Anti-falling self-locking device for high tower operation

Abstract

The utility model provides an anti-falling self-locking device for high tower operation, and belongs to the field of self-locking devices, the anti-falling self-locking device comprises a shell, a guide sheet is arranged on the surface of the front end of the shell, moving assemblies are arranged on the two sides and the upper end of the shell, a key assembly is arranged on the lower side of the center of each moving assembly, and when the shell enters a T-shaped track, the guide sheet is locked by the key assembly. An obstacle removing blade on the inner side of the front end shovels and cleans obstacles on the surface of the T-shaped rail, it is guaranteed that sliding of a shell is not hindered, sliding stability is guaranteed, the position and the locking angle of a rotating plate are controlled through an axial spring, and when the moving speed changes rapidly, the rotating plate can rotate through a first pin shaft according to the huge change of the weight of a load person pulled by a lantern ring; therefore, the self-locking sliding claw is clamped and embedded in the surface of the T-shaped rail, the shell and the T-shaped rail are relatively static, continuous falling and sliding are avoided, and the anti-falling purpose is achieved.

Description

Technical Field

[0001] This utility model relates to the field of self-locking devices, and more specifically, to a fall-prevention self-locking device for high-tower operations. Background Technology

[0002] Working at heights is frequently employed, and due to the lack of reliable fall protection measures, falls often occur. my country's power industry regulations stipulate that workers must not be without safety belts while working at heights. However, in reality, safety belts are ineffective when moving on poles and towers, hence the development of fall protection devices for pole and tower work. Currently, the sizes of self-locking devices and guide rails produced by various domestic manufacturers are inconsistent, and more than one type of guide rail may be installed on the same operating line. Accidents frequently occur due to carelessness on the part of workers, resulting in mismatched self-locking devices and guide rails.

[0003] A search revealed that Chinese patent CN201783107U discloses a "high-altitude operation fall prevention device with mechanical identification function," comprising a guide rail and a self-locking device. The self-locking device includes a housing and a brake plate, with the brake plate hinged to the housing via a hinge shaft. The housing has a guide rail groove, and the housing fits onto the guide rail through the groove. The brake plate has a safety belt hole at its tail. When the tail of the brake plate is pulled downwards, its head contacts the guide rail surface. The device is characterized by a mechanical identification module, consisting of an identification boss at the tail of the self-locking device and an identification groove on the guide rail. The self-locking device and the guide rail are matched through the corresponding boss and groove, allowing workers to immediately confirm whether the guide rail is compatible on-site. This high-altitude operation fall prevention device with mechanical identification function allows workers to check the compatibility between the guide rail and the self-locking device before climbing, ensuring the safety of workers by identifying the compatibility. However, it still has the following drawbacks:

[0004] (1) There are obstacles in the use of existing self-locking devices. For example, when using existing anti-fall devices in snowy weather, snowfall will cause snow to accumulate on the guide rail. When the anti-fall device moves on the guide rail, the snow on the guide rail will easily obstruct the opening and closing of the anti-fall device, thereby indirectly reducing the construction or maintenance efficiency.

[0005] (2) After one fall protection use, the brake teeth of the existing self-locking device will be worn down, making the surface of the brake teeth smooth. This will affect the effect of the brake teeth locking the buckle and affect the safety of the fall protection self-locking device. Moreover, the brake teeth in a self-locking device cannot be disassembled separately, so the entire self-locking device needs to be discarded. Only the brake teeth of the self-locking device are worn, which makes the self-locking device unusable and reduces its practicality.

[0006] Therefore, we have made improvements to this and proposed a fall arrestor for high-tower operations. Utility Model Content

[0007] The purpose of this utility model is to address the following issues with existing self-locking devices: Firstly, obstacles can arise during use. For instance, in snowy weather, snow accumulation on the guide rail can hinder the opening and closing of the device. Secondly, after each use, the brake teeth of existing self-locking devices wear down, becoming smooth and affecting their locking mechanism, thus compromising safety. Thirdly, the brake teeth cannot be individually removed, requiring the entire device to be discarded.

