CN216278862U

CN216278862U - Pin shaft convenient to disassemble

Info

Publication number: CN216278862U
Application number: CN202122887911.9U
Authority: CN
Inventors: 周旸
Original assignee: Changzhou Ziguang Needle Roller Bearing Co ltd
Current assignee: Changzhou Ziguang Needle Roller Bearing Co ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-04-12
Anticipated expiration: 2031-11-23

Abstract

The utility model belongs to the field of pin shafts, and particularly relates to a conveniently-disassembled pin shaft which comprises a pin shaft body and a limiting block fixed at the upper end of the pin shaft body, wherein a fixing ring is installed at the lower end of the pin shaft body, a fixing groove is formed in the inner wall of the fixing ring, a fixing pipe is fixed inside the fixing groove, a fixing column is arranged inside the fixing pipe, an adjusting column is fixed on the outer surface of the fixing column, a fixing spring is sleeved on the outer surface of the adjusting column, a lifting block is fixed at the end part of the adjusting column, the fixing spring is fixedly connected with the fixing pipe and the fixing column, and a clamping groove is formed in the inner wall of the fixing ring; thereby draw the inside that draws the piece to make the fixed pipe of adjusting the post retraction through dragging solid fixed ring tip hard to the extrusion fixed spring makes fixed column and round pin axle body looks separation, then will gu fixed ring take off can, accomplish the dismantlement of round pin axle, avoid traditional bolt fastening, need not dismantle with the help of other instruments, dismantle efficiency is higher.

Description

Pin shaft convenient to disassemble

Technical Field

The utility model relates to the field of pin shafts, in particular to a pin shaft convenient to disassemble.

Background

The pin shaft is a standard fastener, can be statically and fixedly connected, can also move relative to a connected piece, and is mainly used at the hinged position of two parts to form a hinged connection.

After the existing pin shaft is connected with a part, a bolt penetrates through a through hole at the end part of the pin shaft and is matched with a nut for fixing, other tools are needed, the operation is complicated, and when the pin shaft needs to be disassembled, other tools are needed, so that the pin shaft is not convenient and fast; therefore, a pin shaft convenient to disassemble is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects of the prior art and solve the problem that when the pin shaft is disassembled, other tools are needed for disassembling, and the pin shaft is not convenient enough, the utility model provides the pin shaft convenient to disassemble.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model relates to a conveniently-disassembled pin shaft which comprises a pin shaft body and a limiting block fixed at the upper end of the pin shaft body, wherein a fixing ring is installed at the lower end of the pin shaft body, a fixing groove is formed in the inner wall of the fixing ring, a fixing pipe is fixed inside the fixing groove, a fixing column is arranged inside the fixing pipe, an adjusting column is fixed on the outer surface of the fixing column, a fixing spring is sleeved on the outer surface of the adjusting column, a lifting block is fixed at the end part of the adjusting column, the fixing spring is fixedly connected with the fixing pipe and the fixing column, a clamping groove is formed in the inner wall of the fixing ring, and the fixing column is matched with the clamping groove; avoid traditional bolt fastening, need not dismantle with the help of other instruments, dismantle efficiency is higher, improves the convenience.

Preferably, an anti-skid layer is embedded in the surface of the lifting block, the anti-skid layer is a rubber strip, and the lifting block is fixedly connected with the anti-skid layer; thereby avoiding the lifting block from falling off from the hand due to the slightly higher degree of the fixed spring.

Preferably, a limiting ring is fixed at the upper end of the fixing ring, a buffer clamping sleeve is sleeved on the surface of the limiting ring, a buffer spring is arranged between the limiting ring and the buffer clamping sleeve, and the buffer spring, the buffer clamping sleeve and the fixing ring are fixedly connected; can cushion rocking, avoid the part to rock the fastness that influences the round pin axle.

Preferably, buffer spring is located the inside of spacing ring and is the annular array and arranges, and the multiunit buffer spring that the symmetry was arranged can make solid fixed ring pressure that arrives more even, and then can improve buffering effect.

Preferably, the outer surface of the buffer clamping sleeve is provided with a protection bump, the protection bump is fixedly connected with the buffer clamping sleeve, the protection bump is a flexible rubber bump, and the protection bumps are uniformly distributed on the surface of the buffer clamping sleeve; the protection lug on buffering cutting ferrule surface contacts with the part surface, can further cushion rocking.

Preferably, a protective layer is arranged on the outer surface of the limiting block, the protective layer is a flexible rubber plate, and the protective layer is fixedly connected with the limiting block; the limiting block made of metal materials can be prevented from directly contacting with the surface of the part, and long-time contact with the part is avoided, so that abrasion to the surface of the part is avoided.

