Anti-slip device

Abstract

The utility model discloses an anti-skid device, belonging to the field of outdoor products. An anti-skid device comprises a movable side plate, a fixed side plate, an anti-skid wheel, a cam, a fixed shaft and a rotating shaft; the cam is sleeved on the outer periphery of the rotating shaft, the movable side plate and the fixed side plate are sleeved on the outer periphery of the rotating shaft on both sides of the cam respectively, and the movable side plate is rotatably arranged relative to the fixed side plate; the anti-skid wheel is sleeved on the outer periphery of the fixed shaft, and the anti-skid wheel is rotatably connected with the fixed side plate through the fixed shaft; the anti-skid wheel and the cam are relatively arranged to form a channel to allow the rope to pass; the anti-skid wheel comprises a ring part and a tooth part; the tooth part is fixedly arranged on the outer periphery of the ring part, and a plurality of convex teeth are arranged on the outer side wall of the tooth part to increase friction; in this arrangement, the tightness of the anti-skid device relative to the rope can be controlled by adjusting the anti-skid wheel, so as to easily switch between the roller skating function and the anti-skid function.

Description

Technical Field

[0001] The utility model belongs to the field of outdoor products, and more specifically relates to an anti-slip device. Background Art

[0002] A pulley is a common mechanical device that improves work efficiency by changing the direction of the rope and reducing friction. It is widely used in industry, construction, rescue, mountaineering and other fields. In activities such as mountaineering, rock climbing and aerial work, the rope is a vital safety tool, but in some cases, the rope may slip due to uneven force, insufficient friction and other reasons, causing danger. Therefore, it is necessary to add an anti-slip structure to the pulley device to effectively prevent the rope from sliding. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an anti-skid device, which can realize easy switching between a wheel sliding function and an anti-skid function.

[0004] The utility model discloses an anti-slip device, comprising a movable side plate, a fixed side plate, an anti-slip wheel, a cam, a fixed shaft and a rotating shaft; the cam is sleeved on the outer periphery of the rotating shaft, the movable side plate and the fixed side plate are sleeved on the outer periphery of the rotating shaft on both sides of the cam respectively, and the movable side plate is rotatably arranged relative to the fixed side plate; the anti-slip wheel is sleeved on the outer periphery of the fixed shaft, and the anti-slip wheel is rotatably connected with the fixed side plate through the fixed shaft; the anti-slip wheel and the cam are relatively arranged to form a channel to allow the rope to pass through;

[0005] The anti-slip wheel comprises a ring portion and a tooth portion; the tooth portion is fixedly arranged on the outer periphery of the ring portion, and a plurality of convex teeth are arranged on the outer side wall of the tooth portion to increase friction.

[0006] As a further improvement of the utility model, a second fixing hole and a second axial hole are respectively opened through the fixed side plate; the second fixing hole and the second axial hole are respectively arranged at two ends of the fixed side plate at intervals; the rotating groove and the through hole are respectively arranged around the outer periphery of the second fixing hole;

[0007] The rotating groove is semi-annular and is arranged around the outer periphery of the second fixing hole.

[0008] As a further improvement of the utility model, it also includes a knob, one end of which passes through the rotation groove and is detachably connected to the anti-slip wheel.

[0009] As a further improvement of the utility model, a first fixing hole and a first shaft hole are respectively opened through the movable side plate, and the first fixing hole and the first shaft hole are respectively arranged at two ends of the movable side plate at intervals;

[0010] The cam is penetrated with a through hole; the rotating shaft passes through the second shaft hole, the through hole and the first shaft hole in sequence to install and connect the movable side plate and the fixed side plate; the cam is provided with a sliding groove around the outer circumference to allow the rope to pass through while limiting the rope in the sliding groove.

[0011] As a further improvement of the utility model, the rotating shaft is a first rotating shaft, which includes a hollow column, a first step layer is fixedly provided at one end of the hollow column, a second step layer is fixedly provided on the outer periphery of the other end of the hollow column, and the second step layer is spaced apart from the end of the hollow column.

