A spring probe

Abstract

The utility model relates to probe technical field, specifically disclose a spring type probe, including needle tube, spring one, and needle axle, spring one fixed mounting is in needle tube, needle axle is arranged on needle tube sliding, spring one holds between needle tail and needle axle, the both sides of needle tube are provided with symmetrical horizontal bar, the horizontal bar bottom surface is set up and has the movable mouth, spring two is fixedly installed in movable mouth, the movable mouth is slidably arranged with movable block, spring two holds between horizontal bar and movable block, this spring type probe, can be in the process of needle axle vertical lifting, to needle axle both sides carry out the location support, guarantee needle axle vertical lifting's stability, ensure that the probe can maintain reliable and accurate electrical connection in all kinds of precision electronic test, connection scene, significantly reduce the test error and connection failure probability caused by needle axle instability, provide solid safeguard for the efficient production, detection and stable operation of electronic equipment.

Description

Technical Field

[0001] This invention belongs to the field of probe technology, and particularly relates to a spring-type probe. Background Technology

[0002] Spring-loaded probes are a common type of electronic testing and connection component, typically consisting of a probe shaft, a probe tube, and a spring. Through the elasticity of the spring, the probe shaft can maintain a certain pressure when in contact with the object being tested, thereby achieving a stable and reliable electrical connection and signal transmission. They are widely used in circuit testing and board-to-board connections in fields such as electronics manufacturing, communications, and semiconductors.

[0003] The existing spring-type probe structure is relatively simple. During the reciprocating lifting and lowering of the needle shaft, there is a lack of effective limiting support on both sides of the needle shaft. The needle shaft is easily affected by lateral force interference, which leads to instability such as deviation and shaking during the lifting and lowering process. This not only makes it difficult to maintain reliable and accurate electrical connections, but also significantly increases the probability of test errors and connection failures caused by needle shaft instability. This affects the production efficiency, testing accuracy and operational stability of electronic equipment. Therefore, improvements are needed. To this end, a spring-type probe is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a spring-loaded probe to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a spring-type probe, comprising a needle tube, a first spring, and a needle shaft. The first spring is fixedly installed inside the needle tube, and the needle shaft is slidably disposed on the needle tube. The first spring is pressed between the needle tail and the needle shaft. Symmetrical horizontal bars are provided on both sides of the needle tube. A movable opening is provided on the bottom surface of the horizontal bar. A second spring is fixedly installed inside the movable opening. A movable block is slidably disposed on the movable opening. The second spring is pressed between the horizontal bar and the movable block. A movable rod is rotatably disposed at the bottom of the movable block. Symmetrical mounting blocks are fixedly installed on both sides of the needle shaft. A frame is provided on the top surface of each mounting block. The bottom end of the movable rod is rotatably disposed on the frame.

[0006] As a further description of the above solution: by setting up the needle tube, spring one, needle shaft, crossbar, movable port, spring two, movable block, movable rod, and mounting block to work together, the needle shaft can be limited and supported on both sides during vertical lifting and lowering, ensuring the stability of the needle shaft during vertical lifting and lowering. This ensures that the probe can always maintain a reliable and accurate electrical connection in various precision electronic testing and connection scenarios, significantly reducing the probability of test errors and connection failures caused by needle shaft instability, and providing a solid guarantee for the efficient production, testing, and stable operation of electronic equipment.

[0007] Preferably, the top surface of the mounting block has an insertion port, the bottom surface of the frame has an insertion block, the size of the insertion block is adapted to the size of the insertion port, the two sides of the needle tube are fixedly installed on symmetrical connecting blocks, and the ends of the crossbars are respectively snapped onto the connecting blocks.

[0008] As a further description of the above solution: the setting of connecting blocks, sockets, and the cooperation between the sockets enables easy assembly and disassembly of the crossbar and the movable rod.

[0009] Preferably, damping is provided between the plug sockets.

[0010] As a further description of the above solution: damping is provided between the plug sockets to improve the stability of the plug within the sockets.

[0011] Preferably, a needle hub is fixed at the top of the needle tube.

[0012] As a further description of the above solution: a needle hub is fixed at the tip of the needle tube to facilitate connection of the device to the equipment.

[0013] Preferably, the size of the movable block is adapted to the size of the movable opening.

