Low-voltage intermediate frequency emergency rescue generator

By dynamically adjusting the corner plate structure and supplementing the cleaning with a conical shovel, the problem of poor cleaning effect of traditional scrapers in complex environments is solved, and the effective removal of multi-layered adhesive particles is achieved, improving the cleaning and heat dissipation performance of the heat dissipation system.

CN122437310APending Publication Date: 2026-07-21ZHEJIANG KAIRUI ELECTRIC POWER EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG KAIRUI ELECTRIC POWER EQUIPMENT CO LTD
Filing Date
2026-04-14
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional fixed-angle scrapers cannot effectively remove adhering particles from the surface of the air outlet grille in complex environments with sticky particles, resulting in reduced heat dissipation and an inability to dynamically adjust according to the strength of particle adhesion, leading to poor cleaning performance.

Method used

The corner plate structure, through the combination of double-headed lead screw, gear and torsion spring, dynamically adjusts the interaction angle and force between the corner outer plate and the air outlet grille plate. Combined with the conical shovel to clean the corner area, it can effectively remove multi-layered adhesive structures.

Benefits of technology

It improves the cleaning effect of the air outlet grille, reduces clogging, enhances the heat dissipation performance of the heat dissipation system, and adapts to the cleaning needs of complex environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention belongs to the technical field of emergency generator sets, specifically a low-voltage medium-frequency emergency rescue generator, including a corner plate. A heat dissipation unit is installed in the external space of the corner plate, an adjustment unit is installed at one end of the corner plate, and a cleaning unit is installed at the other end. This invention linearly changes the vertical distance between two opposing corner plates while simultaneously changing the initial angle between the corner plates and the axis of the rotating roller. This ensures the vertical working depth between the corner plates and the end faces of the "strips" that make up the single unit of the air outlet grille. Simultaneously, it gradient adjusts the working angle of the corner plates and linearly reduces the vertical distance between the end of the corner plate furthest from the axis of the rotating roller and the end face of the strip. This linearly deepens the interaction depth between the corner plates and the strips at different angles, adapting to multi-layer adhesive structures. It overcomes the limitation of traditional fixed-angle scrapers, where a single scraper blade can only work with loose surface solid particles, achieving deep shearing processing of the middle fiber winding layer and the bottom layer, thus improving the cleaning effect.
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Description

Technical Field

[0001] This invention belongs to the field of emergency generator set technology, specifically relating to a low-voltage medium-frequency emergency rescue generator. Background Technology

[0002] Emergency rescue generator sets: These are containerized emergency power supply equipment that integrates core components such as diesel or gasoline generator sets, control systems, fuel supply systems, cooling systems, and noise reduction systems into standard or customized containers. Use cases: Complex special environments (e.g., environments filled with solid particulate matter); The principle and process of external solid particles accumulating on the surface of the air outlet grille: Scenario 1: Lubricating oil mist and grease dust in industrial environments (e.g., leakage of lubrication systems in machining workshops or mining equipment). The grease on the surface of the aforementioned solid particles gradually forms a sticky film under the cumulative effect of time, causing the aforementioned solid particles to adsorb each other and adhere to the grille surface. Scenario 2: Solid particulate impurities such as cotton wool, plant fibers or chemical fiber dust. These impurities tend to accumulate on the end face of the grid strips, and at the same time, they act as "carriers" to adsorb other fine sticky particles, forming a mixed adhesive layer. In addition, the exhaust airflow of the air outlet grille itself has a certain pressure and velocity, which can "press" solid particles in the aforementioned environment onto the surface of the grille bars. In particular, fine particles are easily attached to the grille gaps due to airflow turbulence. Air outlet grille: guides hot air from the radiator tank out of the housing, while preventing large solid particles from entering the generator set; Blockage of the grille channel: The gaps inside the air outlet grille, which is composed of unidirectional array strips, are gradually filled with adhesive particles, especially the mixed accumulation of fibers and adhesive particles, which leads to a reduction in the exhaust cross-sectional area; hot air inside the radiator cannot be discharged in time, forming a "positive pressure zone" inside the box, which in turn leads to a serious decrease in the ventilation volume per unit cross-sectional area of ​​the radiator fan, affecting the heat dissipation effect; Traditional fixed-angle cleaning scrapers are a common mechanical structure for cleaning bar screens. However, in complex environments with adhesive particles, their interaction with the bar screen surface has a fundamental flaw: the bar screens are mostly flat rectangular cross-sections, and the fixed-angle scraper can only form effective contact with one edge of the bar screen. The middle area of ​​the bar screen surface suffers from insufficient force, making it difficult to peel off the adhesive particles. For example, when the scraper angle is 45°, the contact stress on the bar screen surface is concentrated at the edge, and the stress in the middle area is only half or even only one-third of that at the edge, which is insufficient to overcome the adhesive force between the solid particles. Furthermore, the scraping force of a scraper can generally be decomposed into "normal pressure perpendicular to the grid surface" and "tangential force parallel to the grid surface"—normal pressure is used to make the scraper blade adhere to the grid, and tangential force is used to peel off particles. However, the traditional fixed tilt angle cannot be dynamically adjusted according to the adhesion strength between solid particles: if the tilt angle is too large, the surge in normal pressure will lead to increased scraper wear and loss of tangential force (rapid dulling of the scraper blade and rapid decline in scraping ability); if the tilt angle is too small, insufficient normal pressure will result in the scraper blade not adhering tightly to the grid, and the tangential force cannot be effectively transmitted. Summary of the Invention

[0003] To solve the above problems, the present invention adopts the following technical solution: a low-voltage medium-frequency emergency rescue generator, including a corner plate, a heat dissipation unit is provided in the external space of the corner plate, an adjustment unit is provided at one end of the corner plate, and a cleaning unit is provided at the other end of the corner plate. The cleaning unit includes: The connecting plate is located on the outside of the corner plate axis; The corner plates are symmetrically snapped onto the middle of the end face of the connecting plate on the side away from the corner plate. There are two waist panels, which are symmetrically distributed on both sides of the connecting plate; in addition, the waist panels are installed with the corner panels by snap-fit. The slide rails are installed in pairs, symmetrically, on the side of the waist panel away from the corner plate. Ears, two in a group, are symmetrically and slidably snapped together and installed at both ends of the slide rail; A rotating roller is rotatably mounted between two opposing lugs. The outer corner plate is movably sleeved in the middle of the outer wall of the rotating roller; The corner rings are symmetrically fitted and installed at both ends of the outer wall of the roller; and the corner rings are located between the outer plates of the ear seat. Torsion springs are symmetrically sleeved and installed at both ends of the outer wall of the roller, and the torsion springs are respectively engaged with the corner rings and the outer wall of the corner plate.

