Novel shared air cannon machine

Abstract

The utility model discloses a novel shared air cannon machine which comprises a seat, a base frame, an electric control box and a machine body, expansion screw fixing frames are positioned between the base frame and the seat and between the base frame and the electric control box, the machine body is located at the upper end of the electric control box, and an anti-skid handle is installed at the rear end of the machine body. A motor, a second rotating support, a positioning cover and a heating assembly are arranged in the machine body, moving wheels are movably arranged on the side of the electric control box, the edges of the two ends of the machine body are flush, the machine body is polished to be smooth after welding is completed, and a first rotating support is arranged at the position, located on the side of the second rotating support, of the outer side of the motor. According to the novel shared air cannon machine, the edges of the machine body are flush, the machine body is polished to be smooth after being welded, the situation that hands are scraped is not prone to occurring, the failure rate of a motor of equipment is reduced, the service life is longer, the motor is convenient to replace, the situation that oil leaks from the equipment is not prone to occurring, and the novel shared air cannon machine is more practical.

Description

Technical Field

[0001] This utility model relates to the field of air cannons, and in particular to a novel shared air cannon. Background Technology

[0002] An air cannon is a device that launches objects by compressing air. Its experimental principle is based on Poisson's equation and Euler's equation in gas mechanics, as well as the ideal gas law. When air is compressed, its pressure and temperature increase, thus increasing its density. When the compressed air is released, it is ejected at high speed, thereby generating force. With the continuous development of technology, people have increasingly higher requirements for the manufacturing process of air cannons.

[0003] Existing air cannon machines have certain drawbacks in use. Firstly, the edges of the machine can scratch hands during use; secondly, the machine is easily moved during deployment; thirdly, the motor has a high failure rate and is difficult to replace when damaged; fourthly, the steel wire connecting rope is easy to break; fifthly, the electrical control box and base are easy to detach; sixthly, the seat may detach; seventhly, the machine leaks oil; eighthly, the mainboard may come into contact with water; and ninthly, the handle is too cold and slippery. The machine also has problems such as low e-liquid replenishment reminders, which have a certain adverse effect on actual use. Therefore, we propose a new type of shared air cannon machine. Utility Model Content

[0004] Technical problem solved: In view of the shortcomings of the existing technology, this utility model provides a new type of shared air cannon machine. The machine body has flat edges and is polished smooth after welding, so it is not easy to scratch hands. It reduces the failure rate of the motor, has a longer service life, and the motor is easy to replace. The equipment is less prone to oil leakage and is more practical, which can effectively solve the problems in the background technology.

[0005] Technical Solution: To achieve the above objectives, the technical solution adopted by this utility model is as follows: A novel shared air cannon machine, comprising a seat, a base frame, an electrical control box, and a body. Expansion screw fixing brackets are positioned between the base frame, the seat, and the electrical control box. The body is located at the upper end of the electrical control box. An anti-slip handle is installed at the rear end of the body. The interior of the body is equipped with a motor, a second rotating bracket, a positioning cover, and a heating component. Moving wheels are movably arranged on the side of the electrical control box. The edges of both ends of the body are flush and polished smooth after welding.

[0006] Preferably, a first rotating bracket is provided on the outer side of the motor at the position next to the second rotating bracket. A positioning pin is positioned in the middle of the second rotating bracket. A first rotating bracket welding plate is provided on the outer side of the first rotating bracket, and the end of the first rotating bracket is engaged with the positioning pin. A large shim is provided between the motor and the second rotating bracket. A small shim is provided between the first rotating bracket welding plate and the second rotating bracket. A bracket shim and a nut cap are provided at the end of the second rotating bracket. The bracket shim is encircled on the outer wall of the nut cap. A single flat head of the motor is provided at the position where the front end of the motor limits the second rotating bracket. A mounting hole for the single flat head of the first rotating bracket is provided at the position where the first rotating bracket connects to the single flat head of the motor.