[0014] As a further description of the above solution: the size of the movable block is adapted to the size of the movable opening, which can improve the stability of the movable block sliding on the movable opening.

[0015] Preferably, the crossbar, movable opening, spring 2, movable block, movable rod, mounting block, and frame are provided with at least two symmetrical sets.

[0016] As a further description of the above solution: the crossbar, movable opening, spring 2, movable block, movable rod, mounting block, and frame are provided with at least two symmetrical sets, which can improve the stability of the vertical lifting of the needle shaft.

[0017] In summary, compared with the prior art, the beneficial effects of this utility model are as follows: by setting up the needle tube, spring one, needle shaft, crossbar, movable port, spring two, movable block, movable rod, and mounting block to cooperate, the needle shaft can be limited and supported on both sides during the vertical lifting and lowering process, ensuring the stability of the needle shaft's vertical lifting and lowering. This ensures that the probe can always maintain a reliable and accurate electrical connection in various precision electronic testing and connection scenarios, significantly reducing the probability of testing errors and connection failures caused by needle shaft instability, and providing a solid guarantee for the efficient production, testing, and stable operation of electronic equipment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a bottom view of the structure of this utility model;

[0020] Figure 3 This is a front view of the structural structure of this utility model;

[0021] Figure 4 This is a front cross-sectional view of the syringe of this utility model;

[0022] Figure 5 This is a front sectional view of the mounting block and frame structure of this utility model.

[0023] Legend:

[0024] 1. Needle tube; 2. Spring 1; 3. Needle shaft; 4. Crossbar; 5. Movable port; 6. Spring 2; 7. Movable block; 8. Movable rod; 9. Mounting block; 10. Frame; 11. Insertion port; 12. Insertion block; 13. Connecting block; 14. Needle seat. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 This utility model provides a technical solution:

[0027] A spring-type probe includes a needle tube 1, a first spring 2, and a needle shaft 3. The first spring 2 is fixedly installed inside the needle tube 1, and the needle shaft 3 is slidably mounted on the needle tube 1. The first spring 2 is pressed between the needle tail and the needle shaft 3. Symmetrical horizontal bars 4 are provided on both sides of the needle tube 1. A movable opening 5 is provided on the bottom surface of the horizontal bar 4. A second spring 6 is fixedly installed inside the movable opening 5. A movable block 7 is slidably mounted on the movable opening 5. The second spring 6 is pressed between the horizontal bar 4 and the movable block 7. A movable rod 8 is rotatably mounted on the bottom of the movable block 7. Symmetrical mounting blocks 9 are fixedly installed on both sides of the needle shaft 3. A frame 10 is provided on the top surface of each mounting block 9. The bottom end of the movable rod 8 is rotatably mounted on the frame 10.

[0028] In the spring-type probe, the needle tube 1 is the supporting structure of the entire probe, and a spring 2 is fixedly installed inside. The needle shaft 3 is slidably mounted on the needle tube 1. When the probe contacts the external device, the needle shaft 3 is subjected to upward pressure, which compresses the spring 2 and moves vertically upward on the needle tube 1 until a stable electrical connection is established with the external device. When the external pressure disappears, the spring 2 returns to its deformation and pushes the needle shaft 3 downward to return to the initial position. This allows for flexible adaptation to test points at different heights and ensures the reliability of the electrical connection.

[0029] During the process of the needle shaft 3 rising vertically under pressure, it drives the frame 10 to rise vertically. The frame 10 rises vertically and drives the movable rod 8 to deflect. The deflection of the movable rod 8 pushes the movable block 7 to compress the second spring 6 on the movable port 5 and move horizontally. When the external pressure disappears, the elastic restoring force of the second spring 6 and the first spring 2 pushes the movable block 7, the movable rod 8, and the needle shaft 3 to reset.

[0030] This spring-loaded probe can provide limiting support on both sides of the needle shaft 3 during its vertical lifting and lowering process, ensuring the stability of the needle shaft 3 during vertical lifting and lowering. This ensures that the probe can always maintain a reliable and accurate electrical connection in various precision electronic testing and connection scenarios, significantly reducing the probability of test errors and connection failures caused by the instability of the needle shaft 3, and providing a solid guarantee for the efficient production, testing and stable operation of electronic equipment.

