A fixed type steel strand flexible guide rail anti-falling device for aerial work

Abstract

The application belongs to the technical field of aerial work, and discloses a fixed steel strand flexible guide rail anti-falling device for aerial work, which comprises a steel strand and a safety rope. Through cooperation of the trigger assembly and the lock catch two and other structures, when a worker stumbles or suddenly falls down, the weight of the worker is pulled by the safety rope to pull the lock catch one and the protection box, the downward impact force of falling down drives the guide block to descend, two inclined surfaces on the guide block directly extrude two steels and make the steels deform, the protection box also drives the upper ends of the two lock catch two to fold outward and press the steel strand to closely adhere to the roller through the guide rod, the friction force generated by the lock catch two pressing the steel strand can prevent the lock catch two from sliding on the steel strand, so that secondary injury of sliding to the worker is avoided, the lower ends of the two lock catch two fold towards each other, which press the safety rope to closely adhere to the bottom of the protection box, the impact force of falling down is shared on each contact point of the lock catch two pressing the safety rope, so that the possibility of safety rope breakage is avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of high-altitude operation, and particularly relates to a fixed steel strand flexible guide rail anti-falling device for high-altitude operation. BACKGROUND

[0002] The steel strand is a wire rod twisted by multiple steel wires, has high strength, good toughness and corrosion resistance, is generally connected with the high-altitude electric tower through the flexible guide rail, can make the system bear greater tension, can also adapt to the movement track of the load, and is mainly used for supporting and fixing the power line.

[0003] In the prior art, the lock buckle is generally in a movable state, and the device with the relatively single structure still has the risk of personnel falling in the pole tower construction and maintenance operation. If the worker falls or fails to stand stably during the high-altitude operation, the lock buckle is likely to slide on the steel strand, so that the worker is difficult to control the position, the impact force can also damage the safety rope, and the risk coefficient of the manual high-altitude operation is increased. Therefore, the application provides the fixed steel strand flexible guide rail anti-falling device for high-altitude operation. SUMMARY

[0004] To solve the problems in the background, the application provides the fixed steel strand flexible guide rail anti-falling device for high-altitude operation, which solves the problem that the lock buckle is likely to slide on the steel strand when the worker falls or fails to stand stably during the high-altitude operation, and increases the risk coefficient of the high-altitude operation.

[0005] To achieve the above object, the application provides the following technical scheme: a fixed steel strand flexible guide rail anti-falling device for high-altitude operation, which comprises a steel strand and a safety rope, further comprises a trigger assembly, the trigger assembly comprises a protection box, two lock buckles I are fixed at the both ends of the bottom of the protection box, a guide block is fixed in the protection box, and a plurality of guide rods are installed in the protection box.

[0006] The fixed steel strand flexible guide rail anti-falling device further comprises a limiting assembly and two lock buckles II.

[0007] The limiting assembly comprises a limiting frame slidingly installed in the protection box, and two steel bars in contact with the guide block are symmetrically installed on the limiting frame.

[0008] The lock buckle II is divided into two upper and lower parts, the upper end of the lock buckle II is provided with an opening and is in a staggered state, the lower end of the two lock buckles II is curved and the curved parts are staggered, and the curved part of the lock buckle II is provided with a positioning rod.

[0009] The lock No.2 is hung on the steel strand through the upper end opening of the lock No.2, and the safety rope is sequentially threaded through the gap between the lock No.1, the lock No.2 and the positioning rod and another lock No.1;

[0010] The fixed steel strand flexible guide rail anti-falling device further comprises a locking assembly arranged on the protection box.

[0011] The locking assembly comprises a support shaft movably penetrating the top of the protection box and welded to the limiting frame, a roller is rotatably connected to the support shaft, the steel strand is in contact with the roller, a speed reduction gear set is fixedly arranged on the support frame away from the support shaft, and the roller is in transmission connection with the input end of the speed reduction gear set.

[0012] The lowering of the protection box drives the upper ends of the two lock No.2 to fold outward through the guide rod.

[0013] Preferably, the protection box, the guide block, the guide rod and the lock No.1 are made of titanium alloy, and the surfaces of the guide block in contact with the two steel strands are in an inclined state.

[0014] The trigger assembly further comprises a plurality of limiting grooves No.1 arranged on the protection box, and the two lock No.2 movably penetrates each limiting groove No.1.

[0015] Preferably, the limiting assembly further comprises support frames staggered arranged on both sides of the limiting frame, each support frame is provided with a limiting plate, and the limiting plate is provided with a limiting groove No.2.

