Three-phase loop resistance automatic test device

Abstract

The utility model relates to three -phase loop resistance experiment technical field discloses a kind of three -phase loop resistance automation test device, including machine body, the control screen is installed in the machine body top, the micro printer is installed in the machine body top, the heat dissipation fin is installed in the machine body front side, the protective assembly is arranged in the machine body outside, the machine body left side is provided with the bunching component;The protective assembly includes two cases, two The case is fixedly connected in the machine body outside, two The clockwork is fixedly connected in the case inside, the rotating rod is fixedly connected in the clockwork inside. In the utility model, by setting cover, case, rotating rod, clockwork, limiting block, fixed plate, bolt, baffle and spring one, to realize the automatic opening and closing of cover, and setting cover can effectively protect detection structure, prevent detection structure from being damaged, ensure that test can be smoothly developed.

Description

Technical Field

[0001] This utility model relates to the field of three-phase loop resistance testing technology, and in particular to an automated three-phase loop resistance testing device. Background Technology

[0002] The contact resistance of three-phase circuits (such as the conductive circuits of electrical equipment like transformers, circuit breakers, and busbars) directly affects the safe operation of the equipment. If the contact resistance is too high, it can cause severe overheating at the joints, and even lead to equipment failure, power outages, or fire hazards. Therefore, accurately detecting the circuit resistance is a key aspect of power equipment maintenance.

[0003] Currently, the detection components of traditional testing devices are often exposed. During on-site handling and transport, the exposed structure is easily damaged. This damage not only leads to inaccurate test data and prevents the entire device from operating normally, forcing the test to be interrupted, but also increases maintenance costs. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an automated three-phase circuit resistance testing device, which aims to improve the problems of exposed testing structures and inability to retract cables in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automated three-phase circuit resistance testing device includes a body, a control panel mounted on the top of the body, a micro printer mounted on the top of the body, heat dissipation fins mounted on the front of the body, a protective component mounted on the outer side of the body, and a converging component mounted on the left side of the body.

[0007] The protective assembly includes two housings, both of which are fixedly connected to the outside of the body. A mainspring is fixedly connected inside each housing. A rotating rod is fixedly connected to the inner side of each mainspring. A cover plate is fixedly connected to the outer side of the rotating rod. A limit block is fixedly connected to the side of the cover plate away from the rotating rod. A fixing block is fixedly connected to the outside of the body. A pin is slidably connected inside the fixing block. A baffle is fixedly connected to the outer periphery of the pin. A spring is fixedly connected to the outer side of the baffle. The end of the spring away from the baffle is fixedly connected to the inner wall of the fixing block.

[0008] As a further description of the above technical solution:

[0009] The convergence assembly includes a support plate 1, an electric push rod fixedly connected to the top of the support plate 1, a movable plate fixedly connected to the output end of the electric push rod, a slide rod slidably connected to the middle of the movable plate, a spring 2 sleeved on the outer periphery of the slide rod, a support plate 2 fixedly connected to the end of the slide rod away from the movable plate, a plurality of clamping plates 1 fixedly connected to the side of the support plate 2 away from the slide rod, a fixed plate fixedly connected to the outer side of the body, a plurality of clamping plates 2 fixedly connected to the outer side of the fixed plate, the clamping plates 1 and the clamping plates 2 abutting against each other, and a guide rod fixedly connected to the outer side of the fixed plate;

[0010] As a further description of the above technical solution:

[0011] The rotating rod is rotatably connected inside the two housings, and the cover plate is slidably connected between the two housings on the outside.

[0012] As a further description of the above technical solution:

[0013] A lever is fixedly connected to the outer periphery of the pin, and the outer side of the lever is slidably connected inside the fixed block;

[0014] As a further description of the above technical solution:

[0015] The end of the pin near the lever is slidably connected inside the limiting block, and the outer periphery of the baffle is slidably connected inside the fixing block;

[0016] As a further description of the above technical solution:

[0017] One end of the second spring is fixedly connected to the side of the second support plate away from the first clamping plate, and the other end of the second spring is fixedly connected to the side of the movable plate away from the electric push rod.

