Coupler with self-assembled disassembly structure and use method of coupler

Abstract

The invention discloses a coupler with a self-matched dismounting structure and a using method thereof. The coupler comprises symmetrical coupler half shafts, a butt joint ring of the coupler half shafts is provided with fixing mounting holes, fixing studs and fastening nuts are mounted in the holes, and dismounting assemblies are correspondingly mounted at the heads of the fixing studs; the dismounting assembly comprises a moving plate, a fixed sleeve, a movable lantern ring and an auxiliary rotating assembly and is arranged in a moving groove of the coupling half shaft. The integrated disassembly and assembly structure can be completed through manual operation without additional tools, the process is simplified, the efficiency is improved, and emergency maintenance is adapted; the lower end butt joint ring is provided with a hexagonal positioning groove for limiting and fastening the nut, follow-up rotation is avoided, and the fastening effect and the connection stability are guaranteed; the T-shaped positioning block and the positioning groove are matched for guiding, it is ensured that the movable lantern ring is precisely sleeved with the fixed stud, and the operation precision is improved.

Description

Technical Field

[0001] This invention specifically relates to a coupling with a self-disassembling structure and its usage method. Background Technology

[0002] Couplings are core components in mechanical transmission systems used to connect two shafts, enabling them to rotate together to transmit motion, torque, and power. They are widely used in various general and special-purpose machinery fields such as motors, pumps, valves, fans, machine tools, construction machinery, and conveying equipment.

[0003] In existing technologies, couplings are mainly connected by interference fit, key, expansion sleeve, and bolt fastening. For interference fit or keyed couplings, disassembly requires the use of special tools to apply axial tension, or heating the coupling to reduce the interference before separation. These methods require additional space and manpower for carrying and operating the special tools, making tool transportation and use extremely inconvenient, especially in confined working environments or field maintenance. While expansion sleeve or bolt fastening couplings are relatively easier to disassemble, tools such as wrenches and screwdrivers are still needed to remove bolts or loosen the expansion structure, making the disassembly process cumbersome. Furthermore, bolts are prone to loosening under vibration conditions, requiring additional anti-loosening structures. This increases the overall structural complexity of the coupling, and assembly and disassembly efficiency still needs improvement.

[0004] Therefore, it is necessary to invent a coupling with a self-disassembling structure and its usage method to solve the above problems. Summary of the Invention

[0005] (a) Purpose of the invention The purpose of this invention is to provide a coupling with a self-disassembling structure and its usage method.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a coupling with a self-disassembling structure, comprising symmetrically arranged coupling half-shafts, wherein the coupling half-shafts have a mating ring at the mating portion, the mating ring has a fixing mounting hole, a fixing stud and a fastening nut are installed in the fixing mounting hole, and a disassembly component is installed on the coupling half-shaft at the head position of the fixing stud, wherein the disassembly component is located at the top of the fixing stud; The coupling half-shaft housing has a movable groove opposite the mounting position of the fixed stud, and the disassembly component is installed in the movable groove; The disassembly assembly includes a movable plate, which is installed in the movable groove. A fixed sleeve is installed at the end of the movable plate, and a movable collar is installed inside the fixed sleeve. The movable collar can be sleeved on the outside of the head of the fixed stud, and an auxiliary rotation assembly is also installed on the top of the movable collar. The auxiliary rotation assembly drives the movable collar to rotate inside the fixed collar.

[0007] Preferably, the inner wall of the moving groove is provided with positioning grooves on both sides, the top of the positioning groove is closed, and the moving plate is provided with positioning blocks that match the positioning grooves on both sides. The positioning blocks and the positioning grooves are both T-shaped in cross section.

[0008] Preferably, baffles extend inward from both ends of the fixed sleeve, the movable collar is placed between the two baffles, an auxiliary roller assembly is provided on the inner wall of the fixed sleeve between the two baffles, the auxiliary roller assembly rolls on the outer wall of the movable collar, and the outer wall of the movable collar is provided with a rolling ring groove matching the auxiliary roller assembly, and the movable collar rotates as a whole within the fixed sleeve.

