A quick-install anti-detachment pin shaft

Abstract

The utility model relates to the technical field related to pin shafts, and in particular to a quick-install anti-drop pin shaft, comprising a shaft body, the outer surface of the shaft body is snap-connected with a base, the outer surface of the shaft body is penetrated and connected with a bearing, the upper surface of the base is provided with a mounting mechanism, and the upper surface of the shaft body is provided with a lubrication mechanism. Through the arrangement of a first through hole, a first limiting column, a first limiting hole, a spring, a second limiting column, a second limiting hole, a second through hole, and a third limiting column, when the shaft body needs to be installed, the base is first connected to the bearing using the shaft body, and then the first limiting column is inserted into the first through hole, and then the second limiting column is pressed to retract the spring into the first limiting hole, and the first limiting column is pushed to align the second limiting column with the second limiting hole, and the second limiting column is released to make the second limiting column snap-fit ​​into the second limiting hole, and then the third limiting column is installed in the second through hole to prevent the shaft body from shaking.

Description

Technical Field

[0001] The utility model relates to the technical field related to pin shafts, in particular to a quick-install anti-dropping pin shaft. Background Art

[0002] Pins are a type of standardized fasteners that can be used for static fixed connections or for relative movement with the connected parts. They are mainly used at the hinges of two parts to form hinged connections. Pins are usually locked with cotter pins, which are reliable and easy to disassemble. The function of pins is to locate and fasten parts. There are two types of pins: cylindrical and conical. The installation of pins is generally done by pressing in or knocking in with soft metal. Therefore, there is a special need for a quick-install anti-drop pin.

[0003] However, the existing quick-install anti-drop pins are generally installed by a press-in method, which may cause damage to the pins, or the pins are made of soft metal, which may cause the pins to rust after long-term use, thus causing the parts to be unable to be used for a long time. Utility Model Content

[0004] The purpose of the utility model is to provide a quick-install anti-dropout pin shaft to solve the problem that the existing quick-install anti-dropout pin shaft proposed in the above background technology is generally installed by a press-in method, which may cause the pin shaft to be damaged, or the pin shaft is made of soft metal, which causes the pin shaft to rust after long-term use, thus causing the parts to be unable to be used for a long time.

[0005] To achieve the above object, the utility model provides the following technical solutions: a quick-install anti-drop pin shaft, comprising a shaft body, the outer surface of the shaft body is snap-connected with a base, the outer surface of the shaft body is penetrated and connected with a bearing, the upper surface of the base is provided with a mounting mechanism, and the upper surface of the shaft body is provided with a lubrication mechanism;

[0006] The mounting mechanism includes a first through hole, a first limiting column, a first limiting hole, a spring, a second limiting column, a second limiting hole, a second through hole, and a third limiting column. The outer surface of the shaft body is provided with a first through hole, and the inner surface of the first through hole is snap-connected with the first limiting column. The upper surface of the base is provided with a first limiting hole, and the inner surface of the first limiting hole is fixedly connected with a spring, and the upper surface of the spring is fixedly connected with the second limiting column. The outer surface of the first limiting column is provided with a second limiting hole, and the outer surface of the shaft body is provided with a second through hole, and the inner surface of the second through hole is fixedly connected with the third limiting column.

[0007] Preferably, the inner wall size of the first through hole matches the outer wall size of the first limiting column, and the inner wall size of the second limiting hole matches the outer wall size of the second limiting column.

[0008] Preferably, the second limiting holes are symmetrically arranged with respect to the central axis of the base, and the second limiting holes and the second limiting columns form a snap-fit ​​structure.

[0009] Preferably, the second limiting column is symmetrically arranged with respect to the central axis of the base, and the inner wall size of the second through hole matches the outer wall size of the third limiting column.

[0010] Preferably, the lubrication mechanism includes an oil tank, a bushing, a third limiting hole, a cover, a connecting pipe, a drainage groove and a threaded groove. The upper surface of the shaft body is fixedly connected to the oil tank, the outer surface of the oil tank is fixedly connected to the bushing, the upper surface of the bushing is provided with a third limiting hole, the outer surface of the oil tank is threadedly connected to the cover, the lower surface of the oil tank is fixedly connected to the connecting pipe, the upper surface of the shaft body is provided with a drainage groove, and the outer surface of the shaft body is provided with a threaded groove.

[0011] Preferably, the outer wall size of the oil tank matches the inner wall size of the shaft sleeve, and the oil tank is threadedly connected to the cover.

