CN210742350U

CN210742350U - Switch needle card device

Info

Publication number: CN210742350U
Application number: CN201921636895.2U
Authority: CN
Inventors: 张磊; 王锡湖
Original assignee: Wuxi Proka Technology Co Ltd
Current assignee: Wuxi Proka Technology Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-06-12
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a switch needle card device, including test fixture, tool inner panel and switch needle body, be provided with the needle cassette in the test fixture, the test fixture bottom is provided with the tool inner panel, and is provided with on the tool inner panel and receive the port, and receives the port upper end and be connected with the brass pipe to the brass pipe outside is provided with the signal lamp, the brass pipe upper end is connected with the switch needle body, and is provided with output port on the switch needle body to output port upper end is connected with components and parts, insulating stay is installed to components and parts upper end, and the insulating stay upper end is connected with the compression bar. This switch needle card device, the switch needle body still can have the location installation effect when can fixing in test fixture, simple structure, and easy dismounting can adjust mounting height through the screw thread to can accurate adjustment switch point position, thereby improve the location precision of switch needle body.

Description

Switch needle card device

Technical Field

The utility model relates to a switch needle card technical field specifically is a switch needle card device.

Background

The switch card is suitable for a very diverse number of applications, so that it can be used both for the presence check of components and as a switch for detecting the open and closed states and as a signal transmission device for in-process control, and can also be used with other test probes and for the position determination of contact sections in the plug housing.

At present, in most cases, the switch needle is a so-called normally open contact and is normally open, which means that under the condition that the needle head is in operation, a circuit is closed, only specified rated current can be transmitted in the closed state, the mounting structure is easy to incline, the switch needle is separated from the needle sleeve, the test work is greatly influenced, and therefore, a switch needle card device is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a switch needle card device to propose among the above-mentioned background art that mounting structure appears the slope easily, lead to the switch needle to deviate from the needle cover, very big influence test work's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a switch needle card device, includes test fixture, tool inner panel and switch needle body, be provided with the needle cassette in the test fixture, the test fixture bottom is provided with the tool inner panel, and is provided with the receiving port on the tool inner panel, and receives the port upper end and be connected with the brass pipe to the brass pipe outside is provided with the signal lamp, the brass pipe upper end is connected with the switch needle body, and is provided with output port on the switch needle body to output port upper end is connected with components and parts, insulating stay is installed to the components and parts upper end, and insulating stay upper end is connected with the compression bar.

Preferably, a fixing plate is arranged in the test fixture, a mounting hole is formed in the surface of the fixing plate, an internal thread is arranged in the mounting hole, and an external thread is arranged on the outer side of the switch needle body.

Preferably, a needle sleeve is arranged on the outer side of the upper end of the switch needle body, a needle tube is arranged on the outer side of the switch needle body, the needle sleeve and the needle tube are connected in a clamping mode, and a rubber pad is arranged at the lower end of the needle sleeve.

Preferably, the component is electrically connected with the switch pin body through an output port, and the receiving port is electrically connected with the switch pin body through a brass tube.

Preferably, a needle shaft is arranged in the needle tube, a return spring is arranged on the outer side of the needle shaft, a needle head is arranged at the lower end of the needle tube, and the needle head is movably connected with the needle shaft.

Compared with the prior art, the beneficial effects of the utility model are that: the switch pin card device is provided with a pin card,

1. the external thread on the outer side of the switch needle body is connected with the internal thread in the mounting hole, so that the switch needle body can be fixed in the test fixture and also has a positioning and mounting effect, the structure is simple, the assembly and disassembly are convenient, the mounting height can be adjusted through the thread, and the position of the switch point can be accurately adjusted, so that the positioning accuracy of the switch needle body is improved;

2. the needle shaft is extruded by the components and parts, the reset spring is compressed to move axially, the needle shaft is pressed to a certain depth and then is contacted with the needle head, the outer surface of the needle shaft is contacted with the inner surface of the needle tube, an electric signal is transmitted to the needle tube from the needle shaft, and the needle shaft is separated from the needle head through the reset spring, so that the signal transmission can be carried out by only one step of opening and closing the needle, and the stability of the electric signal transmission is ensured;

3. the switch needle has the advantages that the limiting effect can be achieved by adding the needle sleeve on the switch needle body, the buffer protection effect can be achieved in the testing work process by adding the rubber pad at the lower end of the needle sleeve, and the switch needle body is effectively prevented from inclining.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the front view structure of the switch pin body of the present invention;

fig. 3 is a schematic view of the three-dimensional structure of the fixing plate of the present invention.

In the figure: 1. testing the jig; 2. a needle holder; 3. a fixing plate; 4. a jig inner plate; 5. a receive port; 6. a switch pin body; 7. a hold down bar; 8. an insulating stay; 9. a component; 10. an output port; 11. Brass tube; 12. a signal lamp; 13. a needle sleeve; 14. a return spring; 15. a needle tube; 16. an external thread; 17. a needle shaft; 18. a needle head; 19. mounting holes; 20. an internal thread.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a switch needle card device, including test fixture 1, tool inner panel 4 and switch needle body 6, be provided with needle cassette 2 in the

test fixture

1, 1 bottom of test fixture is provided with tool inner panel 4, and tool inner panel 4 upper end is provided with receives port 5, and receive port 5 upper end and be connected with brass pipe 11, and the brass pipe 11 outside is provided with signal lamp 12, brass pipe 11 upper end is connected with switch needle body 6, and switch needle body 6 upper end is provided with output port 10, and output port 10 upper end is connected with components and parts 9, insulating stay 8 is installed to components and parts 9 upper end, and the insulating stay 8 upper end is connected with compressing tightly pole 7.

