Universal pulley

Abstract

The utility model discloses a universal pulley, and belongs to the technical field of pulleys. A universal pulley comprises a hanging ring, a support assembly and a pulley assembly. The support assembly comprises a top plate, a first side plate and a second side plate. One side of the top plate is fixedly connected with the first side plate; the hanging ring is pivoted on the top plate of the bracket assembly in a downward rotatable manner; the second side plate is arranged opposite to the first side plate; the pulley assembly is arranged between the first side plate and the second side plate; a brake assembly is arranged between the first side plate and the second side plate; the brake assembly is arranged above the pulley assembly; a knob assembly is installed on the side, away from the second side plate, of the first side plate. The input control end of the brake assembly penetrates through the first side plate to be connected with the knob assembly so as to control operation of the brake assembly through the knob assembly. Free switching between the pulley and the stopping pulley is achieved through the braking assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of pulleys, and more specifically, relates to a universal pulley. Background Art

[0002] Pulleys are widely used in mountaineering, rock climbing and other outdoor activities; pulleys are key equipment in rock climbing, mountaineering and rescue activities, helping climbers and rescuers lift or pull heavy objects, or change the direction of the applied force to reduce the load; in the prior art, the control of the pulley's stop is not very convenient in operation and is prone to misoperation during use; and in the switching between the pulley and the stop pulley, the structure of a simple pulley cannot be fully realized. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a universal pulley that can freely switch between a pulley and a stop pulley.

[0004] A universal pulley of the utility model includes a hanging ring, a bracket assembly and a pulley assembly; the bracket assembly includes a top plate, a first side plate and a second side plate; one side of the top plate is fixedly connected to the first side plate; the hanging ring is pivotally connected to the top plate of the bracket assembly in a downwardly rotatable manner; the second side plate is arranged opposite to the first side plate; the pulley assembly is arranged between the first side plate and the second side plate; a braking assembly is arranged between the first side plate and the second side plate; the braking assembly is arranged above the pulley assembly; a knob assembly is installed on one side of the first side plate away from the second side plate; the input control end of the braking assembly penetrates through the first side plate and is installed and connected to the knob assembly to control the operation of the braking assembly through the knob assembly.

[0005] As a further improvement of the utility model, the pulley assembly includes a pulley and a first bushing; one end of the first bushing is fixedly arranged on the side wall of the first side plate facing the top plate; the pulley is rotatably sleeved on the outer periphery of the first bushing;

[0006] The second side plate is provided with a second jack through which it is rotatably sleeved on the outer periphery of the end of the first bushing away from the first side plate.

[0007] As a further improvement of the utility model, the braking assembly includes an arc-shaped plate and a fixing bolt; a number of reverse teeth are fixedly arranged on the outer side wall of the arc-shaped plate, and the reverse teeth are arranged in a conical shape; a wire groove is formed around the outer periphery of the pulley; a rope channel is formed between the side of the arc-shaped plate with reverse teeth and the wire groove of the pulley.

[0008] As a further improvement of the utility model, the first bushing is hollow and penetrates through from front to back to form a first central hole; the first central hole is provided with threads inside;

[0009] The pulley assembly further includes a first fixing bolt; the first fixing bolt passes through the first central hole and is threadedly connected to the first bushing to limit the second side plate on the first bushing.

[0010] As a further improvement of the present utility model, a fourth slot is fixedly provided on the side of the arc plate away from the reverse teeth, and a third slot is provided at a position adjacent to the fourth slot; a ball bearing is fixedly embedded in the third slot; the ball bearing is hollowly arranged to form a hollow groove; a first spring is arranged in the hollow groove; a ball is rotatably embedded at the top of the hollow groove of the ball bearing;

[0011] A first connecting rod is embedded in the fourth slot; a first groove is provided on the side of the upper end of the first side plate away from the pulley; the knob assembly is embedded in the first groove; a first slot and a third through hole are penetrated in the first groove; one end of the first connecting rod away from the fourth slot penetrates the first slot and is installed and connected to the knob assembly; a fourth groove is provided at the end of one end of the arc plate, and one end of the fixing bolt penetrates the end of the arc plate provided with the fourth groove, and the torsion spring is sleeved on the outer periphery of the part of the fixing bolt in the fourth groove; the fixing bolt penetrates the third through hole and is rotatably connected to the knob assembly; a handle is fixedly provided on the side of the knob assembly away from the first groove for holding.