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0009] A fall arrestor for high-tower operations is proposed to address the aforementioned problems.

[0010] The present invention is as follows:

[0011] The device includes a housing, a guide plate is provided on the front surface of the housing, movable components are provided on both sides and the top of the housing, and a key assembly is provided on the lower center side of the movable component.

[0012] The moving component includes pulleys arranged on the inner walls of both sides of the housing, and the moving component also includes a top shell installed on the upper side of the housing. A first pin is inserted into the center of the top shell, and a rotating plate is installed on the upper side of the center of the first pin.

[0013] The key assembly includes a slot on the lower side wall of the turntable, and a plug plate is detachably inserted into the slot.

[0014] As a preferred technical solution of this utility model, a second pin is installed on the left side of the rotating plate, and a collar is installed on the left end of the second pin.

[0015] As a preferred technical solution of this utility model, an axial spring is fitted on the outer wall between the first pin and the rotating plate.

[0016] As a preferred technical solution of this utility model, a limiting groove is provided on the side of the slot near the center of the rotating plate, and a limiting plate that cooperates with the limiting groove is provided on the side of the insert plate near the limiting groove.

[0017] As a preferred technical solution of this utility model, a self-locking sliding claw is fitted on the upper surface of the front side of the insert plate.

[0018] As a preferred technical solution of this utility model, the insert plate is provided with first screw grooves symmetrically on both sides, and the slot is provided with second screw grooves on both sides corresponding to the positions of the first screw grooves.

[0019] As a preferred technical solution of this utility model, a fixing bolt is installed in both the first screw groove and the second screw groove.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] In the solution of this utility model:

[0022] 1. Through the setting of pulleys, first pin, rotating plate, second pin, and axial spring, when the housing enters the T-shaped track, the obstruction removal blade on the inner front side removes and cleans the obstructions on the surface of the T-shaped track, ensuring that the sliding of the housing is not hindered and ensuring sliding stability. The anti-fall self-locking device is firmly attached to this surface when sliding on the moving T-shaped track. Pulleys are provided on both sides of the housing to fully assist the side deviation of the track and gradually reduce the friction with the track. The pulleys are all enclosed to avoid excessive damage to the contact surface. The rotating plate in the middle of the housing is controlled by the axial spring to control the position and locking angle of the rotating plate. When there is a rapid change in the movement speed, the rotating plate will rotate through the first pin according to the huge change in the weight of the load pulled by the collar, so that the self-locking sliding claw is engaged in the surface of the T-shaped track, making the housing and the T-shaped track relatively stationary, thereby preventing further falling and sliding, thus achieving the purpose of anti-fall.

[0023] 2. Using the included insert plate, limit plate, self-locking sliding claw, first threaded groove, second threaded groove, and fixing bolt, the self-locking sliding claw needs replacement after one use. Twist the fixing bolt to engage and rotate it within the first and second threaded grooves, allowing the fixing bolt to be removed. Pull the insert plate to the right to disengage it from the slot, thus removing the worn self-locking sliding claw. Insert the insert plate with the new self-locking sliding claw into the slot, and simultaneously insert the limit plate into the aligned limit groove, aligning the first and second threaded grooves. Twist the fixing bolt to install it within the aligned first and second threaded grooves. This completes the quick replacement and fixing of the self-locking sliding claw, improving the practicality of the self-locking device. Attached Figure Description

[0024] Figure 1 A schematic diagram of the overall front view of a fall arrestor for high-tower operations provided by this utility model;

[0025] Figure 2 A side view of the overall structure of a fall arrestor for high-tower operations provided by this utility model;

[0026] Figure 3A schematic diagram of the key assembly structure of a fall arrestor for high-tower operations provided by this utility model;

[0027] Figure 4 This utility model provides a fall arrestor for high-tower operations. Figure 3 A magnified schematic diagram of part A in the middle.

