A 10kV three-element anti-resonance metering combined transformer

Abstract

This invention discloses a 10kV three-element anti-resonance metering combined transformer, including a Y-shaped expansion frame. The constricted portion of the Y-shaped expansion frame is fitted with a clamp for connection to a power pole. A first U-shaped bracket is fixed to the end of the Y-shaped expansion frame away from the clamp, and a second U-shaped bracket is welded to the top of the first U-shaped bracket. Both outer walls of the first U-shaped bracket have fully penetrating locking holes. The three-element anti-resonance combined transformer has elastic crossbeams installed on both sides of its bottom end for sliding engagement with the second U-shaped bracket. This invention employs a worm gear self-locking transmission box and a counter-rotating double-link push assembly design, enabling precise adjustment through mechanical transmission. Installation can be completed with simple operation by the operator. The self-locking function of the worm gear self-locking transmission box ensures that the equipment can be stably locked in position without continuous force.

Description

Technical Field

[0001] This invention relates to the field of combined instrument transformer technology, specifically a 10kV three-element anti-resonance metering combined instrument transformer. Background Technology

[0002] The 10kV three-element anti-resonance metering combined instrument transformer is widely used in power metering, harmonic monitoring, system protection, and data transmission. Its main function is to accurately measure the current and voltage in the high-voltage power system to calculate active and reactive power, ensuring accurate power metering and providing reliable power consumption data for power users. In addition, the device can effectively monitor harmonic phenomena in the power system, avoid power quality problems caused by harmonics, and protect the safe operation of equipment. The combined instrument transformer consists of a current transformer and a voltage transformer, which uses the principle of electromagnetic induction to convert high voltage and large current into low voltage and small current signals, facilitating subsequent processing and monitoring.

[0003] For example, Chinese invention patent CN114664517B relates to a current transformer, which includes a transformer body. The transformer body is disposed in a transfer assembly. The transfer assembly includes a transfer box, a connecting assembly, and a transfer cover. The transfer box has a placement opening. The transfer cover is movably connected to the end of the transfer box with the placement opening through the connecting assembly. This transformer is difficult to install and has low installation accuracy.

[0004] For example, Chinese invention patent CN118366747B relates to the field of current transformers, and in particular to a pillar-type current transformer. The pillar-type current transformer includes a sealed housing and a drive mechanism. An armature, a first winding, and a second winding are arranged inside the sealed housing. A first connection end and a second connection end are connected to the outside of the sealed housing. The first connection end is electrically connected to the first winding. This transformer has poor support and low stability.

[0005] However, when the three-phase instrument transformers in the above technical solution are installed on the poles of the power system, the bracket of the combined instrument transformer needs to be fixed to the pole. The installation of the bracket usually requires the use of bolts to firmly fix the bracket to the pole, and the use of lifting equipment to hoist the combined instrument transformer to the predetermined position. During this process, the combined instrument transformer and the bracket are fastened with several bolts. However, the height of the pole and the installation position often determine the complexity of the operating environment. The structure of the pole itself and other equipment such as cables and brackets may occupy a certain amount of space, making the working space of the workers very narrow. As a result, the bolt tightening work requires the workers to constantly adjust their posture and move tools and equipment. Under these circumstances, the installation and tightening of bolts becomes more difficult.

[0006] Meanwhile, when external forces such as wind apply force to the three-element anti-resonance metering combined transformer, it will cause the position of the three-element anti-resonance metering combined transformer to change. This will not only affect the installation stability of the three-element anti-resonance metering combined transformer, but also damage the cables above the three-element anti-resonance metering combined transformer, and ultimately affect the safety and stability of the three-element anti-resonance metering combined transformer in use.

[0007] After prolonged use, a large amount of dust and impurities tend to accumulate on the outer surface of the three-element anti-resonance metering combined transformer. In addition, some birds and insects may also stay on the outer surface of the three-element anti-resonance metering combined transformer, which may cause short circuits and other problems. Summary of the Invention

[0008] The purpose of this invention is to provide a 10kV three-element anti-resonance metering combined transformer to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a 10kV three-element anti-resonance metering combined transformer, comprising:

[0010] The Y-shaped expansion frame has a clamp for connecting to the utility pole installed at the constricted end. A first U-shaped bracket is fixed at the end of the Y-shaped expansion frame away from the clamp, and a second U-shaped bracket is welded to the top of the first U-shaped bracket. Both outer walls of the first U-shaped bracket are provided with fully penetrating locking holes, and multiple pressure sensors are evenly arranged inside the locking holes.

