Figure 1 , Figure 4 As shown, the electrician then supports the suspension clamp with his left hand and lifts the cable upwards with his right hand, placing it on the support arm 72 inside the protrusion 10. He then pushes the cable towards the hook 71. As the cable slides, its own weight drives the cable 71 to rotate around the hinge point with the stationary hook 4. The hook 71 gradually moves closer to the hook body of the stationary hook 4, while the support arm 72 swings towards the boom 1. When the protrusion 10 collides with and pushes the latch 62, the latch 62, which was originally locked to the upper limit structure 8 of the strike bar 5, overcomes friction and slides within the lock hole 61. Figure 7 State transition Figure 9 This releases the locking of the collision rod 5.

[0030] Then, the spring, which was originally in a compressed state, will quickly release its elastic potential energy, pushing the impact rod 5 to slide downward in the cavity 2. The pressure rod 52, along with the pressure block 12, will move downward until the arc-shaped concave surface of the pressure block 12 presses against the upper surface of the cable and presses the cable against the bottom of the hook body of the stationary hook 4.

[0031] At the same time, under the pressure of the cable, the boom 72 will lock onto the side wall of the boom 1 to seal the opening of the hook body of the stationary hook 4, forming a surrounding seal for the cable, effectively preventing the cable from slipping out of the stationary hook 4.

[0032] Throughout the process, power workers only need to support the suspension clamps and place the cable on the support arm 72 and gently push it to slide, which simplifies the high-altitude operation steps and improves installation efficiency and operational safety.

[0033] Example 2: Although Example 1 simplifies the installation steps and improves installation efficiency and operational safety, due to different cable diameters, when the cable diameter is small, the pressure block 12 may not be able to fully compress the cable. In particular, when the cable is longer on one side and shorter on the other, it is easy for it to slide towards the longer side, posing a safety hazard of sliding out and falling to the ground.

[0034] To solve the above technical problems, this embodiment sets the connector of Embodiment 1 to include a hanger 31, a ball head 32 and a rod 33. The upper end face of the rod 33 is provided with a ball socket, which houses the ball head 32 in a relatively rotating state. The ball head 32 is connected to the hanger 31 by a fixed method. This cooperation between the ball head 32 and the ball socket allows the boom 1 to rotate freely within a certain range, thereby adapting to the cable suspension requirements at different angles and reducing the additional stress on the cable caused by angle deviation.

[0035] Furthermore, the lower part of the rod 33 extends into the cavity 2 and is threadedly connected to the boom 1. The rod 33 includes a rod body, which is threadedly connected to the boom 1, and the lower part of the rod body extends into the cavity 2 and is connected to a limit block 13. A spring is disposed in the cavity 2 between the limit block 13 and the pressure rod 52. By rotating the rod 33, the limit block 13 is driven to move downward, thereby adjusting the distance between the limit block 13 and the slider 51, and thus adjusting the degree of spring compression. For example, when the cable diameter is small, rotating the rod 33 can move the limit block 13 downward, increasing the spring compression, thereby increasing the pressure of the impact rod 5 on the cable, ensuring that the pressure block 12 can fully compress the cable and prevent it from loosening.

[0036] In addition, a hexagonal head 17 is fixedly installed on the outside of the ball socket, which makes it easy to rotate and adjust using tools such as open-end wrenches, making the operation simple and convenient.

[0037] It should be noted that a guide support rod 18 is fixedly installed at the lower part of the limiting block 13. The guide support rod 18 is sleeved inside the spring, which not only guides the spring but also prevents damage caused by excessive compression. The spring can be a rectangular spring capable of high-speed compression and heavy loads.

[0038] The beneficial effects of Example 2 are as follows: Through this adjustable spring pressure structure, the clamping force of the impact rod 5 on the cable can be flexibly adjusted according to the cable diameter during cable hanging installation, so that even small diameter cables can be fully fixed, further improving the stability and safety of the suspension clamp under different working conditions.

[0039] Meanwhile, the combination of the ball head and the socket gives the boom a certain degree of rotational freedom, which can better adapt to the suspension angle of the cable, reduce stress concentration caused by angular deviation, and extend the service life of the cable.

[0040] The working principle and process of Example 2 are as follows: Hanger 31 is suspended on a straight-line tower. When it is necessary to increase the spring compression to accommodate smaller diameter cables, the electrician can use an open-end wrench to hold the hexagonal head 17 and rotate the rod 33. Since the rod 33 is threadedly connected to the boom 1, the rotation of the rod 33 will cause the limiting block 13 to move downward along the cavity 2. The downward movement of the limiting block 13 shortens the distance between it and the slider 51, further compressing the spring between them and increasing the elastic potential energy of the spring.

[0041] Example 3: According to the current national standard GB / T 2314-2008 "General Technical Conditions for Power Fittings," the gripping force of a suspension clamp is defined as the maximum load value that prevents the conductor from slipping while fixed in the clamp or splice. The ratio of the gripping force of a fixed suspension clamp on the conductor or ground wire to the calculated breaking force of the conductor or ground wire should meet the requirements. In Examples 1 and 2, after the suspension clamp is installed, the gripping force specified in the standard cannot be met using springs of existing dimensions alone.

