Multifunctional pulley assembly

Abstract

The utility model relates to the technical field of pulleys, and discloses a multifunctional pulley assembly which comprises a shell, the upper portion of the shell is fixedly connected with a limiting seat, the upper portion of the limiting seat is provided with a first groove, the upper portion of the shell is fixedly connected with a branching seat, and the upper portion of the shell is rotationally connected with a first guide wheel and a second guide wheel. According to the multifunctional pulley assembly, a pressing hole is a three-hole-position groove, when the multifunctional pulley assembly is used, a rope is placed on the outer side of a driving tooth and is arranged on the lower portion of a limiting plate, the left end of the rope is located between a first guide wheel and a branching base, the right end of the rope is located between a second guide wheel and the branching base, and according to the diameter of the rope, a pressing wheel is fixedly installed in the hole position groove corresponding to the pressing hole; the pressing plate body is rotated until the positioning groove is matched with the first guide wheel, the first groove and the second groove are connected through the hanging piece buckle, at the moment, the rope is clamped by the pressing wheel and the driving teeth, the friction force on the rope is improved, the pulling force on the rope is improved, and the pulley assembly is simple in structure, small in size and convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of pulleys, in particular to a multifunctional pulley assembly. Background Art

[0002] The pulley assembly is a mechanical component with a sophisticated design and a wide range of uses. It is mainly used to change the direction of movement of an object, reduce friction during movement, and can be used to transmit force or realize mechanical transmission. Existing pulley assemblies usually require workers to manually pull them, which is more laborious to use. In addition, the pulley assembly is usually large in size and not convenient to carry and use. Therefore, a corresponding multifunctional pulley assembly is proposed.

[0003] Specifically, the Chinese utility model patent with publication number CN211895843U discloses a multifunctional pulley assembly, which includes a first steel plate, a flat washer, and a nut hole. A second steel plate is mounted at the bottom end of one side of the first steel plate, and a third steel plate is mounted on the side of the second steel plate away from the first steel plate. Through holes are uniformly formed on one side of the second steel plate. A reinforcing plate is mounted on the top of each of the first and third steel plates away from the second steel plate, and a roller is mounted on the side of the reinforcing plate away from the second steel plate. A second fixed steel block is mounted on the bottom end of each of the rollers away from the second steel plate, and an anti-slip ring is provided on the outer side of each of the second fixed steel blocks. A shaft sleeve is provided on the outer side of the rollers of each of the first and third steel plates near the second steel plate. Such a multifunctional pulley assembly is installed with a second steel plate, a wheel sleeve, and an H-shaped steel. The wheel sleeve slides on the H-shaped steel. During the sliding process, bolts can be added inside the through holes in the second steel plate to hang the device on the vertical pole, thus achieving multifunctional use.

[0004] However, the multifunctional pulley block of such a structure has many components and is relatively large in overall size in practical application, which greatly affects its portability. Summary of the Invention

[0005] In view of the problem that the multifunctional pulley assembly structure is generally large in size, the purpose of the present invention is to provide a multifunctional pulley assembly with a compact overall structure and a small size, thereby effectively solving the problems in the prior art.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0007] The cam is fixedly provided with a first spring, and the cam is fixedly provided with a first gear, and the cam is fixedly provided with a first gear, and the cam is fixedly provided with a first gear, and the cam is fixedly provided with a first gear, and the cam is fixedly provided with a first gear, and the cam is fixedly provided with a first gear, and the cam is fixedly provided with a first gear, and the cam is fixedly provided with a first gear

[0008] Preferably, the pressure plate assembly includes a pressure plate body, a pressure hole, a pressure wheel, a locking screw, a rotating hole, a second groove and a positioning groove. The upper part of the pressure plate body is provided with a pressure hole, the lower part of the pressure plate body is provided with a pressure wheel, the upper part of the pressure wheel is threadedly connected with a locking screw, and the upper part of the pressure plate body is provided with a rotating hole, a second groove and a positioning groove.

[0009] Furthermore, the pressing hole is a three-hole slot, and the rotating hole is rotatably connected to the first guide wheel.

[0010] Through the above technical solution, the pressing hole is a three-hole slot. When in use, the rope is placed on the outside of the driving tooth and placed on the lower part of the limit plate. The left end of the rope is located between the first guide wheel and the branching seat, and the right end of the rope is located between the second guide wheel and the branching seat. According to the diameter of the rope, the pressing wheel is fixedly installed in the hole slot corresponding to the pressing hole (if the diameter of the rope is smaller, select the inner hole slot), rotate the pressing plate body until the positioning slot matches the first guide wheel, and use the pendant buckle to connect the first groove and the second groove. At this time, the pressing wheel and the driving tooth clamp the rope, increase the friction on the rope, and thus increase the pulling force on the rope.

