Tabletop hot air riveter

Abstract

The utility model discloses a table type hot -blast cold riveter relates to plastic riveting and plastic welding technical field, table type hot -blast cold riveter, include, frame device, X -axis module device, Y -axis module device, Z -axis module device, hot -blast rifle device, frame device includes distribution box shell, and the top of distribution box shell is provided with frame bottom plate, and the top rear end surface of frame bottom plate is provided with left vertical board and right vertical board respectively left and right sides, this table type hot -blast cold riveter is designed as desktop formula placement, and the compact structure is small, and will not occupy too much work space, is very suitable for various small -size working environment, and its heating efficiency is very high, can reach the required temperature in short time, ensures the quick operation of riveting process, simultaneously, rivet point intensity is high, can provide stable connection effect, ensures the durability and reliability of product, and the temperature range of the equipment is wide, can carry out the flexible adjustment according to the demand of different material quality.

Description

Technical Field

[0001] This utility model relates to the field of plastic riveting and plastic welding technology, specifically a desktop hot air cold riveting machine. Background Technology

[0002] The benchtop hot air riveting machine, specifically designed for desktop operation, features a compact structure and highly efficient riveting capabilities. By precisely controlling the hot air temperature and cold riveting pressure, it can complete riveting of metals or other materials in a short time, making it suitable for precision riveting of various small parts. This equipment is typically equipped with an easy-to-operate control system and safety features to ensure operational safety and high consistency in riveting quality. It is widely used in industries such as electronics, hardware, and automotive manufacturing, and is particularly suitable for production environments requiring high-precision and high-efficiency riveting processes. Based on actual usage, the existing desktop hot air cold riveting machine still has some shortcomings, such as low heating efficiency and inability to achieve effective compatibility with plastic products of different materials. Therefore, we have improved the existing technology based on actual usage. Utility Model Content

[0003] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract and the title of this utility model. Such simplifications or omissions shall not be used to limit the scope of this utility model.

[0004] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: The desktop hot air cold riveting machine includes a frame assembly, an X-axis module assembly, a Y-axis module assembly, a Z-axis module assembly, a hot air gun assembly, a cold riveting gun assembly, a riveting operation device, a program setting device, an air blowing and cooling device, a tooling and loading device, and a power distribution box assembly. The rack assembly includes a power distribution box housing, with a rack base plate on the top of the power distribution box housing, and a left upright plate and a right upright plate on the left and right sides of the top rear end face of the rack base plate, respectively. The X-axis module device includes an X-axis crossbeam, X-axis slide rail one, X-axis slide rail two, X-axis dustproof plate, X-axis cable chain, X-axis cable chain support plate, X-axis cable chain bracket, X-axis left limit block, X-axis right limit block, and X-axis sensor rail. The X-axis module device is installed on the top of the opposite surfaces of the left and right vertical plates. The Y-axis module includes Y-axis slide rail one, Y-axis slide rail two, Y-axis dustproof plate, and Y-axis moving plate. The Y-axis module is installed on the front end face of the X-axis module. The Z-axis module includes a Z-axis vertical plate, a Z-axis slide rail, a Z-axis moving plate, an adjusting handwheel, a Z-axis drag chain bracket, and a Z-axis drag chain. The Z-axis module is installed on top of the X-axis module. The hot air gun device includes a hot air controller, a hot air controller interface, a hot air pressing cylinder, a hot air gun floating connector, a hot air gun clamping block, a hot air gun air pipe connector, a hot air gun anti-scalding cover, and a hot air nozzle; The cold riveting gun assembly includes a cold riveting pressing cylinder, a cold riveting gun floating joint, a cold riveting gun clamping block, a cold riveting gun air pipe joint, a cold riveting gun pressing rod, and a cold riveting die head; The riveting operation device includes a right start button, a reset button, an emergency stop button, a start heating button, a stop heating button, and a left start button; The program setting device includes a touch screen and a touch screen bracket, and the program setting device is located on the right side of the rack device; The air-blowing cooling device includes an air source interface and a solenoid valve assembly. The air-blowing cooling device is located on the rear end face of the frame assembly. The loading device includes a vehicle base plate, and the product is placed on top of the vehicle base plate.

[0006] Furthermore: the loading device includes a loading platform, which is located on top of the Y-axis moving plate, and quick clamps are provided at the center of the front and rear end faces of the top of the loading platform.

[0007] Furthermore: the distribution box assembly includes a distribution panel handle, a distribution box housing, a power switch, and a power cord interface, and the distribution box assembly is located on the rear end face of the rack assembly.