[0016] Preferably, the two limiting plates are staggered, and the ends of the opening of the two lock No.2 movably penetrate into each limiting groove No.2.

[0017] Preferably, the locking assembly further comprises a gear in transmission connection with the output end of the speed reduction gear set, a toothed plate is arranged on the side of the protection box close to the speed reduction gear set, and the toothed plate is matched with the gear.

[0018] Preferably, the limiting assembly further comprises two springs, the two ends of the top of the limiting frame are elastically connected to the inside of the protection box through the two springs, one corrugated pipe is fixedly arranged at each end of the top of the limiting frame, dry ice is placed in the corrugated pipe, and the gas outlet end of the corrugated pipe faces the outer periphery of the roller.

[0019] Preferably, the bottom of the corrugated pipe is made of metal, and the top of the corrugated pipe is provided with a threaded sealing cover.

[0020] Compared with the prior art, the beneficial effects of the present application are as follows:

[0021] The application sets the cooperation of the trigger assembly and the lock catch two and other structures, when the worker falls down, the weight of the worker pulls the lock catch one and the protection box through the safety rope, the downward impact force of the falling down drives the guide block to descend, the two inclined surfaces on the guide block directly extrude the two steels and make the steels deform, the protection box also drives the upper ends of the two lock catch two to fold outward and press the steel strand close to the roller through the guide rod, the friction force generated by the lock catch two pressing the steel strand can prevent the lock catch two from sliding on the steel strand, avoid the secondary injury to the worker caused by the sliding, the lower ends of the two lock catch two fold towards each other, the lock catch two press the safety rope close to the bottom of the protection box, the impact force of the falling down is distributed on the contact points of the lock catch two pressing the safety rope, and the possibility of the safety rope breaking is avoided.

[0022] The application sets the cooperation of the lock catch two and the limiting assembly and other structures, when the worker works on the platform, the device does not bear the weight of the worker and is in a relaxed state, the opening of the lock catch two is blocked by the limiting plate at this time, and the openings of the two lock catch two are in a staggered shape, which makes the steel strand more difficult to separate from the device and causes danger to the worker, when the worker pulls one of the lock catch two to fold and make it separate from the limiting groove two, the steel strand can enter the inside of the lock catch two through the gap between the opening of the lock catch two and the limiting plate, the other lock catch two is also operated, and the device is more convenient for workers.

[0023] The application sets the cooperation of the locking assembly and the trigger assembly and other structures, when the protection box descends, the lock catch two not only presses the steel strand close to the roller, but also the protection box drives the tooth plate to descend and engage on the gear, at this time, the tooth plate and the roller cannot work, the steel strand cannot drive the roller to roll, further, the device sliding on the steel strand is prevented, and the safety of the worker is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the appearance structure schematic view of the application;

[0025] Figure 2 It is the internal structure cooperation schematic view of the protection box of the application;

[0026] Figure 3 It is the bottom structure cooperation schematic view of the protection box and the safety rope of the application;

[0027] Figure 4 It is the cooperation schematic view of the protection box and the lock catch two through the guide rod of the application;

[0028] Figure 5 It is the cooperation schematic view of the limiting frame and the lock catch two structure of the application;

[0029] Figure 6 It is the cooperation schematic view of the limiting frame and the locking assembly structure of the application;

[0030] Figure 7 This is a schematic diagram of the cooperation between the support frame and the reduction gear set structure of the present invention;

[0031] Figure 8 This is a schematic diagram showing the structural cooperation between the protective box and the locking component of the present invention.

[0032] In the diagram: 1. Trigger assembly; 11. Protective box; 12. Guide block; 13. Guide rod; 14. Lock one; 15. Limiting groove one; 2. Limiting assembly; 21. Limiting frame; 22. Reinforcing bar; 23. Support frame; 24. Limiting plate; 25. Limiting groove two; 26. Spring; 27. Corrugated pipe; 3. Lock two; 31. Positioning rod; 4. Steel strand; 5. Safety rope; 6. Locking assembly; 61. Support shaft; 62. Roller; 63. Reduction gear set; 64. Gear plate; 65. Gear. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] like Figures 1 to 8 As shown, the present invention provides a fixed steel strand flexible guide rail anti-fall device for high-altitude operations, including steel strand 4 and safety rope 5, and also includes a triggering component 1. The triggering component 1 includes a protective box 11, with a lock 14 fixedly installed at both ends of the bottom of the protective box 11, a guide block 12 fixedly installed inside the protective box 11, and several guide rods 13 installed inside the protective box 11.

