CN214367141U

CN214367141U - Pre-embedded pin pile thread sleeve for injection molding shell

Info

Publication number: CN214367141U
Application number: CN202120129341.4U
Authority: CN
Inventors: 陈瑛; 朱林
Original assignee: Kunshan Sanyi Yutian Electronic Technology Co ltd
Current assignee: Kunshan Sanyi Yutian Electronic Technology Co ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-10-08
Anticipated expiration: 2031-01-18

Abstract

The utility model discloses a pre-buried formula round pin stake swivel nut for moulding plastics casing, including possessing the hollow shaft swivel nut main part that link up the screw thread lumen, the one end of hollow shaft swivel nut main part is equipped with the spacing end cap of circumference, is equipped with annular groove between the spacing end cap of circumference and the hollow shaft swivel nut main part, and the outer peripheral face of hollow shaft swivel nut main part is for opening the coarse surface. The utility model discloses can improve the cohesion between swivel nut and the casing of moulding plastics, satisfy the spacing and the spacing demand of axial of circumference, it is firm to carry on stably, is difficult for producing the pine and takes off, has prolonged effective life cycle. The anti-skidding bolt has the design of an anti-skidding end cap, the shell can be protected on one hand, the phenomenon of thread slipping of the bolt can be prevented on the other hand, and the requirement for locking the bolt relative to an external bolt can be met without a gasket. The annular sinking platform easy to inject and seal is adopted, so that the injection molding body is effectively prevented from invading the through threaded pipe cavity, and the qualification rate of pre-buried molded products is improved.

Description

Pre-embedded pin pile thread sleeve for injection molding shell

Technical Field

The utility model relates to a pre-buried formula round pin stake swivel nut for moulding plastics casing belongs to the technical field who buries the formula swivel nut.

Background

A large number of locking parts can exist in the industrial production process, the threaded connection type fixation can be realized through the locking parts, and the injection molding part is soft in material texture, so that the threaded connection stability is difficult to guarantee by directly processing the threaded passage on the injection molding part, and particularly, the threaded passage is abraded and even deformed when bolts are frequently assembled and disassembled.

Aiming at the situation, a pre-embedded pin pile screw sleeve can be adopted, the pin pile screw sleeve is a pipe shaft body traditionally, tapping thread forming is carried out in the pipe shaft body, when a workpiece is injected, the pipe shaft body is injected in the injection body, and therefore the built-in requirement of the screw sleeve is achieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the not enough of above-mentioned prior art, combine the relatively poor problem that easily leads to hollow shaft form swivel nut pine to take off of stability between traditional hollow shaft form swivel nut and the injection molding, provide the pre-buried formula round pin stake swivel nut that is used for the casing of moulding plastics.

In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:

the pre-embedded pin pile swivel nut for the injection molding shell comprises a tubular shaft swivel nut main body with a through thread tube cavity, a circumferential limiting end cap is arranged at one end of the tubular shaft swivel nut main body, an annular groove is arranged between the circumferential limiting end cap and the tubular shaft swivel nut main body,

the outer peripheral surface of the tubular shaft thread insert main body is a rough surface.

Preferably, the rough surface is provided with a plurality of annular wire drawing grooves which are axially and uniformly distributed at intervals.

Preferably, the outer contour of the circumferential limiting end cap is a polygon, and the polygon comprises an equihexagonal shape, a triangular shape, a rectangular square shape and a trapezoidal shape.

Preferably, the top end face of the circumferential limiting end cap is an anti-slip end face.

Preferably, the anti-slip end face is a linear wire drawing rough face or a concentric wire drawing rough face.

Preferably, the top end and the bottom end of the through threaded pipe cavity are respectively provided with an injection molding sealed annular sinking platform.

The beneficial effects of the utility model are mainly embodied in that:

1. the binding force between the threaded sleeve and the injection molding shell can be improved, the circumferential limiting requirement and the axial limiting requirement are met, the carrying is stable and firm, the looseness cannot be easily generated, and the effective service cycle is prolonged.

2. The anti-skidding bolt has the design of an anti-skidding end cap, the shell can be protected on one hand, the phenomenon of thread slipping of the bolt can be prevented on the other hand, and the requirement for locking the bolt relative to an external bolt can be met without a gasket.

3. The annular sinking platform easy to inject and seal is adopted, so that the injection molding body is effectively prevented from invading the through threaded pipe cavity, and the qualification rate of pre-buried molded products is improved.

Drawings

Fig. 1 is a schematic structural diagram of a pre-buried pin pile thread insert for an injection molding housing according to the present invention.

Fig. 2 is a schematic view of the sectional structure of the pre-embedded pin stud insert for injection molding of the housing of the present invention.

Fig. 3 is a schematic structural view of a specific embodiment of the circumferential limiting end cap of the present invention.

Detailed Description

The utility model provides a pre-buried formula round pin stake swivel nut for moulding plastics casing. The technical solution of the present invention will be described in detail below with reference to the accompanying drawings so as to be easier to understand and grasp.

