Insulation testing device for high-low voltage switch cabinet

Abstract

The utility model relates to the technical field of switch cabinet insulation resistance testing, and discloses a high and low voltage switch cabinet insulation testing device, which comprises a testing assembly and two terminal assemblies, the testing assembly comprises an insulation resistance tester body, and the two terminal assemblies are inserted in the insulation resistance tester body in a sliding manner; before the terminal body is inserted into the terminal interface, the movable sleeve slides upwards and rotates clockwise to enable the movable sleeve to be hung on the hanging rod, the sliding blocks and the clamping beads are unlocked, at the moment, the terminal body is inserted into the terminal interface, the butt-joint plate is pressed into the butt-joint groove, and the butt-joint plate is clamped in the butt-joint groove in the process that the butt-joint plate enters the butt-joint groove. When the terminal body is pulled, the clamping bead is clamped into the clamping groove, at the moment, the movable sleeve is rotated anticlockwise to be separated from the hanging rod, the annular plate and the locking blocks are reset, the sliding blocks and the clamping bead are locked, and the butt joint plate can be locked in the butt joint groove, so that the terminal body is prevented from loosening due to pulling in the use process, and the accuracy of a test result is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to switchgear insulation resistance test technical field more particularly to a kind of high-low voltage switchgear insulation test device. BACKGROUND

[0002] In the periodic maintenance of switchgear, insulation resistance test is a common test process, and the staff often uses insulation resistance tester to test;

[0003] The insulation resistance tester needs to be connected to the insulation resistance tester by the terminal connection of ground wire and test wire, and the current common connection mode is mostly that the terminal is inserted into the terminal interface on the insulation resistance tester, and the terminal is mainly fixed by the friction between the terminal and the terminal interface, but the friction is limited, and if the wire is loosened by pulling during use and not found by the staff, the test result will be inaccurate, therefore, a high-low voltage switchgear insulation test device is needed to solve the above problems. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a high-low voltage switchgear insulation test device to solve the problems in the above background art.

[0005] The utility model provides the following technical scheme:

[0006] A high-low voltage switchgear insulation test device, comprising a test assembly, two terminal assemblies, the test assembly comprising an insulation resistance tester body, further comprising a plurality of clamping assemblies, the plurality of clamping assemblies are circumferentially equidistantly arranged in the terminal assembly;

[0007] The terminal assembly comprises a handle, a butt joint plate and a terminal body, the butt joint plate is fixedly installed outside the handle, the terminal body is fixedly installed at the bottom of the handle, the insulation resistance tester body is equidistantly provided with three butt joint grooves and three terminal interfaces, the butt joint plate is matched with the butt joint groove, and the terminal body is matched with the terminal interface;

[0008] The clamping assembly comprises a sliding block, a clamping bead and a second spring, a plurality of sliding grooves are circumferentially equidistantly formed on the butt joint plate, the sliding block is slidingly installed in the sliding groove, the clamping bead is fixedly installed at the end of the sliding block, and the second spring is fixedly installed between the sliding block and the handle;

[0009] The inner wall of the butt joint groove is provided with a clamping groove, and the clamping bead can be clamped in the clamping groove.

[0010] The high-low voltage switchgear insulation test device further comprises a locking assembly, which is slidingly installed on the terminal assembly and can lock the clamping assembly to lock the terminal assembly in the insulation resistance tester body.

[0011] The locking assembly comprises a ring-shaped plate, a plurality of locking blocks, a sliding sleeve, a movable sleeve, the ring-shaped plate and the sliding sleeve are slidably sleeved outside the holding rod, the sliding sleeve is fixedly connected with the ring-shaped plate, the plurality of locking blocks are fixedly installed at the bottom of the ring-shaped plate in a circumferential equidistant manner, a locking groove is formed in the sliding block, the locking blocks can be slidably inserted into the locking groove, the movable sleeve is rotatably installed outside the sliding sleeve, a hanging groove is formed in the movable sleeve, and the terminal assembly further comprises a hanging rod, the hanging rod is fixedly installed on the holding rod, and the hanging groove is matched with the hanging rod.

[0012] The terminal assembly further comprises a plurality of fixing rods, a plurality of blocking pieces and a plurality of first springs, the plurality of fixing rods are fixedly installed at the top of the butt joint plate in a circumferential equidistant manner, the blocking pieces are fixedly installed at the top of the fixing rods, a plurality of circular holes are formed in the ring-shaped plate in a circumferential equidistant manner, the ring-shaped plate is slidably sleeved outside the plurality of fixing rods through the circular holes, and the first springs are fixedly installed between the blocking pieces and the ring-shaped plate.