[0009] Preferably, the auxiliary roller assembly includes a fixed shaft fixed between the two baffles, an auxiliary roller is provided on the outer wall of the fixed shaft, the auxiliary roller rotates on the outer wall of the fixed shaft, and the outer wall of the auxiliary roller contacts the rolling ring groove.

[0010] Preferably, the inner wall of the movable collar is provided with a plurality of circumferentially arranged protrusions, the head of the fixed stud is provided with an adjusting head, and the outer wall of the adjusting head is provided with a groove that matches the protrusions of the inner wall of the movable collar, the groove being adapted to the protrusions.

[0011] Preferably, the auxiliary rotating assembly includes a fixed seat fixed to the top of the movable collar, a fixed rod is provided inside the fixed seat, an L-shaped plate is installed on the fixed rod, the end of the L-shaped plate is provided with a through hole adapted to the fixed rod, a handle is installed above the end of the L-shaped plate, and the outer wall of the handle is provided with multiple anti-slip textures.

[0012] Preferably, a pull ring is provided on the top of the movable plate near the movable groove, and the overall thickness of the movable plate is less than the thickness of the fixed sleeve and the movable collar.

[0013] Preferably, the installation positions of the movable plate, the fixed sleeve, and the movable collar are such that the movable collar can move vertically and fit perfectly to be fixed on the outside of the head of the fixed stud.

[0014] Preferably, the bottom of the lower docking ring is provided with a hexagonal positioning groove for installing the fastening nut. The hexagonal positioning groove is located outside the fixed mounting hole, and the overall size of the fastening nut matches the hexagonal positioning groove.

[0015] A method of using a coupling with a self-disassembling structure includes: S1. Connect the two symmetrically arranged coupling half shafts to make their connecting rings fit and align, ensuring that the fixing holes on the connecting rings are coaxially aligned; at this time, the hexagonal positioning groove at the bottom of the lower connecting ring is in an upward-facing operable state. S2. Place the fastening nut into the hexagonal positioning groove of the lower docking ring, and use the hexagonal positioning groove to position and limit the fastening nut. Insert the fixing stud into the fixing mounting hole of the upper docking ring, so that the threaded end of the fixing stud is threadedly connected with the fastening nut in the hexagonal positioning groove. Initially tighten the fixing stud until the two fit tightly together. S3. Hold the pull ring on the top of the moving plate and move the moving plate down along the moving groove. During the movement, make the T-shaped positioning blocks on both sides of the moving plate adapt to the T-shaped positioning groove on the inner wall of the moving groove and slide until the movable collar in the fixed sleeve moves vertically to be fitted on the outside of the adjusting head of the fixed stud head, and the protrusion on the inner wall of the movable collar and the groove on the outer wall of the adjusting head are fully adapted and engaged. S4. Hold the handle at the top of the L-shaped plate and rotate the L-shaped plate to drive the fixed seat and the movable collar to rotate synchronously. Through the cooperation of the movable collar with the protrusion and groove of the adjusting head, the fixed stud is driven to rotate synchronously until the fixed stud and the fastening nut are completely tightened, thus completing the installation and fixing of the two coupling half shafts. S5. Hold the pull ring and pull the moving plate upward to separate the movable collar from the adjusting head of the fixed stud. Move the moving plate together with the fixed sleeve, movable collar and auxiliary rotating assembly to the limit position at the top of the moving groove. After installation, reset. S6. When disassembly is required, hold the pull ring and move the moving plate downwards, so that the moving plate slides along the T-shaped positioning groove until the movable collar is once again fitted onto the outside of the adjusting head of the fixed stud head, and the protrusion and groove are fully matched and engaged. S7. Place the L-shaped plate on the fixed rod, hold the handle and rotate the L-shaped plate in the opposite direction. The auxiliary rotating component will drive the movable collar to rotate in the opposite direction, which will in turn drive the fixed stud to rotate in the opposite direction, so that the fixed stud and the fastening nut will gradually loosen. S8. After the fixing stud and the fastening nut are completely loosened, remove the L-shaped plate, hold the pull ring and pull the moving plate upward to completely separate the movable collar from the adjusting head of the fixing stud and return it to the top of the moving groove; remove the fixing stud from the fixing mounting hole, and then remove the fastening nut from the hexagonal positioning groove to complete the overall disassembly.

