A kind of anti-falling safety hook device for ultra-high voltage power transmission tower climbing operation

Abstract

The application discloses an anti-falling safety hook device for climbing work of an ultrahigh-voltage power transmission tower, which comprises an extension rod, one end of the extension rod is provided with a handle, a pressing plate is rotatably arranged in the handle, the other end of the extension rod is provided with a hook body, a lock tongue is rotatably arranged in the hook body, torsional springs are arranged between the lock tongue and the hook body and between the pressing plate and the handle, and the lock tongue and the pressing plate are in transmission cooperation. The application solves the problem that the existing hook is generally small in size and limited in stretchable distance.

Description

Technical Field

[0001] This invention belongs to the field of power grid maintenance technology, specifically relating to a fall-prevention safety hook device for climbing ultra-high voltage transmission towers. Background Technology

[0002] During power grid maintenance, workers need to climb transmission towers. During this climb, hooks need to be secured to the tower, and workers are then secured to the hooks with safety ropes to ensure their safety. However, existing hooks are generally small and have limited reach. This necessitates frequent hook changes and requires bending over to achieve a greater hanging distance. Therefore, there is an urgent need to improve the existing hooks to allow workers to hang them more effectively and safely during climbing. Summary of the Invention

[0003] The purpose of this invention is to provide a fall protection safety hook device for climbing ultra-high voltage transmission towers, which solves the problem that existing hooks are generally small in size and have limited extension distance.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a fall-prevention safety hook device for climbing ultra-high voltage transmission towers, comprising an extension rod, a handle at one end of the extension rod, a pressure plate rotatably disposed inside the handle, a hook body at the other end of the extension rod, a locking tongue rotatably disposed inside the hook body, torsion springs being provided between the locking tongue and the hook body and between the pressure plate and the handle, and the locking tongue and the pressure plate engaging in a transmission cooperation.

[0005] The technical solution of the present invention also has the following characteristics:

[0006] As a preferred embodiment of the present invention, both the hook body and the handle are provided with pulleys, the pressure plate is provided with a pressure roller, the locking tongue is connected with a guide pin, the hook body is provided with an arc-shaped groove, the guide pin is slidably installed in the arc-shaped groove, a traction rope is connected to the guide pin, and one end of the traction rope passes around the pulley and the pressure roller and is fixed to the handle.

[0007] In a preferred embodiment of the present invention, the number of pressure rollers is two.

[0008] As a preferred embodiment of the present invention, the hook body is provided with two pulleys arranged upwards; the handle is provided with one pulley, and the pulley on the handle and the uppermost pulley on the hook body are at the same horizontal height.

[0009] As a preferred embodiment of the present invention, a fixing rod is connected between the hook body and the handle.

[0010] The beneficial effects of this invention are:

[0011] (1) The present invention provides a fall prevention safety hook device for climbing ultra-high voltage transmission towers. By using an extension rod and a traction rope, the operator can control the remote hook at the handle end, which significantly reduces the frequent bending movements during the climbing process, reduces the burden on the waist, and improves the comfort of the operation.

[0012] (2) The present invention provides a fall protection safety hook device for climbing ultra-high voltage transmission towers. The device automatically unlocks when the handle is gripped, and the unlocking can be completed by simply pressing the pressure plate, which simplifies the operation process and improves climbing efficiency.

[0013] (3) The present invention provides a safety hook device for preventing falls during climbing operations on ultra-high voltage transmission towers, which can automatically hook angle iron with the aid of its own weight, simplifying the operation steps and improving the smoothness of hooking.

[0014] (4) The present invention provides a safety hook device for climbing ultra-high voltage transmission towers to prevent falls. The locking tongue is normally closed under the action of the torsion spring. If the pressure plate is accidentally touched in the non-grip state, the hook will not open, thus ensuring safe locking in the non-operation state. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a fall-prevention safety hook device for climbing ultra-high voltage power transmission towers according to the present invention;

[0016] Figure 2 This is a cross-sectional view of a fall-prevention safety hook device for climbing ultra-high voltage power transmission towers according to the present invention.

