A pulley that can be easily disassembled

Abstract

The present invention discloses a pulley that is easy to disassemble and assemble, which includes a hook assembly, a locking assembly and a buckle assembly, wherein the hook assembly includes a left side wall, a right side wall, and a hook arranged between the left side wall and the right side wall; the locking assembly is arranged in the left side wall, including a locking cavity, a limiting buckle arranged in the locking cavity, and a spring connected to the limiting buckle; and the buckle assembly is connected to the locking assembly, including a locking rod and a locking ring sleeved on the locking rod; the hook (103) is sleeved on the outside of the locking rod; the radial diameter of the inner wall of the locking cavity is the same as the radial diameter of the locking rod, and a limiting cavity is further provided on the inner wall of the locking cavity; the easy-to-disassemble and assemble pulley of the present invention can conveniently disassemble, replace and reassemble the hook, so that the pulley can meet more diverse usage requirements, and the sleeve rod can be disassembled and assembled by simply pushing, which is easy to operate, has lower learning cost, is suitable for the structure of most pulleys, and has a wide range of applications.

Description

Technical Field

[0001] The present invention relates to the technical field of pulley equipment, in particular to a pulley that can be easily assembled and disassembled. Background Art

[0002] The hoisting block is an important lifting tool with a simple structure and ease of use. It can repeatedly change the direction of the pulley and tackle cable and lift or move moving objects. Blocks composed of a combination of pulleys, in particular, are widely used in construction and installation operations when used with winches, masts, or other lifting machinery. Product specifications range from 0.03 to 320 tons, with pulley systems ranging from single pulleys to pick-up pulleys. Users can choose from four types of lifting devices: hook, chain link, lifting ring, and lifting beam.

[0003] The existing pulleys all use fixed hooks, which results in the use range of the pulley being too limited and unable to meet the needs of different hooks in various situations. Therefore, a pulley with simple disassembly and assembly is proposed, which can easily disassemble, replace and reassemble the hooks, so that the pulley can meet more diverse usage needs. Summary of the Invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0005] In view of the above problems existing in the existing simple disassembly and assembly pulley, the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide a pulley that is easy to disassemble and assemble, which can conveniently disassemble, replace and reassemble the hook, so that the pulley can meet more diverse usage requirements.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a pulley that can be easily disassembled and assembled, which includes a hook assembly, a locking assembly and a buckle assembly, wherein the hook assembly includes a left side wall, a right side wall, and a hook arranged between the left side wall and the right side wall; the locking assembly is arranged in the left side wall, including a locking cavity, a limiting buckle arranged in the locking cavity, and a spring connected to the limiting buckle; and the buckle assembly is connected to the locking assembly, including a locking rod and a locking ring sleeved on the locking rod.

[0008] As a preferred solution of the pulley with easy assembly and disassembly of the present invention, the hook is sleeved on the outside of the locking rod.

[0009] As a preferred solution of the pulley with easy assembly and disassembly described in the present invention, the radial diameter of the inner wall of the locking cavity is the same as the radial diameter of the locking rod, and a limiting cavity is further provided on the inner wall of the locking cavity.

[0010] As a preferred solution of the pulley for easy disassembly and assembly described in the present invention, a sliding rod is provided in the limiting cavity, the limiting buckle is sleeved on the outside of the sliding rod and is slidably connected thereto, the vertical cross-section of the limiting buckle is a right-angled trapezoid, the spring is provided between the limiting buckle and the inner wall of the limiting cavity, and when the spring is in a natural state, the limiting buckle partially enters the locking cavity.

[0011] As a preferred solution of the easily disassembled pulley described in the present invention, the maximum radial diameter of the locking rod is equal to the radial diameter of the inner wall of the locking cavity, and the locking rod includes a locking head, a floating rod connected to the locking head, a sleeve rod connected to the floating rod, and a push rod connected to the sleeve rod.

[0012] As a preferred solution of the easily disassembled pulley described in the present invention, the radial diameter of the lock head is the same as the radial diameter of the inner wall of the locking cavity, an embedding groove is provided at the bottom of the lock head, the shape of the embedding groove is the same as that of the locking ring, and the length of the lock head is less than the distance between the inner wall of the locking cavity and the limiting cavity.

[0013] As a preferred solution of the easily disassembled pulley described in the present invention, the radial diameter of the floating rod is smaller than the radial diameter of the locking head, the locking ring is sleeved on the outside of the floating rod, the radial diameter of the locking ring is the same as the radial diameter of the inner wall of the locking cavity, and the length of the floating rod is twice the thickness of the locking ring.

[0014] As a preferred solution of the pulley with easy assembly and disassembly of the present invention, the hook is sleeved on the sleeve rod, and the sleeve rod passes through the left side wall and the right side wall.

[0015] As a preferred solution of the easily assembled and disassembled pulley of the present invention, the push rod passes through the right side wall.

