Safety protection device for slope maintenance operation

Abstract

The utility model provides a safety protection device for slope maintenance operation, which comprises a protection waistband, a guardrail connecting piece and a telescopic device, the telescopic device comprises a shell, a safety rope and a rotary drum, the rotary drum is arranged in the shell, and two ends of the rotary drum are respectively and rotatably connected with the inner wall of the top and the inner wall of the bottom of the rotary drum through coil springs. A rope outlet is formed in one side of the shell, the outer wall of the side, opposite to the rope outlet, of the shell is connected with the protective waistband through a connecting rope, one end of the safety rope is wound around the outer wall of the rotary drum, the other end of the safety rope penetrates through the rope outlet to extend out of the shell, and the end, located outside the shell, of the safety rope is connected with the guardrail connecting piece. A safety switch used for locking / loosening the safety rope is arranged on the outer wall of the shell. According to the device, the safety rope can be released, recycled and fixed based on the moving distance of a worker, so that the worker carries out moving operation in a fan-shaped area formed by taking the extending length of the safety rope as the radius. According to the utility model, the safety of operators is guaranteed, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of safety protection technology in the highway maintenance industry, specifically to a safety protection device for slope maintenance operations. Background Technology

[0002] During routine maintenance work on highway embankment platforms, such as mowing, water damage repair, and roadbed inspection, highway maintenance workers face severe safety hazards. Highway embankment slopes are mostly steep slopes with a large gradient, constructed of soil or masonry, with smooth surfaces and a lack of stable footholds. Manual maintenance work on such slopes carries extremely high safety risks. Workers not only have to work on steep platforms but also must constantly be aware of their footing to prevent slipping and falling to the bottom of the slope. Especially during summer mowing operations, maintenance workers carrying mowing machines are highly susceptible to injury if they slip and fall.

[0003] This steep working environment necessitates that workers prioritize their own safety while operating the equipment. This not only increases safety risks but also reduces work efficiency. Therefore, a safety protection device is urgently needed to ensure worker safety and improve work efficiency. Utility Model Content

[0004] To address the problems in the background art, a safety protection device for slope maintenance operations is provided, comprising a protective belt, a guardrail connector, and a telescopic device. The telescopic device includes a housing, a safety rope, and a rotating drum. The rotating drum is disposed inside the housing, and its two ends are rotatably connected to the inner walls of the top and bottom of the drum via coil springs, respectively. A rope outlet is provided on one side of the housing, and the outer wall of the housing opposite to the rope outlet is connected to the protective belt via a connecting rope. One end of the safety rope is wound around the outer wall of the rotating drum, and the other end of the safety rope extends through the rope outlet to the outside of the housing. The end of the safety rope outside the housing is connected to the guardrail connector. A safety switch for locking / releasing the safety rope is provided on the outer wall of the housing.

[0005] Preferably, the safety switch includes a fixed block and a movable block. The fixed block is located on one side of the rope outlet and is fixedly connected to the housing. A compression groove is formed on the side of the fixed block near the rope outlet. Multiple sliding rods are fixed on the side of the fixed block near the rope outlet, and the multiple sliding rods are symmetrically distributed above and below the compression groove. A screw is rotatably provided on the fixed block, and the length direction of the screw is consistent with that of the sliding rod. The movable block is slidably disposed on the sliding rod. A compression block matching the position and shape of the compression groove is provided on the side of the movable block near the fixed block. Threaded holes matching the screw are provided on the compression block and the movable block. The screw is threadedly connected to the compression block and the movable block through the threaded holes. The rope outlet is located above or below the screw.

[0006] Preferably, a limiting plate is fixed to the end of the slide rod away from the fixed block, the end of the screw away from the fixed block is rotatably connected to the limiting plate, the other end of the screw extends to the outside of the fixed block away from the rope outlet, and the moving block is located between the limiting plate and the fixed block.

[0007] Preferably, a knob is fixedly connected to the end of the screw away from the limiting plate.

[0008] Preferably, the inner wall of the top and the inner wall of the bottom of the housing are respectively fixed with end plates, and each of the two end plates is provided with a receiving cylinder, and the coil spring is provided inside the receiving cylinder;

[0009] A rotating shaft is fixed at the center of the rotating cylinder. The two ends of the rotating shaft extend from the top and bottom of the rotating cylinder, respectively. The two ends of the rotating shaft are rotatably connected to the two end plates. The rotating shaft is located in the receiving cylinder. The outer end of the coil spring is fixedly connected to the receiving cylinder, and the inner end of the coil spring is fixedly connected to the rotating shaft.

[0010] Preferably, the housing is provided with a tension roller, which is located on the side of the drum near the rope outlet.

[0011] Preferably, two limiting rollers are provided inside the housing near the rope outlet, and the rope outlet is located between the two limiting rollers.

