Alternating-current and direct-current light high-voltage test transformer

Abstract

The utility model relates to the technical field of transformers, and discloses an AC / DC light high-voltage test transformer, which comprises a transformer body and a clamping mechanism, a lifting mechanism is arranged at the lower end of the inner wall of the transformer body, the clamping mechanism is positioned at the upper end of the transformer body, the lifting mechanism comprises two worms, and the worms are connected with the clamping mechanism. Cavities are formed in the lower ends of the two ends of the inner wall of the transformer body, sliding grooves are formed in the two sides of each cavity, threaded rods are arranged on the inner walls of the other sides of the sliding grooves, the outer walls of the two threaded rods are sleeved with threaded sleeves, and sliding rods are arranged on the inner walls of one sides of the sliding grooves. When the transformer body is moved, the worm, the worm gear and the threaded rod are rotated to be linked, so that the threaded sleeve and the sliding ring move, then the connecting plate and the universal wheel are pushed to move outwards, after the inserting rod is pulled to the position of the universal wheel, the connecting block is loosened, the inserting rod is fixed to achieve stable connection, shaking in the moving process is prevented, and the universal wheel provides multi-direction moving convenience.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to an AC / DC lightweight high-voltage test transformer. Background Technology

[0002] A high-voltage test transformer is a transformer specifically designed for high-voltage testing of electrical equipment. Its main function is to test the insulation performance of electrical equipment such as insulating materials, high-voltage electrical appliances, cables, and transformers in the laboratory or on-site, to ensure that these devices can withstand the high voltage of the system without breakdown during normal operation. AC / DC light-duty high-voltage test transformers can provide AC and DC high voltage for testing the insulation performance of electrical equipment.

[0003] Traditional high-voltage test transformers typically use fixed wheels, which are prone to shaking when moved due to vibration or loose load. They are also inconvenient to store. Furthermore, the connection method is to fix them by squeezing the end caps, which may cause the wiring to come loose when subjected to external pulling or equipment movement, posing a risk of electric shock or short circuit.

[0004] Therefore, those skilled in the art have provided an AC / DC lightweight high-voltage test transformer to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a lightweight AC / DC high-voltage test transformer. When moving the transformer body, the worm gear, worm wheel, and threaded rod are rotated in tandem, causing the threaded sleeve and slip ring to move. This, in turn, pushes the connecting plate and caster wheel outward. After pulling the plug rod until the caster wheel is in place, the connecting block is released, and the plug rod is fixed to ensure a stable connection and prevent shaking during movement. The caster wheel provides convenient multi-directional movement.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A lightweight AC / DC high-voltage test transformer includes a transformer body and a locking mechanism. A lifting mechanism is located at the lower end of the inner wall of the transformer body. The locking mechanism is located at the upper end of the transformer body. The lifting mechanism includes two worm gears. Cavities are formed at the lower ends of both ends of the inner wall of the transformer body. Slide grooves are formed on both sides of each cavity. Threaded rods are provided on the inner wall of the other side of each slide groove. Threaded sleeves are fitted onto the outer walls of both threaded rods. Slide rods are provided on one side of the inner wall of each slide groove. Slip rings are slidably connected to the outer walls of both slide rods. Sliding blocks are fixedly connected to the sides of both threaded sleeves and two slip rings near the center of the transformer body. Connecting plates are fixedly connected to adjacent sliding blocks. Worm gears are fixedly connected to the upper ends of the outer walls of both threaded rods. Inserted rods are provided on the inner walls of both connecting plates. Connecting blocks are fixedly connected to the ends of both inserted rods away from the center of the transformer body. First damping rods are fixedly connected to both sides of the ends of both connecting blocks near the center of the transformer body. First springs are fitted onto the outer walls of multiple first damping rods.

