Handheld anti-falling hanging point device

Abstract

The utility model discloses a handheld anti-falling hanging point device which comprises a polygonal plate, a U-shaped hook is arranged on the upper side of the polygonal plate, a plunger latch is rotatably arranged on the polygonal plate through a pin shaft, tension springs are connected to the two sides of the plunger latch respectively, and one end of each tension spring is fixed to the polygonal plate. A locking shaft is telescopically arranged on the polygonal plate, and a lock hole matched with the locking shaft is formed in the lower end of the plunger latch; a wrench is rotatably arranged on the polygonal plate through a pin shaft, and the wrench is in transmission fit with the locking shaft and used for driving the locking shaft to move. According to the handheld anti-falling hanging point device, the problems that when existing double-hook equipment climbs an electric iron tower, the physical power consumption of personnel is large, and the working efficiency is low are solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of electric climbing tools, specifically relating to a handheld anti-fall attachment device. Background Technology

[0002] Transmission lines, as a crucial component of the power system, bear the critical responsibility of transmitting electrical energy. With the rapid growth of electricity demand and the continuous expansion of the power grid, the safe and stable operation of transmission lines has become paramount in ensuring power supply. To achieve this goal, the inspection and maintenance of transmission lines are particularly important, with climbing power towers for inspection being a key aspect of daily operation and maintenance. Currently, power grid personnel manually climb power towers for daily maintenance, using a commonly used safety device: a double-hook system. Climbers repeatedly lock and unlock the hooks. During the climb, workers alternately load and unload the hooks, needing to bend over and unload them after climbing a certain distance. This frequent bending severely depletes the workers' physical strength, affecting climbing and work efficiency. When using traditional double-hook systems, workers repeatedly apply force with their thumbs and the web of their hands. Affected by fatigue and environmental factors, the success rate of locking / unlocking the hooks on the first attempt is unstable, especially after prolonged climbing, requiring two or even three attempts. While lacking effective protection for their own safety, workers also need to carry a large number of tools, workpieces and other items to work on the tower, which puts a heavy burden on them. Utility Model Content

[0003] This utility model provides a handheld anti-fall attachment device, which solves the problems of high physical exertion and low work efficiency of existing double-hook equipment for climbing power towers.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a handheld anti-fall attachment device, comprising a polygonal plate, a U-shaped hook on the upper side of the polygonal plate, a latch rotatably mounted on the polygonal plate via a pin, tension springs connected to both sides of the latch, one end of the tension springs being fixed to the polygonal plate; a locking shaft retractably mounted on the polygonal plate, a locking hole matching the locking shaft being provided at the lower end of the latch; and a wrench rotatably mounted on the polygonal plate via a pin, the wrench engaging with the locking shaft to drive the locking shaft to move.

[0005] The technical solution of this utility model also has the following characteristics:

[0006] A spring baffle and a guide sleeve are respectively set on the polygonal plate by a pair of pins. The spring baffle has a round hole, the tail of the locking shaft extends into the round hole, and the head of the locking shaft extends out from the guide sleeve.

[0007] A collar is provided on the locking shaft, and a spring is sleeved on the locking shaft. The spring is located between the spring baffle and the collar.

[0008] The locking shaft is mounted inside the guide sleeve via a linear bearing.

[0009] The wrench includes a first handle, a connecting shaft at the upper end of the first handle, and a fork on the connecting shaft, with an angle between the fork and the first handle.

[0010] Pull rings are provided on both sides of the latch, and one end of the tension spring is connected to the corresponding pull ring.

[0011] A second handle is provided on the lower side of the polygonal plate.

[0012] A protective plate is provided between the lower side of the polygonal plate and the second handle.

[0013] The beneficial effects of this utility model are:

[0014] (1) The handheld anti-fall attachment device of this utility model realizes system control through a purely mechanical structure. With the stable physical connection and precise mechanical transmission between mechanical parts, it greatly reduces the operational risks caused by electrical faults or software anomalies and significantly improves the system reliability and safety redundancy.

[0015] (2) The handheld anti-fall hanging point device of this utility model has an innovative design that effectively optimizes the operation process, freeing operators from the high-intensity operation mode of repeatedly applying force with both hands, reducing frequent bending and squatting movements, greatly reducing the physical consumption of operators, and reducing labor intensity.

[0016] (3) The handheld anti-fall hanging point device of this utility model is highly compatible with the traditional double hook device in terms of operation mode, fully meets the tower climbing operation habits formed by operators over a long period of time, greatly reduces operation training costs and application resistance, and lays a solid foundation for its widespread promotion in related fields. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a handheld anti-fall attachment device according to the present invention;

[0018] Figure 2 This is a schematic diagram illustrating the working state of a handheld anti-fall attachment device according to this utility model.

