Electric appliance insulation detection device

Abstract

The utility model discloses an electric appliance insulation detection device, which comprises a base and a clamp, the base is fixed at one end of the clamp through a screw, a wire coil for placing a cable is arranged in the base, a positioning structure for quickly positioning the cable is arranged in the wire coil, and an insulation detector is fixedly connected with the clamp through a screw; through the arrangement of the clamp structure, the opening and closing operation is simplified through the reset effect of the first spring in the clamp structure, and the wire coil can be fixed and released through one-time pressing; the pull ring on one side of the wire coil is designed to be matched with the screw rod, the wire coils matched with cables of different specifications can be conveniently and rapidly replaced, the operation complexity is reduced, the preparation time is shortened, multiple to-be-detected cables can be placed at the same time through the multiple linearly-arranged semicircular wire grooves formed in the wire coil, and the detection efficiency is improved. In cooperation with the automatic clamping function of two sets of arc-shaped jacking blocks and positioning springs in the positioning structure, the complexity of traditional one-by-one alignment operation is avoided.

Description

Technical Field

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

[0002] Electrical insulation testing devices are specialized instruments used to test whether the insulation performance of electrical equipment, wires and cables or other electronic components meets the standards. They are used to assess the ability of insulation materials to withstand high voltage and prevent safety hazards such as leakage, short circuits, and electric shock.

[0003] A search revealed a patent application (CN118534276A) disclosing an insulation testing fixture for testing ablation catheters. The fixture includes a base, an electrode mounting component, and a clamping assembly. The base has at least two spaced-apart probe contacts, which are insulated from each other and electrically connected to a megohmmeter. Both the electrode mounting component and the clamping assembly are located on the first surface of the base. The electrode mounting component has a receiving cavity on its side away from the base to accommodate the ablation catheter. The electrode mounting component also has at least two spaced-apart electrode contacts, which are insulated from each other. Each electrode contact is electrically connected to a probe contact, and each electrode contact can be electrically connected to an electrode of the ablation catheter. When the clamping assembly is closed, the ablation catheter is fixed to the electrode mounting component. This structure improves the accuracy and safety of insulation testing for ablation catheters.

[0004] This insulation testing fixture uses an electrode-to-contact head as an intermediate connector between the probe-to-contact head and the ablation catheter electrode, enabling testing after electrical connection between the probe and the ablation catheter electrode. While this improves testing accuracy, the ablation catheters require one-to-one connection, resulting in insufficient testing efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide an electrical appliance insulation testing device. By setting up a wire reel and setting up a positioning structure in the wire reel that can automatically position the cable after the cable is inserted, after manually tightening the clamp, the probe of the insulation tester is inserted into the wire groove of the wire reel at an adaptive angle and contacts the cable terminal in the wire groove, thereby achieving rapid testing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electrical appliance insulation testing device, comprising a base and a clamp, wherein the base is fixed to one end of the clamp by screws, a cable reel is provided inside the base, a positioning structure for quick positioning of the cable is provided inside the cable reel, an insulation detector is provided above the base, the insulation detector is fixedly connected to the clamp by screws, a mounting plate is provided at the bottom of the insulation detector, and a probe for electrical connection with the insulation detector and an adjustment structure for easy adaptive angle insertion of the probe into the cable reel are provided below the mounting plate;

[0007] The adjustment structure includes a movable block, the probe is fixed to the bottom of the movable block, the lower surface of the mounting plate is provided with a movable groove, the top of the movable block is fixed with a shaft, the two ends of the shaft are rotatably connected to the inner wall of the movable groove, and a return spring is installed between the inner wall of the movable groove and the movable block.

[0008] Preferably, the cable reel includes a reel body and a cable groove, the cable groove being formed on the upper surface of the reel body, and a platform for supporting the cable terminals being fixed inside the cable groove;

[0009] The cross-section of the groove is semi-circular, and there are several grooves arranged in a linear pattern.

[0010] Preferably, a pull ring is fixed to one end of the disc body, and a screw is threadedly connected to one side of the base, the screw passing through the base and threadedly connected to the disc body.

[0011] Preferably, the positioning structure includes a clamping block and a positioning spring. A through hole for cable insertion is provided on one side of the coil. A groove is provided on the inner wall of the through hole. The positioning spring is fixed in the groove. The clamping block is fixed to one end of the positioning spring.

[0012] The through holes are provided in a number of ways, and each through hole has two sets of clamping blocks, with one side of the clamping block being arc-shaped.