[0012] Preferably, the outer wall size of the cover is larger than the outer wall size of the third limiting hole, and the oil tank and the shaft sleeve form a snap-fit ​​structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are: this kind of quick-install anti-drop pin shaft, through the arrangement of the first through hole, the first limiting column, the first limiting hole, the spring, the second limiting column, the second limiting hole and the second through hole, and the third limiting column, when the shaft body needs to be installed, first use the shaft body to connect the base and the bearing, then insert the first limiting column into the first through hole, then press the second limiting column to make the spring retract into the first limiting hole, push the first limiting column to align the second limiting hole with the second limiting hole, release the second limiting column to make the second limiting column engage in the second limiting hole, and then install the third limiting column in the second through hole to prevent the shaft body from shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the shaft body and the first limiting column cooperating with each other in the utility model;

[0016] Figure 3 This is a schematic diagram of the lubrication mechanism structure of the utility model;

[0017] Figure 4 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0018] In the figure: 1. shaft; 2. base; 3. bearing; 4. mounting mechanism; 401. first through hole; 402. first limiting column; 403. first limiting hole; 404. spring; 405. second limiting column; 406. second limiting hole; 407. second through hole; 408. third limiting column; 5. lubrication mechanism; 501. oil tank; 502. bushing; 503. third limiting hole; 504. cover; 505. connecting pipe; 506. drainage groove; 507. threaded groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides a technical solution: a quick-install anti-drop pin shaft, comprising a shaft body 1, a base 2 is snap-connected to the outer surface of the shaft body 1, a bearing 3 is penetrated and connected to the outer surface of the shaft body 1, a mounting mechanism 4 is arranged on the upper surface of the base 2, and a lubrication mechanism 5 is arranged on the upper surface of the shaft body 1;

[0021] The mounting mechanism 4 comprises a first through hole 401, a first limiting column 402, a first limiting hole 403, a spring 404, a second limiting column 405, a second limiting hole 406, a second through hole 407, and a third limiting column 408. The outer surface of the shaft body 1 is provided with a first through hole 401, the inner surface of the first through hole 401 is snap-connected with the first limiting column 402, the upper surface of the base 2 is provided with a first limiting hole 403, the inner surface of the first limiting hole 403 is fixedly connected with the spring 404, the upper surface of the spring 404 is fixedly connected with the second limiting column 405, the outer surface of the first limiting column 402 is provided with a second limiting hole 406, the outer surface of the shaft body 1 is provided with a second through hole 407, the inner surface of the second through hole 407 is fixedly connected with the third limiting column 408, through the arrangement of the first through hole 401, the first limiting column 402, the first limiting hole 403, the spring 404, the second limiting column 405, the second limiting hole 406 and the second through hole 407, and the third limiting column 408, when the shaft body 1 needs to be installed, first use the shaft body 1 to connect the base 2 and the bearing 3, then insert the first limiting column 402 into the first through hole 401, then press the second limiting column 405 to retract the spring 404 into the first limiting hole 402, push the first limiting column 402 to align the second limiting hole 406 with the second limiting hole 406, release the second limiting column 405, so that the second limiting column 405 is engaged in the second limiting hole 406, and then install the third limiting column 408 in the second through hole 407 to prevent the shaft body 1 from shaking.

[0022] Furthermore, the inner wall size of the first through hole 401 matches the outer wall size of the first limiting column 402, and the inner wall size of the second limiting hole 406 matches the outer wall size of the second limiting column 405. By setting the second limiting column 405, the position of the first limiting column 402 can be limited and the shaft body 1 can be quickly installed.

[0023] Furthermore, the second limiting hole 406 is symmetrically arranged with respect to the central axis of the base 2, and the second limiting hole 406 and the second limiting column 405 form a snap-fit ​​structure. By setting the second limiting hole 406, an installation position is provided for the second limiting column 405, which can be quickly installed.

[0024] Furthermore, the second limiting column 405 is symmetrically arranged with respect to the central axis of the base 2, and the inner wall size of the second through hole 407 matches the outer wall size of the third limiting column 408. By setting the second through hole 407, the position of the shaft body 1 can be limited to prevent the shaft body 1 from falling off during movement.

[0025] Furthermore, the lubrication mechanism 5 includes an oil tank 501, a shaft sleeve 502, a third limiting hole 503, a cover 504, a connecting pipe 505, a drainage groove 506 and a threaded groove 507. The upper surface of the shaft body 1 is fixedly connected with the oil tank 501, the outer surface of the oil tank 501 is fixedly connected with the shaft sleeve 502, the upper surface of the shaft sleeve 502 is provided with a third limiting hole 503, the outer surface of the oil tank 501 is threadedly connected with the cover 504, the lower surface of the oil tank 501 is fixedly connected with the connecting pipe 505, the upper surface of the shaft body 1 is provided with a drainage groove 506, and the outer surface of the shaft body 1 is provided with a threaded groove 507. The threaded groove 507 is arranged through the oil tank 501, the shaft sleeve 502, the third limiting hole 503, the cover 504, the connecting pipe 505, the drainage groove 506 and the threaded groove 507. When in use, the cover 504 is opened to pour the maintenance oil into the oil tank 501. The shaft sleeve 502 protects the oil tank 501 to prevent the oil tank 501 from being accidentally damaged and causing the maintenance oil to spill. The maintenance oil flows into the drainage groove 506 through the connecting pipe 505, and then flows along the drainage groove 506 to the threaded groove 507. In this way, the maintenance oil can protect the part of the shaft body 1 that is prone to rust.