[0007] Preferably, a third rotating bracket is provided at the end of the second rotating bracket, and a wire passage hole is provided at the end of the third rotating bracket. A steel wire rope is connected to the wire passage hole of the third rotating bracket, and a lifting eye screw and a wire lock are connected to the end of the steel wire rope. The lifting eye screw is installed on the positioning cover. A brake bead wire passage hole, a brake bead body and a flange nut are positioned between the third rotating bracket and the steel wire rope.

[0008] Preferably, an electrical control box base fixing bracket is positioned and installed between the base frame and the electrical control box, a seat fixing plate is positioned and installed between the expansion screw fixing bracket and the seat, and a base frame connecting reinforcing rib is positioned and installed between the expansion screw fixing bracket and the base frame.

[0009] Preferably, the heating assembly is provided with a heating wire, an oil receiving box body and an oil receiving box flange, the oil receiving box flange is located on both sides of the oil receiving box body, and the heating wire is located inside the heating assembly.

[0010] Preferably, the electrical control box is internally equipped with a wire pass plug, a main control board bracket body, a liquid level sensor, a transparent oil tank, an oil tank limiting plate, and a rear door of the electrical control box. The main control board bracket body is provided with a main control board bracket wire pass hole, a main control board bracket wire tie hole, a main control board bracket waterproof folded edge, and mounting bolts. The wire pass plug is located at the top center of the electrical control box, and the rear door of the electrical control box is located at the front end of the electrical control box and is capable of locking.

[0011] Beneficial effects: Compared with the prior art, this utility model provides a new type of shared air cannon machine, which has the following beneficial effects: The edges of this new type of shared air cannon machine are flush and smooth after welding, so it is not easy to scratch hands, reducing the failure rate of the equipment motor, extending the service life, and making the motor easy to replace. The equipment is less prone to oil leakage, making it more practical. The entire air cannon machine has a simple structure, is easy to operate, and has a better effect than the traditional method. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the overall structure of a novel shared air cannon machine according to this utility model.

[0013] Figure 2 This is a schematic diagram of the other side of the overall structure of a novel shared air cannon machine according to this utility model.

[0014] Figure 3 This is a top view structural schematic diagram of a novel shared air cannon machine according to this utility model.

[0015] Figure 4 This is a structural schematic diagram of the main view of a novel shared air cannon machine according to this utility model.

[0016] Figure 5 This is a schematic diagram of the motor structure in a novel shared air cannon of this utility model.

[0017] Figure 6 This is a schematic diagram of the single flat head of the motor in a novel shared air cannon of this utility model.

[0018] Figure 7 This is a structural diagram showing the disassembly of the first rotating support in a novel shared air cannon machine according to this utility model.

[0019] Figure 8 This is a schematic diagram of the third rotating support in a novel shared air cannon machine according to this utility model.

[0020] Figure 9 This is a schematic diagram of the inner side of the positioning cover in a novel shared air cannon machine according to this utility model.

[0021] Figure 10 This is a schematic diagram of the outer side of the positioning cover in a novel shared air cannon machine according to this utility model.

[0022] Figure 11 This is a structural schematic diagram of a novel shared air cannon machine according to the present invention, viewed from below.

[0023] Figure 12 This is a schematic diagram of the structure of the electrical control box base fixing bracket in a novel shared air cannon machine according to this utility model.

[0024] Figure 13 This is a schematic diagram of the seat installation structure in a novel shared air cannon machine according to this utility model.

[0025] Figure 14 This is a schematic diagram of the heating component in a novel shared air cannon machine according to this utility model.

[0026] Figure 15 This is a schematic diagram of the internal structure of the electrical control box in a novel shared air cannon machine according to this utility model.

[0027] Figure 16 This is a schematic diagram of the main control board support body in a novel shared air cannon machine according to this utility model.

[0028] Figure 17 This is a schematic diagram of the internal structure of the electrical control box of a novel shared air cannon machine according to this utility model.