[0028] The image shows:

[0029] 1. Housing; 2. Guide plate; 301. Pulley; 302. Top shell; 303. First pin; 304. Rotating plate; 305. Second pin; 306. Collar; 307. Axial spring; 401. Slot; 402. Insert plate; 403. Limiting slot; 404. Limiting plate; 405. Self-locking sliding claw; 406. First threaded groove; 407. Second threaded groove; 408. Fixing bolt. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0031] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0032] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] like Figure 1-4 As shown, this embodiment proposes a fall arrestor for high tower operations, including a housing 1, a guide plate 2 is provided on the front surface of the housing 1, and movable components are provided on both sides and the top of the housing 1. A key assembly is provided on the lower center of the movable component.

[0035] The moving component includes pulleys 301 provided on the inner walls of both sides of the housing 1. The moving component also includes a top shell 302 installed on the upper side of the housing 1. A first pin 303 is inserted into the center of the top shell 302, and a rotating plate 304 is installed on the upper side of the center of the first pin 303.

[0036] The key assembly includes a slot 401 formed in the lower side wall of the rotating plate 304, and a plug plate 402 is detachably inserted into the slot 401.

[0037] like Figure 1 As shown, the second pin 305 is installed on the left side of the rotating plate 304. A collar 306 is installed on the left end of the second pin 305. The rotating plate 304 will rotate through the first pin 303 according to the huge change in the weight of the load pulled by the collar 306, so that the self-locking sliding claw 405 is locked into the surface of the T-shaped track.

[0038] like Figure 1 As shown, an axial spring 307 is fitted on the outer wall between the first pin 303 and the rotating plate 304. The axial spring 307 controls the position and locking angle of the rotating plate 304. When the movement speed changes rapidly, the rotating plate 304 will rotate through the first pin 303 according to the huge change in the weight of the load pulled by the collar 306. This causes the self-locking sliding claw 405 to be engaged with the surface of the T-shaped track, so that the housing 1 and the T-shaped track are relatively stationary, thereby preventing further falling and sliding.

[0039] like Figure 4 As shown, a limiting groove 403 is provided on the side of the slot 401 near the center of the rotating plate 304. A limiting plate 404 that cooperates with the limiting groove 403 is provided on the side of the insert plate 402 near the limiting groove 403. The limiting plate 404 is inserted into the aligned limiting groove 403, so that the first screw groove 406 and the second screw groove 407 are aligned. The fixing bolt 408 is twisted and installed in the aligned first screw groove 406 and second screw groove 407, so that the self-locking sliding claw 405 can be quickly replaced and fixed.

[0040] like Figure 4 As shown, a self-locking sliding claw 405 is fitted on the upper front surface of the insert plate 402. By twisting the fixing bolt 408, it is made to engage and rotate in the first screw groove 406 and the second screw groove 407, so that the fixing bolt 408 can be removed from the first screw groove 406 and the second screw groove 407. By pulling the insert plate 402 to the right to disengage it from the slot 401, the worn self-locking sliding claw 405 can be removed.

[0041] like Figure 4As shown, the insert plate 402 has symmetrical first screw grooves 406 on both sides, and the slot 401 has second screw grooves 407 on both sides corresponding to the positions of the first screw grooves 406. The first screw grooves 406 and the second screw grooves 407 mesh and rotate, so that the fixing bolts 408 can be removed from the first screw grooves 406 and the second screw grooves 407. Pull the insert plate 402 to the right to disengage it from the slot 401, so that the worn self-locking sliding claw 405 can be removed, and the insert plate 402 with a brand new self-locking sliding claw 405 can be inserted into the slot 401.

[0042] like Figure 4 As shown, a fixing bolt 408 is installed in both the first screw groove 406 and the second screw groove 407. The first screw groove 406 and the second screw groove 407 are aligned. By twisting the fixing bolt 408 into the aligned first screw groove 406 and the second screw groove 407, the self-locking sliding claw 405 can be quickly replaced and fixed, which improves the practicality of the self-locking device.

