High-frequency transformer rectifier

Abstract

The invention relates to the technical field of rectifiers, and discloses a high-frequency transformer rectifier which comprises a rectifier body provided with a connector, an installation cover installed on the rectifier body, a limiting box installed on the installation cover, a first sliding column arranged in the limiting box, a plurality of magnetic strips installed on the first sliding column and a friction plate connected to the first sliding column. The bottom of the friction plate is connected with a sliding plate, the sliding plate is connected with mounting covers through first springs, a protective cover is arranged between the two mounting covers, friction blocks are arranged in the mounting covers, a positioning mechanism is arranged on the protective cover, and a driving mechanism is arranged on the first rotating shaft. The positioning mechanism is matched with the driving mechanism, so that the overturned protective cover is automatically reset at different angles and at different time, and the resetting speed is uniform; through the interaction among components such as a first spring, a friction plate, a magnetic strip, a first magnetic plate and a friction block, after the protective cover is opened every time, even if a worker forgets to reset manually due to busy, the protective cover can automatically reset within a certain time.

Description

Technical Field

[0001] The present invention relates to the technical field of rectifiers, and more particularly to a high-frequency transformer rectifier. Background Art

[0002] In the application fields of power systems and many electronic equipment, high-frequency transformer rectifiers play a vital role. They can realize the conversion between AC and DC, and ensure that electric energy is supplied to various electrical equipment in a suitable form. As the key interface for power transmission, the connector on the rectifier needs to be properly protected to avoid damage caused by external environmental factors (such as dust, water vapor, foreign objects, etc.), which will affect the stability of power transmission and the normal operation of the equipment.

[0003] In the prior art, a water-cooled high-frequency transformer rectifier is disclosed in a patent with publication number CN114389464B. The patent records that since the rectifier protects the terminal posts, a group of protective covers will be installed at the terminal posts to protect the terminal posts. However, the existing protective covers are all rotated manually and are connected to the rectifier rotation. Therefore, the protective covers may fall during the wiring process. Therefore, the protective covers need to be rotated again, which wastes time in wiring. However, this patent sets a motor and drives the rotating assembly to rotate the protective cover, thereby turning the protective cover open and fixing the position, so that the terminal posts are exposed and the protective cover will not fall.

[0004] Although the above operation can fix the position of the protective cover after it is turned open, in actual working scenarios, workers often forget to control the motor again and reset the protective cover due to busyness or negligence, causing the connector to be exposed for a long time, increasing the risk of damage, and thus affecting the performance and service life of the entire equipment. Therefore, we designed a high-frequency transformer rectifier. Summary of the invention

[0005] The present invention provides a high-frequency transformer rectifier to solve the technical problem in the related technology that the staff often forgets to control the motor again and reset the protective cover due to being busy or negligent, resulting in the connector being exposed to the outside for a long time, increasing the risk of damage, and further affecting the performance and service life of the entire equipment.

[0006] The present invention provides a high-frequency transformer rectifier, comprising a rectifier body with a connector installed, a mounting cover fixedly installed on the rectifier body, a limit box fixedly installed on the mounting cover, a first sliding column slidably connected inside the limit box, a plurality of magnetic strips fixedly installed on the first sliding column, a friction plate fixedly connected to the bottom of the first sliding column, the roughness of the bottom of the friction plate decreases from left to right, a slide plate fixedly connected to the bottom of the friction plate, the slide plate is connected to the mounting cover through a first spring, a protective cover is arranged between the two mounting covers, a friction block is arranged inside the mounting cover, a positioning mechanism is arranged on the protective cover, the positioning mechanism is connected to the first rotating shaft, a driving mechanism is arranged on the first rotating shaft, the positioning mechanism cooperates with the driving mechanism to flip the protective cover, and after the connector is connected, the protective cover is automatically closed; an adjustment mechanism is arranged on the friction block, and when the protective cover flips, the adjustment mechanism drives the gap between the friction plate and the friction block to decrease.

[0007] As a further optimization scheme of the present invention, a first rotating shaft is fixedly mounted on the protective cover, a support plate is rotatably mounted on the first rotating shaft, the support plate is fixedly connected to the rectifier body, a torsion spring is sleeved on the first rotating shaft, and both ends of the torsion spring are respectively connected to the protective cover and the mounting cover.