[0016] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of the present invention are: 1. This invention integrates the disassembly component and the auxiliary rotation component directly into the coupling half-shaft body. The disassembly and assembly process does not require additional tools such as wrenches and screwdrivers. The screws can be tightened and disassembled by manually operating the pull ring and handle, which greatly simplifies the operation process and improves the efficiency of on-site disassembly and assembly. It is especially suitable for emergency maintenance scenarios where there are no tools available. 2. The lower end of the coupling ring of the present invention is provided with a hexagonal positioning groove that matches the fastening nut, which can achieve precise circumferential positioning of the fastening nut, effectively solving the problem that the nut rotates when the fixing stud is tightened in the traditional coupling, ensuring the fastening effect of the fixing stud and the fastening nut, and improving the stability and reliability of the coupling connection. 3. The T-shaped positioning blocks on both sides of the movable plate of the present invention are adapted to slide with the T-shaped positioning groove on the inner wall of the movable groove, providing a stable moving trajectory for disassembling the components, ensuring that the movable collar can be accurately fitted on the outside of the adjusting head of the fixed stud head, and the protrusion and groove can be fully engaged, avoiding the situation where the fixed stud cannot be rotated due to positioning deviation, thus improving the accuracy of operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the split structure of the half-shaft of the present invention; Figure 3 This is a schematic diagram of the semi-axial split structure of the present invention from another perspective; Figure 4 This is a schematic diagram of the disassembly component installation structure of the present invention; Figure 5 This is a schematic diagram of the disassembly structure of the disassembly component of the present invention; Figure 6 This is a schematic diagram of the disassembled structure of the auxiliary rotating component of the present invention; Figure 7 This is a schematic diagram of the mobile board mounting structure of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Coupling half shaft; 11. Connecting ring; 12. Fixed mounting hole; 13. Moving groove; 14. Positioning groove; 15. Hexagonal positioning groove; 2. Fixed stud; 21. Adjusting head; 22. Groove; 3. Fastening nut; 4. Disassembly assembly; 41. Moving plate; 42. Fixed sleeve; 421. Baffle; 43. Movable collar; 431. Rolling ring groove; 432. Raised ridge; 44. Positioning block; 45. Auxiliary roller assembly; 451. Fixed shaft; 452. Auxiliary roller; 46. Pull ring; 5. Auxiliary rotation assembly; 51. Fixed seat; 52. Fixed rod; 53. L-shaped plate; 54. Through hole; 55. Handle; 56. Anti-slip texture. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] This invention provides, for example Figure 1-7 A self-disassembly structured coupling is shown, including symmetrically arranged coupling half-shafts 1. The coupling half-shaft 1 has a docking ring 11 at the docking part. The docking ring 11 has a fixing installation hole 12. A fixing stud 2 and a fastening nut 3 are installed in the fixing installation hole 12. A disassembly component 4 is installed on the coupling half-shaft 1 at the head position of the fixing stud 2. The disassembly component 4 is located on the top of the fixing stud 2. Specifically, a movable groove 13 is provided on the housing of the coupling half shaft 1, which is directly opposite the mounting position of the fixed stud 2, and the disassembly component 4 is installed in the movable groove 13; Specifically, the disassembly assembly 4 includes a movable plate 41, which is installed in the movable groove 13. A fixed sleeve 42 is installed at the end of the movable plate 41. A movable collar 43 is installed inside the fixed sleeve 42. The movable collar 43 can be sleeved on the outside of the head of the fixed stud 2. An auxiliary rotating assembly 5 is also installed on the top of the movable collar 43. The auxiliary rotating assembly 5 drives the movable collar 43 to rotate inside the fixed collar 42.

[0022] Specifically, the inner wall of the moving groove 13 is provided with positioning grooves 14 on both sides, the top of the positioning grooves 14 is closed, and the moving plate 41 is provided with positioning blocks 44 matching the positioning grooves 14 on both sides. The cross sections of the positioning blocks 44 and the positioning grooves 14 are both T-shaped.