[0012] As a further improvement of the utility model, a third step layer is fixedly provided on the outer periphery of one end of the fixed shaft, and a fourth step layer is fixedly provided on the outer periphery of the other end of the fixed shaft, and the fourth step layer is spaced apart from the end of the fixed shaft;

[0013] The anti-slip wheel is provided with a third axial hole, a first blind hole and a second blind hole; the first blind hole and the second blind hole are arranged at intervals on the outer periphery of the third axial hole;

[0014] The third shaft hole is concavely arranged at one end of the anti-slip wheel with the blind hole to form a third step layer with the outer side wall of the anti-slip wheel to abut against the third step layer of the fixed shaft.

[0015] As a further improvement of the utility model, the second fixed hole is recessed at one end away from the cam to form a first step layer with the outer wall of the fixed side plate, so as to abut against the fourth step layer of the fixed shaft; the second shaft hole is recessed at one end away from the anti-slip wheel to form a second step layer with the fixed side plate, so as to abut against the second step layer of the first rotating shaft.

[0016] As a further improvement of the utility model, the knob includes a first fixing column, a second fixing column and a third fixing column; the second fixing column is fixedly arranged on the top of the first fixing column, and the third fixing column is fixedly arranged on an end of the second fixing column away from the first fixing column;

[0017] The outer diameter of the third fixing column is larger than the outer diameter of the second fixing column to form a fifth step layer, and the outer diameter of the second fixing column is larger than the outer diameter of the first fixing column;

[0018] After one end of the knob passes through the rotating groove, it is detachably connected to the second blind hole; the fifth step layer abuts against the outer wall of the fixed side plate 2; a thread is provided on the inner wall of the second blind hole, and the second blind hole and the knob are threadedly connected.

[0019] As a further improvement of the utility model, it also includes a column, which includes a column body and a roller, and the roller is rotatably embedded in the top of the column body; one end of the column body away from the roller is fixedly embedded in the first blind hole.

[0020] As a further improvement of the present invention, the rotating shaft is a second rotating shaft; the second rotating shaft includes a rotating shaft, one end of which is fixedly provided with a first fixing plate, and the other end of the rotating shaft is fixedly provided with a second fixing plate; the second fixing plate is abutted against the outer wall of the fixed side plate, and the first fixing plate is abutted against the outer wall of the movable side plate.

[0021] Compared with the prior art, the beneficial effects of the utility model are as follows: in the solution of the utility model, the anti-slip device uses a cam to match the anti-slip wheel to control the tightness of the rope, so as to achieve the functions of the pulley and the anti-slip function, and easily switch between the roller skating function and the anti-slip function; the device can be used as a pulley and can also prevent the rope from sliding on the device;

[0022] The outer periphery of the cam is provided with a sliding groove to allow the rope to pass through, and the anti-slip wheel is provided with a tooth portion; when the tooth portion of the anti-slip wheel faces the cam, a channel is formed between the anti-slip wheel and the cam to allow the rope to pass through, and the rope is subjected to force and drives the tooth portion to approach the cam to control the tightness of the rope; at this time, the column slides in the rotating groove;

[0023] When the upright post is clamped in the through hole and the tooth portion of the anti-skid wheel is away from the cam, the rope is not restricted by the anti-skid wheel and can pass smoothly, thereby realizing the function of roller skating. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is one of the structural schematic diagrams of the anti-slip device of the first embodiment of the utility model;

[0025] Figure 2 This is one of the structural schematic diagrams of the anti-slip device in the open state of the first embodiment of the utility model;

[0026] Figure 3 This is a second structural schematic diagram of the anti-slip device in the open state of the first embodiment of the utility model;

[0027] Figure 4 This is a schematic diagram of the explosion structure of the anti-slip device of Example 1 of the utility model;

[0028] Figure 5 This is one of the structural schematic diagrams of the anti-slip device of the first embodiment of the utility model;

[0029] Figure 6 This is a schematic diagram of the anti-slip device structure of the second embodiment of the utility model;

[0030] Figure 7 This is a schematic diagram of the exploded structure of the anti-slip device in the second embodiment of the utility model.

