Electrical equipment testing device

Abstract

The utility model relates to the technical field of electrical equipment testing, in particular to an electrical equipment testing device, which comprises a universal meter body, two connecting mechanisms are detachably connected onto the universal meter body, contact mechanisms are mounted at the end parts of the two connecting mechanisms, each contact mechanism comprises a contact pin, the end parts of the connecting mechanisms are fixedly connected with the contact pins, and the contact pins are connected with the universal meter body. The ends of the two contact pins are each of an inverted-T-shaped structure, conductive columns are slidably connected to the two contact pins, limiting blocks are fixedly connected to the inner walls of the two conductive columns, the limiting blocks are slidably connected with the sliding grooves, shells are fixedly connected to the outer walls of the two conductive columns, and clamps connected with the conductive columns are arranged at the ends of the two shells. The two contact pins are slidably connected with rubber pads, and first springs are clamped between the two rubber pads and the connecting mechanism, so that tight connection between the clamp and the contact pins can be realized, and influence on testing of the electrical equipment due to loosening and falling during testing is avoided.

Description

Technical Field

[0001] This utility model relates to a testing device, specifically an electrical equipment testing device, belonging to the field of electrical equipment testing technology. Background Technology

[0002] Electrical equipment testing is a crucial step in ensuring the safe and reliable operation of electrical equipment. It includes various testing items, such as current resistance testing, insulation resistance testing, withstand voltage testing, leakage current testing, and ultrasonic testing. The testing equipment used includes megohmmeters, multimeters, and electrical safety testers.

[0003] Currently, multimeters used for testing electrical equipment typically use clips to hold the contacts or use pins to make contact with the contacts to complete the test. On current multimeters, the clips and pins are plugged together. When using the clips, the pins are inserted into the holes on the clips, and then the clips hold the electrical equipment in place. The connection between the clips and pins is only plugged in, and this connection frequently needs to be engaged and disengaged, causing severe wear. This results in the connection wires easily falling off during measurement, causing the pins to separate from the clips, thus affecting the testing of the electrical equipment. Utility Model Content

[0004] The purpose of this invention is to provide an electrical equipment testing device to solve the above problems, which can achieve a tight connection between the clamp and the pin, and prevent the clamp from loosening and falling off during testing, thus affecting the testing of the electrical equipment.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: an electrical equipment testing device, comprising a multimeter body, two connecting mechanisms detachably connected to the multimeter body, each of the two connecting mechanisms having a contact mechanism installed at its end, each contact mechanism including a pin, each of the two connecting mechanisms having a pin fixedly connected to its end, each of the two pins having an axially formed sliding groove, each of the two pins having a convex-shaped structure at its end, each of the two pins having a conductive post slidably connected to its end, each of the two conductive posts having a limit block fixedly connected to its inner wall, the limit block being slidably connected to the sliding groove, each of the two conductive posts having a housing fixedly connected to its outer wall, each of the two housings having a clip at its end connected to the conductive post, each of the two pins having a rubber pad slidably connected to its end, and each of the two rubber pads having a first spring clamped between it and the connecting mechanism.

[0006] Preferably, the connection mechanism includes sockets, and the multimeter body has multiple sockets, two of which are plugged into each other, two of which are connected to connecting wires, and the ends of the two connecting wires are connected to pen barrels. One end of the first spring is fixed to the pen barrel, and one end of the pin is fixed to the pen barrel.

[0007] Preferably, there are multiple first springs, and the multiple first springs are distributed in a ring array on the rubber pad.

[0008] Preferably, the connecting mechanism further includes retaining rings, and retaining rings are fixedly connected to both pen barrels.

[0009] Preferably, the contact mechanism further includes a pointer, and each of the two pen barrels is fixedly connected with a pointer that is collinear with the slide groove.

[0010] Preferably, the contact mechanism further includes protrusions, and the surfaces of both housings are provided with protrusions at equal intervals.

[0011] Preferably, the multimeter body is provided with a storage mechanism, which includes a pull rod and a moving groove. Two moving grooves are opened opposite each other on the side wall of the multimeter body. Two pull rods are slidably connected to both sides of the multimeter body through the moving grooves. The outer end of the pull rod has an arc-shaped structure, and the opposite end of the pull rod has an L-shaped structure.

[0012] Preferably, the storage mechanism further includes a second spring, which is held between the two pull rods and the multimeter body.

[0013] Preferably, the storage mechanism further includes a placement base, and the side wall of the multimeter body is fixedly connected to the placement base with an arc-shaped structure.

