Cable shielding material detection device with multi-channel screening function

Abstract

The utility model relates to the technical field of cable shielding material detection, and particularly discloses a cable shielding material detection device with multichannel screening, which comprises an operation table, a detector body is mounted on the end face of the operation table, and an auxiliary mechanism is arranged on the end face of the detector body. The auxiliary mechanism comprises an iron plate fixedly connected to the end face of the detector body, a magnet is arranged on the end face of the iron plate, a round bar is fixedly connected to the end face of the magnet, and a placement plate is fixedly connected to the top end of the round bar. By means of the tight mutual adsorption effect generated between the magnet and the iron plate, reliable and stable support can be provided during placement, and it is ensured that the placement plate is kept stable in the working process and does not shake or shift easily; and when the position needs to be adjusted, the placing plate can be moved by virtue of the characteristic of magnetic force, and complicated dismounting or mounting steps are not needed, so that the use convenience is greatly improved by virtue of the operation mode.

Description

Technical Field

[0001] This utility model belongs to the field of cable shielding material testing technology, specifically relating to a cable shielding material testing device with multi-channel screening. Background Technology

[0002] Cable shielding materials are important materials used to reduce electromagnetic interference and radio frequency interference. Shielding materials are usually required to have good conductivity to ensure that electromagnetic interference is effectively confined within the shielding layer. The resistivity or conductivity of the shielding material is measured using the four-probe method or other professional resistance measuring instruments to evaluate its conductivity performance.

[0003] Based on the characteristics of the cable shielding material and the testing requirements, the parameters to be screened are determined, such as the material's resistivity, permeability, shielding effectiveness, and thickness. These parameters will serve as the basis for multi-channel screening. The four-probe tester (multi-channel type) has multi-channel testing capabilities. Based on the four-probe method measurement principle, it can simultaneously test the conductivity of multiple samples, and is especially suitable for measuring the resistivity of sheet or film cable shielding materials.

[0004] Chinese patent CN219777768U discloses a four-probe tester for semiconductor materials. The specification states that existing four-probe testers require placing the semiconductor material on a test platform during testing. Since some test materials are thin, they need to be held with tweezers during the test. To ensure the accuracy of the test data, it is often necessary to test different positions of the semiconductor material. However, existing test platforms for placing test materials are mostly fixed, and moving the test material with tweezers is time-consuming and laborious.

[0005] In the aforementioned application, although the placement platform can be moved quickly, it uses the method of energizing the coil, which generates a magnetic field by passing current through the coil, causing the iron core and the adsorption block to generate magnetic force, thereby fixing the placement platform. On the one hand, continuously energizing the coil means that additional electrical energy is required, which increases the operating cost of the equipment. On the other hand, this not only increases the manufacturing and installation cost of the equipment, but also increases the complexity and failure rate of the equipment to a certain extent, and also increases the difficulty of later maintenance. Utility Model Content

[0006] The purpose of this invention is to provide a cable shielding material testing device with multi-channel screening to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A cable shielding material testing device with multi-channel screening includes an operating table. A testing instrument body is mounted on the end face of the operating table. An auxiliary mechanism is provided on the end face of the testing instrument body. The auxiliary mechanism includes an iron plate fixedly connected to the end face of the testing instrument body. A magnet is provided on the end face of the iron plate. A round rod is fixedly connected to the end face of the magnet. A placement plate is fixedly connected to the top of the round rod.

[0009] Preferably, the bottom surface of the placement plate is fixedly connected to two first L-shaped plates, and each of the two first L-shaped plates is slidably inserted with a sliding rod, and the top of each of the two sliding rods is fixedly connected to a pressure plate.

[0010] Preferably, a spring is fitted onto the arc surface of the slide rod, and the two ends of the spring are fixedly connected to the first L-shaped plate and the slide rod, respectively.

[0011] Preferably, the bottom surface of the placement plate has a locking hole, the bottom surface of the placement plate is fixedly connected to a locking block, and the bottom surface of the placement plate is equipped with a first round rod and a second round rod.

[0012] Preferably, a protrusion is fixedly connected to one end of the first round rod near the placement plate, the size of the protrusion being adapted to the size of the card hole, and a round hole is provided at one end of the second round rod near the card block, the size of the round hole being adapted to the size of the card block.

[0013] Preferably, the size of the protrusion is adapted to the size of the circular hole, and both the arc surfaces of the first and second circular rods are fitted with sponge sleeves.