[0026] Furthermore, the outer wall size of the oil tank 501 matches the inner wall size of the shaft sleeve 502, and the oil tank 501 is threadedly connected to the cover 504. The setting of the shaft sleeve 502 can protect the oil tank 501 and prevent the oil tank 501 from falling off the shaft body 1 during movement.

[0027] Furthermore, the outer wall size of the cover 504 is larger than the outer wall size of the third limiting hole 503, and the oil tank 501 and the sleeve 502 form a snap-fit ​​structure. Through the setting of the cover 504, maintenance oil can be injected into the oil tank 501 and the position of the sleeve 502 can be limited at the same time.

[0028] Working principle: First, when the machine starts running, when the shaft body 1 needs to be installed, first use the shaft body 1 to connect the base 2 and the bearing 3, then insert the first limiting column 402 into the first through hole 401, and then press the second limiting column 405 to retract the spring 404 into the first limiting hole 402, push the first limiting column 402, align the second limiting column 405 with the second limiting hole 406, loosen the second limiting column 405, and make the second limiting column 405 engage in the second limiting hole 406, and then The third limiting column 408 is installed in the second through hole 407 to prevent the shaft body 1 from shaking. When in use, the cover 504 is opened to pour the maintenance oil into the oil tank 501. The sleeve 502 protects the oil tank 501 to prevent the maintenance oil from spilling due to accidental damage of the oil tank 501. The maintenance oil flows into the drainage groove 506 through the connecting pipe 505, and then flows along the drainage groove 506 to the threaded groove 507. In this way, the maintenance oil can protect the part of the shaft body 1 that is prone to rust.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-install anti-drop pin shaft, comprising a shaft body (1), characterized in that: The outer surface of the shaft body (1) is snap-connected with a base (2), the outer surface of the shaft body (1) is penetrated by a bearing (3), the upper surface of the base (2) is provided with a mounting mechanism (4), and the upper surface of the shaft body (1) is provided with a lubrication mechanism (5); The mounting mechanism (4) comprises a first through hole (401), a first limiting column (402), a first limiting hole (403), a spring (404), a second limiting column (405), a second limiting hole (406), a second through hole (407), and a third limiting column (408); the first through hole (401) is provided on the outer surface of the shaft body (1); the first limiting column (402) is snap-connected to the inner surface of the first through hole (401); the first limiting hole (403) is provided on the upper surface of the base (2); the spring (404) is fixedly connected to the inner surface of the first limiting hole (403); the second limiting column (405) is fixedly connected to the upper surface of the spring (404); the second limiting hole (406) is provided on the outer surface of the first limiting column (402); the second through hole (407) is provided on the outer surface of the shaft body (1); and the third limiting column (408) is fixedly connected to the inner surface of the second through hole (407).

2. A quick-install anti-drop pin according to claim 1, characterized in that: The inner wall size of the first through hole (401) matches the outer wall size of the first limiting column (402), and the inner wall size of the second limiting hole (406) matches the outer wall size of the second limiting column (405).

3. The quick-install anti-drop pin according to claim 1, characterized in that: The second limiting holes (406) are symmetrically arranged with respect to the central axis of the base (2), and the second limiting holes (406) and the second limiting columns (405) form a snap-fit ​​structure.

4. The quick-install anti-drop pin according to claim 1, characterized in that: The second limiting column (405) is symmetrically arranged with respect to the central axis of the base (2), and the inner wall size of the second through hole (407) matches the outer wall size of the third limiting column (408).

5. The quick-install anti-drop pin according to claim 1, characterized in that: The lubricating mechanism (5) comprises an oil tank (501), a shaft sleeve (502), a third limiting hole (503), a cover (504), a connecting pipe (505), a drainage groove (506) and a threaded groove (507); the upper surface of the shaft body (1) is fixedly connected to the oil tank (501); the outer surface of the oil tank (501) is fixedly connected to the shaft sleeve (502); the upper surface of the shaft sleeve (502) is provided with a third limiting hole (503); the outer surface of the oil tank (501) is threadedly connected to the cover (504); the lower surface of the oil tank (501) is fixedly connected to the connecting pipe (505); the upper surface of the shaft body (1) is provided with a drainage groove (506); and the outer surface of the shaft body (1) is provided with a threaded groove (507).

6. A quick-install anti-drop pin according to claim 5, characterized in that: The outer wall size of the oil tank (501) matches the inner wall size of the shaft sleeve (502), and the oil tank (501) is threadedly connected to the cover (504).

7. The quick-install anti-drop pin according to claim 5, characterized in that: The outer wall size of the cover (504) is larger than the outer wall size of the third limiting hole (503), and the oil tank (501) and the shaft sleeve (502) form a snap-fit ​​structure.

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