[0004] Preferably, a double-ended lead screw is threadedly fitted between the two ear seats in the same group, and the threads at both ends of the double-ended lead screw rotate in opposite directions. A center gear is snapped into the middle position of the outer wall of the roller, a noodle frame is snapped into the outer wall of the waist panel, a base is snapped into the middle position of the horizontal section of the noodle frame near the corner plate, a center rack that meshes with the center gear is snapped into the middle position of the base near the middle position of the waist panel, and symmetrically distributed base columns are rotatably fitted between the two corner plates. Teethed pulleys that mesh with each other are snapped into the middle position of the outer wall of the base columns and the middle position of the outer wall of the double-ended lead screw. A toothed belt is meshed into the three toothed pulleys in the same group.

[0005] Preferably, symmetrically distributed main gears are snapped onto the outer walls of both ends of the roller. A base frame is snapped onto the middle position of the end face of the ear seat away from the corner plate. An end shaft is rotatably fitted through the middle position of the base frame. A sub-gear that meshes with the main gear is snapped onto the end of the end shaft away from the center gear. Pulleys are evenly snapped onto the outer wall of the end shaft away from the sub-gear and the outer wall of the roller, and the pulleys are meshed and snapped onto each other through corresponding toothed belts.

[0006] Preferably, the outer walls of the two corner plates away from the direction of gravity, on the side away from the axis of the rotating roller, are fitted with a main dust chamber, and the outer walls of the corner plates away from the axis of the rotating roller, on the other side, are fitted with a secondary dust chamber. The cross-sectional shape of the main dust chamber and the secondary dust chamber is triangular. A U-shaped tube is inserted into the middle of the end face of the main dust chamber and the secondary dust chamber near the connecting plate. The outer walls of the other two corner plates away from the axis of the rotating roller are fitted with air chambers in a symmetrical manner, and the cross-sectional shape of the air chambers is an isosceles trapezoid. The two air chambers in the same group are inserted into the middle of the end face of the side face near the connecting plate.

[0007] Preferably, the outer wall of the corner plate is uniformly provided with four corner grooves along its circumference. A shaft plate is coaxially mounted on the end face of the corner plate away from the connecting plate. The outer wall of the shaft plate is uniformly provided with arc grooves along its circumference, and the number and position of the arc grooves correspond one-to-one with the corner grooves. A T-joint column is slidably engaged with the inner wall of the arc groove and the corner groove at the corresponding position. A buckle is slidably engaged with the outer wall of the T-joint column away from the connecting plate. An electric telescopic rod is engaged with the outer wall of the electric telescopic rod away from the buckle. An end seat is engaged with the outer wall of the end seat away from the electric telescopic rod. A conical shovel is engaged with the end of the end seat away from the electric telescopic rod.

[0008] Preferably, the outer space of the corner plate is provided with a container body, and the four corners of the container body are respectively snapped and installed with unit frames. Ventilation louvers are snapped and installed on the outer wall of the vertical section of one side of the container body, and a container door is rotatably installed on the outer wall of the vertical section of the other side of the container body. The container door and the ventilation louvers are distributed vertically. The four unit frames are symmetrically and slidably snapped and installed with grille panels. On the side of the grille panels near the middle of the container body, there are four pillars that are slidably snapped and installed with the unit frames, and the number is two in a group.

[0009] Preferably, the heat dissipation unit includes: The protective plate is snap-fitted and installed on the opposite sides of the two opposing pillars; The radiator core is snap-fitted between the two protective plates in the same group and is evenly distributed in an array along the direction of gravity. The condenser is snap-fitted and installed on the end face of the two guard plates in the same group near the grille panel. The air outlet grille is snap-fitted and installed on the end face of the two main boards in the same group on the side away from the grille window panel; in addition, the air outlet grille is composed of multiple strips arrayed in a single direction, and the vertical distance between adjacent strips of the air outlet grille is greater than the vertical distance between the outer corner lines of the two opposite corner plates mentioned above. The water inlet chamber is installed at the end of the two protective plates in the same group that is away from the direction of gravity by means of a bracket snap-fit. The outlet chamber is located opposite the inlet chamber, and the outlet chamber is installed with a snap-fit ​​connection to the protective plate. The radiator fan is located on the side of the radiator core away from the grille panel. Angle steel columns, four in number, in pairs, are snap-fitted and installed between the four corners of the radiator fan and the grille panel; Four angle steel plates are installed between the support column and the grille panel using a snap-fit ​​mechanism.

[0010] Preferably, the adjustment unit includes: The electric rail beam has a U-shaped cross-section and is installed between the cooling fan and the radiator core using a sliding snap-fit ​​mechanism. The movable plate is installed on the end face of the electric rail beam plate near the radiator core by sliding and snapping. The end plate is snap-fitted and installed in the middle of the end face of the movable plate on the side away from the rail beam. Two guide rails are installed symmetrically and snapped together at the middle of the end face of the end plate on the side away from the movable plate. An empty plate is snapped in place between two guide rails; An electric telescopic cylinder is snapped into the middle position of one end face of the empty plate. The slotted seat is snap-fitted and installed at the end of the electric telescopic cylinder furthest from the end plate; The flat angle seat is snapped into place between the horizontal sections of the mortise seat, and the flat angle seat is slidably fitted with the slide rail. The bearing seat is installed in the middle of the end of the flat angle seat away from the end plate by a snap-fit ​​connection with the connecting plate. The bearing seat and the angle plate are installed in a through snap-fit ​​connection. The bearing seat and the connecting plate are snap-fit ​​connection. The bearing seat and the shaft plate are rotatably connected.

[0011] Preferably, the cone spade undergoes a draft treatment, meaning that the cross-section of the cone spade at the end furthest from the electric telescopic rod increases in a gradient with the cross-section at the end closest to the electric telescopic rod.