[0012] As a further improvement of the present utility model, a first limiting groove is provided on the side of the first side plate facing the second side plate to carry and limit the ball;

[0013] The first slot is annularly arranged.

[0014] As a further improvement of the present utility model, a switch assembly is further included; a second slot is penetrated on the side of the top plate away from the first side plate; a first jack is penetrated in the second side plate; the switch assembly sequentially penetrates the first jack and the second slot and is slidably embedded in the second slot.

[0015] As a further improvement of the present utility model, the switch assembly includes a button, a receiving seat, a cross bar and a second spring; a first through hole is penetrated in the receiving seat; two second through holes are respectively penetrated on both sides of the receiving seat, and the two second through holes are oppositely arranged; both ends of the cross bar respectively penetrate the corresponding second through holes and are erected in the first through hole; a third groove is provided at the lower end of the button; the lower end of the button is embedded in the first through hole, and the third groove slidably covers the outer periphery of the cross bar; the second spring is embedded in the first through hole and abuts against the lower end of the button; one end of the second spring away from the button abuts against the bottom of the second slot;

[0016] The switch assembly further includes a limiting post; a second limiting groove is provided on the outer peripheral side wall of the receiving seat; one end of the limiting post is slidably embedded in the second limiting groove, and the other end of the limiting post sequentially penetrates the side wall of the second slot and the outer side wall of the top plate and is installed and connected to the top plate.

[0017] As a further improvement of the present utility model, at the position where the lower end of the first side plate is flush with the lower end of the second side plate, it extends downward to form an extension part; a hanging hole is provided through the extension part.

[0018] As a further improvement of the present utility model, it further includes a second fixing bolt and a second fixing column; the hanging ring is rotatably connected to the top plate through the second fixing bolt; the inside of the top plate is hollow to form a first cavity; the lower end of the second fixing bolt sequentially penetrates the bottom of the hanging ring and the top of the top plate and extends into the first cavity; one end of the second fixing column penetrates the lower end of the second fixing bolt and is installed and connected to the side wall of the top plate.

[0019] Compared with the prior art, the beneficial effect of the present utility model is that: the solution of the present utility model controls the operation of the braking component by rotating the knob component, thereby adjusting the distance between the reverse teeth on the arc plate and the pulley, changing the size of the rope channel; when the reverse teeth are far away from the pulley, the rope channel is larger to allow the rope to slide smoothly; when the reverse teeth are closer to the pulley, the rope channel is smaller, and finally the effect of stopping is achieved.

[0020] This solution also provides a ball, and the ball is used in cooperation with the first limiting groove. The first limiting groove is used to carry and limit the ball. When it is located in the first limiting groove, the reverse teeth are farthest from the pulley, the rope channel is the largest, and it is in a pulley state.

[0021] A switch component is also provided to control the opening and closing of the second side plate through the switch component. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is one of the schematic structural diagrams of the universal pulley of the present utility model;

[0023] Figure 2 It is another schematic structural diagram of the universal pulley of the present utility model;

[0024] Figure 3 It is the exploded structural diagram of the universal pulley of the present utility model;

[0025] Figure 4 It is one of the schematic structural diagrams of the braking component of the present utility model;

[0026] Figure 5 It is another schematic structural diagram of the braking component of the present utility model;

[0027] Figure 6 It is the partial schematic structural diagram of the bracket component of the present utility model;

[0028] Figure 7 It is the exploded structural diagram of the switch component of the present utility model;

[0029] Figure 8This is a schematic diagram of the partial structure of the universal pulley of the present utility model.

[0030] Explanation of reference numerals in the figure:

[0031] 1. Hanging ring; 2. Bracket assembly; 21. Top plate; 22. First side plate; 221. First groove; 222. First slot; 223. First limiting groove; 224. Second slot; 225. First rotating shaft; 226. Sliding groove; 23. Second side plate; 231. Second jack; 232. First jack; 233. Second groove; 3. Pulley assembly; 31. Pulley; 32. First fixing bolt; 4. Knob assembly; 41. Knob handle; 5. Braking assembly; 51. Reverse teeth; 52. Arc plate; 53. Ball; 54. Ball bearing; 55. Torsion spring; 56. Fixing bolt; 57. First connecting rod; 6. Second fixing bolt; 7. Second fixing column; 8. Switch assembly; 81. Button; 811. Third groove; 82. Bearing seat; 821. Second through hole; 822. Second limiting groove; 83. Limiting column; 84. Cross bar; 85. Second spring. Specific embodiments

[0032] The following further elaborates on the present utility model in conjunction with embodiments. The following embodiments are explanations of the present utility model, and the present utility model is not limited to the following embodiments.

