Adjustable test probe

Abstract

The utility model discloses an adjustable test probe, which relates to the technical field of adjustable test probes and comprises a base, the surface of the base is fixedly connected with a connecting frame, one end of the connecting frame is fixedly connected with a clamping mechanism, and a test probe is mounted in the clamping mechanism. The pressing cap is screwed firstly, the ejector block in the pressing cap leaves the slope on the locking ring, the two half locking rings cannot be pressed on the external pipe and the telescopic rod any more, the telescopic rod can be pulled, the total length of the external pipe and the telescopic rod can be adjusted, after adjustment is completed, the pressing cap is screwed, and under the action of the external threads, the pressing cap can be screwed out of the external pipe. The inner side of a top block on the pressing cap abuts against a slope of the locking ring, the two halves of the locking ring shrink inwards, the telescopic rod is squeezed and fixed, the locking ring is pressed and fixed to the external pipe, the external pipe and the telescopic rod are fixedly connected, and the test probe is convenient to adjust and use, not prone to damage and long in service life.

Description

Technical Field

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

[0002] Test probes are electronic components used to test PCBAs during electronic testing, primarily for signal continuity and quality testing. The following is a detailed introduction to test probes: Types: There are many different types of test probes, including PCB probes, ICT functional test probes (such as automotive wiring harness test probes, battery probes, current and voltage probes, etc.), and BGA test probes. Depending on their origin, test probes can also be divided into American QA probes, German INGUN probes, and Korean LEENON probes.

[0003] Publication No. CN209707563U discloses a test probe. By designing the probe body with a flat top, the pressure exerted by the test probe is reduced, thereby preventing the test probe from damaging the product being tested. At the same time, the contact area between the probe body and the product being tested is increased, the conductivity of the probe body is enhanced, and the possibility of poor contact of the probe is reduced. The problem solved is that the tip of the existing test probe often pierces the ink of OGS model touch screens during testing, resulting in poor light transmission.

[0004] In order to solve the problem of using the test probe, the existing technology adopts a method of designing the needle body with a flat top to reduce the pressure caused by the test probe. However, the length of the test probe is inconvenient to adjust, which leads to the problems of inconvenience in use and short service life. Utility Model Content

[0005] The purpose of the present utility model is to provide an adjustable test probe to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] An adjustable test probe comprises a base, a connecting frame fixedly connected to the surface of the base, a clamping mechanism fixedly connected to one end of the connecting frame, and a test probe installed inside the clamping mechanism;

[0008] The test probe includes an external tube, which is installed inside the clamping mechanism. A pressure cap is threadedly connected to the surface of the external tube, a locking ring is installed inside the pressure cap, a telescopic rod is movably installed inside the locking ring, a probe is installed inside the telescopic rod, and a connecting thread is opened on the outer surface of the external tube;

[0009] The locking ring is divided into two half rings by a whole ring, and a slope is provided on the outer wall of the end of the locking ring away from the outer tube;

[0010] A top block is integrally provided at the right end of the inner portion of the pressure cap, and the left end of the top block is tightly pressed against the slope of the locking ring. Anti-slip grooves are provided on the outer wall of the pressure cap;

[0011] The telescopic rod is in sliding cooperation with the locking ring.

[0012] A further improvement of the technical solution of the present utility model is that the clamping mechanism includes a fixed block, which is fixedly connected to one end of the connecting frame. A mounting hole is opened on the surface of the fixed block, and the test probe is placed inside the mounting hole. When the test probe is adjusted to a suitable position inside the mounting hole.

[0013] A further improvement of the technical solution of the present utility model is that: a rotating bolt is threadedly connected to one side of the fixed block, one end of the rotating bolt is fixedly connected to a clamping block, one end of the clamping block is fixedly connected to a rubber block, and the rotating bolt is twisted, and the rotating bolt rotates on one side of the fixed block, and the rotating bolt drives the clamping block to move, and the clamping block and the rubber block clamp the test probe.

[0014] A further improvement of the technical solution of the present utility model is that: the probe includes a placement hole, which is opened at one end of the telescopic rod, and a lower disc is installed inside the placement hole. The lower end of the needle presses down the upper disc, and the lower end surface of the lower disc is fitly connected to the bottom of the placement hole.

[0015] A further improvement of the technical solution of the present invention is that a spring is installed on the surface of the lower disc, an upper disc is installed on one end of the spring, and the upper end surface of the upper disc is fitted and connected with the lower end surface of the needle, which makes disassembly and assembly simple and convenient.

[0016] A further improvement of the technical solution of the present invention is that: the internal thread of the placement hole is connected to a needle, one end of the needle is provided with an external thread, and the needle is threadedly fixed by the external thread.

[0017] A further improvement of the technical solution of the present invention is that the locking ring is slidably matched with the inner hole of the external tube, and the locking ring is also pressed and fixed on the external tube, thereby fixing the external tube and the telescopic rod in connection.

