A quick-release pulley

Abstract

The present application relates to a quick-release pulley, which relates to the field of pulley technology. The pulley includes a hub, a connecting ring fixed to the inner ring of the hub, a bushing plugged into the inner ring of the connecting ring, a plurality of blocks rotatably connected to the bushing, and a rotating assembly arranged between the blocks and the bushing for driving the blocks to rotate; the connecting ring is provided with a slot adapted to the blocks, into which the blocks can be plugged; the bushing is also provided with a storage slot, which is connected to the slot, into which the blocks can also be plugged; the pulley also includes an anti-slip assembly arranged between the blocks and the connecting ring to prevent the blocks from being easily detached from the slot, and a fastener arranged between the bushing and the connecting ring to reinforce the connection between the two. The present application has the effect of making the connection between the bushing and the hub less susceptible to loosening due to vibration and the like, thereby improving the stability of the connection between the bushing and the hub.

Description

Technical Field

[0001] The present application relates to the field of pulley technology, and in particular to a quick-install pulley. Background Art

[0002] Pulleys are often used for transmission in industry. Pulleys are mostly cast or forged. Their transmission can mitigate load impact and run smoothly with low noise and vibration. At the same time, pulley transmission has the advantages of simple structure, easy adjustment, overload protection, and low manufacturing and installation precision requirements. Therefore, it is widely used in various industries.

[0003] At present, the pulley includes a bushing and a hub. When installing, the bushing needs to be connected to the hub. The two are usually connected by interference fit or bolt connection. However, the interference fit or bolt connection makes the connection between the bushing and the hub unstable and is easily affected by vibration, causing loosening between the bushing and the hub. If the staff cannot discover it in time, it is easy to cause a serious accident. Summary of the Invention

[0004] In order to prevent the bushing and the hub from becoming loose due to vibration and the like and to improve the stability of the connection between the bushing and the hub, the present application provides a quick-install pulley.

[0005] The present application provides a quick-install pulley, which adopts the following technical solution:

[0006] A quick-release pulley comprises a hub, a connecting ring fixed to the inner ring of the hub, a bushing plugged into the inner ring of the connecting ring, a plurality of clamping blocks rotatably connected to the bushing, and a rotating assembly disposed between the clamping blocks and the bushing for driving the clamping blocks to rotate; the connecting ring is provided with a clamping slot adapted to fit the clamping blocks, the clamping blocks being plugged into the clamping slot, and the bushing is further provided with a storage slot, the storage slot being in communication with the clamping slot, the clamping blocks also being plugged into the storage slot;

[0007] It also includes an anti-dropout component arranged between the clamping block and the connecting ring to prevent the clamping block from easily falling out of the clamping slot, and a fastener arranged between the bushing and the connecting ring to reinforce the connection between the two.

[0008] By adopting the above technical solution, when the staff assembles the pulley, they first insert the bushing into the connecting ring, and then the staff drives the block to rotate through the rotating component, so that the block is rotated out of the storage slot and continues to rotate into the slot on the connecting ring, and then fixes the block through the anti-slip component to prevent the block from shaking in the slot, and finally reinforces the bushing and the connecting ring through fasteners to realize the assembly of the pulley; the staff can realize the rapid connection between the bushing and the hub through the rotating component and the anti-slip component, and after the connection, the block is not easily affected by vibration and so on and detaches from the slot, thereby making it difficult for the bushing and the hub to loosen, thereby improving the stability of the connection between the bushing and the hub.

[0009] Optionally, the rotating assembly includes a rotating shaft rotatably connected to the bushing, and a clamping plate fixed to one end of the rotating shaft;

[0010] A clamping groove is provided on the bushing, the clamping plate is located in the clamping groove, and one end of the rotating shaft away from the clamping plate is fixedly connected to the clamping block.

[0011] By adopting the above technical solution, when the clamping block is driven to rotate by the rotating assembly, the staff first rotates the clamping plate, and the clamping plate drives the rotating shaft to rotate, and the rotating shaft can drive the clamping block fixed to it to rotate; the rotating shaft and the clamping plate make it convenient for the staff to adjust the clamping block on the outside of the bushing, thereby making it easier for the staff to control the rotation of the clamping block.

[0012] Optionally, a rotating rod is fixed to one end of the clamping plate away from the rotating shaft, and the rotating rod is located in the clamping groove.