[0012] A gradient cleaning method for the surface of the internal air intake grille of an emergency rescue generator set, using one of the aforementioned low-voltage medium-frequency emergency rescue generators, is described in the following steps: S1: First, the flat corner seat moves the shaft seat towards the target air outlet grille under the control of the electric telescopic cylinder until the four corner plates are simultaneously located between a group of adjacent strips between the air outlet grilles (the relative feed depth between the two is determined by the electric telescopic cylinder). Before this, the operator moves the external snap-on cleaning scraper or brush to the corner plate away from the axis of the rotating roller to make it movable and snapped or replaced, so as to achieve different cleaning methods. S2: Then, through the meshing between the toothed pulley and the toothed belt, the double-ended screw is rotated, which controls the ear seat to drive the outer plates of the corner to move towards a predetermined position. Specifically, the base column can be rotated by an external motor to a predetermined angle or number of turns. During this process, through the continuous synchronous meshing between the center gear and the center rack, the corner outer plates move in opposite directions to a predetermined angle as the ear seats move towards each other. At the same time, through the synchronous meshing of the main gear and the sub-gear, the corner ring is controlled by the pulley to change the initial pre-torsion angle of the torsion spring, thereby gradually adjusting the degree of interaction between the corner outer plates and the end face of the aforementioned air outlet grille component unit "strip". Furthermore, the aforementioned cleaning scheme (the interaction between the external cleaning scraper or brush at the end of the corner plate and the air outlet grille) can be adjusted by changing the gradient of the rotation angle of the double-headed screw. This allows for equal adjustment of the relative interaction between the corner plate and the air outlet grille unit "strip" at different positions or during different processing time periods. For example, based on each complete interaction between the corner plate and the air outlet grille unit, the initial pre-torsion angle and working torsion of the torsion spring can be linearly changed to achieve a more flexible composite gradient combination. This breaks the limitations of traditional fixed-angle scraper operation and improves the cleaning effect and degree of cleaning. S3: Finally, the electric telescopic rod controls the end seat, driving the conical shovel to perform supplementary scraping and cleaning on the four corners and dead corners of the aforementioned air outlet grille unit "strip". In specific implementation, the movable card plate controls the end plate to drive the cleaning unit to move back and forth along the length of the aforementioned air outlet grille unit "strip" to the predetermined area. Furthermore, the rotation angle difference between the shaft plate and the corner plate can cause the T-joint column to drive the electric telescopic rod to move a predetermined distance along the center line of the adjacent "strip" corners under the combined guiding action of the arc groove and the corner groove, thereby realizing the linear feed-type deep cutting processing of the aforementioned corner dead corner area by the conical shovel.

[0013] The present invention has the following beneficial effects: This invention linearly changes the vertical distance between two opposing outer corner plates through the threaded assembly relationship between the double-ended lead screw and the ear seat. Simultaneously, through the continuous meshing between the center gear and the center rack, the initial angle between the outer corner plates and the axis of the rotating roller is changed synchronously. This ensures the vertical working depth between the outer corner plates and the end face of the "strip" unit of the air outlet grille. At the same time, the working tilt angle of the outer corner plates is adjusted in a gradient, and the vertical distance between the end of the outer corner plates away from the axis of the rotating roller and the end face of the strip is linearly reduced. This linearly deepens the interaction depth between the outer corner plates and the strips at different tilt angles. It is suitable for multi-layer adhesive structures and solves the limitation of traditional fixed-angle scrapers that can only work with loose solid particles on the surface with a single scraping blade. It enables the cutting and processing of the middle fiber winding layer and the bottom layer, improves the cleaning effect, reduces the blockage of the air outlet grille port, and improves the heat dissipation performance of the heat dissipation system.

[0014] This invention utilizes the synchronicity of the rotation between the main gear and the rotating shaft to cause the intermediate gear to control the pulley at the same end to move in the opposite direction to the aforementioned roller. Simultaneously, by using the module difference between the main gear and the intermediate gear, the difference in rotation angle between the pulley and the roller is proportionally enhanced, achieving an angle rotation with the corner ring and roller moving in opposite directions and with a significantly enhanced angle. This gradient changes the initial pre-torsion of the torsion spring, linearly adapting to the function of increasing elastic potential energy when the angle plate and the strip plate's working inclination angle decrease. This further enhances the interaction between the external cleaning scraper or brush controlled by the angle plate and the strip plate, improving the overall cleaning effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is an appendix to the present invention. Figure 1 Internal structure diagram of the central structure.

[0017] Figure 3 This is a three-dimensional structural diagram of the heat dissipation unit in this invention.

[0018] Figure 4 This is an appendix to the present invention. Figure 3 A three-dimensional view of a partial structure of the central part.

[0019] Figure 5 This is an appendix to the present invention. Figure 4 Right view of the middle structure.

[0020] Figure 6 This is a three-dimensional structural diagram of the adjustment unit and cleaning unit in this invention.

[0021] Figure 7 This is a three-dimensional structural diagram of the cleaning unit in this invention.

[0022] Figure 8 This is an appendix to the present invention. Figure 7 Top view of the structure.

[0023] Figure 9 This is a three-dimensional view of another part of the cleaning unit structure of the present invention.

[0024] Figure 10 This is an appendix to the present invention. Figure 9 A three-dimensional view of a partial structure.

[0025] Figure 11 This is an appendix to the present invention. Figure 10 Partial plan view of the structure.

[0026] Figure 12 This is a three-dimensional view of the corner plate and its partial structure of the present invention.