[0011] Preferably, the first groove and the second groove have the same size, the first groove and the second groove are both connected to the hanger buckle, and the positioning groove is adapted to the second guide wheel.

[0012] Through the above technical solution, the first groove and the second groove are provided, which are connected with the hanging piece by snaps, and the fixing effect is good.

[0013] Preferably, the line-paying buffer includes a buffer claw, a first buffer groove, an anti-slip rib, a second buffer groove and an anti-slip rod. The front end of the buffer claw is provided with a first buffer groove and a second buffer groove. The inside of the first buffer groove is provided with an anti-slip rib, and the outside of the buffer claw is provided with an anti-slip rod. The line-paying buffer is symmetrically provided with two identical ones.

[0014] Through the above technical solution, a line-paying buffer is set up. When it is necessary to pay out the line, the rope is wrapped around the line-paying buffer to increase the friction of the line-paying and make the line-paying more stable. A first buffer groove and a second buffer groove with anti-slip ribs are provided. The friction provided by the first buffer groove is greater than the friction of the second buffer groove. When paying out the line, the first buffer groove or the second buffer groove can be selected to be interlaced and wrapped according to the mass of the objects or personnel hoisted by the pulley assembly, or they can be used in combination, which has multiple options and improves the stability during line-paying.

[0015] Preferably, the ratchet and the pawl are meshingly connected, the large gear and the small gear are meshingly connected, the connecting shaft and the shaft seat are rotatably connected, and the large gear and the driving tooth are fixedly connected.

[0016] Through the above technical solution, a ratchet and a pawl are set. When the pulley assembly is in use, the left end of the rope is fixed at a specified position, and the pendant is fixed to the hoisted object or person with a buckle. The staff uses a hand drill to insert the connecting shaft with one hand, and grasps the right end of the rope with the other hand. The hand drill is started to drive the small gear to rotate, and the small gear drives the meshing large gear to rotate. The driving teeth rotate accordingly, driving the pulley assembly to move upward, and the hoisted object or person is lifted up. During this process, the ratchet and the pawl are separated until the hoisted object or person reaches an appropriate height. The hand drill is turned off, and the first spring pushes the pawl to engage with the ratchet, thereby locking the large gear. The locking effect is good, the pulley assembly has a simple structure, and is easy to carry.

[0017] Preferably, the line-releasing assembly includes an adjusting wheel, a second spring, a telescopic rod and a turning handle, the upper portion of the adjusting wheel is fixedly connected to the second spring, the upper portion of the adjusting wheel is fixedly connected to the telescopic rod, and the upper portion of the telescopic rod is fixedly connected to the turning handle.

[0018] Through the above technical solution, a wire-paying component is provided, and the wire-paying component can be used for wire-paying.

[0019] Preferably, the cross section of the adjusting wheel is an elliptical structure, the telescopic rod is a square rod, and the turning handle is adapted to both the first limiting hole and the second limiting hole.

[0020] Through the above technical solution, when the line-releasing assembly is in the initial state, the handle is inserted into the limit slot, and the adjusting wheel does not affect the operation of the pawl. When the line needs to be released, the handle is pulled to separate from the first limit hole, the second spring is stretched, the stroke of the telescopic rod increases, and the handle is rotated until the handle corresponds to the second limit hole. When the handle is released, the second spring rebounds and drives the handle to be inserted into the second limit hole. At this time, the adjusting wheel lifts the pawl and separates it from the ratchet wheel, and the line-releasing operation can be performed. The structure is simple and easy to manufacture.

[0021] Compared with the prior art, the multifunctional pulley assembly provided by the present invention has a good locking effect, a simple structure, a compact size, and is easy to carry, and can effectively overcome the problems of the prior art.