The testing jig 1 is internally provided with the fixing plate 3, the surface of the fixing plate 3 is provided with the mounting hole 19, the mounting hole 19 is internally provided with the internal thread 20, the outer side of the switch needle body 6 is provided with the external thread 16, and the external thread 16 on the outer side of the switch needle body 6 is connected with the internal thread 20 in the mounting hole 19, so that the switch needle body 6 can be fixed in the testing jig 1 and also has the positioning and mounting effects, the structure is simple, and the assembly and disassembly are convenient;

a needle sleeve 13 is arranged on the outer side of the upper end of the switch needle body 6, a needle tube 15 is arranged on the outer side of the switch needle body 6, the needle sleeve 13 is connected with the needle tube 15 in a clamping manner, a rubber pad is arranged at the lower end of the needle sleeve 13, the needle sleeve 13 plays a limiting role in the process of installing the switch needle body 6, the rubber pad plays a role in buffering and protecting in the working process, and the switch needle body 6 is effectively prevented from being inclined;

the component 9 is electrically connected with the switch pin body 6 through the output port 10, the receiving port 5 is electrically connected with the switch pin body 6 through the brass tube 11, the component 9 performs signal transmission with the receiving port 5 through the switch pin body 6, and the connection and separation can be realized through the self structure of the switch pin body 6, so that the steps are simple, and great convenience is brought to the test work;

a needle shaft 17 is arranged in the needle tube 15, a return spring 14 is arranged on the outer side of the needle shaft 17, a needle head 18 is arranged at the lower end of the needle tube 15, the needle head 18 is movably connected with the needle shaft 17, the needle shaft 17 is inserted into the needle tube 15, the return spring 14 is compressed to move axially when the needle shaft 17 is extruded by the component 9, the needle shaft 17 is pressed to a certain depth and then contacts with the needle head 18, the outer surface of the needle shaft 17 contacts with the inner surface of the needle tube 15, an electric signal is transmitted to the needle tube 15 from the needle shaft 17, and the needle shaft 17 is separated from the needle head 18 through the return spring.

The working principle is as follows: when the switch needle clamp device is used, firstly, a switch needle body 6 is installed in a test fixture 1, a plurality of mounting holes 19 are formed in a fixing plate 3, a plurality of switch needle bodies 6 can be installed on the fixing plate 3 for test work, a needle tube 15 of the switch needle body 6 corresponds to the mounting holes 19 in the fixing plate 3, an external thread 16 on the outer side of the needle tube 15 is connected with an internal thread 20 in the mounting hole 19 through a needle clamp seat 2 for fixation, a needle sleeve 13 plays a limiting role in fastening work, needle heads 18 are ensured to be positioned at the same horizontal line, a rubber mat plays a role in buffer protection in the work process, the switch needle body 6 is effectively prevented from inclining, a component 9 and an output port 10 are of an integrated structure, the component 9 is installed at the upper end of the switch needle body 6, a pressing rod 7 controls the component 9 to vertically slide through an insulating supporting bar 8, and a needle shaft 17 is inserted, when needle shaft 17 receives the extrusion of components and parts 9, compression reset spring 14 axial displacement, needle shaft 17 pushes down certain degree of depth after and contacts with syringe needle 18, the surface of needle shaft 17 and the internal surface contact of needle tubing 15, the signal of telecommunication is transmitted to needle tubing 15 from needle shaft 17, final needle tubing 15 transmits the receiving port 5 of tool inner panel 4 upper end through brass pipe 11, signal lamp 12 will be according to the luminance display transmission state in the in-process of transmission, needle shaft 17 passes through reset spring 14 and syringe needle 18 separation, whole practicality has been increased.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a switch needle card device, includes test fixture (1), tool inner panel (4) and switch needle body (6), its characterized in that: be provided with needle cassette (2) in test fixture (1), test fixture (1) bottom is provided with tool inner panel (4), and is provided with receiving port (5) on tool inner panel (4), and receives port (5) upper end and be connected with brass pipe (11) to the brass pipe (11) outside is provided with signal lamp (12), brass pipe (11) upper end is connected with switch needle body (6), and is provided with output port (10) on switch needle body (6), and is connected with components and parts (9) on output port (10), insulating stay (8) are installed to components and parts (9) upper end, and insulating stay (8) upper end is connected with compressing tightly pole (7).

2. The switch card device of claim 1, wherein: the testing jig is characterized in that a fixing plate (3) is arranged in the testing jig (1), a mounting hole (19) is formed in the surface of the fixing plate (3), an internal thread (20) is arranged in the mounting hole (19), and an external thread (16) is arranged on the outer side of the switch needle body (6).

3. The switch card device of claim 1, wherein: the switch needle is characterized in that a needle sleeve (13) is arranged on the outer side of the upper end of the switch needle body (6), a needle tube (15) is arranged on the outer side of the switch needle body (6), the needle sleeve (13) is connected with the needle tube (15) in a clamping mode, and a rubber pad is arranged at the lower end of the needle sleeve (13).

4. The switch card device of claim 1, wherein: the component (9) is electrically connected with the switch pin body (6) through the output port (10), and the receiving port (5) is electrically connected with the switch pin body (6) through a brass tube (11).

5. A switch card device according to claim 3, characterized in that: a needle shaft (17) is arranged in the needle tube (15), a return spring (14) is arranged on the outer side of the needle shaft (17), a needle head (18) is arranged at the lower end of the needle tube (15), and the needle head (18) is movably connected with the needle shaft (17).