[0043] Specifically: When housing 1 enters the T-shaped track, the obstruction-removing blade on the inner front side removes and cleans the obstructions on the surface of the T-shaped track, ensuring that the sliding of housing 1 is unimpeded and ensuring sliding stability. The anti-fall self-locking device firmly adheres to this surface when sliding on the moving T-shaped track. Pulleys 301 are provided on both sides of housing 1 to fully assist in track lateral deviation and gradually reduce friction with the track. The pulleys 301 are completely enclosed to prevent excessive damage to the contact surface. A rotating plate 304 is provided in the middle of housing 1, and its position and locking angle are controlled by an axial spring 307. When there is a rapid change in the movement speed, the rotating plate 304 will rotate via the first pin 303 according to the large change in the weight of the load pulled by the collar 306, thereby causing the self-locking sliding claw 405 to engage with the surface of the T-shaped track, making housing 1 relatively stationary with respect to the T-shaped track, thus preventing further... The self-locking sliding claw 405 continues to slide down, thus achieving the purpose of preventing falls. After the self-locking sliding claw 405 has been used once, it needs to be replaced. Twist the fixing bolt 408 to make it engage and rotate in the first screw groove 406 and the second screw groove 407, so that the fixing bolt 408 can be removed from the first screw groove 406 and the second screw groove 407. Pull the insert plate 402 to the right to disengage it from the slot 401, so that the worn self-locking sliding claw 405 can be removed. Insert the insert plate 402 with a brand new self-locking sliding claw 405 into the slot 401. At the same time, insert the limiting plate 404 into the aligned limiting groove 403, so that the first screw groove 406 and the second screw groove 407 are aligned. Twist the fixing bolt 408 and install it in the aligned first screw groove 406 and the second screw groove 407. This completes the quick replacement and fixing of the self-locking sliding claw 405, improving the practicality of the self-locking device.

[0044] All technical features in this embodiment can be freely combined according to actual needs.

[0045] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A fall arrestor for high-tower operations, comprising a housing (1), characterized in that: The front surface of the housing (1) is provided with a guide plate (2), and the housing (1) is provided with movable components on both sides and the top. A key component is provided on the lower side of the center of the movable component. The moving component includes pulleys (301) provided on the inner walls of both sides of the housing (1). The moving component also includes a top shell (302) installed on the upper side of the housing (1). A first pin (303) is inserted inside the center of the top shell (302), and a rotating plate (304) is installed on the upper side of the center of the first pin (303). The key assembly includes a slot (401) on the lower side wall of the turn plate (304), and a plug plate (402) is detachably inserted into the slot (401).

2. A fall arrestor for high-tower operations according to claim 1, characterized in that, The second pin (305) is installed on the left side of the rotating plate (304) at the front and rear, and a collar (306) is installed on the left end of the second pin (305).

3. A fall arrestor for high-tower operations according to claim 1, characterized in that, An axial spring (307) is fitted on the outer wall between the first pin (303) and the rotating plate (304).

4. A fall arrestor for high-tower operations according to claim 1, characterized in that, The slot (401) has a limiting groove (403) on the side near the center of the rotating plate (304), and the insert plate (402) has a limiting plate (404) that cooperates with the limiting groove (403) on the side near the limiting groove (403).

5. A fall arrestor for high-tower operations according to claim 1, characterized in that, The upper front surface of the insert plate (402) is fitted with a self-locking sliding claw (405).

6. A fall arrestor for high-tower operations according to claim 1, characterized in that, The insert plate (402) has symmetrical first screw grooves (406) on both sides, and the slot (401) has second screw grooves (407) on both sides corresponding to the positions of the first screw grooves (406).

7. A fall arrestor for high-tower operations according to claim 6, characterized in that, A fixing bolt (408) is installed in both the first screw groove (406) and the second screw groove (407).

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