[0035] The fixed steel strand flexible guide rail anti-fall device also includes a limiting component 2 and two locking buckles 3;

[0036] The limiting component 2 includes a limiting frame 21 that is slidably installed inside the protective box 11, and two steel bars 22 that are symmetrically installed on the limiting frame 21 and contact the guide block 12.

[0037] The second lock 3 is divided into upper and lower parts. The upper part of the second lock 3 has an opening and is staggered. The lower ends of the two second locks 3 are curved and the curved parts are staggered. The curved part of the second lock 3 is equipped with a positioning rod 31.

[0038] Lock 2 3 moves through the protective box 11. Lock 2 3 is hung on the steel strand 4 through its upper opening. The safety rope 5 passes through a lock 1 14, the gap between lock 2 3 and the positioning rod 31 and another lock 1 14 in sequence.

[0039] The fixed steel strand flexible guide rail anti-falling device further comprises a locking assembly 6 arranged on the protection box 11.

[0040] The locking assembly 6 comprises a support shaft 61 movably penetrating the top of the protection box 11 and welded to the limiting frame 21, a roller shaft 62 rotatably connected to the support shaft 61, the steel strand 4 being in contact with the roller shaft 62, a speed reduction gear set 63 fixed to the support frame 23 away from the support shaft 61, and the roller shaft 62 being in transmission connection with the input end of the speed reduction gear set 63.

[0041] The lowering of the protection box 11 will drive the upper ends of the two lock buckles 3 to fold outward through the guide rods 13.

[0042] The protection box 11, the guide block 12, the guide rod 13 and the lock buckle 1 are all made of titanium alloy, and the surface of the guide block 12 in contact with the two steel bars 22 is in an inclined state.

[0043] The trigger assembly 1 further comprises a plurality of limiting grooves 1 arranged on the protection box 11, and the two lock buckles 3 are movably penetrated through the limiting grooves 1, respectively.

[0044] By adopting the above scheme, before the worker performs the high-altitude operation, the two lock buckles 3 need to be sequentially hung on the steel strand 4, and then the safety rope 5 is penetrated through the lock buckle 1 and the lock buckle 2 as described above, and then the safety rope 5 is installed on the high-altitude operation safety clothes according to the process flow, at this time, the worker can continue the remaining work flow.

[0045] When the worker loses his balance or suddenly falls down, his weight will inevitably tighten the safety rope 5 and pull the lock buckle 1 and the protection box 11 through the safety rope 5, at this time, the downward impact force exerted by the worker falling down will drive the guide block 12 to descend, and the two inclined surfaces thereon directly press the two steel bars 22 and make the steel bars 22 deform.

[0046] It is particularly worth noting that, in the normal use process, although the worker pulls the lock buckle 1, the protection box 11 and the guide block 12 to descend through the safety rope 5, and the guide block 12 presses the steel bars 22, his body weight will not make the guide block 12 press the steel bars 22 to deform excessively, but the impact force generated by the worker falling down will be much greater than his body weight, so when falling down, the impact force exerted by the guide block 12 on the steel bars 22 will force it to deform, and the guide block 12 will continue to descend.

[0047] Since the lock buckle 3 is hung on the steel strand 4, the positions of the lock buckle 3 and the limiting frame 21 will not change, and the lowering of the protection box 11 will also drive the upper ends of the two lock buckles 3 to fold outward through the guide rods 13, which will also press the steel strand 4 to tightly contact the roller shaft 62, and the friction force generated by the lock buckle 3 pressing the steel strand 4 can prevent the lock buckle 3 from sliding on the steel strand 4, thereby avoiding secondary injury to the worker caused by sliding.

[0048] Further, the lower ends of the two locking buckles two 3 are folded towards each other, and are limited by the positioning rod 31, so as to press the safety rope 5 against the bottom of the protection box 11, and the impact force generated by the worker falling can be distributed on each contact point of the safety rope 5 pressed by the locking buckle two 3, thereby avoiding the possibility of the safety rope 5 breaking, and further improving the performance of the device in preventing falling.

[0049] As shown in Figure 1 and Figure 2 The limiting assembly 2 further comprises support frames 23 staggered on both sides of the limiting frame 21, and each support frame 23 is provided with a limiting plate 24.

[0050] The two limiting plates 24 are staggered, and the ends of the openings of the two locking buckles two 3 are movably arranged in the limiting grooves two 25, respectively.

[0051] By adopting the above scheme: when the worker works on the platform, the device does not bear the weight of the worker, and is in a relaxed state, at this time, the openings of the locking buckles two 3 are blocked by the limiting plates 24, and the openings of the two locking buckles two 3 are staggered with each other, which makes the steel strand 4 more difficult to separate from the device and cause danger to the worker.

