Height-adjustable power transformer

Abstract

The invention provides a height-adjustable power transformer, and relates to the field of power equipment. The height-adjustable power transformer comprises a supporting base, four matching sleeves are fixedly connected to the upper side wall of the supporting base, locking sleeves are fixedly connected to the upper ends of the matching sleeves, a sliding leg is slidably connected to the interior of each matching sleeve, and the upper ends of the four sliding legs are fixedly connected with the same supporting top plate; a measuring circuit is installed in the matching sleeve and close to the bottom, and the output end of the measuring circuit is fixedly connected with two resistor strips. An electric power storage assembly, an electric push rod and a control box are installed on the upper side wall of the supporting base, and the output end of the electric push rod is fixedly connected with the lower side wall of the supporting top plate. According to the device, through cooperation of the electric push rod and the electromagnet block, the height of the power transformer body can be conveniently and rapidly adjusted, the installation and maintenance requirements of different occasions are met, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, in particular to a power transformer with adjustable height. Background Art

[0002] In power systems, power transformers (PTs), as essential electrical equipment, are widely used in energy metering, electrical protection, and electrical measurement. However, traditional PTs are typically fixed at a fixed height during installation and use, which can be inconvenient during installation and maintenance. For example, in some special situations, the PT's height may need to be adjusted based on equipment layout or maintenance requirements, a requirement that traditional fixed-height PTs cannot meet. Furthermore, when PTs need to be repaired or replaced, the fixed height design increases the difficulty and workload.

[0003] Therefore, in order to improve the applicability and convenience of the power transformer, it is particularly important to develop a power transformer that can easily adjust the height. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides a power transformer with adjustable height, which solves the problems raised by the above-mentioned background technology.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a power transformer with adjustable height, comprising a support base, wherein four matching sleeves are fixedly connected to the upper side wall of the support base, a locking sleeve is fixedly connected to the upper end of the matching sleeve, a sliding leg is slidably connected to the interior of each matching sleeve, and the upper ends of the four sliding legs are fixedly connected to the same support top plate, a measurement circuit is installed inside the matching sleeve and near the bottom, and the output end of the measurement circuit is fixedly connected to two resistance bars;

[0008] The upper side wall of the support base is installed with a storage component, an electric push rod and a control box. The output end of the electric push rod is fixedly connected to the lower side wall of the support top plate. The upper side wall of the support top plate is detachably connected to two fixed base frames. The upper side walls of the two fixed base frames are fixedly connected to the power transformer body.

[0009] Preferably, the lower side wall of the support base is fixedly connected with several support pads to improve the stability of the support base. The lower side wall of the support pad is provided with anti-slip grooves to improve the friction coefficient of the lower side wall of the support pad. The fixed base is detachably connected to the support top plate by fixing bolts, which facilitates the installation and disassembly of the power transformer body.

[0010] Preferably, the lower end of the sliding leg is fixedly connected to a connecting seat, the lower side wall of the connecting seat is fixedly connected to a connecting rod, and one side wall of the connecting rod is fixedly connected to a conductive contact piece, and the conductive contact piece cooperates with two resistor bars. The conductive contact piece will move up and down as the sliding leg slides up and down, thereby changing the resistance of the resistor bar connected to the circuit. The measuring circuit, the conductive contact piece and the resistor bar can form a measuring loop, so that the sliding distance of the sliding leg can be judged. The resistor bar is fixedly connected to the inner side wall of the matching sleeve to improve the stability of the resistor bar.

[0011] Preferably, two guide sleeves are provided inside the matching sleeve, and a sliding rod is slidably connected to the inside of each guide sleeve, and a friction pad is fixedly connected to a side wall of the sliding rod close to the sliding leg.

[0012] Preferably, two anti-slip pads are fixedly connected to the outer side wall of the sliding leg, and each of the anti-slip pads cooperates with a friction pad, so that the friction between the matching sleeve and the sliding leg is greatly improved, thereby preventing the matching sleeve from slipping.

[0013] Preferably, each of the guide sleeves is fixedly connected to an electromagnet block on one side wall close to the sliding leg, and the friction pad is fixedly connected to a matching iron ring on one side wall close to the electromagnet block. The matching iron ring cooperates with the electromagnet block. When the electromagnet block is energized, it can attract the matching iron ring, so that the friction pad no longer fits the anti-slip pad, and the height of the power transformer body can be adjusted.