[0011] The three-element anti-resonance metering combined transformer has elastic crossbeams installed on both sides of its bottom end for sliding cooperation with the second U-port frame. A longitudinal pressure beam is provided above the elastic crossbeam, and electric pull rods are provided on both sides of the top of the longitudinal pressure beam. Multiple blowers are installed on one side of the top of the second U-port frame. Each blower has an exhaust port on the side of the blower closest to the three-element anti-resonance metering combined transformer. Support frames are fixed at the bottom ends of the two elastic crossbeams, and conical columns are slidably installed on the outer walls of both sides of the support frames.

[0012] A counter-rotating double-link jacking assembly is provided at the bottom end of the support frame.

[0013] The pressure changes detected by multiple pressure sensors correspond to the changes in the position of the three-element anti-resonance metering combined transformer above the second U-port frame. The longitudinal pressure beam moves up and down via an electric pull rod, which in turn moves the elastic crossbeam, thereby adjusting the position of the three-element anti-resonance metering combined transformer. Furthermore, the movement of the longitudinal pressure beam changes the blockage area of ​​the exhaust port, and the exhaust port provides pulsed airflow adjustment to the outer surface of the three-element anti-resonance metering combined transformer, thus ensuring the continuous and stable operation of the three-element anti-resonance metering combined transformer.

[0014] Preferably, the clamping component includes a right clamp fixed to the constricted part of the Y-shaped expansion frame and a left clamp for forming a ring structure with the right clamp. Both the right clamp and the left clamp have integrally formed connecting feet on their outer walls for bolt connection. The left clamp has a through hole on one outer wall for expansion bolts to pass through. The Y-shaped expansion frame, the right clamp, and the left clamp are all made of alloy steel.

[0015] Preferably, the second U-shaped frame and the elastic crossbeam are located between the first U-shaped frame and the longitudinal pressure beam, and one side of the outer wall of the blower is in contact with one side of the outer wall of the second U-shaped frame.

[0016] Preferably, the bottom end of the elastic crossbeam is provided with a raised groove for sliding engagement with the second U-shaped frame, the support frame is used to contact the end of the second U-shaped frame after the elastic crossbeam and the second U-shaped frame are slidably assembled, and the conical column is concentric with the locking hole after the elastic crossbeam and the second U-shaped frame are slidably assembled.

[0017] Preferably, the opposing double-link push assembly includes drive shafts rotatably mounted on both sides of the bottom end of the three-element anti-resonance metering combined transformer, a gear transmission structure installed between the two drive shafts for maintaining power connection, double-headed conical plates rotatably mounted on both sides of the bottom end of the support frame, and right-angle seats slidably mounted on both sides of the bottom end of the support frame.

[0018] Preferably, the bottom end of the drive shaft is equipped with a connecting rod swing structure for driving the double-headed conical plate to rotate, the bottom end of the double-headed conical plate is equipped with a wheel-embedded structure for driving the right-angle seat to slide, the double-headed conical plate is located inside the two elastic crossbeams, and one end of the conical column is fixedly connected to one side outer wall of the right-angle seat.

[0019] Preferably, the connecting rod push structure includes a main swing head fixed to the bottom end of the transmission shaft and a flat-head connecting rod unit hinged to one end of the main swing head. The end of the flat-head connecting rod unit away from the transmission shaft is hinged to one end of the double-headed conical plate. The gear transmission structure consists of gear discs mounted on the two transmission shafts, and the two gear discs mesh with each other.

[0020] Preferably, the wheel-embedded structure consists of a straight groove inside the right-angle seat and a roller rotatably mounted on the bottom of the double-headed conical plate. The roller is located in the straight groove, a dovetail sleeve is fixed on one inner wall of the right-angle seat, and a dovetail track for sliding the dovetail sleeve is fixed on the back of the support frame.

[0021] Preferably, the opposing double-link push assembly is used to drive the two conical columns to slide in opposite directions and allow the conical columns and locking holes to be inserted into each other. A worm gear self-locking transmission box for driving the opposing double-link push assembly is installed on one side of the bottom end of the three-element anti-resonance metering combined transformer.

[0022] Preferably, the exhaust vent is directly opposite the working surface of the three-element anti-resonance metering combined transformer, the longitudinal pressure beam corresponds to the exhaust vent, the pressure sensor is used to detect the pressure value between the inner wall of the locking hole and the conical column, the elastic crossbeam is elastic, and the bottom of the longitudinal pressure beam and the top of the elastic crossbeam are in elastic compression contact.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. This 10kV three-element anti-resonance metering combined transformer can be installed on the pole efficiently and stably. The design of the worm gear self-locking transmission box and the opposing double linkage push assembly can achieve precise adjustment through mechanical transmission.

