CN218586521U - Anti-disengagement structure of miniature screw - Google Patents

Abstract

The utility model relates to an electric connector connects technical field, specifically discloses an anti-disengaging structure of miniature screw, constitute including plug shell, threaded socket shell and the vertical locking screw who passes the plug shell that has the contact pin subassembly, the vertical mounting hole of offering the confession locking screw and passing in both sides of plug shell, the mounting hole divide into upper end and lower extreme, and upper end aperture ratio lower extreme aperture is big, locking screw's middle part is provided with the path department that the diameter is less than the lower extreme aperture, place the bush that is used for chucking screw in the mounting hole, the path department that blocks locking screw is passed through extrusion deformation in the top of bush. The aim at of this patent solves in narrow and small equipment space, uses the problem that the screw installation is more wasted time and energy, secondly solves the screw and loses easily in the narrow and small space of equipment, influences the problem of equipment normal operating.

Description

Anti-disengagement structure of miniature screw

Technical Field

The utility model relates to an electric connector technical field, in particular to miniature screw's anti-disengaging structure.

Background

The connector generally includes a plug and a socket, and when in use, the plug and the socket are plugged, and contact pieces of the plug and the socket are plugged with each other to complete the switching of equipment signals or current. The screw is used as one of the accessory parts of the connector, the main purpose is to firmly fix a connected plug or socket on equipment, the stable signal transmission between the equipment is ensured or the accessory product part of the equipment is fixed, along with the improvement of modern equipment, the equipment is gradually miniaturized, and further the inner space of the miniaturized equipment is smaller.

When using the accessory product of screw installation equipment, the assembly screw operation is inconvenient in the narrow and small space of equipment, does not allow the action of artifical secondary equipment screw in more equipment inside simultaneously, so need the screw directly once locking screw in narrow and small space, avoid the secondary equipment, secondly in narrow and small space, the screw is lost more easily and falls to equipment inside, the screw that drops can lead to the fact unnecessary risk for equipment, influences the normal work of equipment.

Chinese patent with publication number CN208935124U discloses a floating non-releasing screw structure, which includes a connector, a connected component, a non-releasing screw, a stop spring, a floating nut, and a spring washer. The screw hole of connecting piece is provided with two rings of diameters annular that increase step by step to the connecting piece one side, and wherein the bigger one of diameter's annular is the stopping groove, is equipped with the thrust reed in stopping groove department cover, and this thrust reed is spill reed structure, and both ends push up respectively tightly on connecting piece terminal surface and stopping groove.

Through setting up the annular that two rings of diameters increase step by step in the above-mentioned scheme to and concave thrust reed, and numerous structure, make the volume of screw great, in the inside of small-size equipment, the great screw of volume is operated and is inconvenient in narrow and small space, screws up the screw in narrow and small space simultaneously, and is harder, and secondly, rotatory screw need many times to rotate in narrow and small space just can reach the effect of fastening, and is more troublesome.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides an anti-disengaging structure of miniature screw solves in narrow and small equipment space, uses the problem that the mounting screw is more wasted time and energy, secondly solves the screw and loses easily in equipment narrow and small space, influences the normal moving problem of equipment.

In order to solve the above problem, the utility model discloses the technical scheme who adopts is:

the utility model provides an anti-disengaging structure of miniature screw, includes plug shell, threaded socket shell that has the contact pin subassembly and the vertical locking screw who passes the plug shell of constituteing, the vertical mounting hole that offers the locking screw and pass of both sides of plug shell, the mounting hole divide into upper end and lower extreme, and upper end aperture ratio lower extreme aperture is big, the middle part of locking screw is provided with the path department that the diameter is less than the lower extreme aperture, place the bush that is used for chucking screw in the mounting hole, the path department that blocks locking screw is passed through extrusion deformation in the top of bush.

The principle of the scheme is as follows:

set up one end path department in locking screw's middle part, put into the mounting hole back at locking screw, through putting into the bush in the mounting hole that has locking screw, then use the instrument and enter into the downthehole extrusion bush of mounting hole from locking screw's upper portion, make the bush warp, the bush warp the back, locking screw is blocked in the mounting hole, but locking screw can rotate after the bush extrusion warp, locking screw can't freely withdraw from plug housing lower extreme, and then make locking screw and plug housing group become integrative.

The beneficial effect that this scheme produced is:

1. compared with the prior art that a screw, a stop spring, a floating nut and a flat gasket are not separated, because of more parts, more parts are easy to lose during assembly, and secondly, when the parts are assembled, more parts can reduce the assembly efficiency; and in this application scheme, set up a segment path department through the middle part at locking screw, then carry out extrusion deformation through the bush of putting into in the mounting hole for locking screw and plug shell group become integrative, need not use too much part also can play the effect that prevents the screw and deviate from.

