A multifunctional shaft connection structure
By incorporating components such as sliding grooves, plug-in rods, limit grooves, and springs, the problems of cumbersome installation and inconvenient disassembly of shafts and connectors are solved, enabling convenient installation and disassembly processes and improving the ease of use of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN YUANFENG PRECISION HARDWARE CO LTD
- Filing Date
- 2025-09-30
- Publication Date
- 2026-07-03
AI Technical Summary
In the existing technology, the connection between the shaft and the connecting parts is mostly an interference fit, which makes installation cumbersome and disassembly inconvenient.
The structure employs a multi-functional shaft connection, which, through the inclusion of connecting components such as sliding grooves, plug rods, limiting grooves, springs, and discs, enables convenient installation and disassembly of the shaft and connecting parts.
It significantly reduces assembly time, eliminates the cumbersome heating or cold fitting process required by traditional interference fits, and improves the convenience of the equipment.
Smart Images

Figure CN224453369U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shaft installation technology, and in particular to a multifunctional shaft connection structure. Background Technology
[0002] Shafts are the core basic transmission and support components in mechanical systems. They are usually cylindrical and are mainly used to support rotating parts such as gears, pulleys, and rotors, and to transmit torque, force, or motion. They also bear bending and shear loads during operation and are one of the "skeletons" that ensure the stable operation of mechanical equipment.
[0003] In the existing technology, the connection between the shaft and the connecting part is mostly done by interference fit; however, this method has obvious limitations: the shaft and the connecting part need to be processed through a cumbersome process before they can be fixed together, and if disassembly is required after fixing, the operation is also inconvenient. Therefore, it needs to be improved. Utility Model Content
[0004] The purpose of this utility model is to solve the problem of inconvenient installation and disassembly of shafts in the prior art, and to propose a multifunctional shaft connection structure.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multifunctional shaft connection structure, comprising a shaft, a connector, and a connecting assembly. The connector is slidably connected to the surface of the shaft. The connecting assembly is disposed on the shaft. The connecting assembly includes a first sliding groove, which is formed on the surface of the shaft. The first sliding groove is provided in four sets, which are evenly arranged in a circle. A plug-in rod is slidably connected to the inner wall of each of the four sets of the first sliding groove. A limiting groove is formed on the inner wall of the connector, which is provided in four sets. The plug-in rod is slidably connected to the inner wall of the limiting groove. Both ends of the plug-in rod are provided with chamfers.
[0006] Furthermore, a second slide groove is provided on the inner side wall of the first slide groove, and a rectangular plate is slidably connected to the inner wall of the second slide groove. The rectangular plate is fixedly connected to the surface of the plug rod.
[0007] Furthermore, a spring is sleeved on the surface of the plug rod, one end of the spring is fixedly connected to one side of the rectangular plate, and the other end of the spring is fixedly connected to the inner wall of the slide groove.
[0008] Furthermore, a sliding groove three is provided at the axis of the shaft, and a push rod is slidably connected to the inner wall of the sliding groove three, with the push rod abutting against the plug rod.
[0009] Furthermore, a rotating rod is rotatably connected inside the push rod, and a disk is fixedly connected to the top end of the rotating rod. A limit block is fixedly connected to the surface of the disk.
[0010] Furthermore, the limiting block is provided in four sets, and the four sets of limiting blocks are evenly arranged in a circle. The inner sidewall of the sliding groove three is provided with a limiting groove two, and the limiting block is slidably connected to the inner wall of the limiting groove two.
