Pin shaft convenient to disassemble and assemble and used for anti-falling pin

Abstract

The utility model relates to the technical field of pin shafts, in particular to an anti-falling pin shaft convenient to disassemble and assemble, which comprises a pin shaft and a cap body fixed on the surface of one end of the pin shaft, the outer side of the pin shaft is movably sleeved with an adjusting assembly, and the adjusting assembly comprises a rotating ring movably sleeved on the surface of the outer side of the cap body. A plurality of supporting strips are fixedly installed on the inner side surface of the rotating ring at equal angles, a plurality of lantern rings are slidably arranged on the outer side of the pin shaft in a sleeving mode, and a second gasket is movably arranged at the end, located on the lantern rings, of the outer side surface of the pin shaft in a sleeving mode. According to the utility model, the outer side of the pin shaft is sleeved with the lantern ring, so that the abrasion between the connecting piece and the pin shaft is reduced, the oxidation and corrosion between the connecting piece and the pin shaft are avoided, and the pin shaft is convenient to disassemble, and meanwhile, the gaskets are arranged at the two ends of the lantern ring, so that the gaskets abut against the cotter pin and the cap body of the pin shaft to fix the cotter pin; the cotter pin is prevented from being deformed and falling off due to the fact that the connecting piece collides with the cotter pin when moving or rotating, the firmness of the cotter pin is improved, and the cotter pin is convenient to disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of pin shafts, in particular to a pin shaft for preventing pin from falling off and being convenient for disassembly and assembly. Background Technique

[0002] A pin shaft is a type of standardized fastener, which can be used for static fixed connection or relative movement with the connected parts. It is mainly used at the hinge joint of two parts to form a hinge connection. The pin shaft is usually locked with a split pin.

[0003] Most of the existing pin shafts are directly inserted and fixed through split pins during use. There is usually a certain distance between the split pin and the connecting part. When the connecting part moves or rotates, it will hit the split pin, which easily causes the split pin to bend, deform and fall off. Moreover, the pin shaft is in direct contact with the connecting part, and the friction between the two will cause wear of the pin shaft and the connecting part, and it is easy to cause oxidation and rust between the two, resulting in inconvenience in disassembling the pin shaft. Content of the Utility Model

[0004] The purpose of the utility model is to provide a pin shaft for preventing pin from falling off and being convenient for disassembly and assembly, so as to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A pin shaft for preventing pin from falling off and being convenient for disassembly and assembly, including a pin shaft and a cap body fixed on the surface of one end of the pin shaft. An adjusting component is movably sleeved on the outer side of the pin shaft. The adjusting component includes a rotating ring movably sleeved on the outer surface of the cap body. A plurality of support bars are fixedly installed on the inner surface of the rotating ring at equal angles. A plurality of collar rings are slidably sleeved on the outer side of the pin shaft. A second gasket is movably sleeved on one end of the outer surface of the pin shaft where the plurality of collar rings are located. A connecting groove penetrating the pin shaft is opened on the upper end of the outer surface of the pin shaft. Split pins are symmetrically and movably arranged inside the connecting groove.

[0007] Furthermore: A plurality of abrasive protrusions are fixedly installed on the outer surface of the rotating ring at equal angles.

[0008] Furthermore: A first gasket is movably sleeved on the other end of the outer surface of the pin shaft where the plurality of collar rings are located. Second positioning grooves for slidably inserting the split pins are symmetrically opened on the upper surface of the second gasket.

[0009] Furthermore: The split pin is composed of a fixed semi-circular structure and an elastic bending card. Elastic metal sheets are symmetrically fixed on one side of the elastic bending card part of the split pin.

[0010] Furthermore: An oil injection hole penetrating the pin shaft is opened at the other end of the pin shaft. A plurality of oil grooves are equidistantly opened on the outer surface of the pin shaft. A plurality of oil distribution grooves for communicating the oil injection hole and the oil grooves are opened inside the pin shaft.

[0011] Furthermore, on one side surface of the cap body, a plurality of storage grooves are equiangularly formed, and on one side surface of the cap body, a plurality of first positioning grooves are equiangularly formed.

[0012] Preferably, at the connection between one side surface of the storage groove and the first positioning groove and one side surface of the cap body, a rounded corner structure is provided.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By rotating the rotating ring, under the action of the rounded corner structure, the support bar can be more easily removed from the storage groove. The support bar is screwed into the first positioning groove, the first gasket is fitted to the support bar, and the second gasket is pushed to fit against the split pin, fixing the split pin, avoiding the split pin from being deformed and falling off due to the impact of the connecting piece during movement or rotation, and improving the firmness of the split pin.

[0015] 2. Two split pins are symmetrically inserted into the connection groove. When the support bar pushes the first gasket upward, the second gasket abuts against the fixed semi-circular structure of the split pin, making this part located inside the second positioning groove. Thus, by sleeving a collar outside the pin shaft, the wear between the connecting piece and the pin shaft is reduced, avoiding oxidation and rust between the two, and making the pin shaft easy to disassemble.