[0027] The diagram is labeled as follows: 1. Corner plate; 2. Heat dissipation unit; 3. Adjustment unit; 4. Cleaning unit. 11. Container body; 12. Unit frame; 13. Ventilation louvers; 14. Container door; 15. Grille panel; 16. Support column; 21. Protective plate; 22. Radiator core; 23. Condenser; 24. Air outlet grille; 25. Water inlet chamber; 26. Water outlet chamber; 27. Radiator fan; 28. Angle steel column; 29. ​​Angle steel plate; 31. Electric rail beam plate; 32. Movable clamping plate; 33. End plate; 34. Guide rail; 35. Empty plate; 36. Electric telescopic cylinder; 37. Chamfered clamping seat; 38. Flat angle seat; 39. Shaft seat; 41. Connecting plate; 42. Corner plate; 43. Waist panel; 44. Slide rail; 45. Ear seat; 46. Rotary roller; 47. Outer corner plate; 48. Corner ring; 49. Torsion spring; 411. Double-ended lead screw; 412. Mid-position gear; 413. Surface support; 414. Base; 415. Mid-position rack; 416. Base column; 417. Toothed pulley; 418. Toothed belt; 421. Main gear; 422. Base frame; 423. End shaft; 424. Split gear; 425. Pulley; 431. Main dust bin; 432. Secondary dust bin; 433. U-shaped duct; 434. Air chamber; 435. Air duct; 441. Corner groove; 442. Shaft disc; 443. Arc groove; 444. T-joint column; 445. Buckle ring; 446. Electric telescopic rod; 447. End seat; 448. Conical shovel. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] It should be noted that the terms "vertical," "horizontal," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0030] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0031] Reference Figure 2 and Figure 6 It is known that a low-voltage medium-frequency emergency rescue generator includes a corner plate 1, a heat dissipation unit 2 is provided in the external space of the corner plate 1, an adjustment unit 3 is provided at one end of the corner plate 1, and a cleaning unit 4 is provided at the other end of the corner plate 1. Reference Figure 1 , Figure 2 and Figure 3 It can be seen that a container body 11 is set in the external space of the corner plate 1. The four corners of the container body 11 are respectively fitted with the unit frame 12. A ventilation louver 13 is fitted with the vertical section of the outer wall of one side of the container body 11. A door 14 is rotatably fitted with the vertical section of the outer wall of the other side of the container body 11. The door 14 and the ventilation louver 13 are vertically distributed. The four unit frames 12 are symmetrically fitted with the grille window 15. The grille window 15 is set with four support columns 16 that are slidably fitted with the unit frame 12 on the side of the grille window 15 closest to the middle of the container body 11. The number of columns is four, and they are in groups of two. Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 It is known that the heat dissipation unit 2 includes: a protective plate 21, which is snap-fitted and installed on the opposite faces of two opposing pillars 16; a radiator core 22, which is snap-fitted and installed between two protective plates 21 in the same group and is evenly distributed in an array along the direction of gravity; a condenser 23, which is snap-fitted and installed on the end face of the two protective plates 21 in the same group near the grille plate 15; and an air outlet grille 24, which is snap-fitted and installed on the end face of the two main plates in the same group away from the grille plate 15. In addition, the air outlet grille 24 is composed of multiple strips arrayed in a single direction, and the vertical distance between adjacent strips of the air outlet grille 24 is greater than the vertical distance between the outer corner lines of the two opposing outer corner plates 47. The water inlet chamber 25 is installed at the end of the two protective plates 21 in the same group away from the direction of gravity by means of a bracket; the water outlet chamber 26 is distributed opposite to the water inlet chamber 25 and is installed with the protective plate 21 by means of a bracket; the radiator fan 27 is located on the side of the radiator core 22 away from the grille plate 15; there are four angle steel columns 28, two in a group, which are installed between the four corners of the radiator fan 27 and the grille plate 15 by means of a bracket; there are four angle steel plates 29, which are installed between the support column 16 and the grille plate 15 by means of a bracket.

[0032] Simplified heat dissipation process for the Type 11 emergency rescue generator set (this application) in a container: Prerequisite: Considering the heat generated during engine operation; First, during normal operation of the engine unit, working heat is continuously released to the outside. Then, the heat is concentratedly absorbed by the internal coolant and a high-temperature coolant is formed. The high-temperature coolant is then continuously transported to the outlet chamber 26 through the external pipe and is evenly distributed by the outlet chamber 26 to the array-arranged radiator core 22 pipes. Next, the radiator fan 27 is started. During the rotation of the radiator fan 27, a negative pressure environment is continuously generated, thereby exchanging the cold air outside the container body 11 to the designated area. (The aforementioned cold air passes through the ventilation louvers 13 (which assists in ventilation and heat dissipation, and exhausts the hot air generated by the unit operation inside the container body 11 (locally), realizing a closed loop of "intake and exhaust" airflow) and the grille 15 (which filters solid particles with a relatively large cross-sectional area), then through the exhaust grille 24 (which filters solid particles with a relatively small cross-sectional area), and finally through the radiator core 22 (in specific implementation, the heat dissipation effect is further enhanced through the gaps between the fins and pipes inside the radiator core 22) and the exhaust grille 24 to the engine unit body). Finally, the cooled coolant flows out through the inlet chamber 25 and returns to the engine unit through an external pipe to continue absorbing residual heat, thus completing the closed-loop cooling cycle of the coolant. Condenser 23: The condenser 23 further supplements the heat exchange of the airflow or refrigerant that has not been sufficiently cooled, so as to fully ensure the overall heat dissipation effect of the heat dissipation system; Container body 11 and generator set frame 12: The container body 11 provides the internal generator set with relative protection from the effects of harsh external environments (rain, dust or impact), and can also serve as a modular carrier to reduce the difficulty of transportation and deployment to the destination. Meanwhile, the position of the grille 15 and the support column 16 is limited by the unit frame 12 to avoid misalignment of internal components (heat dissipation unit 2, adjustment unit 3 or cleaning unit 4) caused by the deformation of the container body 11, thereby improving the overall structural rigidity. Angle steel column 28 and angle steel plate 29: integrate radiator fan 27, radiator core 22 and condenser 23 to ensure that the aforementioned components form a stable heat dissipation system; Door 14: Provides a maintenance access for external users, making it convenient for subsequent operators to maintain and service the generator set, heat dissipation unit 2, adjustment unit 3 or cleaning unit 4 inside the enclosure, thus enhancing its practicality.