[0017] In the picture:

[0018] 1. Pressure plate;

[0019] 2. Handle;

[0020] 3. Fixing rod;

[0021] 4. Extension rod;

[0022] 5. Pulleys;

[0023] 6. Tow rope;

[0024] 7. Hooks;

[0025] 8. Locking tongue;

[0026] 9. Salesperson;

[0027] 10. Shaft;

[0028] 11. Arc-shaped groove;

[0029] 12. Pressure roller. Detailed Implementation

[0030] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Example 1

[0032] like Figure 1 As shown, the present invention discloses a fall protection safety hook device for climbing ultra-high voltage transmission towers, comprising an extension rod 4, a handle 2 at one end of the extension rod 4, a pressure plate 1 rotatably disposed inside the handle 2 via a rotating shaft 10, a hook body 7 at the other end of the extension rod 4, a locking tongue 8 rotatably disposed inside the hook body 7 via a rotating shaft 10, torsion springs being provided between the locking tongue 8 and the hook body 7 and between the pressure plate 1 and the handle 2, and the locking tongue 8 and the pressure plate 1 being in a transmission engagement.

[0033] The working principle of the fall protection safety hook device for climbing ultra-high voltage transmission towers of the present invention is as follows:

[0034] Hooked state: When gripping handle 2, the unlocking plate 1 is pressed, and the hook is unlocked. Bring the hook close to the angle iron, and under the action of the device's own weight, push open the locking tongue 8, allowing the angle iron to be smoothly hooked into the hook body 7.

[0035] Unlocking and removing the hook: Grasp the handle 2 with one hand to unlock the hook, and press the pressure plate 1 with your index finger to drive the bolt 8 to open and complete the unlocking. The hook can then be easily removed from the angle iron.

[0036] Transfer and Hooking: The addition of extension rod 4 facilitates the movement of the hook to the next target angle iron without requiring significant adjustments to the operator's posture. Utilizing gravity and the hook's shape, the hook naturally hooks into the angle iron.

[0037] Locking: After the angle iron is hooked in, the pressure plate 1 is released, and the locking tongue 8 and the pressure plate 1 are reset under the action of the torsion spring, and the hook will return to the locked state.

[0038] Example 2

[0039] like Figure 1 and Figure 2 As shown, unlike Embodiment 1, in Embodiment 2, the safety hook device for preventing falls during climbing operations on ultra-high voltage transmission towers of the present invention is provided with pulleys 5 on both the hook body 7 and the handle 2, pressure rollers 12 on the pressure plate 1, guide pins 9 connected to the locking tongue 8, arc-shaped grooves 11 on the hook body 7, guide pins 9 slidingly installed in the arc-shaped grooves 11, and traction ropes 6 connected to the guide pins 9. One end of the traction ropes 6 passes around the pulleys 5 and pressure rollers 12 and is fixed to the handle 2.

[0040] Unlocking Process: The locking tongue 8 on the hook body 7 is connected to the pressure plate 1 at the handle 2 via the traction rope 6, and the pulley system is responsible for changing the direction of the pulling force. The locking tongue 8 is rotatably assembled to the hook body 7 via the pin 10, and the torsion spring keeps it in the locked state; the pressure plate 1 is also connected to the handle 2 via the pin 10, and the torsion spring keeps it in the raised state. When the handle 2 is gripped, the pressure plate 1 is pressed down, and the pressure roller 12 causes the traction rope 6 to be bent like a bowstring, which drives the locking tongue 8 to overcome the spring force of the torsion spring and complete the unlocking.

[0041] Unlocking process: The locking tongue 8 is connected to the pressure plate 1 via the traction rope 6, and the pulley system reverses the direction of the pulling force. The locking tongue 8 is connected to the hook body 7 via the pin 10, and a torsion spring keeps it in the locked state; the pressure plate 1 is connected to the handle 1 via the pin 10, and a torsion spring keeps it in the raised state. In the unlocked state, pulling the pressure plate 1 pulls the traction rope, causing the locking tongue 8 to overcome the spring force of the torsion spring and complete the unlocking.