[0016] 3. When disassembling the split pin, pull the split pin along the opening direction of the second positioning groove, causing the elastic bending card part of the split pin to deform and bend inward, and at the same time, the elastic metal sheet deforms and bends, so that the elastic bending card part of the split pin is received into the connection groove, quickly disassembling the split pin and making the split pin easy to disassemble and install.

[0017] 4. Lubricating oil is injected through the oil injection hole, and the lubricating oil enters the oil groove through the oil distribution groove. As the collar rotates, it gradually disperses between the collar and the pin shaft to reduce the friction between the two and reduce wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall structural schematic diagram of the present utility model;

[0019] Figure 2 is the overall disassembled structural schematic diagram of the present utility model;

[0020] Figure 3 is the vertical sectional structural schematic diagram of the connection between the pin shaft and the split pin in the present utility model;

[0021] Figure 4 is the vertical sectional structural schematic diagram of the connection between the pin shaft and the adjusting component in the present utility model;

[0022] Figure 5 is the horizontal sectional structural schematic diagram of the connection between the pin shaft and the adjusting component in the present utility model.

[0023] In the figure: 1. Pin; 101. Cap body; 102. Storage slot; 103. Positioning slot No. 1; 104. Connecting slot; 2. Adjustment assembly; 201. Rotating ring; 202. Frosted protrusion; 203. Support bar; 3. Split pin; 301. Elastic metal sheet; 302. Ring; 303. Gasket No. 1; 304. Gasket No. 2; 305. Positioning slot No. 2; 4. Oil filling hole; 401. Oil tank; 402. Oil distribution tank. Specific implementation method

[0024] The following will combine 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 them. Based on the embodiments of 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.

[0025] Please refer to Figures 1 to 5 , in the embodiment of the utility model, a pin shaft for anti-dropping pin that is easy to disassemble and assemble comprises a pin shaft 1 and a cap body 101 fixed to the surface of one end of the pin shaft 1, an adjustment assembly 2 is movably sleeved on the outer side of the pin shaft 1, the adjustment assembly 2 comprises a rotating ring 201 movably sleeved on the outer side surface of the cap body 101, a plurality of support bars 203 are fixedly installed at equal angles on the inner side surface of the rotating ring 201, a plurality of sleeves 302 are slidably sleeved on the outer side of the pin shaft 1, a second gasket 304 is movably sleeved on the outer side surface of the plurality of sleeves 302, a connecting groove 104 penetrating the pin shaft 1 is provided at the upper end of the outer side surface of the pin shaft 1, and a split pin 3 is symmetrically and movably provided inside the connecting groove 104.

[0026] Specifically, the multiple collars 302 can rotate independently to make them in direct contact with the connecting piece, thereby reducing the wear of the pin shaft 1 and increasing the service life of the pin shaft 1. Then, the second gasket 304 is used to press against the cotter pin 3, thereby increasing the stability of the cotter pin 3 and reducing the cotter pin 3 from falling off due to back and forth collisions.

[0027] Example 1

[0028] If Figure 2 and Figure 5 As shown, in this embodiment, a plurality of storage grooves 102 are provided at equal angles on one side of the cap body 101, and a plurality of number one positioning grooves 103 are provided at equal angles on one side of the cap body 101; the connection between the storage grooves 102 and the number one positioning grooves 103 and the side of the cap body 101 is provided with a rounded structure; and a plurality of frosted protrusions 202 are fixedly installed at equal angles on the outer surface of the rotating ring 201.

[0029] In this embodiment, after the pin shaft 1 and the collar 302 are installed, at this time, the support bar 203 is inside the storage groove 102. Rotate the rotating ring 201. Through the abrasive protrusions 202, the rotating ring 201 is more convenient to rotate. Under the action of the rounded corner structure, the support bar 203 is more convenient to move out of the storage groove 102. Screw the support bar 203 into the first positioning groove 103, make the first gasket 303 fit the support bar 203, and push the second gasket 304 to fit the split pin 3 to fix the split pin 3.

[0030] As Figures 2 - 5 shown, in this embodiment, a first gasket 303 is movably sleeved on the outer surface of the pin shaft 1 at the other ends of a plurality of collars 302. Second positioning grooves 305 for slidably inserting the split pin 3 are symmetrically opened on the upper surface of the second gasket 304; the split pin 3 is composed of a fixed semi-circular structure and an elastic bending card. Elastic metal sheets 301 are symmetrically fixed on one side of the elastic bending card part of the split pin 3.