[0025] 2. During the positioning process, the staff operates the worm gear self-locking transmission box to ensure that the conical column can accurately align with the locking hole, avoiding misalignment or loosening caused by improper bolt tightening.

[0026] 3. When the electric pull rod drives the longitudinal pressure beam to move up and down and drives the elastic crossbeam to move up and down, it can not only adjust the position of the three-element anti-resonance metering combined transformer, thereby ensuring the stability and accuracy of the position of the three-element anti-resonance metering combined transformer, but also, in conjunction with the clean gas discharged from the exhaust port, can vibrate and clean the dust and impurities attached to the outer surface of the three-element anti-resonance metering combined transformer, and can also achieve the effect of repelling birds and insects. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0029] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0030] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0031] Figure 5 This is a schematic diagram of the three-dimensional structure of the Y-shaped external expansion frame of the present invention;

[0032] Figure 6 This is a schematic diagram of the three-dimensional structure of the longitudinal pressure beam of the present invention;

[0033] Figure 7 This is a schematic diagram of the three-dimensional structure of the opposing double-link jacking assembly of the present invention. Figure 1 ;

[0034] Figure 8 This is a schematic diagram of the three-dimensional structure of the opposing double-link jacking assembly of the present invention. Figure 2 .

[0035] In the diagram: 1. Y-shaped expansion frame; 2. Clamping fitting; 201. Right clamp; 202. Left clamp; 203. Connecting foot; 3. First U-shaped frame; 301. Locking hole; 302. Pressure sensor; 4. Longitudinal pressure beam; 401. Electric pull rod; 5. Second U-shaped frame; 501. Blower; 502. Exhaust vent; 6. Three-element anti-resonance metering combined transformer; 7. Elastic crossbeam; 701. T-shaped part. 8. Groove; 9. Support frame; 10. Conical column; 11. Opposing double-link push assembly; 12. Drive shaft; 13. Gear transmission structure; 14. Linkage swing push structure; 15. Main swing head; 16. Flat head connecting rod unit; 17. Double-headed conical plate; 18. Roller; 19. Right-angle seat; 20. Straight groove; 20. Worm gear self-locking transmission box. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] Depend on Figures 1 to 4 The present invention includes a Y-shaped expansion frame 1. The constricted portion of the Y-shaped expansion frame 1 is equipped with a clamp 2 for connecting to a utility pole. The clamp 2 is fixed to the outer surface of the utility pole, further improving the stability and fixation of the Y-shaped expansion frame 1. A first U-shaped bracket 3 is fixed to the end of the Y-shaped expansion frame 1 away from the clamp 2, and a second U-shaped bracket 5 is welded to the top of the first U-shaped bracket 3. The first U-shaped bracket 3 and the second U-shaped bracket 5 serve as fixed supports. Both sides of the outer wall of the first U-shaped bracket 3 are provided with fully penetrating locking holes 301, which facilitate the locking function.

[0038] The three-element anti-resonance metering combined transformer 6 is a special transformer that converts the high voltage or large current of the primary circuit into the low voltage (100V) or rated secondary current (5A or 1A) of the secondary circuit. This protects the safety of the staff and facilitates remote control, telemetry, and appropriate changes to the secondary circuit without interrupting the primary system. The working principle of the combined transformer is based on the principle of electromagnetic induction. The current transformer connects the primary winding in series to the circuit under test, which has minimal impact on the current and voltage of the circuit under test.

[0039] Voltage transformers convert high voltage to a standard secondary voltage of 100V or lower, supplied to protection, metering, and instrumentation devices. A 10kV three-element combined transformer has a rated voltage of 10kV, a rated frequency of 50Hz, a rated primary current range of 5A to 300A, and a rated secondary current of 5A. It has an accuracy class of 0.2, a transformation ratio of 10000 / 100V, and anti-resonance design considerations to avoid ferroresonant phenomena, which are particularly important for high-voltage transformers. Ferroresonant phenomena can lead to equipment damage and inaccurate measurements.

[0040] The bottom of the three-element anti-resonance metering combined transformer 6 is equipped with elastic crossbeams 7 on both sides for sliding engagement with the second U-port frame 5. The bottom ends of the two elastic crossbeams 7 are fixed with support frames 8. The support frames 8 are used to contact the end of the second U-port frame 5 after the elastic crossbeams 7 and the second U-port frame 5 are slidably installed on both outer walls of the support frames 8. The conical columns 9 are concentric with the locking hole 301 after the elastic crossbeams 7 and the second U-port frame 5 are slidably assembled.