[0013] By adopting the above technical solution, the staff rotates the rotating rod, and the rotating rod can drive the clamping plate located in the clamping groove to rotate. The rotating rod provides a force point for the staff to rotate the clamping plate, so that the staff does not need to use other tools to rotate the clamping plate, which facilitates the staff's operation.

[0014] Optionally, the anti-slip assembly includes a sliding block arranged in the card slot, an anti-slip block fixed on one side of the sliding block, a guide rod slidably connected in the connecting ring, and an anti-slip spring sleeved on the outside of the guide rod;

[0015] The rotation angle of the card block is α, 0°≤α≤90°. When the card block is rotated 90°, the end of the card block rotates out of the storage slot and one side abuts against the side wall of the storage slot and the other side abuts against the anti-slip block. A guide hole is provided in the connecting ring, and the guide rod can slide in the guide hole. The guide rod is located on the side of the sliding block away from the card block. One end of the anti-slip spring abuts against the sliding block and the other end is a free end, and the anti-slip spring is always in a compressed state.

[0016] By adopting the above technical solution, when the card block is fixed by the anti-slip assembly, the staff first drags the guide rod to the side away from the card block, the guide rod drives the sliding block to move, and the moving block drives the anti-slip block to move, then the staff rotates the card block 90°, and then the staff releases the guide rod, and the guide rod can move to the side close to the card block under the action of the anti-slip spring, so that one side of the card block abuts against the side wall of the storage slot and the other side abuts against the anti-slip block, so that the card block cannot rotate along the axis of the rotating shaft, thereby achieving the fixation of the card block; when the staff needs to release the fixation of the card block by the anti-slip assembly, they only need to drag the guide rod, and the guide rod drives the sliding block and the anti-slip block to move toward the side away from the card block, so that one side of the card block is separated from the anti-slip block, and the fixation of the card block can be released.

[0017] Optionally, the side of the anti-slip block close to the clamping block is flat, and the side away from the clamping block is chamfered, and transition arcs are provided on both sides of the clamping block in the horizontal direction.

[0018] By adopting the above technical solution, when the staff fixes the card block through the anti-slip assembly, there is no need to drag the guide rod to the side away from the card block. It is only necessary to turn the rotating shaft with force. The rotating shaft can guide and position the chamfers and transition arcs, so that the card block automatically squeezes the anti-slip block to move to the side away from the card block, thereby making the staff's operation more convenient. At the same time, the side of the anti-slip block close to the card block is flat. When the card block is inserted between the side wall of the storage slot and the anti-slip block, the card block is not easy to fall out from between the side wall of the storage slot and the anti-slip block.

[0019] Optionally, a flap is hinged on the side of the guide rod away from the sliding block, a fixing groove is provided on the connecting ring, the flap is located in the fixing groove, and a fixing component is provided between the flap and the fixing groove for fixing the flap to the fixing groove.

[0020] By adopting the above technical solution, when the staff needs to use the flap to drag the guide rod, they first release the fixed state of the fixed component, then rotate the flap, and then drag the guide rod by dragging the flap. The flap provides a force point for the staff, making it easier for the staff to move the guide rod.

[0021] Optionally, the fixing component includes a magnetic plate 1 fixed on the flip plate, and a magnetic plate 2 fixed in the fixing groove, and the magnetic plate 1 and the magnetic plate 2 are attracted to each other.

[0022] By adopting the above technical solution, the staff only needs to use the flap to lift the flap to separate the magnetic plate 1 and the magnetic plate 2; after the flap is used, the flap is rotated into the fixed groove to make the magnetic plate 1 and the magnetic plate 2 adsorbed to each other, so that the flap is not easily rotated out of the fixed groove when the pulley is working.

[0023] Optionally, the connecting ring and the wheel hub are integrally formed.

[0024] By adopting the above technical solution, the one-piece molding setting is simple and quick to manufacture, has a firm connection and high strength, so that the connection between the connecting ring and the hub is not prone to breakage, making the connection between the connecting ring and the hub more secure.

[0025] Optionally, the outer wall of the bushing and the inner wall of the connecting ring are both conical, and the fastener is a tightening bolt arranged on the side with a larger diameter of the conical surface. A tightening threaded hole is provided on the outer wall of the bushing, and a mounting hole is provided on the inner wall of the connecting ring. The tightening bolt is located in both the tightening threaded hole and the mounting hole.