[0033] Specific Embodiment 1: Please refer to Figure 1-8 a universal pulley, which includes a hanging ring 1, a bracket assembly 2 and a pulley assembly 3; the bracket assembly 2 includes a top plate 21, a first side plate 22 and a second side plate 23; one side of the top plate 21 is fixedly connected to the first side plate 22; the hanging ring 1 is pivotally connected to the top plate 21 of the bracket assembly 2 in a downwardly rotatable manner; the second side plate 23 is arranged opposite to the first side plate 22; the pulley assembly 3 is arranged between the first side plate 22 and the second side plate 23.

[0034] A braking assembly 5 is arranged between the first side plate 22 and the second side plate 23; the braking assembly 5 is arranged above the pulley assembly 3; a knob assembly 4 is installed on one side of the first side plate 22 away from the second side plate 23; the input control end of the braking assembly 5 penetrates through the first side plate 22 and is installed and connected to the knob assembly 4 to control the operation of the braking assembly 5 through the knob assembly 4.

[0035] The pulley assembly 3 includes a pulley 31 and a first bushing 225; one end of the first bushing 225 is fixedly arranged on the side wall of the first side plate 22 facing the top plate 21; the pulley 31 is rotatably sleeved on the outer periphery of the first bushing 225.

[0036] The second side plate 23 is provided with a second jack 231 through it; the second side plate 23 is rotatably sleeved on the outer periphery of the end of the first bushing 225 away from the first side plate 22 through the second jack 231.

[0037] Optionally, at a position where the lower end of the first side plate 22 is flush with the lower end of the second side plate 23, it extends downward to form an extension portion; a hanging hole is formed through the extension portion.

[0038] The braking assembly 5 includes an arc-shaped plate 52 and a fixing bolt 56; a plurality of reverse teeth 51 are fixedly arranged on the outer side wall of the arc-shaped plate 52, and the reverse teeth 51 are arranged in a conical shape; a wire groove is formed by surrounding the outer circumference of the pulley 31; a rope channel is formed between the side of the arc-shaped plate 52 with the reverse teeth 51 and the wire groove of the pulley 31.

[0039] Optionally, the first bushing 225 is hollow and runs through from front to back to form a first central hole; the first central hole is provided with threads.

[0040] The pulley assembly 3 further includes a first fixing bolt 32; the first fixing bolt 32 passes through the first central hole and is threadedly connected to the first bushing 225 to limit the second side plate 23 on the first bushing 225.

[0041] A fourth slot is fixedly arranged on the side of the arc-shaped plate 52 away from the reverse teeth 51, and a third slot is formed at a position adjacent to the fourth slot; a ball bearing 54 is fixedly embedded in the third slot; the ball bearing 54 is hollow and forms a hollow groove; a first spring is arranged in the hollow groove; a ball 53 is rotatably embedded at the top of the hollow groove of the ball bearing 54;

[0042] A first connecting rod 57 is embedded in the fourth slot; a first groove 221 is formed on the side of the upper end of the first side plate 22 away from the pulley 31; the knob assembly 4 is embedded in the first groove 221; a first slot 222 and a third through hole are formed through the first groove 221; one end of the first connecting rod 57 away from the fourth slot passes through the first slot 222 and is installed and connected to the knob assembly 4; a fourth groove is formed at one end of the arc-shaped plate 52, and one end of the fixing bolt 56 passes through the end of the arc-shaped plate 52 with the fourth groove, and the torsion spring 55 is sleeved on the outer circumference of the part of the fixing bolt 56 in the fourth groove; the fixing bolt 56 passes through the third through hole and is rotatably connected to the knob assembly 4; a rotating handle is fixedly arranged on the side of the knob assembly 4 away from the first groove 221 for holding.

[0043] Preferably, a first limiting groove 223 is formed on the side of the first side plate 22 facing the second side plate 23 to carry and limit the ball 53.

[0044] Optionally, when the ball 53 is located in the first limiting groove 223, the reverse teeth 51 are away from the pulley 31 to allow the rope to slide smoothly.

[0045] Preferably, the first slot 222 is annularly arranged.