[0008] Furthermore, the distribution box casing and the bottom of the hot air controller are all equipped with feet, and the bottom of each foot is fitted with an anti-slip pad.

[0009] Furthermore: the touch screen bracket includes a touch screen fixing frame, and a mounting arm is provided at the center of the rear end face of the touch screen fixing frame, which is fixedly connected to the right rear end face of the power distribution box housing.

[0010] Furthermore: the Y-axis moving plate is set parallel to the outer shell of the distribution box, and a frame base plate is set on the top of the outer shell of the distribution box.

[0011] Furthermore: the included angles between the left and right vertical panels and the top of the distribution box casing are both set to 90 degrees, and a cable cover is provided on the right side of the left vertical panel.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This desktop hot air cold riveting machine is designed for desktop placement, featuring a compact structure and small size that won't occupy excessive workspace, making it ideal for various small work environments. Its extremely high heating efficiency allows it to quickly reach the required temperature, ensuring a rapid riveting process. Simultaneously, it produces high-strength rivets, providing a solid connection and ensuring product durability and reliability. The machine has a wide temperature range, which can be flexibly adjusted according to the needs of different materials, ensuring optimal riveting quality. Furthermore, it has broad compatibility with various plastic products, suitable for a wide range of plastic products, greatly expanding its application scope. In terms of production and use, the machine is cost-effective, effectively reducing operating costs for businesses. Operation is simple and intuitive, requiring no complex training for easy user mastery. Installation and debugging are also very convenient and flexible, greatly improving work efficiency. Most importantly, the machine is safe and stable, equipped with multiple safety protection measures to ensure no safety hazards during use, providing users with reliable safety assurance.

[0013] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0014] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a schematic diagram of the left side view of the present invention.