[0013] Preferably, the clamp includes a first rod and a second rod. A rotating block is fixed to the outer wall of both the first rod and the second rod. A rotating rod is fixed to one side of the rotating block on the outer wall of the first rod. The rotating rod is rotatably connected to the second rod. Mounting blocks are fixed to the outside of both the first rod and the second rod. A first spring is installed between the two mounting blocks.

[0014] Preferably, the clamp further includes a first clamp and a second clamp, the base is fixed to the upper surface of the first clamp by screws, the mounting plate is fixed to the lower surface of the second clamp by screws, and the insulation detector is fixed above the second clamp by screws.

[0015] Preferably, the top of the insulation tester is equipped with a control display screen and control buttons, and the control display screen, control buttons and probe are all electrically connected to the main control board of the insulation tester.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model simplifies the opening and closing operation by setting up a clamping structure. The reset function of the first spring in the clamping structure allows the coil to be fixed and released with a single press. The pull ring on one side of the coil is designed to cooperate with the screw, which facilitates quick replacement of coils that are compatible with different specifications of cables, reducing the complexity of operation and shortening the preparation time.

[0018] 2. Multiple linearly arranged semi-circular grooves on the reel can simultaneously hold multiple cables to be tested. Combined with the automatic clamping function of two sets of arc-shaped clamping blocks and positioning springs in the positioning structure, the cables can be quickly positioned and fixed after insertion, improving the efficiency of batch testing and avoiding the tedious traditional one-to-one alignment operation. Attached Figure Description

[0019] Figure 1 This is an isometric drawing of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the spool of this utility model;

[0021] Figure 3 This is a schematic diagram showing the position of the probe of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the clamp of this utility model;

[0023] Figure 5 This is a schematic diagram of the positioning structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the adjusting structure of this utility model;

[0025] Figure 7 This is a structural schematic diagram of the cross-section of the clamping block of this utility model.

[0026] In the diagram: 1. Base; 2. Clamp; 3. Wire reel; 4. Positioning structure; 5. Insulation tester; 6. Mounting plate; 7. Probe; 8. Adjustment structure; 801. Movable block; 802. Movable groove; 803. Shaft; 804. Return spring; 301. Disc body; 302. Wire groove; 303. Platform; 304. Pull ring; 305. Screw; 401. Tightening block; 402. Positioning spring; 403. Through hole; 404. Groove; 201. First rod; 202. Second rod; 203. Rotating block; 204. Rotating rod; 205. Mounting block; 206. First spring; 207. First chuck; 208. Second chuck; 501. Control display screen; 502. Control button. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1-7 This utility model provides a technical solution: an electrical appliance insulation testing device, including a base 1 and a clamp 2. The base 1 is fixed to one end of the clamp 2 by screws. A cable reel 3 is provided inside the base 1 for placing cables. A positioning structure 4 for quick positioning of cables is provided inside the cable reel 3. An insulation detector 5 is provided above the base 1. The insulation detector 5 is fixedly connected to the clamp 2 by screws. A mounting plate 6 is provided at the bottom of the insulation detector 5. A probe 7 for electrical connection with the insulation detector 5 and an adjustment structure 8 for the probe 7 to adaptively insert into the cable reel 3 are provided below the mounting plate 6.

[0029] The reel 3 is threaded to the base 1 via a screw 305. Rotating the screw 305 will loosen the reel 301. The pull ring 304 is designed to facilitate manual pulling of the reel 3. After replacing the reel 3 with one that is compatible with different cable specifications, tighten the screw 305 to fix it, thus shortening the preparation time.

[0030] The insulation tester 5 integrates a control display screen 501, buttons, and a main control board. It is electrically connected to the cable through the probe 7. Its internal structure and test module are the same as those of the prior art: after the probe 7 contacts the cable, the main control board of the insulation tester 5 applies a test voltage and collects insulation resistance data through the probe 7. The data is displayed on the display screen 501 in real time, and the user sets or reads parameters through the buttons.

[0031] The adjustment structure 8 includes a movable block 801, the probe 7 is fixed to the bottom of the movable block 801, the lower surface of the mounting plate 6 is provided with a movable groove 802, the top of the movable block 801 is fixed with a shaft 803, the two ends of the shaft 803 are rotatably connected to the inner wall of the movable groove 802, and a return spring 804 is installed between the inner wall of the movable groove 802 and the movable block 801.