[0042] To address the insufficient cable gripping force after installation of the suspension clamp in Embodiment 1 or Embodiment 2, an inclined groove 14 is provided in the impact rod 5; the stationary hook 4 is threadedly connected to a tightening bolt 15, the rod of the tightening bolt 15 extending through the stationary hook 4 into the inclined groove 14, such as... Figure 13 or Figure 16 As shown, firstly, the tightening bolt 15 can limit the movement of the impact rod 5, ensuring that it does not rotate when it moves the pressure block 12 up and down; secondly, through the sliding cooperation between the tightening bolt 15 and the inclined slide 14, since the inclined slide 14 is inclined, when the tightening bolt 15 moves inward, it will generate a component force on the impact rod 5 in the direction of the static hook 4, driving the impact rod 5 together with the pressure block 12 to further press in the direction of the cable, thereby significantly increasing the positive pressure of the pressure block 12 on the cable, and thus improving the gripping force of the suspension clamp on the cable.

[0043] In addition, the rod of the tightening bolt 15 is provided with a spherical structure 16. The design of the spherical structure 16 can effectively reduce the frictional resistance between the tightening bolt 15 and the inclined slide 14, ensuring the smoothness of the downward movement of the impact rod 5.

[0044] The beneficial effects of Example 3 are as follows: By cooperating with the tightening bolt 15 and the inclined slide 14, pressure is generated in the direction of the static hook during the downward pressing of the cable by the strike rod 5, which significantly improves the gripping force of the suspension clamp on the cable, so that it can meet the gripping force requirements in GB / T 2314-2008 "General Technical Conditions for Power Fittings".

[0045] The working principle and process of Example 3 are as follows: Once the cable locking is complete, such as 14 or Figure 16 As shown, at this time, the slider 51 still has a certain amount of room to move from the lower wall of the cavity 2. Then, the tightening bolt 15 is rotated using an electric wrench. Due to the threaded connection between the tightening bolt 15 and the boom 1, the tightening bolt 15 moves towards the inclined slide 14. The spherical structure 16 slides along the inner wall of the inclined slide 14. Due to the inclined angle design of the inclined slide 14, the horizontal movement of the tightening bolt 15 will generate an oblique thrust on the inner wall of the inclined slide 14 through the spherical structure 16. This thrust is decomposed into a downward component, which drives the pressure block 12 through the impact rod 5 to further tighten the cable. This not only increases the vertical pressure on the cable, but also effectively improves the gripping force of the suspension clamp on the cable, enabling it to meet the gripping force requirements in the national standard.

[0046] Once the top bolt 15 is adjusted to the correct position, its cooperation with the inclined slide 14 can also form a stable limit on the impact rod 5, preventing it from loosening or shifting during subsequent use and ensuring the long-term stability of the grip force.

[0047] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "left," "right," "front," "rear," "lower left," "upper right," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Although the invention has been described according to a limited number of embodiments, those skilled in the art should understand from the above description that other embodiments are conceived within the scope of the invention described herein.

Claims

1. A pendant hanger, characterized in that, include: Connector (3); The boom (1) is connected to the connector (3), and a cavity (2) is provided inside the boom (1). The static hook (4) is fixedly installed at the lower part of the boom (1); The batter (5) is located in the cavity (2) and is connected to the boom (1) in a sliding manner. The lower part of the batter (5) passes through the boom (1) on the lower side of the cavity (12) and extends downward to the hook body of the static hook (4). A spring is provided in a compressed state in the cavity (2) at the top of the striker (5); A locking structure (6) for locking the strike bar (5) is connected to the boom (1); The moving hook (7) is connected to the hook end of the stationary hook (4) in a hinged manner. The lower part of the moving hook (7) extends to the side of the stationary hook (4) as a bent hook (71), and the upper part of the moving hook (7) extends to the side of the locking structure (6) to form a support arm (72) for touching and unlocking the locking structure (6).

2. A pendant hanger according to claim 1, wherein: The locking structure (6) includes a lock hole (61) that passes through the boom (1), and a lock tongue (62) is slidably provided in the lock hole (61). The batter (5) is provided with a limit structure (8). In the locked state, the limit structure (8) and the locking tongue (62) lock together to prevent the batter (5) from moving downward.

3. A pendant hanger according to claim 2, wherein: The strike bar (5) includes a slider (51) that is slidably connected to the boom (1). A pressure bar (52) is connected to the lower part of the slider (51) and extends into the body of the static hook (4). The limiting structure (8) is provided on the periphery of the side face of the slider (51) or on the outside of the pressure bar (52) at the bottom of the slider (51).

4. A pendant hanger according to claim 3, wherein: The latch (62) has a through hole (9) for the slider (51) to pass through.

5. A pendant hanger according to claim 3, wherein: The locking tongue (62) does not protrude from the side wall of the boom (1); The side wall of the support arm (72) is provided with a protrusion (10) for touching the latch (62).

6. A pendant hanger according to claim 5, wherein: The boom (1) has a chamfered structure (11) around the lock hole (61) on the side near the moving hook (7).

7. A pendant hanger according to claim 3, wherein: A pressure block (12) is provided on the lower end face of the pressure rod (52), and an arc-shaped concave surface is provided on the lower end face of the pressure block (12).

Images