Quick-release universal coupling

Abstract

The utility model discloses a quick release type universal coupling which comprises a coupling body and a rotating shaft, a connecting assembly is arranged between the coupling body and the rotating shaft, a fixing assembly is arranged in the connecting assembly, the connecting assembly comprises a connecting cylinder, a connecting column is fixedly installed on the side face of a connecting plate, and the connecting column is fixedly connected with the rotating shaft. The connecting column is inserted into the connecting cylinder, a clamping block is arranged in the connecting column in a sliding mode, a clamping groove is formed in the side wall of the connecting cylinder, and the clamping block is inserted into the clamping groove. According to the quick-release universal coupling, the clamping block is fixed, the connecting cylinder and the connecting column are completely fixed, so that the coupling is completely fixed, the fixing of the clamping block is relieved by reversely rotating an inner hexagon bolt head during disassembly, the clamping block is pressed inwards to separate the connecting cylinder from the connecting column, and the fixing of the coupling and the rotating shaft can be relieved; therefore, the coupling is convenient to mount and dismount.

Description

TECHNICAL FIELD

[0001] The utility model relates to a universal joint technical field, concretely is a quick detach type universal joint. BACKGROUND

[0002] The universal joint is a mechanical component used to connect two transmission shafts with different axes. It can realize the angular change between the two shafts within a certain angle range, thereby effectively transmitting torque and rotary motion. The universal joint has the characteristics of compact structure, high transmission efficiency and strong reliability.

[0003] The existing universal joint is generally installed by a plurality of bolt fixing installation when connecting with the two end rotating shafts, and this installation mode leads to a long time required for installation and disassembly, and the bolt holes need to be aligned for installation, which is very inconvenient.

[0004] Therefore, the utility model provides a quick detach type universal joint to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a quick detach type universal joint to solve the above problems.

[0006] To achieve the above purpose, the utility model realizes the following technical scheme: a quick detach type universal joint, comprising a shaft coupling and a rotating shaft, a connecting assembly is arranged between the shaft coupling and the rotating shaft, a fixing assembly is arranged inside the connecting assembly, the connecting assembly comprises a connecting barrel, the connecting barrel is fixedly installed at both ends of the shaft coupling, a connecting plate is fixedly installed on the side surface of the rotating shaft, a connecting column is fixedly installed on the side surface of the connecting plate, the connecting column is inserted into the connecting barrel, a clamping block is slidably arranged inside the connecting column, a clamping groove is formed in the side wall of the connecting barrel, and the clamping block is inserted into the clamping groove.

[0007] Preferably, the connecting plate is attached to the outer side wall of the connecting barrel, and the outer diameter of the connecting column is the same as the inner diameter of the connecting barrel.

[0008] The above technical scheme ensures that the connecting column is completely inserted into the connecting barrel.

[0009] Preferably, an internal groove is formed in the connecting column, a middle plate is fixedly installed inside the internal groove, a fixing column is fixedly installed inside the middle plate, a sliding groove is formed in the inner side of the clamping block, and the two ends of the fixing column are respectively inserted into the corresponding sliding grooves.

[0010] The above technical scheme limits the movement of the clamping block through the fixing column.

[0011] Preferably, a spring is fixedly installed between the inner side of the clamping block and one side of the corresponding intermediate plate, and the spring is sleeved on the outer side of the fixed column.

[0012] By the above technical scheme, the clamping block is supported and reset by the spring.

[0013] Preferably, the fixing assembly comprises a limiting groove, the limiting groove is arranged in the interior of the intermediate plate, a moving plate is slidably connected in the interior of the limiting groove, connecting frames are fixedly installed at both ends of the moving plate, stop blocks are fixedly installed at the bottom of both ends of the connecting frame, follow-up blocks are fixedly installed at both sides of the clamping block, the follow-up blocks are movably embedded in the interior of the connecting column, and the stop blocks are attached to the outer side of the corresponding follow-up block.

[0014] By the above technical scheme, the clamping block is limited by the stop block and the follow-up block.