[0008] As a further optimization scheme of the present invention, a plurality of mounting grooves are provided on the limit box, and an extrusion mechanism is arranged inside the mounting groove. The extrusion mechanism includes a first magnetic plate, and the first magnetic plate is located inside the mounting groove and is slidably connected to the limit box. The first magnetic plate is connected to the limit box through a second spring, and a first extrusion column is fixedly connected to the top of the first magnetic plate. A limiting ring is arranged under the first magnetic plate, and the limiting ring is fixedly connected to the limit box. The first magnetic plate and the magnetic strip magnetically repel each other.

[0009] As a further optimization scheme of the present invention, the driving mechanism includes a first screw, which is rotatably connected to the mounting cover and the support plate, and the first screw and the first rotating shaft are both fixedly connected with pulleys, and the two pulleys are connected by a driving belt, and the first screw is threadedly connected to a first threaded block, and the first threaded block is fixedly connected to a telescopic assembly.

[0010] As a further optimization scheme of the present invention, the telescopic assembly includes an extension box, which is fixedly connected to the first threaded block, an extension column is slidably connected inside the extension box, the bottom of the extension column is connected to the extension box through a third spring, and a roller is rotatably installed on the top of the extension box.

[0011] As a further optimization scheme of the present invention, the positioning mechanism includes a fixed box, which is fixedly connected to the protective cover, a pull plate is slidably connected inside the fixed box, the pull plate is connected to the fixed box through a fourth spring, a pull block is fixedly connected to the pull plate, the pull block passes through the fixed box and is connected to the fixed box, the fixed box is connected to the drive tube through a pulling assembly, and the drive tube is fixedly connected to the first rotating shaft.

[0012] As a further optimization scheme of the present invention, the pulling assembly includes a connecting tube, both ends of which are respectively connected to a fixed box and a driving tube, a fixed plate is fixedly connected inside the connecting tube, the fixed plate is connected to the second extrusion column through a fifth spring, a pull rope is fixedly connected to the second extrusion column, and the pull rope passes through the fixed plate and is connected to the pull plate.

[0013] As a further optimization solution of the present invention, a limiting groove is provided on the limiting box, and the limiting groove is plugged into the second extrusion column.

[0014] As a further optimization scheme of the present invention, the adjusting mechanism includes a rotating frame, which is located inside the mounting cover and is rotatably connected to the mounting cover, the rotating frame is fixedly connected to the first gear, the first gear is meshed with a gear frame, one side of the gear frame is connected to the mounting cover through a seventh spring, and the other side of the gear frame is fixedly connected to a third magnetic plate, the third magnetic plate penetrates the mounting cover and is slidably connected to the mounting cover, a tooth groove is opened inside the first gear, a paddle plate is arranged inside the tooth groove, a second screw is fixedly installed on the paddle plate, a mounting plate is rotatably installed on the second screw, the mounting plate is fixedly connected to the mounting cover, a second threaded block is threadedly connected to the second screw, the second threaded block is fixedly connected to the friction block, the friction block is slidably connected to the mounting cover, and a second magnetic plate is fixedly connected to the slide plate, and the second magnetic plate and the third magnetic plate magnetically repel each other.

[0015] As a further optimization scheme of the present invention, an inflation box is also fixedly installed on the mounting cover, and an inclined block is slidably connected inside the inflation box, and the inclined block is connected to the inflation box through a sixth spring. An airbag is arranged above the inflation box, and both ends of the airbag are fixedly connected with air pipes, and the two air pipes are respectively connected to the inflation box and the air horn at opposite ends, and the air horn is fixedly connected to the mounting cover, and a valve is installed on the air pipe above the airbag, and an air intake pipe is fixedly connected to the inflation box, and both the air intake pipe and the air pipe below the airbag are installed with one-way valves, and a third extrusion column is slidably connected to the inflation box, and the third extrusion column is fixedly connected to the first threaded block.

[0016] The beneficial effects of the present invention are: 1. The high-frequency transformer rectifier described in the present invention utilizes the interaction between the first spring, the friction plate, the magnetic strip, the first magnetic plate, the friction block and other components, so that the protective cover can be automatically reset within a certain period of time after each opening, even if the staff forgets to manually reset it due to being busy, thereby effectively avoiding the situation where the protective cover is always in an open state, ensuring the protective effect of the connector, and improving the safety and standardization of the overall use of the equipment. The reset of the protective cover is suitable for a variety of flipped angles. The operator can flexibly select the opening angle of the protective cover according to the actual space size, which is convenient for wiring the rectifier body in a small space, enhancing the adaptability and ease of operation of the equipment in different use environments. No electronic equipment such as a motor and a controller is used for the positioning and reset of the protective cover, thereby reducing the use of circuits, so that it has better anti-interference and durability.

