CN220015747U

CN220015747U - Quick assembly disassembly round pin axle

Info

Publication number: CN220015747U
Application number: CN202321477801.8U
Authority: CN
Inventors: 田洪波
Original assignee: Shandong Zhanhua Changsheng Machinery Co ltd
Current assignee: Shandong Zhanhua Changsheng Machinery Co ltd
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2023-11-14
Anticipated expiration: 2033-06-12

Abstract

The utility model discloses a quick dismounting pin shaft which comprises a shaft body, wherein the rear end of the shaft body is fixedly connected with a mounting head, a plurality of guide blocks are fixedly arranged on the outer side face of the mounting head, a lug is slidably connected to the front end position of a top piece on the outer side of the mounting head, one end of the shaft body is provided with an end cover, the top of the outer side of the end cover is fixedly connected with a guide rail, the lower end of the guide rail is provided with a sliding groove, a fixing piece is slidably connected in the sliding groove, the rear end of the fixing piece is fixedly connected with a sliding block and is slidably connected with the guide rail, a button is arranged in the middle of the sliding block, and a push rod penetrates through a second spring and corresponds to the fixing piece and a through hole. According to the utility model, the mounting head guide block is in transmission connection with the end cover guide groove, the fixing piece is in sliding connection with the clamping groove, and the convex block is in sliding connection with the through hole, so that the pin shaft can be quickly dismounted and prevented from falling off, the structure is simple, the operation is convenient and labor-saving, and the quick dismounting and mounting can be completed without using any tool in the whole dismounting process.

Description

Quick assembly disassembly round pin axle

Technical Field

The utility model relates to the field of pin shafts, in particular to a pin shaft capable of being quickly assembled and disassembled.

Background

The pin shaft is a standardized fastener, can be statically and fixedly connected, can also relatively move with a connected piece, is mainly used for hinging two parts to form hinge connection, is widely used in engineering machinery at present, and is mainly used for realizing positioning and limiting connection among all parts in a manner of sinking and embedding a shaft pin, a cylindrical pin, a taper pin and the like in the assembly of machine parts.

At present, in engineering application, more methods are used for preventing pins from falling off, such as a method for connecting pin shafts by interference; the pin shaft structure is changed to increase the brake pad; the pin shaft is grooved and positioning bolts are added; a cotter pin is used for punching the pin shaft from the radial direction; the pin shaft is grooved along the circumference of the pin cylinder by using a plurality of methods such as a clamp spring and the like, and the methods can solve the problem of preventing the pin shaft from falling off to a certain extent, but the methods all need to be installed and disassembled under the condition of using a tool, can not realize quick installation and disassembly, and meanwhile, the metal strip needs to be replaced after being bent for many times, so that the practicability is poor.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a pin shaft capable of being quickly assembled and disassembled.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a quick assembly disassembly round pin axle, includes the axis body, axis body rear end fixedly connected with installation head, fixedly set up a plurality of guide blocks on the installation head lateral surface, be provided with the appearance chamber in the installation head, installation head outside top piece front end position sliding connection has the lug, the lug runs through installation head to holding intracavity, lug lower extreme fixedly connected with spring one, spring lower extreme fixedly connected with holds the chamber bottom, fixedly on the installation head rear end top axis body be equipped with the draw-in groove, axis body front end top central point puts fixedly connected with hand pull rod, hand pull rod right side position is equipped with Huang Youkong, axis body one end is equipped with the end cover, the end cover inner wall is provided with a plurality of guide grooves and matches with the guide block, end cover outside top partial tail portion sets up through-hole and through-hole end cover, end cover outside top fixedly connected with guide rail, the guide rail lower extreme is equipped with the spout, sliding connection has the stationary blade in the spout, stationary blade rear end fixedly connected with slider and with guide rail sliding connection, the button intermediate push button fixedly connected with push button, two fixed connection have two fixed connection spring lower extreme fixed connection at two push rod lower surface pairs.

As a further description of the above technical solution:

the guide block and the guide groove are spiral.

As a further description of the above technical solution:

and the front end of the end cover is fixedly connected with a gasket.

As a further description of the above technical solution:

and the butter hole penetrates through the shaft body and is in butt joint with the oil outlet.

As a further description of the above technical solution:

the lug is in sliding connection with the through hole, and the lug and the through hole are positioned on the same horizontal plane.

As a further description of the above technical solution:

the inner diameter of the lower end of the spring II is larger than the outer diameter of the fixing piece.

As a further description of the above technical solution:

the bottom is positioned on the top surface of the fixing piece and is flush with the surface of the fixing piece when the ejector rod is retracted.

