CN207229524U

CN207229524U - Reinforced snap ring

Info

Publication number: CN207229524U
Application number: CN201721071017.1U
Authority: CN
Inventors: 计文通
Original assignee: Ruian City Racing Car Accessories Ltd Co
Current assignee: Ruian City Racing Car Accessories Ltd Co
Priority date: 2017-08-25
Filing date: 2017-08-25
Publication date: 2018-04-13
Anticipated expiration: 2027-08-25

Abstract

A kind of Hardware fitting is the utility model is related to, more particularly to a kind of reinforced snap ring.The utility model provides following technical solution：A kind of reinforced snap ring, include the elastic body that ring-type has opening, elastic body includes built-in matrix and the elastomeric overmold body being sheathed on outside built-in matrix and is sheathed on the external outer layer of elastomeric overmold, its built-in matrix is cricoid steel core bar, elastomeric overmold body is the helical form elastic ring being wound in outside built-in matrix, and outer layer is injection in the resilient plastic set outside helical form elastic ring.Using above-mentioned technical proposal, there is provided a kind of to be unlikely to deform, withstand forces reinforced snap ring strong, simple in structure.

Description

Reinforced snap ring

Technical field

A kind of Hardware fitting is the utility model is related to, more particularly to a kind of reinforced snap ring.

Background technology

Snap ring is a kind of hardware locking member, it is broadly divided into axis snap ring and hole snap ring, it is molded by punch forming There is the elastic body of opening for ring-type afterwards.Its main function is to implement positioning to the axial of part, has axial retention effect.

Traditional snap ring is steel part punch forming, and in use, its axial both ends needs to bear larger active force, Easily there is situation about deforming in much time using.

At present, field technology personnel are in order to improve its endurance, it will usually snap ring is thickeied or makes the transversal of snap ring Face broadens, and not only expands its volume, its elastic force is deteriorated, while the change of its stress intensity is limited, therefore, how to strengthen card The stress intensity of ring, ensures that snap ring does not deform the side that always field technology personnel constantly research and develop in use To.

The content of the invention

In view of the deficienciess of the prior art, the utility model provide one kind be unlikely to deform, withstand forces it is strong, simple in structure Reinforced snap ring.

To achieve the above object, the utility model provides following technical solution：A kind of reinforced snap ring, includes ring-type Elastic body with opening, it is characterised in that：The elastic body includes built-in matrix and is sheathed on outside built-in matrix Elastomeric overmold body and be sheathed on the external outer layer of elastomeric overmold, its built-in matrix is cricoid steel core bar, elastomeric overmold body For the helical form elastic ring being wound in outside built-in matrix, outer layer is injection in the resilient plastic set outside helical form elastic ring.

Using above-mentioned technical proposal, built-in matrix is supporting body, and the helical form elastic ring being arranged thereon can alleviate built-in base The stress of body, exterior pressure are eased by helical form elastic ring, and a small amount of pressure causes to impact to built-in matrix, so that The stress intensity of snap ring is improved, is unlikely to deform.The setting of resilient plastic set can then be implemented to protect to helical form elastic ring, prevent Helical form elastic ring damages.

The utility model is further arranged to：Helical form elastic ring is enclosed with least two, and circle body in helical form elastic ring Internal diameter and built-in matrix contradict, the inner wall of outside diameter and resilient plastic set contradicts.

Using above-mentioned technical proposal, so setting further to relieve stress, and prevent built-in matrix deformation, and spiral Shape elastic ring contradicts endpoint using the internal diameter and outside diameter of its circle body as elasticity, its elastic force is not easy to lose.

The utility model is further arranged to：Resilient plastic set include upper cover and with the dismountable lower cover of upper cover, on There is the placed cavity placed for built-in matrix and helical form elastic ring between lid and lower cover, pass through locking piece between upper cover and lower cover Connection.

Wherein, locking piece include on upper lid and towards the locking hooked scarf of lower cover extension and on lower lid and with lock Determine the hook groove of hooked scarf adaptation.

Using above-mentioned technical proposal, so set it is convenient for disassembly and assembly, after helical form elastic ring follows the string power, easy to it Implement to replace.

The utility model is further arranged to：The circular in cross-section of steel core bar.

Using above-mentioned technical proposal, the installation easy to helical form elastic ring is so set, at the same make helical form elastic ring with Combination between steel core bar is more close.