[0014] Preferably, a second L-shaped plate is fixedly connected to the end face of the detector body, a rectangular frame is slidably connected to the surface of the second L-shaped plate, a handle is fixedly connected to the end face of the rectangular frame, a cross block is fixedly connected to the side wall of the rectangular frame, and a cross groove adapted to the cross block is opened at the end of the first round rod away from the protrusion.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model utilizes the close mutual attraction between the magnet and the iron plate to provide reliable and stable support during placement, ensuring that the placement plate remains stable during operation and will not easily shake or shift. Moreover, when the position needs to be adjusted, the magnetic properties allow the placement plate to be moved without complicated disassembly or installation steps. This operation method greatly improves the convenience of use.

[0017] 2. When testing cable shielding materials, the first and second round rods of this utility model serve to support the placement plate, preventing uneven force on the top of the placement plate from causing tilting. When not testing, the first and second round rods also serve to clean the dust on the surface of the iron plate, preventing excessive dust from affecting the adsorption effect between the iron plate and the magnet.

[0018] 3. This utility model utilizes the elasticity of springs to securely hold thin cable shielding material on the placement plate, facilitating the inspection of the cable shielding material by staff. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This utility model Figure 1 A partial diagram of the split structure;

[0021] Figure 3 This utility model Figure 1 Schematic diagram of the structure at point A in the middle;

[0022] Figure 4 This utility model Figure 2 Schematic diagram of the structure at point B;

[0023] Figure 5 This is a schematic diagram of the structure of the first and second round rods of this utility model.

[0024] In the diagram: 1. Operating table; 101. Detector body; 2. Auxiliary mechanism; 201. Iron plate; 202. Magnet; 203. Round bar; 204. Placement plate; 205. First L-shaped plate; 206. Slide rod; 207. Pressure plate; 208. Spring; 209. Locking hole; 210. Locking block; 211. First round rod; 212. Protrusion; 213. Second round rod; 214. Round hole; 215. Second L-shaped plate; 216. Rectangular frame; 217. Handle; 218. Cross block; 219. Cross groove. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-5As shown, this utility model provides a cable shielding material testing device with multi-channel screening, including an operating table 1. A testing instrument body 101 is installed on the end face of the operating table 1. An auxiliary mechanism 2 is provided on the end face of the testing instrument body 101. The auxiliary mechanism 2 includes an iron plate 201 fixedly connected to the end face of the testing instrument body 101. A magnet 202 is provided on the end face of the iron plate 201. A round rod 203 is fixedly connected to the end face of the magnet 202. A placement plate 204 is fixedly connected to the top of the round rod 203.

[0027] In this embodiment, the operating table 1 and the detector body 101 are connected by wires, and both the operating table 1 and the detector body 101 are existing devices. The detector body 101 itself has a multi-channel screening function, which will not be described in detail here. With the help of magnet 202 and iron plate 201 adsorbing each other, the placement plate 204 can be stably placed while the position of the placement plate 204 can be moved at will, which is convenient to operate.

[0028] In an optional embodiment: two first L-shaped plates 205 are fixedly connected to the bottom surface of the placement plate 204. Sliding rods 206 are slidably inserted on the surface of each of the two first L-shaped plates 205. Pressure plates 207 are fixedly connected to the top of each of the two sliding rods 206. Springs 208 are sleeved on the arc surface of the sliding rods 206. The two ends of the springs 208 are fixedly connected to the first L-shaped plates 205 and the sliding rods 206, respectively.

[0029] It should be noted that the elastic force of the spring 208 can securely hold the thinner cable shielding material onto the placement plate 204.

[0030] In an optional embodiment: a locking hole 209 is provided on the bottom surface of the placement plate 204, a locking block 210 is fixedly connected to the bottom surface of the placement plate 204, a first round rod 211 and a second round rod 213 are installed on the bottom surface of the placement plate 204, a protrusion 212 is fixedly connected to one end of the first round rod 211 near the placement plate 204, the size of the protrusion 212 is adapted to the size of the locking hole 209, and a round hole 214 is provided on one end of the second round rod 213 near the locking block 210, the size of the round hole 214 is adapted to the size of the locking block 210.

[0031] It should be noted that the first round rod 211 is securely held below the placement plate 204 by engaging with the protrusion 212 and the locking hole 209, and the second round rod 213 is securely held below the placement plate 204 by the locking block 210 and the round hole 214. The first round rod 211 and the second round rod 213 serve to support the placement plate 204 and prevent the placement plate 204 from tilting due to uneven force on the top.

[0032] In an optional embodiment: the size of the protrusion 212 is adapted to the size of the circular hole 214, and the arc surfaces of the first circular rod 211 and the second circular rod 213 are both fitted with sponge sleeves.