[0013] The locking assembly further comprises a fixing ring, the fixing ring is fixedly installed on the inner wall of the movable sleeve, an annular groove is formed in the sliding sleeve, and the fixing ring is rotatably installed in the annular groove.

[0014] The clamping assembly further comprises two limiting strips, the two limiting strips are fixedly installed on the sliding block in a symmetrical mode, two limiting grooves are symmetrically formed in the sliding groove, and the limiting strips are slidably installed in the limiting grooves.

[0015] Technical effects and advantages of the utility model:

[0016] When the utility model is used, before the terminal body is inserted into the terminal interface, the movable sleeve is slid upward and rotated clockwise to be hung on the hanging rod, a plurality of sliding blocks and clamping beads are unlocked, at the moment, the terminal body is inserted into the terminal interface, and the butt joint plate is pressed into the butt joint groove, in the process that the butt joint plate enters the butt joint groove, the clamping beads are clamped into the clamping groove, at the moment, the movable sleeve is counterclockwise rotated to be separated from the hanging rod, the ring-shaped plate and a plurality of locking blocks are reset and locked a plurality of sliding blocks and clamping beads, and the butt joint plate can be locked in the butt joint groove, thereby preventing the terminal body from being loosened due to pulling in the use process, and the accuracy of test results is guaranteed. ACCURATE DRAWING

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the part structure schematic of the utility model Figure One ;

[0019] Figure 3 It is Figure 2 The structure enlarged view of A in the utility model;

[0020] Figure 4 It is the part structure schematic of the utility modelFigure Two ;

[0021] Figure 5 This is a schematic diagram of part of the structure of this utility model. Figure Three ;

[0022] Figure 6 This is a schematic diagram of the snap-fit ​​assembly structure of this utility model;

[0023] Figure 7 This is a schematic diagram of the locking component structure of this utility model.

[0024] The attached figures are labeled as follows: 1. Test component; 101. Insulation resistance tester body; 102. Connecting groove; 103. Terminal interface; 104. Snap-fit ​​groove; 2. Terminal assembly; 201. Handle; 202. Connecting plate; 203. Terminal body; 204. Slide groove; 205. Limiting groove; 206. Fixing rod; 207. Baffle; 208. First spring; 209. Hanging rod; 3. Snap-fit ​​assembly; 301. Slider; 302. Snap-fit ​​bead; 303. Second spring; 304. Locking groove; 305. Limiting strip; 4. Locking assembly; 401. Annular plate; 402. Locking block; 403. Round hole; 404. Sliding sleeve; 405. Movable sleeve; 406. Hanging groove; 407. Fixing ring; 408. Annular groove. Detailed Implementation

[0025] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0026] Figures 1-7 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 - Appendix Figure 7 The present invention will be further described below.

[0027] An insulation testing device for high and low voltage switchgear includes a testing component 1 and two terminal assemblies 2. The testing component 1 includes an insulation resistance tester body 101, and the two terminal assemblies 2 are slidably inserted into the insulation resistance tester body 101. The device also includes:

[0028] Several snap-fit ​​components 3 are circumferentially and equally spaced within the terminal assembly 2. The terminal assembly 2 can be snapped into the body 101 of the insulation resistance tester through the snap-fit ​​components 3.

[0029] The locking component 4 is slidably mounted on the terminal component 2 and can lock the snap-fit ​​component 3 to lock the terminal component 2 inside the insulation resistance tester body 101.

[0030] Specifically, the terminal assembly 2 includes a handle 201, a mating plate 202, and a terminal body 203. The mating plate 202 is fixedly installed on the outside of the handle 201, and the terminal body 203 is fixedly installed on the bottom of the handle 201. The insulation resistance tester body 101 has three mating slots 102 and three terminal interfaces 103 equidistantly spaced. The mating plate 202 is adapted to the mating slots 102, and the terminal body 203 is adapted to the terminal interfaces 103. The two handles 201 are respectively connected to the grounding wire and the test wire.

[0031] In this embodiment, one of the grips 201 is connected to the grounding wire, and the other grip 201 is connected to the test wire. In use, the two terminal bodies 203 are inserted into the terminal interface 103, and then the grounding wire is grounded, and the test wire is connected to the circuit inside the switch cabinet to perform the test.

[0032] Specifically, the snap-fit ​​assembly 3 includes a slider 301, a snap-fit ​​bead 302, and a second spring 303. The mating plate 202 has several grooves 204 equidistantly spaced on its circumference. The slider 301 is slidably installed in the grooves 204. The snap-fit ​​bead 302 is fixedly installed at the end of the slider 301. The second spring 303 is fixedly installed between the slider 301 and the handle 201. The inner wall of the mating groove 102 has a snap-fit ​​groove 104 that is compatible with the snap-fit ​​bead 302.