[0022] Furthermore, the multifunctional pulley assembly provided by the present invention also has the following beneficial effects:

[0023] 1. This multifunctional pulley assembly has three-hole slots for pressing holes. When in use, place the rope on the outside of the driving teeth and place it on the lower part of the limit plate. The left end of the rope is located between the first guide wheel and the branch seat, and the right end of the rope is located between the second guide wheel and the branch seat. According to the diameter of the rope, the pressing wheel is fixedly installed in the hole slot corresponding to the pressing hole (if the rope diameter is small, choose the inner hole slot). Rotate the pressing plate body until the positioning slot matches the first guide wheel. Use the pendant buckle to connect the first groove and the second groove. At this time, the pressing wheel and the driving teeth clamp the rope, increasing the friction on the rope, thereby increasing the pulling force on the rope;

[0024] 2. This multifunctional pulley assembly is provided with a ratchet and a pawl. When the pulley assembly is in use, the left end of the rope is fixed in the specified position, and the pendant is fixed to the hoisted object or person with a buckle. The worker uses a hand drill to insert the connecting shaft with one hand and grasps the right end of the rope with the other hand. The hand drill is started to drive the small gear to rotate, and the small gear drives the meshing large gear to rotate. The driving tooth rotates accordingly, and the drive pulley assembly moves upward to lift the hoisted object or person upward. During this process, the ratchet and the pawl are separated until the hoisted object or person reaches an appropriate height. The hand drill is closed, and the first spring pushes the pawl to mesh with the ratchet, thereby locking the large gear. The locking effect is good, and it can be used for hoisting goods and personnel lifting operations. It can also be used in conjunction with other pulley groups. The hand drill can be used as a power source. It is simple to operate, can be used by one person, has a wide range of applications, and is easy to promote.

[0025] 3. The multifunctional pulley assembly is provided with a line-paying buffer. When the line needs to be paid out, the rope is wound around the line-paying buffer to increase the friction of the line-paying and make the line-paying more stable. A first buffer groove and a second buffer groove with anti-slip ribs are provided. The friction provided by the first buffer groove is greater than the friction of the second buffer groove. When paying out the line, the first buffer groove or the second buffer groove can be selected according to the quality of the objects or personnel hoisted by the pulley assembly. It can also be used in combination, with many choices, which improves the stability when paying out the line. When the line-paying assembly is in the initial state, the turning handle is inserted into the limit groove, and the adjusting wheel does not affect the operation of the pawl. When the line needs to be paid out, the turning handle is pulled to separate from the first limit hole, the second spring is stretched, the stroke of the telescopic rod increases, the turning handle is rotated until the turning handle corresponds to the second limit hole, and the turning handle is released and the second spring rebounds to drive the turning handle to insert into the second limit hole. At this time, the adjusting wheel lifts the pawl and separates it from the ratchet wheel, and the line-paying operation can be performed. The structure is simple and easy to manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of the multifunctional pulley assembly of the present invention from a first perspective;

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of the multifunctional pulley assembly of the present invention from a second perspective;

[0028] Figure 3 This is a schematic diagram of the three-dimensional structure of the multifunctional pulley assembly of the present invention from a third perspective;

[0029] Figure 4 This is a schematic diagram of the split structure of the medium pressure plate assembly of the utility model;

[0030] Figure 5 This is a schematic diagram of the disassembled structure of the shell and bottom plate in the utility model;

[0031] Figure 6 This is an enlarged structural diagram of the ratchet and pawl in the utility model;

[0032] Figure 7 This is a schematic diagram of the split structure of the wire-laying assembly in the utility model;

[0033] Figure 8 This is a schematic diagram of the enlarged structure of the wire-releasing buffer in the utility model.

[0034] Wherein: 1. Housing; 2. Limiting seat; 3. First groove; 4. Line distribution seat; 5. First guide wheel; 6. Second guide wheel; 7. Pressing plate assembly; 701. Pressing plate body; 702. Pressing hole; 703. Pressing wheel; 704. Locking screw; 705. Rotating hole; 706. Second groove; 707. Positioning slot; 8. Driving tooth; 9. Limiting plate; 10. Hanging piece; 11. Pay-off buffer; 1101. Buffer claw; 1102; A buffer groove; 1103, anti-slip rib; 1104, second buffer groove; 1105, anti-slip rod; 12, ratchet; 13, large gear; 14, pawl; 15, first spring; 16, pay-off assembly; 1601, adjusting wheel; 1602, second spring; 1603, telescopic rod; 1604, turning handle; 17, small gear; 18, connecting shaft; 19, bottom plate; 20, shaft seat; 21, first limiting hole; 22, second limiting hole. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] Example 1:

[0037] See also Figures 1 to 3 , which shows the example structure of the multifunctional pulley assembly given in this example.