[0018] As a further description of the above technical solution:

[0019] The movable plate is slidably connected to the outer wall of the machine body on the outside, and slidably connected to the outer periphery of the guide rod on the inside;

[0020] As a further description of the above technical solution:

[0021] Two handles are fixedly connected to the top of the machine body, and rubber pads are fixedly connected to the four corners of the bottom of the machine body.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by pulling the pin, the baffle moves and compresses the first spring. After the pin disengages from the limiting block, the compressed spring drives the rotating rod to rotate, thereby automatically opening the cover plate, which facilitates the test. After the test, the cover plate is manually rotated to the closed position, and the pin is pulled again. After it is released, the compressed first spring pushes the baffle, thereby resetting the pin and locking it into the limiting block, thus completing the fixation of the cover plate. By setting the cover plate, the risk of equipment damage is significantly reduced, thereby ensuring that the test can be carried out smoothly.

[0024] 2. In this utility model, the movable plate and the connected sliding rod are moved by the electric push rod, which in turn drives the second support plate and the first clamping plate to move synchronously. When the first clamping plate and the second clamping plate come into contact, they clamp the cable and then complete the winding operation, thereby avoiding cable tangling. At the same time, the second spring set between the first clamping plate and the sliding rod is squeezed and deformed when the first clamping plate comes into contact with the cable, which effectively avoids physical damage to the cable due to excessive compression. While achieving efficient winding, the integrity and safety of the cable are ensured. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of an automated three-phase circuit resistance testing device proposed in this utility model;

[0026] Figure 2 This is a structural cross-sectional view of the housing of an automated three-phase circuit resistance testing device proposed in this utility model;

[0027] Figure 3 This is an enlarged view of point A in the automated three-phase circuit resistance testing device proposed in this utility model;

[0028] Figure 4 This is a structural cross-sectional view of the limiting block and fixing block of the three-phase circuit resistance automated testing device proposed in this utility model;

[0029] Figure 5 This is a three-dimensional schematic diagram of the convergence component of an automated three-phase circuit resistance testing device proposed in this utility model.

[0030] Legend:

[0031] 1. Body; 2. Heat dissipation fins; 3. Rubber pad; 4. Handle; 5. Cover plate; 6. Control panel; 7. Mini printer; 8. Housing; 9. Limiting block; 10. Fixing block; 11. Paddle; 12. Rotating rod; 13. Spring; 14. Pin; 15. Baffle; 16. Spring 1; 17. Support plate 1; 18. Electric push rod; 19. Movable plate; 20. Slide rod; 21. Spring 2; 22. Support plate 2; 23. Clamping plate 1; 24. Fixing plate; 25. Clamping plate 2; 26. Guide rod. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1-4 This utility model provides an embodiment of an automated three-phase circuit resistance testing device, comprising a body 1, a control screen 6 mounted on the top of the body 1, allowing operators to test cables by touching the control screen 6, a micro printer 7 mounted on the top of the body 1 to print out test data, facilitating on-site operators to obtain intuitive test results immediately, a heat dissipation fin 2 mounted on the front of the body 1, which absorbs and dissipates heat during operation, preventing overheating and damage to the body 1, a protective component on the outside of the body 1 to protect the testing structure from damage, and a cable gathering component on the left side of the body 1 to gather cables and prevent tangling. This device features automated master-slave online control, reducing communication between test personnel; each test requires only one confirmation, solving the DC resistance testing problem for multi-segment GIS, long cables, long busbars, and other equipment, optimizing the testing method, and improving testing efficiency.

[0034] The protective assembly includes two housings 8, both of which are fixedly connected to the outside of the body 1. A mainspring 13 is fixedly connected inside each housing 8. A rotating rod 12 is fixedly connected to the inner side of each mainspring 13. A cover plate 5 is fixedly connected to the outer side of the rotating rod 12. A limit block 9 is fixedly connected to the side of the cover plate 5 away from the rotating rod 12. A fixing block 10 is fixedly connected to the outside of the body 1. A pin 14 is slidably connected inside the fixing block 10. A baffle 15 is fixedly connected to the outer periphery of the pin 14. A spring 16 is fixedly connected to the outer side of the baffle 15. The end of the spring 16 away from the baffle 15 is fixedly connected to the inner wall of the fixing block 10. Initially, the cover plate 5 is in the closed state and the mainspring 13 is in the stretched state. The cover plate 5 is used to protect the internal structure from damage. When needed... When the cover plate 5 is opened, the pin 14 is pulled, causing it to slide inside the fixing block 10 and the limiting block 9. During the sliding process, the baffle 15 moves synchronously with the pin 14, thereby compressing the spring 16 and storing elastic potential energy. When the pin 14 disengages from the limiting block 9, the compressed spring 13 generates a force to restore its original shape. This force acts on the outside of the rotating rod 12, thereby driving the rotating rod 12 to rotate and automatically opening the cover plate 5. After the detection is completed, the cover plate 5 is rotated to store energy in the spring 13, and the pin 14 is pulled, causing the cover plate 5 to rotate to the closed position. At this time, the pin 14 is released, and the compressed spring 16 pushes the baffle 15 in the opposite direction, thereby pushing the pin 14 to slide into the limiting block 9, thus completing the fixing.