[0017] 2. The high-frequency transformer rectifier described in the present invention is designed with the roughness of the bottom of the friction plate decreasing from left to right, which matches the gradually decreasing release of the first spring tension, and combined with the dynamic adjustment of the position of the friction block by the adjustment mechanism, it ensures that there is always a fixed friction force between the friction plate and the friction block, so that the protective cover can move at a uniform speed during the resetting process, avoiding problems such as uneven resetting, too fast or too slow resetting caused by factors such as unstable friction force and changes in spring tension, and realizing automatic resetting accurately and stably.

[0018] 3. The high-frequency transformer rectifier described in the present invention, by adding components such as an air horn, an air bag, and a valve, can make the air horn continue to make sounds as the related mechanical structures are linked after the protective cover is opened, which serves as a reminder and further reminds the staff to manually reset the protective cover, thereby reducing the possibility of forgetting to reset due to negligence, and helping to better maintain the normal state and use order of the equipment. The prompt of the air horn and the automatic resetting of the protective cover are matched with each other, which can further ensure that the connector can be protected by the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the mounting cover of the present invention; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 It is a schematic diagram of the internal structure of the limit box of the present invention; Figure 5 yes Figure 4 Enlarged view of point B in the middle; Figure 6 It is a schematic diagram of the connection between the extension box and the extension column of the present invention; Figure 7 It is a structural schematic diagram of the regulating mechanism of the present invention; Figure 8 It is a schematic structural diagram of the limit box of the present invention; Fig. 9 It is a structural schematic diagram of the friction plate of the present invention; Fig.10 It is a schematic diagram of the internal structure of the fixing box of the present invention; Fig.11 It is a schematic diagram of the internal structure of the connecting pipe of the present invention; Fig.12 It is a schematic diagram of the connection between the air horn and the inflation box of the present invention; Fig.13 It is a schematic diagram of the internal structure of the inflation box of the present invention.

[0020] In the figure: 1, rectifier body; 2, mounting cover; 3, protective cover; 401, first rotating shaft; 402, torsion spring; 403, limit box; 405, driving belt; 406, pulley; 407, driving pipe; 408, slide plate; 409, extension box; 410, first screw; 411, first threaded block; 412, support plate; 413, first spring; 414, first sliding column; 415, magnetic strip; 416, first extrusion column; 417, second spring; 418, first magnetic plate; 419, limit ring; 420, roller; 421, extension column; 422, third spring; 423, limit groove; 424, friction plate; 501, fixing box; 502, connecting pipe ;503, pull rope;504, pull plate;505, pull block;506, fourth spring;507, fixed plate;508, fifth spring;509, second extrusion column;601, third extrusion column;602, air horn;603, valve;604, air bag;605, inflation box;606, air pipe;607, tilting block;608, sixth spring;609, air intake pipe;701, second magnetic plate;702, friction block;703, second screw;704, first threaded block;705, mounting plate;706, seventh spring;707, rotating frame;708, toggle plate;709, gear rack;710, third magnetic plate;711, first gear;8, connector. DETAILED DESCRIPTION

[0021] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that the discussion of these implementations is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Various examples may omit, replace, or add various processes or components as needed. In addition, the features described in some examples may also be combined in other examples.