[0033] Reference Figure 7 , Figure 8 and Figure 12 It can be seen that the adjustment unit 3 includes: an electric rail beam plate 31 with a U-shaped cross-section, which is slidably snapped together and installed between the cooling fan and the radiator core 22; a movable latch plate 32, which is slidably snapped together and installed on the end face of the electric rail beam plate 31 near the radiator core 22; an end plate 33, which is snapped together and installed at the middle position of the end face of the movable latch plate 32 away from the electric rail beam plate 31; two guide rails 34, which are symmetrically snapped together and installed at the middle position of the end face of the end plate 33 away from the movable latch plate 32; and an empty plate 35, which is snapped together and installed between the two guide rails 34. The electric telescopic cylinder 36 is snapped into the middle of one end face of the empty plate 35; the slotted seat 37 is snapped into the end of the electric telescopic cylinder 36 away from the end plate 33; the flat angle seat 38 is snapped into the horizontal section of the slotted seat, and the flat angle seat 38 is slidably installed with the slide rail 44; the shaft seat 39 is snapped into the middle of the end of the flat angle seat 38 away from the end plate 33 through the connecting plate, and the shaft seat 39 is snapped into the angle plate 1 through the plate, the shaft seat 39 is snapped into the connecting plate 41, and the shaft seat 39 is rotatably installed with the shaft plate 442. Reference Figure 8 , Figure 9 , Figure 10 and Figure 11 It can be seen that the cleaning unit 4 includes: a connecting plate 41, which is set on the outer side of the corner plate 1 axis; a corner plate 42, which is symmetrically snapped onto the middle position of the end face of the connecting plate 41 away from the corner plate 1; two waist panels 43, which are symmetrically distributed on both sides of the connecting plate 41; in addition, the waist panels 43 are snapped onto the corner plates 42; and a slide rail 44, which is installed in pairs and symmetrically snapped onto the end face of the waist panels 43 away from the corner plates 42. Ear seats 45, two in a group, are symmetrically and slidably engaged at both ends of the slide rail 44; the rotating roller 46 is rotatably engaged between two opposing ear seats 45; the outer corner plate 47 is movably sleeved in the middle of the outer wall of the rotating roller 46; the corner ring 48 is symmetrically sleeved at both ends of the outer wall of the rotating roller 46, and the corner ring 48 is located between the ear seats 45 and the outer corner plate 47; the torsion spring 49 is symmetrically sleeved at both ends of the outer wall of the rotating roller 46, and the torsion spring 49 is engaged with the outer wall of the corner ring 48 and the outer corner plate 47 respectively. Reference Figure 9 and Figure 10 It can be seen that a double-ended screw 411 is installed between the two ear seats 45 in the same group with a common thread engagement, and the threads at both ends of the double-ended screw 411 rotate in opposite directions. A center gear 412 is snapped into the middle position of the outer wall of the roller 46. A noodle frame 413 is snapped into the outer wall of the waist panel 43. A base 414 is snapped into the middle position of the horizontal section of the noodle frame 413 near the corner plate 42. A center rack 415 that meshes with the center gear 412 is snapped into the middle position of the end face of the base 414 near the waist panel 43. A base column 416 that is symmetrically distributed is installed between the two corner plates 42 with a common rotational engagement. A toothed pulley 417 that meshes with each other is snapped into the middle position of the outer wall of the base column 416 and the middle position of the outer wall of the double-ended screw 411. A toothed belt 418 is installed between the three toothed pulleys 417 in the same group with a common meshing engagement. Reference Figure 9 , Figure 10 and Figure 11 It can be seen that the outer walls of both ends of the roller 46 are fitted with symmetrically distributed main gears 421. The middle position of the end face of the ear seat 45 away from the corner plate 42 is fitted with a base frame 422. The middle position of the base frame 422 is fitted with an end shaft 423 through a rotatable fit. The end of the end shaft 423 away from the middle gear 412 is fitted with a split gear 424 that meshes with the main gear 421. The outer wall of the end of the end shaft 423 away from the split gear 424 and the outer wall of the roller 46 are fitted with pulleys 425 evenly fitted with each other. The pulleys 425 are fitted with each other through corresponding toothed belts 418. Reference Figure 7 and Figure 9 It can be seen that the main dust chamber 431 is installed on one side of the outer wall of the two corner outer plates 47 away from the axis of the rotating roller 46, and the auxiliary dust chamber 432 is installed on the other side of the corner outer plates 47 away from the axis of the rotating roller 46. The cross-sectional shape of the main dust chamber 431 and the auxiliary dust chamber 432 is triangular. The U-shaped tube 433 is inserted into the middle of the end face of the main dust chamber 431 and the auxiliary dust chamber 432 near the connecting plate 41. The air chambers 434 are installed symmetrically on the outer walls of the other two corner outer plates 47 away from the axis of the rotating roller 46. The cross-sectional shape of the air chambers 434 is an isosceles trapezoid. The air ducts 435 are inserted into the middle of the end face of the two air chambers 434 in the same group near the connecting plate 41.

