Test probe

Abstract

The utility model provides a test probe which comprises a needle tube assembly, the needle tube assembly comprises a tube body, the outer surface of the tube body is fixedly connected with a rubber sleeve, a tail connecting assembly is arranged in the tube body, a head connecting assembly is arranged at the top of the tube body, a fixing assembly is arranged in the head connecting assembly, and a push-out assembly is arranged in the top of the tube body. The telescopic spring is movably installed in the tube body, the bottom of the telescopic spring is fixedly connected with the needle tail, the top of the needle tail is movably embedded in the tube body, the inner surface of the bottom of the tube body is in threaded connection with the fixing cap, and the outer surface of the needle tail is movably embedded in the fixing cap. According to the test probe provided by the utility model, the fixing cap is in threaded connection with the bottom of the needle tube assembly, and the fixing assembly can be separated from the needle tube assembly by extruding the two push-out assemblies inwards, so that the tail connecting assembly and the head connecting assembly can be conveniently detached from the inside and the surface of the tube body, and the whole body does not need to be replaced; and the maintenance cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of test probe design, in particular to a test probe. Background Art

[0002] The types of test probes include PCB probes, ICT functional test probes (automobile wire harness test probes, battery needles, current and voltage needles, switch needles, capacitor polarity needles, high-frequency needles), BGA test probes, etc.

[0003] A test probe generally consists of a needle tube, a probe head and a spring. One end of the probe and the spring are installed inside the needle tube. When the probe head and the spring are damaged, it is impossible to disassemble the needle tube, take out the needle tip and the spring for replacement, so the whole probe needs to be replaced, increasing the cost.

[0004] Therefore, it is necessary to provide a test probe to solve the above technical problems. Summary of the Utility Model

[0005] The utility model provides a test probe, which solves the problem that the existing probe cannot be disassembled and replaced.

[0006] To solve the above technical problems, a test probe provided by the utility model includes: a needle tube assembly, the needle tube assembly includes a tube body, an outer surface of the tube body is fixedly connected with a rubber sleeve, a tail connection assembly is arranged inside the tube body, and a head connection assembly is arranged at a top of the tube body;

[0007] A fixing component, the fixing component is arranged inside the head connection component;

[0008] A pushing component, the pushing component is arranged inside a top of the tube body.

[0009] Preferably, the tail connection assembly includes a telescopic spring, the telescopic spring is movably installed inside the tube body, and a bottom of the telescopic spring is fixedly connected with a needle tail.

[0010] Preferably, a top of the needle tail is movably embedded inside the tube body, an inner surface of a bottom of the tube body is threadedly connected with a fixing cap, and an outer surface of the needle tail is movably embedded inside the fixing cap.

[0011] Preferably, the head connection assembly includes a needle tip, fixedly installed at the top of the tube body, a bottom of the needle tip is fixedly connected with an embedded block, and the embedded block is movably embedded inside a top of the tube body.

[0012] Preferably, the fixing component includes a clamping block, one end of the clamping block is movably embedded inside the embedding block, one end of the clamping block is fixedly connected with a fixing spring, the other end of the clamping block is movably connected with a fixing hole, and the fixing hole is opened on the inner surface of the top of the pipe body.

[0013] Preferably, the pushing component includes a push rod, the push rod is movably embedded inside the left and right ends of the top of the pipe body, a return spring is movably installed on the outer surface of the push rod, and the bottom of the push rod is fixedly connected with a pressing rod.

[0014] Compared with the related art, a test probe provided by the present utility model has the following beneficial effects:

[0015] The present utility model provides a test probe. By screwing the fixing cap at the bottom of the needle tube assembly and inwardly pressing the two pushing components, the fixing component can be separated from the needle tube assembly, so as to facilitate the disassembly of the tail connecting component and the head connecting component from the inside and the surface of the pipe body, without the need for overall replacement, saving the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a preferred embodiment of a test probe provided by the present utility model;

[0017] Figure 2 is Figure 1 the front sectional structural schematic diagram shown;

[0018] Figure 3 is Figure 2 the enlarged schematic diagram of part A shown;

[0019] Figure 4 is Figure 2 the enlarged schematic diagram of part B shown.