[0033] The end face of the detector body 101 is fixedly connected to a second L-shaped plate 215. A rectangular frame 216 is slidably connected to the surface of the second L-shaped plate 215. A handle 217 is fixedly connected to the end face of the rectangular frame 216. A cross block 218 is fixedly connected to the side wall of the rectangular frame 216. A cross groove 219 that matches the cross block 218 is opened at the end of the first round rod 211 away from the protrusion 212.

[0034] It should be noted that the engagement of the protrusion 212 and the round hole 214 allows the first round rod 211 and the second round rod 213 to be joined together. The sponge sleeves on the surfaces of the first round rod 211 and the second round rod 213 can clean the dust on the surface of the iron plate 201. That is, when testing the cable shielding material, the first round rod 211 and the second round rod 213 serve to support the placement plate 204. When not testing, the first round rod 211 and the second round rod 213 also serve to clean the dust on the surface of the iron plate 201, preventing excessive dust from affecting the adsorption effect between the iron plate 201 and the magnet 202.

[0035] The working principle of this utility model is as follows: During use, the operator connects the detector body 101 and the operating table 1 with electrical wires. First, the pressure plate 207 is pulled, causing the spring 208 to deform. The cable shielding material is placed between the placement plate 204 and the pressure plate 207. The spring force of the spring 208 stabilizes the cable shielding material. The detector body 101 then detects the cable shielding material. If the detection position of the cable shielding material needs to be changed, the round bar 203 is moved directly. The magnet 202 slides on the iron plate 201 and is stabilized by magnetic force. The detection is performed without detecting the cable shielding material. When it is necessary to clean the dust on the iron plate 201, after removing the magnet 202 from the iron plate 201, the first round rod 211 and the second round rod 213 are disassembled, the protrusion 212 is inserted into the round hole 214, and the cross groove 219 is inserted into the cross block 218. At this time, the sponge sleeves on the surface of the first round rod 211 and the second round rod 213 will contact the iron plate 201. By pulling the handle 217, the rectangular frame 216 is moved to slide along the surface of the second L-shaped plate 215, and the sponge sleeves on the surface of the first round rod 211 and the second round rod 213 will clean the dust on the iron plate 201.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cable shielding material testing device with multi-channel screening, comprising an operating table (1), wherein a testing instrument body (101) is mounted on the end face of the operating table (1), characterized in that, The end face of the detector body (101) is provided with an auxiliary mechanism (2). The auxiliary mechanism (2) includes an iron plate (201) fixedly connected to the end face of the detector body (101). The end face of the iron plate (201) is provided with a magnet (202). The end face of the magnet (202) is fixedly connected with a round rod (203). The top end of the round rod (203) is fixedly connected with a placement plate (204).

2. The cable shielding material testing device with multi-channel screening according to claim 1, characterized in that: The bottom surface of the placement plate (204) is fixedly connected to two first L-shaped plates (205), and slide rods (206) are slidably inserted on the surface of the two first L-shaped plates (205). Pressure plates (207) are fixedly connected to the top of the two slide rods (206).

3. The cable shielding material testing device with multi-channel screening according to claim 2, characterized in that: The arc surface of the slide rod (206) is fitted with a spring (208), and the two ends of the spring (208) are fixedly connected to the first L-shaped plate (205) and the slide rod (206) respectively.

4. The cable shielding material testing device with multi-channel screening according to claim 1, characterized in that: The bottom surface of the placement plate (204) is provided with a card hole (209), and a card block (210) is fixedly connected to the bottom surface of the placement plate (204). A first round rod (211) and a second round rod (213) are installed on the bottom surface of the placement plate (204).

5. The cable shielding material testing device with multi-channel screening according to claim 4, characterized in that: The first round rod (211) has a protrusion (212) fixedly connected to one end near the placement plate (204). The size of the protrusion (212) is adapted to the size of the card hole (209). The second round rod (213) has a round hole (214) at one end near the card block (210). The size of the round hole (214) is adapted to the size of the card block (210).

6. The cable shielding material testing device with multi-channel screening according to claim 5, characterized in that: The size of the protrusion (212) is adapted to the size of the circular hole (214), and the arc surface of the first circular rod (211) and the arc surface of the second circular rod (213) are both fitted with sponge sleeves.

7. The cable shielding material testing device with multi-channel screening according to claim 5, characterized in that: The end face of the detector body (101) is fixedly connected to a second L-shaped plate (215), and a rectangular frame (216) is slidably connected to the surface of the second L-shaped plate (215). A handle (217) is fixedly connected to the end face of the rectangular frame (216), and a cross block (218) is fixedly connected to the side wall of the rectangular frame (216). A cross groove (219) adapted to the cross block (218) is opened at the end of the first round rod (211) away from the protrusion (212).

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