[0023] Specifically, baffles 421 extend inward from the openings at both ends of the fixed sleeve 42, and the movable collar 43 is placed between the two baffles 421. An auxiliary roller assembly 45 is provided on the inner wall of the fixed sleeve 42 between the two baffles 421. The auxiliary roller assembly 45 rolls on the outer wall of the movable collar 43, and the outer wall of the movable collar 43 is provided with a rolling ring groove 431 that matches the auxiliary roller assembly 45. The movable collar 43 rotates as a whole within the fixed sleeve 42.

[0024] Specifically, the auxiliary roller assembly 45 includes a fixed shaft 451 fixed between two side baffles 421, an auxiliary roller 452 is provided on the outer wall of the fixed shaft 451, the auxiliary roller 452 rotates on the outer wall of the fixed shaft 451, and the outer wall of the auxiliary roller 452 contacts the rolling ring groove 431.

[0025] Specifically, the inner wall of the movable collar 43 is provided with a plurality of circumferentially arranged protrusions 432, the head of the fixed stud 2 is provided with an adjusting head 21, and the outer wall of the adjusting head 21 is provided with a groove 22 that matches the protrusions 432 on the inner wall of the movable collar 43. The groove 22 is adapted to the protrusions 432.

[0026] Specifically, the auxiliary rotating assembly 5 includes a fixed seat 51 fixed to the top of the movable collar 43, a fixed rod 52 is provided inside the fixed seat 51, an L-shaped plate 53 is installed on the fixed rod 52, the end of the L-shaped plate 53 is provided with a through hole 54 adapted to the fixed rod 52, a handle 55 is installed above the end of the L-shaped plate 53, and the outer wall of the handle 55 is provided with multiple anti-slip textures 56.

[0027] Specifically, a pull ring 46 is provided at the top of the movable plate 41 near the movable groove 13, and the overall thickness of the movable plate 41 is less than the thickness of the fixed sleeve 42 and the movable collar 43.

[0028] Specifically, the installation positions of the movable plate 41, the fixed sleeve 42, and the movable collar 43 are such that the movable collar 43 can move vertically and fit perfectly to be fixed on the outside of the head of the fixed stud 2.

[0029] Specifically, the bottom of the lower connecting ring 11 is provided with a hexagonal positioning groove 15 for installing the fastening nut 3. The hexagonal positioning groove 15 is located outside the fixed mounting hole 12, and the overall size of the fastening nut 3 matches the hexagonal positioning groove 15.

[0030] A method of using a coupling with a self-disassembling structure includes: S1. Connect the two symmetrically arranged coupling half shafts 1 to each other, so that the docking rings 11 of the two are in contact and aligned, and ensure that the fixing mounting holes 12 on the docking rings 11 are coaxially corresponding; at this time, the hexagonal positioning groove 15 at the bottom of the lower docking ring 11 is in an upward operable state. S2. Place the fastening nut 3 into the hexagonal positioning groove 15 of the lower docking ring 11. Use the hexagonal positioning groove 15 to position and limit the fastening nut 3. Insert the fixing stud 2 into the fixing mounting hole 12 of the upper docking ring 11 so that the threaded end of the fixing stud 2 is threadedly connected to the fastening nut 3 in the hexagonal positioning groove 15. Tighten the fixing stud 2 initially until the two fit tightly together. S3. Hold the pull ring 46 on the top of the movable plate 41 and move the movable plate 41 downward along the movable groove 13. During the movement, make the T-shaped positioning blocks 44 on both sides of the movable plate 41 adapt to the T-shaped positioning groove 14 on the inner wall of the movable groove 13 and slide until the movable collar 43 in the fixed sleeve 42 moves vertically to the outside of the adjusting head 21 that is just fitted on the head of the fixed stud 2, and the protrusion 432 on the inner wall of the movable collar 43 is fully adapted to and engaged with the groove 22 on the outer wall of the adjusting head 21. S4. Hold the handle 55 above the end of the L-shaped plate 53 and rotate the L-shaped plate 53 to drive the fixed seat 51 and the movable collar 43 to rotate synchronously. Through the cooperation of the movable collar 43 with the protrusion 432 and groove 22 of the adjusting head 21, the fixed stud 2 is driven to rotate synchronously until the fixed stud 2 and the fastening nut 3 are completely tightened, thus completing the installation and fixing of the two coupling half shafts 1. S5. Hold the pull ring 46 and pull the moving plate 41 upward to separate the movable collar 43 from the adjusting head 21 of the fixed stud 2. Move the moving plate 41 together with the fixed sleeve 42, the movable collar 43 and the auxiliary rotating assembly 5 to the limit position at the top of the moving groove 13. After installation, reset. S6. When disassembly is required, hold the pull ring 46 and move the moving plate 41 downwards so that the moving plate 41 slides along the T-shaped positioning groove 14 until the movable collar 43 is once again fitted on the outside of the adjusting head 21 of the fixed stud 2, and the protrusion 432 and the groove 22 are fully matched and engaged. S7. Place the L-shaped plate 53 on the fixed rod 52, hold the handle 55 and rotate the L-shaped plate 53 in the opposite direction. The auxiliary rotating component 5 drives the movable collar 43 to rotate in the opposite direction, which in turn drives the fixed stud 2 to rotate in the opposite direction, so that the fixed stud 2 and the fastening nut 3 gradually loosen. S8. After the fixing stud 2 and the fastening nut 3 are completely loosened, remove the L-shaped plate 53, hold the pull ring 46 and pull the moving plate 41 upward to completely separate the movable collar 43 from the adjusting head 21 of the fixing stud 2 and reset it to the top of the moving groove 13; remove the fixing stud 2 from the fixing mounting hole 12, and then remove the fastening nut 3 from the hexagonal positioning groove 15 to complete the overall disassembly.

