A resistivity testing apparatus

Abstract

The utility model discloses a kind of resistivity test equipment, including equipment body, the outside of equipment body is provided with docking terminal, the outside of equipment body is provided with protection assembly and limiting component;The protection assembly includes shell, protection plate, protruding part, first spring, clamping block and clamping groove;The shell is fixedly connected to the outside of equipment body, and the shell is located at the outside of docking terminal, the protection plate is axially slidingly connected to the inside of shell, the protection assembly, the opening of shell is opened by the protection plate of outwardly moving state, then the opening of shell is closed by the protection plate of inwardly moving state, to protect the docking terminal of unused state, the limiting component, the docking line cable is clamped and supported by the two groups of limiting frame of moving state of being close to, avoid the situation that docking line cable is easily separated from docking terminal.

Description

Technical Field

[0001] This utility model belongs to the field of testing equipment technology, and in particular relates to a resistivity testing device. Background Technology

[0002] Resistivity testing equipment is a specialized instrument used to measure the resistivity of materials. Its core principle is to calculate the resistivity by measuring the resistance value of the material and combining it with geometric parameters.

[0003] Existing resistivity testing equipment requires the wiring cables to be installed on the mating terminals during use. The equipment surface lacks a structure to clamp and support the wiring cables, which makes it easy for the wiring cables to detach from the mating terminals. Furthermore, when the mating terminals are not in use, their joints remain open, allowing fine dust from the outside to easily enter the interior of the mating terminals, which can interfere with the normal use of the equipment. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a resistivity testing device that can solve the problem mentioned in the background art where, during use, the wiring cable easily detaches from the mating terminal, and fine dust from the outside easily enters the mating terminal, causing interference with the normal use of the device.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A resistivity testing device includes a device body, a plurality of mating terminals are provided on the outer side of the device body, and a protective component is provided on the outer side of the device body. The protective component includes a shell, a protective plate, a protrusion, and a first spring. The outer casing is fixedly connected to the outside of the device body, and the outer casing is located outside the docking terminal, with an opening on the side of the outer casing away from the device body; The protective plate is inserted through and slidably connected to the inside of the outer shell, and the protective plate is used to cover the opening of the outer shell; The first spring is disposed between one side of the outer shell and the protrusion, and the two ends of the first spring are respectively fixed to the outer wall of the outer shell and the protrusion. The first spring provides the protective plate with an elastic force to slide toward the inside of the outer shell.

[0006] According to one embodiment of the present invention, the protective component further includes a locking block and a locking groove. The locking block is fixedly connected to the side of the protrusion facing the outer shell, and the locking groove is disposed on the outer wall of the outer shell corresponding to the locking block. The locking block is locked in the locking groove.

[0007] According to one embodiment of the present invention, a limiting component is provided on the outer shell, the limiting component including two connecting rods, a plurality of limiting frames and two adjusting components; The two connecting rods pass through the interior of the housing and are respectively located on the upper and lower sides of the docking terminal. The limiting frame is mounted on the connecting rod, and each connecting rod on the upper and lower sides of the docking terminal is provided with a limiting frame. Both ends of the connecting rod extend out of the housing, and the adjusting components are respectively located on both sides of the housing. The adjusting components connect the two connecting rods and are used to adjust the distance between the two connecting rods.

[0008] According to one embodiment of the present invention, the adjustment component includes: Two sliding grooves are respectively provided on the upper and lower sides of the outer wall of the housing. One end of each of the two connecting rods passes through and is slidably connected in the two sliding grooves. The connecting rods can slide up and down through the sliding grooves. Two supports are respectively located on the upper and lower sides of the outer wall of the outer shell; The support rod is fixedly connected to the two brackets at both ends, and the support rod passes through and is slidably connected to the two connecting rods; The second spring is sleeved on the support rod and located between the two connecting rods; A screw passes through one of the connecting rods and is threaded to the other connecting rod.

[0009] According to one embodiment of the present invention, the limiting frame has an arc-shaped structure, and the upper and lower limiting frames that are close to each other in the moving state are used to clamp and support the wiring cable.

[0010] According to one embodiment of the present invention, the number of the mating terminals is three.