[0041] The opposing double-link push assembly 10 is located at the bottom of the support frame 8. It is used to drive the two conical columns 9 to slide in opposite directions and to allow the conical columns 9 and the locking hole 301 to be inserted. Therefore, when the conical column 9 is inserted into the locking hole 301, the insertion pressure of the conical column 9 and the locking hole 301 changes accordingly as the conical column 9 moves continuously. A worm gear self-locking transmission box 11 for driving the opposing double-link push assembly 10 is installed on one side of the bottom of the three-element anti-resonance metering combined transformer 6.

[0042] Depend on Figure 5 and Figure 6The clamp component 2 includes a right clamp 201 fixed to the constricted portion of the Y-shaped expansion frame 1 and a left clamp 202 forming a ring structure with the right clamp 201. Both the right clamp 201 and the left clamp 202 have integrally formed connecting feet 203 for bolt connection on their outer walls. The left clamp 202 has a through hole on one outer wall for expansion bolts to pass through. The Y-shaped expansion frame 1, the right clamp 201, and the left clamp 202 are all made of alloy steel. When fixing the Y-shaped expansion frame 1, the operator initially fixes it to the three-element anti-resonance metering combined transformer 6 using the right clamp 201 and the left clamp 202. The dimensions of the right clamp 201 and left clamp 202 on the installed pole need to be processed and used according to the diameter of the pole on site. The right clamp 201 and left clamp 202 are connected together by connecting feet 203 and bolts to form a ring structure. Then, the workers drive the expansion bolts into the pole through the through hole in the left clamp 202 to make the clamp 2 firmly installed with the pole, so as to ensure the stability of the Y-shaped expansion frame 1. The installation of the clamp 2 is simple. The workers only need to place it on the pole and fix it with bolts. At the same time, it ensures that the connection between the Y-shaped expansion frame 1 and the pole is firm, reducing the risk of loosening caused by external forces such as vibration and wind.

[0043] A longitudinal pressure beam 4 is provided above the elastic crossbeam 7, and electric pull rods 401 are provided on both sides of the top of the longitudinal pressure beam 4. When the electric pull rod 401 is started and the output end is shortened, the electric pull rod 401 drives the end of the elastic crossbeam 7 to move downward. The second U-shaped frame 5 and the elastic crossbeam 7 are located between the first U-shaped frame 3 and the longitudinal pressure beam 4. A blower 501 is installed on one side of the top of the second U-shaped frame 5, and one side of the outer wall of the blower 501 is in contact with one side of the outer wall of the second U-shaped frame 5.

[0044] When the operator activates the electric pull rod 401 and the output end shortens, the electric pull rod 401 applies downward force to the longitudinal pressure beam 4, and further tightens the second U-shaped frame 5 and the elastic crossbeam 7. This allows the longitudinal pressure beam 4, the second U-shaped frame 5, the first U-shaped frame 3, and the elastic crossbeam 7 to form a solid frame structure, thereby providing multiple support points, effectively distributing the load from the equipment, and preventing the equipment from shifting or shaking due to gravity or wind.

[0045] The bottom end of the elastic crossbeam 7 is provided with a raised groove 701 for sliding engagement with the second U-port frame 5. The elastic crossbeam 7 is used to bear and distribute the weight of the three-element anti-resonance metering combined transformer 6, and connects the second U-port frame 5 and the first U-port frame 3 to ensure that the three-element anti-resonance metering combined transformer 6 is stably hung on the support. The raised groove 701 on the lower surface of the elastic crossbeam 7 facilitates its sliding engagement with the second U-port frame 5.

[0046] Depend on Figure 7 and Figure 8 The opposing double-link push assembly 10 includes drive shafts 1001 rotatably mounted on both sides of the bottom end of the three-element anti-resonance metering combined transformer 6, a gear transmission structure 1002 for maintaining power connection installed between the two drive shafts 1001, double-headed conical plates 1004 rotatably mounted on both sides of the bottom end of the support frame 8, and right-angle seats 1005 slidably mounted on both sides of the bottom end of the support frame 8.