[0035] Reference Figure 1 and Figure 5 The convergence assembly includes a support plate 17, with an electric push rod 18 fixedly connected to the top of the support plate 17. The support plate 17 supports the electric push rod 18, ensuring its stable operation. A movable plate 19 is fixedly connected to the output end of the electric push rod 18. When the electric push rod 18 is activated, its output end drives the movable plate 19 to slide stably. A slide rod 20 is slidably connected to the middle of the movable plate 19. A spring 21 is sleeved around the outer periphery of the slide rod 20. A support plate 22 is fixedly connected to the end of the slide rod 20 away from the movable plate 19. Multiple clamping plates 23 are fixedly connected to the side of the support plate 22 away from the slide rod 20. The outer side of the body 1 is fixedly... A fixed plate 24 is fixedly connected, and multiple clamping plates 25 are fixedly connected to the outside of the fixed plate 24. When the movable plate 19 moves, it will drive the slide rod 20 and the support plate 22 to move synchronously. At this time, the clamping plate 23 will move closer to the clamping plate 25. When the two come into contact, the cable can be bundled to prevent the cable from getting tangled and affecting the inspection structure. By setting the spring 21, the pressure on the cable can be reduced, thereby avoiding excessive squeezing between the clamping plate 23 and the clamping plate 25 and preventing the cable from being damaged. The clamping plate 23 and the clamping plate 25 abut against each other. A guide rod 26 is fixedly connected to the outside of the fixed plate 24.

[0036] Reference Figure 2 and Figure 3The rotating rod 12 is rotatably connected inside the two housings 8, and the cover plate 5 is slidably connected between the two housings 8. When the cover plate 5 needs to be opened, it contacts the restriction of the cover plate 5. At this time, the rotating rod 12 will be driven by external force, which will drive the cover plate 5 to rotate, thereby opening the cover plate 5. When the cover plate 5 needs to be closed, the cover plate 5 is rotated, causing the rotating rod 12 to rotate. Then, the cover plate 5 is fixed, thereby completing the closure of the cover plate 5.

[0037] Reference Figure 4 A lever 11 is fixedly connected to the outer periphery of the pin 14. The lever 11 is slidably connected to the inside of the fixing block 10. By moving the lever 11, the pin 14 can be moved quickly, which makes it convenient for the operator to operate the pin 14.

[0038] Reference Figure 4 The end of the pin 14 near the lever 11 is slidably connected to the inside of the limiting block 9, and the outer periphery of the baffle 15 is slidably connected to the inside of the fixed block 10. Hold the lever 11 and make the lever 11 drive the pin 14 to move, so that the pin 14 slowly slides out of the limiting block 9. During the sliding of the pin 14, the baffle 15 will be driven to slide inside the fixed block 10 at the same time.

[0039] Reference Figure 5 One end of spring 21 is fixedly connected to the side of support plate 22 away from clamping plate 23, and the other end of spring 21 is fixedly connected to the side of movable plate 19 away from electric push rod 18. When movable plate 19 is stationary, spring 21 will support support plate 22, thereby ensuring that clamping plate 23 will not move easily.

[0040] Reference Figure 1 and Figure 5 The movable plate 19 is slidably connected to the outer wall of the body 1 on the outside, and slidably connected to the outer periphery of the guide rod 26 on the inside. By setting the guide rod 26, the sliding trajectory of the movable plate 19 can be limited, ensuring that the movable plate 19 slides stably along the outer wall of the body 1.

[0041] Reference Figure 1 Two handles 4 are fixedly connected to the top of the body 1. By setting the handles 4, the body 1 can be moved quickly and easily. Rubber pads 3 are fixedly connected to the four corners of the bottom of the body 1. By setting the rubber pads 3, the body 1 can be protected and prevent damage to its body due to collision.

