A distance limiting protection device

Abstract

This invention relates to the field of protective devices for minibuses, specifically a spacing restriction protection device, which includes a slide rail, a wire rope, a cable gripper, a roller mounting bracket, a crankshaft, a pawl, a support shaft b, a ratchet, a cam, a support shaft c, a stop bar, and a connecting pin. The roller mounting bracket is located on the back of the slide rail, and a support shaft a is mounted on the roller mounting bracket. A roller is mounted on the support shaft a, and the roller rotates in cooperation with the wire rope. The end of the support shaft a passes through the slide rail and connects to the crankshaft. The pawl is mounted on the crankshaft and cooperates with the ratchet. The support shaft b is rotatably located on the front of the slide rail, and the ratchet is mounted on the support shaft b. The cam is mounted on the support shaft b. The support shaft c is rotatably located on the front of the slide rail, and from the inside out, the support shaft c has a hook, a swing plate, and a cover plate, with a limit bar mounted on the swing plate. This invention has good safety, reliability, high inventiveness, and strong mechanical component linkage, effectively solving the miners' need for safe spacing when riding in the vehicle.

Description

Technical Field

[0001] This invention relates to the field of monkey car protection devices, and more particularly to a spacing restriction protection device. Background Technology

[0002] Previously, after the aerial passenger transport device (monkey car) system was started, the PLC would calculate the time it took for passengers to pass through by detecting the time through the sensors. When the difference was less than the safety set value, the system would stop and be protected by electrical control. The electrical control had certain potential failure risks, and there was a risk that the monkey cars might collide if the distance between them was too small. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the background art by proposing a spacing restriction and protection device for mechanical structures.

[0004] The technical solution of the present invention: a spacing limiting protection device, comprising a slide, a wire rope, a cable clamp, a roller mounting bracket, a crankshaft, a pawl, a support shaft b, a ratchet, a cam, a support shaft c, a stop bar, and a connecting pin; the side where the ratchet is located is set as the front of the slide; The cable gripper slides in conjunction with the slide rail and simultaneously locks with the wire rope. A roller mounting bracket is located on the back of the slide rail, with a support shaft a mounted on it. A roller is mounted on support shaft a, rotating in conjunction with the wire rope. The end of support shaft a passes through the slide rail and connects to the crankshaft. A pawl is mounted on the crankshaft and located on the front of the slide rail, engaging with a ratchet. A support shaft b is rotatably mounted on the front of the slide rail, with a ratchet mounted on support shaft b. A cam is mounted on support shaft b, with a notch on it. The support shaft c is rotatably mounted on the front of the slide. From the inside out, the support shaft c is equipped with a hook, a swing plate, and a cover plate. A control lever is mounted at the bottom of the hook, and a handle is mounted at the bottom of the control lever. The swing plate is located between the cam and the cover plate. A limit rod is mounted on the swing plate, and the limit rod contacts the outer peripheral wall of the cam. A stop rod is mounted on the front of the slide, parallel to the support shaft c, and contacts the left side of the hook. A connecting pin is mounted on the front of the slide, and the connecting pin passes through the top of the hook.

[0005] Preferably, the handle is located on the slide and is perpendicular to the length direction of the slide.

[0006] Preferably, under the spacing restriction state, the gripper is in contact with the swing plate.

[0007] Preferably, in the spacing-limited contact state, the limiting rod is located within the notch, and the swing plate flips downwards until the gripper moves out.

[0008] Preferably, the cable gripper slides through a pulley and a track.

[0009] Compared with the prior art, the present invention has the following beneficial technical effects: By driving the steel wire rope to rotate the support roller, the support roller drives the pawl to rotate through the crankshaft. Each rotation of the pawl will move the ratchet by one tooth and drive the cam to rotate. At this time, the limit rod presses on the outer peripheral wall of the cam, and the swing plate cannot rotate clockwise, thus blocking the cable gripper. When the cam rotates to the position where the notch is at the top, the limit rod moves into the notch. At this time, the swing plate rotates clockwise under the pressure of the cable gripper, releasing the restriction on the cable gripper. Subsequently, as the cam continues to rotate, the limit rod contacts the outer peripheral wall of the cam again to block and limit the cable gripper for the next time, realizing the mechanical control of the passenger spacing. By changing the number of ratchet teeth, the passenger spacing can be changed to achieve safe and effective spacing for passengers. The larger the number of ratchet teeth, the larger the passenger spacing, and vice versa. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention; Figure 2 for Figure 1 Partial structural diagram; Figure 3 for Figure 1 Rear view; Figure 4 for Figure 1 Side view; Reference numerals: 1. Slide rail; 2. Wire rope; 3. Cable gripper; 4. Roller mounting bracket; 5. Roller; 6. Support shaft a; 7. Crankshaft; 8. Pawl; 9. Support shaft b; 10. Ratchet; 11. Cam; 12. Notch; 13. Support shaft c; 14. Control lever; 15. Swing plate; 16. Stop lever; 17. Cover plate; 18. Limiting rod; 19. Hook; 20. Connecting pin; 21. Handle. Detailed Implementation