[0031] During specific implementation, two split pins 3 are symmetrically inserted into the connection groove 104. When the support bar 203 pushes the first gasket 303 upward, the second gasket 304 abuts against the fixed semi-circular structure of the split pin 3, making this part inside the second positioning groove 305. Thus, by sleeving the collar 302 on the outer side of the pin shaft 1, the wear between the connecting piece and the pin shaft 1 is reduced, oxidation and rust between the two are avoided, and the pin shaft 1 is convenient to disassemble. At the same time, by arranging gaskets at both ends of the collar 302, the gaskets abut against the split pin 3 and the cap body 101 of the pin shaft 1 to fix the split pin 3, so as to prevent the connecting piece from hitting the split pin 3 during movement or rotation, causing the split pin 3 to deform and fall off, and improving the firmness of the split pin 3. When disassembling the split pin 3, pull the split pin 3 along the opening direction of the second positioning groove 305, so that the elastic bending card part of the split pin 3 deforms and bends inward, and at the same time the elastic metal sheet 301 deforms and bends, so that the elastic bending card part of the split pin 3 is received into the connection groove 104, quickly disassembling the split pin 3, making the split pin 3 convenient to disassemble and install.

[0032] Embodiment 2

[0033] On the basis of Embodiment 1, to solve the problem that the pin shaft 1 and the collar 302 are prone to wear and rust in Embodiment 1.

[0034] As Figure 3 shown, in this embodiment, an oil injection hole 4 penetrating the pin shaft 1 is opened at the other end of the pin shaft 1. A plurality of oil grooves 401 are equidistantly opened on the outer surface of the pin shaft 1. A plurality of oil distribution grooves 402 for communicating the oil injection hole 4 and the oil grooves 401 are opened inside the pin shaft 1.

[0035] In specific implementation, lubricating oil is injected through the oil injection hole 4, so that the lubricating oil enters the interior of the oil tank 401 through the oil distribution groove 402. As the collar 302 rotates, it is gradually dispersed between the collar 302 and the pin shaft 1 to reduce the friction between the two and reduce wear.

[0036] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0037] In addition, it should be understood that although this specification is described in accordance with the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pin shaft for preventing a pin from falling out that is easy to disassemble and assemble, comprising a pin shaft (1) and a cap body (101) fixed to one end surface of the pin shaft (1), characterized in that: The outer side of the pin shaft (1) is movably sleeved with an adjustment component (2), and the adjustment component (2) comprises a rotating ring (201) movably sleeved on the outer side surface of the cap body (101), and a plurality of support bars (203) are fixedly installed at equal angles on the inner side surface of the rotating ring (201), and a plurality of sleeves (302) are slidably sleeved on the outer side of the pin shaft (1), and a No. 2 gasket (304) is movably sleeved on one end of the plurality of sleeves (302) on the outer side surface of the pin shaft (1), and a connecting groove (104) penetrating the pin shaft (1) is provided at the upper end of the outer side surface of the pin shaft (1), and a split pin (3) is symmetrically and movably provided inside the connecting groove (104).

2. The anti-drop pin shaft that is easy to disassemble and assemble according to claim 1, characterized in that: A plurality of frosted protrusions (202) are fixedly mounted at equal angles on the outer surface of the rotating ring (201).

3. The pin shaft for preventing the pin from falling off that is easy to disassemble and assemble according to claim 1 is characterized in that: The outer surface of the pin shaft (1) is movably sleeved with a No. 1 gasket (303) at the other end of the plurality of collars (302), and the upper surface of the No. 2 gasket (304) is symmetrically provided with a No. 2 positioning groove (305) for slidingly plugging with the cotter pin (3).

4. The pin shaft for preventing the pin from falling off that is easy to disassemble and assemble according to claim 1 is characterized in that: The cotter pin (3) is composed of a fixed semicircular structure and an elastic curved card, and an elastic metal sheet (301) is symmetrically fixedly arranged on one side of the elastic curved card portion of the cotter pin (3).

5. The pin shaft for preventing pins from falling off and being easy to disassemble and assemble according to claim 1, characterized in that: The other end of the pin shaft (1) is provided with an oil injection hole (4) penetrating the pin shaft (1), the outer surface of the pin shaft (1) is provided with a plurality of oil grooves (401) at equal intervals, and the interior of the pin shaft (1) is provided with a plurality of oil distribution grooves (402) for connecting the oil injection hole (4) and the oil grooves (401).

6. The pin shaft for preventing the pin from falling off that is easy to disassemble and assemble according to claim 1, characterized in that: A plurality of storage grooves (102) are formed at equal angles on one side surface of the cap body (101), and a plurality of number one positioning grooves (103) are formed at equal angles on one side surface of the cap body (101).

7. The pin shaft for preventing the pin from falling off that is easy to disassemble and assemble according to claim 6, characterized in that: The connection points between the storage groove (102) and one side of the No. 1 positioning groove (103) and one side of the cap body (101) are all provided with rounded corner structures.

Images