[0047] The bottom end of the drive shaft 1001 is equipped with a connecting rod swing-push structure 1003 for driving the double-headed conical plate 1004 to rotate. The bottom end of the double-headed conical plate 1004 is equipped with a wheel-embedded structure for driving the right-angle seat 1005 to slide. The double-headed conical plate 1004 is located inside the two elastic crossbeams 7. One end of the conical column 9 is fixedly connected to one side of the outer wall of the right-angle seat 1005. The connecting rod swing-push structure 1003 includes a main swing head 10031 fixed to the bottom end of the drive shaft 1001 and a flat-headed connecting rod unit 10032 hinged to one end of the main swing head 10031. The end of the connecting rod unit 10032 away from the drive shaft 1001 is hinged to one end of the double-headed tapered plate 1004. The gear transmission structure 1002 is a gear disk mounted on two drive shafts 1001. The two gear disks mesh with each other and drive one of the drive shafts 1001 to rotate through the worm gear self-locking transmission box 11. The self-locking design of the worm gear self-locking transmission box 11 ensures that the opposing double connecting rod push assembly 10 will not slide even without external force, thereby maintaining the installation stability of the three-element anti-resonance metering combined transformer 6.

[0048] The wheel-embedded structure consists of a straight groove 10051 inside the right-angle seat 1005 and a roller 10041 rotatably mounted on the bottom of the double-headed conical plate 1004. The roller 10041 is located in the straight groove 10051. The two drive shafts 1001 rotate synchronously and in opposite directions under the drive of the gear transmission structure 1002. The drive shafts 1001 then force the double-headed conical plate 1004 to rotate through the main swing head 10031 and the flat-headed connecting rod unit 10032. The roller 10041 at the bottom of the shaped plate 1004 is located in the straight groove 10051 of the right angle seat 1005. The rotational motion of the double-headed conical plate 1004 will be converted into the horizontal sliding motion of the right angle seat 1005 and the conical column 9 through the roller 10041 and the straight groove 10051 until the conical column 9 enters the locking hole 301. The synchronous pushing action of the two conical columns 9 can be efficiently completed by the opposing double linkage push assembly 10, reducing the difficulty of manual operation.

[0049] A dovetail slide is fixed on one inner wall of the right-angle seat 1005, and a dovetail track for sliding the dovetail slide is fixed on the back of the support frame 8. The back of the support frame 8 is connected to the right-angle seat 1005 through the dovetail track and the dovetail slide to improve the sliding stability of the right-angle seat 1005.

[0050] After the conical column 9 is pushed into the locking hole 301 by the opposing double-link push assembly 10 and the worm gear self-locking transmission box 11, since the extension line of the central axis of the conical column 9 is perpendicular to the extension line of the elastic crossbeam 7 and the first U-shaped frame 3, the insertion and engagement of the conical column 9 and the locking hole 301 prevents the elastic crossbeam 7 and the second U-shaped frame 5 from moving back and forth, as well as the elastic crossbeam 7 and the three-element anti-resonance metering combined transformer 6 from jumping up and down, thus ensuring that the three-element anti-resonance metering combined transformer 6 can be installed stably.

[0051] Multiple pressure sensors 302 are evenly arranged inside the locking hole 301. The pressure sensors 302 are used to detect the pressure value between the inner wall of the locking hole 301 and the conical column 9. Each side of the blower 501 near the three-element anti-resonance metering combined transformer 6 has an exhaust port 502. The exhaust port 502 faces the working surface of the three-element anti-resonance metering combined transformer 6. When the blower 501 starts, it discharges clean gas along the exhaust port 502 into the three-element anti-resonance metering combined transformer 6. This gas effectively cleans the outer surface of the three-element anti-resonance metering combined transformer 6, improving the dust-free environment of its outer surface. For stability and electrical conductivity, the longitudinal pressure beam 4 corresponds to the exhaust port 502, and the elastic crossbeam 7 is elastic. The bottom of the longitudinal pressure beam 4 and the top of the elastic crossbeam 7 are in elastic compression contact. The elastic crossbeam 7 can further improve the elastic support effect on the three-element anti-resonance metering combined transformer 6 by means of its own elasticity, ensuring the stability and vibration resistance of the three-element anti-resonance metering combined transformer 6. At the same time, when the longitudinal pressure beam 4 moves downward, the longitudinal pressure beam 4 not only increases the downward pressure applied to the end of the elastic crossbeam 7, but also causes the elastic crossbeam 7 to undergo elastic deformation and adjust the blocking area of ​​the exhaust port 502 accordingly, so as to realize the pulse wind cleaning of the exhaust port 502.

[0052] In this embodiment of the application, the worker first assembles the Y-shaped expansion frame 1 at the appropriate position on the pole using the clamp 2. The clamp 2 needs to be tightly connected to the pole with expansion bolts to ensure that the Y-shaped expansion frame 1 is firmly fixed on the pole. At this stage, the worker only needs to align the clamp 2 with the pole installation position and fix the clamp 2 to the pole with bolts to ensure that subsequent operations can be carried out smoothly.