As a further description of the above technical solution:

the outer side of the shaft body is provided with a plurality of oil outlets.

The utility model has the following beneficial effects:

1. according to the utility model, the mounting head guide block and the end cover guide groove rotate for one circle, the sliding block on the end cover guide rail slides and the fixing piece penetrates through the clamping groove on the shaft body, the spring pushes the protruding block to enter the through hole under the action of pressure, and the button ejector rod pushes the protruding block to retract, so that the pin shaft can be quickly disassembled and assembled without using tools.

2. In the utility model, the guide block is connected with the guide groove in a transmission way, the bump is sprung into the through hole under the pressure of the spring, and the slide block pushes the fixing piece to be connected with the clamping groove in a sliding way, so that the pin shaft can be prevented from falling off.

Drawings

FIG. 1 is an exploded view of a quick release pin according to the present utility model;

FIG. 2 is a side view of a quick release pin according to the present utility model;

FIG. 3 is a diagram showing the internal structure of a mounting head for quickly assembling and disassembling a pin shaft according to the present utility model;

fig. 4 is a button structure diagram of a quick assembly disassembly pin provided by the utility model;

FIG. 5 is a diagram showing the construction of the inside of an end cap of a quick-release pin according to the present utility model;

fig. 6 is a front view of a quick assembly disassembly pin according to the present utility model.

Legend description:

1. a shaft body; 2. a guide block; 3. a bump; 4. a guide groove; 5. a gasket; 6. an end cap; 7. a hand pull rod; 8. huang Youkong; 9. a clamping groove; 10. a chute; 11. a first spring; 12. a cavity; 13. a button; 14. a second spring; 15. a push rod; 16. a fixing piece; 17. a through hole; 18. a guide rail; 19. a slide block; 20. and (5) installing a head.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-6, one embodiment provided by the present utility model is: the quick dismounting pin comprises a shaft body 1, wherein the rear end of the shaft body 1 is fixedly connected with a mounting head 20, the outer side surface of the mounting head 20 is fixedly provided with a plurality of guide blocks 2, a containing cavity 12 is arranged in the mounting head 20, the front end position of a top piece at the outer side of the mounting head 20 is slidably connected with a convex block 3, the mounting head 20 at the position of the convex block 3 is an inclined plane, the head of the convex block 3 is circular, the front end of one guide groove 4 of the end cover 6 is provided with a groove, when the end cover 6 is conveniently connected with the mounting head in a rotating way, the convex block 3 is positioned to shrink when entering the interior of the end cover 6, the convex block 3 penetrates through the mounting head 20 into the containing cavity 12, the lower end of the convex block 3 is fixedly connected with a first spring 11, the lower end of the first spring 11 is fixedly connected with the bottom of the containing cavity 12, a clamping groove 9 is fixedly arranged on the top shaft body at the top of the rear end of the mounting head 20, the center position of the top of the front end of the shaft body 1 is fixedly connected with a hand pull rod 7, the middle position of the hand pull rod 7 is provided with a plane, when the shaft body 1 is difficult to be embedded into a workpiece, huang Youkong 8 is arranged at the right side of the hand pull rod 7 by means of a beating surface of a tool, an end cover 6 is arranged at one end of the shaft body 1, a plurality of guide grooves 4 are formed in the inner wall of the end cover 6 and matched with the guide blocks 2, through holes 17 are formed in the tail part of the top of the outer side of the end cover 6 and penetrate through the end cover 6, a guide rail 18 is fixedly connected to the top of the outer side of the end cover 6, the rear end of the guide rail 18 is close to the guide rail 18 at the tail part of the end cover 6, the front end of the guide rail 18 is fixedly connected with a gasket 5, a slide groove 10 is arranged at the lower end of the guide rail 18, a fixing piece 16 is connected in a sliding manner in the slide groove 10, a slide 19 is fixedly connected with the rear end of the fixing piece 16 and is in sliding connection with the guide rail 18, a button 15 is arranged in the middle of the slide piece 19, a second spring 14 is fixedly connected to the lower end of the button 15, the lower end of the second spring 14 is fixedly connected to the surface of the fixing piece 16, and the center of the lower end of the button 13 is fixedly connected with a push rod 15, the ejector rod 15 penetrates through the second spring 14 and corresponds to the fixing piece 16 and the through hole 17.