[0022] like Figures 1 to 13 As shown, a high-frequency transformer rectifier according to an embodiment of the present invention comprises a rectifier body 1 equipped with a connector 8, a mounting cover 2 is fixedly mounted on the rectifier body 1, a limit box 403 is fixedly mounted on the mounting cover 2, a first sliding column 414 is slidably connected inside the limit box 403, a plurality of magnetic strips 415 are fixedly mounted on the first sliding column 414, a friction plate 424 is fixedly connected to the bottom of the first sliding column 414, the roughness of the bottom of the friction plate 424 decreases from left to right, a slide plate 408 is fixedly connected to the bottom of the friction plate 424, the slide plate 408 is slidably connected to the limit box 403, the slide plate 408 is connected to the mounting cover 2 through a first spring 413, a plurality of mounting grooves are provided on the limit box 403, and a plurality of magnetic strips 415 are fixedly mounted inside the mounting grooves. A squeezing mechanism is provided, a first rotating shaft 401 is provided between the two mounting covers 2, a support plate 412 is rotatably installed on the first rotating shaft 401, the support plate 412 is fixedly connected to the rectifier body 1, a protective cover 3 is fixedly installed on the first rotating shaft 401, the protective cover 3 blocks the connector 8, a friction block 702 is provided inside the mounting cover 2, a positioning mechanism is provided on the protective cover 3, the positioning mechanism is connected to the first rotating shaft 401, a driving mechanism is provided on the first rotating shaft 401, the positioning mechanism cooperates with the driving mechanism to flip the protective cover, and after the connector 8 is connected, the protective cover 3 is automatically closed; an adjusting mechanism is provided on the friction block 702, when the protective cover 3 is flipped, the adjusting mechanism drives the gap between the friction plate 424 and the friction block 702 to decrease.

[0023] Please refer to Figure 5 The extrusion mechanism includes a first magnetic plate 418, which is located inside the mounting groove and is slidably connected to the limit box 403. The first magnetic plate 418 is connected to the limit box 403 through a second spring 417. A first extrusion column 416 is fixedly connected to the top of the first magnetic plate 418. A limit ring 419 is arranged under the first magnetic plate 418. The limit ring 419 is fixedly connected to the limit box 403. The first magnetic plate 418 and the magnetic strip 415 magnetically repel each other.

[0024] Please refer to Figure 2 , Figure 3 , Figure 6 The driving mechanism includes a first screw 410, which is rotatably connected to the mounting cover 2 and the support plate 412. The first screw 410 and the first rotating shaft 401 are both fixedly connected with pulleys 406, and the two pulleys 406 are connected through a driving belt 405. The first screw 410 is threadedly connected with a first threaded block 411, and the first threaded block 411 is fixedly connected with a telescopic component; the telescopic component includes an extension box 409, which is fixedly connected to the first threaded block 411, and an extension column 421 is slidably connected inside the extension box 409. The bottom of the extension column 421 is connected to the extension box 409 through a third spring 422, and a roller 420 is rotatably installed on the top of the extension box 409.

[0025] Please refer to Figure 2 , Figure 3 , Fig.10 , Fig.11 The positioning mechanism includes a fixed box 501, which is fixedly connected to the protective cover 3. A pull plate 504 is slidably connected inside the fixed box 501. The pull plate 504 is connected to the fixed box 501 through a fourth spring 506. A pull block 505 is fixedly connected to the pull plate 504. The pull block 505 penetrates the fixed box 501 and is connected to the fixed box 501. The fixed box 501 is connected to the drive tube 407 through a pulling component. The drive tube 407 is fixedly connected to the first rotating shaft 401; the pulling component includes a connecting tube 502. Both ends of the connecting tube 502 are respectively connected to the fixed box 501 and the drive tube 407. A fixed plate 507 is fixedly connected inside the connecting tube 502. The fixed plate 507 is connected to the second extrusion column 509 through a fifth spring 508. A pull rope 503 is fixedly connected to the second extrusion column 509. The pull rope 503 penetrates the fixed plate 507 and is connected to the pull plate 504.

[0026] Please refer to Figure 8 The limiting box 403 is provided with a limiting groove 423, and the second extrusion column 509 is plugged into the limiting groove 423. The setting of the limiting groove 423 facilitates the protective cover 3 to be stable and unchanged when protecting the connector 8.

[0027] Please refer to Figure 2 A torsion spring 402 is sleeved on the first rotating shaft 401, and the two ends of the torsion spring 402 are respectively connected to the protective cover 3 and the mounting cover 2. The setting of the torsion spring 402 can make the protective cover 3 have a resetting force after the limit is cancelled, so as to facilitate the automatic resetting of the protective cover 3.