[0031] The top surface of the mounting block 9 has an insertion port 11, and the bottom of the frame 10 has an insertion block 12. The size of the insertion block 12 is adapted to the size of the insertion port 11. The needle tube 1 is fixedly installed on both sides of the symmetrical connecting block 13, and the ends of the crossbar 4 are respectively snapped onto the connecting block 13.

[0032] The ends of the horizontal bar 4 are respectively snapped into the connecting blocks 13 fixed on both sides of the needle tube 1. The top surface of the mounting block 9 has an insertion port 11. The size of the insertion block 12 at the bottom of the frame 10 is adapted to the size of the insertion port 11. When it is necessary to install the horizontal bar 4 and the movable rod 8, the end of the horizontal bar 4 is snapped into the connecting block 13, and the insertion block 12 at the bottom of the frame 10 is inserted into the insertion port 11 on the top surface of the mounting block 9. When it is necessary to disassemble, the horizontal bar 4 is pulled out from the connecting block 13, and the insertion block 12 is pulled out from the insertion port 11. The simple disassembly and assembly structure makes it easy to operate when maintenance or replacement of parts is required.

[0033] Damping is provided between the plug 12 and the socket 11;

[0034] A damper is provided between the insert 12 and the socket 11. After the insert 12 is inserted into the socket 11, the damper will generate a certain friction force to prevent the insert 12 from easily coming out of the socket 11. This ensures the stability of the connection between the insert 12 and the socket 11 and avoids the separation of the frame 10 and the mounting block 9 due to the movement of the pin shaft 3, thereby ensuring the stability of the entire limiting support structure.

[0035] A needle hub 14 is fixed at the top of the needle tube 1;

[0036] The needle tube 1 is fixed with a needle seat 14 at the top, which facilitates the connection of the device to the equipment.

[0037] The dimensions of movable block 7 are compatible with the dimensions of movable opening 5;

[0038] The size of the movable block 7 is adapted to the size of the movable opening 5, so that the movable block 7 can slide tightly within the movable opening 5, which improves its sliding stability and thus ensures the stable support of the entire limiting support structure for the needle shaft 3.

[0039] The horizontal bar 4, the movable opening 5, the second spring 6, the movable block 7, the movable rod 8, the mounting block 9, and the frame 10 are provided with at least two sets of symmetrical components;

[0040] The crossbar 4, movable opening 5, spring 2 6, movable block 7, movable rod 8, mounting block 9, and frame 10 are provided with at least two symmetrical sets. During the vertical lifting and lowering of the needle shaft 3, multiple sets of structures can limit and support the needle shaft 3 from multiple directions. When the needle shaft 3 is subjected to lateral force, the two symmetrically set structures can play a role at the same time to balance the lateral force, reduce the offset and sway of the needle shaft 3, and improve the stability of the vertical lifting and lowering of the needle shaft 3.

[0041] Working principle:

[0042] In the spring-type probe, the needle tube 1 is the supporting structure of the entire probe, and a spring 2 is fixedly installed inside. The needle shaft 3 is slidably mounted on the needle tube 1. When the probe contacts the external device, the needle shaft 3 is subjected to upward pressure, which compresses the spring 2 and moves vertically upward on the needle tube 1 until a stable electrical connection is established with the external device. When the external pressure disappears, the spring 2 returns to its deformation and pushes the needle shaft 3 downward to return to the initial position. This allows for flexible adaptation to test points at different heights and ensures the reliability of the electrical connection.

[0043] During the process of the needle shaft 3 rising vertically under pressure, it drives the frame 10 to rise vertically. The frame 10 rises vertically and drives the movable rod 8 to deflect. The deflection of the movable rod 8 pushes the movable block 7 to compress the second spring 6 on the movable port 5 and move horizontally. When the external pressure disappears, the elastic restoring force of the second spring 6 and the first spring 2 pushes the movable block 7, the movable rod 8, and the needle shaft 3 to reset.

[0044] This spring-loaded probe can provide limiting support on both sides of the needle shaft 3 during the vertical lifting and lowering process, ensuring the stability of the vertical lifting and lowering of the needle shaft 3. This ensures that the probe can always maintain a reliable and accurate electrical connection in various precision electronic testing and connection scenarios, significantly reducing the probability of test errors and connection failures caused by the instability of the needle shaft 3, and providing a solid guarantee for the efficient production, testing and stable operation of electronic equipment.

