Self-locking fastening type rotating shaft

Abstract

The utility model relates to the technical field of rotating shafts, in particular to a self-locking fastening type rotating shaft which comprises a shaft body, a locking device is arranged on the surface of the shaft body and comprises a connecting shell, the connecting shell is rotatably connected with the shaft body, a push rod is slidably connected to the inner wall of the connecting shell, one end of the push rod is fixedly connected with a push plate, and the other end of the push plate is fixedly connected with a rotating shaft. The arc surface of the push rod is fixedly connected with a limiting plate, the limiting plate is slidably connected with the connecting shell, the arc surface of the push rod is sleeved with a first spring, the two ends of the first spring are fixedly connected with the connecting shell and the limiting plate respectively, the other end of the push rod is fixedly connected with a connecting rod, and the surface of the connecting rod is slidably connected with a sliding block. According to the shaft body self-locking device, the shaft body can be freely locked, the situation that when the shaft body works, due to the fact that when the shaft body is locked, overall operation is tedious, rapid locking cannot be conducted, and operation errors possibly occur is avoided, the self-locking efficiency of the shaft body is improved, and the practicability of the shaft body is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating shafts, in particular to a self-locking fastening rotating shaft. Background Art

[0002] A shaft generally refers to an axial component that connects, supports, or rotates. In mechanical equipment, the main function of a shaft is to transmit torque and rotational power. It is an essential component of mechanical operation, used to rotate bearings that withstand both bending and torque during operation.

[0003] The above-mentioned and existing technologies have the following defects: in the actual use of the shaft, since the overall operation of locking the shaft is relatively cumbersome and cannot be locked quickly, operational errors may occur.

[0004] Therefore, a self-locking fastening type rotating shaft is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings that when locking the shaft during actual use, the overall operation is relatively cumbersome and cannot be locked quickly, which may lead to operational errors. A self-locking fastening rotating shaft is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a self-locking fastening shaft, comprising a shaft body, a locking device is provided on the surface of the shaft body, the locking device comprises a connecting shell, the connecting shell is rotatably connected to the shaft body, the inner wall of the connecting shell is slidably connected to a push rod, one end of the push rod is fixedly connected to a push plate, the arc surface of the push rod is fixedly connected to a limit plate, the limit plate is slidably connected to the connecting shell, the arc surface of the push rod is sleeved with a first spring, the two ends of the first spring are respectively fixedly connected to the connecting shell and the limit plate, and the other end of the push rod is fixed A connecting rod is connected, the surface of the connecting rod is slidably connected to a sliding block, one end of the connecting rod is fixedly connected to a top block, the arc surface of the top block is slidably connected to the top rod, one end of the top rod is fixedly connected to a first gear disk, the first gear disk is slidably connected to the connecting shell, one end of the shaft body is fixedly connected to a second gear disk, the second gear disk is meshed with the first gear disk, the surface of the connecting shell is fixedly connected to a fixed shell, the inner wall of the fixed shell is fixedly connected to a second spring, the other end of the second spring is fixedly connected to a stopper, and the stopper is slidably connected to the fixed shell and the connecting shell.

[0007] The effect achieved by the above components is: by setting a locking device, the shaft body can be freely locked by utilizing the mutual cooperation between the connecting shell, push rod, limit plate, first spring, connecting rod, sliding block, top block, top rod, first gear disc, push plate, fixed shell, second spring, stop block and second gear disc, avoiding the situation where the shaft body is working and the overall operation is cumbersome and cannot be locked quickly, which may lead to operational errors, thereby improving the self-locking efficiency of the shaft body and further improving the practicality of the shaft body.

[0008] Preferably, the top block is a semi-spherical structure.

[0009] The effect achieved by the above components is that the arc surface of the top block will move along the inclined surface of the stop block. At this time, the top block with a hemispherical structure can make the stop block irreversible.

[0010] Preferably, the vertical cross-section of the sliding block is hexagonal.

[0011] The effect achieved by the above components is that the top block will drive the sliding block to continue to move away from the shaft body. At this time, the sliding block with a hexagonal vertical cross-section will separate the stop block from the top block under the action of the first spring.