[0053] Next, the staff hoisted the three-element anti-resonance metering combined transformer 6 to the designated position of the Y-shaped expansion frame 1 using lifting equipment and lifting tools. This allowed the Y-shaped expansion frame 1 to initially overlap with the second U-shaped frame 5 via two elastic crossbeams 7. At this point, the staff slidably assembled the elastic crossbeam 7 at the bottom of the three-element anti-resonance metering combined transformer 6 with the second U-shaped frame 5 to ensure that the transformer could initially support and stabilize itself on the Y-shaped expansion frame 1. Simultaneously, the electric pull rod 401 was activated and its output end shortened, causing the longitudinal pressure beam 4 to move downwards. When the longitudinal pressure beam 4 is positioned correctly, the bottom of the longitudinal pressure beam 4 presses and fixes the end of the elastic crossbeam 7, thereby fixing the elastic crossbeam 7 above the first U-shaped bracket 3 and the second U-shaped bracket 5, thus completing the installation and fixing of the three-element anti-resonance metering combined transformer 6. The blower 501 starts and sends out clean gas along the exhaust port 502. The clean gas has an increased flow velocity under the obstruction of the longitudinal pressure beam 4 and acts on the working surface of the three-element anti-resonance metering combined transformer 6, thereby effectively improving the dust-free operation and stability of the three-element anti-resonance metering combined transformer 6.

[0054] During this process, the staff needs to align the three-element anti-resonance metering combined transformer 6 with the first U-port frame 3 until the second U-port frame 5 and the elastic crossbeam 7 are assembled in place. This ensures that the transformer will not be unstable due to positional deviation or subsequent connection failure. After the second U-port frame 5 and the elastic crossbeam 7 are slidably assembled to their limit positions, the conical column 9 and the locking hole 301 will be in a concentric state, and the support frame 8 will be located at the end of the second U-port frame 5. Through the operation of the worm gear self-locking transmission box 11, the staff can push the two conical columns 9 into the locking hole 301 by the opposing double connecting rod push assembly 10. Then, the pressure values ​​detected by multiple pressure sensors 302 will all reach the preset pressure values.

[0055] Subsequently, the self-locking function of the worm gear self-locking transmission box 11 and the use of the opposing double-link push assembly 10 ensure that the operator can stabilize the elastic crossbeam 7 without continuous force during operation, and push the two conical columns 9 away in the predetermined direction until they are fully inserted into the locking hole 301 on the first U-shaped frame 3. The conical structure of the conical column 9 itself improves the insertion and locking effect with the locking hole 301, thereby improving the positional stability of the three-element anti-resonance metering combined transformer 6. The operator does not need to manually tighten bolts or other... The fixing device avoids installation problems caused by excessive force or improper operation. Once the conical column 9 is fully inserted into the locking hole 301 and the two U-port frames are engaged, the three-element anti-resonance metering combined transformer 6 is firmly connected to the first U-port frame 3 and the second U-port frame 5. At this time, the three-element anti-resonance metering combined transformer 6 is firmly installed on the pole and will not loosen or shift due to external vibration. The entire installation process is not only completed smoothly, but also requires little manual intervention, thereby improving installation accuracy and stability.

[0056] Then as Figure 2 When the external wind force or other forces cause the three-element anti-resonance metering combined transformer 6 to move downwards, the three-element anti-resonance metering combined transformer 6 drives the elastic beam 7 to move downwards. The elastic beam 7 then drives the support frame 8 to move downwards. The support frame 8, through the opposing double-link push assembly 10, drives the conical column 9 to move downwards inside the locking hole 301. The pressure values ​​detected by the two pressure sensors 302 below increase and exceed the preset pressure value. The three-element anti-resonance metering combined transformer 6 then drives the other end of the elastic beam 7 to move downwards. The device should move upwards. To ensure the stability of the position of the three-element anti-resonance metering combined transformer 6, the electric pull rod 401 is activated and its output end is shortened. The electric pull rod 401 drives the longitudinal pressure beam 4 to move downwards. The downward pressure exerted by the longitudinal pressure beam 4 on the end of the elastic crossbeam 7 increases. Under this pressure, the elastic crossbeam 7 continuously returns to a straight state. The other end of the elastic crossbeam 7 drives the three-element anti-resonance metering combined transformer 6 to move upwards and continuously move to the initial position, further improving the stability of the position of the three-element anti-resonance metering combined transformer 6.