[0031] Description of the numbers in the figure:

[0032] 1. Movable side plate; 11. First fixing hole; 12. First axial hole; 2. Fixed side plate; 21. Rotating groove; 22. Second fixing hole; 23. Second axial hole; 24. Through hole; 3. Anti-slip wheel; 31. Third axial hole; 32. Protruding tooth; 33. First blind hole; 34. Second blind hole; 4. Cam; 41. Slide groove; 42. Through hole; 5. Knob; 6. Fixed shaft; 7. First rotating shaft; 8. Second rotating shaft; 81. Second fixing plate; 9. Column. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below in conjunction with the embodiments. The following embodiments are intended to explain the present invention but the present invention is not limited to the following embodiments.

[0034] Specific embodiment 1: Please refer to Figure 1-5 An anti-skid device comprises a movable side plate 1, a fixed side plate 2, an anti-skid wheel 3, a cam 4, a fixed shaft 6 and a rotating shaft; the cam 4 is sleeved on the outer periphery of the rotating shaft, the movable side plate 1 and the fixed side plate 2 are respectively sleeved on the outer periphery of the rotating shaft on both sides of the cam 4, and the movable side plate 1 is rotatably arranged relative to the fixed side plate 2; the anti-skid wheel 3 is sleeved on the outer periphery of the fixed shaft 6, and the anti-skid wheel 3 is rotatably connected to the fixed side plate 2 through the fixed shaft 6; the anti-skid wheel 3 and the cam 4 are relatively arranged to form a channel for allowing a rope to pass through.

[0035] Preferably, the anti-slip wheel 3 and the cam 4 are arranged at intervals on the same side of the fixed side plate.

[0036] The cam 4 is penetrated by a through hole 42 ; the rotating shaft passes through the second shaft hole 23 , the through hole 42 and the first shaft hole 12 in sequence, so as to install and connect the movable side plate 1 and the fixed side plate 2 .

[0037] The cam 4 is provided with a sliding groove 41 around the outer circumference, so as to allow the rope to pass through while confining the rope in the sliding groove 41 .

[0038] The movable side plate 1 is respectively provided with a first fixing hole 11 and a first shaft hole 12 , and the first fixing hole 11 and the first shaft hole 12 are respectively arranged at two ends of the movable side plate 1 at intervals.

[0039] The fixed side plate 2 is respectively provided with a second fixing hole 22 and a second shaft hole 23 ; the second fixing hole 22 and the second shaft hole 23 are respectively arranged at two ends of the fixed side plate 2 ; the rotation groove 21 and the through hole 24 are respectively arranged around the outer circumference of the second fixing hole 22 .

[0040] Preferably, the rotation groove 21 is semi-annular and is arranged around the outer circumference of the second fixing hole 22 .

[0041] Optionally, the rotating shaft is the first rotating shaft 7, which includes a hollow column, a first step layer is fixedly provided at one end of the hollow column, a second step layer 71 is fixedly provided at the outer periphery of the other end of the hollow column, and the second step layer 71 is spaced apart from the end of the hollow column.

[0042] A third step layer is fixedly provided on the outer periphery of one end of the fixed shaft 6 , and a fourth step layer is fixedly provided on the outer periphery of the other end of the fixed shaft 6 . The fourth step layer is spaced apart from the end of the fixed shaft 6 .

[0043] Optionally, the second fixing hole 22 is recessed at one end away from the cam 4 to form a first step layer with the outer wall of the fixed side plate 2, so as to abut against the fourth step layer of the fixed shaft 6; the second shaft hole 23 is recessed at one end away from the anti-slip wheel 3 to form a second step layer with the fixed side plate 2, so as to abut against the second step layer 71 of the first rotating shaft 7.

[0044] The anti-slip device also includes a knob 5, one end of which passes through the rotating groove 21 and is detachably connected to the anti-slip wheel 3; the knob 5 drives the anti-slip wheel 3 to rotate along the rotating groove 21; when the anti-slip wheel 3 reaches the preset position, the knob 5 is tightened to fix the anti-slip wheel 3.

[0045] The anti-slip wheel 3 includes a ring portion and a tooth portion; the tooth portion is fixedly arranged on the outer periphery of the ring portion, and a plurality of convex teeth 32 are arranged on the outer side wall of the tooth portion to increase friction.