[0028] The present invention uses the combination of the first spring 413, the friction plate 424, the magnetic strip 415, the first magnetic plate 418, and the friction block 702 to enable the protective cover 3 to automatically reset within a certain period of time after each opening, so as to avoid the protective cover 3 being forgotten to be closed and always in the open state. The specific scheme is as follows: when the terminal in the connector 8 on the rectifier body 1 needs to be connected to the wire, the pull block 505 can be pulled to make the pull block 505 drive the pull plate 504 to move, and the pull plate 504 cancels the limit of the second extrusion column 509 through the pull rope 503, so that the protective cover 3 can be turned over, and when the protective cover 3 moves to the designated release pull block 505, the second extrusion column 509 will be plugged into another installation slot to play a fixing effect, which is convenient for the user to operate. After the protective cover 3 is fixed, the wire can be connected to the terminal. After the connection is completed, the pull block 505 can be pulled continuously to cancel the limit of the protective cover 3, thereby facilitating resetting. However, the staff often forgets to reset the protective cover 3 due to being busy. However, during the rotation of the protective cover 3, the first rotating shaft 401 will move the first screw 410 through the pulley 406 and the driving belt 405, so that the roller 420 will drive the slide plate 408 to move, thereby the magnetic strip 415 and the friction plate 424 will move. When the protective cover 3 is flipped and positioned, the roller 420 will move to the right side of the slide plate 408, so that the slide plate 408 will drive the friction plate 424 and the magnetic strip 415 to move under the action of the first spring 413. Due to the setting of the friction block 702, the movement of the friction plate 424 and the magnetic strip 415 will be slow, and the roughness of the bottom of the friction plate 424 decreases from left to right, which just matches the gradually decreasing release of the tension of the first spring 413, so that the friction plate 424 and the magnetic strip 415 can move at a uniform speed. The movement of the torsion spring 402 can effectively avoid the phenomenon that the friction plate 424 and the magnetic strip 415 cannot be reset due to the decreasing tension of the first spring 413 and the unchanged friction force, and also avoids the phenomenon that the tension of the first spring 413 is too large, which quickly resets the friction plate 424 and the magnetic strip 415. After the friction plate 424 and the magnetic strip 415 are reset, the magnetic strip 415 acts on the first magnetic plate 418 to make the first squeezing column 416 squeeze the second squeezing column 509, so that the protective cover 3 loses its limit. In this way, the reset can be completed under the action of the torsion spring 402, and the problem that the staff forgets to reset the protective cover 3 after it is opened is effectively avoided. The reset of the protective cover 3 is suitable for a variety of angles at which the protective cover 3 is flipped, so that the rectifier body 1 can be conveniently operated in a small space, and the opening angle of the protective cover 3 can be selected according to the size of the space.

[0029] Please refer to Figure 4 , Figure 7 The adjusting mechanism includes a rotating frame 707, which is located inside the mounting cover 2 and is rotatably connected to the mounting cover 2. A first gear 711 is fixedly connected to the rotating frame 707, and a gear rack 709 is meshed with the first gear 711. One side of the gear rack 709 is connected to the mounting cover 2 through the seventh spring 706, and the other side of the gear rack 709 is fixedly connected to the third magnetic plate 710. The third magnetic plate 710 penetrates the mounting cover 2 and is slidably connected to the mounting cover 2. A tooth groove is opened inside the first gear 711, and the tooth groove is A toggle plate 708 is provided on the toggle plate 708, a second screw 703 is fixedly mounted on the toggle plate 708, a mounting plate 705 is rotatably mounted on the second screw 703, the mounting plate 705 is fixedly connected to the mounting cover 2, a second threaded block 704 is threadedly connected to the second screw 703, the second threaded block 704 is fixedly connected to the friction block 702, the friction block 702 is slidably connected to the mounting cover 2, a second magnetic plate 701 is fixedly connected to the slide plate 408, and the second magnetic plate 701 and the third magnetic plate 710 magnetically repel each other.

[0030] The setting of the second screw 703 can make the friction block 702 always in close contact with the friction plate 424, so that the friction plate 424 is always in a fixed friction force with the friction block 702, so as to control the uniform speed reset of the protective cover 3. Specific implementation method: in the process of the slide plate 408 driving the friction plate 424 to move, the second magnetic plate 701 will also move. When the second magnetic plate 701 moves to the specified position, the second magnetic plate 701 will act on the third magnetic plate 710, so that the second magnetic plate 701 drives the gear rack 709 to squeeze the seventh spring 706, so that the gear rack 709 will drive the first gear 711 to rotate. When there is a gap between the friction block 702 and the friction plate 424, the friction block 702 will rotate the second screw 703 due to the rotation of the first gear 711, and the second screw 703 will move the friction block 702 upward, so that it continues to be in close contact with the friction plate 424. There is no gap between the friction block 702 and the friction plate 424, and it will not affect the movement of the slide plate 408. Due to the setting of the seventh spring 706, the gear rack 709 can be reset after the second magnetic plate 701 is removed without the second screw 703 rotating, which is convenient for continued use next time. In this way, each time the protective cover 3 is opened, the friction plate 424 can be ensured to be in close contact with the friction block 702, thereby ensuring the reset time of the protective cover 3 and ensuring that there is enough time for the staff to connect the wires.