[0038] Based on the diagram, the multifunctional pulley assembly is specifically composed of a shell 1, the upper part of the shell 1 is fixedly connected to a limiting seat 2, the upper part of the limiting seat 2 is provided with a first groove 3, the upper part of the shell 1 is fixedly connected to a line dividing seat 4, the upper part of the shell 1 is rotatably connected to a first guide wheel 5 and a second guide wheel 6, the outer side of the second guide wheel 6 is rotatably connected to a pressure plate assembly 7, the upper part of the shell 1 is rotatably connected to a driving tooth 8, the upper part of the driving tooth 8 is fixedly connected to a limiting plate 9, a hanger 10 is provided at the front end of the limiting seat 2, and a line-releasing buffer 11 is fixedly connected to the right side of the shell 1.

[0039] Further, see Figure 5In this example, a ratchet 12 is rotatably connected to the lower part of the shell 1, a large gear 13 is rotatably connected to the lower part of the shell 1, a pawl 14 is rotatably connected to the lower part of the shell 1, a first spring 15 is fixedly connected to the rear end of the pawl 14, a line-releasing assembly 16 is rotatably connected to the lower part of the shell 1, a small gear 17 is rotatably connected to the lower part of the shell 1, a connecting shaft 18 is fixedly connected to the lower part of the small gear 17, a bottom plate 19 is fixedly connected to the lower part of the shell 1, an axle seat 20 is fixedly connected to the lower part of the bottom plate 19, and a first limiting hole 21 and a second limiting hole 22 are opened at the lower part of the bottom plate 19.

[0040] See also Figure 4 In some embodiments of this example, the pressure plate assembly 7 in the multifunctional pulley assembly specifically includes a pressure plate body 701, a pressure hole 702, a pressure wheel 703, a locking screw 704, a rotating hole 705, a second groove 706 and a positioning groove 707.

[0041] Among them, a pressure hole 702 is opened on the upper part of the pressure plate body 701, a pressure wheel 703 is set at the lower part of the pressure plate body 701, a locking screw 704 is threadedly connected to the upper part of the pressure wheel 703, and a rotating hole 705, a second groove 706 and a positioning groove 707 are opened on the upper part of the pressure plate body 701.

[0042] Furthermore, the pressing hole 702 is a three-hole slot, and the rotating hole 705 is rotatably connected to the first guide wheel 5. The advantage is that the pressing hole 702 is a three-hole slot. When in use, the rope is placed on the outside of the driving tooth 8 and placed at the bottom of the limiting plate 9. The left end of the rope is located between the first guide wheel 5 and the branching seat 4, and the right end of the rope is located between the second guide wheel 6 and the branching seat 4. According to the diameter of the rope, the pressing wheel 703 is fixedly installed in the hole slot corresponding to the pressing hole 702 (if the diameter of the rope is small, the inner hole slot is selected), and the pressing plate body 701 is rotated until the positioning groove 707 matches the first guide wheel 5. The pendant 10 is used to snap-connect the first groove 3 and the second groove 706. At this time, the pressing wheel 703 and the driving tooth 8 clamp the rope, increasing the friction on the rope, thereby increasing the pulling force on the rope.

[0043] Furthermore, the first groove 3 and the second groove 706 have the same size, and both the first groove 3 and the second groove 706 are snap-connected with the hanger 10, and the positioning groove 707 is adapted to the second guide wheel 6. Here, the first groove 3 and the second groove 706 are snap-connected with the hanger 10, and the fixing effect is good.

[0044] See also Figure 8 In some embodiments of this example, the pay-off buffer 11 in the multifunctional pulley assembly includes a buffer claw 1101 , a first buffer groove 1102 , an anti-slip rib 1103 , a second buffer groove 1104 and an anti-slip rod 1105 .

[0045] Among them, the front end of the buffer claw 1101 is provided with a first buffer groove 1102 and a second buffer groove 1104, the inside of the first buffer groove 1102 is provided with an anti-slip rib 1103, the outside of the buffer claw 1101 is provided with an anti-slip rod 1105, and the line-releasing buffer 11 is symmetrically provided with two identical ones.

[0046] A line-releasing buffer 11 is provided in the line-releasing buffer 11 of such a structure. When the line needs to be released, the rope is wrapped around the line-releasing buffer 11 to increase the friction of the line-releasing and make the line-releasing more stable. A first buffer groove 1102 and a second buffer groove 1104 with anti-slip ribs 1103 are provided. The friction provided by the first buffer groove 1102 is greater than the friction of the second buffer groove 1104. When releasing the line, the first buffer groove 1102 or the second buffer groove 1104 can be selected to be interlaced and wrapped according to the quality of the objects or personnel hoisted by the pulley assembly, or they can be used in combination, which has many choices and improves the stability during line-releasing.