[0046] Preferably, the teeth are arranged toward the cam 4, forming a channel between the teeth and the cam to allow the rope to pass through. The position of the teeth relative to the cam is adjusted by a knob to control the tightness of the rope; the position of the anti-slip wheel is positioned by tightening and loosening the knob.

[0047] The anti-slip wheel 3 is provided with a third axial hole 31 , a first blind hole 33 and a second blind hole 34 . The first blind hole 33 and the second blind hole 34 are arranged at intervals on the outer periphery of the third axial hole 31 .

[0048] The third shaft hole 31 is concavely arranged at one end of the anti-skid wheel 3 where the blind hole is opened, so as to form a third step layer with the outer wall of the anti-skid wheel 3 , so as to abut against the third step layer of the fixed shaft 6 .

[0049] Optionally, the knob 5 includes a first fixing column, a second fixing column and a third fixing column; the second fixing column is fixedly arranged on the top of the first fixing column, and the third fixing column is fixedly arranged on an end of the second fixing column away from the first fixing column.

[0050] Preferably, the outer diameter of the third fixing column is larger than that of the second fixing column to form a fifth step layer, and the outer diameter of the second fixing column is larger than that of the first fixing column.

[0051] After one end of the knob 5 passes through the rotating groove 21 , it is detachably connected to the second blind hole; the fifth step layer abuts against the outer side wall of the fixed side plate 2 .

[0052] Optionally, a thread is provided on the inner wall of the second blind hole 34 , and the second blind hole 34 and the knob 5 are threadedly connected.

[0053] The anti-slip device also includes a column 9, which includes a column body and a roller. The roller is rotatably embedded in the top of the column body; one end of the column body away from the roller is fixedly embedded in the first blind hole 33.

[0054] When the teeth of the anti-slip wheel 3 face the cam 4, a passage is formed between the cam 4 to allow the rope to pass through, and the position of the teeth relative to the cam 4 is adjusted by the knob 5 to control the tightness of the rope; at this time, the column 9 slides in the rotating groove 21, and the anti-slip wheel is fixed at a preset position by tightening and loosening the knob 5;

[0055] When the upright post 9 is stuck in the through hole and the teeth of the anti-skid wheel 3 are away from the cam 4, the rope is not restricted by the anti-skid wheel 3 and can pass smoothly, thereby realizing the function of roller skating.

[0056] Specific embodiment 2: Different from specific embodiment 1, please refer to Figure 6-7 The rotating shaft is the second rotating shaft 8; the second rotating shaft 8 includes a rotating shaft, one end of which is fixedly provided with a first fixing plate, and the other end of the rotating shaft is fixedly provided with a second fixing plate 81; the second fixing plate 81 is abutted against the outer wall of the fixed side plate 2, and the first fixing plate is abutted against the outer wall of the movable side plate 1.

[0057] Preferably, the rotating shaft is a solid shaft.

[0058] The above is only a preferred specific implementation method of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed in the present application according to the technical solution and improved ideas of the present application, which should be covered by the protection scope of the present application.

Claims

1. An anti-slip device, characterized in that: The invention comprises a movable side plate (1), a fixed side plate (2), a non-slip wheel (3), a cam (4), a fixed shaft (6) and a rotating shaft; the cam (4) is sleeved on the outer periphery of the rotating shaft, the movable side plate (1) and the fixed side plate (2) are sleeved on the outer periphery of the rotating shaft on both sides of the cam (4), respectively, and the movable side plate (1) is rotatably arranged relative to the fixed side plate (2); the non-slip wheel (3) is sleeved on the outer periphery of the fixed shaft (6), and the non-slip wheel (3) is rotatably connected to the fixed side plate (2) via the fixed shaft (6); the non-slip wheel (3) and the cam (4) are arranged relative to each other to form a channel for allowing the rope to pass through; The anti-slip wheel (3) comprises a ring portion and a tooth portion; the tooth portion is fixedly arranged on the outer periphery of the ring portion, and a plurality of convex teeth (32) are arranged on the outer side wall of the tooth portion to increase friction.