[0031] In this embodiment, the coupling half-shaft 1 has an integrally formed docking ring 11, which has a through fixing hole 12 for inserting a fixing stud 2. A hexagonal positioning groove 15 is formed at the bottom of the lower docking ring 11. The hexagonal positioning groove 15 is coaxially arranged with the fixing hole 12 and its size matches that of the fastening nut 3, thus circumferentially limiting the fastening nut 3 and preventing it from rotating during tightening. A moving groove 13 is formed on the outer shell of the coupling half-shaft 1, directly opposite the fixing hole 12. T-shaped positioning grooves 14 are formed on both sides of the inner wall of the moving groove 13. The top of the positioning grooves 14 is closed, used for installing and disassembling the assembly 4 and limiting its movement trajectory.

[0032] Specifically, the disassembly assembly 4 includes a movable plate 41, a fixed sleeve 42, a movable collar 43, and an auxiliary roller assembly 45. The movable plate 41 is slidably installed in the movable groove 13. T-shaped positioning blocks 44 matching the positioning groove 14 are integrally formed on both sides of the movable plate 41. A pull ring 46 is fixed at the top near the movable groove 13 for easy manual pulling of the movable plate 41. A fixed sleeve 42 is welded to the end of the movable plate 41. Baffles 421 extend inward from the openings at both ends of the fixed sleeve 42. The movable collar 43 is placed between the two baffles 421 and can rotate within the fixed sleeve 42. An auxiliary roller assembly 45 is installed on the inner wall of the fixed sleeve 42 between the two baffles 421. The auxiliary roller assembly 45 includes a fixed shaft 451 fixed between the baffles 421 and an auxiliary roller 452 sleeved on the outer wall of the fixed shaft 451. A rolling ring groove 431 matching the auxiliary roller 452 is opened on the outer wall of the movable collar 43. The auxiliary roller 452 can roll in the rolling ring groove 431 to reduce the friction when the movable collar 43 rotates. The inner wall of the movable collar 43 is provided with multiple circumferentially evenly arranged protrusions 432. The head of the fixed stud 2 is integrally formed with an adjusting head 21. The outer wall of the adjusting head 21 is provided with a groove 22 that matches the protrusions 432. After the protrusions 432 and the groove 22 are engaged, they can drive the fixed stud 2 to rotate synchronously. The overall thickness of the movable plate 41 is less than the thickness of the fixed sleeve 42 and the movable collar 43, and the installation position allows the movable collar 43 to move vertically and fit precisely on the outside of the head of the fixed stud 2.

