A rope self-locking device with two-stage opening and closing structure

Abstract

The utility model discloses a kind of two-section type opening and closing structure's rope self-locking device, including shell, rotating plate, brake wheel assembly and button, the rotating plate, brake wheel assembly are fixedly connected with shell through fixed shaft one, the rotating plate, brake wheel assembly can rotate around fixed shaft one, the upper side of the shell is provided with button mounting hole, button mounting hole is installed compression spring and button from below to above in sequence, the front side of the rotating plate is provided with positioning part one and positioning part two, the positioning part one is set as arc slot, the positioning part two is set as round hole.Compared with prior art, by setting the opening structure of "press-rotation", the opening operation is comfortable, the internal rope is not possible to escape in the fully closed state of rotating plate, the rotating plate has two positioning parts, which avoids the possibility of misoperation and increases the safety of operation.

Description

Technical Field

[0001] This utility model relates to the field of fall protection technology for high-altitude operations, and in particular to a rope self-locking device with a two-stage opening and closing structure. Background Technology

[0002] At sites such as wind turbine towers, power grid towers, high-rise buildings, bridge piers, and mountain climbing, there are many temporary rope work passages with a vertical orientation or an inclination angle of no more than 15°, which require the use of rope self-locking devices for safety protection.

[0003] Most existing rope self-locking devices rely solely on a torsion spring for locking, which can easily lead to insensitive locking or jamming. Speed-triggered self-locking devices are increasingly available on the market, but these often feature sheet metal housings and are typically open-type bodies, posing a risk of accidental rope slippage. This type of rope mounting structure is not reliable enough. Utility Model Content

[0004] The purpose of this utility model is to provide a rope self-locking device with a two-stage opening and closing structure, which can overcome the shortcomings of the existing rope self-locking device, such as unreliable rope mounting structure and easy jamming when workers go up or down.

[0005] To achieve the above objectives, a rope self-locking device with a two-stage opening and closing structure is provided, including a housing, a rotating plate, a brake wheel assembly, and a button. The rotating plate and the brake wheel assembly are fixedly connected to the housing via a fixed shaft. Both the rotating plate and the brake wheel assembly can rotate around the fixed shaft. A button mounting hole is provided on the upper side of the housing. A compression spring and a button are installed sequentially from bottom to top in the button mounting hole. A positioning part one and a positioning part two are provided on the front side of the rotating plate. The positioning part one is an arc-shaped groove, and the positioning part two is a round hole.

[0006] According to the rope self-locking device with a two-stage opening and closing structure, the brake wheel assembly includes a rolling wheel, a brake arm, and a fixed arm. The rolling wheel is movably connected to the brake arm and the fixed arm via a fixed shaft. The ends of the brake arm and the fixed arm are fixedly connected by a fixed collar. A torsion spring is installed on the outer side of the fixed collar.

[0007] According to the rope self-locking device with a two-stage opening and closing structure, the button is provided with a slot, and the compression spring and the button are fixed in the button mounting hole by screws passing through the slot.

[0008] According to the rope self-locking device with a two-stage opening and closing structure, the outer side of the housing is fixedly connected to connecting plate one and connecting plate two via a fixed shaft three. Connecting plate one and connecting plate two can rotate around the fixed shaft three, and the ends of connecting plate one and connecting plate two are fixedly connected via the fixed shaft two.

[0009] According to the rope self-locking device with a two-stage opening and closing structure, a brake block is provided inside the rolling wheel. The brake block has a guide post and a meshing tooth. A limit plate is provided on the outside of the brake block. A guide groove and an annular recess are provided on the outside of the limit plate. The guide groove accommodates the guide post. An annular elastic element is provided in the annular recess.

[0010] According to the rope self-locking device with a two-stage opening and closing structure, a knob is provided on the housing.

[0011] This utility model has the following advantages: Compared with the prior art, by setting a "press-rotate" opening structure, the opening operation is more comfortable, the internal rope has no possibility of coming out when the rotating plate is fully closed, and the rotating plate has two positioning parts, which avoids the possibility of misoperation and increases the safety of operation. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0013] Figure 1 This is a schematic diagram of the overall structure of a rope self-locking device with a two-section opening and closing structure according to an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the first stage opening and closing of a rope self-locking device with a two-stage opening and closing structure according to an embodiment of the present utility model;

[0015] Figure 3 This is a schematic diagram of a rope self-locking device with a two-stage opening and closing structure when fully opened and closed, according to an embodiment of the present utility model.