[0014] Preferably, the outer side wall of each sliding rod is provided with a return spring, and after the electromagnet block is powered off, the return spring can push the friction pad to contact the anti-slip pad.

[0015] Preferably, the matching sleeve and the sliding leg are both made of aluminum alloy. Beneficial effects

[0016] The present invention provides a power transformer with adjustable height, which has the following beneficial effects:

[0017] 1. This device, through the cooperation of the electric push rod and the electromagnet block, can easily and quickly adjust the height of the power transformer body, meeting the installation and maintenance requirements of different occasions and improving work efficiency. This design not only makes the operation process easier, but also greatly shortens the time required for equipment adjustment, thus enabling rapid response to various needs in actual application and improving overall work efficiency.

[0018] 2. The device accurately measures the sliding distance of the sliding leg through a measurement circuit composed of a measuring circuit, conductive contacts, and resistor strips, thereby achieving precise control of the power transformer's height. This precise measurement mechanism ensures stable operation of the device at different heights, providing a strong guarantee for the reliable operation of the power system and reducing electrical connection problems and measurement errors that may be caused by height errors.

[0019] 3. The device ensures the stability of the equipment during adjustment and use through the support pads on the lower side wall of the support base and the anti-slip design between the sliding legs and the matching sleeves, prevents height changes caused by sliding, and can effectively avoid electrical failures caused by equipment shaking or displacement, thereby improving the adaptability and reliability of the equipment in complex environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a front schematic diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the interior of the telescopic leg of the present invention;

[0023] Figure 4 This is a schematic diagram of the interior of the locking sleeve of the present invention;

[0024] Figure 5 It is a side schematic diagram of the present invention;

[0025] Figure 6 It is a top view schematic diagram of the present invention.

[0026] Among them, 1. Support base; 101. Support pad; 2. Storage component; 3. Electric push rod; 4. Control box; 5. Matching sleeve; 501. Locking sleeve; 502. Friction pad; 5021. Sliding rod; 5022. Matching iron ring; 503. Guide sleeve; 504. Reset spring; 505. Electromagnetic iron block; 6. Sliding leg; 601. Anti-slip pad; 602. Connecting seat; 603. Connecting rod; 6031. Conductive contact; 604. Measuring circuit; 6041. Resistor bar; 7. Support top plate; 8. Power transformer body; 801. Fixed base. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example 1:

[0029] like Figure 1-6 As shown, an embodiment of the present invention provides a height-adjustable power transformer, including a support base 1, characterized in that: four matching sleeves 5 are fixedly connected to the upper side wall of the support base 1, the upper end of the matching sleeve 5 is fixedly connected to a locking sleeve 501, a sliding leg 6 is slidably connected to the interior of each matching sleeve 5, the upper ends of the four sliding legs 6 are fixedly connected to the same support top plate 7, a measurement circuit 604 is installed inside the matching sleeve 5 and near the bottom, and the output end of the measurement circuit 604 is fixedly connected to two resistor bars 6041;

[0030] The upper side wall of the support base 1 is installed with a storage component 2, an electric push rod 3 and a control box 4. The output end of the electric push rod 3 is fixedly connected to the lower side wall of the support top plate 7. The upper side wall of the support top plate 7 is detachably connected to two fixed base frames 801. The upper side walls of the two fixed base frames 801 are fixedly connected to the power transformer body 8.

[0031] Several support pads 101 are fixedly connected to the lower sidewalls of the support base 1 to improve the stability of the support base 1. The lower sidewalls of the support pads 101 are provided with anti-slip grooves to increase the friction coefficient of the lower sidewalls of the support pads 101. The fixed base frame 801 is detachably connected to the support top plate 7 via fixing bolts, facilitating the installation and removal of the power transformer body 8. This design ensures that the equipment remains stable under various ground conditions, preventing the equipment from tipping over due to uneven or slippery ground, and ensuring safe operation of the equipment.