[0015] Preferably, a screw rod is rotatably connected to the inner bottom of the limiting groove, the screw rod is screwed through the interior of the moving plate, an internal hexagonal bolt head is fixedly installed at the top of the screw rod, the internal hexagonal bolt head is rotatably connected to the inner wall at the top of the connecting column, a top hole is arranged at the top of the connecting cylinder, and the top hole is located above the internal hexagonal bolt head.

[0016] By the above technical scheme, the fixing of the clamping block can be released by the screw rod and the moving plate.

[0017] Beneficial effects

[0018] The utility model provides a quick release type universal joint. Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. The quick release type universal joint, by the inner wall of connecting cylinder continues to extrude the clamping block, when the clamping block moves to the clamping groove, under the action of spring, the clamping block resets and is inserted into the clamping groove, so that the fixing of connecting column and connecting cylinder is realized by the clamping block clamping in the clamping groove, after the fixing is completed, the joint and the rotating shaft can be pre-fixed, and the subsequent fixing of the joint is facilitated.

[0020] 2. The quick release type universal joint, by the fixing of the clamping block, the complete fixing of the connecting cylinder and the connecting column is realized, so that the complete fixing of the joint is realized, when disassembling, the internal hexagonal bolt head is reversely rotated to release the fixing of the clamping block, the clamping block is pressed inward, the connecting cylinder and the connecting column are separated, and the fixing of the joint and the rotating shaft is released, so that the purpose of convenient installation and disassembly of the joint is realized. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0022] Figure 1 is the external structure perspective view of the present application;

[0023] Figure 2 is the split structure perspective view of the connecting assembly of the present application;

[0024] Figure 3 is the internal horizontal cross-section structure perspective view of the present application;

[0025] Figure 4 is the internal vertical cross-section structure perspective view of the present application.

[0026] In the figure: 1, shaft coupling; 2, connecting assembly; 21, connecting cylinder; 22, clamping block; 23, connecting plate; 24, connecting column; 25, clamping groove; 26, internal groove; 27, intermediate plate; 28, fixing column; 29, sliding groove; 210, spring; 3, fixing assembly; 31, top hole; 32, internal hexagonal bolt head; 33, follow-up block; 34, stop block; 35, connecting frame; 36, moving plate; 37, limiting groove; 38, screw rod; 4, rotating shaft. DETAILED DESCRIPTION

[0027] It should be noted that in the description of the embodiments of the present application, the terms "front, rear, left, right, upper, lower" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "mounting", "connecting", "connected" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] The present application will be further described in detail below by means of the drawings and examples.

[0029] Reference Figures 1 to 4The embodiment of the application provides a quick-release type universal coupling, which comprises a coupling 1 and a rotating shaft 4, a connecting assembly 2 is arranged between the coupling 1 and the rotating shaft 4, an internal part of the connecting assembly 2 is provided with a fixing assembly 3, the connecting assembly 2 comprises a connecting barrel 21, the connecting barrel 21 is fixedly installed at two ends of the coupling 1, a connecting plate 23 is fixedly installed on a side of the rotating shaft 4, a connecting column 24 is fixedly installed on a side of the connecting plate 23, the connecting column 24 is inserted into the connecting barrel 21, a clamping block 22 is slidably arranged in the connecting column 24, and a clamping groove 25 is formed in a side wall of the connecting barrel 21, and the clamping block 22 is inserted into the clamping groove 25.

[0030] The connecting plate 23 is attached to an outer side wall of the connecting barrel 21, and an outer diameter of the connecting column 24 is the same as an inner diameter of the connecting barrel 21. An internal groove 26 is formed in the connecting column 24, an intermediate plate 27 is fixedly installed in the internal groove 26, a fixing column 28 is fixedly installed in the intermediate plate 27, a sliding groove 29 is formed in an inner side of the clamping block 22, and the two ends of the fixing column 28 are respectively inserted into the corresponding sliding grooves 29. A spring 210 is fixedly installed between the inner side of the clamping block 22 and one side of the corresponding intermediate plate 27, and the spring 210 is sleeved on the outer side of the fixing column 28.