[0029] In the diagram: 1. Seat; 2. Expansion bolt fixing bracket; 3. Base frame; 4. Electrical control box; 5. Body; 6. Casters; 7. Anti-slip handle; 8. Motor; 9. Positioning cover; 10. Heating assembly; 11. First rotating bracket; 12. Positioning pin; 13. Second rotating bracket; 14. Bracket washer; 15. Nut cap; 16. Small washer; 17. Large washer; 18. First rotating bracket welding plate; 19. Motor single flat head; 20. First rotating bracket single flat head mounting hole; 21. Third rotating bracket; 22. Third rotating bracket wire hole; 23. Steel wire rope; 24. Suspension. 25. Ring screw; 26. Cable locker; 27. Brake bead cable hole; 28. Brake bead body; 29. ​​Flange nut; 30. Electrical control box base mounting bracket; 31. Seat mounting plate; 32. Base frame connecting reinforcing rib; 33. Oil receiving box body; 34. Oil receiving box folded edge; 35. Heating wire; 36. Cable plug; 37. Main control board bracket body; 38. Main control board bracket cable hole; 39. Main control board bracket cable tie hole; 40. Main control board bracket waterproof folded edge; 41. Mounting bolt; 42. Liquid level sensor; 43. Transparent oil tank; 44. Oil tank limit plate; 45. Electrical control box rear door. Detailed Implementation

[0030] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the embodiments described below are only some embodiments of this utility model, not all embodiments, and are only used to illustrate this utility model, and should not be regarded as limiting the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] like Figure 17 As shown, a new type of shared air cannon machine includes a seat 1, a base frame 3, an electrical control box 4, and a body 5. Expansion screw fixing brackets 2 are positioned between the base frame 3, the seat 1, and the electrical control box 4. The body 5 is located on top of the electrical control box 4. An anti-slip handle 7 is installed at the rear end of the body 5. The interior of the body 5 is equipped with a motor 8, a second rotating bracket 13, a positioning cover 9, and a heating component 10. The sides of the electrical control box 4 are movably equipped with casters 6. The edges of both ends of the body 5 are flush and polished smooth after welding. The flush edges of the body and the smooth polishing after welding reduce the risk of scratching hands, lower the failure rate of the motor, extend its service life, facilitate motor replacement, and reduce the likelihood of oil leakage, making the machine more practical.

[0034] Furthermore, a first rotating bracket 11 is provided on the outer side of the motor 8, located on the side of the second rotating bracket 13. A positioning pin 12 is positioned in the middle of the second rotating bracket 13. A first rotating bracket welding plate 18 is provided on the outer side of the first rotating bracket 11, and the end of the first rotating bracket 11 is engaged with the positioning pin 12. A large washer 17 is provided between the motor 8 and the second rotating bracket 13. A small washer 16 is provided between the first rotating bracket welding plate 18 and the second rotating bracket 13. A bracket washer 14 and a nut cap 15 are provided at the end of the second rotating bracket 13. The bracket washer 14 is encircled on the outer wall of the nut cap 15. A motor single flat head 19 is provided at the position where the front end of the motor 8 limits the second rotating bracket 13. A first rotating bracket single flat head mounting hole 20 is provided at the position where the first rotating bracket 11 connects to the motor single flat head 19.

[0035] Furthermore, a third rotating bracket 21 is provided at the end of the second rotating bracket 13. A third rotating bracket wire hole 22 is provided at the end of the third rotating bracket 21. A steel wire rope 23 is connected to the third rotating bracket wire hole 22. A lifting eye screw 24 and a wire lock 25 are connected to the end of the steel wire rope 23. The lifting eye screw 24 is installed on the positioning cover 9. A brake bead wire hole 26, a brake bead body 27 and a flange nut 28 are positioned between the third rotating bracket 21 and the steel wire rope 23.