[0008] With the above technical solution, when moving the transformer body, rotating the worm gear causes the worm wheel and threaded rod to rotate accordingly, and the threaded sleeve and slip ring move accordingly, driving the connecting plate and caster wheel to move outwards from the transformer. Then, pulling the plug rod until the caster wheel is completely moved to the external position, releasing the connecting block, and inserting the plug rod through the connecting plate to ensure its stable fixation, thereby strengthening the connection between the caster wheel and the transformer body and preventing possible shaking of the transformer during movement. The caster wheel allows the transformer body to move in multiple directions, improving operational flexibility. When not in use, the wheels can be retracted for easy storage.

[0009] Furthermore, multiple outer shells are uniformly fixedly connected to the front of the upper end of the transformer body. Each of the upper front ends of the multiple outer shells is provided with a slot. Each of the two ends of the upper end of the multiple outer shells is fixedly connected with a second damping rod. Each of the outer walls of the multiple second damping rods is fitted with a second spring. Each of the upper ends of adjacent second damping rods is fixedly connected with a mounting block. Each of the lower ends of the multiple mounting blocks is fixedly connected with a connecting rod. Each of the outer walls of the multiple connecting rods is provided with a connecting ring. Each of the front ends of the multiple connecting rings is fixedly connected with a connecting piece. Each of the inner walls of the multiple outer shells is provided with a connecting block.

[0010] By using the above technical solution, the connecting rod is pulled away from the connecting block, and then the connecting ring is placed in the empty slot. Then the connecting rod is released, passes through the connecting ring, and fits against the connecting block. This can prevent the connecting ring from detaching from the connecting rod, thereby maintaining a stable current connection and preventing accidental circuit breaks.

[0011] Furthermore, both sides of the lower end of the two connecting plates are provided with casters;

[0012] Through the above technical solution, the caster wheel allows the equipment to move freely in multiple directions, increasing operational flexibility.

[0013] Furthermore, both worm gears mesh with worm wheels, and the other side of both worm gears penetrates the transformer body to the outside of the transformer body;

[0014] The above technical solutions improve the overall structural stability, and the worm gear penetrates the transformer body, making external maintenance and repair more convenient.

[0015] Furthermore, all of the aforementioned sliding blocks slide on the inner wall of the groove, and both of the aforementioned connecting plates slide on the inner wall of the cavity;

[0016] By using the above technical solutions, the coefficient of friction is reduced, the resistance during movement is lowered, making the movement smoother, maintaining stability during movement, and reducing shaking and instability.

[0017] Furthermore, both of the aforementioned plug rods penetrate the transformer body into the transformer body, and one end of each of the multiple first damping rods near the center of the transformer body is fixedly connected to the lower end of the transformer body.

[0018] The above technical solution provides additional support points for the transformer, enhances the stability of the overall structure, and reduces swaying during movement.

[0019] Furthermore, all of the aforementioned electrical connection rods penetrate the outer casing to the interior of the outer casing, and all of the aforementioned electrical connection rods slide on the inner wall of the slot;

[0020] The above technical solution allows for quick connection or disconnection of circuits via a sliding terminal rod, simplifying the operation process.

[0021] Furthermore, all of the aforementioned connecting rods are in contact with the connecting block;

[0022] The above technical solutions reduce poor contact caused by loosening between the junction pole and the junction block, improve the reliability of electrical connections, and maintain stable connections during equipment operation.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model proposes an AC / DC lightweight high-voltage test transformer. When moving the transformer body, rotating the worm gear causes the worm wheel and threaded rod to rotate, and the threaded sleeve and slip ring move accordingly, driving the connecting plate and universal wheels to move outwards from the transformer. Then, pulling the plug rod until the universal wheels are fully moved to the external position, releasing the connecting block, and inserting the plug rod through the connecting plate to ensure its stable fixation, thereby strengthening the connection between the universal wheels and the transformer body and preventing possible shaking of the transformer during movement. The universal wheels allow the transformer body to move in multiple directions, improving operational flexibility. When not in use, the wheels can be retracted for easy storage.