[0033] Specifically, the auxiliary rotating assembly 5 includes a fixed base 51, a fixed rod 52, an L-shaped plate 53, and a handle 55. The fixed base 51 is welded to the top of the movable collar 43, and the fixed rod 52 is vertically fixed inside the fixed base 51. The end of the L-shaped plate 53 has a through hole 54 that matches the fixed rod 52, so that it can be fitted onto the fixed rod 52. A handle 55 is welded to the upper end of the L-shaped plate 53, and the outer wall of the handle 55 has multiple anti-slip textures 56 for easy gripping and force application.

[0034] Specifically, the two symmetrically arranged coupling half-shafts 1 are aligned and connected, ensuring that their mating rings 11 fit tightly together and that the fixing mounting holes 12 are coaxially aligned. At this point, the hexagonal positioning groove 15 at the bottom of the lower mating ring 11 faces upward and is in an operable state. The fastening nut 3 is placed into the hexagonal positioning groove 15, which provides circumferential restraint. The fixing stud 2 is inserted through the fixing mounting hole 12 of the upper mating ring 11, so that the threaded end of the fixing stud 2 is threadedly connected to the fastening nut 3. The fixing stud 2 is manually tightened initially until the mating ring 11 fits tightly with the fixing stud 2 and the fastening nut 3. Holding the pull ring 46, the moving plate 41 is moved downward along the moving groove 13, allowing the T-shaped positioning block 44 to slide within the positioning groove 14 until the movable collar 43 is fitted onto the outside of the adjusting head 21, and the protrusion 432 is fully engaged with the groove 22. Place the L-shaped plate 53 onto the fixed rod 52, and rotate the L-shaped plate 53 by holding the handle 55. This will cause the movable collar 43 and the fixed stud 2 to rotate synchronously until the fixed stud 2 and the fastening nut 3 are fully tightened, completing the assembly of the coupling. Hold the pull ring 46 and pull the moving plate 41 upward to separate the movable collar 43 from the adjusting head 21. Move the moving plate 41, along with the disassembly assembly 4 and the auxiliary rotating assembly 5, to the closed end at the top of the moving groove 13 to complete the reset.

[0035] Specifically, holding the pull ring 46, slide the moving plate 41 downwards along the positioning groove 14 until the movable collar 43 is once again fitted onto the outside of the adjusting head 21, and the protrusion 432 is fully engaged with the groove 22. Place the L-shaped plate 53 onto the fixed rod 52, and holding the handle 55, rotate the L-shaped plate 53 in the opposite direction, causing the fixing stud 2 to rotate in the opposite direction, gradually loosening the fixing stud 2 and the fastening nut 3. Once the fixing stud 2 and the fastening nut 3 are completely loosened, remove the L-shaped plate 53, pull the pull ring 46 upwards to reset the disassembled assembly 4; remove the fixing stud 2 from the fixing mounting hole 12, and then remove the fastening nut 3 from the hexagonal positioning groove 15, completing the disassembly of the coupling.

[0036] In this invention, the coupling integrates a disassembly component 4 and an auxiliary rotation component 5 on its main body. During disassembly and assembly, no additional tools such as wrenches and screwdrivers are required. The screws and bolts 2 can be tightened and disassembled simply by manually operating the pull ring 46 and the handle 55, which simplifies the operation process and improves the efficiency of disassembly and assembly.

[0037] In this invention, a hexagonal positioning groove 15 is provided at the bottom of the lower end docking ring 11, which can circumferentially limit the fastening nut 3, avoid the problem of the fastening nut 3 rotating when the fixing stud 2 is tightened, ensure the fastening effect of the fixing stud 2 and the fastening nut 3, and improve the connection stability of the coupling.

[0038] In this invention, the T-shaped positioning blocks 44 on both sides of the movable plate 41 are adapted to the T-shaped positioning groove 14 on the inner wall of the movable groove 13, which can accurately limit the movement trajectory of the disassembled component 4, ensuring that the movable collar 43 can be accurately fitted on the outside of the adjusting head 21 of the fixed stud 2, and that the protrusion 432 and the groove 22 can be fully engaged, avoiding the problem that the fixed stud 2 cannot be rotated due to inaccurate positioning.