[0036] Furthermore, an electrical control box base fixing bracket 29 is positioned and installed between the base frame 3 and the electrical control box 4, a seat fixing plate 30 is positioned and installed between the expansion screw fixing bracket 2 and the seat 1, and a base frame connecting reinforcing rib 31 is positioned and installed between the expansion screw fixing bracket 2 and the base frame 3.

[0037] Furthermore, the heating assembly 10 is provided with a heating wire 34, an oil receiving box body 32 and an oil receiving box flange 33, the oil receiving box flange 33 is located on both sides of the oil receiving box body 32, and the heating wire 34 is located inside the heating assembly 10.

[0038] Furthermore, the internal components of the electrical control box 4 include a wire pass plug 35, a main control board bracket body 36, a liquid level sensor 41, a transparent oil tank 42, an oil tank limiting plate 43, and a rear door 44. The main control board bracket body 36 is equipped with a main control board bracket wire pass hole 37, a main control board bracket wire tie hole 38, a main control board bracket waterproof folded edge 39, and mounting bolts 40. The wire pass plug 35 is located at the top center of the electrical control box 4, and the rear door 44 is located at the front end of the electrical control box 4 and engages in a locking action.

[0039] Comparative example:

[0040] Existing problem: The edges of the device are rough to the touch.

[0041] Solution: The existing edge-guard design on both ends of the cannon barrel has been replaced with a design where the front and rear panels are flush with the front and rear of the cannon body and welded along the edges. After welding, the edges are polished smooth. This is to avoid problems such as children scratching their hands when touching the edges during deployment.

[0042] Existing problem: During deployment, the equipment is prone to shifting due to shaking.

[0043] Solution: There is an expansion screw fixing bracket at the end of the base frame, and there is an expansion screw fixing bracket on each side at the front end. The expansion screw fixing bracket has expansion screw fixing holes on its surface. When placing the device, expansion screws can be used to fix the device body, so as to avoid movement or even safety accidents due to shaking during placement and use.

[0044] Existing problem: High motor failure rate

[0045] Solution: The internal gears and worm gear of the motor are reinforced with increased strength. The gears are made of 416 stainless steel and hardened, while the worm gear is made of 1215 stainless steel and heat-treated.

[0046] Existing problem: The motor is damaged and inconvenient to replace.

[0047] Solution: Currently, the assembly and fixing method of the rotating mechanism of the shared air cannon on the market is welding. This method means that if one part is damaged, it cannot be replaced, causing significant inconvenience for merchants. This new design innovatively optimizes the assembly mechanism of the rotating mechanism.

[0048] Improvement point 1 in the existing assembly and fixing method: The welding of the motor connector to the main body of the rotating bracket 1 in existing commercially available equipment is optimized by designing the motor connector as a single flat head and changing the round hole in the main body of the rotating bracket 1 to a flat hole to achieve a limiting function. The main body of the rotating bracket 1 is fixed to the rotating bracket 1 welding plate by welding. It is then locked to the motor using screws. 272 ​​high-strength thread-locking adhesive is applied to the screw surface; the thread-locking adhesive mainly serves to strengthen the fixing function.

[0049] Improvement point 2 of the existing assembly and fixing method: The existing equipment rotating bracket 2 and rotating bracket 3 are fixed by welding nuts at the end. The design is optimized to use a nut cap for fixing. The inside of the nut cap is coated with 272 high-strength thread adhesive. The thread adhesive mainly plays the role of strengthening and fixing.

[0050] Improvement point 3 in the existing assembly and fixing method: Currently, when a motor fails, the entire module needs to be replaced, which is costly and difficult to disassemble and replace. The current structure only requires removing the screws at the end of the welding plate of the rotating bracket 1 for maintenance and replacement.

[0051] Existing problem: The steel wire connecting rope is prone to breakage.

[0052] The steel wire connecting rope is prone to breakage: Currently, the existing steel wire rope fixing method for shared air cannons on the market involves securing one end of the steel wire rope with a lifting eye bolt and a wire lock, while the other end passes through the wire hole 3 of the rotating bracket. The drawback of the existing fixing method is that the steel wire rope may break due to friction during long-term motor rotation, making it not durable and leading to increased after-sales maintenance costs.