[0046] Optionally, the universal pulley further includes a second fixing bolt 6 and a second fixing column 7; the hanging ring 1 is rotatably connected to the top plate 21 through the second fixing bolt 6; the inside of the top plate 21 is hollow to form a first cavity; the lower end of the second fixing bolt 6 sequentially penetrates through the bottom of the hanging ring 1 and the top of the top plate 21 and extends into the first cavity; one end of the second fixing column 7 penetrates through the lower end of the second fixing bolt 6 and is installed and connected to the side wall of the top plate 21.

[0047] Optionally, a second slot is formed through the side of the top plate 21 away from the first side plate 22; a first insertion hole 232 is formed through the second side plate 23.

[0048] The universal pulley further includes a switch assembly 8, and the switch assembly 8 sequentially penetrates through the first insertion hole 232 and the second slot and is slidably embedded in the second slot.

[0049] The switch assembly 8 includes a button 81, a receiving seat 82, a cross bar 84 and a second spring 85; the receiving seat 82 is provided with a first through hole; two second through holes 821 are respectively formed through both sides of the receiving seat 82, and the two second through holes 821 are oppositely arranged; both ends of the cross bar 84 respectively penetrate through the corresponding second through holes 821 and are erected in the first through hole; a third groove 811 is formed at the lower end of the button 81; the lower end of the button 81 is embedded in the first through hole, and the third groove 811 slidably wraps around the outer periphery of the cross bar 84; the second spring 85 is embedded in the first through hole and abuts against the lower end of the button 81; one end of the second spring 85 away from the button 81 abuts against the bottom of the second slot.

[0050] The switch assembly 8 further includes a limiting column 83; a second limiting groove 822 is formed on the outer peripheral side wall of the receiving seat 82; one end of the limiting column 83 is slidably embedded in the second limiting groove, and the other end of the limiting column 83 sequentially penetrates through the side wall of the second slot 224 and the outer side wall of the top plate 21 and is installed and connected to the top plate 21.

[0051] Optionally, a second groove 233 is concavely arranged on the inner periphery of the outer side of the first insertion hole 232 away from the top plate 21; when the button 81 slides and abuts against the second groove 233, the second side plate 23 and the top plate 21 are locked and cannot be opened; when the button 81 slides and is pressed down into the second slot 224, the second side plate 23 and the top plate 21 are unlocked and can be opened.

[0052] The above; only the preferred specific embodiments of the present application; but the protection scope of the present application is not limited thereto; any person skilled in the art within the technical scope disclosed by the present application; according to the technical solutions of the present application and their improved concepts for equivalent replacement or change; should be covered by the protection scope of the present application.

Claims

1. A universal pulley, comprising a hanging ring (1), a bracket assembly (2) and a pulley assembly (3); the bracket assembly (2) comprises a top plate (21), a first side plate (22) and a second side plate (23); one side of the top plate (21) is fixedly connected to the first side plate (22); the hanging ring (1) is pivotally connected to the top plate (21) of the bracket assembly (2) in a rotatable manner downward; the second side plate (23) is arranged opposite to the first side plate (22); the pulley assembly (3) is arranged between the first side plate (22) and the second side plate (23); the characteristics are: A brake assembly (5) is arranged between the first side plate (22) and the second side plate (23); the brake assembly (5) is arranged above the pulley assembly (3); a knob assembly (4) is installed on a side of the first side plate (22) away from the second side plate (23); an input control end of the brake assembly (5) passes through the first side plate (22) and is installed and connected to the knob assembly (4), so as to control the operation of the brake assembly (5) through the knob assembly (4).

2. A universal pulley according to claim 1, characterized in that: The pulley assembly (3) comprises a pulley (31) and a first shaft sleeve (225); one end of the first shaft sleeve (225) is fixedly disposed on a side wall of the first side plate (22) facing the top plate (21); the pulley (31) is rotatably sleeved on the outer periphery of the first shaft sleeve (225); The second side plate (23) is penetrated by a second insertion hole (231); the second side plate (23) is rotatably sleeved on the outer periphery of an end of the first shaft sleeve (225) away from one end of the first side plate (22) through the second insertion hole (231).

3. A universal pulley according to claim 2, characterized in that: The brake assembly (5) comprises an arc-shaped plate (52) and a fixing bolt (56); a plurality of inverted teeth (51) are fixedly arranged on the outer wall of the arc-shaped plate (52), and the inverted teeth (51) are arranged in a conical shape; a wire groove is provided around the outer circumference of the pulley (31); and a rope passage is formed between the side of the arc-shaped plate (52) where the inverted teeth (51) are arranged and the wire groove of the pulley (31).