[0026] By adopting the above technical solution, when the bushing and the connecting ring are reinforced by fasteners, the tightening threaded hole on the bushing is first aligned with the mounting hole on the connecting ring, and then the tightening bolt is rotated so that the tightening bolt is simultaneously engaged with the tightening threaded hole and the mounting hole, thereby achieving a reinforced connection between the bushing and the connecting ring.

[0027] Optionally, the number of the tightening bolts is set to be multiple, and the multiple tightening bolts are evenly spaced along the circumference of the bushing.

[0028] By adopting the above technical solution, the bushing is evenly distributed along its circumference, so that the connection between the bushing and the connecting ring is more stable, and the bushing is less likely to crack due to local uneven stress, thereby improving the connection between the bushing and the connecting ring.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. The staff can quickly connect the bushing and the wheel hub through the rotating assembly and the anti-detachment assembly. After the connection, the clamping block is not easily affected by vibration and so on and falls out of the slot, which makes it difficult for the bushing and the wheel hub to loosen, thus improving the stability of the connection between the bushing and the wheel hub.

[0031] 2. The rotation angle of the card block is α, 0°≤α≤90°, which limits the rotation angle of the card block, making it easier for construction workers to control the rotation angle of the card block through the rotating component, thereby facilitating the operation of the card block by construction workers;

[0032] 3. When it is necessary to release the anti-slip assembly from fixing the card block, the staff only needs to drag the flap, and the flap will drive the sliding block and the anti-slip block to move toward the side away from the card block, so that one side of the card block is separated from the anti-slip block, thereby quickly releasing the fixation of the card block;

[0033] 4. When the staff fixes the card block through the anti-slip assembly, there is no need to drag the guide rod to the side away from the card block. It is only necessary to turn the rotating shaft with force. The rotating shaft can guide and position the chamfers and transition arcs, so that the card block automatically squeezes the anti-slip block to move to the side away from the card block, making the staff's operation more convenient. At the same time, the side of the anti-slip block close to the card block is flat. When the card block is inserted between the side wall of the storage slot and the anti-slip block, the card block is not easy to fall out from between the side wall of the storage slot and the anti-slip block. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the structure of the pulley in the embodiment of the present application;

[0035] Figure 2 It is a schematic diagram showing the exploded structure of the pulley;

[0036] Figure 3 is a partial cross-sectional view showing a pulley;

[0037] Figure 4 Yes Figure 3 A schematic diagram of the partially enlarged structure of part A;

[0038] Figure 5 It is a partial cross-sectional view showing the card block located in the card slot;

[0039] Figure 6 It is a partial cross-sectional view showing the card block located in the storage slot.

[0040] Explanation of the accompanying drawings: 1. Hub; 2. Connecting ring; 21. Snap-in slot; 22. Mounting hole; 3. Bushing; 31. Storage slot; 32. Tightening threaded hole; 33. Snap-in slot; 34. Guide hole; 35. Fixing slot; 4. Block; 41. Transition arc; 5. Rotating assembly; 51. Rotating shaft; 52. Snap-in plate; 53. Rotating rod; 6. Anti-slip assembly; 61. Sliding block; 62. Guide rod; 63. Anti-slip spring; 64. Anti-slip block; 641. Chamfer; 65. Flap; 66. Fixing component; 7. Tightening bolt. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-6 This application is described in further detail.

[0042] The embodiment of the present application discloses a quick-install pulley. Figure 1 and Figure 2The pulley includes a hub 1, and a connecting ring 2 is provided on the inner ring of the hub 1. The connecting ring 2 and the hub 1 are integrally formed. The integral forming is used to prevent the connection between the connecting ring 2 and the hub 1 from breaking, making the connection between the connecting ring 2 and the hub 1 more secure. The inner ring of the connecting ring 2 is provided with a bushing 3, and the outer wall of the bushing 3 and the inner wall of the connecting ring 2 are both tapered. A plurality of clamping blocks 4 are provided in the bushing 3, preferably two, and the two clamping blocks 4 are evenly distributed along the circumference of the bushing 3, and the clamping blocks 4 are rotatably connected to the bushing 3; the connecting ring 2 is provided with a clamping groove 21 adapted for the clamping block 4, and the clamping block 4 can be inserted into the clamping groove 21. The bushing 3 is also provided with a storage groove 31, which is connected to the clamping groove 21, and the clamping block 4 can also be inserted into the storage groove 31.