Further, the cross sectional shape of bush is "protruding" shape, and the bottom diameter of bush is unanimous with the aperture of mounting hole upper end, and the upper portion of bush receives the extrusion for the upper portion of bush warp the card in path department, and the aperture of bush portion diameter and mounting hole upper end is unanimous simultaneously can make things convenient for the bush to put into the mounting hole, and the bush can not drop from the lower extreme of mounting hole.

Further, the length of the path department of locking screw is greater than the length of bush, and path department upper portion is the screw rod, and when bush warp chucking path department, the remaining length of path department can guarantee that locking screw can reciprocate in the mounting hole to make locking screw can not fall out from the lower extreme of plug shell.

Furthermore, the screw head of the locking screw is positioned at the lower end of the mounting hole, a transverse through groove is formed in the top surface of the screw head, the depth of the through groove in the top surface of the screw head is 0.8mm, and the width of the through groove is 0.5mm.

Furthermore, a dustproof cover is inserted into the top of the plug shell with the locking screw assembled, and after the locking screw is installed on the plug shell, the dustproof cover is used for covering the butt joint end of the top surface of the plug, so that dust is prevented from entering a contact pin assembly in the butt joint end, and butt joint of products is prevented from being influenced.

Furthermore, the screw rod part of the locking screw is screwed into the threaded holes formed in the two sides of the socket shell, the top screw rod of the locking screw is screwed into the threaded holes in the two sides of the socket, the connection between the plug and the socket is realized, and the contact pins cannot easily fall off.

Drawings

Fig. 1 is a schematic view of a locking screw of the present invention;

fig. 2 is a schematic view of the plug housing of the present invention;

FIG. 3 is a schematic view of the locking screw of the present invention being placed in the plug housing;

FIG. 4 is a schematic view of the structure of the bushing of the present invention;

FIG. 5 is a schematic view of the bushing of the present invention being placed in a plug housing;

FIG. 6 is a schematic view of a bushing deforming clamping locking screw of the present invention;

FIG. 7 is a schematic view of a dust cap of the present invention;

fig. 8 is a schematic view of a socket housing according to the present invention;

fig. 9 is a schematic view of the installation of the plug housing and the socket housing of the present invention.

Reference numerals in the drawings of the specification include:

the plug comprises a locking screw 1, a small-diameter part 1-1, a screw rod 1-2, a through groove 1-3, a plug shell 2, an upper end 2-1, a lower end 2-2, a mounting hole 2-3, a lining 3, a socket shell 4, a threaded hole 4-1, a pin assembly 5, an adhesive 5-1 and a dust cover 6.

Detailed Description

The following is further detailed by way of specific embodiments:

referring to fig. 2, mounting holes 2-3 are formed in the left and right sides of the plug housing 2, and the top of the plug housing 2 is a butt joint end that is butted against the socket housing 4.

The embodiment is basically as shown in the attached figure 1:

as shown in fig. 7, a pin assembly 5 is placed in the middle of a plug housing 2, an adhesive 5-1 is filled and sealed at the bottom of the plug housing 2 inserted with the pin assembly 5, and the adhesive 5-1 is preferably black DG-4 glue; as shown in the attached figure 2, mounting holes 2-3 for placing locking screws 1 are formed in the left side and the right side of a plug shell 2, the mounting holes 2-3 are inverted and convex, the upper portions of the mounting holes 2-3 are upper ends 2-1, the lower portions of the mounting holes 2-3 are lower ends 2-2, and the aperture of the upper ends 2-1 is larger than that of the lower ends 2-2.

As shown in figure 1, the locking screw consists of a screw rod 1-2 at the top and a nut at the bottom, and the middle part of the locking nut is provided with a small-diameter part 1-1 with the diameter smaller than the aperture of the lower end 2-2 of the mounting hole 2-3; as shown in the attached figure 3, a locking screw 1 is inserted into a mounting hole 2-3 from the lower end 2-2 of the mounting hole 2-3, the head of the locking screw 1 is tightly attached to the lower end 2-2 of the mounting hole 2-3, and the screw 1-2 of the locking screw 1 extends towards the upper end 2-1 of the mounting hole 2-3; the nut part of the locking screw 1 is provided with a transverse through groove 1-3, the depth of the through groove 1-3 is 0.8mm, and the width of the through groove is 0.5mm.