[0025] 2. The present invention proposes an AC / DC lightweight high-voltage test transformer. By pulling the connecting rod away from the connecting block, the connecting ring is placed in the empty slot. Then, the connecting rod is released, passing through the connecting ring and fitting against the connecting block. This can prevent the connecting ring from detaching from the connecting rod, thereby maintaining a stable current connection and preventing accidental circuit breaks. Attached Figure Description

[0026] Figure 1 This is an isometric view of an AC / DC lightweight high-voltage test transformer proposed in this utility model;

[0027] Figure 2 This is a structural diagram of an AC / DC lightweight high-voltage test transformer proposed in this utility model;

[0028] Figure 3 This is a partial structural diagram of an AC / DC lightweight high-voltage test transformer proposed in this utility model;

[0029] Figure 4 This is a partial orthogonal sectional view of an AC / DC lightweight high-voltage test transformer proposed in this utility model;

[0030] Figure 5 This is a partial view of an AC / DC lightweight high-voltage test transformer proposed in this utility model;

[0031] Figure 6 This is a partial side sectional view of an AC / DC lightweight high-voltage test transformer proposed in this utility model;

[0032] Figure 7 This is a partial structural schematic diagram of an AC / DC lightweight high-voltage test transformer proposed in this utility model;

[0033] Figure 8 for Figure 3 Enlarged view of point A in the middle.

[0034] Legend:

[0035] 1. Lifting mechanism; 101. Cavity; 102. Slide groove; 103. Threaded rod; 104. Threaded sleeve; 105. Slide rod; 106. Slip ring; 107. Sliding block; 108. Connecting plate; 109. Worm gear; 110. Worm; 111. Insert rod; 112. Connecting block; 113. First damping rod; 114. First spring;

[0036] 2. Engaging mechanism; 201. Outer shell; 202. Hollow slot; 203. Second damping rod; 204. Second spring; 205. Mounting block; 206. Connecting rod; 207. Connecting ring; 208. Connecting piece; 209. Connecting block; 3. Transformer body; 4. Casters. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a specific embodiment: an AC / DC lightweight high-voltage test transformer, including a transformer body 3 and a locking mechanism 2. A lifting mechanism 1 is provided at the lower end of the inner wall of the transformer body 3, and the locking mechanism 2 is located at the upper end of the transformer body 3. The lifting mechanism 1 includes two worm gears 110. Cavities 101 are opened at the lower ends of both ends of the inner wall of the transformer body 3. Slide grooves 102 are opened on both sides of the two cavities 101. Threaded rods 103 are provided on the inner wall of the other side of each slide groove 102. Threaded sleeves 104 are fitted onto the outer walls of both threaded rods 103. Slide rods 105 are provided on one side of the inner wall of each slide groove 102, and the outer walls of both slide rods 105 are slidably connected. A slip ring 106 is connected to the transformer body 3. Two threaded sleeves 104 and two slip rings 106 are fixedly connected to a sliding block 107 on one side near the center of the transformer body 3. A connecting plate 108 is fixedly connected to each adjacent sliding block 107. A worm gear 109 is fixedly connected to the upper end of the outer wall of the two threaded rods 103. An insert rod 111 is provided on the inner wall of the two connecting plates 108. A connecting block 112 is fixedly connected to one end of the two insert rods 111 away from the center of the transformer body 3. A first damping rod 113 is fixedly connected to both sides of the two connecting blocks 112 near the center of the transformer body 3. A first spring 114 is sleeved on the outer wall of the multiple first damping rods 113.