[0034] The control process of the adjustment unit 3 on the overall position of the cleaning unit 4 (the full-range processing process of the cleaning unit 4 on different groups of "strips" of the air outlet grille 24): Under the guiding support of the outer wall of the numerical section of the radiator fan 27, the electric rail beam 31 synchronously controls the movable card plate 32 to drive the cleaning unit 4 to move a predetermined distance along the gravity direction until the electric rail beam 31 moves from one end of the radiator fan 27 to the other end (with the gravity direction as the reference). In specific implementation, the electric rail beam 31 can be driven to move by an electric slider. The aforementioned movement of the electric rail beam 31 along the gravity direction is the Y-axis running path. Subsequently, under the control of the movable clamping plate 32, the end plate 33 synchronously drives the opposing guide rails 34 to reciprocate along the length of the electric rail beam plate 31 to a predetermined cycle (single reciprocating motion time or number of times). In specific implementation, the electric slider can provide the motion source power to the movable clamping plate 32, and the aforementioned motion path is X-axis motion. At the same time, the electric telescopic cylinder 36 controls the mortise and tenon joint 37 to drive the flat angle seat 38 to move to a predetermined depth in the direction of the radiator core 22 (the empty plate 35 provides a stable fixing environment for the electric telescopic cylinder 36, which to a certain extent reduces the vibration of the electric telescopic cylinder 36 itself and the resulting instability in the alignment accuracy between the cleaning unit 4 and the "strip"; at the same time, the slide rail 44 provides further stable guidance to the flat angle seat 38 to ensure the stability of the shaft seat 39 moving in the direction of the radiator core 22). It should be noted that the X and Y axis two-axis linkage machining path between the aforementioned electric rail beam plate 31 and the movable clamping plate 32 can be ensured by implanting an external program during implementation, so as to ensure the accuracy of the positive cutting between the cleaning unit 4 and the single-unit "strip" of the air outlet grille 24. The specific processing procedure between the corner outer plate 47 and adjacent "strips" in a single group (excluding the four corners) is explained using the corner outer plate 47 as an example, i.e., the current position of the corner outer plate 47 is the same as the position of its external cleaning scraper or brush: Special note: Assuming the longitudinal depth (width) between adjacent “strips” is 10 cm, when the four corner outer plates 47 cut into the adjacent “strips” at opposite angles, the depth can be adjusted in a gradient by the electric telescopic cylinder 36. That is, the working depth between the corner outer plate 47 and the “strip” is gradual and not a single overall operation. Prerequisite: In the initial state, the vertical distance between the four corner outer plates 47 along the direction of gravity is less than the vertical distance between adjacent "strips"; First, by using the meshing relationship between the toothed pulleys 417, the interaction depth between the double-ended lead screw 411 and the ear seat 45 at the corresponding positions is adjusted synchronously. In specific implementation, an external motor can be used to drive the base column 416 to rotate a predetermined number of turns or angle, thereby gradually changing the thread variation parameters between the double-ended lead screw 411 and the ear seat 45. Then, under the dual influence of the guide rail 44 and the thread engagement of the double-ended lead screw 411, the ear seat 45 synchronously controls the opposing rollers 46, driving the outer corner plates 47 to move towards each other to a predetermined area. (The distance of each single movement of the outer corner plate 47 is directly affected by the thread interaction depth between the double-ended lead screw 411 and the ear seat 45. In specific implementation, the "fine" vertical distance between the outer corner plate 47 and the "strip" surface can be adjusted with high precision by directly controlling the thread engagement clearance between the double-ended lead screw 411 and the ear seat 45.) Next, through the meshing between the center gear 412 and the center rack 415, the roller 46 is prompted to synchronously and gradually change the initial angle between the outer corner plate 47 and the axis of the roller 46 during its movement (for example, the initial working angle between the outer corner plate 47 and the "strip" is 45 degrees. When the outer corner plates 47 move towards each other, the initial working angle between the outer corner plate 47 and the "strip" is gradually increased due to the positional meshing relationship between the center gear 412 and the center rack 415. At the same time, the adjustment of the "initial" vertical gap between the outer corner plate 47 and the "strip" can be further adapted by changing the rotation angle of the outer corner plate 47. This adaptability strengthens the interaction depth between the outer corner plate 47 and the "strip"). That is, by reducing the parallel working surface component force along the scraping direction and increasing the vertical working surface component force, the overall effective scraping force is strengthened, and the overall cleaning processing depth is improved. Finally, through the reverse meshing assembly relationship between the main gear 421 and the interposition gear 424, the end shaft 423, under the image of the interposition gear 424, synchronously controls the pulley 425 to move in the opposite direction to the rotation of the roller 46. At the same time, through the synchronicity of the movement between the pulleys 425, the angle ring 48, in the process of rotating in the opposite direction to the rotation of the roller 46, causes the initial pre-torsion of the torsion spring 49 to be gradually changed. This adapts to the increase in elastic potential energy gradient under the linear enhancement of the working angle between the outer corner plate 47 and the "strip", further ensuring and strengthening the working depth between the outer corner plate 47 and the end face of the "strip". It adapts to the multi-layer adhesive structure, solves the limitation of the traditional fixed-angle scraper with a single scraping blade that can only work with loose solid particles on the surface, and realizes the cutting and processing of the middle fiber winding layer and the bottom layer, improving the cleaning and processing effect. A simplified process for collecting solid particulate impurities during the scraping and cleaning process: In specific implementation, a main dust chamber 431 and a secondary dust chamber 432 are respectively set on both sides of the two outer corner plates 47 facing away from the direction of gravity. Through the three-way conduction of the U-shaped tube 433, a stable negative pressure adsorption environment is provided to the main dust chamber 431 and the secondary dust chamber 432. In specific implementation, the U-shaped tube 433 and an external compressor can be connected through an external hose, and the aforementioned solid particulate impurities can be recycled through an external collection device. In addition, during implementation, an external auxiliary cleaning device can be used to clean the corner plate 47 in the return state, thereby ensuring the long-term operational effectiveness of the corner plate 47 (currently, the corner plate 47 replaces the cleaning scraper or brush). Similarly, through the linkage between the air chamber 434 and the air duct 435, and referring to the cooperation between the main dust chamber 431 and the auxiliary dust chamber 432 and the external dust collection device, the dust on the end face of the strip plate that is relatively close to the direction of gravity or the dust that has been scraped off is subjected to supplementary adsorption and recycling processing, which fully ensures the cleanliness of the strip plate surface, avoids the blockage of the air outlet end face of the air outlet grille 24, and improves the overall heat dissipation effect. It is hereby noted that the maximum vertical width between the outer corner plate 47 and the auxiliary dust bin 432 is less than the maximum working width of the cone shovel 448. This ensures that when the outer corner plate 47 moves to the corner area of ​​the strip, the limited contact distance between the auxiliary dust bin 432 and the corner will prevent the cleaning blind spots. The maximum working width of the cone shovel 448 can then fill in the aforementioned cleaning blind spots, ensuring the overall integrity of the cleaning.

[0035] Reference Figure 7 and Figure 12 It can be seen that four corner grooves 441 are evenly provided on the outer wall of the corner plate 1 along its circumference. The end face of the corner plate 1 away from the connecting plate 41 is coaxially mounted with a shaft plate 442. The outer wall of the shaft plate 442 is evenly provided with arc grooves 443 along its circumference. The number and position of the arc grooves 443 correspond one-to-one with the corner grooves 441. The inner walls of the arc grooves 443 and the corner grooves 441 at the corresponding positions slide and engage together. The device is equipped with a T-shaped column 444. The outer wall of the T-shaped column 444 away from the connecting plate 41 is snapped and fitted with a buckle 445 that is slidably fitted on the outer wall of the coaxial disc 442. The end of the T-shaped column 444 near the connecting plate 41 is snapped and fitted with an electric telescopic rod 446. The outer wall of the electric telescopic rod 446 away from the buckle 445 is snapped and fitted with an end seat 447. The end seat 447 away from the electric telescopic rod 446 is snapped and fitted with a conical shovel 448. The cone shovel 448 is subjected to draft treatment, that is, the cross-section of the cone shovel 448 at the end away from the electric telescopic rod 446 increases in a gradient with the cross-section of the cone shovel 448 at the end closer to the electric telescopic rod 446.