[0031] In the embodiment, when the coupling 1 and the rotating shaft 4 are fixed, first, the clamping blocks 22 on both sides are pressed inwards, the springs 210 are contracted, and the connecting column 24 is inserted into the connecting barrel 21, then the clamping blocks 22 are continuously extruded by the inner wall of the connecting barrel 21 after being inserted, when the clamping blocks 22 move to the clamping grooves 25, the clamping blocks 22 are reset and inserted into the clamping grooves 25 under the action of the springs 210, so that the fixing of the connecting column 24 and the connecting barrel 21 is realized by clamping the clamping blocks 22 in the clamping grooves 25, and after the fixing is completed, the coupling 1 and the rotating shaft 4 can be pre-fixed, which facilitates the subsequent fixing of the coupling 1, and the stability of the movement of the clamping blocks 22 can be ensured by moving the fixing column 28 in the sliding grooves 29 when the clamping blocks 22 move.

[0032] Reference Figures 1 to 4 In one aspect of the embodiment, the fixing assembly 3 comprises a limiting groove 37, the limiting groove 37 is formed in the internal part of the intermediate plate 27, a moving plate 36 is slidably connected in the internal part of the limiting groove 37, the two ends of the moving plate 36 are fixedly installed with connecting frames 35, the two end bottoms of the connecting frames 35 are fixedly installed with stop blocks 34, the two sides of the clamping block 22 are fixedly installed with follow-up blocks 33, the follow-up blocks 33 are movably embedded in the internal part of the connecting column 24, and the stop blocks 34 are attached to the outer sides of the corresponding follow-up blocks 33.

[0033] A screw rod 38 is rotatably connected to the inner bottom of the limiting groove 37, the screw rod 38 is screwed through the internal part of the moving plate 36, an inner hexagonal bolt head 32 is fixedly installed on the top of the screw rod 38, the inner hexagonal bolt head 32 is rotatably connected to the inner wall on the top of the connecting column 24, a top hole 31 is formed in the top of the connecting barrel 21, and the top hole 31 is located above the inner hexagonal bolt head 32.

[0034] In this embodiment, when the two clamping blocks 22 are inserted into the clamping slots 25, the top holes 31 are just above the top of the inner hexagonal bolt heads 32. At this time, the inner hexagonal bolt heads 32 are rotated by a hexagonal wrench, and the rotation of the inner hexagonal bolt heads 32 drives the rotation of the screw rods 38. The rotation of the screw rods 38 drives the movement of the moving plates 36 along the limiting grooves 37. The downward movement of the moving plates 36 drives the synchronous downward movement of the connecting frames 35 and the stop blocks 34. The stop blocks 34 move to the outside of the follower blocks 33, and the stop blocks 34 block the follower blocks 33, thereby blocking the clamping blocks 22 and preventing the clamping blocks 22 from moving inward. The fixation of the clamping blocks 22 achieves the complete fixation of the connecting cylinder 21 and the connecting column 24, thereby achieving the complete fixation of the shaft coupling 1. When disassembling, the inner hexagonal bolt heads 32 are reversely rotated to release the fixation of the clamping blocks 22. The clamping blocks 22 are pressed inward, and the connecting cylinder 21 and the connecting column 24 are separated, thereby releasing the fixation of the shaft coupling 1 and the rotating shaft 4, and achieving the convenient installation and disassembly of the shaft coupling 1.