[0012] Preferably, the inclined surface of the stopper is rotatably connected to a plurality of balls, and the plurality of balls are all slidably connected to the arc surface of the top block.

[0013] The effect achieved by the above components is that the stopper drives the ball to rotate, and at this time the ball can reduce the friction between the inclined surface of the stopper and the arc surface of the top block.

[0014] Preferably, a damping rod is fixedly connected to the surface of the connecting shell, and the other end of the damping rod is fixedly connected to the stopper.

[0015] The effect achieved by the above components is that the stopper drives one end of the damping rod to move, and at this time the damping rod can prevent the second spring from jumping repeatedly.

[0016] Preferably, a friction pad is fixedly connected to the surface of the top block, and the friction pad is a rubber pad.

[0017] The effect achieved by the above components is that under the action of the first spring's own tension, the friction pad on the vertical plane of the top block will be in close contact. At this time, the friction pad made of rubber material can increase the friction between the vertical plane of the block and the vertical plane of the top block.

[0018] Preferably, the arc surface of the connecting shell is fixedly connected to an anti-slip sleeve, and the arc surface of the anti-slip sleeve is provided with a plurality of anti-slip protrusions.

[0019] The effect achieved by the above components is: hold the anti-slip cover, and then push the push plate towards the connecting shell. At this time, the anti-slip cover can increase the friction between the staff and the connecting shell.

[0020] Compared with the prior art, the advantages and positive effects of the present invention are:

[0021] 1. In the utility model, by setting a locking device, the shaft body can be freely locked by utilizing the mutual cooperation among the connecting shell, the push rod, the limit plate, the first spring, the connecting rod, the sliding block, the top block, the top rod, the first gear plate, the push plate, the fixed shell, the second spring, the stop block and the second gear plate, thereby avoiding the situation that the shaft body is unable to lock the shaft body quickly due to the overall cumbersome operation when working, resulting in possible operation errors, thereby improving the self-locking efficiency of the shaft body and further improving the practicality of the shaft body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Figure 2 For this utility model Figure 1 Schematic diagram of the cross-section structure;

[0024] Figure 3 For this utility model Figure 2 Schematic diagram of the local structure;

[0025] Figure 4 For this utility model Figure 3 A magnified view of point A;

[0026] Figure 5 For this utility model Figure 3 Enlarged view of point B.

[0027] Legend: 1. Shaft; 2. Locking device; 201. Connecting shell; 202. Push rod; 203. Limiting plate; 204. First spring; 205. Connecting rod; 206. Sliding block; 207. Top block; 208. Push rod; 209. First gear disc; 210. Push plate; 211. Fixed shell; 212. Second spring; 213. Stop block; 214. Second gear disc; 215. Damping rod; 216. Ball bearing; 217. Friction pad; 218. Anti-slip sleeve. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0030] like Figure 1-Figure 5 As shown, the utility model provides a self-locking fastening shaft, comprising a shaft body 1, and a locking device 2 is provided on the surface of the shaft body 1.

[0031] The specific configuration and function of the locking device 2 will be described in detail below.