[0011] Furthermore, a second spring is fixedly connected to the upper surface of the push rod, and the other end of the second spring is fixedly connected to the lower surface of the disc. The second spring is sleeved on the rotating rod, and a pressing groove is formed on the upper surface of the disc.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] In this invention, a connecting assembly is provided to facilitate the installation of the shaft and the connector. In practical use, the shaft is first inserted into the connector, then a push rod is inserted into the sliding groove three on the shaft. The push rod pushes the insertion rod into the limiting groove one. At this time, the insertion rod compresses the spring one through the rectangular plate, causing the spring one to contract and fix the shaft and connector together. Then, the disc is installed downwards, and the disc compresses the spring two. The disc is then rotated through the pressing groove, causing the limiting block to engage in the limiting groove two. For disassembly, the disc is rotated in the opposite direction, causing the limiting block to disengage from the limiting groove two. The spring pushes the disc out of the sliding groove three, and then the push rod is pulled out of the shaft. At this time, the spring one is released, pushing the rectangular plate and the insertion rod out of the limiting groove one, thus separating the shaft and connector. By providing the connecting assembly, the installation and disassembly of the shaft and connector are more convenient, significantly shortening assembly time and eliminating the cumbersome heating or cold fitting process required for traditional interference fits, effectively improving the convenience of the equipment. Attached Figure Description
[0014] Figure 1 This utility model provides a three-dimensional structural diagram of a multifunctional shaft connection structure;
[0015] Figure 2 This utility model provides a structural diagram of the plug-in rod and the limiting groove in a multifunctional shaft connection structure;
[0016] Figure 3 This utility model provides a cross-sectional structural diagram of the connecting component in a multifunctional shaft connection structure;
[0017] Figure 4 This utility model provides an enlarged structural diagram of the plug rod and spring in a multifunctional shaft connection structure;
[0018] Figure 5 This utility model presents a schematic diagram of a limiting push rod in a multifunctional shaft connection structure.
[0019] Legend:
[0020] 1. Shaft; 2. Connector; 3. Connecting assembly; 31. Slide groove one; 32. Insert rod; 33. Limiting groove one; 34. Chamfer; 35. Slide groove two; 36. Rectangular plate; 37. Spring one; 38. Slide groove three; 39. Push rod; 310. Rotating rod; 311. Disc; 312. Limiting groove two; 313. Limiting block; 314. Spring two; 315. Pressing groove. Detailed Implementation
[0021] Please see Figures 1-5 This utility model provides a technical solution: a multifunctional shaft connection structure, including a shaft 1, a connector 2 and a connecting component 3, wherein the connector 2 is slidably connected to the surface of the shaft 1, and the connecting component 3 is disposed on the shaft 1.
[0022] The specific settings and functions of its connecting component 3 will be explained below.
[0023] In this embodiment: the connecting component 3 includes a sliding groove 31, which is formed on the surface of the shaft 1. There are four sets of sliding grooves 31, which are evenly arranged in a circle. The inner walls of the four sets of sliding grooves 31 are slidably connected to the plug rods 32. The inner wall of the connector 2 is provided with a limiting groove, which is formed in four sets. The plug rods 32 are slidably connected to the inner walls of the limiting grooves. Both ends of the plug rods 32 are provided with chamfers 34.
[0024] The effect achieved by the above components is that a chamfer 34 is provided on the plug rod 32, so that the plug rod 32 can be directly pushed into the limiting groove 33 by the push rod 39.
[0025] Specifically, the inner wall of the first slide groove 31 is provided with a second slide groove 35, and a rectangular plate 36 is slidably connected to the inner wall of the second slide groove 35. The rectangular plate 36 is fixedly connected to the surface of the plug rod 32.
[0026] The effect achieved by the above components is: the rectangular plate 36 is set to facilitate the compression of the spring 37.
[0027] Specifically, a spring 37 is fitted on the surface of the plug rod 32. One end of the spring 37 is fixedly connected to one side of the rectangular plate 36, and the other end of the spring 37 is fixedly connected to the inner wall of the slide groove 35.
[0028] The effect achieved by the above components is as follows: when the push rod 39 is disengaged from the slide groove 38, the spring 37 can push the plug rod 32 to disengage from the limiting groove 33.
[0029] Specifically, a sliding groove 38 is provided at the center of the shaft 1, and a push rod 39 is slidably connected to the inner wall of the sliding groove 38. The push rod 39 abuts against the plug rod 32.
[0030] The effect achieved by the above components is that the push rod 39 can be used to fix the plug rod 32.
[0031] Specifically, the push rod 39 is internally rotatably connected to a rotating rod 310, the top of the rotating rod 310 is fixedly connected to a disc 311, and the surface of the disc 311 is fixedly connected to a limit block 313.
[0032] Specifically, there are four sets of limiting blocks 313, which are evenly arranged in a circle. The inner wall of the sliding groove 38 is provided with a limiting groove 312, and the limiting blocks 313 are slidably connected to the inner wall of the limiting groove 312.
[0033] The effect achieved by the above components is that the limiting block 313 and the limiting groove 312 can fix the push rod 39.