The utility model has the advantages that:

1. according to the utility model, the lifting block at the end part of the fixing ring is pulled forcibly, so that the adjusting column is retracted into the fixing tube, the fixing spring is extruded, the fixing column is separated from the pin shaft body, then the fixing ring is taken down, the pin shaft is disassembled, the traditional bolt fixing is avoided, the disassembling is not required by other tools, the disassembling efficiency is higher, and the convenience is improved;

2. according to the utility model, the buffer clamping sleeve is pressed downwards, so that the buffer spring is extruded, the protection lug on the surface of the buffer spring is matched to buffer shaking, the part shaking is prevented from influencing the firmness of the pin shaft, the fixing effect of the pin shaft is further improved, and the using effect of the pin shaft is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a perspective view of a pin body in the first embodiment;

fig. 2 is a cross-sectional view of the pin body and the fixing ring in the first embodiment;

FIG. 3 is an enlarged view of a portion A of FIG. 1;

FIG. 4 is an enlarged view of a portion B of FIG. 2;

fig. 5 is a schematic view of a limiting block and a limiting groove in the second embodiment.

In the figure: 1. a pin shaft body; 2. a limiting block; 3. a fixing ring; 4. fixing grooves; 5. a fixed tube; 6. fixing a column; 7. an adjustment column; 8. fixing the spring; 9. lifting the block; 10. a card slot; 11. an anti-slip layer; 12. a limiting ring; 13. a buffer card sleeve; 14. a buffer spring; 15. a protection bump; 16. a protective layer; 17. a limiting groove; 18. and (5) a limiting strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-4, a conveniently detachable pin shaft comprises a pin shaft body 1 and a limiting block 2 fixed at the upper end of the pin shaft body 1, wherein a fixing ring 3 is installed at the lower end of the pin shaft body 1, a fixing groove 4 is formed in the inner wall of the fixing ring 3, a fixing tube 5 is fixed inside the fixing groove 4, a fixing column 6 is arranged inside the fixing tube 5, an adjusting column 7 is fixed on the outer surface of the fixing column 6, a fixing spring 8 is sleeved on the outer surface of the adjusting column 7, a lifting block 9 is fixed at the end of the adjusting column 7, the fixing spring 8 is fixedly connected with the fixing tube 5 and the fixing column 6, a clamping groove 10 is formed in the inner wall of the fixing ring 3, and the fixing column 6 is matched with the clamping groove 10; when the pin shaft is used for connecting parts, the end part of the pin shaft body 1 penetrates through a connecting piece, then the lifting block 9 at the end part of the fixing ring 3 is pulled by force so that the adjusting column 7 is retracted into the fixing tube 5, the fixing spring 8 is extruded to provide a space for the installation of the pin shaft body 1, then the fixing ring 3 is connected with the pin shaft body 1, the through hole on the surface of the pin shaft body 1 corresponds to the fixing groove 4 on the inner wall of the fixing ring 3, then the lifting block 9 is loosened, the fixing column 6 penetrates out of the fixing tube 5 by utilizing the characteristic of the fixing spring 8 and is connected with the clamping groove 10 on the inner wall of the fixing ring 3 after penetrating through the through hole on the surface of the pin shaft body 1, the pin shaft body 1 is fixed, when the pin shaft needs to be disassembled, a user pulls the lifting block 9 again by force so that the fixing column 6 is separated from the pin shaft body 1, and then the fixing ring 3 is taken down, the dismantlement of round pin axle is accomplished, avoids traditional bolt fastening, need not dismantle with the help of other instruments, and it is higher to dismantle efficiency, improves the convenience.

An anti-skid layer 11 is embedded on the surface of the lifting block 9, the anti-skid layer 11 is a rubber strip, and the lifting block 9 is fixedly connected with the anti-skid layer 11; when adjusting fixed column 6 through carrying and drawing piece 9, user's finger can contact with inoxidizing coating 16, can effectively avoid appearing the smooth phenomenon of hand, thereby avoid because of fixed spring 8 slightly higher lead to the fact carry and draw piece 9 to drop in the hand, and the rubber strip can improve and draw the comfort level when carrying and drawing piece 9.

A limiting ring 12 is fixed at the upper end of the fixing ring 3, a buffer clamping sleeve 13 is sleeved on the surface of the limiting ring 12, a buffer spring 14 is arranged between the limiting ring 12 and the buffer clamping sleeve 13, and the buffer spring 14 is fixedly connected with the buffer clamping sleeve 13 and the fixing ring 3; after utilizing round pin axle to fix the part, the in-process that the part used can take place to rock to extrusion buffering cutting ferrule 13, buffering cutting ferrule 13 pushes down, thereby extrudees buffer spring 14, can cushion rocking, avoids the part to rock the fastness that influences the round pin axle, and then improves the fixed effect of round pin axle, further improves the result of use of round pin axle.

The buffer springs 14 are arranged in the limiting ring 12 in an annular array; the multiple groups of buffer springs 14 which are symmetrically arranged can enable the pressure of the fixing ring 3 to be more uniform, and further the buffering effect can be improved.

The outer surface of the buffer clamping sleeve 13 is provided with a protection lug 15, the protection lug 15 is fixedly connected with the buffer clamping sleeve 13, the protection lug 15 is a flexible rubber lug, and the protection lugs 15 are uniformly distributed on the surface of the buffer clamping sleeve 13; after utilizing round pin axle to fix the part, the protection lug 15 on buffering cutting ferrule 13 surface contacts with the part surface, can further cushion rocking, improves buffering effect, and the protection lug 15 that the multiunit was evenly arranged can make the buffering more even, and can avoid long-time contact to cause the part surface phenomenon of wearing and tearing to appear.