[0032] The probe 7 is rotatably connected to the movable slot 802 via the shaft 803. During testing, the resistance of the probe 7 in contact with the cable will push the movable block 801 to rotate around the shaft 803, automatically adjusting the angle of the probe 7 to ensure perpendicular contact with the cable surface and reduce contact resistance. The connecting wire between the probe 7 and the insulation tester 5 passes through the top of the movable block 801 and enters the cavity of the mounting plate 6, and is electrically connected to the insulation tester 5 through the wiring between the mounting plate 6 and the insulation tester 5.

[0033] The cable reel 3 includes a reel body 301 and a cable groove 302. The cable groove 302 is formed on the upper surface of the reel body 301, and a platform 303 for supporting the cable terminal is fixed inside the cable groove 302.

[0034] The cross-section of the groove 302 is semi-circular, and a plurality of grooves 302 are provided, which are arranged linearly.

[0035] The semi-circular design of the linearly arranged cable trays 302 can accommodate multiple cables at the same time. The platform 303 inside the cable trays 302 supports the cable terminals, ensuring uniform detection positions.

[0036] A pull ring 304 is fixed to one end of the disc body 301, and a screw 305 is threadedly connected to one side of the base 1. The screw 305 passes through the base 1 and is threadedly connected to the disc body 301.

[0037] The positioning structure 4 includes a clamping block 401 and a positioning spring 402. A through hole 403 for inserting a cable is provided on one side of the cable reel 3. A groove 404 is provided on the inner wall of the through hole 403. The positioning spring 402 is fixed in the groove 404. The clamping block 401 is fixed to one end of the positioning spring 402.

[0038] When the cable is inserted into the through hole 403, the arc-shaped clamping blocks 401 on both sides are squeezed and retract into the groove 404, compressing the positioning spring 402. The reaction force of the positioning spring 402 pushes the arc-shaped surface of the clamping block 401 to fit against the outer wall of the cable, achieving self-adaptive clamping. The coordinated action of multiple sets of clamping blocks 401 prevents cable misalignment, eliminates the need for individual cable alignment, and improves batch inspection efficiency.

[0039] The through holes 403 are provided in a plurality of manner, and each through hole 403 has two sets of clamping blocks 401, one side of which is arc-shaped.

[0040] The clamp 2 includes a first rod 201 and a second rod 202. A rotating block 203 is fixed to the outer wall of both the first rod 201 and the second rod 202. A rotating rod 204 is fixed to one side of the rotating block 203 on the outer wall of the first rod 201. The rotating rod 204 is rotatably connected to the second rod 202. An mounting block 205 is fixed to the outside of both the first rod 201 and the second rod 202. A first spring 206 is installed between the two mounting blocks 205.

[0041] The clamp 2 also includes a first clamp 207 and a second clamp 208. The base 1 is fixed to the upper surface of the first clamp 207 by screws. The mounting plate 6 is fixed to the lower surface of the second clamp 208 by screws. The insulation detector 5 is fixed above the second clamp 208 by screws.

[0042] The clamp 2 consists of a first rod 201, a second rod 202, a rotating block 203, a rotating rod 204, and a first spring 206. The first spring 206 is installed between the two mounting blocks 205 of the clamp 2. Under normal conditions, the restoring force of the first spring 206 keeps the first clamp 207 and the second clamp 208 closed. When the clamp 2 is pressed, the rotating rod 204 drives the two rods to rotate around the rotating block 203, compressing the first spring 206. After releasing the pressure, the first spring 206 returns to its original position, and the clamp 2 automatically closes, realizing the one-time pressing and fixing and releasing of the spool 3.

[0043] The top of the insulation tester 5 is equipped with a control display screen 501 and a control button 502. The control display screen 501, the control button 502, and the probe 7 are all electrically connected to the main control board of the insulation tester 5.

[0044] When using, select the appropriate reel 3 according to the diameter of the cable to be tested, rotate the screw 305 on the side of the base 1 to loosen the current reel 3, pull out the old reel 3 through the pull ring 304 at one end of the reel 3, insert the new reel 3 into the base 1, tighten the screw 305 to fix the reel 3.

[0045] Multiple cables to be tested are inserted into the through holes 403 on the side of the cable reel 3 in sequence. The outer wall of the cable is pressed against the arc-shaped clamping block 401. After the clamping block 401 compresses the positioning spring 402, it rebounds and automatically clamps the cable. The terminal is placed in the semi-circular wire groove 302 on the cable reel 3, ensuring that the cable terminal abuts against the platform 303 inside the wire groove 302.

