CN206432434U

CN206432434U - Bore spring cellular type probe adapter in a kind of needle tubing bottom

Info

Publication number: CN206432434U
Application number: CN201720048132.0U
Authority: CN
Inventors: 刘艳美
Original assignee: SHENZHEN AMOS SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: SHENZHEN AMOS SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2017-01-16
Filing date: 2017-01-16
Publication date: 2017-08-22
Anticipated expiration: 2027-01-16

Abstract

Spring cellular type probe adapter is bored the utility model discloses a kind of needle tubing bottom, solve existing probe adapter when in use, inwall of the spring easily with inner tube after compression rubs, so as to the problem of sending noise, its drip irrigation device is, including inner tube and spring, the mouth of pipe is inwardly offered from one end of said inner tube, the cavity connected with the mouth of pipe, and connected with the cavity and external diameter be less than the cavity external diameter spring eye, the spring is placed in the cavity, and there is the part spring to be embedded in the spring eye, the utility model can be reduced effectively to rub between the spring under working condition and the inwall of inner tube, have the advantages that to reduce noise.

Description

Bore spring cellular type probe adapter in a kind of needle tubing bottom

Technical field

The utility model is related to probe adapter technical field, relates more specifically to a kind of needle tubing bottom and bores the spy of spring cellular type Needle connector.

Background technology

With the progress and the development of technology of science and technology, such as digital camera, DV, laptop computer, mobile phone and PAD Swift and violent development has been obtained Deng portable digital product and has been widely applied.The power supply one that such portable digital product is used As be all rechargeable battery, and typically connected between battery and electrical equipment by probe adapter.

Fig. 1 and Fig. 2 are referred to, conventional probe adapter generally comprises needle shaft 10, inner tube 20 and spring 30, and spring 30 is filled Fit in the cavity 22 of inner tube 20, needle shaft 10 is riveted on inner tube 20 and contacted with spring 30.In use, needle shaft 10 is directly and power supply Contact, is used as electric power conduction；General mobile phone probe adapter requires that the resistance of probe adapter is relatively low, probe adapter Resistance has outside the Pass except the material with using, and also the contact area with needle shaft 10 and inner tube 20 has direct relation, the size of resistance It is inversely proportional with needle shaft 10 and the contact area of inner tube 20, i.e. the bigger resistance of contact area is smaller.Therefore, in order to increase needle shaft 10 with The contact area of inner tube 20, the end face beveling that needle shaft 10 is contacted with spring 30, the meeting in the presence of spring 30 of needle shaft 10 Generation eccentric motion, increase needle shaft 10 and the contact area of inner tube 20, that is, reduce the resistance between needle shaft 10 and inner tube 20 so that Probe adapter has more preferable electric connection.

But existing connector, the spring in the cavity of inner tube is in compression process, easily with the inwall of inner tube Generation rubs and produces noise.Therefore, also there is space to be modified.

Utility model content

The purpose of this utility model is that providing a kind of needle tubing bottom bores spring cellular type probe adapter, with reduction spring Occurs the advantage for rubbing and producing noise with the inwall of inner tube in the course of the work.

Above-mentioned purpose of the present utility model technical scheme is that：Bore spring in a kind of needle tubing bottom Cellular type probe adapter, including inner tube and spring, from one end of said inner tube inwardly offer the mouth of pipe, connect with the mouth of pipe Cavity and connected with the cavity and external diameter be less than the cavity external diameter spring eye, the spring is placed in the cavity It is interior, and there is the part spring to be embedded in the spring eye.

By using such scheme, the spring eye that external diameter is less than the external diameter of cavity plays positioning action to spring, reduces bullet Spring rubs in compression process with the inwall of inner tube, so as to have the advantages that to reduce noise.

Preferably, the bottom surface of the spring eye is lower arcuate surface.

By using such scheme, lower arcuate surface has more preferable compatible degree with spring.

Preferably, the inwall of said inner tube cave inward be formed with it is embedded recessed in the operating condition for the spring Groove.

By using such scheme, the groove being opened on the inwall of inner tube adds spring and inner tube under working condition The distance between inwall, so as to reduce the friction between spring and the inwall of inner tube, and then with reducing the excellent of noise Point.

Preferably, the groove is arc groove.

By using such scheme, arc groove can effectively reduce spring and groove compared to the groove with knuckle Inwall between friction, and then reduce noise.

Preferably, riveting has a needle shaft at the mouth of pipe of said inner tube, the needle shaft include being embedded in the cavity and The end seat of trapezoidal sectional view is obtained when the axis of the needle shaft is as Section line, corresponding to the long base of the trapezoidal sectional view The end seat outer wall outwardly convex be formed with conductive projection, the inwall of said inner tube offer for the conductive projection it is embedding Connect to form the chute of sliding connection.

By using such scheme, the work rotated in a circumferential direction that the conductive projection being connected in chute plays limitation needle shaft is slid With so that spring is embedded in groove after compressing.

Preferably, the conductive projection is flexible spherical conductive projection.

By using such scheme, in the operating condition, eccentric motion occurs for needle shaft, extrudes conductive projection, conductive projection Deform upon, so as to increase the contact area between conductive projection and the inwall of chute.

Preferably, the inwall of the chute is arc inner wall.

By using such scheme, there is higher compatible degree between arc inner wall and spherical conductive projection, especially exist When conductive projection is squeezed power and deformed upon, the contact area between conductive projection and the inwall of chute can be increased.