[0057] Simultaneously, when the three-element anti-resonance metering combined transformer 6 moves to the left, the distance between the three-element anti-resonance metering combined transformer 6 and the blower 501 decreases. Similarly, the three-element anti-resonance metering combined transformer 6 drives the conical column 9 to move to the left through the elastic crossbeam 7, support frame 8, and opposing double-link push assembly 10. The pressure value detected by the multiple pressure sensors 302 on the left side of the conical column 9 increases. At this time, the electric pull rod 401 starts and the output end extends. The electric pull rod 401 drives the longitudinal pressure beam 4 to move upward. The squeezing force applied by the longitudinal pressure beam 4 to the end of the elastic crossbeam 7 decreases. Under the action of the weight of the three-element anti-resonance metering combined transformer 6 itself, the elastic crossbeam 7 tilts downward from left to right. As the elastic crossbeam 7 tilts, the three-element anti-resonance metering combined transformer 6 moves to the right and continuously returns to its original position, further ensuring the accuracy and stability of the position of the three-element anti-resonance metering combined transformer 6.

[0058] Similarly, when the three-element anti-resonance metering combined transformer 6 moves to the right, the pressure value detected by the multiple pressure sensors 302 on the right increases, the electric pull rod 401 starts and the output end shortens, the electric pull rod 401 drives the longitudinal pressure beam 4 to move downward, the longitudinal pressure beam 4 increases the squeezing force applied to the end of the elastic crossbeam 7, the elastic crossbeam 7 tilts downward from right to left, and slides to the initial position along the elastic crossbeam 7 under the action of its own gravity.

[0059] Furthermore, when the three-element anti-resonance metering combined transformer 6 moves forward, it drives the front conical column 9 forward via the elastic crossbeam 7, support frame 8, and opposing double-link push assembly 10. At this time, in conjunction with the conical structure of the conical column 9 itself, the compressive force between the front conical column 9 and the locking hole 301 increases, and the pressure value detected by the multiple pressure sensors 302 inside the front locking hole 301 increases, while the pressure value detected by the multiple pressure sensors 302 inside the rear locking hole 301 decreases. Therefore, the rear electric pull rod 401 is activated and outputs... As the output end shortens, the rear electric pull rod 401 drives the front side of the longitudinal pressure beam 4 to move downward. At the same time, the front electric pull rod 401 starts and the output end extends, driving the front side of the longitudinal pressure beam 4 to move upward. Correspondingly, the longitudinal pressure beam 4 tilts downward from front to back. Under the action of its own gravity, the three-element anti-resonance metering combined transformer 6 moves backward along the elastic crossbeam 7 and reaches the initial position, further improving the stability and vibration resistance of the position of the three-element anti-resonance metering combined transformer 6, and ensuring the continuous and stable operation of the three-element anti-resonance metering combined transformer 6.

[0060] Meanwhile, the blower 501 continuously operates and discharges clean gas through the exhaust port 502. The blocking effect of the longitudinal pressure beam 4 on the end of the exhaust port 502 ensures that the clean gas continuously and stably acts on the working surface of the three-element anti-resonance metering combined transformer 6, guaranteeing the dust-free and cooling performance of the three-element anti-resonance metering combined transformer 6. When the electric pull rod 401 moves the longitudinal pressure beam 4 up and down above the elastic crossbeam 7, the blocking area of ​​the longitudinal pressure beam 4 on the end of the exhaust port 502 changes accordingly, and the air volume discharged from the exhaust port 502 changes accordingly. This change makes the air force discharged from the exhaust port 502 a pulse effect, which not only improves the pulse cleaning effect on the three-element anti-resonance metering combined transformer 6 and the impact removal effect on adhering impurities, but also enables the air force to cool different positions on the working surface of the three-element anti-resonance metering combined transformer 6, improving the cooling effect and ensuring the continuous and stable operation of the three-element anti-resonance metering combined transformer 6.

[0061] In particular, when the electric pull rod 401 drives the longitudinal pressure beam 4 to move up and down and drives the elastic crossbeam 7 to move up and down, the elastic crossbeam 7 drives the three-element anti-resonance metering combined transformer 6 to move up and down. At this time, not only can the position of the three-element anti-resonance metering combined transformer 6 be adjusted, thereby ensuring the stability and accuracy of the position of the three-element anti-resonance metering combined transformer 6, but also the clean gas discharged from the exhaust port 502 can vibrate and clean the dust and impurities attached to the outer surface of the three-element anti-resonance metering combined transformer 6, and can also achieve the effect of repelling birds and insects, preventing birds and insects from staying on the outer surface of the three-element anti-resonance metering combined transformer 6 for a long time and reducing the working stability.