[0046] Press the first clamp 207 and the second clamp 208 of the clamp 2, and automatically close them by the reset force of the first spring 206, fixing the base 1 and the insulation tester 5 together. The probe 7 is connected to the shaft 803 through the movable block 801. When the cable is inserted, the contact resistance of the probe 7 will push the movable block 801 to rotate around the shaft. The reset spring 804 assists the movable block 801 to be inserted into the wire groove 302. The probe 7 adapts to the surface of the cable.

[0047] Turn on the power of the insulation tester 5, set the test voltage parameters and resistance threshold through the control button 502, press the test button, and the probe 7 applies the test voltage to the cable. The insulation tester 5 collects the insulation resistance data through the main control board, and the test results are displayed on the control display screen 501 in real time. If the insulation of a certain cable is unqualified, the screen will mark the corresponding cable tray 302 number, and the test is completed.

[0048] This invention features a clamp 2 structure that allows for the fixing and releasing of the cable reel 3 with a single press. The cable reel 3 can hold multiple cables to be tested simultaneously, and positioning is achieved simply by inserting the cable. Compared to the traditional one-to-one alignment operation of traditional testing instruments, this invention improves the testing effect.

[0049] 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. An electrical appliance insulation detection device, characterized by: Includes a base (1) and a clamp (2). The base (1) is fixed to one end of the clamp (2) by screws. A cable reel (3) for placing cables is provided inside the base (1). A positioning structure (4) for quick positioning of cables is provided inside the cable reel (3). An insulation detector (5) is provided above the base (1). The insulation detector (5) is fixedly connected to the clamp (2) by screws. A mounting plate (6) is provided at the bottom of the insulation detector (5). A probe (7) for electrical connection with the insulation detector (5) and an adjustment structure (8) for the probe (7) to be inserted into the cable reel (3) at an adaptive angle are provided below the mounting plate (6). The adjustment structure (8) includes a movable block (801), the probe (7) is fixed at the bottom of the movable block (801), the lower surface of the mounting plate (6) is provided with a movable groove (802), the top of the movable block (801) is fixed with a shaft (803), the two ends of the shaft (803) are rotatably connected to the inner wall of the movable groove (802), and a return spring (804) is installed between the inner wall of the movable groove (802) and the movable block (801).

2. The electrical appliance insulation testing device according to claim 1, characterized in that: The cable reel (3) includes a reel body (301) and a cable groove (302). The cable groove (302) is formed on the upper surface of the reel body (301), and a platform (303) for supporting the cable terminal is fixed inside the cable groove (302). The cross-section of the groove (302) is semi-circular, and there are several grooves (302) arranged in a linear manner.

3. The electrical appliance insulation testing device according to claim 2, characterized in that: One end of the disc (301) is fixed with a pull ring (304), and a screw (305) is threadedly connected to one side of the base (1). The screw (305) passes through the base (1) and is threadedly connected to the disc (301).

4. The electrical appliance insulation testing device according to claim 3, characterized in that: The positioning structure (4) includes a clamping block (401) and a positioning spring (402). A through hole (403) for inserting a cable is provided on one side of the coil (3). A groove (404) is provided on the inner wall of the through hole (403). The positioning spring (402) is fixed in the groove (404). The clamping block (401) is fixed at one end of the positioning spring (402). The through holes (403) are provided in a plurality of manner, and each through hole (403) has two sets of clamping blocks (401), one side of which is arc-shaped.

5. An electrical appliance insulation testing device according to claim 4, characterized in that: The clamp (2) includes a first rod (201) and a second rod (202). A rotating block (203) is fixed to the outer wall of both the first rod (201) and the second rod (202). A rotating rod (204) is fixed to one side of the rotating block (203) on the outer wall of the first rod (201). The rotating rod (204) is rotatably connected to the second rod (202). An mounting block (205) is fixed to the outside of both the first rod (201) and the second rod (202). A first spring (206) is installed between the two mounting blocks (205).

6. An electrical appliance insulation testing device according to claim 5, characterized in that: The clamp (2) also includes a first clamp (207) and a second clamp (208). The base (1) is fixed to the upper surface of the first clamp (207) by screws. The mounting plate (6) is fixed to the lower surface of the second clamp (208) by screws. The insulation detector (5) is fixed above the second clamp (208) by screws.

7. An electrical appliance insulation testing device according to claim 6, characterized in that: The top of the insulation tester (5) is equipped with a control display screen (501) and a control button (502). The control display screen (501), the control button (502) and the probe (7) are all electrically connected to the main control board of the insulation tester (5).

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