[0011] Because of the adoption of the above technical solution, this utility model has the following advantages and positive effects compared with the prior art: This protective component allows the protective plate in the outward-moving state to open the opening of the housing, and the protective plate in the inward-moving state to close the opening of the housing, thereby protecting the unused docking terminals; this limiting component allows two sets of limiting brackets in the close-moving state to clamp and support the wiring cable, preventing the wiring cable from easily detaching from the docking terminal. Attached Figure Description

[0012] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This is a schematic diagram of the protective component structure of this utility model; Figure 3 This is a side view of the structure of this utility model; Figure 4 This is a schematic diagram of the limiting component structure of this utility model.

[0013] Explanation of reference numerals in the attached figures: 1. Equipment body; 2. Protective components; 201. Outer shell; 202. Protective plate; 203. Protrusion; 204. First spring; 205. Locking block; 206. Locking groove; 3. Limiting components; 301. Connecting rod; 302. Limiting frame; 303. Bracket; 304. Support rod; 305. Second spring; 306. Slide groove; 307. Screw; 4. Connecting terminal. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise ratios, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0015] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0016] See Figures 1 to 4 The core of this utility model is to provide a resistivity testing device, including a device body 1. The device body 1 has a plurality of docking terminals 4 on its outer side. The device body 1 also has a protective component 2 on its outer side. The protective component 2 includes a shell 201, a protective plate 202, a protrusion 203, and a first spring 204.

[0017] The outer casing 201 is fixedly connected to the outside of the device body 1, and the outer casing 201 is located outside the docking terminal 4. The outer casing 201 has an opening on the side away from the device body 1. The protective plate 202 passes through and is slidably connected to the inside of the outer casing 201. The protective plate 202 is used to cover the opening of the outer casing 201.

[0018] The first spring 204 is disposed between one side of the outer shell 201 and the protrusion 203, and the two ends of the first spring 204 are respectively fixed to the outer wall of the outer shell 201 and the protrusion 203. The first spring 204 provides the protective plate 202 with an elastic force to slide toward the inside of the outer shell 201.

[0019] The protective component 2 further includes a locking block 205 and a locking slot 206. The locking block 205 is fixedly connected to the side of the protrusion 203 facing the outer shell 201. The locking slot 206 is provided on the outer wall of the outer shell 201 corresponding to the locking block 205. The locking block 205 is locked in the locking slot 206.

[0020] It includes a limiting component 3 disposed on the outer shell 201, the limiting component 3 including two connecting rods 301, a plurality of limiting frames 302 and two adjusting components.

[0021] Two connecting rods 301 are inserted inside the housing 201 and are located on the upper and lower sides of the docking terminal 4 respectively. The limiting frame 302 is provided on the connecting rods 301, and a limiting frame 302 is provided on the connecting rods 301 on the upper and lower sides of each docking terminal 4.

[0022] Both ends of the connecting rod 301 extend out of the housing 201. The adjustment components are respectively located on both sides of the housing 201. The adjustment components connect the two connecting rods 301 and are used to adjust the distance between the two connecting rods 301.

[0023] The adjustment assembly includes two slide grooves 306, two brackets 303, a support rod 304, a second spring 305, and a screw 307. The two slide grooves 306 are respectively located on the upper and lower sides of the outer wall of the housing 201. One end of each of the two connecting rods 301 passes through and is slidably connected to the two slide grooves 306, allowing the connecting rods 301 to slide up and down via the slide grooves 306. The two brackets 303 are respectively located on the upper and lower sides of the outer wall of the housing 201. Both ends of the support rod 304 are fixedly connected to the two brackets 303, and the support rod 304 passes through and is slidably connected to the two connecting rods 301. The second spring 305 is sleeved on the support rod 304 and located between the two connecting rods 301. The screw 307 passes through one of the connecting rods 301 and is threadedly connected to the other connecting rod 301.

[0024] The limiting frame 302 has an arc-shaped structure, and the upper and lower limiting frames 302 in a close-to-moving state are used to clamp and support the wiring cable. The number of the docking terminals 4 is three.