[0045] in,

[0046] The ends of the horizontal bar 4 are respectively snapped into the connecting blocks 13 fixed on both sides of the needle tube 1. The top surface of the mounting block 9 has an insertion port 11. The size of the insertion block 12 at the bottom of the frame 10 is adapted to the size of the insertion port 11. When it is necessary to install the horizontal bar 4 and the movable rod 8, the end of the horizontal bar 4 is snapped into the connecting block 13, and the insertion block 12 at the bottom of the frame 10 is inserted into the insertion port 11 on the top surface of the mounting block 9. When it is necessary to disassemble, the horizontal bar 4 is pulled out from the connecting block 13 and the insertion block 12 is pulled out from the insertion port 11. The simple disassembly and assembly structure makes it easy to operate when maintenance or replacement of parts is required.

[0047] Damping is provided between the insert 12 and the socket 11. After the insert 12 is inserted into the socket 11, the damping will generate a certain friction force to prevent the insert 12 from easily coming out of the socket 11, thus ensuring the stability of the connection between the insert 12 and the socket 11 and avoiding the separation of the frame 10 and the mounting block 9 due to the movement of the pin shaft 3, thereby ensuring the stability of the entire limiting support structure.

[0048] The needle tube 1 is fixed to the top of the needle seat 1, which facilitates the connection of the device to the equipment;

[0049] The size of the movable block 7 is adapted to the size of the movable opening 5, so that the movable block 7 can slide tightly within the movable opening 5, which improves its sliding stability and thus ensures the stable support of the entire limiting support structure for the needle shaft 3.

[0050] The crossbar 4, movable opening 5, spring 2 6, movable block 7, movable rod 8, mounting block 9, and frame 10 are provided with at least two symmetrical sets. During the vertical lifting and lowering of the needle shaft 3, multiple sets of structures can limit and support the needle shaft 3 from multiple directions. When the needle shaft 3 is subjected to lateral force, the two symmetrically set structures can play a role at the same time to balance the lateral force, reduce the offset and sway of the needle shaft 3, and improve the stability of the vertical lifting and lowering of the needle shaft 3.

[0051] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A spring-loaded probe, comprising a needle tube (1), a spring (2), and a needle shaft (3), characterized in that, The first spring (2) is fixedly installed inside the needle tube (1), the needle shaft (3) is slidably installed on the needle tube (1), the first spring (2) is pressed between the needle tail and the needle shaft (3), the needle tube (1) is provided with symmetrical horizontal bars (4) on both sides, the bottom surface of the horizontal bar (4) is provided with a movable opening (5), the second spring (6) is fixedly installed in the movable opening (5), the movable block (7) is slidably installed on the movable opening (5), the second spring (6) is pressed between the horizontal bar (4) and the movable block (7), the bottom of the movable block (7) is rotatably provided with a movable rod (8), the needle shaft (3) is fixedly installed with symmetrical mounting blocks (9) on both sides, the top surface of the mounting blocks (9) is provided with a frame (10), the bottom end of the movable rod (8) is rotatably installed on the frame (10).

2. A spring-loaded probe according to claim 1, characterized in that, The mounting block (9) has an insertion port (11) on its top surface, and the frame (10) has an insertion block (12) on its bottom surface. The size of the insertion block (12) is adapted to the size of the insertion port (11). The needle tube (1) is fixedly installed on the two sides of the symmetrical connecting block (13), and the ends of the crossbar (4) are respectively snapped onto the connecting block (13).

3. A spring-loaded probe according to claim 2, characterized in that, Damping is provided between the insertion ports (11) of the plug (12).

4. A spring-loaded probe according to claim 1, characterized in that, The needle tube (1) is fixed with a needle hub (14) at its top end.

5. A spring-loaded probe according to claim 1, characterized in that, The size of the movable block (7) is adapted to the size of the movable opening (5).

6. A spring-loaded probe according to claim 1, characterized in that, The horizontal bar (4), movable opening (5), spring 2 (6), movable block (7), movable rod (8), mounting block (9), and frame (10) are provided with at least two symmetrical sets.

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