[0011] like Figure 1-4 As shown, the present invention proposes a spacing limiting protection device, which includes a slide rail 1, a steel wire rope 2, a cable gripper 3, a roller mounting bracket 4, a crankshaft 7, a pawl 8, a support shaft b9, a ratchet 10, a cam 11, a support shaft c13, a stop bar 16, and a connecting pin 20; the side where the ratchet 10 is located is set as the front of the slide rail 1; The cable gripper 3 slides in conjunction with the slide rail 1 via a pulley, and simultaneously grips and locks the wire rope 2; the roller mounting bracket 4 is located on the back of the slide rail 1, and a support shaft a6 is mounted on the roller mounting bracket 4. A roller 5 is mounted on the support shaft a6, and the roller 5 rotates in conjunction with the wire rope 2. The end of the support shaft a6 passes through the slide rail 1 and is connected to the crankshaft 7; the pawl 8 is mounted on the crankshaft 7 and is located on the front of the slide rail 1, and the pawl 8 cooperates with the ratchet 10; the support shaft b9 is rotatably mounted on the front of the slide rail 1, and the ratchet 10 is mounted on the support shaft b9; the cam 11 is mounted on the support shaft b9, and a notch 12 is provided on the cam 11; The support shaft c13 is rotatably mounted on the front of the slide rail 1. From the inside out, the support shaft c13 is equipped with a hook 19, a swing plate 15, and a cover plate 17. A control lever 14 is mounted at the bottom of the hook 19, and a handle 21 is mounted at the bottom of the control lever 14. The handle 21 is located on the slide rail 1 and perpendicular to its length. The swing plate 15 is located between the cam 11 and the cover plate 17. A limiting rod 18 is mounted on the swing plate 15 and contacts the outer peripheral wall of the cam 11. A stop rod 16 is mounted on the front of the slide rail 1, parallel to the support shaft c13, and contacts the left side of the hook 19. A connecting pin 20 is mounted on the front of the slide rail 1 and passes through the top of the hook 19. In the spacing-limited state, the cable gripper 3 contacts the swing plate 15. In the spacing-limited contact state, the limiting rod 18 is located within the notch 12, and the swing plate 15 flips downwards until the cable gripper 3 moves out.

[0012] Working principle: The steel wire rope 2 drives the roller 5 to rotate, and the roller 5 drives the pawl 8 to rotate through the crankshaft 7. Each rotation of the pawl 8 will cause the ratchet 10 to rotate one tooth, which will drive the cam 11 to rotate. At this time, the limit rod 18 presses on the outer wall of the cam 11, and the swing plate 15 cannot rotate clockwise, thus blocking the cable gripper 3. When the cam 11 rotates to the position where the notch 12 is at the top, the limit rod 18 moves into the notch 12. At this time, the swing plate 15 rotates clockwise under the pressure of the cable gripper 3, releasing the restriction on the cable gripper 3. Then, as the cam 11 continues to rotate, the limit rod 18 contacts the outer wall of the cam 11 again to block and limit the cable gripper 3 for the next time, realizing the mechanical control of the passenger spacing. By changing the number of teeth of the ratchet 10, the passenger spacing can be changed to achieve safe and effective spacing for passengers. The larger the number of teeth of the ratchet 10, the larger the passenger spacing, and vice versa.

[0013] This invention is safe, reliable, highly innovative, and features strong mechanical component linkage, effectively addressing the need for safe distances when miners are traveling.

[0014] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A spacing limiting protection device, characterized in that, Includes slide (1), wire rope (2), cable gripper (3), roller mounting bracket (4), crankshaft (7), pawl (8), support shaft b (9), ratchet (10), cam (11), support shaft c (13), stop bar (16) and connecting pin (20); the side where the ratchet (10) is located is set as the front of the slide (1); The cable gripper (3) slides in cooperation with the slide rail (1), and the cable gripper (3) locks with the wire rope (2) at the same time; the roller mounting bracket (4) is set on the back of the slide rail (1), the roller mounting bracket (4) is set with a support shaft a (6), the support shaft a (6) is set with a roller (5), the roller (5) rotates in cooperation with the wire rope (2), the end of the support shaft a (6) passes through the slide rail (1) and is connected to the crankshaft (7); the pawl (8) is set on the crankshaft (7), the pawl (8) is located on the front of the slide rail (1), the pawl (8) cooperates with the ratchet (10); the support shaft b (9) is rotatably set on the front of the slide rail (1), the ratchet (10) is set on the support shaft b (9); the cam (11) is set on the support shaft b (9), and the cam (11) is set with a notch (12); The support shaft c (13) is rotatably mounted on the front of the slide rail (1). From the inside out, the support shaft c (13) is provided with a hook (19), a swing plate (15) and a cover plate (17). The bottom of the hook (19) is provided with a control lever (14), and the bottom of the control lever (14) is provided with a handle (21). The swing plate (15) is located between the cam (11) and the cover plate (17). The swing plate (15) is provided with a limit rod (18). The limit rod (18) is connected to the cam (11). The outer peripheral wall is in contact; the stop bar (16) is set on the front of the slide (1), the stop bar (16) is parallel to the support shaft c (13), and the stop bar (16) is in contact with the left side of the hook (19); the connecting pin (20) is set on the front of the slide (1), and the connecting pin (20) passes through the top of the hook (19); the cable holder (3) is in contact with the swing plate (15); the limit bar (18) is located in the notch (12), and the swing plate (15) flips down until the cable holder (3) moves out.

2. The spacing limiting protection device according to claim 1, characterized in that, The handle (21) is located on the slide (1) and is perpendicular to the length direction of the slide (1).

3. The spacing limiting protection device according to claim 1, characterized in that, The cable holder (3) slides through the pulley and the slide rail (1).

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