[0014] The beneficial effects of this utility model are as follows: When using a clamp to hold the metal wire of an electrical device, the outer casing can be removed, the hole of the conductive post aligned with the pin, and the limiting block slid into the groove on the side wall of the pin. When the limiting block exceeds the maximum diameter of the side wall of the pin, that is, when the limiting block slides out of the groove, the outer casing can be rotated to displace the limiting block from the groove. The first spring at the end of the connecting mechanism will press against the outer casing, thus achieving the clamping of the limiting block by the rubber pad and the pin. This also achieves the installation of the clamp. Moreover, the rubber pad has a large friction force, which can prevent the limiting block from moving to the groove due to the rotation of the conductive post, causing the outer casing to fall off and affecting the detection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure of the pin, pen barrel, and outer shell of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure of the pin and the groove of this utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure of the pin, rubber pad and first spring of this utility model;

[0019] Figure 5 This is a schematic diagram of the connection structure of the outer shell, conductive post and limiting block of this utility model;

[0020] Figure 6 This is a schematic diagram of the connection structure of the clip and conductive post of this utility model;

[0021] Figure 7 This is a schematic diagram of the connection structure of the multimeter body and the pull rod of this utility model.

[0022] In the diagram: 1. Multimeter body; 2. Connecting mechanism; 201. Socket; 202. Plug; 203. Connecting wire; 204. Pen barrel; 205. Retaining ring; 3. Contact mechanism; 301. Housing; 302. Indicator; 303. Pin; 304. Protrusion; 305. Conductive post; 306. Clip; 307. Slide groove; 308. Rubber pad; 309. First spring; 310. Limiting block; 4. Storage mechanism; 401. Pull rod; 402. Placement seat; 403. Moving groove; 404. Second spring. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-7 As shown, an electrical equipment testing device includes a multimeter body 1. Two connecting mechanisms 2 are detachably connected to the multimeter body 1. Each end of the two connecting mechanisms 2 is equipped with a contact mechanism 3. Each contact mechanism 3 includes a pin 303. The pins 303 are fixedly connected to the ends of the two connecting mechanisms 2. Each pin 303 has an axially formed groove 307. The ends of the two pins 303 are convex. Each pin 303 is slidably connected to a conductive post 305. The inner walls of the two conductive posts 305 are fixedly connected to a limiting block 310. The limiting block 310 is slidably connected to the groove 307. The outer walls of the two conductive posts 305 are fixedly connected to a housing 301. The ends of the two housings 301 are provided with clips 306 connected to the conductive posts 305. Each pin 303 is slidably connected to a rubber pad 308. Each rubber pad 308 and the connecting mechanism 2 clamp a first spring 309.

[0025] As a technical optimization of this utility model, the connecting mechanism 2 includes a socket 201. The multimeter body 1 has multiple sockets 201, two of which are plugged into a plug 202. Two of the plugs 202 are connected to a connecting wire 203. The ends of the two connecting wires 203 are connected to a pen 204. One end of the first spring 309 is fixed to the pen 204, and one end of the pin 303 is fixed to the pen 204. During testing, the plug 202 is connected to the socket 201 to energize the pin 303.

[0026] As a technical optimization of this utility model, multiple first springs 309 are provided, and the multiple first springs 309 are distributed in a ring array on the rubber pad 308, which increases the squeezing effect of the rubber pad 308 on the limiting block 310 and prevents the conductive post 305 from rotating.

[0027] As a technical optimization of this utility model, the contact mechanism 3 further includes an indicator 302. The two pen barrels 204 are fixedly connected with an indicator 302 that is collinear with the slide groove 307, so that the limiting block 310 can be misaligned with the slide groove 307 after rotation, and the limiting block 310 can be prevented from slipping off.

[0028] As a technical optimization of this utility model, the contact mechanism 3 further includes protrusions 304. The surfaces of the two outer shells 301 are provided with protrusions 304 at equal intervals, which facilitates the removal of the outer shells 301.

[0029] As a technical optimization of this utility model, the connecting mechanism 2 further includes a retaining ring 205. Each of the two pen barrels 204 is fixedly connected to a retaining ring 205. The multimeter body 1 is provided with a storage mechanism 4, which includes a pull rod 401 and a moving groove 403. Two moving grooves 403 are opened opposite each other on the side wall of the multimeter body 1. Two pull rods 401 are slidably connected to both sides of the multimeter body 1 through the moving grooves 403. The outer end of each pull rod 401 has an arc-shaped structure. The opposite ends of the pull rods 401 are L-shaped. The storage mechanism 4 also includes a second spring 404. The second spring 404 is clamped between the two pull rods 401 and the multimeter body 1. The storage mechanism 4 also includes a placement seat 402. The side wall of the multimeter body 1 is fixedly connected to the arc-shaped placement seat 402. After the test, the pen 204 is placed between the pull rods 401 and the multimeter body 1 and clamped, with its end abutting against the placement seat 402, thus realizing the placement and storage of the pen 204.