The bushing 3 is placed in the mounting hole 2-3 into which the locking screw 1 is inserted, the bushing 3 is structurally shown in the attached drawing 4, the cross section of the bushing 3 is in a convex shape, the diameter of the bottom of the bushing 3 is consistent with the diameter of 2-1 of the upper end of the mounting hole 2-3, when the bushing 3 is placed in the mounting hole 2-3, the bushing 3 can be clamped on the top surface of 2-2 of the lower end of the mounting hole 2-3, the bushing 3 is made of stainless steel, when the bushing 3 is placed in the mounting hole 2-3, the bushing 3 in the mounting hole 2-3 is extruded by a tool, so that the upper portion of the bushing 3 is deformed, the upper portion of the bushing 3 is clamped at the position of 1-1 of the small diameter after being deformed, a certain gap is formed between the bushing 3 and the side wall of 1-1 of the small diameter after the bushing 3 is deformed, and therefore, the locking screw 1 can rotate and move up and down with a small amplitude, and the deformed bushing 3 is shown in the attached drawing 5.

A dustproof cover 6 is placed above the plug shell 2 with the assembled locking screw 1, and the dustproof cover 6 can prevent external sundries from damaging the contact pin assembly 5 in the plug shell 2 in the transportation process and affecting the connection of subsequent equipment.

The dustproof cover 6 is taken down, the plug shell 2 is butted with the socket shell 4, a screwdriver is inserted into the through groove 1-3 of the screw head of the locking screw 1, and the screw rod 1-2 part of the locking screw 1 is screwed into the threaded hole 4-1 of the socket shell 4, so that the butt joint of the plug and the socket is realized; in the narrow space of equipment, because plug shell 2 and locking screw 1 installation are as an organic whole for when plug shell 2 docks with socket shell 4, locking screw 1 can not lose and drop, simultaneously in the installation butt joint process, only need with spiral screw in socket shell 4's screw hole 4-1 in, need not carry out the secondary operation, can link together plug and socket, saved a large amount of time, promoted efficiency.

The specific implementation process is as follows:

inserting a locking screw 1 into the mounting hole 2-3 from the lower end 2-2 of the mounting hole 2-3 of the plug housing 2; then, the bushing 3 is placed into the mounting hole 2-3 from the upper end 2-1 of the mounting hole 2-3, a tool is used for stretching into the mounting hole 2-3 where the locking screw 1 is placed, the lock sleeve in the mounting hole 2-3 is extruded, and the upper portion of the extruded lock sleeve is bent to be clamped at the small-diameter position 1-1; after the lock sleeve is deformed, the locking screw 1 can normally rotate and move up and down for a short distance, the locking screw 1 and the plug shell 2 are connected into a whole, the dust cover 6 is tightly clamped at the upper part of the assembled locking screw 1, and the plug shell 2 can be transported; when the plug shell 2 needs to be in butt joint with the socket shell 4, the dust cover 6 is taken down, the plug shell 2 is in butt joint with the socket shell 4, at the moment, the locking screw 1 is rotated clockwise, the screw rod 1-2 part of the locking screw 1 is screwed into the threaded hole 4-1 of the socket shell 4, the plug shell 2 and the socket can be connected into a whole, and at the moment, the butt joint of the plug and the socket is realized.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the schemes is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (6)

1. The utility model provides an anti-disengaging structure of miniature screw, includes plug shell, threaded socket shell that has the contact pin subassembly and the vertical locking screw who passes plug shell and constitutes its characterized in that: the plug comprises a plug shell and is characterized in that mounting holes for locking screws to penetrate through are vertically formed in two sides of the plug shell, the mounting holes are divided into an upper end and a lower end, the aperture of the upper end is larger than that of the lower end, a small-diameter part with the diameter smaller than that of the lower end is arranged in the middle of each locking screw, a bushing for clamping the screws is placed in each mounting hole, and the top of each bushing clamps the small-diameter part of each locking screw through extrusion deformation.

2. The anti-pullout structure for minisize screw according to claim 1, wherein: the cross-sectional shape of bush is "protruding" shape, and the bottom diameter of bush is unanimous with the aperture of mounting hole upper end.

3. The anti-pullout structure for minisize screw according to claim 1, wherein: the length of the small diameter part of the locking screw is larger than that of the lining, and the upper part of the small diameter part is a screw rod.

4. The anti-back-out structure of a minisize screw according to claim 1, wherein: the screw head of the locking screw is positioned at the lower end of the mounting hole, and the top surface of the screw head is provided with a transverse through groove.

5. The anti-back-out structure of a minisize screw according to claim 1, wherein: and a dust cover is inserted into the top of the plug shell of the assembled locking screw.

6. The anti-pullout structure for minisize screw according to claim 1, wherein: and the screw rod part of the locking screw is screwed into the threaded holes arranged at the two sides of the socket shell.

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