[0053] This invention addresses the aforementioned problems by optimizing the wire rope by using a different end. The wire rope's front end remains the same as existing equipment, while its rear end passes through a brake bead cable hole in the brake bead body and is secured with an M6 flange nut. This prevents the wire rope from being damaged by friction due to motor rotation, reducing operational and after-sales maintenance costs.

[0054] Existing problem: The electrical control box is prone to detaching from the base.

[0055] The control box and base are prone to detachment: Currently, the existing shared air cannons use three screws to tighten the control box and base frame by passing them through three mounting holes. The drawback of this method is that the control box and base frame can easily detach during deployment because the force is concentrated in the middle and lacks balance.

[0056] This invention addresses the aforementioned problems by adding four electrical control box base fixing brackets to the main body of the base frame, and securing them with seven screws passed through the seven electrical control box mounting holes. The optimized structure ensures even force distribution on the electrical control box body, preventing the base frame from detaching from the electrical control box body during use, thus significantly reducing operating and after-sales maintenance costs.

[0057] Existing problem: Seat detachment

[0058] Seat detachment: Currently available shared air cannon machines on the market have the problem that when children sit on the seat and lean back, the main frame of the base will crack over time, which can easily cause safety accidents and lead to serious consequences.

[0059] This invention addresses the aforementioned problems by: ① Full welding at the bottom connection and the addition of a reinforcing rib to the base frame connection to strengthen the foundation; ② Users often lean back during use, putting stress on the base connection. If the base foundation is not firmly welded, the risk of cracking increases. To address this issue, the seat fixing plate is designed with a 5° tilt to reduce the degree of backward leaning.

[0060] Existing problem: Equipment oil leakage

[0061] Equipment oil leakage: Currently, the existing shared air cannon machines on the market lack two oil collection box folded edges, which causes e-liquid to splash out from both sides during use. On the one hand, it affects the sensory experience of users, and on the other hand, the splashed e-liquid flows out directly, causing waste.

[0062] This invention addresses the aforementioned problems by adding two folded edges to both sides of the e-liquid collection box body, and fully welding the seams of these edges. This optimization significantly reduces e-liquid ejection; the generated e-liquid is blocked by the folded edges, collected in the collection box, and then recycled back into the e-liquid tank for reuse. This reduces operating costs and enhances the user experience and enjoyment.

[0063] Existing problem: Motherboard leaking water.

[0064] Water leakage from the motherboard: The wiring harness of existing shared air cannon machines on the market is directly plugged into the motherboard interface through the wire plug. Water will drip along the wiring harness and onto the motherboard, which can easily burn out the motherboard, seriously affecting the merchant's deployment experience and greatly increasing the operation and after-sales maintenance costs.

[0065] This invention addresses the aforementioned problems by optimizing the existing wiring solution. Specifically, the existing wiring harness is bent and inserted through the cable guide hole in the motherboard bracket before being plugged into the port of the second main control board. The harness is then secured with cable ties via the main control board bracket. This design ensures that even if rainwater falls, the bent harness will allow the water to fall vertically. Furthermore, a waterproof folded edge is added to the left side of the main control board bracket, significantly preventing moisture from entering the second main control board. Based on these optimizations, the user experience for merchants is improved, and operational and after-sales maintenance costs are fundamentally reduced.

[0066] Existing problem: The handle is too cold and slippery.

[0067] Handles are too cold and slippery: Existing shared air cannon machines on the market use bare handlebars, which are made of iron and are not usable in winter.

[0068] This invention addresses the aforementioned problems by adding a glove to the handlebars on the handlebar frame. This prevents excessive icing on the handlebars and also increases slip resistance. These optimizations expand the device's usability and provide a better user experience.

[0069] Existing issue: No warning for low e-liquid level.