[0030] In use, the plug at the end of the connecting wire 203 is inserted into the socket 201 on the multimeter body 1 through 202, energizing both connecting wires 203. The clamp 306 or the pin 303 can be selected to test the electrical equipment as needed. If the clamp 306 is used to hold the metal wire of the electrical equipment, the outer casing 301 can be removed, the hole of the conductive post 305 aligned with the pin 303, and the limiting block 310 slid into the groove 307 on the side wall of the pin 303. When the limiting block 310 exceeds the maximum diameter of the side wall of the pin 303, that is, when the limiting block 310 slides out of the groove 307, the outer casing 301 is rotated to displace the limiting block 310 from the groove 307. The first spring 309 at the end of the pen barrel 204 abuts the outer casing 301, thus clamping the limiting block 310 between the rubber pad 308 and the pin 303, thereby achieving… The installation of clip 306, and the rubber pad 308 having a large friction force, can prevent the conductive post 305 from rotating and causing the limiting block 310 to move to the slide groove 307, which would cause the outer shell 301 to fall off and affect the test. At the same time, the conductive post 305 connects the pin 303 and clip 306 together to provide power. Simply clamp clip 306 onto the metal wire to be tested. Adjust the value and switch on the multimeter body 1 to test the electrical equipment. When the pin 303 is needed, push the outer shell 301 in the direction of the pin 303 to retract the first spring 309. Rotate the outer shell 301 forcefully to move the limiting block 310 to the slide groove 307, which will slide the conductive post 305 out of the outside of the slide groove 307, completing the separation of the two. Use the pin 303 to contact the metal terminal to complete the test. Finally, after the test is completed, the pen 204 is clamped and fixed by the pull rod 401 to realize the storage of the pen 204.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electrical device testing apparatus comprising a multimeter body (1), characterized in that: The universal meter body (1) is detachably connected with two connecting mechanisms (2), the end of the two connecting mechanisms (2) is provided with a contact mechanism (3), the contact mechanism (3) comprises a pin (303), the end of the two connecting mechanisms (2) is fixedly connected with the pin (303), the two pins (303) are axially provided with a sliding groove (307), the end of the two pins (303) is in a convex structure, the two pins (303) are slidably connected with a conductive column (305), the inner wall of the two conductive columns (305) is fixedly connected with a limiting block (310), the limiting block (310) is slidably connected between the sliding groove (307), the outer wall of the two conductive columns (305) is fixedly connected with a shell (301), the end of the two shells (301) is provided with a clip (306) connected with the conductive column (305), the two pins (303) are slidably connected with a rubber pad (308), the two rubber pads (308) are clamped with a first spring (309) between the connecting mechanism (2).

2. An electrical device testing apparatus as claimed in claim 1, wherein: The connecting mechanism (2) comprises a jack (201), a plurality of jacks (201) are formed on the universal meter body (1), two of the jacks (201) are inserted with a plug (202), the two plugs (202) are connected with a connecting line (203), the end of the two connecting lines (203) is connected with a pen barrel (204), one end of the first spring (309) is fixed on the pen barrel (204), one end of the pin (303) is fixed on the pen barrel (204).

3. An electrical device testing apparatus as defined in claim 1, wherein: The first spring (309) is provided with a plurality of first springs (309), and the plurality of first springs (309) are arranged in an annular array on the rubber pad (308).

4. An electrical device testing apparatus as defined in claim 2, wherein: The connecting mechanism (2) further comprises a check ring (205), and the two pen barrels (204) are fixedly connected with the check ring (205).

5. An electrical device testing apparatus as defined in claim 2, wherein: The contact mechanism (3) further comprises a pointing mark (302), and the two pen barrels (204) are fixedly connected with the pointing mark (302) which is collinear with the sliding groove (307).

6. An electrical device testing apparatus as defined in claim 1, wherein: The contact mechanism (3) further comprises a protrusion (304), and the surfaces of the two shells (301) are equally provided with the protrusion (304).

7. An electrical device testing apparatus as defined in claim 1, wherein: The universal meter body (1) is provided with a storage mechanism (4), the storage mechanism (4) comprises a pull rod (401) and a moving groove (403), the side wall of the universal meter body (1) is oppositely provided with two moving grooves (403), and the two sides of the universal meter body (1) are slidably connected with two pull rods (401) through the moving grooves (403), the outer end of the pull rod (401) is in an arc structure, and the opposite end of the pull rod (401) is in an L-shaped structure.

8. An electrical device testing apparatus as claimed in claim 7, wherein: The storage mechanism (4) further comprises a second spring (404), and the second spring (404) is clamped between the two pull rods (401) and the universal meter body (1).

9. An electrical device testing apparatus as defined in claim 7, wherein: The storage mechanism (4) further comprises a placing seat (402), and the side wall of the universal meter body (1) is fixedly connected with an arc-shaped placing seat (402).

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