The utility model is further described below in conjunction with the accompanying drawings.

Brief description of the drawings

Fig. 1 is the structure diagram of the utility model embodiment；

Fig. 2 is the A-A diagrammatic cross-sections of Fig. 1；

Fig. 3 is the structure diagram that resilient plastic covers in the utility model embodiment.

Embodiment

A kind of reinforced snap ring as shown in Fig. 1-3, includes the elastic body 1 that ring-type has opening, elastic body 1 Include built-in matrix 2 and the elastomeric overmold body being sheathed on outside built-in matrix 2 and be sheathed on the external outer layer of elastomeric overmold, in it It is cricoid steel core bar 21 to put matrix 2, and elastomeric overmold body is the helical form elastic ring 3 being wound in outside built-in matrix 2, and outer layer is It is molded in the resilient plastic set 4 outside helical form elastic ring 3.In such scheme, built-in matrix 2 is supporting body, the spiral shell being arranged thereon Rotation shape elastic ring 3 can alleviate the stress of built-in matrix 2, and exterior pressure is eased by helical form elastic ring 3, a small amount of pressure Power causes to impact to built-in matrix 2, so as to improve the stress intensity of snap ring, is unlikely to deform.The setting of resilient plastic set 4 then may be used Helical form elastic ring 3 is implemented to protect, prevents helical form elastic ring 3 from damaging.For the ease of the installation of helical form elastic ring 3, together When make the combination between helical form elastic ring 3 and steel core bar 21 more close, the circular in cross-section of steel core bar 21.When So, the cross section of steel core bar 21 is rectangular or triangular shape be also can shape, simply with the conjugation of helical form elastic ring 3 compared with Difference, thus the utility model preferably the former.

In the utility model embodiment, helical form elastic ring 3 is enclosed with least two, and circle body in helical form elastic ring 3 Internal diameter contradicted with built-in matrix 2, the inner wall of outside diameter and resilient plastic set 4 contradicts.Above-mentioned setting can be relieved stress further, Prevent built-in matrix 2 from deforming, and helical form elastic ring 3 contradicts endpoint using the internal diameter and outside diameter of its circle body as elasticity, its Elastic force is not easy to lose.

For the ease of the installation of helical form elastic ring 3, resilient plastic set 4 includes upper cover 41 and dismountable with upper cover 41 Lower cover 42, has the placed cavity 43 placed for built-in matrix 2 and helical form elastic ring 3, upper cover 41 between upper cover 41 and lower cover 42 It is connected between lower cover 42 by locking piece 44.The lock hook that locking piece includes in upper cover 41 and extends towards lower cover 42 Block 411 and the hook groove 421 being adapted on lower cover 42 and with locking hooked scarf 411.After helical form elastic ring 3 follows the string power, Easy to implement to replace to helical form elastic ring 3.

Claims

1. a kind of reinforced snap ring, includes the elastic body that ring-type has opening, it is characterised in that：Elastic body's bag Include built-in matrix and the elastomeric overmold body being sheathed on outside built-in matrix and be sheathed on the external outer layer of elastomeric overmold, its built-in base Body is cricoid steel core bar, and elastomeric overmold body is the helical form elastic ring being wound in outside built-in matrix, and outer layer is injection in spiral shell Revolve the resilient plastic set outside shape elastic ring.

2. reinforced snap ring according to claim 1, it is characterised in that：The helical form elastic ring has at least two Circle, and the internal diameter of circle body is contradicted with built-in matrix in helical form elastic ring, the inner wall of outside diameter and resilient plastic set contradicts.

3. reinforced snap ring according to claim 1 or 2, it is characterised in that：The resilient plastic set includes upper cover And with the dismountable lower cover of upper cover, the placed cavity placed between upper cover and lower cover with the built-in matrix of confession and helical form elastic ring, Connected between upper cover and lower cover by locking piece.

4. reinforced snap ring according to claim 3, it is characterised in that：The locking piece include on upper lid and The hook groove being adapted to towards the locking hooked scarf of lower cover extension and on lower lid and with locking hooked scarf.

5. according to the reinforced snap ring described in claim 1 or 2 or 4, it is characterised in that：The cross section of the steel core bar is in It is circular.

6. reinforced snap ring according to claim 3, it is characterised in that：The circular in cross-section of the steel core bar.