An interference-resistant shielded test probe

Abstract

The utility model provides a kind of anti-interference shielding test probe, belong to test probe technical field.The anti-interference shielding test probe, including receiving bin, shielding cover, detection probe, telescopic shielding net and limiting device, the outer wall of the receiving bin is movably sleeved with shielding cover, the inside of the shielding cover is equipped with several groups of slot, the inside of the slot is movably sleeved with detection probe, and the bottom end outer wall of the detection probe is movably sleeved with receiving bin.The utility model has, by the convenient replacement structure of three groups of connecting handle, fixed clamping plate and spring, just need to remove shielding cover sleeve, pull handle to make card pipe slot switching cooperation state, damaged probe can be easily pulled out, spring is automatically reset after handle is loosened, and fixed is completed, replacement process is greatly simplified, maintenance downtime is shortened, especially suitable for high frequency, large batch detection scene, reduce the efficiency loss caused by probe replacement.

Description

Technical Field

[0001] This utility model relates to the field of test probe technology, and in particular to an anti-interference shielding test probe. Background Technology

[0002] Test probes are precision components used in electronic testing to conduct electrical signals. They typically consist of a needle tip, a tube, and a spring. The needle tip is usually made of conductive materials such as copper alloy, and its small, sharp tip allows for precise contact with the solder joints or leads of the component under test. The spring provides cushioning pressure to ensure stable contact. Widely used in circuit board testing, semiconductor testing, and other scenarios, test probes are a crucial medium connecting testing equipment and the object under test, directly affecting the accuracy of signal transmission.

[0003] Because of their thin tips, anti-interference shielding test probes are prone to wear or accidental damage during use and need to be replaced in a timely manner. However, the replacement process of existing devices is cumbersome and involves many steps, resulting in low replacement efficiency. This not only affects the continuity of the testing process but may also increase testing costs due to excessive downtime, which significantly restricts the work efficiency of high-frequency and batch testing scenarios.

[0004] Therefore, this invention proposes an anti-interference shielding test probe. Utility Model Content

[0005] The purpose of this invention is to provide an anti-interference shielding test probe to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An anti-interference shielding test probe includes a receiving bin, a shielding cover, a detection probe, a telescopic shielding net, and a limiting device. The shielding cover is movably sleeved on the outer wall of the receiving bin. The shielding cover has several sets of slots inside, and the detection probe is movably sleeved inside each slot. The bottom outer wall of the detection probe is movably sleeved with the receiving bin.

[0008] The receiving hopper is internally fitted with two sets of limiting devices, which are stacked vertically. One set of limiting devices rotates relative to the other set of limiting devices.

[0009] Furthermore, the limiting device includes a fixed clamping plate, a baffle, three springs, a connecting handle, and a tube clamping groove. The fixed clamping plate has several sets of tube clamping grooves inside. The tube clamping grooves are two connected circles of different sizes. A detection probe is movably sleeved inside the tube clamping groove. A baffle is fixedly connected to the side of the fixed clamping plate. One end of four sets of three springs is fixedly connected to the outer wall of the baffle. The other end of the three springs is in contact with the inner wall of the receiving bin.

[0010] Furthermore, the telescopic shielding net includes connecting vertical rods, diagonal braces, connecting horizontal rods, and springs. Two sets of connecting vertical rods are arranged vertically, and multiple sets of diagonal braces are hinged to both sides. The intersection points of adjacent sets of diagonal braces are hinged together. The bottom ends of the multiple sets of vertically arranged connecting vertical rods are fixedly connected to vertically arranged connecting horizontal rods. Springs are provided on opposite sides of the two sets of connecting vertical rods, and the top end of the springs is fixedly connected to the connecting horizontal rods.

[0011] Furthermore, the detection probe includes a detection tip, a detection sleeve, a telescopic slider, a spring, and a limiting slot. The spring is movably sleeved inside the detection sleeve. The top of the spring is attached to the telescopic slider. The top of the telescopic slider is fixedly connected to the detection tip. The outer wall of the detection tip is movably sleeved with the shielding cover.

[0012] Furthermore, a limiting groove is formed on the outer wall of the probe sleeve, and the outer wall of the limiting groove is movably sleeved with the limiting device.

[0013] Furthermore, a connecting handle is fixedly connected to the outer wall of the baffle, and the outer wall of the connecting handle is movably connected to the receiving bin.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. The convenient replacement structure, consisting of a connecting handle, a fixing plate, and a spring, allows for easy removal of the damaged probe simply by removing the shielding cover, pulling the handle to switch the engagement state of the tube slot, and releasing the handle. The spring automatically resets after releasing the handle, greatly simplifying the replacement process and shortening maintenance downtime. It is especially suitable for high-frequency, high-volume testing scenarios, reducing efficiency losses caused by probe replacement.