[0017] In the diagram: 1. Distribution box housing; 2. Foot cup; 3. Hot air controller; 4. Left upright plate; 5. Right upright plate; 6. Cable guide cover; 7. X-axis slide rail II; 8. X-axis slide rail I; 9. X-axis dustproof plate; 10. X-axis sensor rail; 11. X-axis left limit block; 12. X-axis right limit block; 13. X-axis cable chain support plate; 14. X-axis cable chain; 15. Z-axis cable chain bracket; 16. Z-axis cable chain; 17. Cold riveting gun floating connector; 18. Hot air gun floating connector; 19. Cold riveting pressing cylinder; 20. Hot air pressing cylinder; 21. Cold riveting gun clamping block; 22. Hot air gun clamping block; 23. Cold riveting gun pressing rod; 24. Cold riveting die head; 25. Hot air gun anti-scalding cover; 26. Hot air nozzle; 27. Touch screen bracket; 28. Touch... 29. Touchscreen; 30. Frame base plate; 31. Y-axis moving plate; 32. Carrier base plate; 33. Quick clamp; 34. Left start button; 35. Start heating button; 36. Stop heating button; 37. Emergency stop button; 38. Reset button; 39. Right start button; 40. Power switch; 41. Power cord interface; 42. Distribution panel handle; 43. Product; 44. Y-axis dustproof plate; 45. Air source interface; 46. Hot air controller interface; 47. Y-axis slide rail two; 48. Y-axis slide rail one; 49. X-axis drag chain bracket; 50. Z-axis upright plate; 51. Z-axis slide rail; 52. Z-axis moving plate; 53. Adjusting handwheel; 54. Solenoid valve assembly; 55. X-axis crossbeam; 56. Hot air gun air pipe connector; 57. Cold riveting gun air pipe connector. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0021] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0022] Example 1: Please see Figure 1-3 This utility model provides a technical solution: a desktop hot air cold riveting machine, including a frame device, an X-axis module device, a Y-axis module device, a Z-axis module device, a hot air gun device, a cold riveting gun device, a riveting operation device, a program setting device, an air blowing and cooling device, a tooling device, and a power distribution box device. The rack assembly includes a power distribution box housing 1. A rack base plate 29 is installed on the top of the power distribution box housing 1. A left upright plate 4 and a right upright plate 5 are respectively installed on the left and right sides of the top rear end face of the rack base plate 29. These two upright plates provide a stable support structure for the entire rack. The X-axis module includes an X-axis beam 54, an X-axis slide rail 1 8, an X-axis slide rail 2 7, an X-axis dustproof plate 9, an X-axis cable chain 14, an X-axis cable chain support plate 13, an X-axis cable chain bracket 15, an X-axis left limit block 11, an X-axis right limit block 12, and an X-axis sensor rail 10. The X-axis module is installed on the top of the opposite surfaces of the left vertical plate 4 and the right vertical plate 5. These components work together to ensure that the X-axis module can operate efficiently and accurately. The X-axis module is carefully installed on the top of the opposite surfaces of the left vertical plate 4 and the right vertical plate 5. Through its tight connection with the vertical plates, the stability of the entire device and the accuracy of its operation are ensured. The Y-axis module includes a Y-axis slide rail 1 47, a Y-axis slide rail 2 46, a Y-axis dustproof plate 43, and a Y-axis moving plate 30. The Y-axis module is installed on the front face of the X-axis module. The Y-axis slide rail 1 47 and Y-axis slide rail 2 46 work together to support and guide the movement in the Y-axis direction. The Y-axis dustproof plate 43's main function is to prevent dust and other impurities from entering the slide rail system, thereby ensuring the module's operating accuracy and stability. Overall, the Y-axis module is carefully designed and installed on the front face of the X-axis module. This not only optimizes the spatial layout but also ensures the coordinated operation between the two modules, improving the overall system's operating efficiency and accuracy. The Z-axis module assembly includes a Z-axis vertical plate 49, a Z-axis slide rail 50, a Z-axis moving plate 51, an adjusting handwheel 52, a Z-axis drag chain bracket 15, and a Z-axis drag chain 16. The Z-axis module is mounted on top of the X-axis module. These components work together to ensure stable operation and precise control of the Z-axis module. The Z-axis vertical plate 49 serves as a support structure, providing a solid foundation for the entire Z-axis module. The Z-axis slide rail 50 guides the Z-axis moving plate 51 to move smoothly in the vertical direction. The adjusting handwheel 52 allows for manual adjustment of the Z-axis moving plate 51's position, enabling precise fine-tuning as needed. The Z-axis drag chain bracket 15 and Z-axis drag chain 16 protect and guide cables and air hoses, preventing damage or interference during movement. Overall, the Z-axis module assembly, through these carefully designed components mounted on top of the X-axis module, forms a complete and efficient vertical motion system, ensuring the accuracy and reliability of the material handling process. The hot air gun assembly includes a hot air controller 3, a hot air controller interface 45, a hot air downward pressure cylinder 20, a hot air gun floating connector 18, a hot air gun clamping block 22, a hot air gun air pipe connector 55, a hot air gun anti-scalding cover 25, and a hot air nozzle 26. The hot air downward pressure cylinder 20 provides stable downward pressure, ensuring the hot air gun remains stable during welding and preventing vibrations that could affect welding quality. The hot air gun floating connector 18 ensures the flexibility and adaptability of the hot air gun during operation, allowing it to adapt to various situations. At different welding angles and positions, the hot air gun clamping block 22 can firmly hold the hot air gun to prevent it from accidentally falling off during operation. The hot air gun air pipe connector 55 is responsible for connecting the hot air gun to the external air source and providing the necessary working gas for the hot air gun. The hot air gun anti-scalding cover 25 can effectively block the direct radiation of hot air and reduce the risk of burns during operation. The hot air nozzle 26 is a key component of the hot air gun. It is responsible for accurately guiding the hot air to the welding area, making the welding process more efficient and precise. The cold riveting gun assembly includes a cold riveting pressing cylinder 19, a cold riveting gun floating joint 17, a cold riveting gun clamping block 21, a cold riveting gun air pipe connector 56, a cold riveting gun pressing rod 23, and a cold riveting die head 24. The cold riveting pressing cylinder 19 is the core power source of the assembly, responsible for providing stable downward pressure. Next, the cold riveting gun floating joint 17 allows for flexible position adjustment, ensuring precise alignment during the cold riveting process. Then, the cold riveting gun clamping block 21 firmly clamps the workpiece, ensuring stability during the riveting process. Furthermore, the cold riveting gun air pipe connector 56 connects to the air source, ensuring the normal operation of the cylinder. The cold riveting gun pressing rod 23 is a crucial component for transmitting downward pressure, acting directly on the workpiece surface. Finally, the cold riveting die head 24 is the part that directly contacts the workpiece, responsible for completing the final riveting process. These components work together to form a highly efficient and stable cold riveting gun assembly. The riveting operation device includes a right start button 38, a reset button 37, an emergency stop button 36, a start heating button 34, a stop heating button 35, and a left start button 33; The program setting device includes a touch screen 28 and a touch screen bracket 27, and the program setting device is located on the right side of the rack device; The air-blowing cooling device includes an air source interface 44 and a solenoid valve assembly 53. The air-blowing cooling device is located on the rear end face of the frame assembly. The loading device includes a carrier base plate 31, and a product 42 is placed on top of the carrier base plate 31.