[0019] Figure 3 This is a schematic diagram of the installation of the locking shaft of a handheld anti-fall point device according to the present invention.

[0020] Figure 4 This is a schematic diagram of the wrench in a handheld anti-fall hanging point device of this utility model;

[0021] Figure 5This is a schematic diagram of the latch structure in a handheld anti-fall hanging point device of this utility model.

[0022] In the diagram: 1. Polygonal plate, 2. Pin, 3. U-shaped hook, 4. Latch, 5. Tension spring, 6. Locking shaft, 7. Lock hole, 8. Protective plate, 9. Second handle, 10. Wrench, 101. First handle, 102. Connecting shaft, 103. Fork head, 11. Spring baffle, 12. Linear bearing, 13. Guide sleeve, 14. Collar, 15. Round hole, 16. Pull ring, 17. Lock hole. Detailed Implementation

[0023] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] like Figure 1 As shown, this utility model discloses a handheld fall arrestor device, comprising a polygonal plate 1, a U-shaped hook 3 on the upper side of the polygonal plate 1, a latch 4 rotatably mounted on the polygonal plate 1 via a pin 2, tension springs 5 ​​connected to both sides of the latch 4, one end of each tension spring fixed to the polygonal plate 1; a locking shaft 6 telescopically mounted on the polygonal plate 1, and a locking hole 17 matching the locking shaft 6 at the lower end of the latch 4; a wrench 10 rotatably mounted on the polygonal plate 1 via a pin 2, the wrench 10 engaging with the locking shaft 6 to drive its movement. A second handle 9 is located on the lower side of the polygonal plate 1, and a protective plate 8 is positioned between the lower side of the polygonal plate 1 and the second handle 9.

[0026] like Figure 2 As shown, before climbing, the worker wears a five-point safety suit and secures one end of the safety rope to the protective plate 8 of the polygonal plate 1. The worker raises the device upwards and firmly grips the second handle 9 with both hands. After pressing the wrench 10, the worker swings the entire device downwards towards the angle steel of the tower. When the latch 4 contacts the angle steel, it reaches the desired position. Figure 2 State 1; The latch 4 is pressed into contact by the angle steel. Under the combined action of the operator's force and the weight of the device, the latch 4 overcomes the tension of the tension spring 5 and opens inward. The angle steel enters the interior of the latch 2 and the U-shaped hook 3, as shown. Figure 2 State 2; After the latch 4 disengages from the angle steel, the operator releases the wrench 10, allowing the locking shaft 6 to reset and engage in the locking hole 17 at the lower end of the latch 4. The end of the latch 4 cannot move, while the front end of the latch 4 is located in the groove below the U-shaped hook 3, making tight contact with the inner surface of the U-shaped hook 3, thus locking the device to the angle steel. Figure 2 State 3.

[0027] After the device is locked, the operator begins to climb upwards. Upon reaching the top of the device, the device is rotated 180° under the pull of the safety rope. At this point, the angle steel contacts the inner surface of the latch 4, reaching its maximum position. Figure 2 State 4; The operator grabs the device with both hands along the safety rope and firmly grips the second handle 9. After pressing the wrench 10, the device is lowered and pushed down. At this time, the locking shaft 6 extends, the end of the latch 4 is unlocked, the angle steel presses against the inside of the latch 4, and the front end of the latch 4 slides through the groove under the U-shaped hook 3 to reach the outside, achieving... Figure 2 State 5; After passing through state 5, under the force applied by the operator and the weight of the device itself, it slides outward from inside the U-shaped hook 3 until it is completely separated from the U-shaped hook 3, thus achieving... Figure 2 Status 6, and the device is unlocked.

[0028] During the climb, workers need to carry a set of two fall arrestor attachment points. After climbing a certain distance, they need to lock the attachment point to the higher angle iron while simultaneously unlocking the attachment point to the lower angle iron. This alternating action ensures that the worker is protected by at least one attachment point at all times.

[0029] Therefore, the handheld anti-fall anchor device of this utility model can use a mechanical structure to lock the angle steel of the power transmission tower. Relying on the weight of the device itself, it can quickly deploy safety protection anchor points, which have a certain degree of fall protection and climbing assistance functions. At the same time, it meets the characteristics of being compact, small in size and light in weight, and can adapt to most power tower angle steel specifications, ultimately achieving the function of preventing falls.