[0016] 2. The telescopic shielding net uses high-efficiency electromagnetic blocking materials such as copper, aluminum, and silver. In conjunction with the shielding cover and receiving bin, it forms a full-round wrap around the probe. During testing, it retracts to fit the space with the probe, and after testing, it returns to its wrapping state by a spring. It isolates external electromagnetic interference throughout the process, avoids signal crosstalk, improves the stability and accuracy of the test signal, and ensures the reliability of the test data. Attached Figure Description

[0017] Figure 1 This is an external view of an anti-interference shielding test probe according to the present invention;

[0018] Figure 2 This is a diagram showing the internal structure of an anti-interference shielding test probe according to the present invention.

[0019] Figure 3 This is a structural diagram of a telescopic shielding mesh for an anti-interference shielding test probe according to the present invention;

[0020] Figure 4This is a structural diagram of the receiving bin of an anti-interference shielding test probe according to the present invention.

[0021] Figure 5 This is a structural diagram of the upper end of the limiting device for an anti-interference shielding test probe according to the present invention;

[0022] Figure 6 This is a bottom structural diagram of a limiting device for an anti-interference shielding test probe according to the present invention;

[0023] Figure 7 This is a diagram showing the internal structure of the detection probe of the anti-interference shielding test probe of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Receiving bin; 2. Shielding cover; 3. Detection probe; 31. Detection tip; 32. Detection sleeve; 33. Telescopic slider; 34. Spring 1; 35. Limiting slot; 4. Telescopic shielding net; 41. Connecting vertical rod; 42. Diagonal tie rod; 43. Connecting horizontal rod; 44. Spring 2; 5. Limiting device; 51. Fixing plate; 52. Baffle; 53. Spring 3; 54. Connecting handle; 55. Pipe slot. Detailed Implementation

[0026] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] Please see Figures 1 to 7 As shown, the anti-interference shielding test probe provided by this utility model includes a receiving bin 1, a shielding cover 2, a detection probe 3, a telescopic shielding net 4, and a limiting device 5. The outer wall of the receiving bin 1 is movably sleeved with the shielding cover 2. The shielding cover 2 has several sets of slots inside, and the detection probe 3 is movably sleeved inside each slot. The bottom outer wall of the detection probe 3 is movably sleeved with the receiving bin 1.

[0029] The receiving hopper 1 is equipped with two sets of limiting devices 5, which are connected in a movable manner and overlap vertically. One set of limiting devices 5 rotates 90 degrees relative to the other set of limiting devices 5.

[0030] Based on Example 1, please refer to Figures 1 to 7As shown, the limiting device 5 includes a fixed plate 51, a baffle 52, springs 53, a connecting handle 54, and a tube slot 55. The fixed plate 51 has several sets of tube slots 55 inside. The tube slots 55 are two connected circles of different sizes. The detection probe 3 is movably sleeved inside the tube slots 55. The baffle 52 is fixedly connected to the side of the fixed plate 51. One end of four sets of springs 53 is fixedly connected to the outer wall of the baffle 52. The other end of the springs 53 is in contact with the inner wall of the receiving bin 1.

[0031] A connecting handle 54 is fixedly connected to the outer wall of the baffle 52, and the outer wall of the connecting handle 54 is movably connected to the receiving bin 1.

[0032] The outer wall of the probe sleeve 32 is provided with a limiting groove 35, and the outer wall of the limiting groove 35 is movably connected to the limiting device 5.

[0033] When the detection probe 3 is damaged, the replacement operation can be completed quickly. First, disconnect the shielding cover 2 from the receiving bin 1 to fully expose the top of the detection probe 3. Then, pull the connecting handles 54 on both sides of the receiving bin 1 outward. The two sets of connecting handles 54 will drive the fixing plate 51 to move synchronously in the pulling direction through the baffle 52. At this time, the connection between the tube groove 55 and the detection probe 3 will switch from the original small circle engagement to a large circle engagement. The detection probe 3 is thus in a state where it can be freely pulled out. The operator can easily pull it out from the top and complete the replacement. After the replacement is completed, release the connecting handles 54. The fixing plate 51 will automatically reset under the elastic potential energy of the spring 3 53, so that the small circle inside the tube groove 55 is tightly engaged with the detection probe 3 again and forms a limit, ensuring that the probe remains stable during the detection process.

[0034] Example 2

[0035] The telescopic shielding net 4 includes connecting vertical rods 41, diagonal braces 42, connecting horizontal rods 43, and springs 44. Two sets of connecting vertical rods 41 are arranged vertically, and multiple sets of diagonal braces 42 are hinged to both sides. The intersection points of two adjacent sets of diagonal braces 42 are hinged together. The bottom ends of the multiple sets of vertically arranged connecting vertical rods 41 are fixedly connected to vertically arranged connecting horizontal rods 43. Springs 44 are provided on opposite sides of the two sets of connecting vertical rods 41, and the top end of the springs 44 is fixedly connected to the connecting horizontal rods 43.