[0070] Low e-liquid level warning: Existing shared e-liquid sprayers on the market do not have a liquid level sensor. This means that the device will continue to operate even when the e-liquid tank is empty, which not only leads to an unpleasant user experience but also increases operating and after-sales maintenance costs.

[0071] This invention addresses the aforementioned problems by installing a liquid level sensor on the 12.5L oil tank lid. This sensor detects changes in the liquid level inside the tank, and when the e-liquid level in the tank reaches a low point, the device will stop working and prompt the user to add more e-liquid.

[0072] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0073] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A novel shared air cannon, comprising a seat (1), a base frame (3), an electrical control box (4), and a body (5), characterized in that: The base frame (3) is positioned with expansion screw fixing brackets (2) between the seat (1) and the electrical control box (4). The body (5) is located at the upper end of the electrical control box (4). The rear end of the body (5) is equipped with an anti-slip handle (7). The body (5) is equipped with a motor (8), a second rotating bracket (13), a positioning cover (9) and a heating component (10). The side of the electrical control box (4) is movably equipped with casters (6). The two ends of the body (5) are flush and polished after welding.

2. The novel shared air cannon according to claim 1, characterized in that: A first rotating bracket (11) is provided on the outer side of the motor (8) at the side of the second rotating bracket (13). A positioning pin (12) is positioned in the middle of the second rotating bracket (13). A first rotating bracket welding plate (18) is provided on the outer side of the first rotating bracket (11), and the end of the first rotating bracket (11) is engaged with the positioning pin (12). A large washer (17) is provided between the motor (8) and the second rotating bracket (13). A small washer (16) is provided between the first rotating bracket welding plate (18) and the second rotating bracket (13). A bracket washer (14) and a nut cap (15) are provided at the end of the second rotating bracket (13). The bracket washer (14) is encircled on the outer wall of the nut cap (15). A motor single flat head (19) is provided at the position where the front end of the motor (8) limits the second rotating bracket (13). A first rotating bracket single flat head mounting hole (20) is opened at the position where the first rotating bracket (11) connects to the motor single flat head (19).

3. The novel shared air cannon according to claim 2, characterized in that: The second rotating bracket (13) is provided with a third rotating bracket (21) at its end. The third rotating bracket (21) has a wire hole (22) at its end. A steel wire rope (23) is connected to the wire hole (22). A lifting eye screw (24) and a wire lock (25) are connected to the end of the steel wire rope (23). The lifting eye screw (24) is installed on the positioning cover (9). A brake bead wire hole (26), a brake bead body (27), and a flange nut (28) are positioned between the third rotating bracket (21) and the steel wire rope (23).

4. The novel shared air cannon according to claim 1, characterized in that: An electrical control box base fixing bracket (29) is positioned between the base frame (3) and the electrical control box (4), a seat fixing plate (30) is positioned between the expansion screw fixing bracket (2) and the seat (1), and a base frame connecting reinforcing rib (31) is positioned between the expansion screw fixing bracket (2) and the base frame (3).

5. A novel shared air cannon as described in claim 1, characterized in that: The heating assembly (10) is provided with a heating wire (34), an oil receiving box body (32) and an oil receiving box flange (33). The oil receiving box flange (33) is located on both sides of the oil receiving box body (32), and the heating wire (34) is located inside the heating assembly (10).

6. A novel shared air cannon as described in claim 1, characterized in that: The electrical control box (4) is equipped with a wire pass plug (35), a main control board bracket body (36), a liquid level sensor (41), a transparent oil drum (42), an oil drum limiting plate (43), and a rear door (44) inside. The main control board bracket body (36) is equipped with a main control board bracket wire pass hole (37), a main control board bracket wire tie hole (38), a main control board bracket waterproof fold (39), and mounting bolts (40). The wire pass plug (35) is located at the top center of the electrical control box (4), and the rear door (44) of the electrical control box is located at the front end of the electrical control box (4) and is engaged.

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