[0012] Preferably, the two ends of the connecting rope are respectively connected to the protective belt and the shell through a connector. The connector includes a rotating shaft and a fixed post. The two fixed posts are respectively fixedly connected to the outer wall of the shell and the protective belt. The rotating shaft is rotatably connected to the fixed post. A connecting ring is fixed on the rotating shaft. The connecting rope is fixedly connected to the connecting ring.

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

[0014] This utility model features a protective belt that connects to the human body and a guardrail connector that connects to the guardrail, enabling workers to be safely positioned and preventing falls during maintenance work. This significantly improves worker safety during maintenance operations. Furthermore, the safety rope connecting the protective belt and the guardrail connector can be adjusted in length using a telescopic device and a safety switch, thereby regulating the worker's work area and enhancing the flexibility of maintenance work. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the telescopic device of this utility model;

[0017] Figure 3This is a schematic diagram of the overall structure of the rotating drum and end cap of this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the end cap, coil spring, and shaft connection of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the safety switch of this utility model;

[0020] Figure 6 This is a schematic diagram of the fixing block structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the movable block structure of this utility model;

[0022] Figure 8 for Figure 1 Enlarged structural diagram at point A in the middle.

[0023] The following are the labeling elements in the diagram: 1. Guardrail connector; 2. Housing; 3. Protective belt; 4. Safety switch; 41. Fixing block; 411. Extrusion groove; 42. Moving block; 421. Sliding hole; 422. Extrusion block; 423. Threaded hole; 43. Limiting plate; 5. Safety rope; 6. Connector; 61. Fixing post; 62. Rotating shaft; 63. Connecting ring; 7. Connecting rope; 8. Sliding rod; 9. Screw; 10. Knob; 11. End plate; 12. Receiving cylinder; 13. Rotating cylinder; 14. Rotating shaft; 15. Coil spring; 16. Limiting roller; 17. Tensioning roller. Detailed Implementation

[0024] To make this utility model clearer and more understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the given embodiments are only one of the implementation methods and do not represent all embodiments.

[0025] In this article, terms such as "inner," "outer," "upper," and "lower" are established based on the positional relationships shown in the attached drawings. Depending on the attached drawings, the corresponding positional relationships may also change. Therefore, they should not be interpreted as an absolute limitation on the scope of protection.

[0026] Combined with appendix Figure 1 - Appendix Figure 8A safety protection device for slope maintenance operations includes a protective belt 3, a guardrail connector 1, and a telescopic device. The telescopic device includes a housing 2, a safety rope 5, and a rotating drum 13. The rotating drum 13 is disposed inside the housing 2. Both ends of the rotating drum 13 are rotatably connected to the inner walls of the top and bottom of the rotating drum 13 via coil springs 15, respectively. A rope outlet is provided on one side of the housing 2. The outer wall of the housing 2 opposite to the rope outlet is connected to the protective belt 3 via a connecting rope 7. One end of the safety rope 5 is wrapped around the outer wall of the rotating drum 13, and the other end of the safety rope 5 extends through the rope outlet to the outside of the housing 2. The end of the safety rope 5 located outside the housing 2 is connected to the guardrail connector 1. A safety switch 4 for locking / releasing the safety rope 5 is provided on the outer wall of the housing 2.

[0027] Specifically, the protective belt 3 can be made of a flexible material with elasticity, suitable for people of different body sizes; the guardrail connector 1 can use O-rings or buckles. The protective belt 3 only needs to be able to connect / detach from the body, and the guardrail connector 1 needs to be able to connect / detach from the guardrail; their structural forms are not limited to the above and will not be elaborated upon here.

[0028] Specifically, the safety switch 4 includes a fixed block 41 and a movable block 42. The fixed block 41 is located on one side of the rope outlet and is fixedly connected to the housing 2. The fixed block 41 has a compression groove 411 on the side near the rope outlet. Multiple sliding rods 8 are fixed on the side of the fixed block 41 near the rope outlet. The multiple sliding rods 8 are symmetrically distributed above and below the compression groove 411. A screw 9 is rotatably mounted on the fixed block 41. The length direction of the screw 9 is consistent with that of the sliding rod 8. The movable block 42 is slidably mounted on the sliding rod 8. The side of the movable block 42 near the fixed block 41 has a compression block 422 that matches the position and shape of the compression groove 411. The compression block 422 and the movable block 42 have threaded holes 423 that match the screw 9. The screw 9 is threadedly connected to the compression block 422 and the movable block 42 through the threaded holes 423. The rope outlet is located above or below the screw 9.

[0029] The safety rope 5, located between the rope outlet and the guardrail connector 1, is situated between the compression block 422 and the compression groove 411. To lock the safety rope 5, simply rotate the screw 9. The moving block 42 moves towards the compression groove 411 under the action of the thread. The compression block 422 pushes the safety rope 5 until it is compressed and fixed by the compression block 422 and the compression groove 411, thus securing the safety rope 5. To release the safety rope 5, simply rotate the screw 9 in the opposite direction to disengage the compression block 422 from the compression groove 411.