4. A universal pulley according to claim 2, characterized in that: The first shaft sleeve (225) is hollow and penetrates from front to back to form a first center hole; a thread is provided in the first center hole; The pulley assembly (3) further comprises a first fixing bolt (32); the first fixing bolt (32) passes through the first central hole and is threadedly connected to the first shaft sleeve (225) to restrict the second side plate (23) on the first shaft sleeve (225).

5. The universal pulley according to claim 3, characterized in that: A fourth slot is fixedly provided on one side of the arc-shaped plate (52) away from the inverted tooth (51), and a third slot is provided at a position adjacent to the fourth slot; a ball bearing (54) is fixedly embedded in the third slot; the ball bearing (54) is hollow, forming a hollow groove; a first spring is provided in the hollow groove; a ball (53) is rotatably embedded in the top of the hollow groove of the ball bearing (54); A first connecting rod (57) is embedded in the fourth slot; a first groove (221) is provided on a side of the upper end of the first side plate (22) away from the pulley (31); the knob assembly (4) is embedded in the first groove (221); a first groove (222) and a third through hole are provided in the first groove (221); an end of the first connecting rod (57) away from the fourth slot passes through the first slot (222) and is installed and connected to the knob assembly (4); a fourth groove is provided at an end of one end of the arc plate (52); one end of the fixing bolt (56) passes through an end of one end of the arc plate (52) provided with the fourth groove; a torsion spring (55) is sleeved on the outer circumference of a portion of the fixing bolt (56) in the fourth groove; the fixing bolt (56) passes through the third through hole and is rotatably connected to the knob assembly (4); a rotating handle is fixedly provided on a side of the knob assembly (4) away from the first groove (221) for holding.

6. A universal pulley according to claim 5, characterized in that: A first limiting groove (223) is provided on one side of the first side plate (22) facing the second side plate (23) to carry and limit the ball (53); The first slot (222) is arranged in a ring shape.

7. The universal pulley according to claim 1, characterized in that: It also includes a switch assembly (8); a second slot is formed through a side of the top plate (21) away from the first side plate (22); a first plug hole (232) is formed through the second side plate (23); the switch assembly (8) sequentially passes through the first plug hole (232) and the second slot, and is slidably embedded in the second slot.

8. The universal pulley according to claim 7, characterized in that: The switch assembly (8) comprises a button (81), a receiving seat (82), a cross bar (84) and a second spring (85); the receiving seat (82) is penetrated by a first through hole; two second through holes (821) are respectively penetrated on both sides of the receiving seat (82), and the two second through holes (821) are arranged opposite to each other; two ends of the cross bar (84) respectively penetrate the corresponding second through holes (821) and are mounted in the first through hole; a third groove (811) is formed at the lower end of the button (81); the lower end of the button (81) is embedded in the first through hole, and the third groove (811) is slidably covered on the outer periphery of the cross bar (84); the second spring (85) is embedded in the first through hole and abuts against the lower end of the button (81); an end of the second spring (85) away from the button (81) is abutted against the bottom of the second slot; The switch assembly (8) further comprises a limiting column (83); a second limiting groove (822) is provided on the outer peripheral side wall of the receiving seat (82); one end of the limiting column (83) is slidably embedded in the second limiting groove, and the other end of the limiting column (83) sequentially penetrates the side wall of the second slot (224) and the outer side wall of the top plate (21) to be installed and connected to the top plate (21).

9. The universal pulley according to claim 1, characterized in that: The lower end of the first side plate (22) is flush with the lower end of the second side plate (23) and is extended downward to form an extension portion; a hanging hole is formed through the extension portion.

10. The universal pulley according to claim 1, characterized in that: It also includes a second fixing bolt (6) and a second fixing column (7); the hanging ring (1) is rotatably connected to the top plate (21) via the second fixing bolt (6); the top plate (21) is hollow inside to form a first cavity; the lower end of the second fixing bolt (6) sequentially penetrates the bottom of the hanging ring (1) and the top of the top plate (21) and extends into the first cavity; one end of the second fixing column (7) penetrates the lower end of the second fixing bolt (6) and is installed and connected to the side wall of the top plate (21).

Images