[0052] When the worker folds one of the locking buckles two 3 to make it separate from the limiting groove two 25, the steel strand 4 can enter the inside of the locking buckle two 3 through the gap between the opening of the locking buckle two 3 and the limiting plate 24, and the other locking buckle two 3 is also operated, thereby making the device more convenient.

[0053] As shown in Figures 1-4 and Figures 6-8 The locking assembly 6 further comprises a gear 65 in transmission connection with the output end of the speed reduction gear set 63, and the side of the protection box 11 close to the speed reduction gear set 63 is provided with a toothed plate 64, which is matched with the gear 65.

[0054] By adopting the above scheme: when the protection box 11 descends, the locking buckle two 3 will not only press the steel strand 4 against the roller 62, but also the protection box 11 drives the toothed plate 64 to descend and engage on the gear 65, at this time, the toothed plate 64 and the roller 62 cannot work, and the steel strand 4 will not be able to drive the roller 62 to roll, further preventing the device from sliding on the steel strand 4, thereby ensuring the safety of the worker.

[0055] As shown in Figures 1-4 and Figures 6-8As shown, the limiting assembly 2 further comprises two springs 26, the two ends of the top of the limiting frame 21 are elastically connected with the interior of the protection box 11 through the two springs 26 respectively, a bellows 27 is fixed on the two ends of the top of the limiting frame 21 respectively, dry ice is placed in the interior of the bellows 27, and the gas outlet end of the bellows 27 faces the outer periphery of the roller 62.

[0056] By the above scheme, since the lock catch two 3 is hung on the steel strand 4, the lock catch two 3 and the limiting frame 21 cannot move up and down, when the protection box 11 is lowered, the cold air released by the dry ice in the interior of the bellows 27 is discharged, and the gas outlet end of the bellows 27 guides the cold air to flow upwardly to the roller 62, so that the frictional overheating and damage to the steel strand 4 are avoided.

[0057] It should be noted that the dry ice in the interior of the bellows 27 is added in time after being completely volatilized, so that the cold air in the interior of the bellows is ensured to exist all the time.

[0058] As shown in Figs. Figures 1-4 and Figures 6-8 Figures 1-4 Figures 6-8 The bottom of the bellows 27 is made of metal, and the top of the bellows 27 is provided with a threaded sealing cover.

[0059] By the above scheme, the dry ice in the interior of the bellows 27 needs to be taken out after each work, so that the dry ice is prevented from being long-term in the bellows 27, and the telescopic part of the bellows 27 is prevented from being damaged, and the dry ice can be placed again before each work;

[0060] And the threaded sealing cover on the top can prolong the time of the dry ice being stored in the interior of the bellows 27 and the working time of the device.

[0061] Working principle and use process of the present application:

[0062] When the worker works on the platform, the device does not bear the weight of the worker and is in a relaxed state, when the worker pulls one of the lock catch two 3 to be folded, so that it is separated from the limiting groove two 25, the steel strand 4 can enter the inside of the lock catch two 3 through the gap between the opening of the lock catch two 3 and the limiting plate 24, the other lock catch two 3 is also operated, at this time, the opening of the lock catch two 3 is blocked by the limiting plate 24, and the openings of the two lock catch two 3 are staggered, which makes the steel strand 4 more difficult to separate from the device, the safety rope 5 is sequentially penetrated through the lock catch one 14 and the lock catch two 3, and then the safety rope 5 is installed on the high-altitude operation safety clothes according to the process flow;

[0063] When the worker loses his balance or suddenly falls down, his weight will inevitably tighten the safety rope 5 and pull the lock catch one 14 and the protection box 11 through the safety rope 5, at this time, the downward impact force applied by the worker falling down will drive the guide block 12 to descend, and the two inclined surfaces directly press the two steel bars 22 and make the steel bars 22 deform.

[0064] The lowering of the protection box 11 will also turn the upper ends of the two lock catch twos 3 outwardly, and will also press the steel strand 4 against the roller 62. The protection box 11 will also lower the toothed plate 64 and engage the gear 65. At this time, the toothed plate 64 and the roller 62 cannot work, and the steel strand 4 cannot drive the roller 62 to roll. The friction force generated by the lock catch two 3 pressing the steel strand 4 can prevent the lock catch two 3 from sliding on the steel strand 4 by itself;

[0065] The lower ends of the two lock catch twos 3 will be folded towards each other, and will be limited by the positioning rod 31, pressing the safety rope 5 against the bottom of the protection box 11. The impact force generated by the worker falling can be distributed at each contact point of the lock catch two 3 pressing the safety rope 5.