[0033] In this embodiment, the terminal body 203 is inserted into the terminal interface 103, and the mating plate 202 is pressed into the mating groove 102. During the process of the mating plate 202 entering the mating groove 102, the locking bead 302 and the slider 301 will contact the edge of the mating groove 102 and be squeezed, thereby sliding into the slide groove 204 and compressing the second spring 303. When the mating plate 202 is fully inserted into the mating groove 102, the locking bead 302 will correspond to the locking groove 104. At this time, the locking bead 302 is no longer squeezed, the second spring 303 will be released and push the slider 301 and the locking bead 302 to slide outward, so that the locking bead 302 enters the locking groove 104.

[0034] Specifically, the locking assembly 4 includes an annular plate 401, several locking blocks 402, a sliding sleeve 404, and a movable sleeve 405. The annular plate 401 and the sliding sleeve 404 are slidably sleeved on the outside of the grip 201. The sliding sleeve 404 is fixedly connected to the annular plate 401. Several locking blocks 402 are circumferentially fixedly installed at the bottom of the annular plate 401. A locking groove 304 is provided on the slider 301. The locking blocks 402 are slidably inserted into the locking groove 304. The movable sleeve 405 is rotatably installed on the outside of the sliding sleeve 404. A hooking groove 406 is provided on the movable sleeve 405. The terminal assembly 2 also includes a hooking rod 209. The hooking rod 209 is fixedly installed on the grip 201. The hooking groove 406 is adapted to the hooking rod 209.

[0035] In this embodiment, the movable sleeve 405 is pinched and slid upwards, causing the hook rod 209 to enter the vertical inner wall of the hook groove 406. Then, the movable sleeve 405 is rotated clockwise to cause the hook rod 209 to enter the horizontal inner wall of the hook groove 406, thus hooking the movable sleeve 405 onto the hook rod 209. The upward sliding of the movable sleeve 405 will cause the sliding sleeve 404 and the annular plate 401 to slide upwards, compressing several first springs 208 and simultaneously causing several locking blocks 402 to slide upwards and disengage from the locking groove 304, thereby unlocking several sliders 301 and locking beads 302.

[0036] Specifically, the terminal assembly 2 further includes several fixing rods 206, several baffles 207, and several first springs 208. The fixing rods 206 are circumferentially fixedly installed on the top of the docking plate 202, the baffles 207 are fixedly installed on the top of the fixing rods 206, and several circular holes 403 are circumferentially opened on the annular plate 401. The annular plate 401 slides around the fixing rods 206 through the circular holes 403, and the first springs 208 are fixedly installed between the baffles 207 and the annular plate 401.

[0037] In this embodiment, in the initial state, the first spring 208 is in the released state and applies a downward thrust to the annular plate 401.

[0038] Specifically, the locking assembly 4 also includes a fixing ring 407, which is fixedly installed on the inner wall of the movable sleeve 405. An annular groove 408 is provided on the sliding sleeve 404, and the fixing ring 407 is rotatably installed in the annular groove 408.

[0039] In this embodiment, the fixed ring 407 rotates within the annular groove 408, so that the movable sleeve 405 can both drive the sliding sleeve 404 to slide up or down, and can also rotate outside the sliding sleeve 404.

[0040] Specifically, the snap-fit ​​assembly 3 also includes two limiting strips 305, which are symmetrically fixedly installed on the slider 301. Two limiting grooves 205 are symmetrically opened in the slide groove 204, and the limiting strips 305 are slidably installed in the limiting grooves 205.

[0041] In this embodiment, the limiting strip 305 slides within the limiting groove 205, which can limit the slider 301 and prevent it from detaching from the groove 204.