[0030] Example 2

[0031] like Figure 1 As shown in Embodiment 1, Embodiment 2, a handheld anti-fall attachment device of this utility model, also includes a polygonal plate 1. A U-shaped hook 3 is provided on the upper side of the polygonal plate 1. A latch 4 is rotatably provided on the polygonal plate 1 via a pin 2. Tension springs 5 ​​are connected to both sides of the latch 4, and one end of the tension spring 5 is fixed to the polygonal plate 1. A locking shaft 6 is telescopically provided on the polygonal plate 1. A locking hole 17 matching the locking shaft 6 is provided at the lower end of the latch 4. A wrench 10 is rotatably provided on the polygonal plate 1 via a pin 2. The wrench 10 is in transmission cooperation with the locking shaft 6 and is used to drive the locking shaft 6 to move. A second handle 9 is provided on the lower side of the polygonal plate 1. A protective plate 8 is provided between the lower side of the polygonal plate 1 and the second handle 9.

[0032] Combination Figure 3Unlike Embodiment 1, in Embodiment 2, a handheld anti-fall hanging point device of this utility model is provided on a polygonal plate 1 by a pair of pins 2, with a spring baffle 11 and a guide sleeve 13 respectively. A round hole 15 is provided in the spring baffle 11, the tail of the locking shaft 6 extends into the round hole 15, and the head of the locking shaft 6 extends out from the guide sleeve 13.

[0033] One end of the locking shaft 6 engages with the round hole 15 inside the spring baffle 11, and the other end engages with the guide sleeve 13. The spring baffle 11 and the guide sleeve 13 guide it to ensure that it moves along the set trajectory.

[0034] Example 3

[0035] like Figure 1 and Figure 3 As shown in Embodiment 1, Embodiment 2, a handheld anti-fall attachment device of this utility model, also includes a polygonal plate 1. A U-shaped hook 3 is provided on the upper side of the polygonal plate 1. A latch 4 is rotatably provided on the polygonal plate 1 via a pin 2. Tension springs 5 ​​are connected to both sides of the latch 4, and one end of the tension spring 5 is fixed to the polygonal plate 1. A locking shaft 6 is telescopically provided on the polygonal plate 1. A locking hole 17 matching the locking shaft 6 is provided at the lower end of the latch 4. A wrench 10 is rotatably provided on the polygonal plate 1 via a pin 2. The wrench 10 is in a transmission cooperation with the locking shaft 6 and is used to drive the locking shaft 6 to move. A second handle 9 is provided on the lower side of the polygonal plate 1, and a protective plate 8 is provided between the lower side of the polygonal plate 1 and the second handle 9. A spring baffle 11 and a guide sleeve 13 are respectively provided on the polygonal plate 1 via a pair of pins 2. The spring baffle 11 has a circular hole 15. The tail of the locking shaft 6 extends into the circular hole 15, and the head of the locking shaft 6 extends out from the guide sleeve 13. One end of the locking shaft 6 engages with the circular hole 15 in the spring baffle 11, and the other end engages with the guide sleeve 13. The guidance of the spring baffle 11 and the guide sleeve 13 ensures that it moves along a set trajectory.

[0036] Unlike Embodiment 2, in Embodiment 3, a handheld anti-fall attachment device of this utility model includes a collar 14 on the locking shaft 6 and a spring 7 fitted onto the locking shaft 6, located between the spring baffle 11 and the collar 14. When the locking shaft 6 moves toward the spring baffle 11, the spring 7 contracts, and the latch 4 is unlocked. When the wrench 10 stops applying force, the locking shaft 6 resets under the elastic force of the spring 7, locking the latch 4, making operation more convenient.