[0036] The detection probe 3 includes a detection tip 31, a detection sleeve 32, a telescopic slider 33, a spring 34, and a limiting groove 35. The spring 34 is movably sleeved inside the detection sleeve 32. The top of the spring 34 is attached to the telescopic slider 33. The top of the telescopic slider 33 is fixedly connected to the detection tip 31. The outer wall of the detection tip 31 is movably sleeved with the shielding cover 2.

[0037] It should be noted that the telescopic shielding net 4 is made of materials with excellent electromagnetic blocking properties, such as copper, aluminum, and silver. These materials can effectively cut off the electromagnetic coupling path that the probe needs to be shielded from. When the device is running, the shielding cover 2 is sleeved on the top of the receiving bin 1, and the telescopic shielding net 4 is located inside the two, forming a sleeve structure with the detection probe 3, which surrounds each group of probes in all directions, thereby isolating external electromagnetic interference. During the detection process, when the external pressure causes the element to be tested to come into contact with the top of the detection probe 3 and the shielding cover 2, the probe and the element will make close contact. At the same time, the internal inclined rod 42 will rotate around the hinge point and drive the connecting vertical rod 41 to squeeze inward, so that the telescopic shielding net 4 will shrink synchronously to adapt to the squeezing space required during the detection. After the detection is completed, when the pressure at the top of the shielding cover 2 is released, the elastic potential energy of the spring 44 will drive the connecting vertical rod 41 to reset through the connecting horizontal rod 43, so that the telescopic shielding net 4 can always elastically wrap and block the detection probe 3, whether the detection is in progress or after the detection is completed, and continuously play the role of electromagnetic shielding.

[0038] Compared to traditional test probe devices, the optimized mechanical structure enables rapid replacement of test probes, significantly reducing maintenance downtime. It is especially suitable for high-frequency, high-volume testing scenarios. On the other hand, thanks to the dynamic adaptation design of the telescopic shielding mesh, the probes are reliably electromagnetically shielded throughout the entire testing cycle, effectively improving the stability and accuracy of the test signals.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An anti-interference shielding test probe, characterized in that, The device includes a receiving bin (1), a shielding cover (2), a detection probe (3), a telescopic shielding net (4), and a limiting device (5). The outer wall of the receiving bin (1) is movably fitted with the shielding cover (2). The shielding cover (2) has several sets of slots inside. The detection probe (3) is movably fitted inside each slot. The bottom outer wall of the detection probe (3) is movably fitted with the receiving bin (1). The receiving bin (1) is internally fitted with two sets of limiting devices (5), and the two sets of limiting devices (5) are overlapping vertically, with one set of limiting devices (5) rotating 90 degrees relative to the other set of limiting devices (5).

2. The anti-interference shielding test probe according to claim 1, characterized in that, The limiting device (5) includes a fixed plate (51), a baffle (52), springs (53), a connecting handle (54), and a tube slot (55). The fixed plate (51) has several sets of tube slots (55) inside. Each tube slot (55) is a circle of two different sizes connected together. A detection probe (3) is movably sleeved inside the tube slot (55). A baffle (52) is fixedly connected to the side of the fixed plate (51). One end of four sets of springs (53) is fixedly connected to the outer wall of the baffle (52). The other end of the springs (53) is in contact with the inner wall of the receiving bin (1).

3. The anti-interference shielding test probe according to claim 1, characterized in that, The telescopic shielding net (4) includes connecting vertical rods (41), diagonal braces (42), connecting horizontal rods (43), and springs (44). Two sets of connecting vertical rods (41) are arranged vertically, and multiple sets of diagonal braces (42) are hinged to both sides. The intersection points of two adjacent sets of diagonal braces (42) are hinged together. The bottom ends of the multiple sets of vertically arranged connecting vertical rods (41) are fixedly connected to vertically arranged connecting horizontal rods (43). Springs (44) are provided on opposite sides of the two sets of connecting vertical rods (41). The top end of the springs (44) is fixedly connected to the connecting horizontal rods (43).

4. The anti-interference shielding test probe according to claim 1, characterized in that, The detection probe (3) includes a detection tip (31), a detection sleeve (32), a telescopic slider (33), a spring (34), and a limiting slot (35). The spring (34) is movably sleeved inside the detection sleeve (32). The top of the spring (34) is attached to the telescopic slider (33). The top of the telescopic slider (33) is fixedly connected to the detection tip (31). The outer wall of the detection tip (31) is movably sleeved with the shielding cover (2).

5. The anti-interference shielding test probe according to claim 4, characterized in that, The outer wall of the probe sleeve (32) is provided with a limiting groove (35), and the outer wall of the limiting groove (35) is movably connected to the limiting device (5).

6. The anti-interference shielding test probe according to claim 2, characterized in that, The outer wall of the baffle (52) is fixedly connected to a connecting handle (54), and the outer wall of the connecting handle (54) is movably connected to the receiving bin (1).

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