[0039] When moving the transformer body 3, the worm gear 110 is rotated, and the worm wheel 109 and threaded rod 103 rotate accordingly. The threaded sleeve 104 and slip ring 106 move accordingly, driving the connecting plate 108 and the caster wheel 4 to move outwards from the transformer. Then, the insertion rod 111 is pulled until the caster wheel 4 is completely moved to the external position. The connecting block 112 is released, and the insertion rod 111 is inserted through the connecting plate 108 to ensure its stable fixation. This strengthens the connection between the caster wheel 4 and the transformer body 3, preventing possible shaking of the transformer during movement. The caster wheel 4 allows the transformer body 3 to move in multiple directions, improving operational flexibility. When not in use, the wheels can be retracted for easy storage.

[0040] Reference Figure 5 , Figure 6 , Figure 7 and Figure 8 Multiple outer shells 201 are uniformly fixedly connected to the front of the upper end of the transformer body 3. Each outer shell 201 has a slot 202 at its upper front end. Second damping rods 203 are fixedly connected to both ends of the upper end of each outer shell 201. Second springs 204 are fitted onto the outer walls of each second damping rod 203. Mounting blocks 205 are fixedly connected to the upper ends of adjacent second damping rods 203. Connecting rods 206 are fixedly connected to the lower ends of each mounting block 205. Connecting rings 207 are provided on the outer walls of each connecting rod 206. Connecting plates are fixedly connected to the front ends of each connecting ring 207. 208. Multiple housings 201 have electrical contact blocks 209 on their inner walls. Pull the electrical contact rod 206 away from the electrical contact block 209, then place the electrical contact ring 207 in the empty slot 202. Then release the electrical contact rod 206, pass through the electrical contact ring 207 and fit against the electrical contact block 209. This can prevent the electrical contact ring 207 from detaching from the electrical contact rod 206, thereby maintaining a stable current connection and preventing accidental circuit breakage. Both sides of the lower end of the two connecting plates 108 are provided with casters 4. The casters 4 allow the equipment to move freely in multiple directions, increasing the flexibility of operation.

[0041] Both worm gears 110 mesh with worm wheels 109. The other side of each worm gear 110 penetrates the transformer body 3 to the outside, improving the overall structural stability. The penetration of the worm gears 110 into the transformer body 3 makes external maintenance and repair more convenient. Multiple sliding blocks 107 slide on the inner wall of the groove 102, and both connecting plates 108 slide on the inner wall of the cavity 101, reducing the coefficient of friction and resistance during movement, making movement smoother and maintaining stability during movement, reducing swaying and instability. Both insert rods 111 penetrate the transformer body 3 to its interior, and multiple first damping rods 113 are close to the transformer body. One end of the transformer body 3 is fixedly connected to the lower end of the transformer body 3, providing an additional support point for the transformer, enhancing the stability of the overall structure, and reducing swaying during movement. Multiple connecting rods 206 penetrate the outer shell 201 and extend into the interior of the outer shell 201. Multiple connecting rods 206 slide on the inner wall of the slot 202, allowing for quick connection or disconnection of the circuit by sliding the connecting rods 206, simplifying the operation process. Multiple connecting rods 206 are in contact with the connecting block 209, reducing poor contact caused by looseness between the connecting rods 206 and the connecting block 209, improving the reliability of the electrical connection, and maintaining a stable connection during equipment operation.

[0042] Working principle: When moving the transformer body 3, rotating the worm gear 110 causes the worm wheel 109 and threaded rod 103 to rotate accordingly. The threaded sleeve 104 and slip ring 106 then move, driving the connecting plate 108 and caster 4 to move outwards from the transformer. Subsequently, the insertion rod 111 is pulled until the caster 4 is fully moved to the external position. The connecting block 112 is then released, allowing the insertion rod 111 to pass through the connecting plate 108, ensuring its secure fixation. This strengthens the connection between the caster 4 and the transformer body 3. This stable connection provides… The universal wheels 4 effectively prevent the transformer from shaking during movement, allowing the transformer body 3 to move in multiple directions. When not in use, simply reverse the operation: pull the connecting rod 206 away from the connecting block 209, then place the connecting ring 207 in the empty slot 202, and then loosen the connecting rod 206, passing through the connecting ring 207 and fitting it against the connecting block 209. This prevents the connecting ring 207 from detaching from the connecting rod 206, thus maintaining a stable current connection and preventing accidental circuit breaks.