2. The anti-slip device according to claim 1, characterized in that: The fixed side plate (2) is respectively provided with a second fixing hole (22) and a second shaft hole (23); the second fixing hole (22) and the second shaft hole (23) are respectively arranged at two ends of the fixed side plate (2) at intervals; the rotation groove (21) and the through hole (24) are respectively arranged around the outer circumference of the second fixing hole (22); The rotating groove (21) is semi-annular and is arranged around the outer circumference of the second fixing hole (22).

3. The anti-slip device according to claim 2, characterized in that: It also includes a knob (5), one end of which passes through the rotation groove (21) and is detachably connected to the anti-slip wheel (3).

4. The anti-slip device according to claim 1, characterized in that: The movable side plate (1) is respectively provided with a first fixing hole (11) and a first shaft hole (12), and the first fixing hole (11) and the first shaft hole (12) are respectively arranged at intervals at two ends of the movable side plate (1); The cam (4) is penetrated by a through hole (42); the rotating shaft sequentially penetrates the second shaft hole (23), the through hole (42) and the first shaft hole (12) to install and connect the movable side plate (1) and the fixed side plate (2); the cam (4) is provided with a sliding groove (41) around the outer circumference to allow the rope to pass through while restricting the rope in the sliding groove (41).

5. The anti-slip device according to claim 1, characterized in that: The rotating shaft is a first rotating shaft (7), and the first rotating shaft (7) comprises a hollow column, a first step layer is fixedly provided at one end of the hollow column, a second step layer (71) is fixedly provided on the outer periphery of the other end of the hollow column, and the second step layer (71) is spaced apart from the end of the hollow column.

6. The anti-slip device according to claim 1, characterized in that: A third step layer is fixedly provided on the outer periphery of one end of the fixed shaft (6), and a fourth step layer is fixedly provided on the outer periphery of the other end of the fixed shaft (6), and the fourth step layer is spaced apart from the end of the fixed shaft (6); The anti-slip wheel (3) is provided with a third axial hole (31), a first blind hole (33) and a second blind hole (34); the first blind hole (33) and the second blind hole (34) are arranged at intervals on the outer circumference of the third axial hole (31); The third shaft hole (31) is located at one end of the anti-slip wheel (3) where the blind hole is opened, and is concavely arranged to form a third step layer with the outer side wall of the anti-slip wheel (3), so as to abut against the third step layer of the fixed shaft (6).

7. The anti-slip device according to claim 6, characterized in that: The end of the second fixing hole (22) away from the cam (4) is concavely arranged to form a first step layer with the outer wall of the fixed side plate (2) so as to abut against the fourth step layer of the fixed shaft (6); the end of the second shaft hole (23) away from the anti-slip wheel (3) is concavely arranged to form a second step layer with the fixed side plate (2) so as to abut against the second step layer (71) of the first rotating shaft (7).

8. The anti-slip device according to claim 6, characterized in that: The knob (5) comprises a first fixing column, a second fixing column and a third fixing column; the second fixing column is fixedly arranged on the top of the first fixing column, and the third fixing column is fixedly arranged on an end of the second fixing column away from the first fixing column; The outer diameter of the third fixing column is larger than the outer diameter of the second fixing column to form a fifth step layer, and the outer diameter of the second fixing column is larger than the outer diameter of the first fixing column; After one end of the knob (5) passes through the rotation slot (21), it is detachably connected to the second blind hole; the fifth step layer abuts against the outer side wall of the fixed side plate (2); A thread is provided on the inner side wall of the second blind hole (34), and the second blind hole (34) and the knob (5) are threadedly connected.

9. The anti-slip device according to claim 6, characterized in that: It also comprises a column (9), the column (9) comprising a column body and a roller, the roller being rotatably embedded in the top of the column body; one end of the column body away from the roller is fixedly embedded in the first blind hole (33).

10. The anti-slip device according to claim 1, characterized in that: The rotating shaft is a second rotating shaft (8); the second rotating shaft (8) comprises a rotating shaft, one end of which is fixedly provided with a first fixing plate, and the other end of which is fixedly provided with a second fixing plate (81); the second fixing plate (81) is arranged in contact with the outer side wall of the fixed side plate (2), and the first fixing plate is arranged in contact with the outer side wall of the movable side plate (1).

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