[0018] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0019] The utility model provides an adjustable test probe. When adjusting the length of the telescopic rod, the pressure cap is first twisted to allow the top block inside the pressure cap to leave the slope on the locking ring. The two halves of the locking ring will no longer be pressed tightly on the external tube and the telescopic rod, and the telescopic rod can be pulled to adjust the total length of the external tube and the telescopic rod. After the adjustment is completed, the pressure cap is twisted. Under the action of the external thread of the pressure cap, the inner side of the top block on the pressure cap will be pressed tightly on the slope of the locking ring. The two halves of the locking ring will shrink inward, thereby squeezing and fixing the telescopic rod. The locking ring will also be pressed and fixed on the external tube, thereby fixing the external tube and the telescopic rod. The test probe is easy to adjust and use, not easy to be damaged, and has a long service life.

[0020] The utility model provides an adjustable test probe, which can be disassembled and replaced by rotating the needle. During the installation process, the needle is threadedly connected to the inside of the corresponding placement hole, the lower end of the needle presses down the upper disc, and the lower end surface of the lower disc is fitly connected to the bottom of the placement hole. The upper end surface of the upper disc is fitly connected to the lower end surface of the needle. The disassembly and assembly are simple and convenient. When the test probe is worn out after long-term use, only the needle needs to be replaced without replacing other parts, which reduces costs and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 This is a schematic structural diagram of the clamping mechanism of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the test probe of the utility model;

[0024] Figure 4 Schematic diagram of the structure of the probe of the utility model;

[0025] Figure 5 This is a schematic structural diagram of the external tube of the utility model.

[0026] In the figure: 1. Base; 2. Connecting frame; 3. Clamping mechanism; 30. Fixing block; 31. Mounting hole; 32. Rotating bolt; 33. Clamping block; 34. Rubber block; 4. Test probe; 40. External tube; 401. Thread; 41. Pressure cap; 410. Top block; 42. Locking ring; 421. Slope; 43. Telescopic rod; 44. Probe; 440. Placement hole; 441. Lower disc; 442. Spring; 443. Upper disc; 444. External thread; 445. Needle. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below with reference to the embodiments: Example

[0028] like Figure 1-5 As shown, the utility model provides an adjustable test probe, including a base 1, a connecting frame 2 is fixedly connected to the surface of the base 1, one end of the connecting frame 2 is fixedly connected to a clamping mechanism 3, a test probe 4 is installed inside the clamping mechanism 3, the test probe 4 includes an external tube 40, the external tube 40 is installed inside the clamping mechanism 3, a pressure cap 41 is threadedly connected to the surface of the external tube 40, a locking ring 42 is installed inside the pressure cap 41, a telescopic rod 43 is movably installed inside the locking ring 42, and the telescopic rod 43 is movably installed inside the telescopic rod 43. A probe 44 is installed inside the outer tube 40. A connecting thread 401 is provided on the outer surface of the outer tube 40. The locking ring 42 is divided into two half rings by an integral ring. A slope 421 is provided on the outer wall of the locking ring 42 away from the outer tube 40. A top block 410 is integrally provided at the right end of the inner part of the pressure cap 41. The left end of the top block 410 is tightly pressed against the slope 421 of the locking ring 42. Anti-slip grooves are provided on the outer wall of the pressure cap 41. The telescopic rod 43 is in sliding cooperation with the locking ring 42, and the locking ring 42 is in sliding cooperation with the inner hole of the outer tube 40.

[0029] Specifically, when adjusting the length of the telescopic rod 43, first twist the pressure cap 41 to allow the top block 410 inside the pressure cap 41 to leave the slope 421 on the locking ring 42. The two halves of the locking ring 42 will no longer be pressed tightly against the outer tube 40 and the telescopic rod 43, and the telescopic rod 43 can be pulled to adjust the total length of the outer tube 40 and the telescopic rod 43. After the adjustment is completed, twist the pressure cap 41. Under the action of the external thread 444 of the pressure cap 41, the inner side of the top block 410 on the pressure cap 41 will be tightened against the slope 421 of the locking ring 42. The two halves of the locking ring 42 will shrink inward, thereby squeezing and fixing the telescopic rod 43. The locking ring 42 will also be pressed and fixed on the outer tube 40, thereby fixing the outer tube 40 and the telescopic rod 43. Example

[0030] like Figure 1-5 As shown, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the clamping mechanism 3 includes a fixed block 30, the fixed block 30 is fixedly connected to one end of the connecting frame 2, a mounting hole 31 is opened on the surface of the fixed block 30, a rotating bolt 32 is threadedly connected to one side of the fixed block 30, one end of the rotating bolt 32 is fixedly connected to the clamping block 33, and one end of the clamping block 33 is fixedly connected to the rubber block 34;

[0031] Specifically, the test probe 4 is placed inside the mounting hole 31. When the test probe 4 is adjusted to a suitable position inside the mounting hole 31, the rotating bolt 32 is twisted, and the rotating bolt 32 rotates on one side of the fixed block 30. The rotating bolt 32 drives the clamping block 33 to move, and the clamping block 33 and the rubber block 34 clamp the test probe. Example