[0034] Specifically, a second spring 314 is fixedly connected to the upper surface of the push rod 39, and the other end of the second spring 314 is fixedly connected to the lower surface of the disc 311. The second spring 314 is sleeved on the rotating rod 310, and a pressing groove 315 is opened on the upper surface of the disc 311.
[0035] The effect achieved by the above components is that the spring 314 can support the disc 311.
[0036] Working principle: By setting the connecting component 3, it is easy to install the shaft 1 and the connecting piece 2. In specific use, first insert the shaft 1 into the connecting piece 2, then insert the push rod 39 into the sliding groove 38 on the shaft 1. The push rod 39 pushes the insertion rod 32 into the limiting groove 33. At this time, the insertion rod 32 compresses the spring 37 through the rectangular plate 36. The spring 37 is then compressed, fixing the shaft 1 and the connecting piece 2 together. Then, the disc 311 is installed downwards. 11. When the spring 314 is squeezed, the disc 311 is rotated through the pressing groove 315. At this time, the limiting block 313 is inserted into the limiting groove 312. If disassembly is required, the disc 311 is rotated in the opposite direction. The limiting block 313 is disengaged from the limiting groove 312. The spring pushes the disc 311 to slide out of the sliding groove 38. Then the push rod 39 is pulled out of the shaft 1. At this time, the spring 37 is unrestrained and pushes the rectangular plate 36 and the plug rod 32 to disengage from the limiting groove 33. The shaft 1 and the connecting piece 2 are separated.
[0037] By setting up the connecting component 3, the installation and disassembly process of the shaft 1 and the connecting part 2 is more convenient, which not only significantly shortens the assembly time, but also eliminates the cumbersome process of heating or cold assembly required by traditional interference fit, thus effectively improving the convenience of the equipment.
Claims
1. A multifunctional shaft connection structure, comprising a shaft (1), a connector (2), and a connecting assembly (3), characterized in that: The connector (2) is slidably connected to the surface of the shaft (1), and the connecting assembly (3) is disposed on the shaft (1); The connecting component (3) includes a first slide groove (31), which is opened on the surface of the shaft (1). There are four sets of the first slide groove (31), which are evenly arranged in a circle. The inner walls of the four sets of the first slide groove (31) are slidably connected to the plug rod (32). The inner wall of the connector (2) is provided with a limiting groove, which is provided with four sets. The plug rod (32) is slidably connected to the inner wall of the limiting groove. Both ends of the plug rod (32) are provided with chamfers (34).
2. The multi-functional axle shaft coupling structure according to claim 1, wherein: The inner sidewall of the first slide groove (31) is provided with a second slide groove (35), and a rectangular plate (36) is slidably connected to the inner wall of the second slide groove (35). The rectangular plate (36) is fixedly connected to the surface of the plug rod (32).
3. The multi-functional axle shaft coupling structure according to claim 2, wherein: The surface of the plug rod (32) is fitted with a spring (37), one end of the spring (37) is fixedly connected to one side of the rectangular plate (36), and the other end of the spring (37) is fixedly connected to the inner wall of the slide groove (35).
4. The multi-functional axle shaft coupling structure according to claim 3, wherein: The shaft (1) has a three-slide groove (38) at its center. A push rod (39) is slidably connected to the inner wall of the three-slide groove (38). The push rod (39) abuts against the plug rod (32).
5. The multifunctional shaft connection structure according to claim 4, characterized in that: The push rod (39) is rotatably connected to a rotating rod (310), and a disc (311) is fixedly connected to the top of the rotating rod (310). A limit block (313) is fixedly connected to the surface of the disc (311).
6. The multi-functional axle shaft coupling structure according to claim 5, wherein: The limiting block (313) is provided in four sets, and the four sets of limiting blocks (313) are evenly arranged in a circle. The inner side wall of the sliding groove three (38) is provided with a limiting groove two (312), and the limiting block (313) is slidably connected to the inner wall of the limiting groove two (312).
7. The multi-functional axle shaft coupling structure according to claim 6, wherein: The upper surface of the push rod (39) is fixedly connected to a second spring (314), and the other end of the second spring (314) is fixedly connected to the lower surface of the disc (311). The second spring (314) is sleeved on the rotating rod (310), and the upper surface of the disc (311) is provided with a pressing groove (315).