[0025] Working principle: When the wiring cable needs to be connected to the terminal 4, the protective plate 202 is first moved to the outside of the outer shell 201, so that the protective plate 202 and the protrusion 203 in the outward movement stretch the first spring 204 and drive the locking block 205 to be pulled out from the inside of the slot 206. Then the locking block 205 and the slot 206 in the separated state release the position limit of the protective plate 202, and the protective plate 202 in the outward movement opens the opening of the outer shell 201. Now, insert the wiring cable into the docking terminal 4, and press the two connecting rods 301 with your hand to make them move closer together along the tracks of the two sliding grooves 306. The two connecting rods 301 in the close-moving state will compress the second spring 305. The second spring 305 will be compressed by the force, and then the two connecting rods 301 in the close-moving state will drive the two sets of limiting brackets 302 to move closer together. Then, connect the screw 307 to the other connecting rod 301 with a thread. The screw 307 in the tightened state will limit the position of the two connecting rods 301. Thus, the two sets of limiting brackets 302 in the close-moving state will clamp and support the wiring cable, preventing the wiring cable from easily detaching from the docking terminal 4.

[0026] The protective component 2 of this utility model allows the protective plate 202 in the outward moving state to open the opening of the outer shell 201, and the protective plate 202 in the inward moving state to close the opening of the outer shell 201, thereby protecting the docking terminal 4 in the unused state; the limiting component 3 allows two sets of limiting frames 302 in the close moving state to clamp and support the wiring cable, preventing the wiring cable from easily detaching from the docking terminal 4.

[0027] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A resistivity testing device, comprising a device body (1), wherein a plurality of mating terminals (4) are disposed on the outer side of the device body (1), characterized in that, The outer side of the device body (1) is provided with a protective component (2), which includes a shell (201), a protective plate (202), a protrusion (203), and a first spring (204). The outer casing (201) is fixedly connected to the outside of the device body (1), and the outer casing (201) is located outside the docking terminal (4), with the outer casing (201) having an opening on the side away from the device body; The protective plate (202) is inserted through and slidably connected to the inside of the outer shell (201), and the protective plate (202) is used to cover the opening of the outer shell (201); The first spring (204) is disposed between one side of the outer shell (201) and the protrusion (203), and the two ends of the first spring (204) are respectively fixed to the outer wall of the outer shell (201) and the protrusion (203). The first spring (204) provides the protective plate (202) with an elastic force that allows it to slide toward the inside of the outer shell (201).

2. The resistivity testing device according to claim 1, characterized in that, The protective component (2) further includes a locking block (205) and a locking slot (206). The locking block (205) is fixedly connected to the side of the protrusion (203) facing the outer shell (201). The locking slot (206) is provided on the outer wall of the outer shell (201) corresponding to the locking block (205). The locking block (205) is locked in the locking slot (206).

3. The resistivity testing device according to claim 1, characterized in that, Includes a limiting component (3) disposed on the outer shell (201), the limiting component (3) including two connecting rods (301), a plurality of limiting brackets (302) and two adjusting components; Two connecting rods (301) pass through the interior of the housing (201) and are located on the upper and lower sides of the docking terminal (4), respectively. The limiting frame (302) is provided on the connecting rod (301), and each connecting rod (301) on the upper and lower sides of the docking terminal (4) is provided with a limiting frame (302). Both ends of the connecting rod (301) extend out of the housing (201). The adjustment components are respectively located on both sides of the housing (201). The adjustment components connect the two connecting rods (301) and are used to adjust the distance between the two connecting rods (301).

4. The resistivity testing device according to claim 3, characterized in that, The adjustment component includes: Two sliding grooves (306) are respectively provided on the upper and lower sides of the outer wall of the outer shell (201). One end of the two connecting rods (301) are respectively inserted and slidably connected in the two sliding grooves (306). The connecting rods (301) can slide up and down through the sliding grooves (306). Two brackets (303) are respectively provided on the upper and lower sides of the outer wall of the outer shell (201); The support rod (304) is fixedly connected to the two brackets (303) at both ends, and the support rod (304) passes through and is slidably connected to the two connecting rods (301). The second spring (305) is sleeved on the support rod (304) and located between the two connecting rods (301); A screw (307) passes through one of the connecting rods (301) and is threaded to the other connecting rod (301).

5. The resistivity testing device according to claim 3, characterized in that, The limiting frame (302) has an arc-shaped structure, and the upper and lower limiting frames (302) in the moving state are used to clamp and support the wiring cable.

6. The resistivity testing device according to claim 1, characterized in that, The number of the docking terminals (4) is three.

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