[0016] Figure 4 This is an exploded view of a rope self-locking device with a two-stage opening and closing structure according to an embodiment of the present utility model;

[0017] Figure 5 This is an exploded view of the brake wheel assembly of a rope self-locking device with a two-stage opening and closing structure according to an embodiment of the present invention.

[0018] Legend:

[0019] 1. Housing; 11. Stepped washer; 12. Compression spring; 13. Screw; 14. Fixing component; 101. Rope receiving groove; 102. Limiting groove; 103. Button mounting hole; 2. Rotating plate; 201. Positioning part one; 202. Positioning part two; 3. Button; 301. Slot; 4. Brake wheel assembly; 41. Rolling wheel; 411. Receiving part; 412. Engaging inclined surface; 42. Brake block; 421. Guide post; 422. 43. Meshing teeth; 431. Limiting plate; 432. Annular groove; 433. Guide groove; 44. Annular elastic element; 45. Washer; 46. Brake arm; 461. Arm ring; 462. Through hole one; 47. Fixed shaft four; 48. Fixed arm; 49. Torsion spring; 50. Fixed collar; 5. Toggle switch; 501. Cam part; 6. Fixed shaft one; 7. Fixed shaft two; 8. Connecting plate one; 9. Connecting plate two; 10. Fixed shaft three. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] One embodiment of this utility model is as follows: Figure 1 As shown, the rope self-locking device includes a housing 1, a rotating plate 2, a brake wheel assembly 4, and a button 3. The rotating plate 2 and the brake wheel assembly 4 are fixedly connected to the housing 1 via a fixed shaft 6. Both the rotating plate 2 and the brake wheel assembly 4 can rotate around the fixed shaft 6.

[0022] One embodiment of this utility model is as follows: Figure 4 As shown, a button mounting hole 103 is provided on the upper side of the housing 1, and a compression spring 12 and a button 3 are installed in the button mounting hole 103 from bottom to top.

[0023] One embodiment of this utility model is as follows: Figure 2 , Figure 3 As shown, the front side of the rotating plate 2 is provided with a positioning part 1 201 and a positioning part 2 202. The positioning part 1 201 is an arc-shaped groove, and the positioning part 2 202 is a round hole. The diameter of the round hole is larger than the diameter of the button 3. The button 3 is provided with a slot 301. The compression spring 12 and the button 3 are fixed in the button mounting hole 103 by screws 13 passing through the slot 301.

[0024] When the rope self-locking device needs to be opened, the operator presses button 3 and rotates the rotating plate 2 downwards until the rotating plate 2 reaches the first stage of opening / closing (e.g., ...). Figure 2At this point, the positioning part 201 is in contact with the cylindrical position of button 3. If button 3 is released at this time, the rotating plate 2 cannot continue to rotate downwards. If button 3 is pressed down, the rotating plate 2 continues to rotate downwards and is fully opened (e.g.). Figure 3 When the rope self-locking device is installed on the rope and needs to be locked, after rotating the rotating plate 2 upward, the front end of the rotating plate 2 returns to the limiting groove 102. Under the action of the compression spring 12, the button 3 is automatically lifted, thereby restricting the movement of the rotating plate 2 and forming a closed space. The rope is located in the rope receiving groove 101, so there is no possibility of the rope self-locking device coming off the rope.

[0025] In one embodiment of this utility model, the brake wheel assembly 4 includes a rolling wheel 41, a brake support arm 46, and a fixed support arm 48. The rolling wheel 41 is movably connected to the brake support arm 46 and the fixed support arm 48 via a fixed shaft 47. The ends of the brake support arm 46 and the fixed support arm 48 are fixedly connected by a fixed collar 50. The fixed collar 50 is a stepped shaft with a through hole in the middle for the fixed shaft 6 to pass through. The thin shaft part at one end of the fixed collar 50 is installed inside the through hole 462 on the brake support arm 46. A torsion spring 49 is installed on the fixed collar 50.

[0026] The outer side of the housing 1 is fixedly connected to the connecting plate 8 and the connecting plate 9 via the fixed shaft 3 10. A stepped washer 11 is provided between the connecting plate 8, the connecting plate 9 and the fixed shaft 3 10. The connecting plate 8 and the connecting plate 9 can rotate around the fixed shaft 3 10. The ends of the connecting plate 8 and the connecting plate 9 are fixedly connected via the fixed shaft 2 7.