[0020] Reference numerals in the figure: 1. Needle tube assembly, 11. Pipe body, 12. Rubber sleeve,

[0021] 2. Tail connecting component, 21. Telescopic spring, 22. Needle tail, 23. Fixing cap,

[0022] 3. Head connecting component, 31. Needle head, 32. Embedding block,

[0023] 4. Fixing component, 41. Clamping block, 42. Fixing spring, 43. Fixing hole,

[0024] 5. Pushing component, 51. Push rod, 52. Return spring, 53. Pressing rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present utility model will be further described below with reference to the drawings and embodiments.

[0026] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , where Figure 1 is a schematic structural diagram of a preferred embodiment of a test probe provided by the present utility model; Figure 2 is Figure 1 the front sectional structural diagram shown in Figure 3 is Figure 2 the enlarged schematic diagram of part A shown in Figure 4 is Figure 2 the enlarged schematic diagram of part B shown in

[0027] A fixing component 4, which is arranged inside the head connecting component 3;

[0028] A pushing component 5, which is arranged inside the top of the tube body 11.

[0029] The rubber sleeve 12 is made of rubber insulating material, fixedly sleeved on the outer surface of the tube body 11, and has many round holes on the surface, so as to facilitate the staff to take it while effectively preventing the impurities and sweat stains on the hand from corroding the surface of the tube body 11. The tail connecting component 2 and the head connecting component 3 are respectively connected to the upper and lower surfaces of the substrate to complete the test. The function of the fixing component 4 is to fix the head connecting component 3 on the surface of the tube body 11, and the function of the pushing component 5 is to complete the disassembly of the head connecting component 3 by extrusion.

[0030] The tail connecting component 2 includes a telescopic spring 21, which is movably installed inside the tube body 11, and the bottom of the telescopic spring 21 is fixedly connected to a needle tail 22.

[0031] The inside of the fixing cap 23 is provided with an opening, and the size of the opening is just large enough to allow the top of the needle tail 22 to pass through and be embedded inside the tube body 11. The top of the needle tail 22 is fixedly connected with a limiting block, and the size of the limiting block is just right to fit the inner surface of the tube body 11. The outer surface of the fixing cap 23 and the inner surface of the bottom of the tube body 11 are provided with the same thread, so that when the fixing cap 23 is threaded inside the bottom of the tube body 11, the fixing cap 23 can limit the limiting block to prevent the needle tail 22 from slipping out.

[0032] The top of the needle tail 22 is movably embedded inside the tube body 11, the inner surface of the bottom of the tube body 11 is threadedly connected with a fixing cap 23, and the outer surface of the needle tail 22 is movably embedded inside the fixing cap 23.

[0033] When the telescopic spring 21 and the needle tail 22 need to be installed, the telescopic spring 21 is first inserted into the interior of the tube body 11 through the bottom of the tube body 11, and then the top of the needle tail 22 is embedded into the interior of the tube body 11 through the bottom of the tube body 11. Finally, the fixing cap 23 is sleeved on the outer surface of the needle tail 22, and it is embedded into the interior of the bottom of the tube body 11 and the fixing cap 23 is rotated to threadably fix it with the threaded surface of the bottom of the tube body 11. Due to the restriction of the fixing cap 23, the needle tail 22 can slide up and down but cannot be separated from the interior of the tube body 11.

[0034] The head connection assembly 3 includes a needle 31 , which is fixedly installed on the top of the tube body 11 . The bottom of the needle 31 is fixedly connected with an embedding block 32 , and the embedding block 32 is movably embedded inside the top of the tube body 11 .

[0035] The embedding block 32 is just large enough to be embedded in the top of the tube body 11 . The embedding block 32 can be embedded in the top of the tube body 11 , thereby achieving connection between the tube body 11 and the head connecting assembly 3 .

[0036] The fixing assembly 4 includes a clamping block 41, one end of which is movably embedded in the interior of the embedding block 32, one end of the clamping block 41 is fixedly connected to a fixing spring 42, and the other end of the clamping block 41 is movably connected to a fixing hole 43, and the fixing hole 43 is opened on the inner surface of the top of the tube body 11.

[0037] A groove is provided inside the embedding block 32, and there are two clamping blocks 41 and two fixing holes 43. One end of the two clamping blocks 41 is movably embedded in the left and right ends of the groove respectively, and the two ends of the fixing spring 42 are fixedly connected to one end of the two clamping blocks 41 embedded in the groove. The two fixing holes 43 are provided on the inner surfaces of the left and right ends of the top of the needle tube assembly 1. When the embedding block 32 is completely embedded in the top of the tube body 11, the two clamping blocks 41 just coincide with the two fixing holes 43, and the elastic force of the fixing spring 42 pushes the two clamping blocks 41 to slide into the inside of the two fixing holes 43, thereby realizing the connection and fixation between the head connecting assembly 3 and the tube body 11.