[0030] More specifically, in order to improve the fixing effect of the compression block 422 and the compression groove 411 on the safety rope 5, anti-slip textures or protrusions can be provided on the outer wall of the compression block 422 and the inner wall of the compression groove 411 to improve the friction effect between the compression block 422 and the compression groove 411 and the safety rope 5, thereby improving the fixing effect.

[0031] There are four slide rods 8, with two slide rods above and two below the extrusion groove 411, and the four slide rods 8 are symmetrically distributed in pairs. The slide rods 8 can improve the stability of the moving plate. The moving plate is provided with sliding holes 421 corresponding to the number of slide rods 8. The moving plate is slidably connected to the slide rods 8 through the cooperation of the slide rods 8 and the slider.

[0032] Specifically, a limiting plate 43 is fixed to one end of the slide rod 8 away from the fixing block 41, and the end of the screw 9 away from the fixing block 41 is rotatably connected to the limiting plate 43. The other end of the screw 9 extends to the outer side of the fixing block 41 away from the rope outlet. The moving block 42 is located between the limiting plate 43 and the fixing block 41. The limiting plate 43 prevents the moving plate from detaching from the slide rod 8 and provides an installation position for the screw 9.

[0033] Specifically, a knob 10 is fixedly connected to the end of the screw 9 away from the limiting plate 43. The screw 9 is rotated by rotating the knob 10, which is convenient for the user to operate.

[0034] Specifically, the top inner wall and bottom inner wall of the housing 2 are respectively fixed with end plates 11, and the two end plates 11 are provided with receiving cylinders 12 on opposite sides, and the coil springs 15 are provided inside the receiving cylinders 12;

[0035] The rotating cylinder 13 has a rotating shaft 14 fixed at its center. The two ends of the rotating shaft 14 extend out from the top and bottom of the rotating cylinder 13, respectively. The two ends of the rotating shaft 14 are rotatably connected to the two end plates 11, respectively. The rotating shaft 14 is located in the accommodating cylinder 12. The outer end of the coil spring 15 is fixedly connected to the accommodating cylinder 12, and the inner end of the coil spring 15 is fixedly connected to the rotating shaft 14.

[0036] Specifically, a tensioning roller 17 is provided inside the housing 2, and the tensioning roller 17 is located on the side of the rotating drum 13 near the rope outlet. The tensioning roller 17 tensions the safety rope 5, thereby improving the stability of the movement of the safety rope 5.

[0037] Specifically, two limiting rollers 16 are provided inside the housing 2 near the rope outlet, and the rope outlet is located between the two limiting rollers 16. The end of the safety rope 5 away from the rotating drum 13 passes between the two limiting rollers 16 and then extends from the rope outlet to the outside of the housing 2. The limiting rollers 16 can improve the smoothness of the movement of the safety rope 5 at the rope outlet and avoid direct contact and friction between the safety rope 5 and the edge of the rope outlet.

[0038] Specifically, the two ends of the connecting rope 7 are respectively connected to the protective waist belt 3 and the housing 2 through a connector 6. The connector 6 includes a rotating shaft 62 and a fixing post 61. The two fixing posts 61 are respectively fixedly connected to the outer wall of the housing 2 and the protective waist belt 3. The rotating shaft 62 is rotatably connected to the fixing post 61. A connecting ring 63 is fixed on the rotating shaft 62. The connecting rope 7 is fixedly connected to the connecting ring 63.

[0039] In use, the worker wears the protective waist belt 3 around their waist, and then connects the safety rope 5 to the guardrail via the guardrail connector 1. After connection, the worker can move away from the guardrail connector 1 and pull out the safety rope 5. Based on the designated maintenance work distance and area, the worker pulls the safety rope 5 to a suitable length and uses the safety switch 4 to lock the safety rope 5, fixing the length of the safety rope 5 pulled outside the housing 2. At this time, the area where the worker can move is defined as a circle with the guardrail connector 1 as the center and the length of the safety rope 5 outside the housing 2 as the radius. During the pulling out of the safety rope 5, the rotating drum 13 rotates, and the coil spring 15 tightens.

[0040] Once the maintenance work in one area is completed, the worker can release the safety rope 5 via the safety switch 4 and gradually move towards the location of the guardrail connector 1. At this time, the coil spring 15 drives the rotating drum 13 to rotate in the opposite direction, retracting the part of the safety rope 5 outside the housing 2 into the housing 2. After the worker moves to the guardrail connector 1, the guardrail connector 1 can be removed from the guardrail, and the connection position between the guardrail connector 1 and the guardrail can be changed to carry out the maintenance work in the next area.