[0036] The conical shovel 448 performs supplementary cleaning of the four corner areas of adjacent single-group "strips" (and it is a layered cleaning process with gradient feed along the center line of the corners): First, the cleaning unit 4 is moved to the designated area by the adjustment unit 3, and the current position of the cone shovel 448 is located at the "farthest" processing point on one of the corners; Next, the shaft disk 442 is rotated at a predetermined angle by an external gear combination or an embedded motor. During this process, the T-joint column 444, under the combined guidance of the arc groove 443 and the corner groove 441, gradually changes the movement of the electric telescopic rod 446 along the aforementioned corner centerline towards the corner line (before this, the electric telescopic rod 446 controls the end rod to drive the conical shovel 448 to move in a feeding manner along the width direction of the "strip", ultimately achieving layered cleaning processing of the corner). Finally, the solid particles scraped off by the cone shovel 448 are recycled through the negative pressure environment created by the aforementioned air chamber 434 and air duct 435 and the externally connected compressor.

[0037] The working principle of a low-voltage medium-frequency emergency rescue generator provided by the present invention is as follows: First step: under the control of the electric telescopic cylinder 36, the flat corner seat 38 drives the shaft seat 39 to move towards the target air outlet grille 24 until the four corner outer plates 47 are simultaneously located between a group of adjacent strips of the air outlet grille 24 (the relative feeding depth between the two is determined by the electric telescopic cylinder 36). Before this, the operator moves the external snap-on cleaning scraper or brush to the end of the corner outer plate 47 away from the axis of the rotating roller 46 to make movable snap-on or replace it, so as to achieve different cleaning methods. Step 2: Then, through the meshing between the toothed pulley 417 and the toothed belt 418, the double-ended lead screw 411 is rotated, which controls the ear seat 45 to drive the outer corner plate 47 to move towards the predetermined position. Specifically, the base column 416 can be rotated by an external motor to a specified angle or number of turns. During this process, through the continuous synchronous meshing between the middle gear 412 and the middle rack 415, the corner outer plates 47 are caused to move in opposite directions to a predetermined angle when the ear seats 45 move towards each other. At the same time, through the synchronous meshing of the main gear 421 and the split gear 424, the corner ring 48 is controlled by the pulley 425 to change the initial pre-torsion angle of the torsion spring 49, thereby gradually adjusting the degree of interaction between the corner outer plates 47 and the end face of the aforementioned air outlet grille 24 component unit "strip". Furthermore, the aforementioned cleaning scheme (the interaction between the external cleaning scraper or brush at the end of the corner plate 47 and the air outlet grille 24) can be adjusted by changing the gradient of the rotation angle of the double-headed screw 411. This allows for equal adjustment of the relative interaction between the corner plate 47 at different positions or during different processing time periods and the "strips" that make up the air outlet grille 24. For example, based on each complete interaction between the corner plate 47 and the air outlet grille 24 unit, the initial pre-torsion angle and working torsion of the torsion spring 49 can be linearly changed to achieve a more flexible composite gradient combination. This breaks the limitations of traditional scraper fixed tilt angle operation and improves the cleaning effect and cleaning degree. Step 3: Finally, the electric telescopic rod 446 controls the end seat 447 to drive the conical shovel 448 to perform supplementary scraping and cleaning on the four corners of the single unit "strip" of the aforementioned air outlet grille 24. In specific implementation, the movable card plate 32 controls the end plate 33 to drive the cleaning unit 4 to move back and forth along the length of the aforementioned air outlet grille 24 unit "strip" to the predetermined area. Furthermore, the rotation angle difference between the shaft plate 442 and the corner plate 1 causes the T-joint column 444 to move the electric telescopic rod 446 along the gradient of the center line of the adjacent "strip" corners by the combined guiding action of the arc groove 443 and the corner groove 441, thereby realizing the linear feed-type deep cutting processing of the aforementioned corner dead area by the conical shovel 448.

[0038] The circuits and controls involved in this invention are all existing technologies and will not be described in detail here.

[0039] The above are merely embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A low-voltage medium-frequency emergency rescue generator, comprising a corner plate (1), characterized in that: The corner plate (1) is provided with a heat dissipation unit (2) in the external space, an adjustment unit (3) is provided at one end of the corner plate (1), and a cleaning unit (4) is provided at the other end of the corner plate (1). The cleaning unit (4) includes: Connecting plate (41) is set on the outside of the axis of the corner plate (1); Angle plate (42) is symmetrically snapped onto the middle of the end face of the connecting plate (41) on the side away from the angle plate (1); There are two waist panels (43), which are symmetrically distributed on both sides of the connecting plate (41); in addition, the waist panels (43) are snapped together with the corner plates (42). The slide rail (44) is installed in pairs and symmetrically on the end face of the waist panel (43) away from the corner plate (42); Ears (45) are installed in pairs, symmetrically and in a sliding snap-fit ​​configuration at both ends of the slide rail (44); The rotating roller (46) is rotatably mounted between two opposing lugs (45); The outer corner plate (47) is movably sleeved in the middle of the outer wall of the rotating roller (46); Angle rings (48) are symmetrically fitted and installed at both ends of the outer wall of the roller (46); and the angle rings (48) are located between the ear seat (45) and the outer plate (47). Torsion springs (49) are symmetrically sleeved and installed at both ends of the outer wall of the roller (46), and the torsion springs (49) are respectively engaged with the outer wall of the corner ring (48) and the outer corner plate (47).

2. The low-voltage medium-frequency emergency rescue generator according to claim 1, characterized in that: A double-ended lead screw (411) is installed between the two ear seats (45) in the same group, with the threads at both ends of the double-ended lead screw (411) rotating in opposite directions. A center gear (412) is snapped into the middle position of the outer wall of the roller (46). A noodle frame (413) is snapped into the outer wall of the waist panel (43). A base (414) is snapped into the middle position of the horizontal section of the noodle frame (413) near the corner plate (42). The base (414) is close to the waist panel (43). A center rack (415) that meshes with the center gear (412) is snapped into the middle position of one end face. Two corner plates (42) are symmetrically distributed base columns (416) that rotate together. The middle position of the outer wall of the base column (416) and the middle position of the outer wall of the double-ended screw (411) are both snapped into the middle position of the base column (416) and the middle position of the outer wall of the double-ended screw (411). The three toothed pulleys (417) in the same group are meshed together and fitted with a toothed belt (418).