The guide block 2 is spiral with the guide way 4, end cover 6 front end fixedly connected with gasket 5, gasket 5 is equipped with the through-hole and corresponds with stationary blade 16, stationary blade sliding connection installation head 20 draw-in groove 9 runs through gasket 5, the yellow oilhole 8 runs through shaft body 1 and dock with the oil-out, lug 3 and through-hole 17 sliding connection, lug 3 and through-hole 17 are located same horizontal plane, spring two 14 lower extreme internal diameter is greater than stationary blade 16 external diameter, the bottom is located stationary blade 16 top surface and flushes with stationary blade 16 surface when ejector pin 15 is retracted, the shaft body 1 outside is equipped with a plurality of oil-outs.

Working principle: firstly, a pin shaft is arranged, a mounting head 20 of a shaft body 1 penetrates through a space between two workpieces, a guide groove 4 of an end cover 6 is used, a guide block 2 of the mounting head 20 is correspondingly arranged, the guide block 2 rotates for one circle along the guide groove 4, at the moment, a convex block 3 enters a through hole 17 through the pressure of a first spring 11, at the moment, a sliding block 19 is pushed to drive a fixing piece 16, the fixing piece enters a clamping groove 9 to finish mounting, and the pin shaft can be lubricated through a yellow oil hole 8 after long-time use. The pin shaft is disassembled and assembled, the sliding slide block 19 retreats to enable the fixing piece 16 to be separated from the shaft body clamping groove 9, when the slide block 19 retreats to the bottom of the guide rail 18, the push button 13 is pressed to enable the ejector rod 15 to pass through the fixing piece 16 and the through hole 17, the push lug 3 is pressed to enable the lug 3 to be separated from the through hole 17, the end cover 6 is rotated anticlockwise to enable the guide groove 4 in the end cover 6 to be separated along the guide block 2 of the mounting head 20, the front end hand pull rod 7 of the shaft body 1 is held by hands, and the shaft body is pulled out to be disassembled.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a quick assembly disassembly round pin axle, includes axis body (1), its characterized in that: the utility model discloses a sliding guide device for a car, which comprises a shaft body (1), wherein a mounting head (20) is fixedly connected with the rear end of the shaft body (1), a plurality of guide blocks (2) are fixedly arranged on the outer side surface of the mounting head (20), a containing cavity (12) is arranged in the mounting head (20), a lug (3) is slidably connected with the front end position of an upper top piece at the outer side of the mounting head (20), the lug (3) penetrates through the mounting head (20) to the containing cavity (12), a first spring (11) is fixedly connected with the lower end of the lug (3), the lower end of the first spring (11) is fixedly connected with the bottom of the containing cavity (12), a clamping groove (9) is fixedly arranged on the top shaft body at the rear end of the mounting head (20), a hand pull rod (7) is fixedly connected with the center position of the front end of the shaft body (1), huang Youkong (8) is arranged at the right side of the hand pull rod (7), an end cover (6) is arranged at one end of the shaft body (1), a plurality of guide grooves (4) are formed in the inner wall of the end cover (6) and are matched with the guide blocks (2), a first spring (11) is fixedly connected with the lower end cover (6), a second slide groove (17) is fixedly connected with the bottom the containing cavity (12), a guide rail (18), a lower end cover (18) is fixedly connected with the slide groove (18) and the inner side of the slide groove (18), the utility model discloses a fixing piece, including stationary blade (16) and fixed plate, stationary blade (16) rear end fixedly connected with slider (19) and with guide rail (18) sliding connection, be equipped with button (13) in the middle of slider (19), button (13) lower extreme fixedly connected with spring two (14), spring two (14) lower extreme fixed connection is on stationary blade (16) surface, button (13) lower extreme central point puts fixedly connected with ejector pin (15), ejector pin (15) run through spring two (14) and stationary blade (16) and through-hole (17) correspond.

2. The quick assembly disassembly pin of claim 1, wherein: the guide block (2) and the guide groove (4) are spiral.

3. The quick assembly disassembly pin of claim 1, wherein: the front end of the end cover (6) is fixedly connected with a gasket (5).

4. The quick assembly disassembly pin of claim 1, wherein: the butter hole (8) penetrates through the shaft body (1) and is in butt joint with the oil outlet.

5. The quick assembly disassembly pin of claim 1, wherein: the lug (3) is in sliding connection with the through hole (17), and the lug (3) and the through hole (17) are positioned on the same horizontal plane.

6. The quick assembly disassembly pin of claim 1, wherein: the inner diameter of the lower end of the second spring (14) is larger than the outer diameter of the fixing piece (16).

7. The quick assembly disassembly pin of claim 1, wherein: the bottom of the ejector rod (15) is positioned on the top surface of the fixing piece (16) and is flush with the surface of the fixing piece (16) when the ejector rod is retracted.

8. The quick assembly disassembly pin of claim 1, wherein: a plurality of oil outlets are arranged on the outer side of the shaft body (1).