[0038] The ejection assembly 5 includes a push rod 51 , which is movably embedded in the left and right ends of the top of the tube body 11 , a return spring 52 is movably installed on the outer surface of the push rod 51 , and an extrusion rod 53 is fixedly connected to the bottom of the push rod 51 .

[0039] A circular block slightly larger in diameter than the tube body 11 is fixedly connected to the top of the tube body 11. The number of the pushing components 5 is two. A hole is formed inside each of the left and right ends of the circular block, and the two holes are respectively connected to the two fixing holes 43. The two push rods 51 are movably embedded inside the two holes. The two return springs 52 are respectively movably sleeved on the outer surfaces of the two push rods 51. The elastic force of the return springs 52 enables the two push rods 51 to be completely embedded inside the two holes without contacting the clamping blocks 41. The bottoms of the two extrusion rods 53 are respectively movably installed on the outer surface of the bottom of the circular block. When it is necessary to disassemble the head connection component 3 from the tube body 11, only need to inwardly extrude the two extrusion rods 53, and the two push rods 51 will push the two clamping blocks 41 to slide out of the inside of the fixing holes 43. The embedded block 32 loses the fixing force, and finally pulling the needle head 31 can completely separate them.

[0040] The working principle of a test probe provided by the present utility model is as follows:

[0041] When it is necessary to replace the telescopic spring 21 and the needle tail 22, first rotate the fixing cap 23 to thread it out of the inside of the bottom of the tube body 11. The bottom of the tube body 11 is opened, and then the telescopic spring 21 and the fixing cap 23 are taken out for replacement. When it is necessary to replace the head connection component 3, simultaneously inwardly extrude the two extrusion rods 53. While the two extrusion rods 53 drive the two push rods 51 to move relatively, the return springs 52 are compressed, and the two push rods 51 respectively push the two clamping blocks 41 to slide inwardly out of the inside of the fixing holes 43. When the two clamping blocks 41 are completely separated.

[0042] Compared with the related art, a test probe provided by the present utility model has the following beneficial effects:

[0043] The present utility model provides a test probe. By threadedly connecting the fixing cap 23 to the bottom of the needle tube assembly 1 and inwardly extruding the two pushing components 5, the separation of the fixing component 4 from the needle tube assembly 1 can be realized, so as to facilitate the disassembly of the tail connection component 2 and the head connection component 3 from the inside and the surface of the tube body 11, without the need for overall replacement, saving the maintenance cost.

[0044] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A test probe, characterized in that: include: A needle tube assembly, the needle tube assembly comprising a tube body, a rubber sleeve is fixedly connected to the outer surface of the tube body, a tail connection assembly is arranged inside the tube body, and a head connection assembly is arranged on the top of the tube body; A fixing component, the fixing component is arranged inside the head connecting component; The ejection assembly is arranged inside the top of the tube body.

2. A test probe according to claim 1, characterized in that: The tail connection assembly comprises a telescopic spring, which is movably mounted inside the tube body, and a needle tail is fixedly connected to the bottom of the telescopic spring.

3. A test probe according to claim 2, characterized in that: The top of the needle tail is movably embedded in the interior of the tube body, the inner surface of the bottom of the tube body is threadedly connected with a fixing cap, and the outer surface of the needle tail is movably embedded in the interior of the fixing cap.

4. A test probe according to claim 1, characterized in that: The head connection assembly comprises a needle, which is fixedly mounted on the top of the tube body; the bottom of the needle is fixedly connected with an embedding block, and the embedding block is movably embedded in the interior of the top of the tube body.

5. A test probe according to claim 4, characterized in that: The fixing assembly includes a clamping block, one end of which is movably embedded in the interior of the embedding block, one end of which is fixedly connected to a fixing spring, and the other end of which is movably connected to a fixing hole, which is opened on the inner surface of the top of the tube body.

6. A test probe according to claim 1, characterized in that: The ejection assembly comprises a push rod, which is movably embedded in the left and right ends of the top of the tube body, a return spring is movably installed on the outer surface of the push rod, and an extrusion rod is fixedly connected to the bottom of the push rod.

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