[0043] 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 specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific 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. An AC / DC light weight high voltage test transformer comprising a transformer body (3) and a clamping mechanism (2), characterized in that: The lower end of the inner wall of the transformer body (3) is provided with a lifting mechanism (1), and the clamping mechanism (2) is located at the upper end of the transformer body (3); The lifting mechanism (1) comprises two worms (110), the lower end of the inner wall of the transformer body (3) is provided with a cavity (101), the two sides of the cavity (101) are provided with a sliding groove (102), the other side of the sliding groove (102) is provided with a threaded rod (103), the outer wall of the threaded rod (103) is provided with a threaded sleeve (104), the inner wall of the sliding groove (102) is provided with a sliding rod (105), the outer wall of the sliding rod (105) is provided with a sliding ring (106), the side of the threaded sleeve (104) and the sliding ring (106) close to the center of the transformer body (3) is fixedly connected with a sliding block (107), the adjacent sliding blocks (107) are fixedly connected with a connecting plate (108), the upper end of the outer wall of the threaded rod (103) is fixedly connected with a worm wheel (109), the inner wall of the connecting plate (108) is provided with an insertion rod (111), one end of the insertion rod (111) away from the center of the transformer body (3) is fixedly connected with a connecting block (112), the two sides of the end of the connecting block (112) close to the center of the transformer body (3) are fixedly connected with a first damping rod (113), and the outer wall of the first damping rod (113) is provided with a first spring (114).

2. An AC / DC light weight high voltage test transformer according to claim 1, characterized in that: The front of the upper end of the transformer body (3) is uniformly fixedly connected with a plurality of housings (201), the upper part of the front end of the plurality of housings (201) is provided with a hollow groove (202), the two ends of the upper end of the plurality of housings (201) are fixedly connected with a second damping rod (203), the outer wall of the second damping rod (203) is provided with a second spring (204), the upper end of the adjacent second damping rod (203) is fixedly connected with a mounting block (205), the lower end of the plurality of mounting blocks (205) is fixedly connected with an electricity connecting rod (206), the outer wall of the electricity connecting rod (206) is provided with an electricity connecting ring (207), the front end of the electricity connecting ring (207) is fixedly connected with an electricity connecting piece (208), and the inner wall of the plurality of housings (201) is provided with an electricity connecting block (209).

3. An AC / DC light weight high voltage test transformer according to claim 1, characterized in that: The two sides of the lower end of the two connecting plates (108) are provided with universal wheels (4).

4. An AC / DC light weight high voltage test transformer according to claim 1, characterized in that: The two worms (110) are meshed with the worm wheels (109), and the other sides of the two worms (110) penetrate through the transformer body (3) to the outside of the transformer body (3).

5. An AC / DC light weight high voltage test transformer according to claim 1, characterized in that: The plurality of sliding blocks (107) slide in the inner wall of the sliding groove (102), and the two connecting plates (108) slide in the inner wall of the cavity (101).

6. An AC / DC light weight high voltage test transformer according to claim 1, characterized in that: The two insertion rods (111) penetrate through the transformer body (3) to the inside of the transformer body (3), and the end of the plurality of first damping rods (113) close to the center of the transformer body (3) is fixedly connected with the lower end of the transformer body (3).

7. An AC / DC light weight high voltage test transformer according to claim 2, characterized in that: The plurality of power receiving rods (206) all penetrate the shell (201) to the inside of the shell (201), and the plurality of power receiving rods (206) all slide on the inner wall of the hollow groove (202).

8. An AC / DC light weight high voltage test transformer according to claim 2, characterized in that: The plurality of power receiving rods (206) are all attached to the power receiving blocks (209).

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