[0032] like Figure 1-5As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the probe 44 includes a placement hole 440, the placement hole 440 is opened at one end of the telescopic rod 43, a lower disc 441 is installed inside the placement hole 440, a spring 442 is installed on the surface of the lower disc 441, an upper disc 443 is installed at one end of the spring 442, a needle 445 is connected to the inner thread of the placement hole 440, and an external thread 444 is opened at one end of the needle 445;

[0033] Specifically, the needle 445 can be disassembled and replaced by rotating it. During the installation process, the needle 445 is threadedly connected to the corresponding placement hole 440, and the lower end of the needle 445 presses down the upper disc 443. The lower end face of the lower disc 441 is fitted and connected to the bottom of the placement hole 440, and the upper end face of the upper disc 443 is fitted and connected to the lower end face of the needle 445. The disassembly and assembly are simple and convenient. When the probe 44 is worn out after long-term use, only the needle 445 needs to be replaced without replacing other parts, which reduces costs and is easy to use.

[0034] The following describes in detail the working principle of the adjustable test probe.

[0035] like Figure 1-5 As shown, when adjusting the length of the telescopic rod 43, first twist the pressure cap 41 to allow the top block 410 inside the pressure cap 41 to leave the slope 421 on the locking ring 42. The two halves of the locking ring 42 will no longer be pressed against the outer tube 40 and the telescopic rod 43, and the telescopic rod 43 can be pulled to adjust the total length of the outer tube 40 and the telescopic rod 43. After the adjustment is completed, twist the pressure cap 41. Under the action of the external thread 444 of the pressure cap 41, the inner side of the top block 410 on the pressure cap 41 will be pressed against the slope 421 of the locking ring 42. The two halves of the locking ring 42 will shrink inward, thereby squeezing and fixing the telescopic rod 43, and the locking ring 42 will also It is pressed and fixed on the external tube 40, thereby fixing the external tube 40 and the telescopic rod 43. It can be disassembled and replaced by rotating the needle 445. During the installation process, the needle 445 is threadedly connected to the corresponding placement hole 440, and the lower end of the needle 445 presses down the upper disc 443. The lower end face of the lower disc 441 is fitted and connected to the bottom of the placement hole 440. The upper end face of the upper disc 443 is fitted and connected to the lower end face of the needle 445. The disassembly and assembly are simple and convenient. When the probe 44 is worn out after long-term use, only the needle 445 needs to be replaced, and there is no need to replace other parts, which reduces costs and is easy to use.

[0036] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An adjustable test probe, comprising a base (1), characterized in that: A connecting frame (2) is fixedly connected to the surface of the base (1), a clamping mechanism (3) is fixedly connected to one end of the connecting frame (2), and a test probe (4) is installed inside the clamping mechanism (3); The test probe (4) comprises an external tube (40), the external tube (40) being installed inside the clamping mechanism (3), a pressure cap (41) being threadedly connected to the surface of the external tube (40), a locking ring (42) being installed inside the pressure cap (41), a telescopic rod (43) being movably installed inside the locking ring (42), a probe (44) being installed inside the telescopic rod (43), and a connecting thread (401) being provided on the outer surface of the external tube (40); The locking ring (42) is divided into two half rings from an integral ring, and a slope (421) is provided on the outer wall of one end of the locking ring (42) away from the outer tube (40); A top block (410) is integrally provided at the right end of the inner portion of the pressure cap (41), and the left end of the top block (410) is tightly pressed against the slope (421) of the locking ring (42). Anti-slip grooves are provided on the outer wall of the pressure cap (41); The telescopic rod (43) is slidably engaged with the locking ring (42).

2. The adjustable test probe according to claim 1, characterized in that: The clamping mechanism (3) comprises a fixing block (30), the fixing block (30) being fixedly connected to one end of the connecting frame (2), and a mounting hole (31) being provided on a surface of the fixing block (30).

3. The adjustable test probe according to claim 2, characterized in that: One side of the fixed block (30) is threadedly connected to a rotating bolt (32), one end of the rotating bolt (32) is fixedly connected to a clamping block (33), and one end of the clamping block (33) is fixedly connected to a rubber block (34).

4. The adjustable test probe according to claim 1, characterized in that: The probe (44) includes a placement hole (440), the placement hole (440) is opened at one end of the telescopic rod (43), and a lower disc (441) is installed inside the placement hole (440).

5. The adjustable test probe according to claim 4, characterized in that: A spring (442) is mounted on the surface of the lower disc (441), and an upper disc (443) is mounted on one end of the spring (442).

6. The adjustable test probe according to claim 5, characterized in that: The internal thread of the placement hole (440) is connected to a needle (445), and one end of the needle (445) is provided with an external thread (444).

7. The adjustable test probe according to claim 1, characterized in that: The locking ring (42) is in sliding engagement with the inner hole of the outer tube (40).

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