[0042] Example 3

[0043] like Figure 1 and Figure 2 As shown, unlike Embodiment 2, in Embodiment 3, the number of pressure rollers 12 in the fall protection safety hook device for climbing ultra-high voltage transmission towers of the present invention is two; the number of pulleys 2 on the hook body 7 is two, and they are arranged upwards; the number of pulleys 5 on the handle 2 is one, and the pulley 5 on the handle 2 and the uppermost pulley 5 on the hook body 7 are at the same horizontal height. This is to facilitate guidance and tension transmission.

[0044] Example 4

[0045] like Figure 1 and Figure 2 As shown, unlike Embodiment 3, in Embodiment 4, a fixed rod 3 is connected between the hook body 7 and the handle 2 in an anti-fall safety hook device for climbing ultra-high voltage transmission towers according to the present invention.

[0046] The fixing rod 3 ensures good connection stability between the hook body 7 and the handle 2.

[0047] Therefore, compared with the prior art, the present invention has the following advantages:

[0048] (1) The present invention provides a fall prevention safety hook device for climbing ultra-high voltage transmission towers. By using an extension rod and a traction rope, the operator can control the remote hook at the handle end, which significantly reduces the frequent bending movements during the climbing process, reduces the burden on the waist, and improves the comfort of the operation.

[0049] (2) The present invention provides a fall protection safety hook device for climbing ultra-high voltage transmission towers. The device automatically unlocks when the handle is gripped, and the unlocking can be completed by simply pressing the pressure plate, which simplifies the operation process and improves climbing efficiency.

[0050] (3) The present invention provides a safety hook device for preventing falls during climbing operations on ultra-high voltage transmission towers, which can automatically hook angle iron with the aid of its own weight, simplifying the operation steps and improving the smoothness of hooking.

[0051] (4) The present invention provides a safety hook device for climbing ultra-high voltage transmission towers to prevent falls. The locking tongue is normally closed under the action of the torsion spring. If the pressure plate is accidentally touched in the non-grip state, the hook will not open, thus ensuring safe locking in the non-operation state.

Claims

1. A fall-prevention safety hook device for climbing ultra-high voltage transmission towers, characterized in that, The device includes an extension rod (4), one end of which is provided with a handle (2), and a pressure plate (1) is rotatably provided inside the handle (2). The other end of the extension rod (4) is provided with a hook (7), and a locking tongue (8) is rotatably provided inside the hook (7). Torsion springs are provided between the locking tongue (8) and the hook (7) and between the pressure plate (1) and the handle (2). The locking tongue (8) and the pressure plate (1) are in a transmission engagement.

2. The fall protection safety hook device for climbing ultra-high voltage transmission towers according to claim 1, characterized in that, Both the hook body (7) and the handle (2) are provided with pulleys (5), the pressure plate (1) is provided with a pressure roller (12), the locking tongue (8) is connected with a guide pin (9), the hook body (7) is provided with an arc-shaped groove (11), the guide pin (9) is slidably installed in the arc-shaped groove (11), the guide pin (9) is connected with a traction rope (6), one end of the traction rope (6) passes around the pulley (5) and the pressure roller (12) and is fixed on the handle (2).

3. The fall protection safety hook device for climbing ultra-high voltage transmission towers according to claim 2, characterized in that, The number of pressure rollers (12) is two.

4. The fall protection safety hook device for climbing ultra-high voltage transmission towers according to claim 3, characterized in that, The hook body (7) is provided with two pulleys (2) arranged upwards; the handle (2) is provided with one pulley (5), and the pulley (5) on the handle (2) and the uppermost pulley (5) on the hook body (7) are at the same horizontal height.

5. The fall protection safety hook device for climbing ultra-high voltage transmission towers according to claim 4, characterized in that, A fixing rod (3) is connected between the hook (7) and the handle (2).

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