[0042] Working principle: Initially, the cover plate 5 is located directly above the body 1, and the spring 13 is in a compressed state. When it is necessary to open the cover plate 5, pull the pin 14, which will cause the pin 14 to move the baffle 15 and compress the spring 16. When the pin 14 slides away from the limit block 9, the compressed spring 13 will drive the rotating rod 12 to rotate, which will in turn drive the cover plate 5 to rotate synchronously with the rotating rod 12. At this time, the cover plate 5 will open automatically, so as to conduct the experiment. After the experiment is completed, rotate the cover plate 5 and pull the pin 14. When the cover plate 5 rotates to the position, release the pin 14. The spring 16 will push the baffle 15 in the opposite direction, which will push the pin 14 to reset and continue to slide into the limit block 9, thereby fixing the cover plate 5.

[0043] When it is necessary to bundle the experimental cables, the electric push rod 18 is activated, causing its output end to drive the movable plate 19 to move, which in turn drives the slide rod 20 to move. When the slide rod 20 moves, it will drive the support plate 22 and the clamping plate 23 to move synchronously. A clamping plate 25 is also provided. When the clamping plate 23 contacts the clamping plate 25, the cable can be bundled between the clamping plate 23 and the clamping plate 25, thereby achieving cable bundling. A spring 21 is also provided. When the clamping plate 23 contacts the cable, the clamping plate 23 will squeeze the spring 21, thereby avoiding excessive compression of the cable and damage to the cable.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A three-phase loop resistance automated testing device comprising a machine body (1), characterized in that: The top of the body (1) is equipped with a control panel (6), the top of the body (1) is equipped with a micro printer (7), the front of the body (1) is equipped with heat dissipation fins (2), the outside of the body (1) is equipped with a protective component, and the left side of the body (1) is equipped with a gathering component. The protective assembly includes two housings (8), both housings (8) are fixedly connected to the outside of the body (1), and both housings (8) are fixedly connected to a spring (13). A rotating rod (12) is fixedly connected to the inside of the two springs (13). A cover plate (5) is fixedly connected to the outside of the rotating rod (12). A limit block (9) is fixedly connected to the side of the cover plate (5) away from the rotating rod (12). A fixing block (10) is fixedly connected to the outside of the body (1). A pin (14) is slidably connected inside the fixing block (10). A baffle (15) is fixedly connected to the outer periphery of the pin (14). A spring (16) is fixedly connected to the outside of the baffle (15). The end of the spring (16) away from the baffle (15) is fixedly connected to the inner wall of the fixing block (10).

2. A three-phase loop resistance automated testing device according to claim 1, characterized in that: The convergence assembly includes a support plate (17), an electric push rod (18) is fixedly connected to the top of the support plate (17), a movable plate (19) is fixedly connected to the output end of the electric push rod (18), a slide rod (20) is slidably connected to the middle of the movable plate (19), a spring (21) is sleeved on the outer periphery of the slide rod (20), a support plate (22) is fixedly connected to the end of the slide rod (20) away from the movable plate (19), a plurality of clamping plates (23) are fixedly connected to the side of the support plate (22) away from the slide rod (20), a fixed plate (24) is fixedly connected to the outside of the body (1), a plurality of clamping plates (25) are fixedly connected to the outside of the fixed plate (24), the clamping plates (23) and the clamping plates (25) abut against each other, and a guide rod (26) is fixedly connected to the outside of the fixed plate (24).

3. A three-phase loop resistance automated test device according to claim 1, characterized in that: The rotating rod (12) is rotatably connected inside the two housings (8), and the cover plate (5) is slidably connected between the two housings (8).

4. The three-phase loop resistance automated test device according to claim 1, wherein: The pin (14) is fixedly connected to a lever (11) on its outer periphery, and the lever (11) is slidably connected to the inside of the fixing block (10) on its outer side.

5. A three-phase loop resistance automated test apparatus according to claim 4, characterized by: The pin (14) is slidably connected to the inside of the limiting block (9) at one end near the lever (11), and the baffle (15) is slidably connected to the inside of the fixing block (10) on the outer periphery.

6. The automated three-phase circuit resistance testing device according to claim 2, characterized in that: One end of the second spring (21) is fixedly connected to the side of the second support plate (22) away from the first clamping plate (23), and the other end of the second spring (21) is fixedly connected to the side of the movable plate (19) away from the electric push rod (18).

7. A three-phase loop resistance automated test apparatus according to claim 2, characterized by: The movable plate (19) is slidably connected to the outer wall of the body (1) on the outside, and the movable plate (19) is slidably connected to the outer periphery of the guide rod (26) on the inside.

8. The automated three-phase circuit resistance testing device according to claim 1, characterized in that: Two handles (4) are fixedly connected to the top of the body (1), and rubber pads (3) are fixedly connected to the four corners of the bottom of the body (1).

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