A pre-buried formula round pin stake swivel nut for moulding plastics casing, as shown in fig. 1 to 3, including possessing the hollow shaft swivel nut main part 1 that link up screw cavity 2, the one end of hollow shaft swivel nut main part 1 is equipped with spacing end cap 3 of circumference, is equipped with annular groove 4 between spacing end cap 3 of circumference and the hollow shaft swivel nut main part 1, and the outer peripheral face of hollow shaft swivel nut main part 1 is for opening rough surface 5.

The specific implementation process and principle description are as follows:

the pre-embedded pin pile thread sleeve is used for limiting and arranged in an injection mold and is integrally formed with an injection molding shell, the whole pre-embedded pin pile thread sleeve is fixed in the injection molding shell in a pre-embedded mode, and the top end face of the circumferential limiting end cap 3 is exposed.

The circumference limiting of the injection molding shell can be realized through the circumference limiting end cap 3, the influence of the transmission torque of an external bolt and the process of threading the through thread pipe cavity 2 is prevented, and the probability of loosening of the relative movement of the circumference is reduced.

And annular groove 4 can realize the relative spacing stability of axial with opening 5 designs of rough surface, can have the obturator of filling this annular groove 4 promptly at the in-process of moulding plastics, the obturator with mould plastics casing own formula as an organic whole, so increased axial stability, simultaneously, it can make tubular shaft swivel nut main part 1 and mould plastics between the casing cohesion more excellent to open rough surface 5.

In one embodiment, the rough surface 5 is provided with a plurality of annular wire drawing grooves 6 which are axially and uniformly distributed at intervals. This increases the axial bonding stability, but this embodiment is the rough surface 5 structure of the preferred embodiment, and it can also be achieved by sandblasting or the like. Only the requirement of stability of the injection molding binding force needs to be met.

The outer contour of the circumferential limiting end cap 3 in the scheme is a polygon, and the polygon comprises an equihexagonal shape, a triangular shape, a rectangular square shape and a trapezoidal shape. Which preferably takes the form of an equihexagonal shape as shown in figure 3.

In one embodiment, the top end surface of the circumferential limiting end cap 3 is a non-slip end surface 7. The anti-slip end face is a linear wire drawing rough face or a concentric wire drawing rough face.

Specifically, as shown in fig. 3, the drawing is a drawing of a linear drawn rough surface, and of course, concentric drawn rough surfaces and the like may be adopted, and are mainly used for abutting and matching with a bolt cap of an external screw, so that the phenomena of thread sliding and the like are effectively prevented, and meanwhile, the injection molding shell is not damaged by transitional compression joint.

In one embodiment, the top end and the bottom end of the through threaded lumen 2 are respectively provided with an injection-molded sealed annular sinking platform 8.

Specifically, the threaded pipe sleeve is of a tapping full-thread structure in the prior art, operation difficulty is brought to an injection molding sealing pipe cavity, an end face sealing structure is generally adopted, and end face sealing is difficult to achieve due to the fact that the design of wire drawing and the like exists in the scheme, so that the design of the annular sinking platform 8 is adopted, the sealing pin column cross-connection sealing requirement during injection molding is met, and the sealing difficulty is reduced.

Can discover through the above description, the utility model is used for the pre-buried formula round pin stake swivel nut of casing of moulding plastics can improve the swivel nut and mould plastics the cohesion between the casing, satisfies the spacing and the spacing demand of axial of circumference, carries on stably firmly, and difficult production pine takes off, has prolonged effective life cycle. The anti-skidding bolt has the design of an anti-skidding end cap, the shell can be protected on one hand, the phenomenon of thread slipping of the bolt can be prevented on the other hand, and the requirement for locking the bolt relative to an external bolt can be met without a gasket. The annular sinking platform easy to inject and seal is adopted, so that the injection molding body is effectively prevented from invading the through threaded pipe cavity, and the qualification rate of pre-buried molded products is improved.

The above technical solutions of the present invention have been fully described, and it should be noted that the present invention is not limited by the above description, and all technical solutions formed by equivalent transformation or equivalent transformation adopted by the spirit of the present invention in the aspects of structure, method or function by those of ordinary skill in the art all fall within the protection scope of the present invention.

Claims

1. A pre-buried formula round pin stake swivel nut for moulding plastics casing, its characterized in that:

comprises a tubular shaft swivel nut main body with a through thread pipe cavity, one end of the tubular shaft swivel nut main body is provided with a circumferential limiting end cap, an annular groove is arranged between the circumferential limiting end cap and the tubular shaft swivel nut main body,

2. The pre-buried peg insert for an injection molded housing of claim 1, wherein:

the rough surface is provided with a plurality of annular wire drawing grooves which are axially and uniformly distributed at intervals.

3. The pre-buried peg insert for an injection molded housing of claim 1, wherein:

the outer contour of the circumferential limiting end cap is a polygon, and the polygon comprises an equihexagonal shape, a triangular shape, a rectangular square shape and a trapezoidal shape.

4. The pre-buried peg insert for an injection molded housing of claim 1, wherein:

the top end face of the circumferential limiting end cap is an anti-skidding end face.

5. The pre-buried peg insert for an injection molded housing of claim 4, wherein:

the anti-slip end face is a linear wire drawing rough face or a concentric wire drawing rough face.

6. The pre-buried peg insert for an injection molded housing of claim 1, wherein:

and the top end and the bottom end of the through threaded pipe cavity are respectively provided with an injection molding sealed annular sinking platform.