[0032] like Figure 2-Figure 5As shown, the locking device 2 includes a connecting shell 201, which is rotatably connected to the shaft body 1, and a push rod 202 is slidably connected to the inner wall of the connecting shell 201. One end of the push rod 202 is fixedly connected to a push plate 210, and the arc surface of the push rod 202 is fixedly connected to the limit plate 203. The limit plate 203 is slidably connected to the connecting shell 201. The arc surface of the push rod 202 is sleeved with a first spring 204, and the two ends of the first spring 204 are respectively fixedly connected to the connecting shell 201 and the limit plate 203. The other end of the push rod 202 is fixedly connected to a connecting rod 205, and a sliding block 206 is slidably connected to the surface of the connecting rod 205. One end of the connecting rod 205 is fixedly connected to a top block 207, and the arc surface of the top block 207 is slidably connected to the top rod 208. One end of the top rod 208 is fixedly connected to the first toothed disc 209, and the first toothed disc 209 is slidably connected to the connecting shell 201. One end of the shaft body 1 is fixedly connected to the second toothed disc 214, and the second toothed disc 214 is meshed with the first toothed disc 209. The surface of the connecting shell 201 is fixedly connected to the fixed shell 211, and the inner wall of the fixed shell 211 is fixedly connected to the second spring 212. The other end of the second spring 212 is fixedly connected to the stopper 213, and the stopper 213 is slidably connected to the fixed shell 211 and the connecting shell 201. The top block 207 is a semi-spherical structure. The arc surface of the top block 207 will move along the inclined surface of the stopper 213. At this time, the top block 207 with a semi-spherical structure can make the stopper 213 irreversible. The vertical section of the sliding block 206 is The top block 207 will drive the sliding block 206 to continue to move in the direction away from the shaft body 1. At this time, the sliding block 206 with a hexagonal vertical cross-section will disengage the stopper 213 from the top block 207 under the action of the first spring 204. The inclined surface of the stopper 213 is connected to a plurality of balls 216, and the plurality of balls 216 are slidably connected to the arc surface of the top block 207. The stopper 213 will drive the balls 216 to rotate. At this time, the balls 216 can reduce the friction between the inclined surface of the stopper 213 and the arc surface of the top block 207. The surface of the connecting shell 201 is fixedly connected to the damping rod 215, and the other end of the damping rod 215 is fixedly connected to the stopper 213. The stopper 213 will drive one end of the damping rod 215 to move. When the damping rod 215 is turned, it can prevent the second spring 212 from jumping horizontally repeatedly. The surface of the top block 207 is fixedly connected with a friction pad 217. The friction pad 217 is a rubber pad. Under the action of the tension of the first spring 204 itself, the friction pad 217 on the vertical plane of the top block 207 will be in close contact. At this time, the friction pad 217 made of rubber material can increase the friction between the vertical plane of the stopper 213 and the vertical plane of the top block 207. The arc surface of the connecting shell 201 is fixedly connected with an anti-slip sleeve 218. The arc surface of the anti-slip sleeve 218 is provided with several anti-slip protrusions. Hold the anti-slip sleeve 218 and then push the push plate 210 in the direction close to the connecting shell 201. At this time, the anti-slip sleeve 218 can increase the friction between the staff and the connecting shell 201.