[0031] Please refer to Figure 2 , Fig.12 , Fig.13 , an inflatable box 605 is also fixedly installed on the mounting cover 2, and an inclined block 607 is slidably connected inside the inflatable box 605, and the inclined block 607 is connected to the inflatable box 605 through a sixth spring 608. An air bag 604 is arranged above the inflatable box 605, and air pipes 606 are fixedly connected at both ends of the air bag 604. The two air pipes 606 are respectively connected to the inflatable box 605 and the air horn 602 at opposite ends. The air horn 602 is fixedly connected to the mounting cover 2, and a valve 603 is installed on the air pipe 606 above the air bag 604. An air inlet pipe 609 is fixedly connected to the inflatable box 605, and a one-way valve is installed on the air inlet pipe 609 and the air pipe 606 located below the air bag 604. A third extrusion column 601 is slidably connected to the inflatable box 605, and the third extrusion column 601 is fixedly connected to the first threaded block 411.

[0032] The arrangement of the air horn 602, the air bag 604 and the valve 603 can make a sound after the protective cover 3 is opened until the protective cover 3 automatically resets and stops, so as to conveniently remind the staff to manually reset the protective cover 3. Specific implementation method: when the protective cover 3 is flipped over, the movement of the first threaded block 704411 will drive the third squeezing column 601 to move, and the movement of the third squeezing column 601 will squeeze the tilting block 607, so that the tilting block 607 can transport the gas in the inflation box 605 to the air bag 604, so that the air bag 604 will expand, and due to the effect of the one-way valve, the gas in the air bag 604 can only enter the air horn 602 through the valve 603, and by controlling the air output of the valve 603, gas can continuously enter the air horn 602, so that the air horn 602 can continuously make a sound, which can always serve as a reminder and further play the role of resetting the protective cover 3. When the slide plate 408 is reset, the tilting block 607 will also inhale and reset, which is convenient for the next air supply.

[0033] Working principle: when the terminal in the connector 8 on the rectifier body 1 needs to be connected with a wire, the pull block 505 can be pulled to make the pull block 505 drive the pull plate 504 to move. The movement of the pull plate 504 will pull the second extrusion column 509 through the pull rope 503, so that the second extrusion column 509 will be out of the limit groove 423, so that the protective cover 3 can be turned over. When the protective cover 3 moves to the designated release pull block 505, the second extrusion column 509 will be plugged into another installation groove to play a fixing effect. When the protective cover 3 is fixed, the wire can be connected to the terminal. When the connection is completed, the pull block 505 can be pulled continuously to cancel the limit of the protective cover 3, thereby facilitating resetting.However, the staff often forgets to reset the protective cover 3 due to being busy. During the rotation of the protective cover 3, the first rotating shaft 401 will move the first screw 410 through the pulley 406 and the connecting belt, and the first screw 410 will drive the first threaded block 411 to move, and the first threaded block 411 will drive the extension column 421 to move, and the extension column 421 will drive the slide plate 408 to move through the roller 420. As the slide plate 408 continues to move, the slide plate 408 will continue to enter the limit box 403, and the roller 420 will contact the limit box 403 and be squeezed down, so that the roller 420 will not contact the slide plate 408 and move to the right side of the slide plate 408. When the roller 420 The slide plate 408 moves to the right side, so that the slide plate 408 drives the friction plate 424 and the magnetic strip 415 to move under the action of the first spring 413. Due to the setting of the friction block 702, the friction plate 424 and the magnetic strip 415 move slowly, and the roughness of the bottom of the friction plate 424 decreases from left to right, which just matches the gradually decreasing release of the tension of the first spring 413, so that the friction plate 424 and the magnetic strip 415 can move at a uniform speed. When the friction plate 424 and the magnetic strip 415 are reset, the magnetic strip 415 acts on the first magnetic plate 418, so that the first magnetic plate 418 drives the first extrusion column 416 to squeeze the second extrusion column 509, cancels the limit of the protective cover 3, and makes the protective cover 3 The reset is completed under the action of the torsion spring 402, and during the movement of the slide plate 408, the second magnetic plate 701 is also driven to move. When the second magnetic plate 701 moves to the specified position, the second magnetic plate 701 acts on the third magnetic plate 710, so that the second magnetic plate 701 drives the gear rack 709 to squeeze the seventh spring 706, so that the gear rack 709 drives the first gear 711 to rotate. When there is a gap between the friction block 702 and the friction plate 424, the friction block 702 will cause the paddle plate 708 to drive the second screw 703 to rotate due to the rotation of the first gear 711, and the second screw 703 moves the friction block 702 upward through the second threaded block 704, thereby continuing to be in close contact with the friction plate 424. The friction block 702 and the friction plate 424 are in contact, and there is no gap between them, and the movement of the slide plate 408 is not affected. In this way, the friction plate 424 can be ensured to reset at a fixed speed. The movement of the slide plate 408 will also drive the third extrusion column 601 to move. The third extrusion column 601 squeezes the tilting block 607, so that the tilting block 607 transfers the gas in the inflatable box 605 to the air bag 604, so that the air bag 604 will expand. Due to the effect of the one-way valve, the gas in the air bag 604 can only enter the air horn 602 through the valve 603, and the gas output of the valve 603 is controlled, so that the air horn 602 continuously has gas entering, so that the air horn 602 can continuously make a sound. ;