[0043] Reference Figure 2 and Figure 3 A rotating assembly 5 is provided between the clamping block 4 and the bushing 3, and the rotating assembly 5 is used to drive the clamping block 4 to rotate; an anti-slip assembly 6 is also provided between the clamping block 4 and the connecting ring 2, and the anti-slip assembly 6 is used to prevent the clamping block 4 from being easily separated from the clamping groove 21. A plurality of fasteners are provided between the bushing 3 and the connecting ring 2, and the fasteners are used to reinforce the connection between the bushing 3 and the connecting ring 2. The plurality of fasteners are evenly spaced along the circumference of the bushing 3. The fastener is a tightening bolt 7 provided on the side with a larger diameter of the conical surface of the bushing 3. A tightening threaded hole 32 is provided on the outer side wall of the bushing 3, and a mounting hole 22 is provided on the inner side wall of the connecting ring 2. The tightening bolt 7 is located in both the tightening threaded hole 32 and the mounting hole 22.

[0044] When the staff assembles the pulley, they first insert the bushing 3 into the connecting ring 2, then drive the clamping block 4 to rotate through the rotating component 5, so that the clamping block 4 is rotated out of the storage slot 31 and continues to rotate into the clamping slot 21 on the connecting ring 2, and then fix the clamping block 4 through the anti-slip component 6 so that the clamping block 4 is not easy to shake in the clamping slot 21, and finally align the tightening threaded hole 32 on the bushing 3 with the mounting hole 22 on the connecting ring 2, and rotate the tightening bolt 7 so that the tightening bolt 7 is tightened at the same time. By snapping into the tightening threaded hole 32 and the mounting hole 22, the bushing 3 and the connecting ring 2 can be reinforced and connected to realize the assembly of the pulley; conversely, when the staff needs to disassemble the bushing 3, first loosen and remove the tightening bolt 7, then release the fixation of the anti-slip component 6 on the block 4, and then drive the block 4 to rotate through the rotating component 5, so that the block 4 is rotated out of the slot 21 and rotated into the storage slot 31, and then the staff takes the bushing 3 out of the wheel hub 1 to realize the disassembly of the bushing 3.

[0045] Reference Figure 4 and Figure 5The rotating assembly 5 includes a rotating shaft 51 rotatably connected to the bushing 3 and fixedly connected to the clamping block 4. A clamping plate 52 is fixedly attached to the end of the rotating shaft 51 away from the clamping block 4. The bushing 3 defines a clamping groove 33, within which the clamping plate 52 is located. A rotating rod 53 is fixedly attached to the end of the clamping plate 52 away from the rotating shaft 51. The rotating rod 53 is located within the clamping groove 33. The rotating rod 53 is used to provide a force point for a worker to rotate the clamping plate 52, allowing the worker to rotate the clamping plate 52 without the need for other tools.

[0046] When the block 4 is driven to rotate by the rotating assembly 5, the staff first rotates the rotating rod 53, and the rotating rod 53 can drive the clamping plate 52 to rotate, and the clamping plate 52 drives the rotating shaft 51 to rotate, and the rotating shaft 51 can drive the block 4 fixedly connected to it to rotate, so that the staff can adjust the block 4 on the outside of the bushing 3, which is convenient for the staff to control the rotation of the block 4.

[0047] Reference Figure 5 and Figure 6 The anti-slip assembly 6 includes a sliding block 61 disposed within the slot 21. The sliding block 61 can slide within the slot 21. A guide rod 62 is fixed to the side of the sliding block 61 away from the block 4. The connecting ring 2 defines a guide hole 34, and the guide rod 62 can slide within the guide hole 34. An anti-slip spring 63 is sleeved on the outer side of the guide rod 62. One end of the anti-slip spring 63 abuts the sliding block 61, and the other end is free. The anti-slip spring 63 is always in a compressed state.