[0016] As a preferred solution of the pulley with easy assembly and disassembly of the present invention, the edge of the locking ring is pointed, and its vertical cross section is complementary to the two corners in contact with the limiting buckle.

[0017] Beneficial effects of the present invention:

[0018] The simple disassembly and assembly pulley in the present invention can conveniently disassemble, replace and reassemble the hook, so that the pulley can meet more diverse usage requirements. The disassembly and assembly of the sleeve rod can be completed by simply pushing. It is easy to operate, has lower learning costs, is adaptable to the structure of most pulleys, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of the pulley that can be easily disassembled and assembled according to the present invention.

[0021] Figure 2 This is a schematic structural diagram of the locking assembly and buckle assembly of the pulley that can be easily disassembled and assembled according to the present invention.

[0022] Figure 3 This is a cross-sectional view of the locking assembly and buckle assembly structure of the pulley that can be easily disassembled and assembled according to the present invention.

[0023] Figure 4 This is a cross-sectional view of the lock head during use of the easily disassembled and assembled pulley of the present invention.

[0024] Among them, the hook assembly 100, the locking assembly 200, the buckle assembly 300, the left side wall 101, the right side wall 102, the hook 103, the locking cavity 201, the limit buckle 202, the spring 203, the locking rod 301, the locking ring 302, the limit cavity 201a, the sliding rod 201b, the locking head 301a, the floating rod 301b, the sleeve rod 301c, the push rod 301d, and the embedded groove 301a-1. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] Reference Figure 1 , which is the first embodiment of the present invention, provides a pulley that is easily assembled and disassembled, and the pulley includes a hook assembly 100, a locking assembly 200 and a buckle assembly 300, wherein the hook assembly 100 includes a left side wall 101, a right side wall 102, and a hook 103 arranged between the left side wall 101 and the right side wall 102; the locking assembly 200 is arranged in the left side wall 101, including a locking cavity 201, a limiting buckle 202 arranged in the locking cavity 201, and a spring 203 connected to the limiting buckle 202; and the buckle assembly 300 is connected to the locking assembly 200, including a locking rod 301 and a locking ring 302 sleeved on the locking rod 301.

[0028] Among them, the hook assembly 100 constitutes the basic assembly of the pulley, the locking assembly 200 is used to lock the sleeve rod of the hook 103, and the buckle assembly 300 is used to form a lock with the locking assembly 200, which can be locked and unlocked; the left side wall 101 and the right side wall 102 form the basic frame of the pulley, and the hook 103 is arranged between the left side wall 101 and the right side wall 102 for lifting the cargo; the locking cavity 201 carries the limit buckle 202 and the spring 203 and is sleeved with the locking rod 301, the limit buckle 202 is used to lock the locking rod 301 to prevent it from escaping from the locking cavity 201, the spring 203 is used to reset the limit buckle 202, and is also used to self-lock the locking rod 301, and the locking rod 301 is used for self-locking and unlocking, and is also sleeved in the hook 103, carrying the hook, and is used to connect the hook 103 when self-locking, and the hook 103 can be removed and replaced when unlocking.

[0029] Example 2

[0030] Reference Figures 2 to 4 This is the second embodiment of the present invention. This embodiment differs from the first embodiment in that the hook 103 is sleeved onto the outside of the locking rod 301. The radial diameter of the inner wall of the locking cavity 201 is the same as that of the locking rod 301. A limit cavity 201a is also defined on the inner wall of the locking cavity 201. A sliding rod 201b is disposed within the limit cavity 201a. A limit buckle 202 is sleeved onto the outside of the sliding rod 201b and slidably connected thereto. The limit buckle 202 has a right-angled trapezoidal vertical cross-section. A spring 203 is disposed between the limit buckle 202 and the inner wall of the limit cavity 201a. When the spring 203 is in its natural state, the limit buckle 202 partially enters the locking cavity 201.

[0031] The maximum radial diameter of the locking rod 301 is equal to the radial diameter of the inner wall of the locking cavity 201. The locking rod 301 comprises a locking head 301a, a floating rod 301b connected to the locking head 301a, a sleeve rod 301c connected to the floating rod 301b, and a push rod 301d connected to the sleeve rod 301c. The radial diameter of the locking head 301a is the same as the radial diameter of the inner wall of the locking cavity 201. The bottom of the locking head 301a defines an insertion groove 301a-1, which is the same shape as the locking ring 302. The length of the locking head 301a is less than the distance between the inner wall of the locking cavity 201 and the retaining cavity 201a. The radial diameter of the floating rod 301b is smaller than the radial diameter of the locking head 301a. The locking ring 302 is sleeved onto the floating rod 301b. The radial diameter of the locking ring 302 is the same as the radial diameter of the inner wall of the locking cavity 201. The length of the floating rod 301b is twice the thickness of the locking ring 302. The hook 103 is sleeved on the sleeve rod 301 c , and the sleeve rod 301 c passes through the left side wall 101 and the right side wall 102 .