[0032] The lower end of the sliding leg 6 is fixedly connected to a connecting base 602. A connecting rod 603 is fixedly connected to the lower sidewall of the connecting base 602. A conductive contact 6031 is fixedly connected to one sidewall of the connecting rod 603. The conductive contact 6031 cooperates with two resistor bars 6041. As the sliding leg 6 slides up and down, the conductive contact 6031 moves up and down, thereby changing the resistance of the circuit connected to the resistor bars 6041. The measurement circuit 604, the conductive contact 6031, and the resistor bars 6041 form a measurement circuit, which can determine the sliding distance of the sliding leg 6. The resistor bars 6041 are fixedly connected to the inner sidewall of the mating sleeve 5, improving their stability. This measurement circuit design accurately converts mechanical displacement into an electrical signal, thereby enabling precise monitoring of the sliding leg's position and providing reliable data support for height adjustment.

[0033] Two guide sleeves 503 are located within the mating sleeve 5. Each guide sleeve 503 is slidably connected to a sliding rod 5021. A friction pad 502 is fixedly connected to a side wall of the sliding rod 5021 near the sliding leg 6. This guide structure ensures the straightness of the sliding leg during its vertical movement, preventing it from getting stuck. The friction pads also increase friction with the sliding leg, allowing it to remain stably in the desired position when not in adjustment mode.

[0034] Two anti-slip pads 601 are fixedly attached to the outer wall of the sliding leg 6. Each anti-slip pad 601 cooperates with a friction pad 502, greatly increasing the friction between the mating sleeve 5 and the sliding leg 6, thereby preventing the mating sleeve 5 from slipping. This anti-slip design effectively prevents the sliding leg from sliding unnecessarily during adjustment, ensuring the accuracy of the adjustment operation and the stability of the device.

[0035] Each guide sleeve 503 is fixedly connected to an electromagnet block 505 on one side of the guide sleeve 503 near the sliding leg 6. A mating iron ring 5022 is fixedly connected to the other side of the friction pad 502 near the electromagnet block 505. The mating iron ring 5022 mates with the electromagnet block 505. When energized, the electromagnet block 505 attracts the mating iron ring 5022, thereby preventing the friction pad 502 from contacting the anti-slip pad 601, thereby allowing the height of the power transformer body 8 to be adjusted. This electromagnetic control method enables automated control of the locking and release of the sliding legs, improving operational convenience and efficiency while reducing manual intervention and the risk of operational errors.

[0036] Each sliding rod 5021 is equipped with a return spring 504 on its outer side. When the electromagnet 505 is de-energized, the return spring 504 pushes the friction pad 502 into contact with the anti-slip pad 601. This return spring ensures that the friction pad quickly returns to contact with the anti-slip pad after the electromagnet is de-energized, automatically locking the sliding leg. This avoids safety hazards caused by forgetting to manually lock the device, improving the safety and reliability of the device.

[0037] The mating sleeve 5 and the sliding leg 6 are both made of aluminum alloy. The use of aluminum alloy not only reduces the weight of the equipment, facilitating handling and installation, but also has excellent mechanical strength and corrosion resistance, enabling the equipment to operate stably and long-term in various harsh environments, extending the service life of the equipment and reducing maintenance costs.

[0038] Working principle: When the height of the power transformer body 8 needs to be adjusted, the operator inputs the target height or selects the preset mode through the control box 4. After receiving the command, the control box 4 starts the electric push rod 3 and the electromagnet block 505. The electric push rod 3 extends and retracts according to the command of the control box 4, driving the supporting top plate 7 and the power transformer body 8 above it to move up and down. At the same time, the electromagnet block 505 is energized to generate a magnetic field, which adsorbs the matching iron ring 5022, separates the friction pad 502 from the anti-slip pad 601, reduces the friction between the sliding leg 6 and the matching sleeve 5, and facilitates the sliding leg 6 to slide smoothly in the matching sleeve 5. During the movement of the sliding leg 6, the conductive contact 6031 at its lower end slides up and down with the sliding leg 6, and contacts with the resistor bar 6041 to form The variable resistor, the measuring circuit 604 monitors the resistance value change in real time, and converts the resistance signal into an electrical signal and transmits it to the control box 4. The built-in processing chip of the control box 4 analyzes and processes the signal, calculates the displacement of the sliding leg 6, and then determines the actual height position of the power transformer body 8, and displays it on the display screen of the control box 4. When the sliding leg 6 reaches the target position, the control box 4 stops supplying power to the electromagnet block 505, and the electromagnet block 505 loses power and loses its magnetism. At this time, the reset spring 504 pushes the friction pad 502 to re-contact the anti-slip pad 601, restoring the high friction state between the two, so that the sliding leg 6 can be stably maintained in the desired position in the non-adjustment state, preventing the sliding leg 6 from shifting due to accidental collision or vibration.