[0037] Example 4

[0038] like Figure 1 and Figure 3As shown in Embodiment 3, Embodiment 4, a handheld anti-fall attachment device of this utility model, also includes a polygonal plate 1. A U-shaped hook 3 is provided on the upper side of the polygonal plate 1. A latch 4 is rotatably provided on the polygonal plate 1 via a pin 2. Tension springs 5 ​​are connected to both sides of the latch 4, and one end of the tension spring 5 is fixed to the polygonal plate 1. A locking shaft 6 is telescopically provided on the polygonal plate 1. A locking hole 17 matching the locking shaft 6 is provided at the lower end of the latch 4. A wrench 10 is rotatably provided on the polygonal plate 1 via a pin 2. The wrench 10 is in a transmission cooperation with the locking shaft 6 and is used to drive the locking shaft 6 to move. A second handle 9 is provided on the lower side of the polygonal plate 1, and a protective plate 8 is provided between the lower side of the polygonal plate 1 and the second handle 9. A spring baffle 11 and a guide sleeve 13 are respectively provided on the polygonal plate 1 via a pair of pins 2. A circular hole 15 is provided inside the spring baffle 11, into which the tail of the locking shaft 6 extends, and the head of the locking shaft 6 extends out from the guide sleeve 13. One end of the locking shaft 6 engages with the circular hole 15 in the spring baffle 11, and the other end engages with the guide sleeve 13. Guided by the spring baffle 11 and the guide sleeve 13, it can be ensured to move along a set trajectory. A collar 14 is provided on the locking shaft 6, and a spring 7 is fitted onto the locking shaft 6, located between the spring baffle 11 and the collar 14. When the locking shaft 6 moves towards the spring baffle 11, the spring 7 contracts, and the latch 4 is in the unlocked state. When the wrench 10 no longer applies force, the locking shaft 6 returns to its original position under the elastic force of the spring 7, locking the latch 4, making operation convenient.

[0039] like Figure 3 As shown, unlike Embodiment 3, in Embodiment 4, a handheld anti-fall attachment device of this utility model, the locking shaft 6 is installed in the guide sleeve 13 through the linear bearing 12, which can reduce the friction force generated when the locking shaft 6 and the guide sleeve 13 are in direct contact and extend the service life of the locking shaft 6.

[0040] Example 5

[0041] like Figure 1 and Figure 3As shown in Embodiment 4, Embodiment 5, a handheld anti-fall attachment device of this utility model, also includes a polygonal plate 1. A U-shaped hook 3 is provided on the upper side of the polygonal plate 1. A latch 4 is rotatably provided on the polygonal plate 1 via a pin 2. Tension springs 5 ​​are connected to both sides of the latch 4, and one end of the tension spring 5 is fixed to the polygonal plate 1. A locking shaft 6 is telescopically provided on the polygonal plate 1. A locking hole 17 matching the locking shaft 6 is provided at the lower end of the latch 4. A wrench 10 is rotatably provided on the polygonal plate 1 via a pin 2. The wrench 10 is in a transmission cooperation with the locking shaft 6 and is used to drive the locking shaft 6 to move. A second handle 9 is provided on the lower side of the polygonal plate 1, and a protective plate 8 is provided between the lower side of the polygonal plate 1 and the second handle 9. A spring baffle 11 and a guide sleeve 13 are respectively provided on the polygonal plate 1 via a pair of pins 2. A circular hole 15 is provided inside the spring baffle 11, into which the tail of the locking shaft 6 extends, and the head of the locking shaft 6 extends out from the guide sleeve 13. One end of the locking shaft 6 engages with the circular hole 15 in the spring baffle 11, and the other end engages with the guide sleeve 13. Guided by the spring baffle 11 and the guide sleeve 13, it can be ensured to move along a set trajectory. A collar 14 is provided on the locking shaft 6, and a spring 7 is fitted onto the locking shaft 6, located between the spring baffle 11 and the collar 14. When the locking shaft 6 moves towards the spring baffle 11, the spring 7 contracts, and the latch 4 is in the unlocked state. When the wrench 10 no longer applies force, the locking shaft 6 returns to its original position under the elastic force of the spring 7, locking the latch 4, making operation convenient. The locking shaft 6 is installed in the guide sleeve 13 through the linear bearing 12, which can reduce the friction generated when the locking shaft 6 is in direct contact with the guide sleeve 13 and extend the service life of the locking shaft 6.

[0042] like Figure 4 As shown, unlike Embodiment 4, in Embodiment 5, a handheld anti-fall attachment device of this utility model includes a wrench 10 with a first handle 101. A connecting shaft 102 is provided at the upper end of the first handle 101, and a fork 103 is provided on the connecting shaft 102. An angle is formed between the fork 103 and the first handle 101. After the fork 103 is inserted into the locking shaft 4, it presses against the collar 14, driving the locking shaft 4 to move by pressing down on the collar 14.

