CN206057387U - A kind of testing needle - Google Patents

Abstract

The utility model discloses a kind of testing needle, comprising probe (1) and needle tubing (2), it is characterised in that：The probe (1) includes integrally formed syringe needle (101) and spring (102), the probe (1) is assemblied in the needle tubing (2), and the syringe needle (101) stretches out the needle tubing (2).This syringe needle (101) integrally formed testing needle in production with spring (102), its resistance stability are good, can avoid open circuit.

Description

A kind of testing needle

Technical field

This utility model belongs to detection test field, more particularly to a kind of test for detecting components and parts electric property Pin.

Background technology

What conventional measurement test point was typically assembled by syringe needle, spring and needle tubing, packaged type has two ends Bao Kou, two end seals Cheat, two ends get ready and one end Bao Kou (envelope hole) end seal cheats (getting ready) etc..This assembled testing needle by needle with Detected element or measured position contact are tested, and during test, one part of current increases can its resistance by spring, easily occur Open circuit, so as to cause test erroneous judgement to cause economic loss, increases enterprise's use cost.

The content of the invention

The purpose of this utility model is to provide a kind of testing needle, exists when being powered to the testing needle for solving common assembling Impedance increases suddenly, the phenomenon that open circuit easily occurs.

In order to achieve the above object, this utility model is employed the following technical solutions and is achieved.

A kind of testing needle, comprising probe and needle tubing, it is characterised in that：The probe includes integrally formed syringe needle and bullet Spring, the probe are assemblied in the needle tubing, and the syringe needle stretches out the needle tubing.

Such scheme, this new testing needle of employing, its syringe needle and spring are one, and this integral structure is different In conventional syringe needle and spring assembling formula structure, comparatively its resistance be highly stable, open circuit can be avoided to send out in test It is raw.

Used as the further improvement of technical solutions of the utility model, the quantity of the syringe needle is two, respectively positioned at spring Two ends, the syringe needle is shaped as hemispherical or taper.

Above-mentioned improvement project, selection is a kind of testing needle that both ends of the spring is designed with syringe needle, the shape preferably half of syringe needle Spherical or taper.

As the further improvement of technical solutions of the utility model, back-up ring in the middle part of the spring, is provided with, the needle tubing Multiple depressed parts are provided with lateral wall, the depressed part is distributed in the both sides of the back-up ring.

Above-mentioned improvement project, the principle that packaged type is got ready according to two ends and design, but beat different from traditional two ends Point mode, specifically, on the one hand by when the improvement project integrated molding spring is with syringe needle, portion is installed with the spring Back-up ring；After another aspect testing needle is arranged on needle tubing, the multiple concave points of punching from outside to inside on needle tubing, these concave points are located at back-up ring Both sides, it can be ensured that probe card is not slid in needle tubing.

Used as the further improvement of technical solutions of the utility model, the concave point circumferential array is on the needle tubing and corresponding It is distributed in the both sides of the position of the back-up ring.

Above-mentioned improvement project makes probe to be more stably mounted at needle tubing in along the circumferentially uniform concave point of needle tubing by two rows.

The technical solution of the utility model compared with existing like product on market, on the one hand by syringe needle and spring It is integrally formed in production, the resistance of this testing needle is more stable, the phenomenon that open circuit occurs can be avoided；Another aspect encapsulation side The formula mode that both sides are got ready in the middle part of pipe shaft, along the uniform two rows concave point of the circumference of needle tubing, two row's concave points are located in spring respectively The back-up ring both sides in portion, can be such that probe is more stably mounted in needle tubing, significantly increase its service life.

Description of the drawings

Fig. 1：A kind of structure diagram of testing needle of the present utility model；

Fig. 2：The structure diagram of Fig. 1 middle probes.

In figure：1st, probe, 101, syringe needle, 102, spring, 103, back-up ring；2nd, needle tubing.

Specific embodiment

The technical solution of the utility model is described in further detail below in conjunction with description of the drawings and specific embodiment.

With reference to Fig. 2, the structure diagram of probe 1 used by technical solutions of the utility model, in figure this probe 1 comprising one into The syringe needle 101 and spring 102 of type, the quantity of syringe needle 101 is two two ends for being located at spring 102 respectively, for convenience of test syringe needle The 101 preferred hemispherical of shape or taper.

With reference to Fig. 1, a kind of structure diagram of testing needle of the present utility model, comprising probe 1 and needle tubing 2 in Fig. 1, probe 1 is assemblied in needle tubing 2, and the two-port of two syringe needles 101 of probe 1 respectively from needle tubing 2 is stretched out.

Specifically its assembling mode, the middle part of spring 101 are provided with back-up ring 103, and the punching from outside to inside of needle tubing 2 has two rows recessed Point, often row's concave point is circumferential uniform along needle tubing, and one ranks in the side of back-up ring 103, another to rank in the opposite side of back-up ring 103, leads to Crossing two rows can be such that probe 1 is more stably mounted in needle tubing 2 along the circumferentially uniform concave point of needle tubing.

The technical solution of the utility model compared with existing like product on market, on the one hand by syringe needle 101 with Spring 102 is integrally formed in production, and the resistance of this testing needle is more stable, can avoid the phenomenon that open circuit occurs；The opposing party The face packaged type mode that both sides are got ready in the middle part of pipe shaft, along the uniform two rows concave point of the circumference of needle tubing 2, two row's concave points difference position 103 both sides of back-up ring in the middle part of spring 102, can be such that probe 101 is more stably mounted in needle tubing 2, and significantly increasing which makes Use the life-span.

Obviously, those skilled in the art can carry out various changes and modification without deviating from this practicality to this utility model New spirit and scope.So, if it is of the present utility model these change and modification belong to this utility model claim and Within the scope of its equivalent technologies, then this utility model also comprising these changes and deforms.

Claims (6)

1. a kind of testing needle, comprising probe (1) and needle tubing (2), it is characterised in that：The probe (1) is comprising integrally formed pin Head (101) and spring (102), the probe (1) are assemblied in the needle tubing (2), and the syringe needle (101) stretches out the needle tubing (2)。

2. testing needle according to claim 1, it is characterised in that：The quantity of the syringe needle (101) is two, is located at respectively The two ends of spring (102).

3. testing needle according to claim 2, it is characterised in that：The syringe needle (101) is shaped as hemispherical or cone Shape.

4. testing needle according to claim 3, it is characterised in that：Back-up ring (103) is provided with the middle part of the spring (102).

5. testing needle according to claim 4, it is characterised in that：It is provided with the lateral wall of the needle tubing (2) multiple recessed Sunken portion, the depressed part are distributed in the both sides of the back-up ring (103).

6. testing needle according to claim 5, it is characterised in that：The depressed part be concave point, the concave point circumferential array The both sides of the position of the back-up ring (103) are distributed on the needle tubing (2) and correspondingly.