[0042] Working principle: In use, before inserting the terminal body 203 into the terminal interface 103, pinch the movable sleeve 405 and slide it upwards to allow the hook rod 209 to enter the vertical inner wall of the hook groove 406. Then, rotate the movable sleeve 405 clockwise to allow the hook rod 209 to enter the horizontal inner wall of the hook groove 406, hooking the movable sleeve 405 onto the hook rod 209. The upward sliding of the movable sleeve 405 will cause the sliding sleeve 404 and the annular plate 401 to slide upwards, compressing several first springs 208 and simultaneously causing several locking blocks 402 to slide upwards and disengage from the locking groove 304, thereby unlocking several sliders 301 and locking beads 302. At this time, insert the terminal body 203 into the terminal interface 103 and press the mating plate 202 into the mating groove 102. During the process of the mating plate 202 entering the mating groove 102, the locking beads 302 and sliders 301... The slider 301 will contact the edge of the docking groove 102 and be squeezed, thereby sliding into the slide groove 204 and compressing the second spring 303. When the docking plate 202 is fully inserted into the docking groove 102, the locking bead 302 will correspond to the locking groove 104. At this time, the locking bead 302 will no longer be squeezed, and the second spring 303 will be released and push the slider 301 and the locking bead 302 to slide outward, so that the locking bead 302 enters the locking groove 104. At this time, the movable sleeve 405 is rotated counterclockwise to make the hook rod 209 disengage from the transverse inner wall of the hook groove 406. Then the movable sleeve 405 is released, and several first springs 208 will be released and push the annular plate 401 to slide downward, thereby driving several locking blocks 402 into the locking groove 304, thereby locking several sliders 301 and locking beads 302, thus locking the docking plate 202 in the docking groove 102.

Claims

1. An insulation testing device for high and low voltage switchgear, comprising a testing component (1) and two terminal assemblies (2), wherein the testing component (1) includes an insulation resistance tester body (101), characterized in that: It also includes several snap-fit ​​components (3), which are circumferentially equidistantly arranged within the terminal assembly (2); The terminal assembly (2) includes a handle (201), a mating plate (202), and a terminal body (203). The mating plate (202) is fixedly installed on the outside of the handle (201), and the terminal body (203) is fixedly installed on the bottom of the handle (201). The insulation resistance tester body (101) is provided with three mating slots (102) and three terminal interfaces (103) at equal intervals. The mating plate (202) is adapted to the mating slots (102), and the terminal body (203) is adapted to the terminal interfaces (103). The snap-fit ​​assembly (3) includes a slider (301), a snap-fit ​​bead (302), and a second spring (303). A plurality of grooves (204) are equidistantly provided on the circumference of the mating plate (202). The slider (301) is slidably installed in the grooves (204). The snap-fit ​​bead (302) is fixedly installed at the end of the slider (301). The second spring (303) is fixedly installed between the slider (301) and the handle (201). The inner wall of the docking groove (102) is provided with a snap-fit ​​groove (104), and the snap-fit ​​bead (302) can be snapped into the snap-fit ​​groove (104).

2. The high and low voltage switchgear insulation testing device according to claim 1, characterized in that: It also includes a locking component (4), which is slidably mounted on the terminal assembly (2) and is able to lock the snap-fit ​​component (3) to lock the terminal assembly (2) inside the insulation resistance tester body (101).

3. The high and low voltage switchgear insulation testing device according to claim 2, characterized in that: The locking assembly (4) includes an annular plate (401), several locking blocks (402), a sliding sleeve (404), and a movable sleeve (405). The annular plate (401) and the sliding sleeve (404) are slidably sleeved on the outside of the grip (201). The sliding sleeve (404) is fixedly connected to the annular plate (401). Several locking blocks (402) are circumferentially fixedly installed at equal intervals on the bottom of the annular plate (401). The slider (301) has a locking groove (304). The locking block (402) can be slidably inserted into the locking groove (304). The movable sleeve (405) is rotatably installed on the outside of the sliding sleeve (404). The movable sleeve (405) has a hanging groove (406). The terminal assembly (2) also includes a hanging rod (209). The hanging rod (209) is fixedly installed on the grip (201). The hanging groove (406) is adapted to the hanging rod (209).

4. The high and low voltage switchgear insulation testing device according to claim 3, characterized in that: The terminal assembly (2) also includes several fixing rods (206), several baffles (207), and several first springs (208). Several fixing rods (206) are circumferentially fixedly installed on the top of the docking plate (202). The baffles (207) are fixedly installed on the top of the fixing rods (206). Several circular holes (403) are circumferentially opened on the annular plate (401). The annular plate (401) slides through the circular holes (403) to connect several fixing rods (206). The first springs (208) are fixedly installed between the baffles (207) and the annular plate (401).

5. The high and low voltage switchgear insulation testing device according to claim 3, characterized in that: The locking assembly (4) also includes a fixing ring (407), which is fixedly installed on the inner wall of the movable sleeve (405). An annular groove (408) is provided on the sliding sleeve (404), and the fixing ring (407) is rotatably installed in the annular groove (408).

6. The high and low voltage switchgear insulation testing device according to claim 1, characterized in that: The snap-fit ​​assembly (3) also includes two limiting strips (305), which are symmetrically fixed on the slider (301). Two limiting grooves (205) are symmetrically opened in the slide groove (204), and the limiting strips (305) are slidably installed in the limiting grooves (205).

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