[0048] Reference Figure 5 and Figure 6 A locking block 64 is fixedly provided on one side of the sliding block 61. The rotation angle of the card block 4 is set to α, 0°≤α≤90°. When the card block 4 rotates 90°, the end of the card block 4 rotates out of the storage slot 31, and one side of the card block 4 abuts against the side wall of the storage slot 31, and the other side abuts against the locking block 64. Transition arcs 41 are provided on both sides of the card block 4 in the horizontal direction. The side of the locking block 64 close to the card block 4 is flat, and the side away from the card block 4 is provided with a chamfer 641. The chamfer 641 and the transition arc 41 are used to guide the card block 4 into the space between the side wall of the storage slot 31 and the locking block 64, making it easier for the card block 4 to be inserted between the side wall of the storage slot 31 and the locking block 64. At the same time, the side of the locking block 64 close to the card block 4 is flat, which is used to prevent the card block 4 from easily falling out of the space between the side wall of the storage slot 31 and the locking block 64.

[0049] Reference Figure 5 and Figure 6A flap 65 is hingedly connected to the side of the guide rod 62 away from the sliding block 61. A fixing groove 35 is formed on the connecting ring 2, and the flap 65 is located in the fixing groove 35. A fixing component 66 is provided between the flap 65 and the fixing groove 35. The fixing component 66 is used to fix the flap 65 in the fixing groove 35. The fixing component 66 includes a first magnetic plate fixed to the flap 65. A second magnetic plate is fixed in the fixing groove 35. The first and second magnetic plates are attracted to each other.

[0050] When the card block 4 is fixed by the anti-slip assembly 6, the staff first rotates the rotating rod 53, and the rotating rod 53 drives the card block 4 to rotate. The chamfer 641 on the anti-slip block 64 and the guiding and positioning effect of the transition arc 41 on the card block 4 make the card block 4 automatically squeeze the anti-slip block 64 to the side away from the card block 4 and compress the anti-slip spring 63. When the staff rotates the card block 4 to 90 degrees, the guide rod 62 moves to the side close to the card block 4 under the action of the anti-slip spring 63, so that one side of the card block 4 abuts against the side wall of the storage groove 31 and the other side abuts against the anti-slip block 64, so that the card block 4 cannot rotate along the axis of the rotating shaft 51, realizing When the staff needs to release the fixation of the anti-slip assembly 6 on the card block 4, they first lift the flap 65 to separate the magnetic plate 1 and the magnetic plate 2, and then drag the flap 65 toward the side away from the card block 4, and the flap 65 can drive the guide rod 62 to move, and the guide rod 62 drives the sliding block 61 and the anti-slip block 64 to move, so that one side of the card block 4 is separated from the anti-slip block 64, and the fixation of the card block 4 can be released. After the flap 65 is used, the flap 65 is rotated into the fixed groove 35, so that the magnetic plate 1 and the magnetic plate 2 are adsorbed on each other, so that the flap 65 is not easy to be rotated out of the fixed groove 35 when the pulley is working.

[0051] The implementation principle of a quick-install pulley in the embodiment of the present application is as follows: when the staff assembles the pulley, they first insert the bushing 3 into the connecting ring 2, then align the tightening threaded hole 32 on the bushing 3 with the mounting hole 22 on the connecting ring 2, and then the staff rotates the rotating rod 53, and the rotating rod 53 drives the clamping block 4 to rotate, so that the clamping block 4 is rotated out of the storage groove 31 and continues to rotate into the clamping groove 21 on the connecting ring 2, while making one side of the clamping block 4 abut against the side wall of the storage groove 31 and the other side abut against the anti-slip block 64, so that the clamping block 4 is not easy to shake in the clamping groove 21, and then the staff rotates the tightening bolt 7 so that the tightening bolt 7 is simultaneously clamped to the tightening threaded hole 32 and the mounting hole 2 2, the bushing 3 and the connecting ring 2 can be reinforced and connected to realize the assembly of the pulley; on the contrary, when the staff needs to disassemble the bushing 3, first loosen and remove the tightening bolt 7, then release the fixation of the anti-slip component 6 on the block 4, and then drive the block 4 to rotate through the rotating component 5, so that the block 4 is rotated out of the slot 21 and rotated into the storage slot 31, and the bushing 3 can be disassembled; the staff can realize the quick connection of the bushing 3 and the wheel hub 1 through the rotating component 5 and the anti-slip component 6, and after the connection, the block 4 is not easily affected by vibration and so on to detach from the slot 21, thereby making it difficult for the bushing 3 and the wheel hub 1 to loosen, thereby improving the stability of the connection between the bushing 3 and the wheel hub 1.