[0047] Example 2:

[0048] This example further provides an optimized and improved solution based on the solution in Example 1.

[0049] Specific combination Figure 5 and Figure 6 As shown, the ratchet 12 and the pawl 14 in the multifunctional pulley assembly are meshed, the large gear 13 and the small gear 17 are meshed, the connecting shaft 18 and the shaft seat 20 are rotationally connected, and the large gear 13 and the driving tooth 8 are fixedly connected.

[0050] The multifunctional pulley assembly is provided with a ratchet 12 and a pawl 14. When the pulley assembly is used, the left end of the rope is fixed in the specified position, and the hanger 10 is buckled and fixed to the hoisted object or person. The staff uses a hand drill to insert the connecting shaft 18 with one hand, and grasps the right end of the rope with the other hand. The hand drill is started to drive the small gear 17 to rotate, and the small gear 17 drives the meshing large gear 13 to rotate, and the driving tooth 8 rotates accordingly, driving the pulley assembly to move upward, and hoisting the hoisted object or person upward. During this process, the ratchet 12 and the pawl 14 are separated until the hoisted object or person reaches an appropriate height. The hand drill is turned off, and the first spring 15 pushes the pawl 14 to mesh with the ratchet 12, thereby locking the large gear 13. The locking effect is good, the pulley assembly has a simple structure, and is easy to carry.

[0051] See also Figure 7 In this example, the pay-off assembly 16 in the multifunctional pulley assembly specifically includes an adjusting wheel 1601 , a second spring 1602 , a telescopic rod 1603 and a turning handle 1604 .

[0052] The upper portion of the adjusting wheel 1601 is fixedly connected to the second spring 1602 , the upper portion of the adjusting wheel 1601 is fixedly connected to the telescopic rod 1603 , and the upper portion of the telescopic rod 1603 is fixedly connected to the turning handle 1604 .

[0053] Furthermore, the cross section of the adjusting wheel 1601 is an elliptical structure, the telescopic rod 1603 is a square rod, and the turning handle 1604 is adapted to both the first limiting hole 21 and the second limiting hole 22 .

[0054] When the line-releasing assembly 16 of such a structure is in the initial state, the turning handle 1604 is inserted into the limiting groove, and the adjusting wheel 1601 does not affect the operation of the pawl 14. When the line needs to be released, the turning handle 1604 is pulled to separate from the first limiting hole 21, the second spring 1602 is stretched, the stroke of the telescopic rod 1603 increases, and the turning handle 1604 is rotated until the turning handle 1604 corresponds to the second limiting hole 22. When the turning handle 1604 is released, the second spring 1602 rebounds and drives the turning handle 1604 to insert into the second limiting hole 22. At this time, the adjusting wheel 1601 lifts the pawl 14 and separates it from the ratchet 12, and the line-releasing operation can be performed. The structure is simple and easy to manufacture.

[0055] Regarding the multifunctional pulley assembly given in this example, the following example illustrates its operation process.

[0056] Here combined Figures 1 to 8 As shown, when the multifunctional pulley assembly is in use, the rope is placed outside the driving tooth 8 and placed at the lower part of the limiting plate 9. The left end of the rope is located between the first guide wheel 5 and the branching seat 4, and the right end of the rope is located between the second guide wheel 6 and the branching seat 4. According to the diameter of the rope, the pressure wheel 703 is fixedly installed in the hole groove corresponding to the pressure hole 702, and the pressure plate body 701 is rotated until the positioning groove 707 matches the first guide wheel 5. The first groove 3 and the second groove 706 are connected by a hook 10. At this time, the pressure wheel 703 and the driving tooth 8 clamp the rope, increase the friction force on the rope, thereby increasing the tension on the rope, and fixing the left end of the rope at the specified position;

[0057] The pendant 10 is buckled and fixed to the hoisted object or person. The worker uses a hand drill to insert the connecting shaft 18 with one hand, and grasps the right end of the rope with the other hand. The hand drill is started to drive the small gear 17 to rotate, and the small gear 17 drives the meshing large gear 13 to rotate. The driving tooth 8 rotates accordingly, driving the pulley assembly to move upward, and the hoisted object or person is hoisted upward.