[0039] In this invention, an auxiliary roller assembly 45 is provided inside the fixed sleeve 42. The auxiliary roller 452 can roll in the rolling ring groove 431 of the movable collar 43, converting the sliding friction between the movable collar 43 and the fixed sleeve 42 into rolling friction, reducing the friction during rotation and making the operation more labor-saving.

[0040] In this invention, the disassembly component 4 and the auxiliary rotating component 5 can be stored in the moving slot 13. After resetting, they do not occupy extra space. The pull ring 46 makes it easy to manually pull and reset. The structure is compact and easy to use.

[0041] In this invention, the disassembly and assembly of the coupling are all mechanical operations, with no wear parts consumed. It can be reassembled after disassembly, has good reusability, and reduces the cost of use.

[0042] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A coupling with a self-disassembling structure, characterized in that: The coupling includes symmetrically arranged half shafts (1), the coupling half shafts (1) having a docking ring (11) at the docking part, the docking ring (11) having a fixing mounting hole (12), a fixing stud (2) and a fastening nut (3) installed in the fixing mounting hole (12), and a disassembly assembly (4) installed on the coupling half shafts (1) at the head position of the fixing stud (2), the disassembly assembly (4) being located on the top of the fixing stud (2); The coupling half shaft (1) housing is provided with a movable groove (13) facing the mounting position of the fixed stud (2), and the disassembly component (4) is installed in the movable groove (13). The disassembly assembly (4) includes a movable plate (41), which is installed in the movable groove (13). A fixed sleeve (42) is installed at the end of the movable plate (41). A movable collar (43) is installed in the fixed sleeve (42). The movable collar (43) can be sleeved on the outside of the head of the fixed stud (2). An auxiliary rotating assembly (5) is also installed on the top of the movable collar (43). The auxiliary rotating assembly (5) drives the movable collar (43) to rotate in the fixed collar (42).

2. The coupling with a self-disassembling structure according to claim 1, characterized in that: The inner wall of the moving groove (13) is provided with positioning grooves (14) on both sides. The top of the positioning groove (14) is closed. The moving plate (41) is provided with positioning blocks (44) matching the positioning groove (14) on both sides. The cross-section of the positioning block (44) and the positioning groove (14) are both T-shaped.

3. The coupling with a self-disassembling structure according to claim 1, characterized in that: Both ends of the fixed sleeve (42) have baffles (421) extending inward. The movable collar (43) is placed between the baffles (421) on both sides. An auxiliary roller assembly (45) is provided on the inner wall of the fixed sleeve (42) between the baffles (421) on both sides. The auxiliary roller assembly (45) rolls on the outer wall of the movable collar (43), and the outer wall of the movable collar (43) is provided with a rolling ring groove (431) matching the auxiliary roller assembly (45). The movable collar (43) rotates as a whole within the fixed sleeve (42).

4. The coupling with a self-disassembling structure according to claim 3, characterized in that: The auxiliary roller assembly (45) includes a fixed shaft (451) fixed between the baffles (421) on both sides. An auxiliary roller (452) is provided on the outer wall of the fixed shaft (451). The auxiliary roller (452) rotates on the outer wall of the fixed shaft (451), and the outer wall of the auxiliary roller (452) contacts the rolling ring groove (431).

5. The coupling with a self-disassembling structure according to claim 1, characterized in that: The inner wall of the movable collar (43) is provided with a plurality of circumferentially arranged protrusions (432), and the head of the fixed stud (2) is provided with an adjustment head (21). The outer wall of the adjustment head (21) is provided with a groove (22) that matches the protrusions (432) on the inner wall of the movable collar (43). The groove (22) is adapted to the protrusions (432).

6. The coupling with a self-disassembling structure according to claim 1, characterized in that: The auxiliary rotating assembly (5) includes a fixed seat (51) fixed to the top of the movable collar (43), a fixed rod (52) is provided inside the fixed seat (51), an L-shaped plate (53) is installed on the fixed rod (52), the end of the L-shaped plate (53) is provided with a through hole (54) adapted to the fixed rod (52), a handle (55) is installed above the end of the L-shaped plate (53), and the outer wall of the handle (55) is provided with multiple anti-slip textures (56).