[0052] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A quick-release pulley, characterized in that: The invention comprises a wheel hub (1), a connecting ring (2) fixed on the inner ring of the wheel hub (1), a bushing (3) plugged into the inner ring of the connecting ring (2), a plurality of clamping blocks (4) rotatably connected in the bushing (3), and a rotating assembly (5) arranged between the clamping blocks (4) and the bushing (3) for driving the clamping blocks (4) to rotate; a clamping groove (21) adapted to the clamping block (4) is provided on the connecting ring (2), and the clamping block (4) can be plugged into the clamping groove (21); a storage groove (31) is also provided on the bushing (3), and the storage groove (31) is communicated with the clamping groove (21), and the clamping block (4) can also be plugged into the storage groove (31); It also includes an anti-dropout component (6) disposed between the clamping block (4) and the connecting ring (2) for preventing the clamping block (4) from being easily disengaged from the clamping groove (21), and a fastener disposed between the bushing (3) and the connecting ring (2) for reinforcing the connection between the two. The rotating assembly (5) comprises a rotating shaft (51) rotatably connected to the bushing (3) and a clamping plate (52) fixed to one end of the rotating shaft (51); The bushing (3) is provided with a clamping groove (33), the clamping plate (52) is located in the clamping groove (33), and one end of the rotating shaft (51) away from the clamping plate (52) is fixedly connected to the clamping block (4); The anti-slip assembly (6) comprises a sliding block (61) arranged in the slot (21), an anti-slip block (64) fixed on one side of the sliding block (61), a guide rod (62) slidably connected in the connecting ring (2), and an anti-slip spring (63) sleeved on the outside of the guide rod (62); The rotation angle of the clamping block (4) is α, 0°≤α≤90°. When the clamping block (4) rotates 90°, the end of the clamping block (4) rotates out of the storage groove (31) and abuts against the side wall of the storage groove (31) on one side and abuts against the anti-slip block (64) on the other side. A guide hole (34) is provided in the connecting ring (2). The guide rod (62) can slide in the guide hole (34). The guide rod (62) is located on the side of the sliding block (61) away from the clamping block (4). One end of the anti-slip spring (63) abuts against the sliding block (61) and the other end is a free end. The anti-slip spring (63) is always in a compressed state. A flap (65) is hingedly connected to one side of the guide rod (62) away from the sliding block (61); a fixing groove (35) is provided on the connecting ring (2); the flap (65) is located in the fixing groove (35); and a fixing component (66) for fixing the flap (65) to the fixing groove (35) is provided between the flap (65) and the fixing groove (35).

2. The quick-install pulley according to claim 1, characterized in that: A rotating rod (53) is fixedly provided on one end of the clamping plate (52) away from the rotating shaft (51), and the rotating rod (53) is located in the clamping groove (33).

3. The quick-install pulley according to claim 1, characterized in that: The side of the anti-slip block (64) close to the clamping block (4) is flat, and the side away from the clamping block (4) is provided with a chamfer (641). Transition arcs (41) are provided on both sides of the clamping block (4) in the horizontal direction.

4. The quick-install pulley according to claim 1, characterized in that: The fixing component (66) comprises a magnetic plate 1 fixed on the flap (65) and a magnetic plate 2 fixed in the fixing groove (35), and the magnetic plate 1 and the magnetic plate 2 are attracted to each other.

5. A quick-install pulley according to any one of claims 1 to 4, characterized in that: The connecting ring (2) and the wheel hub (1) are integrally formed.

6. A quick-install pulley according to any one of claims 1 to 4, characterized in that: The outer wall of the bushing (3) and the inner wall of the connecting ring (2) are both arranged in a conical surface. The fastener is a tightening bolt (7) arranged on the side with a larger diameter of the conical surface. A tightening threaded hole (32) is provided on the outer wall of the bushing (3), and a mounting hole (22) is provided on the inner wall of the connecting ring (2). The tightening bolt (7) is located in both the tightening threaded hole (32) and the mounting hole (22).

7. The quick-install pulley according to claim 6, characterized in that: The number of the tightening bolts (7) is set to be multiple, and the multiple tightening bolts (7) are evenly spaced and distributed along the circumference of the bushing (3).

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