[0033] The overall working principle is that when the shaft body 1 needs to be locked, first hold the anti-slip sleeve 218, and then push the push plate 210 in the direction close to the connecting shell 201. At this time, the anti-slip sleeve 218 can increase the friction between the staff and the connecting shell 201, and then the push plate 210 will drive the push rod 202 to move synchronously, and then the push rod 202 will drive the limit plate 203 to move along the inner wall of the connecting shell 201. At this time, the limit plate 203 will drive one end of the first spring 204 to move, and at the same time, the first spring 204 itself will generate a retraction tension, and then the push rod 202 will drive the connecting rod 205 to move. At this time, the connecting rod 205 will drive the top block 207 to move, and at the same time, the arc surface of the top block 207 will move along the stop block 213. The inclined surface of the block 213 moves, and the top block 207 of the hemispherical structure can make the block 213 irreversible. At this time, the block 213 will move in the direction close to the fixed shell 211 under the action of the arc surface of the top block 207, and then the block 213 will drive the ball 216 to rotate. At this time, the ball 216 can reduce the friction between the inclined surface of the block 213 and the arc surface of the top block 207, and then the block 213 will drive one end of the second spring 212 to move. At this time, the second spring 212 itself will generate an outward elastic force, and then the block 213 will drive one end of the damping rod 215 to move. At this time, the damping rod 215 can prevent the second spring 212 from jumping repeatedly. Then the top block 207 will drive the top rod 208 to move, and the top rod 208 will The first toothed disc 209 is driven to mesh with the second toothed disc 214 on the shaft body 1. At this time, the inclined surface of the stopper 213 is out of contact with the arc surface of the top block 207. At this time, the second spring 212 will move the stopper 213 in the direction close to the connecting rod 205 under the action of its own elastic force, so that the vertical plane of the stopper 213 is in contact with the vertical plane of the top block 207. Then, under the action of the tension of the first spring 204 itself, the friction pad 217 on the vertical plane of the top block 207 is in close contact. At this time, the friction pad 217 made of rubber material can increase the friction between the vertical plane of the stopper 213 and the vertical plane of the top block 207. Then, the first toothed disc 209 will limit the position of the second toothed disc 214, and at the same time, the second toothed disc 214 will adjust the position of the shaft body 1. The first spring 204 then moves the push rod 202 in the direction away from the connecting shell 201. At this time, the push rod 202 drives the connecting rod 205 to move, and the connecting rod 205 drives the top block 207 to move.Then the top block 207 is engaged with the inclined surface of the sliding block 206, and then the top block 207 will drive the sliding block 206 to continue to move away from the shaft body 1. At this time, the sliding block 206 with a hexagonal vertical section will disengage the stopper 213 from the top block 207 under the action of the first spring 204, and the first toothed disc 209 and the second toothed disc 214 will be disengaged. By setting the locking device 2, the connecting shell 201, the push rod 202, the limit plate 203, the first spring 204, and the connecting rod 2 05. The mutual cooperation among the sliding block 206, the top block 207, the top rod 208, the first toothed disc 209, the push plate 210, the fixed housing 211, the second spring 212, the stop block 213, and the second toothed disc 214 allows the shaft body 1 to be freely locked. This avoids the possibility of operating errors caused by the cumbersome overall operation and the inability to quickly lock the shaft body 1 during operation. This improves the self-locking efficiency of the shaft body 1 and further enhances the practicality of the shaft body 1.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A self-locking fastening shaft, comprising a shaft body (1), characterized in that: The surface of the shaft body (1) is provided with a locking device (2), and the locking device (2) comprises a connecting shell (201), the connecting shell (201) is rotatably connected to the shaft body (1), the inner wall of the connecting shell (201) is slidably connected to a push rod (202), one end of the push rod (202) is fixedly connected to a push plate (210), the arc surface of the push rod (202) is fixedly connected to a limit plate (203), the limit plate (203) is slidably connected to the connecting shell (201), the arc surface of the push rod (202) is sleeved with a first spring (204), the two ends of the first spring (204) are respectively fixedly connected to the connecting shell (201) and the limit plate (203), the other end of the push rod (202) is fixedly connected to a connecting rod (205), and the surface of the connecting rod (205) is slidably connected to a sliding block. (206), one end of the connecting rod (205) is fixedly connected to a top block (207), the arc surface of the top block (207) is slidably connected to a top rod (208), one end of the top rod (208) is fixedly connected to a first toothed disc (209), the first toothed disc (209) is slidably connected to the connecting shell (201), one end of the shaft (1) is fixedly connected to a second toothed disc (214), the second toothed disc (214) is meshed with the first toothed disc (209), the surface of the connecting shell (201) is fixedly connected to a fixed shell (211), the inner wall of the fixed shell (211) is fixedly connected to a second spring (212), the other end of the second spring (212) is fixedly connected to a stopper (213), the stopper (213) is slidably connected to the fixed shell (211) and the connecting shell (201).

2. The self-locking fastening shaft according to claim 1, characterized in that: The top block (207) is a semi-spherical structure.

3. The self-locking fastening shaft according to claim 1, characterized in that: The vertical cross-section of the sliding block (206) is hexagonal.

4. The self-locking fastening shaft according to claim 2, characterized in that: The inclined surface of the stopper (213) is rotatably connected to a plurality of balls (216), and the plurality of balls (216) are all slidably connected to the arc surface of the top block (207).

5. The self-locking fastening shaft according to claim 1, characterized in that: A damping rod (215) is fixedly connected to the surface of the connecting shell (201), and the other end of the damping rod (215) is fixedly connected to a stopper (213).

6. The self-locking fastening shaft according to claim 4, characterized in that: A friction pad (217) is fixedly connected to the surface of the top block (207), and the friction pad (217) is a rubber pad.

7. The self-locking fastening shaft according to claim 1, characterized in that: The arc surface of the connecting shell (201) is fixedly connected to an anti-slip sleeve (218), and the arc surface of the anti-slip sleeve (218) is provided with a plurality of anti-slip protrusions.

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