CN212928451U

CN212928451U - Composite pin shaft

Info

Publication number: CN212928451U
Application number: CN202021704080.6U
Authority: CN
Inventors: 任亚辉
Original assignee: Ningbo Zhende Construction Machinery Co ltd
Current assignee: Ningbo Zhende Construction Machinery Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-04-09
Anticipated expiration: 2030-08-14

Abstract

The utility model relates to a round pin axle technical field just discloses a compound round pin axle, including the bolt body, the installation cavity has been seted up to the inside of bolt body, five solid fixed rings of surface fixed connection of bolt body, five gu fixed ring's external diameter top-down crescent, fixedly connected with rubber seal ring on solid fixed ring's the surface, the top threaded connection of bolt body has control screw, control screw's top fixedly connected with control knob, the bottom of control screw runs through the bolt body and extends to the installation cavity inside. The utility model discloses a control knob plays the effect that the control extrusion dish goes up and down, plays the effect of effective control atress hemisphere and anchor strut extrusion rubber seal ring through the lift of extrusion dish, and then makes anchor strut extrusion rubber seal ring reach the effect that promotes the use steadiness behind the bolt patchhole again to reach the effect that promotes bolt service quality.

Description

Composite pin shaft

Technical Field

The utility model relates to a round pin axle technical field especially relates to a compound round pin axle.

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. The pin shaft is usually locked by a cotter pin, and has reliable work and convenient disassembly.

Along with the rapid development of the pin shaft, the requirement on the pin shaft is improved, but the existing pin shaft cannot be fastened with the inner surface of the hole after being inserted into the fixing hole, so that the stability is low, and the normal use quality is greatly influenced.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is to solve the shortcoming that exists among the prior art, if: the existing pin shaft cannot improve the tightness with the inner surface of the hole after being inserted into the fixing hole, so that the stability is low, the normal use quality is greatly influenced, and the composite pin shaft is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a composite pin shaft comprises a pin body, wherein an installation cavity is formed in the pin body, five fixing rings are fixedly connected to the outer surface of the pin body, the outer diameters of the five fixing rings are gradually increased from top to bottom, rubber sealing rings are fixedly connected to the outer surfaces of the fixing rings, a control screw is in threaded connection with the top of the pin body, a control knob is fixedly connected to the top end of the control screw, the bottom end of the control screw penetrates through the pin body and extends into the installation cavity, through holes communicated with the inner wall of the installation cavity are formed in the left side and the right side of each fixing ring, two symmetrical reset springs are fixedly connected to the inner surfaces of the left side and the right side of the installation cavity, one ends, far away from the inner surface of the installation cavity, of the reset springs on the two sides of each through hole are fixedly connected with the same stressed hemisphere, and one side, close to, one end of the reinforcing rod, which is far away from the stressed hemisphere, extends into the through hole, and an extrusion disc positioned above the stressed hemisphere is fixedly connected to the outer surface of the control screw rod.

Preferably, five of the securing rings are in a rectangular array.

Preferably, the thread length of the outer surface of the control screw is not less than eight centimeters.

Preferably, the elastic coefficient of the return spring is five newtons per centimeter.

Preferably, the outer surface of the reinforcing rod is fixedly connected with a wear-resistant pad, and the outer surface of the stressed hemisphere is fixedly connected with a sliding-assistant pad.

Preferably, the connection mode between the control screw and the extrusion disc is welding.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a control knob plays the effect that the control extrusion dish goes up and down, plays the effect of effective control atress hemisphere and anchor strut extrusion rubber seal ring through the lift of extrusion dish, and then makes anchor strut extrusion rubber seal ring reach the effect that promotes the use steadiness behind the bolt patchhole again to reach the effect that promotes bolt service quality.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is a schematic structural diagram of the present invention.