A protective layer 16 is arranged on the outer surface of the limiting block 2, the protective layer 16 is a flexible rubber plate, and the protective layer 16 is fixedly connected with the limiting block 2; after utilizing round pin axle to fix the part, the inoxidizing coating 16 on stopper 2 surface can contact with the part, can avoid metal material's stopper 2 and part surface direct contact, avoids contacting with the part for a long time, causes wearing and tearing to the part surface, prevents to influence the use of part.

Example two:

referring to fig. 5, as another embodiment of the present invention, in a first comparative example, a limiting groove 17 is formed in an inner wall of a fixing ring 3, limiting strips 18 are disposed on an outer surface of a pin shaft body 1, the limiting strips 18 are symmetrically arranged on the surface of the pin shaft body 1, the limiting strips 18 are fixedly connected to the pin shaft body 1, and the limiting strips 18 are adapted to the limiting groove 17; when being connected round pin axle body 1 with solid fixed ring 3, with round pin axle body 1 surperficial spacing 18 corresponding with spacing groove 17, connect again, make spacing 18 be located inside spacing groove 17, can realize accurate location, make the through-hole on round pin axle body 1 surface corresponding with the spread groove of solid fixed ring 3 inner wall, more be favorable to the fixed of round pin axle, and then improve the result of use of round pin axle.

According to the working principle, when parts are connected by using a pin shaft, the end part of a pin shaft body 1 penetrates through a connecting piece, then a lifting block 9 at the end part of a fixing ring 3 is pulled forcibly so as to enable an adjusting column 7 to be retracted into the fixing tube 5, so that a fixing spring 8 is extruded, then the fixing ring 3 is connected with the pin shaft body 1, a through hole in the surface of the pin shaft body 1 corresponds to a fixing groove 4 in the inner wall of the fixing ring 3, then the lifting block 9 is loosened, a fixing column 6 penetrates out of the fixing tube 5 by utilizing the characteristic of the fixing spring 8 and is connected with a clamping groove 10 in the inner wall of the fixing ring 3 after penetrating through the through hole in the surface of the pin shaft body 1, so that the pin shaft body 1 is fixed, when the pin shaft needs to be disassembled, a user pulls the lifting block 9 forcefully again so that the fixing column 6 is separated from the pin shaft body 1, the disassembly of the pin shaft is completed, and the disassembly process is simpler; after utilizing the round pin axle to fix the part, the in-process that the part used can take place to rock to extrusion buffering cutting ferrule 13, buffering cutting ferrule 13 pushes down, thereby extrudees buffer spring 14, can cushion rocking, avoids the part to rock the fixed effect that influences the round pin axle.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims

1. The utility model provides a convenient round pin axle of dismantling which characterized in that: including round pin axle body (1) and fix stopper (2) in round pin axle body (1) upper end, solid fixed ring (3) are installed to the lower extreme of round pin axle body (1), fixed slot (4) have been seted up to the inner wall of solid fixed ring (3), the inside of fixed slot (4) is fixed with fixed pipe (5), the inside setting of fixed pipe (5) is by fixed column (6), the external fixed surface of fixed column (6) has regulation post (7), the external surface cover of adjusting post (7) is equipped with fixed spring (8), the end fixing of adjusting post (7) has to carry and draws piece (9), be fixed connection between fixed spring (8) and fixed pipe (5), fixed column (6), be fixed connection, draw-in groove (10) have been seted up to the inner wall of solid fixed ring (3), fixed column (6) and draw-in groove (10) looks adaptation.

2. The conveniently disassembled pin shaft of claim 1, wherein: the anti-skid layer (11) is embedded on the surface of the lifting block (9), the anti-skid layer (11) is a rubber strip, and the lifting block (9) is fixedly connected with the anti-skid layer (11).

3. The conveniently disassembled pin shaft of claim 1, wherein: the upper end of solid fixed ring (3) is fixed with spacing ring (12), the surface cover of spacing ring (12) is equipped with buffering cutting ferrule (13), be provided with buffer spring (14) between spacing ring (12) and buffering cutting ferrule (13), be fixed connection between buffer spring (14) and buffering cutting ferrule (13), solid fixed ring (3).

4. The conveniently disassembled pin shaft of claim 3, wherein: the buffer springs (14) are arranged in the limiting ring (12) in an annular array.

5. The conveniently disassembled pin shaft of claim 3, wherein: the surface of buffering cutting ferrule (13) is provided with protection lug (15), be fixed connection between protection lug (15) and buffering cutting ferrule (13), protection lug (15) are flexible rubber lug, protection lug (15) are located the even arrangement in surface of buffering cutting ferrule (13).

6. The conveniently disassembled pin shaft of claim 1, wherein: the outer surface of the limiting block (2) is provided with a protective layer (16), the protective layer (16) is a flexible rubber plate, and the protective layer (16) is fixedly connected with the limiting block (2).