[0032] The push rod 301d passes through the right side wall 102. The edge of the locking ring 302 is pointed, and the two corners of its vertical cross section that contact the limiting buckle 202 can complement each other.

[0033] Compared with Example 1, further, when self-locking is required, the hook 103 is sleeved on the outside of the locking rod 301 and is located between the left wall 101 and the right wall 102, and the push rod 301d is pushed until the lock head 301a squeezes open the limit buckle 202. At this time, the limit buckle 202 and the bottom of the lock head 301a are against each other to form a lock, and the locking rod 301 cannot be pulled out from the inside of the locking cavity 201. The limit buckle 202 is between the lock head 301a and the locking ring 302.

[0034] When unlocking, just continue to push the push rod 301d, and the locking ring 302 is pushed by the locking rod 301 to squeeze the limit buckle 202 again, and the limit buckle 202 enters the limit cavity 201a and squeezes the spring 203 until the limit buckle 202 passes the locking ring 302 and is between the locking ring 302 and the sleeve rod 301c. At this time, release the push rod 301d and pull out the push rod 301d. During the pulling out process, the locking ring 302 is lifted by the limit buckle 202 and slides on the floating rod 301b until the locking ring 302 is against the lock head 301a. An embedding groove 301a-1 is provided at the bottom, and the shape of the embedding groove 301a-1 is the same as that of the locking ring 302. The locking ring 302 enters a part of the embedding groove 301a-1. At this time, the lock head 301a and the locking ring 302 partially overlap, and an inclined surface is formed at the bottom of the lock head 301a. The limiting buckle 202 will be continuously pushed back into the limiting cavity 201a when it passes the inclined surface until it passes over the part with the same diameter of the lock head 301a and the locking ring 301a. At this time, the lock head 301a is separated from the locking cavity 201, and the locking rod 301 completes the unlocking step. You only need to repeat the above steps for subsequent use.

[0035] The remaining structures are the same as those of Example 1.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A pulley that can be easily disassembled and assembled, characterized in that: include, A hook assembly (100) comprises a left side wall (101), a right side wall (102), and a hook (103) disposed between the left side wall (101) and the right side wall (102); A locking assembly (200) is disposed in the left side wall (101), comprising a locking cavity (201), a position-limiting buckle (202) disposed in the locking cavity (201), and a spring (203) connected to the position-limiting buckle (202); and A buckle assembly (300) is connected to the locking assembly (200), comprising a locking rod (301) and a locking ring (302) sleeved on the locking rod (301); The radial diameter of the inner wall of the locking cavity (201) is the same as the radial diameter of the locking rod (301), and a limiting cavity (201a) is further provided on the inner wall of the locking cavity (201); The maximum radial diameter of the locking rod (301) is equal to the radial diameter of the inner wall of the locking cavity (201), and the locking rod (301) comprises a locking head (301a), a floating rod (301b) connected to the locking head (301a), a sleeve rod (301c) connected to the floating rod (301b), and a push rod (301d) connected to the sleeve rod (301c); The radial diameter of the locking head (301a) is the same as the radial diameter of the inner wall of the locking cavity (201); an embedding groove (301a-1) is provided at the bottom of the locking head (301a); the shape of the embedding groove (301a-1) is the same as that of the locking ring (302); and the length of the locking head (301a) is less than the distance between the inner wall of the locking cavity (201) and the limiting cavity (201a).

2. The easily detachable pulley according to claim 1, characterized in that: The hook (103) is sleeved on the outside of the locking rod (301).

3. The easily detachable pulley according to claim 2, characterized in that: A sliding rod (201b) is provided in the limiting cavity (201a); the limiting buckle (202) is sleeved on the outside of the sliding rod (201b) and is slidably connected thereto; the vertical cross-section of the limiting buckle (202) is a right-angled trapezoid; the spring (203) is provided between the limiting buckle (202) and the inner wall of the limiting cavity (201a); when the spring (203) is in a natural state, the limiting buckle (202) partially enters the locking cavity (201).

4. The easily detachable pulley according to claim 3, characterized in that: The radial diameter of the floating rod (301b) is smaller than the radial diameter of the locking head (301a); the locking ring (302) is sleeved on the outside of the floating rod (301b); the radial diameter of the locking ring (302) is the same as the radial diameter of the inner wall of the locking cavity (201); and the length of the floating rod (301b) is twice the thickness of the locking ring (302).

5. The easily detachable pulley according to claim 4, characterized in that: The hook (103) is sleeved on the sleeve rod (301c), and the sleeve rod (301c) passes through the left side wall (101) and the right side wall (102).

6. The easily detachable pulley according to claim 5, characterized in that: The push rod (301d) passes through the right side wall (102).

7. The easily detachable pulley according to claim 6, characterized in that: The edge of the locking ring (302) is pointed, and its vertical cross section is complementary to the two corners in contact with the limiting buckle (202).

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