In the figure: 1. a plug pin body; 2. a fixing ring; 3. a rubber seal ring; 4. controlling the screw; 5. a control knob; 6. a through hole; 7. a return spring; 8. a stressed hemisphere; 9. a reinforcing rod; 10. an extrusion disc; 11. and (7) installing a cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a composite pin shaft comprises a pin body 1, a mounting cavity 11 is formed inside the pin body 1, five fixing rings 2 are fixedly connected to the outer surface of the pin body 1, the outer diameters of the five fixing rings 2 are gradually increased from top to bottom, the five fixing rings 2 are in a rectangular array, rubber sealing rings 3 are fixedly connected to the outer surfaces of the fixing rings 2, a control screw 4 is in threaded connection with the top of the pin body 1, the length of the outer surface of the control screw 4 is not less than eight centimeters, a control knob 5 is fixedly connected to the top of the control screw 4, the bottom end of the control screw 4 penetrates through the pin body 1 and extends into the mounting cavity 11, through holes 6 communicated with the inner wall of the mounting cavity 11 are formed in the left side and the right side of the fixing rings 2, two symmetrical reset springs 7 located on the two sides of the, the elastic coefficient of reset spring 7 is five newtons per centimeter, the same atress hemisphere 8 of one end fixedly connected with that 11 internal surfaces were kept away from to reset spring 7 in through hole 6 both sides, one side fixedly connected with that atress hemisphere 8 is close to through hole 6 is located the anchor strut 9 between two reset spring 7, fixedly connected with wear pad on the surface of anchor strut 9, fixedly connected with helps smooth pad on the surface of atress hemisphere 8, the one end that anchor strut 9 kept away from atress hemisphere 8 extends to in through hole 6, fixedly connected with is located the stripper plate 10 of atress hemisphere 8 top on the surface of control screw 4, the connected mode between control screw 4 and the stripper plate 10 is the welding.

The utility model discloses in, when the user used the device, played the effect of control extrusion dish 10 lift through control knob 5, played the effect of effective control atress hemisphere 8 and anchor strut 9 extrusion rubber seal ring 3 through the lift of extrusion dish 10, and then made anchor strut 9 extrusion rubber seal ring 3 reach the effect that promotes the use steadiness behind the bolt patchhole again to reach the effect that promotes bolt quality of use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. The utility model provides a compound pin axle, includes bolt body (1), its characterized in that, installation cavity (11) have been seted up to the inside of bolt body (1), the fixed surface of bolt body (1) is connected with five solid fixed rings (2), five the external diameter top-down of solid fixed ring (2) increases gradually, fixedly connected with rubber seal ring (3) on the surface of solid fixed ring (2), the top threaded connection of bolt body (1) has control screw (4), the top fixedly connected with control knob (5) of control screw (4), inside bolt body (1) and extension to installation cavity (11) were run through to the bottom of control screw (4), through hole (6) with installation cavity (11) inner wall intercommunication are all seted up to the left and right sides of solid fixed ring (2), equal fixedly connected with is located two reset spring (7) of through hole (6) both sides and symmetry on the internal surface of installation cavity (11) left and right sides The mounting structure of the automobile engine is characterized in that one end of the inner surface of the mounting cavity (11) is far away from the reset springs (7) on two sides of the through hole (6), the same stressed hemisphere (8) is fixedly connected with one end of the inner surface of the mounting cavity (11), the stressed hemisphere (8) is close to the reinforcing rod (9) between the two reset springs (7), one end of the reinforcing rod (9) far away from the stressed hemisphere (8) extends into the through hole (6), and the outer surface of the control screw rod (4) is fixedly connected with the extrusion disc (10) above the stressed hemisphere (8).

2. A composite pin according to claim 1, characterized in that five of said fixing rings (2) are in a rectangular array.

3. A composite pin according to claim 1, characterised in that the length of the thread on the outer surface of the control screw (4) is not less than eight centimetres.

4. A composite pin according to claim 1, characterised in that the spring constant of the return spring (7) is five newtons per centimetre.

5. A composite pin according to claim 1, characterized in that a wear pad is fixedly connected to the outer surface of the reinforcing bar (9), and a sliding-aid pad is fixedly connected to the outer surface of the stressed hemisphere (8).

6. A composite pin according to claim 1, characterised in that the connection between the control screw (4) and the pressing disc (10) is a weld.