[0034] The above describes an embodiment of the present invention, but this embodiment is not limited to the above specific implementation methods. The above specific implementation methods are merely illustrative and not restrictive. Under the guidance of this embodiment, ordinary technicians in this field can also make many forms, all of which are protected by this embodiment.

Claims

1. A high-frequency transformer rectifier, comprising a rectifier body (1) equipped with a connector (8), characterized in that: The rectifier body (1) is fixedly mounted with a mounting cover (2), a limit box (403) is fixedly mounted on the mounting cover (2), a first sliding column (414) is slidably connected inside the limit box (403), a plurality of magnetic strips (415) are fixedly mounted on the first sliding column (414), a friction plate (424) is fixedly connected to the bottom of the first sliding column (414), the roughness of the bottom of the friction plate (424) decreases from left to right, and a slide plate (408) is fixedly connected to the bottom of the friction plate (424). The slide plate (408) is connected to the mounting cover (2) via a first spring (413); a protective cover (3) is arranged between the two mounting covers (2); a friction block (702) is arranged inside the mounting cover (2); a positioning mechanism is arranged on the protective cover (3); the positioning mechanism is connected to the first rotating shaft (401); a driving mechanism is arranged on the first rotating shaft (401); the positioning mechanism cooperates with the driving mechanism to flip the protective cover (3); and after the connector (8) is connected, the protective cover (3) is automatically closed; The friction block (702) is provided with an adjustment mechanism, and when the protective cover (3) is turned over, the adjustment mechanism drives the gap between the friction plate (424) and the friction block (702) to decrease.

2. The high frequency transformer rectifier according to claim 1, characterized in that: A first rotating shaft (401) is fixedly mounted on the protective cover (3), a support plate (412) is rotatably mounted on the first rotating shaft (401), the support plate (412) is fixedly connected to the rectifier body (1), a torsion spring (402) is sleeved on the first rotating shaft (401), and two ends of the torsion spring (402) are respectively connected to the protective cover (3) and the mounting cover (2).

3. The high frequency transformer rectifier according to claim 1, characterized in that: The limit box (403) is provided with a plurality of installation slots, and an extrusion mechanism is arranged inside the installation slot. The extrusion mechanism comprises a first magnetic plate (418), the first magnetic plate (418) is located inside the installation slot and is slidably connected to the limit box (403), the first magnetic plate (418) is connected to the limit box (403) via a second spring (417), a first extrusion column (416) is fixedly connected to the top of the first magnetic plate (418), a limit ring (419) is arranged below the first magnetic plate (418), the limit ring (419) is fixedly connected to the limit box (403), and the first magnetic plate (418) and the magnetic strip (415) are magnetically repelled from each other.

