Universal shaft with dustproof mechanism

Abstract

The utility model discloses a cardan shaft with a dustproof mechanism, which comprises a shaft body, shaft pieces are oppositely arranged at two ends of the shaft body in the length direction, the cardan shaft with the dustproof mechanism further comprises a mounting seat, and the mounting seat is fixedly mounted on the surface of the shaft body. And the damping connecting end is rotationally mounted in the mounting base, and a mounting shaft is fixedly connected to one side of the damping connecting end. According to the scheme, the mounting shaft rotates around the damping connecting end, so that the connecting column and the extending column rotate synchronously, the extending column is kept in the horizontal state, and at the moment, the sleeving cover is located above the end of the shaft piece and moves downwards to drive the sleeving cover to move synchronously and sleeve the surface of the end of the shaft piece; the joint of the shaft piece and the shaft body is covered and sealed by matching with the sealing gasket, and dust can be prevented from entering the joint by covering and sealing the joint of the shaft piece and the shaft body, so that the abrasion of the shaft piece is reduced, the lubricating effect is ensured, the overall smooth rotation of the universal shaft is ensured, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of universal joint technology, and more specifically, to a universal joint with a dustproof mechanism. Background Technology

[0002] A universal joint is a mechanical component that can transmit rotational motion and torque at different angles. However, it still has some drawbacks in actual use. For example, the existing universal joint components are usually exposed. Therefore, during long-term use, dust can easily enter the connection between the component and the universal joint body, which accelerates the wear of the component, damages the lubrication effect, and makes the rotation between the component and the body less smooth. This affects the stability of the entire universal joint and reduces its practicality to some extent. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a universal joint with a dustproof mechanism to solve the problem that dust can easily enter the connection between the shaft and the shaft body, affecting the normal use of the universal joint.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a universal joint with a dustproof mechanism, comprising a shaft body, wherein shaft members are disposed opposite to each other at both ends of the shaft body along its length direction, and the universal joint with the dustproof mechanism further includes...

[0005] Mounting base, the mounting base being fixedly mounted on the surface of the shaft;

[0006] A damping connection end is rotatably mounted inside the mounting base, and a mounting shaft is fixedly connected to one side of the damping connection end.

[0007] A connecting post, the bottom of which is fixedly connected to the surface of the mounting shaft, and an extension post is provided at the top of the connecting post;

[0008] A fixing frame is fixedly installed on one side of the top surface of the extension column. A screw is threadedly installed on the top of the fixing frame. The surface of the screw is threadedly connected to one side of the extension column. A rotating end is fixedly connected to the top of the screw.

[0009] A connecting plate is rotatably mounted on the bottom end of the screw. A sleeve cover is fixedly connected to the bottom surface of the connecting plate, and the inside of the sleeve cover fits against the end of the shaft.

[0010] It also includes a sealing gasket and a mounting hole. The sealing gasket is located at the bottom edge of the sleeve cover, and the surface of the sealing gasket is in contact with the surface of the shaft end. The mounting hole is located at the top of the extension post.

[0011] It also includes a locking component, which is disposed at the top of the extension post.

[0012] The locking assembly includes a spring, a connecting plate, a column, a guide column, and a locking post. The bottom end of the spring is fixedly connected to the inside of the mounting hole, and the top end of the spring is fixedly connected to one side of the bottom surface of the connecting plate. The column is fixedly installed on the side of the bottom surface of the connecting plate opposite to the spring. The guide post is fixedly installed inside the extension column. The bottom end of the column is fixedly connected to the top of the locking post. The bottom of the locking post engages with the surface of the shaft, and the surface of the locking post slides with the inner wall of the guide post.

[0013] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0014] In the above scheme, by rotating the mounting shaft around the damping connection end, the connecting column and the extension column rotate synchronously, and the extension column remains horizontal. At this time, the sleeve cover is located above the end of the shaft. Then, rotating the rotating end causes the screw to rotate synchronously and move downward, so as to drive the sleeve cover to move synchronously and fit onto the surface of the end of the shaft. With the help of the sealing gasket, the connection between the shaft and the shaft body is covered and sealed. By covering and sealing the connection between the two, dust can be prevented from entering the connection, thereby reducing the wear of the shaft, ensuring the lubrication effect, ensuring the smooth rotation of the universal joint as a whole, and improving the practicality of the device.

[0015] After the sleeve cover is fitted onto the end of the shaft, the elastic structure of the locking component set in the mounting hole drives the locking post at the bottom of the column to move vertically downward, so that the bottom end of the locking post engages with the groove on the surface of the shaft, thereby fixing the entire extension column and ensuring the stability of the dustproof mechanism's seal at the connection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a three-dimensional assembly drawing of the overall device of this utility model;

[0018] Figure 3 This is a schematic diagram of the locking component structure of this utility model.

[0019] [Figure Labels]

[0020] 1. Shaft body; 2. Shaft component; 3. Mounting base; 4. Damping connection end; 5. Mounting shaft; 6. Connecting column; 7. Extension column; 8. Fixing bracket; 9. Screw; 10. Rotating end; 11. Connecting plate; 12. Sleeve cover; 13. Sealing gasket; 14. Mounting hole; 15. Locking assembly; 151. Spring; 152. Connecting plate; 153. Column; 154. Guide column; 155. Locking column. Detailed Implementation

[0021] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0022] As attached Figure 1 To be continued Figure 3 An embodiment of this utility model provides a universal joint with a dustproof mechanism, including a shaft body 1, with shaft members 2 disposed opposite each other at both ends of the shaft body 1 along its length. The universal joint with the dustproof mechanism also includes...