[0043] Example 6

[0044] like Figure 1 and Figure 3As shown in Embodiment 5, Embodiment 6, a handheld anti-fall attachment device of this utility model, also includes a polygonal plate 1. A U-shaped hook 3 is provided on the upper side of the polygonal plate 1. A latch 4 is rotatably provided on the polygonal plate 1 via a pin 2. Tension springs 5 ​​are connected to both sides of the latch 4, and one end of the tension spring 5 is fixed to the polygonal plate 1. A locking shaft 6 is telescopically provided on the polygonal plate 1. A locking hole 17 matching the locking shaft 6 is provided at the lower end of the latch 4. A wrench 10 is rotatably provided on the polygonal plate 1 via a pin 2. The wrench 10 is in a transmission cooperation with the locking shaft 6 and is used to drive the locking shaft 6 to move. A second handle 9 is provided on the lower side of the polygonal plate 1, and a protective plate 8 is provided between the lower side of the polygonal plate 1 and the second handle 9. A spring baffle 11 and a guide sleeve 13 are respectively provided on the polygonal plate 1 via a pair of pins 2. A circular hole 15 is provided inside the spring baffle 11, into which the tail of the locking shaft 6 extends, and the head of the locking shaft 6 extends out from the guide sleeve 13. One end of the locking shaft 6 engages with the circular hole 15 in the spring baffle 11, and the other end engages with the guide sleeve 13. Guided by the spring baffle 11 and the guide sleeve 13, it can be ensured to move along a set trajectory. A collar 14 is provided on the locking shaft 6, and a spring 7 is fitted onto the locking shaft 6, located between the spring baffle 11 and the collar 14. When the locking shaft 6 moves towards the spring baffle 11, the spring 7 contracts, and the latch 4 is in the unlocked state. When the wrench 10 no longer applies force, the locking shaft 6 returns to its original position under the elastic force of the spring 7, locking the latch 4, making operation convenient. The locking shaft 6 is mounted inside the guide sleeve 13 via a linear bearing 12, which reduces the frictional force generated when the locking shaft 6 is in direct contact with the guide sleeve 13, thus extending the service life of the locking shaft 6. Figure 4 As shown, the wrench 10 includes a first handle 101, with a connecting shaft 102 at the upper end of the first handle 101. A fork 103 is provided on the connecting shaft 102, and an angle is formed between the fork 103 and the first handle 101. After the fork 103 is inserted into the locking shaft 4, it will press against the collar 14, and the locking shaft 4 will move by pressing down on the collar 14.

[0045] like Figure 5 As shown, unlike Embodiment 5, in Embodiment 6, a handheld anti-fall hanging point device of this utility model is provided with pull rings 16 on both sides of the latch 4, and one end of the tension spring 5 is connected to the corresponding pull ring 16, which makes installation more convenient.

Claims

1. A handheld fall arrestor device, characterized in that, The device includes a polygonal plate (1), on the upper side of which is provided a U-shaped hook (3). A latch (4) is rotatably provided on the polygonal plate (1) via a pin (2). Tension springs (5) are connected to both sides of the latch (4), and one end of the tension springs (5) is fixed on the polygonal plate (1). A locking shaft (6) is telescopically provided on the polygonal plate (1). A locking hole (17) matching the locking shaft (6) is provided at the lower end of the latch (4). A wrench (10) is rotatably provided on the polygonal plate (1) via a pin (2). The wrench (10) is in transmission cooperation with the locking shaft (6) and is used to drive the locking shaft (6) to move.

2. The handheld fall arrestor device according to claim 1, characterized in that, The polygonal plate (1) is provided with a spring baffle (11) and a guide sleeve (13) respectively via a pair of pins (2). The spring baffle (11) has a round hole (15) inside. The tail of the locking shaft (6) extends into the round hole (15), and the head of the locking shaft (6) extends out from the guide sleeve (13).

3. The handheld fall arrestor device according to claim 2, characterized in that, A collar (14) is provided on the locking shaft (6), and a spring (7) is sleeved on the locking shaft (6). The spring (7) is located between the spring baffle (11) and the collar (14).

4. The handheld fall arrestor device according to claim 3, characterized in that, The locking shaft (6) is installed in the guide sleeve (13) via a linear bearing (12).

5. The handheld fall arrestor device according to claim 4, characterized in that, The wrench (10) includes a first handle (101), the upper end of the first handle (101) is provided with a connecting shaft (102), the connecting shaft (102) is provided with a fork (103), and the fork (103) forms an angle with the first handle (101).

6. The handheld fall arrestor device according to claim 5, characterized in that, Both sides of the latch (4) are provided with pull rings (16), and one end of the tension spring (5) is connected to the corresponding pull ring (16).

7. The handheld fall arrestor device according to claim 6, characterized in that, A second handle (9) is provided on the lower side of the polygonal plate (1).

8. The handheld fall arrestor device according to claim 7, characterized in that, A protective plate (8) is provided between the lower side of the polygonal plate (1) and the second handle (9).

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