4. The high frequency transformer rectifier according to claim 2, characterized in that: The driving mechanism comprises a first screw rod (410), the first screw rod (410) being rotatably connected to the mounting cover (2) and the support plate (412), a pulley (406) being fixedly connected to the first screw rod (410) and the first rotating shaft (401), the two pulleys (406) being connected via a driving belt (405), a first threaded block (411) being threadedly connected to the first screw rod (410), and a telescopic assembly being fixedly connected to the first threaded block (411).

5. The high frequency transformer rectifier according to claim 4, characterized in that: The telescopic assembly comprises an extension box (409), the extension box (409) being fixedly connected to a first threaded block (411), an extension column (421) being slidably connected inside the extension box (409), the bottom of the extension column (421) being connected to the extension box (409) via a third spring (422), and a roller (420) being rotatably mounted on the top of the extension box (409).

6. The high frequency transformer rectifier according to claim 1, characterized in that: The positioning mechanism comprises a fixed box (501), the fixed box (501) is fixedly connected to the protective cover (3), a pulling plate (504) is slidably connected inside the fixed box (501), the pulling plate (504) is connected to the fixed box (501) via a fourth spring (506), a pulling block (505) is fixedly connected to the pulling plate (504), the pulling block (505) passes through the fixed box (501) and is connected to the fixed box (501), the fixed box (501) is connected to a driving tube (407) via a pulling assembly, and the driving tube (407) is fixedly connected to the first rotating shaft (401).

7. The high frequency transformer rectifier according to claim 6, characterized in that: The pulling assembly comprises a connecting tube (502), the two ends of which are respectively connected to a fixing box (501) and a driving tube (407), a fixing plate (507) is fixedly connected inside the connecting tube (502), the fixing plate (507) is connected to a second extrusion column (509) via a fifth spring (508), a pull rope (503) is fixedly connected to the second extrusion column (509), and the pull rope (503) passes through the fixing plate (507) and is connected to the pulling plate (504).

8. The high frequency transformer rectifier according to claim 6, characterized in that: The limiting box (403) is provided with a limiting groove (423), and the limiting groove (423) is plugged into the second extrusion column (509).

9. The high frequency transformer rectifier according to claim 1, characterized in that: The adjustment mechanism comprises a rotating frame (707), wherein the rotating frame (707) is located inside the mounting cover (2) and is rotatably connected to the mounting cover (2), wherein a first gear (711) is fixedly connected to the rotating frame (707), wherein a gear rack (709) is meshed with the first gear (711), wherein one side of the gear rack (709) is connected to the mounting cover (2) via a seventh spring (706), wherein the other side of the gear rack (709) is fixedly connected to a third magnetic plate (710), wherein the third magnetic plate (710) passes through the mounting cover (2) and is slidably connected to the mounting cover (2), wherein a tooth groove is provided inside the first gear (711), wherein the tooth groove A paddle plate (708) is provided inside, a second screw rod (703) is fixedly mounted on the paddle plate (708), a mounting plate (705) is rotatably mounted on the second screw rod (703), the mounting plate (705) is fixedly connected to the mounting cover (2), a second threaded block (704) is threadedly connected to the second screw rod (703), the second threaded block (704) is fixedly connected to the friction block (702), the friction block (702) is slidably connected to the mounting cover (2), a second magnetic plate (701) is fixedly connected to the slide plate (408), and the second magnetic plate (701) and the third magnetic plate (710) are magnetically repelling each other.

10. The high frequency transformer rectifier according to claim 4, characterized in that: An inflatable box (605) is also fixedly mounted on the mounting cover (2). A tilting block (607) is slidably connected inside the inflatable box (605). The tilting block (607) is connected to the inflatable box (605) via a sixth spring (608). An air bag (604) is arranged above the inflatable box (605). Both ends of the air bag (604) are fixedly connected to air pipes (606). The two ends of the air pipes (606) that are separated from each other are respectively connected to the inflatable box (605) and the air horn (602). The air horn (602) is fixedly connected to the mounting cover (2); a valve (603) is installed on the air supply pipe (606) located above the air bag (604); an air intake pipe (609) is fixedly connected to the inflation box (605); both the air intake pipe (609) and the air supply pipe (606) located below the air bag (604) are installed with a one-way valve; a third extrusion column (601) is slidably connected to the inflation box (605); and the third extrusion column (601) is fixedly connected to the first threaded block (411).

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