[0039] Example 2:

[0040] The difference between this embodiment and the first embodiment is that:

[0041] During outdoor power transmission line maintenance, the height of power transformers often needs to be adjusted to accommodate varying terrain and equipment layouts. In these situations, the control box's preset modes allow the power transformer body to be quickly raised to the appropriate height for easy connection to the transmission line. During operation, the measurement circuit monitors the position of the sliding legs in real time to ensure connection stability. In extreme weather conditions such as strong winds, operators can remotely lower the device to enhance wind resistance and ensure safety.

[0042] Example 3:

[0043] The difference between this embodiment and the first embodiment is that:

[0044] During the production testing of power transformers, electrical performance must be tested at various heights. The control box precisely sets the height, and an electric actuator drives the power transformer body to the target height. The measurement circuit provides real-time feedback on the height data, ensuring test accuracy. After each height test, the device automatically returns to its initial height, preparing for the next round of testing, improving testing efficiency. Furthermore, the device's adjustability allows for expanded applications based on testing requirements. For example, compatibility with power transformer bodies of varying sizes can be achieved by simply adjusting the length of the sliding leg and the travel of the mating sleeve, eliminating the need for equipment replacement and reducing production costs.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A power transformer with adjustable height, comprising a support base (1), characterized in that: Four matching sleeves (5) are fixedly connected to the upper side wall of the support base (1), the upper end of the matching sleeve (5) is fixedly connected to a locking sleeve (501), the interior of each matching sleeve (5) is slidably connected to a sliding leg (6), the upper ends of the four sliding legs (6) are fixedly connected to the same supporting top plate (7), a measuring circuit (604) is installed inside the matching sleeve (5) and near the bottom, and the output end of the measuring circuit (604) is fixedly connected to two resistance bars (6041); The upper side wall of the support base (1) is equipped with a power storage component (2), an electric push rod (3) and a control box (4); the output end of the electric push rod (3) is fixedly connected to the lower side wall of the support top plate (7); the upper side wall of the support top plate (7) is detachably connected to two fixed base frames (801); the upper side walls of the two fixed base frames (801) are fixedly connected to a power transformer body (8).

2. The height-adjustable power transformer according to claim 1, characterized in that: A plurality of support pads (101) are fixedly connected to the lower side wall of the support base (1), and the lower side wall of the support pad (101) is provided with anti-slip grooves. The fixed base frame (801) is detachably connected to the support top plate (7) via fixing bolts.

3. The height-adjustable power transformer according to claim 1, characterized in that: The lower end of the sliding leg (6) is fixedly connected to a connecting seat (602), the lower side wall of the connecting seat (602) is fixedly connected to a connecting rod (603), and a side wall of the connecting rod (603) is fixedly connected to a conductive contact piece (6031), the conductive contact piece (6031) cooperates with two resistor bars (6041), and the resistor bar (6041) is fixedly connected to the inner side wall of the matching sleeve (5).

4. The height-adjustable power transformer according to claim 1, characterized in that: Two guide sleeves (503) are provided inside the matching sleeve (5), and a sliding rod (5021) is slidably connected to the inside of each guide sleeve (503), and a friction pad (502) is fixedly connected to a side wall of the sliding rod (5021) close to the sliding leg (6).

5. The height-adjustable power transformer according to claim 4, characterized in that: Two anti-slip pads (601) are fixedly connected to the outer side wall of the sliding leg (6), and each anti-slip pad (601) cooperates with a friction pad (502).

6. The height-adjustable power transformer according to claim 4, characterized in that: A side wall of each guide sleeve (503) close to the sliding leg (6) is fixedly connected to an electromagnet block (505), and a side wall of the friction pad (502) close to the electromagnet block (505) is fixedly connected to a matching iron ring (5022), and the matching iron ring (5022) is matched with the electromagnet block (505).

7. The height-adjustable power transformer according to claim 4, characterized in that: The outer side wall of each sliding rod (5021) is provided with a return spring (504).

8. The height-adjustable power transformer according to claim 1, characterized in that: The matching sleeve (5) and the sliding leg (6) are both made of aluminum alloy material.

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