CN201994471U

CN201994471U - Spring loading needle with crown spring

Info

Publication number: CN201994471U
Application number: CN2010206670752U
Authority: CN
Inventors: 董季汉
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-13
Filing date: 2010-12-13
Publication date: 2011-09-28
Anticipated expiration: 2020-12-13

Abstract

The utility model relates to a spring loading needle with a crown spring. The spring loading needle comprises a needle tube, a cylindrical spiral compression spring, a crown spring and a needle shaft. The crown spring is arranged at the bottom of the needle tube, the spring is arranged inside the needle tube, and the needle shaft comprises a needle head, a needle body step and a needle tail. The needle body step and the needle tail are arranged inside the needle tube, and the spring is arranged between the needle shaft and the crown spring. A tube orifice of the needle tube is bent inwards and riveted so as to limit the needle body step of the needle shaft inside the needle tube; when the needle shaft is downwards pressed to a working height, the needle tail is inserted into the crown spring; and each metal strip of the crown spring is in contact with the needle tail.

Description

The spring-loaded pin of band hat spring

Technical field

The utility model belongs to electric connector field, particularly relates to a kind of spring-loaded pin with the hat spring.

Background technology

Traditional spring-loaded pin electrical connector comprises needle shaft, three parts of needle tubing and spring.Spring is installed in the needle tubing, and needle shaft is packed into, and the compression spring produces elastic force behind the needle tubing, and needle shaft has a step near spring one end, in the nose end of the needle tubing mode by rolling the ditch or the riveting mouth of pipe with the step limits of needle shaft inside at needle tubing.Select suitable material for use, it is long that this structure has mechanical endurance, saves the advantage in space.For needle shaft can be moved in needle tubing smoothly, needle shaft and needle tubing are with matched in clearance.Like this, when being shaken or impact, needle shaft can contact unstable because of beat with needle tubing, when serious even the hit of the generation signal of telecommunication.

Hat spring socket and wire spring socket use on contact pin connector that to have a contact resistance low, and the current load performance is good greatly, the good advantage of the anti-hit performance of contact stabilization, and the while also has less contact engaging and separating force.Though hyperboloid wire spring socket is called as the best interconnection technique of present reliability on performance, structure is than hat spring complexity, so cost is higher, and the performance of jack compact in size aspect is also poor than the hat spring.

The spring-loaded pin of the band hat spring that the utility model proposes, changed the needle shaft of traditional spring-loaded pin and the way of contact of needle tubing, by the hat spring that increases, needle shaft and needle tubing are realized Elastic Contact, improve the electric property of conventional springs loading pin, improved the anti-hit performance of spring-loaded pin.

Summary of the invention

The purpose of this utility model is, a kind of spring-loaded pin with the hat spring is provided, and has and improves existing spring-loaded pin electric property, improves the beneficial effect of the reliability of spring-loaded pin.

To achieve these goals, the utility model adopts following technical scheme.

A kind of spring-loaded pin with the hat spring comprises needle tubing, hat spring, cylindroid helical-coil compression spring and needle shaft.

Described needle tubing comprises that the tube wall made from the high-conductive metal material is divided into two sections, and is less near one section tube wall internal diameter of pipe bottom, bigger near one section tube wall internal diameter of the mouth of pipe, the blind hole needle tubing that the pipe underseal closes, and this needle tubing can be with bar through the machine work manufacturing.

Described needle tubing comprises that the bottom centre position made from the high-conductive metal material has a through hole that diameter is less, the needle tubing of tube wall internal diameter unanimity, and this needle tubing can be with bar through the machine work manufacturing.

Described hat spring, comprise with elasticity high-conductive metal band and form the grid shape parallel strip that some two ends link to each other through die cut, be rolled into circle, the bonding jumper of circumferential array is inwardly pushed waisting in the middle part, form the structure of big centre, two ends little likeness in form imperial crown shape.

Described cylindroid helical-coil compression spring comprises the cylindroid helical-coil compression spring made from high resiliency metal material cold coiling.

Described needle shaft comprises with what the high-conductive metal material was made having a syringe needle, the structure of needle body step and backshank, this needle shaft can be with bar through the machine work manufacturing, also can with compression casting and (or) metal injection molded method manufacturing.

Description of drawings

Fig. 1 is the structural representation of existing spring-loaded pin.

Fig. 2 is the structural representation of the spring-loaded pin of the utility model band hat spring, and the hat spring is installed in the needle tubing bottom.

Fig. 3 is the structural representation of hat spring of the spring-loaded pin of the utility model band hat spring.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

High elasticity and high conductivity metal tape die cut is formed the grid shape parallel strip that some two ends link to each other, be rolled into circle, the bonding jumper of circumferential array is inwardly pushed waisting in the middle part, make the hat spring among Fig. 3.

Among Fig. 2, the inside pipe wall of needle tubing 1 is divided into two sections, and is less near one section tube wall 12 internal diameter of pipe bottom, bigger near one section tube wall internal diameter of the mouth of pipe.The height of tube wall 12 equates that with the height of hat spring 4 internal diameter of tube wall 12 equates with the maximum outside diameter of hat spring 4.The external diameter of spring 2 is less than the internal diameter of needle tubing.The needle body step 31 of needle shaft 3 and needle tubing internal diameter be with matched in clearance, and the diameter of backshank 32 is less than the internal diameter of spring 2 and be slightly larger than the minimum diameter at hat spring waisting position.To be preced with successively in the tube wall 12 that spring 4 is installed to needle tubing 1, spring 2 is packed in the needle tubing 1, backshank 32 ends of needle shaft 3 are inserted in the spring 2, the inside of needle shaft 3 being pushed to needle tubing 1 after needle body step 31 enters in the needle tubing 1 fully, with the mouth of pipe 11 of needle tubing 1 to bending riveting mouth.

When needle shaft 3 was depressed into working depth, backshank 32 inserted in the hat spring 4, and the bonding jumper of hat spring 4 all contacts with backshank 32.

Claims

One kind with the hat spring the spring-loaded pin, comprise needle tubing, cylindroid helical-coil compression spring, hat spring and needle shaft is characterized in that, the hat spring is installed in needle tubing inside, cylindroid helical-coil compression spring is installed in needle tubing inside, one end of needle shaft is installed in needle tubing inside, and cylindroid helical-coil compression spring one end is near the hat spring, and the other end withstands needle shaft.
2. the spring-loaded pin of band hat spring according to claim 1 is characterized in that described needle tubing comprises the front end perforate, the needle tubing of bottom lock.
3. the spring-loaded pin of band hat spring according to claim 1, it is characterized in that, described hat spring comprises with elasticity high-conductive metal band and forms the grid shape parallel strip that some two ends link to each other through die cut, be rolled into circle, the bonding jumper of circumferential array is inwardly pushed waisting in the middle part, form the structure of big centre, two ends little likeness in form imperial crown shape.
4. the spring-loaded pin of band according to claim 1 hat spring is characterized in that described needle shaft comprises syringe needle, and needle body step and backshank, the diameter of this backshank be less than the internal diameter of cylindroid helical-coil compression spring, and greater than the minimum diameter of hat spring.
5. the spring-loaded pin of band hat spring according to claim 1 is characterized in that described hat spring is installed in the bottom of needle tubing.
6. the spring-loaded pin of band hat spring according to claim 1 is characterized in that, the inside bending riveting of the mouth of pipe of described needle tubing mouth, and the needle body step of described needle shaft is positioned at this riveting mouth.
7. backshank according to claim 4 is characterized in that, when needle shaft was depressed into working depth, described backshank inserted in the hat spring, and every bonding jumper of hat spring all contacts with backshank.