[0035] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0036] Working principle: when fixing the shaft coupling 1 and the rotating shaft 4, first, press the clamping blocks 22 on both sides inward, the spring 210 is contracted, and the connecting column 24 is inserted into the connecting barrel 21, and then the clamping blocks 22 are pressed through the inner wall of the connecting barrel 21, when the clamping blocks 22 move to the clamping groove 25, the clamping blocks 22 are reset and inserted into the clamping groove 25 under the action of the spring 210, so that the connecting column 24 and the connecting barrel 21 are fixed by clamping the clamping blocks 22 in the clamping groove 25, and then the shaft coupling 1 and the rotating shaft 4 are pre-fixed, which is convenient for subsequent fixing of the shaft coupling 1, and the stability of the clamping blocks 22 is ensured by moving the fixing column 28 in the sliding groove 29; when the clamping blocks 22 on both sides are inserted into the clamping groove 25, the top hole 31 is just located at the top of the inner hexagonal bolt head 32, at this time, the inner hexagonal bolt head 32 is rotated by a hexagonal wrench, the screw rod 38 is rotated by rotating the inner hexagonal bolt head 32, the moving plate 36 is moved along the limiting groove 37, the connecting frame 35 and the stop block 34 are moved downward synchronously by moving the moving plate 36 downward, the stop block 34 moves to the outer side of the follower block 33, and the follower block 33 is blocked by the stop block 34, so that the clamping blocks 22 can be blocked, and the clamping blocks 22 are prevented from moving inward, the connecting barrel 21 and the connecting column 24 are completely fixed by fixing the clamping blocks 22, so that the shaft coupling 1 is completely fixed, when disassembling, the inner hexagonal bolt head 32 is rotated in the opposite direction to release the fixation of the clamping blocks 22, and the connecting barrel 21 and the connecting column 24 are separated by pressing the clamping blocks 22 inward, so that the fixation of the shaft coupling 1 and the rotating shaft 4 is released, thereby achieving the purpose of convenient installation and disassembly of the shaft coupling 1.

[0037] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A quick-release universal joint comprising a joint (1) and a rotating shaft (4), characterized in that: The connecting assembly (2) is internally provided with a fixing assembly (3), the connecting assembly (2) comprises a connecting barrel (21), the connecting barrel (21) is fixedly installed at both ends of the shaft coupling (1), the side surface of the rotating shaft (4) is fixedly installed with a connecting plate (23), the side surface of the connecting plate (23) is fixedly installed with a connecting column (24), the connecting column (24) is inserted into the inside of the connecting barrel (21), the inside of the connecting column (24) is slidably provided with a clamping block (22), the side wall of the connecting barrel (21) is provided with a clamping groove (25), and the clamping block (22) is inserted into the clamping groove (25).

2. A quick disconnect universal joint according to claim 1, wherein: The connecting plate (23) is attached to the outer side wall of the connecting barrel (21), and the outer diameter of the connecting column (24) is the same as the inner diameter of the connecting barrel (21).

3. A quick disconnect universal joint as defined in claim 1, wherein: The inside of the connecting column (24) is provided with an internal groove (26), the internal groove (26) is fixedly installed with an intermediate plate (27), the inside of the intermediate plate (27) is fixedly installed with a fixing column (28), the inside of the clamping block (22) is provided with a sliding groove (29), and the both ends of the fixing column (28) are respectively inserted into the corresponding sliding grooves (29).

4. A quick disconnect universal joint according to claim 3, wherein: The inside of the clamping block (22) and one side of the corresponding intermediate plate (27) are fixedly installed with springs (210), and the springs (210) are sleeved on the outside of the fixing column (28).

5. A quick disconnect universal joint as defined in claim 1, wherein: The fixing assembly (3) comprises a limiting groove (37), the limiting groove (37) is arranged in the inside of the intermediate plate (27), the inside of the limiting groove (37) is slidably connected with a moving plate (36), the both ends of the moving plate (36) are fixedly installed with connecting frames (35), the both end bottoms of the connecting frames (35) are fixedly installed with stop blocks (34), the both sides of the clamping block (22) are fixedly installed with follow-up blocks (33), the follow-up blocks (33) are movably embedded in the inside of the connecting column (24), and the stop blocks (34) are attached to the outside of the corresponding follow-up blocks (33).

6. A quick disconnect universal joint according to claim 5, wherein: The inner bottom of the limiting groove (37) is rotatably connected with a screw rod (38), the screw rod (38) is screwed through the inside of the moving plate (36), the top of the screw rod (38) is fixedly installed with an internal hexagonal bolt head (32), the internal hexagonal bolt head (32) is rotatably connected to the top inner wall of the connecting column (24), the top of the connecting barrel (21) is provided with a top hole (31), and the top hole (31) is located above the internal hexagonal bolt head (32).

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