[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will be able to make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety protection device for slope maintenance work, characterized by: The utility model provides a safety waistband, guardrail connecting piece and telescopic device, the telescopic device includes the shell (2), safety rope (5) and rotary drum (13), the rotary drum (13) is arranged in the shell (2), and both ends of rotary drum (13) are rotatably connected with the top inner wall and the bottom inner wall of rotary drum (13) through coil spring (15) respectively, one side of the shell (2) is equipped with rope line outlet, and the outer wall of the opposite side of shell (2) is connected with safety waistband (3) through connecting rope (7), one end of safety rope (5) is wound on the outer wall of rotary drum (13), and the other end of safety rope (5) extends to the outside of shell (2) through rope line outlet, and the end of safety rope (5) located outside shell (2) is connected with guardrail connecting piece (1), and the outer wall of shell (2) is equipped with safety switch (4) for locking / loosing safety rope (5).

2. The safety protection device for slope maintenance work according to claim 1, characterized in that: The safety switch (4) includes a fixed block (41) and a moving block (42), the fixed block (41) is located on one side of the rope line outlet, and the fixed block (41) is fixedly connected with the shell (2), the side of the fixed block (41) close to the rope line outlet is provided with an extrusion groove (411), a plurality of slide rods (8) are fixed to the side of the fixed block (41) close to the rope line outlet, the plurality of slide rods (8) are symmetrically distributed above and below the extrusion groove (411), a screw rod (9) is rotatably arranged on the fixed block (41), the length direction of the screw rod (9) is consistent with that of the slide rod (8), the moving block (42) is slidably arranged on the slide rod (8), and the side of the moving block (42) close to the fixed block (41) is provided with an extrusion block (422) matched with the position and shape of the extrusion groove (411), the extrusion block (422) and the moving block (42) are provided with screw holes (423) matched with the screw rod (9), and the screw rod (9) is threadedly connected with the extrusion block (422) and the moving block (42) through the screw holes (423), and the rope line outlet is above or below the screw rod (9).

3. The safety protection device for slope maintenance work according to claim 2, characterized in that: The end of the slide rod (8) away from the fixed block (41) is fixedly connected with a limiting plate (43), the end of the screw rod (9) away from the fixed block (41) is rotatably connected with the limiting plate (43), and the other end of the screw rod (9) extends to the outside of the side of the fixed block (41) away from the rope line outlet, and the moving block (42) is located between the limiting plate (43) and the fixed block (41).

4. The safety protection device for slope maintenance work according to claim 3, characterized in that: The end of the screw rod (9) away from the limiting plate (43) is fixedly connected with a knob (10).

5. The safety protection device for slope maintenance work according to claim 1, characterized in that: The top inner wall and the bottom inner wall of the shell (2) are respectively fixedly connected with end plates (11), the opposite sides of the two end plates (11) are both provided with accommodating cylinders (12), and the coil springs (15) are arranged in the accommodating cylinders (12); A rotating shaft (14) is fixedly arranged in the center of the rotary drum (13), the rotating shaft (14) extends out of the top and the bottom of the rotary drum (13) at both ends, the rotating shaft (14) is rotatably connected with the two end plates (11) at both ends, the rotating shaft (14) is located in the accommodating cylinder (12), the outer end of the coil spring (15) is fixedly connected with the accommodating cylinder (12), and the inner end of the coil spring (15) is fixedly connected with the rotating shaft (14).

6. The safety protection device for slope maintenance work according to claim 1, characterized in that: The shell (2) is internally provided with a tension roller (17), which is located at one side of the rotating drum (13) close to the rope outlet.

7. The safety protection device for slope maintenance work according to claim 6, characterized in that: The shell (2) is internally provided with two limiting rollers (16) close to the rope outlet, and the rope outlet is located between the two limiting rollers (16).

8. The safety protection device for slope maintenance work according to claim 1, characterized in that: The connecting rope (7) is connected with the protective waistband (3) and the shell (2) through a connecting piece (6) at two ends respectively, the connecting piece (6) comprises a rotating shaft (62) and a fixed column (61), the two fixed columns (61) are fixedly connected with the outer wall of the shell (2) and the protective waistband (3) respectively, the rotating shaft (62) is rotatably connected with the fixed column (61), and the connecting ring (63) is fixedly connected with the rotating shaft (62). The connecting rope (7) is connected with the protective waistband (3) and the shell (2) through a connecting piece (6) at two ends respectively, the connecting piece (6) comprises a rotating shaft (62) and a fixed column (61), the two fixed columns (61) are fixedly connected with the outer wall of the shell (2) and the protective waistband (3) respectively, the rotating shaft (62) is rotatably connected with the fixed column (61), and the connecting ring (63) is fixedly connected with the rotating shaft (62).

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