3. A low-voltage medium-frequency emergency rescue generator according to claim 2, characterized in that: Both ends of the roller (46) are fitted with symmetrically distributed main gears (421). The ear seat (45) is fitted with a base frame (422) at the middle position of the end face away from the corner plate (42). The base frame (422) is fitted with an end shaft (423) through a rotating fit at the middle position. The end of the end shaft (423) away from the middle gear (412) is fitted with a sub-gear (424) that meshes with the main gear (421). The outer wall of the end shaft (423) away from the sub-gear (424) and the outer wall of the roller (46) are fitted with pulleys (425) evenly. The pulleys (425) are fitted with each other through corresponding toothed belts (418).

4. A low-voltage medium-frequency emergency rescue generator according to claim 3, characterized in that: Two corner plates (47) facing away from the direction of gravity are fitted with a main dust chamber (431) on one side of the outer wall away from the axis of the rotating roller (46). A secondary dust chamber (432) is fitted with the other side of the corner plate (47) facing away from the axis of the rotating roller (46). The cross-sectional shape of the main dust chamber (431) and the secondary dust chamber (432) is triangular. A U-shaped tube (433) is inserted into the middle of the end face of the main dust chamber (431) and the secondary dust chamber (432) near the connecting plate (41). The outer walls of the other two corner plates (47) facing away from the axis of the rotating roller (46) are fitted with air chambers (434) in a symmetrical manner. The cross-sectional shape of the air chamber (434) is an isosceles trapezoid. The two air chambers (434) in the same group are inserted into the middle of the end face of the side face near the connecting plate (41).

5. A low-voltage medium-frequency emergency rescue generator according to claim 4, characterized in that: The outer wall of the corner plate (1) is provided with four evenly spaced corner grooves (441) along its circumference. A shaft plate (442) is coaxially mounted on the end face of the corner plate (1) away from the connecting plate (41). The outer wall of the shaft plate (442) is provided with four evenly spaced arc grooves (443) along its circumference. The number and position of the arc grooves (443) correspond one-to-one with the corner grooves (441). The inner walls of the arc grooves (443) and the corner grooves (441) at the corresponding positions slide and engage together to install a shaft plate (442). T-shaped column (444), with a buckle (445) that is slidably fitted on the outer wall of coaxial disc (442) at the end of T-shaped column (444) away from connecting plate (41), with an electric telescopic rod (446) that is clasped and fitted on the outer wall of T-shaped column (444) away from connecting plate (41), with an end seat (447) that is clasped and fitted on the outer wall of electric telescopic rod (446) away from buckle (445), with a conical shovel (448) that is clasped and fitted on the end seat (447) away from electric telescopic rod (446).

6. A low-voltage medium-frequency emergency rescue generator according to claim 5, characterized in that: The outer space of the corner plate (1) is provided with a container body (11). The four corners of the container body (11) are respectively fitted with unit frames (12). A ventilation louver (13) is fitted with the outer wall of the vertical section on one side of the container body (11). A door (14) is fitted with the outer wall of the vertical section on the other side of the container body (11). The door (14) and the ventilation louver (13) are vertically distributed. The four unit frames (12) are fitted with slid-fitting grid panels (15) in a symmetrical manner. The grid panels (15) are provided with four support columns (16) that are fitted with the unit frames (12) in a sliding fit on the side of the middle of the container body (11). The number of support columns (16) is four, and two are a group.

7. A low-voltage medium-frequency emergency rescue generator according to claim 6, characterized in that: The heat dissipation unit (2) includes: The guard plate (21) is snap-fitted and installed on the opposite sides of the two opposing pillars (16); The radiator core (22) is snap-fitted between the two protective plates (21) in the same group and is evenly distributed in an array along the direction of gravity; The condenser (23) is snap-fitted and installed on the end face of the two guard plates (21) in the same group near the grille plate (15); The air outlet grille (24) is snap-fitted and installed on the side of the two main boards in the same group away from the grille window panel (15); in addition, the air outlet grille (24) is composed of multiple strips arranged in a single direction, and the vertical distance between adjacent strips of the air outlet grille (24) is greater than the vertical distance between the outer corner lines of the two opposite corner plates (47). The water inlet chamber (25) is installed at the end of the two guard plates (21) in the same group away from the direction of gravity by means of a bracket snap-fit; The outlet chamber (26) is directly opposite to the inlet chamber (25), and the outlet chamber (26) is installed in a snap-fit ​​connection with the guard plate (21); The radiator fan (27) is located on the side of the radiator core (22) away from the grille panel (15); Angle steel columns (28), four in number, two in a group, are snap-fitted and installed between the four corners of the radiator fan (27) and the grille panel (15); Angle steel plates (29), four in number, are snap-fitted and installed between the column (16) and the grille window panel (15).

8. A low-voltage medium-frequency emergency rescue generator according to claim 7, characterized in that: The adjustment unit (3) includes: The electric rail beam (31) has a cross-sectional shape of U-shape and is installed between the cooling fan and the radiator core (22) by sliding snap-fit. The movable plate (32) is slidably and snapped together and installed on the end face of the electric rail beam plate (31) near the radiator core (22); The end plate (33) is snap-fitted and installed in the middle of the end face of the movable plate (32) away from the electric rail beam plate (31); Two guide rails (34) are symmetrically snapped together and installed in the middle of the end face of the end plate (33) away from the movable plate (32); An empty plate (35) is snapped between two guide rails (34); An electric telescopic cylinder (36) is snapped into place at the middle position of one end face of the empty plate (35); The slotted bracket (37) is snapped into place at the end of the electric telescopic cylinder (36) away from the end plate (33); The flat angle seat (38) is snapped into place between the horizontal sections of the mortise seat, and the flat angle seat (38) is slidably fitted with the slide rail (44); The bearing seat (39) is installed in the middle of the end of the flat angle seat (38) away from the end plate (33) by a snap-fit ​​with the connecting plate. The bearing seat (39) and the angle plate (1) are installed in a through snap-fit ​​fit. The bearing seat (39) and the connecting plate (41) are snap-fit ​​installed together. The bearing seat (39) and the shaft plate (442) are installed in a rotatable fit fit.

9. A low-voltage medium-frequency emergency rescue generator according to claim 8, characterized in that: The cone shovel (448) is subjected to draft treatment, that is, the cross-section of the cone shovel (448) at the end away from the electric telescopic rod (446) increases in a gradient with the cross-section of the cone shovel (448) at the end closer to the electric telescopic rod (446).