[0027] In one embodiment of this utility model, a knob 5 is provided on the housing 1. The front end of the knob 5 has a cam portion 501. The knob 5 is fixed to the housing 1 by a fixing member 14. When the knob 5 is pushed, it can drive the brake wheel assembly 4 to move forward, so as to achieve a tighter contact between the rolling wheel 41 and the rope.

[0028] In one embodiment of this utility model, a brake block 42 is provided inside the rolling wheel 41. The brake block 42 has a guide post 421 and a meshing tooth 422. A limit plate 43 is provided on the outside of the brake block 42. A guide groove 432 and an annular groove 431 are provided on the outside of the limit plate 43. The guide groove 432 accommodates the guide post 421. An annular elastic element 44 is provided in the annular groove 431. A washer 45 is provided on the outside of the annular elastic element 44.

[0029] During normal walking, the annular elastic element 44 binds the guide post 421 of the brake block 42, so that the brake block 42 is located in the receiving part 411. There is sufficient gap between the brake block 42 and the inner wall of the support ring 461 of the brake arm 46, so it will not lock and the rolling wheel 41 can rotate normally. When a fall occurs, the speed increases and the centrifugal force of the brake block 42 increases, which overcomes the binding force of the annular elastic element 44. Under the action of centrifugal force, the brake block 42 moves outward. The meshing teeth 422 on the brake block 42 mesh with the meshing inclined surface 412. When the brake block 42 contacts the inner wall of the support ring 461 of the brake arm 46, the rolling wheel 41 is locked. At this time, the rolling wheel 41 no longer rotates, and the rope self-locking device also achieves self-locking on the rope.

[0030] In summary, this utility model achieves a "press-rotate" opening method by setting a two-stage opening and closing structure, which makes the opening operation more comfortable and ensures that the internal ropes have no possibility of coming out when the rotating plate 2 is fully closed.

[0031] The rotating plate 2 has two positioning parts, which avoids the possibility of misoperation and increases operational safety. It also has a speed-type locking structure, which solves the technical problem of jamming that easily occurs when moving up or down with the staff.

[0032] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A rope self-locking device with a two-stage opening and closing structure, comprising a housing (1), a rotating plate (2), a brake wheel assembly (4), and a button (3), characterized in that, The rotating plate (2) and the brake wheel assembly (4) are fixedly connected to the housing (1) via a fixed shaft (6). Both the rotating plate (2) and the brake wheel assembly (4) can rotate around the fixed shaft (6). The upper side of the housing (1) is provided with a button mounting hole (103), and a compression spring (12) and a button (3) are installed in the button mounting hole (103) from bottom to top. The front side of the rotating plate (2) is provided with a positioning part one (201) and a positioning part two (202). The positioning part one (201) is configured as an arc groove, and the positioning part two (202) is configured as a round hole.

2. A rope self-locking device with a two-stage opening and closing structure according to claim 1, characterized in that, The brake wheel assembly (4) includes a rolling wheel (41), a brake arm (46), and a fixed arm (48). The rolling wheel (41) is movably connected to the brake arm (46) and the fixed arm (48) via a fixed shaft (47). The ends of the brake arm (46) and the fixed arm (48) are fixedly connected via a fixed collar (50). A torsion spring (49) is installed on the outer side of the fixed collar (50).

3. A rope self-locking device with a two-stage opening and closing structure according to claim 1, characterized in that, The button (3) has a slot (301), and the compression spring (12) and the button (3) are fixed in the button mounting hole (103) by screws (13) passing through the slot (301).

4. A rope self-locking device with a two-stage opening and closing structure according to claim 1, characterized in that, The outer side of the housing (1) is fixedly connected to the connecting plate one (8) and the connecting plate two (9) by the fixed shaft three (10). The connecting plate one (8) and the connecting plate two (9) can rotate around the fixed shaft three (10). The ends of the connecting plate one (8) and the connecting plate two (9) are fixedly connected by the fixed shaft two (7).

5. A rope self-locking device with a two-stage opening and closing structure according to claim 2, characterized in that, The rolling wheel (41) is provided with a brake block (42) inside. The brake block (42) has a guide post (421) and a meshing tooth (422). A limit plate (43) is provided on the outside of the brake block (42). A guide groove (432) and an annular groove (431) are provided on the outside of the limit plate (43). The guide groove (432) accommodates the guide post (421). An annular elastic element (44) is provided in the annular groove (431).

6. A rope self-locking device with a two-stage opening and closing structure according to claim 1, characterized in that, A knob (5) is provided on the housing (1).

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