[0023] Mounting base 3 is fixedly mounted on the surface of shaft 1;

[0024] Damping connection end 4 is rotatably installed inside the mounting base 3, and a mounting shaft 5 is fixedly connected to one side of the damping connection end 4.

[0025] The bottom of the connecting post 6 is fixedly connected to the surface of the mounting shaft 5, and the top of the connecting post 6 is provided with an extension post 7.

[0026] A fixing bracket 8 is fixedly installed on one side of the top surface of the extension column 7. A screw 9 is threadedly installed on the top of the fixing bracket 8. The surface of the screw 9 is threadedly connected to one side of the extension column 7. A rotating end 10 is fixedly connected to the top of the screw 9.

[0027] The connecting plate 11 is rotatably mounted on the bottom end of the screw 9. A sleeve cover 12 is fixedly connected to the bottom surface of the connecting plate 11, and the inside of the sleeve cover 12 fits against the end of the shaft 2.

[0028] It also includes a sealing gasket 13 and a mounting hole 14. The sealing gasket 13 is located at the bottom edge of the sleeve cover 12, and the surface of the sealing gasket 13 is in contact with the surface of the end of the shaft 1. The mounting hole 14 is opened at the top of the extension post 7. Through the sealing gasket 13, in conjunction with the sleeve cover 12, the connection between the shaft 2 and the shaft 1 can be further covered and sealed, so as to avoid dust adhesion and aggravate the wear of the shaft 2.

[0029] It also includes a locking component 15, which is disposed on the top of the extension column 7.

[0030] The locking assembly 15 includes a spring 151, a connecting plate 152, a column 153, a guide column 154, and a locking column 155. The bottom end of the spring 151 is fixedly connected to the inside of the mounting hole 14, and the top end of the spring 151 is fixedly connected to one side of the bottom surface of the connecting plate 152. The column 153 is fixedly installed on the side of the bottom surface of the connecting plate 152 opposite to the spring 151. The guide column 154 is fixedly installed inside the extension column 7. The bottom end of the column 153 is fixedly connected to the top of the locking column 155. The bottom of the locking column 155 is engaged with the surface of the shaft 1. The surface of the locking column 155 is slidably connected with the inner wall of the guide column 154. Through the guide column 154, the locking column 155 can only move radially, so that it is accurately engaged with the groove on the surface of the shaft 1 to fix the extension column 7 as a whole.

[0031] The working process of this utility model is as follows: By rotating the mounting shaft 5 around the damping connection end 4, the connecting column 6 and the extension column 7 rotate synchronously, and the extension column 7 remains in a horizontal state. At this time, the sleeve cover 12 is located above the end of the shaft 2. Then, the rotating end 10 is rotated, so that the screw 9 rotates synchronously and moves down, thereby driving the sleeve cover 12 to move synchronously and fit onto the end surface of the shaft 2. The sealing gasket 13 is used to cover and seal the connection between the shaft 2 and the shaft body 1.

[0032] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0033] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A universal joint with a dustproof mechanism, comprising a shaft body (1), wherein shaft members (2) are disposed opposite each other at both ends of the shaft body (1) along its length, characterized in that, The universal joint with dustproof mechanism also includes Mounting base (3), which is fixedly mounted on the surface of the shaft (1); Damping connection end (4), the damping connection end (4) is rotatably installed inside the mounting base (3), and a mounting shaft (5) is fixedly connected to one side of the damping connection end (4); A connecting column (6) is provided, the bottom of which is fixedly connected to the surface of the mounting shaft (5), and an extension column (7) is provided at the top of the connecting column (6). A fixing frame (8) is fixedly installed on one side of the top surface of the extension column (7). A screw (9) is threadedly installed on the top of the fixing frame (8). The surface of the screw (9) is threadedly connected to one side of the extension column (7). A rotating end (10) is fixedly connected to the top of the screw (9). A connecting plate (11) is rotatably mounted on the bottom end of a screw (9). A sleeve cover (12) is fixedly connected to the bottom surface of the connecting plate (11). The inside of the sleeve cover (12) is in contact with the end of the shaft (2).

2. The universal joint with a dustproof mechanism according to claim 1, characterized in that, It also includes a sealing gasket (13) and a mounting hole (14). The sealing gasket (13) is located at the bottom edge of the sleeve cover (12), and the surface of the sealing gasket (13) is in contact with the surface of the end of the shaft (1). The mounting hole (14) is located at the top of the extension post (7).

3. The universal joint with a dustproof mechanism according to claim 1, characterized in that, It also includes a locking assembly (15) disposed on top of the extension post (7).

4. The universal joint with a dustproof mechanism according to claim 3, characterized in that, The locking assembly (15) includes a spring (151), a connecting plate (152), a column (153), a guide column (154), and a locking column (155). The bottom end of the spring (151) is fixedly connected to the inside of the mounting hole (14), and the top end of the spring (151) is fixedly connected to one side of the bottom surface of the connecting plate (152). The column (153) is fixedly installed on the side of the bottom surface of the connecting plate (152) opposite to the spring (151). The guide column (154) is fixedly installed inside the extension column (7). The bottom end of the column (153) is fixedly connected to the top of the locking column (155). The bottom of the locking column (155) is engaged with the surface of the shaft (1), and the surface of the locking column (155) is slidably connected to the inner wall of the guide column (154).

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