[0058] During this process, the ratchet 12 is separated from the pawl 14 until the hoisted object or person reaches an appropriate height, the hand drill is turned off, and when releasing the line, the first buffer groove 1102 or the second buffer groove 1104 can be selected according to the quality of the hoisted object or person by the pulley assembly. It can also be used in combination. The right end of the rope is held by hand, and the handle 1604 is pulled to separate from the first limiting hole 21. The second spring 1602 is stretched, and the stroke of the telescopic rod 1603 increases. The handle 1604 is turned until the handle 1604 corresponds to the second limiting hole 22. The handle 1604 is released and the second spring 1602 rebounds to drive the handle 1604 to insert into the second limiting hole 22. At this time, the adjusting wheel 1601 lifts the pawl 14 and separates it from the ratchet 12, and the line-releasing operation can be performed to control the gripping force of the right end of the rope to perform the line-releasing operation.

[0059] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional pulley assembly, comprising a housing (1), characterized in that: The upper part of the shell (1) is fixedly connected to the limit seat (2), the upper part of the limit seat (2) is provided with a first groove (3), the upper part of the shell (1) is fixedly connected to the line splitting seat (4), the upper part of the shell (1) is rotatably connected to the first guide wheel (5) and the second guide wheel (6), the outer side of the second guide wheel (6) is rotatably connected to the pressure plate assembly (7), the upper part of the shell (1) is rotatably connected to the driving tooth (8), the upper part of the driving tooth (8) is fixedly connected to the limit plate (9), the front end of the limit seat (2) is provided with a hanger (10), the right side of the shell (1) is fixedly connected to the line release buffer (11), the lower part of the shell (1) is rotatably connected The invention relates to a ratchet (12), wherein the lower part of the housing (1) is rotatably connected to a large gear (13), the lower part of the housing (1) is rotatably connected to a ratchet (14), the rear end of the ratchet (14) is fixedly connected to a first spring (15), the lower part of the housing (1) is rotatably connected to a line-releasing assembly (16), the lower part of the housing (1) is rotatably connected to a small gear (17), the lower part of the small gear (17) is fixedly connected to a connecting shaft (18), the lower part of the housing (1) is fixedly connected to a bottom plate (19), the lower part of the bottom plate (19) is fixedly connected to an axle seat (20), and the lower part of the bottom plate (19) is provided with a first limiting hole (21) and a second limiting hole (22).

2. The multifunctional pulley assembly according to claim 1, characterized in that: The pressure plate assembly (7) comprises a pressure plate body (701), a pressure hole (702), a pressure wheel (703), a locking screw (704), a rotating hole (705), a second groove (706) and a positioning groove (707); the pressure plate body (701) is provided with a pressure hole (702) on the upper part, the pressure plate body (701) is provided with a pressure wheel (703) on the lower part, the pressure wheel (703) is threadedly connected with a locking screw (704) on the upper part, and the pressure plate body (701) is provided with a rotating hole (705), a second groove (706) and a positioning groove (707) on the upper part.

3. The multifunctional pulley assembly according to claim 2, characterized in that: The pressing hole (702) is a three-hole slot, and the rotating hole (705) is rotationally connected to the first guide wheel (5).

4. The multifunctional pulley assembly according to claim 2, characterized in that: The first groove (3) and the second groove (706) have the same size, the first groove (3) and the second groove (706) are both snap-connected to the hanging piece (10), and the positioning groove (707) is adapted to the second guide wheel (6).

5. The multifunctional pulley assembly according to claim 1, characterized in that: The line-releasing buffer (11) comprises a buffer claw (1101), a first buffer groove (1102), an anti-slip rib (1103), a second buffer groove (1104) and an anti-slip rod (1105); the first buffer groove (1102) and the second buffer groove (1104) are provided at the front end of the buffer claw (1101); the anti-slip rib (1103) is provided inside the first buffer groove (1102); and the anti-slip rod (1105) is provided outside the buffer claw (1101).

6. The multifunctional pulley assembly according to claim 1, characterized in that: The line-releasing assembly (16) comprises an adjusting wheel (1601), a second spring (1602), a telescopic rod (1603) and a turning handle (1604); the upper portion of the adjusting wheel (1601) is fixedly connected to the second spring (1602); the upper portion of the adjusting wheel (1601) is fixedly connected to the telescopic rod (1603); and the upper portion of the telescopic rod (1603) is fixedly connected to the turning handle (1604).

7. The multifunctional pulley assembly according to claim 6, characterized in that: The cross section of the regulating wheel (1601) is an elliptical structure, the telescopic rod (1603) is a square rod, and the turning handle (1604) is adapted to both the first limiting hole (21) and the second limiting hole (22).

Images