7. The coupling with a self-disassembling structure according to claim 1, characterized in that: The top of the movable plate (41) is provided with a pull ring (46) near the movable groove (13), and the overall thickness of the movable plate (41) is less than the thickness of the fixed sleeve (42) and the movable collar (43).

8. A coupling with a self-disassembling structure according to claim 1, characterized in that: The installation positions of the movable plate (41), the fixed sleeve (42), and the movable collar (43) are such that the movable collar (43) can move vertically and fit perfectly to be fixed on the outside of the head of the fixed stud (2).

9. A coupling with a self-disassembling structure according to claim 1, characterized in that: The bottom of the lower end of the docking ring (11) is provided with a hexagonal positioning groove (15) for installing the fastening nut (3). The hexagonal positioning groove (15) is located outside the fixed mounting hole (12), and the overall size of the fastening nut (3) matches the hexagonal positioning groove (15).

10. A method of using a coupling with a self-disassembling structure according to any one of claims 1-9, characterized in that, include: S1. Connect the two symmetrically arranged coupling half shafts (1) to each other, so that the docking rings (11) of the two are in close contact and aligned, and ensure that the fixing mounting holes (12) on the docking rings (11) are coaxially aligned; at this time, the hexagonal positioning groove (15) at the bottom of the lower docking ring (11) is in an upward operable state. S2. Place the fastening nut (3) into the hexagonal positioning groove (15) of the lower docking ring (11), use the hexagonal positioning groove (15) to position and limit the fastening nut (3), insert the fixing stud (2) through the fixing mounting hole (12) of the upper docking ring (11), so that the threaded end of the fixing stud (2) is threadedly connected with the fastening nut (3) in the hexagonal positioning groove (15), and initially tighten the fixing stud (2) until the two fit tightly together; S3. Hold the pull ring (46) on the top of the movable plate (41) and move the movable plate (41) downward along the movable groove (13). During the movement, make the T-shaped positioning blocks (44) on both sides of the movable plate (41) slide with the T-shaped positioning groove (14) on the inner wall of the movable groove (13) until the movable collar (43) in the fixed sleeve (42) moves vertically to the outside of the adjusting head (21) that is just fitted on the head of the fixed stud (2), and the protrusion (432) on the inner wall of the movable collar (43) and the groove (22) on the outer wall of the adjusting head (21) are fully fitted and engaged. S4. Hold the handle (55) above the end of the L-shaped plate (53), rotate the L-shaped plate (53) to drive the fixed seat (51) and the movable collar (43) to rotate synchronously; through the cooperation of the movable collar (43) with the protrusion (432) and groove (22) of the adjusting head (21), drive the fixed stud (2) to rotate synchronously until the fixed stud (2) and the fastening nut (3) are completely tightened, and complete the installation and fixing of the two coupling half shafts (1); S5. Hold the pull ring (46) and pull the moving plate (41) upward to separate the movable collar (43) from the adjusting head (21) of the fixed stud (2). Move the moving plate (41) together with the fixed sleeve (42), the movable collar (43) and the auxiliary rotating assembly (5) to the limit position at the top of the moving groove (13). After installation, reset. S6. When disassembly is required, hold the pull ring (46) and move the moving plate (41) downwards so that the moving plate (41) slides along the T-shaped positioning groove (14) until the movable collar (43) is once again fitted on the outside of the adjusting head (21) of the fixed stud (2) and the protrusion (432) and the groove (22) are fully fitted and engaged. S7. Place the L-shaped plate (53) on the fixed rod (52), hold the handle (55) and rotate the L-shaped plate (53) in the opposite direction. The auxiliary rotating component (5) drives the movable collar (43) to rotate in the opposite direction, which in turn drives the fixed stud (2) to rotate in the opposite direction, so that the fixed stud (2) and the fastening nut (3) gradually loosen. S8. After the fixing stud (2) and the fastening nut (3) are completely loosened, remove the L-shaped plate (53), hold the pull ring (46) and pull the moving plate (41) upward to completely separate the movable collar (43) from the adjusting head (21) of the fixing stud (2) and reset it to the top of the moving groove (13); take the fixing stud (2) out of the fixing mounting hole (12) and then take the fastening nut (3) out of the hexagonal positioning groove (15) to complete the overall disassembly.

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