In summary, the utility model has the advantages that：

First, the spring eye that the external diameter offered in inner tube is less than the external diameter of cavity plays positioning action to spring, play The effect that spring rubs in compression process with the inwall of inner tube is reduced, so as to have the advantages that to reduce noise；

Second, the groove on the inwall of inner tube is opened in, the distance between inwall of increase spring and inner tube so that spring When compressing, in embedded groove, rubbed so as to have the advantages that to reduce between spring and the inwall of inner tube；

Third, being arranged on the outer wall corresponding to the long base for the trapezoidal sectional view that axis of the end seat along needle shaft is obtained Conductive projection, rabbets in the chute being opened on the inwall of inner tube, and is connected with chute formation sliding, can play limitation pin The effect that axle rotates in a circumferential direction, so that spring is embedded in groove after compressing.

Brief description of the drawings

Fig. 1 is the front view of prior art；

Fig. 2 is sectional view of the prior art along the axis of needle shaft；

Fig. 3 is sectional view of the present embodiment along the axis of needle shaft；

Fig. 4 is the close-up schematic view at A in Fig. 3.

In figure, 10, needle shaft；20th, inner tube；30th, spring；11st, needle shaft body；12nd, end seat；21st, the mouth of pipe；22nd, cavity；23、 Spring eye；24th, chute；25th, groove；121st, conductive projection.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Spring cellular type probe adapter, reference picture 3, including inner tube 20 are bored in a kind of needle tubing bottom, from one end of inner tube 20 to The interconnected mouth of pipe 21, cavity 22 and spring eye 23 are inside offered successively.

Riveting has needle shaft 10 at the mouth of pipe 21 of inner tube 20, and needle shaft 10 includes end seat 12 of the interlocking in the cavity 22 of inner tube 20 And it is shaped in the needle shaft body 11 of end seat 12.The end face of end seat 12 is inclined-plane, and end seat 12 is in needle shaft 10 Axis obtains trapezoidal sectional view when being Section line.

Fig. 4 is refer to, integrally formed with flexible on the outer wall of end seat 12 corresponding to the long base of trapezoidal sectional view Spherical conductive projection 121；And conductive projection 121 is rabbeted in the chute 24 being opened on the inwall of inner tube 20, slided to improve The inwall of chute 24 in compatible degree between groove 24 and conductive projection 121, the present embodiment is designed as arc inner wall.

While being moved into cavity 22 eccentric motion also occurs for the probe adapter under working condition, needle shaft 10, from And an extruding force is produced to conductive projection 121, deform upon conductive projection 121, so as to increase conductive projection 121 and chute The contact area of 24 inwalls, reduces the resistance of probe adapter.

Refer to cave inward relative to the opposite side for offering chute 24 on Fig. 3, the inwall of inner tube 20 and be formed with arc Groove 25, and groove 25 is opened in one end of close spring eye 23.

The conductive projection 121 being connected with the formation sliding of chute 24, plays a part of limitation needle shaft 10 and rotates in a circumferential direction, from And cause in the insertion groove 25 of spring 30 under compressive state；Opening up for groove 25, increases the inwall of spring 30 and inner tube 20 The distance between, so as to effectively reduce the friction between spring 30 and the inwall of inner tube 20, reduce noise.

This specific embodiment is only to explain of the present utility model, and it is not to limitation of the present utility model, ability Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but As long as all being protected in right of the present utility model by Patent Law.

Claims

1. spring cellular type probe adapter, including inner tube (20) and spring (30) are bored in a kind of needle tubing bottom, it is characterized in that：From described One end of inner tube (20) inwardly offer the mouth of pipe (21), the cavity (22) connected with the mouth of pipe (21) and with the cavity (22) connection and external diameter are less than the spring eye (23) of the external diameter of the cavity (22), and the spring (30) is placed in the cavity (22) It is interior, and there is the part spring (30) to be embedded in the spring eye (23).

2. spring cellular type probe adapter is bored in a kind of needle tubing bottom according to claim 1, it is characterized in that：The spring eye (23) bottom surface is lower arcuate surface.

3. spring cellular type probe adapter is bored in a kind of needle tubing bottom according to claim 1, it is characterized in that：Said inner tube (20) inwall, which caves inward, is formed with the groove (25) that the confession spring (30) is embedded in the operating condition.

4. spring cellular type probe adapter is bored in a kind of needle tubing bottom according to claim 3, it is characterized in that：The groove (25) it is arc groove (25).

5. spring cellular type probe adapter is bored in a kind of needle tubing bottom according to claim 3 or 4, it is characterized in that：In described The mouth of pipe (21) place riveting of pipe (20) has needle shaft (10), and the needle shaft (10) includes being embedded in the cavity (22) and described The end seat (12) of trapezoidal sectional view, the long base institute of the trapezoidal sectional view are obtained when the axis of needle shaft (10) is as Section line The outer wall outwardly convex of the corresponding end seat (12) is formed with conductive projection (121), the inwall of said inner tube (20) and opened up Have for the conductive projection (121) interlocking to form the chute (24) of sliding connection.

6. spring cellular type probe adapter is bored in a kind of needle tubing bottom according to claim 5, it is characterized in that：The conductive stud Block (121) is flexible spherical conductive projection (121).

7. spring cellular type probe adapter is bored in a kind of needle tubing bottom according to claim 6, it is characterized in that：The chute (24) inwall is arc inner wall.