[0062] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0063] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A 10kV three-element anti-resonance metering combined transformer, characterized in that, include: The Y-shaped expansion frame has a clamp at its constricted end for connection to the utility pole. A first U-shaped bracket is fixed to the end of the Y-shaped expansion frame furthest from the clamp. A second U-shaped bracket is welded to the top of the first U-shaped bracket. Both sides of the first U-shaped bracket have fully penetrating locking holes, inside which multiple pressure sensors are evenly arranged. The bottom of the three-element anti-resonance metering combined transformer has elastic crossbeams on both sides for sliding engagement with the second U-shaped bracket. Above the elastic crossbeams is... The system includes a longitudinal pressure beam with electric pull rods on both sides of the top of the beam. Multiple blowers are installed on one side of the top of the second U-shaped frame. Each blower has an exhaust port on the side near the three-element anti-resonance metering combined transformer. Support frames are fixed to the bottom of the two elastic crossbeams, and conical columns are slidably installed on the outer walls of both sides of the support frames. A counter-rotating double-link push assembly is installed at the bottom of the support frame. The second U-shaped frame and the elastic crossbeam are located between the first U-shaped frame and the longitudinal pressure beam. The opposing double-link push assembly includes drive shafts rotatably mounted on both sides of the bottom end of a three-element anti-resonance metering combined transformer, a gear transmission structure installed between the two drive shafts to maintain power connection, double-headed conical plates rotatably mounted on both sides of the bottom end of a support frame, and right-angle seats slidably mounted on both sides of the bottom end of the support frame. A connecting rod swing-push structure for rotating the double-headed conical plates is installed at the bottom end of the drive shafts, and a wheel-embedded structure for sliding the right-angle seats is installed at the bottom end of the double-headed conical plates. The double-headed conical plates are located inside two elastic crossbeams, and one end of the conical column is fixedly connected to one outer wall of the right-angle seat. The connecting rod swing-push structure includes components fixed to the bottom end of the drive shafts. The main swing head and a flat-head connecting rod unit hinged to one end of the main swing head are connected. The end of the flat-head connecting rod unit away from the drive shaft is hinged to one end of the double-headed conical plate. The gear transmission structure consists of gear discs mounted on two drive shafts, which mesh with each other. The wheel-embedding structure consists of a straight groove inside the right-angle seat and a roller rotatably mounted at the bottom of the double-headed conical plate. The roller is located in the straight groove. A dovetail sleeve is fixed on one inner wall of the right-angle seat. A dovetail track for sliding the dovetail sleeve is fixed on the back of the support frame. The opposing double-link push assembly is used to drive the two conical columns to slide in opposite directions and allow the conical columns and locking holes to be inserted.

2. A 10kV three-element anti-resonance metering combined transformer according to claim 1, characterized in that: The clamping components include a right clamp fixed to the constricted part of the Y-shaped expansion frame and a left clamp for forming a ring structure with the right clamp. Both the right and left clamps have integrally formed connecting feet on their outer walls for bolt connection. The left clamp has a through hole on one outer wall for expansion bolts to pass through. The Y-shaped expansion frame, the right clamp, and the left clamp are all made of alloy steel components.

3. A 10kV three-element anti-resonance metering combined transformer according to claim 1, characterized in that: The output end of the electric pull rod drives the longitudinal pressure beam to move up and down, and one side of the outer wall of the blower comes into contact with one side of the outer wall of the second U-shaped frame.

4. A 10kV three-element anti-resonance metering combined transformer according to claim 1, characterized in that: The bottom end of the elastic crossbeam is provided with a raised groove for sliding engagement with the second U-shaped frame. The support frame is used to contact the end of the second U-shaped frame after the elastic crossbeam and the second U-shaped frame are slidably assembled. The conical column is concentric with the locking hole after the elastic crossbeam and the second U-shaped frame are slidably assembled.

5. A 10kV three-element anti-resonance metering combined transformer according to claim 1, characterized in that: A worm gear self-locking transmission box for driving the opposing double-link jacking assembly is installed on one side of the bottom of the three-element anti-resonance metering combined transformer.

6. A 10kV three-element anti-resonance metering combined transformer according to claim 1, characterized in that: The exhaust vent faces the working surface of the three-element anti-resonance metering combined transformer. The longitudinal pressure beam corresponds to the exhaust vent. The pressure sensor is used to detect the pressure value between the inner wall of the locking hole and the conical column. The elastic crossbeam is elastic, and the bottom of the longitudinal pressure beam and the top of the elastic crossbeam are in elastic compression contact.

Images