[0066] The lowering of the protection box 11 will also press the dry ice inside the corrugated pipe 27 to release cold air, and the outlet end of the corrugated pipe 27 will guide the cold air to flow onto the roller 62, so as to avoid overheating due to friction.

[0067] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other present or future technologies can provide. For example, and without limitation, technical elements, technical methods, currently known or later developed, can be employed without departing from the spirit of the present application. Where the context requires, "includes" or "including", or any other variant thereof, will be understood to cover a non-exclusive inclusion, such that items listed after such a term are not an exhaustive list of items that can be included.

[0068] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fixed fall arrest device for high altitude work with a flexible wire rope guide, comprising a wire rope (4) and a safety line (5), characterized in that, It also includes trigger assembly (1), trigger assembly (1) includes protective box (11), the bottom of protective box (11) is respectively fixed with a lock catch one (14) at both ends, the inside of protective box (11) is fixed with guide block (12), the inside of protective box (11) is installed with several guide rods (13); The fixed steel strand flexible guide rail anti-falling device further comprises a limiting assembly (2) and two lock catch two (3). The limiting assembly (2) comprises a limiting frame (21) slidably installed in the inside of the protective box (11), and two steel bars (22) in contact with the guide block (12) are symmetrically installed on the limiting frame (21). The lock catch two (3) is respectively divided into upper and lower two parts, the upper end of the lock catch two (3) is provided with an opening and is in a staggered state, the lower end of the two lock catch two (3) is curved and the curved parts are staggered, and the lock catch two (3) is provided with a positioning rod (31) on the curved part. The lock catch two (3) movably penetrates the protective box (11), the lock catch two (3) is hung on the steel strand (4) through the opening at the upper end, and the safety rope (5) penetrates the gap between the lock catch one (14), the lock catch two (3) and the positioning rod (31) and another lock catch one (14) in sequence. The fixed steel strand flexible guide rail anti-falling device further comprises a locking assembly (6) provided on the protective box (11). The locking assembly (6) comprises a support shaft (61) movably penetrating the top of the protective box (11) and welded to the limiting frame (21), a roller shaft (62) rotatably connected to the support shaft (61), the steel strand (4) in contact with the roller shaft (62), a support frame (23) provided with a speed reduction gear set (63) on the side away from the support shaft (61), and the roller shaft (62) is in transmission connection with the input end of the speed reduction gear set (63). The protective box (11) is lowered to drive the upper end of the two lock catch two (3) to fold outward through the guide rod (13).

2. The overhead work fixed-type steel strand flexible rail anti-falling device according to claim 1, characterized in that: The protective box (11), the guide block (12), the guide rod (13) and the lock catch one (14) are all made of titanium alloy, and the surface of the guide block (12) in contact with the two steel bars (22) is inclined. The trigger assembly (1) further comprises a plurality of limiting grooves one (15) formed in the protective box (11), and the two lock catch two (3) movably penetrates each limiting groove one (15).

3. The overhead fixed steel wire rope flexible rail fall arrest device of claim 1, wherein: The limiting assembly (2) further comprises a support frame (23) installed on both sides of the limiting frame (21), and each support frame (23) is provided with a limiting plate (24).

4. The overhead work fixed-type steel strand flexible rail anti-falling device according to claim 3, characterized in that: The two limiting plates (24) are staggered, and the ends of the openings of the two lock catch two (3) are movably arranged in each limiting groove two (25).

5. The overhead work fixed-type steel strand flexible rail fall arrest device according to claim 4, characterized in that: The locking assembly (6) further comprises a gear (65) in transmission connection with the output end of the speed reduction gear set (63), a toothed plate (64) is installed on the side of the protective box (11) close to the speed reduction gear set (63), and the toothed plate (64) is matched with the gear (65).

6. The overhead work fixed-type steel strand flexible rail anti-falling device according to claim 5, characterized in that: The limiting assembly (2) further comprises two springs (26), the two ends of the top of the limiting frame (21) are elastically connected with the interior of the protection box (11) through the two springs (26) respectively, one bellows (27) is fixedly arranged at the two ends of the top of the limiting frame (21) respectively, dry ice is placed in the bellows (27), and the air outlet ends of the bellows (27) face the outer periphery of the roller shaft (62).

7. The overhead work fixed-type steel strand flexible rail fall arrest device according to claim 6, characterized in that: The bottom of the bellows (27) is made of metal, and a threaded sealing cover is arranged at the top of the bellows (27).

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