[0023] Preferably, the loading device includes a base plate 31, which is located on top of the Y-axis moving plate 30. Quick clamps 32 are provided at the center of the front and rear ends of the top of the base plate 31. The base plate 31 is installed at the top of the Y-axis moving plate 30 to ensure that it can move stably and accurately during operation. Specifically, quick clamps 32 are symmetrically provided at the center of the front and rear ends of the top of the base plate 31. These quick clamps 32 provide convenient and firm fixing functions so that the loading and unloading of workpieces can be carried out quickly and efficiently, thereby significantly improving the working efficiency and stability of the entire loading device.

[0024] Preferably, the distribution box assembly includes a distribution panel handle 41, a distribution box housing 1, a power switch 39, and a power cord interface 40. The distribution box assembly is located at the rear end of the frame assembly. The distribution panel handle 41 is an important component for operating the opening and closing of the distribution panel, allowing users to easily open or close the distribution panel when needed. Secondly, the distribution box housing 1 protects and secures the internal electrical components, ensuring the overall structure of the distribution box is stable and safe. Thirdly, the power switch 39 is the core switch that controls the power supply to and from the distribution box, allowing users to conveniently control the power supply connection and disconnection. Finally, the power cord interface 40 is the interface for connecting the power cord to the distribution box, ensuring that the power cord can be securely and safely connected to the distribution box.

[0025] Preferably, the bottom of the distribution box housing 1 and the hot air controller 3 are provided with feet 2 around the bottom, and the bottom of the feet 2 is glued with anti-slip pads. This arrangement can increase the stability of the distribution box housing 1 and the hot air controller 3 when placed and reduce the phenomenon of shaking.

[0026] Preferably, the touch screen bracket 27 includes a touch screen fixing frame, and a mounting arm is provided at the center of the rear end face of the touch screen fixing frame, which is fixedly connected to the right rear end face of the power distribution box housing 1. This arrangement can effectively increase the stability of the touch screen 28 after installation and the smoothness during use.

[0027] Example 2: Reference Figure 1-3This embodiment differs from the first embodiment in that the Y-axis moving plate 30 is arranged parallel to the distribution box housing 1, ensuring spatial harmony between the two. A rack base plate 29 is provided on the top of the distribution box housing 1 to provide stable support and installation foundation. The included angles between the left upright plate 4, the right upright plate 5 and the top of the distribution box housing 1 are both set at 90 degrees. This right-angle design not only enhances the stability of the overall structure but also facilitates subsequent installation and maintenance. A cable cover plate 6 is provided on the right side of the left upright plate 4. The cable cover plate 6 is used to effectively manage and protect various cables passing through this area, ensuring the cleanliness and safety of the cables.

[0028] Working principle: Turn on the power switch 39 of the distribution box to power on the desktop hot air cold riveting machine. After the hot air controller 3 of the hot air gun is powered on, it starts heating and blows hot air out through the hot air nozzle 26. Press the reset button 37 of the riveting operation device to return the X-axis module, Y-axis module, and Z-axis module to their initial positions. Place the plastic product 42 to be riveted in the carrier base plate 31 of the tooling device. Press the left start button 33 and the right start button 38 simultaneously with both hands. At this time, the X-axis module and Y-axis module move simultaneously, moving the product 42 in the carrier base plate 31 to directly below the hot air nozzle 26 of the hot air gun device. Then, the hot air pressing cylinder 20 extends downward, driving the hot air gun floating joint 18, hot air gun clamping block 22, hot air gun air pipe joint 55, hot air gun anti-scalding cover 25, and hot air nozzle 26 downward, so that the hot air nozzle 26 covers the plastic column of the product and begins to heat it. After a certain period of time, the plastic column is fully softened, and the hot air pressing cylinder 19... The hot air nozzle 26 retracts and lifts upwards, leaving the product. Then, the X-axis module and Y-axis module move again, so that the softened plastic column of the product in the carrier base plate 31 of the tooling device is directly below the cold riveting die head 24 of the cold riveting gun device. At this time, the cold riveting pressing cylinder 19 of the cold riveting gun device extends, driving the cold riveting gun floating joint 17, cold riveting gun clamping block 21, cold riveting gun air pipe joint 56, cold riveting gun pressing rod 23, and cold riveting die head 24 to move downwards quickly. The softened plastic column of the product is squeezed into the designed shape by the cold riveting die head 24. After maintaining this shape for a certain period of time, the solenoid valve assembly 53 of the air blowing cooling device and the cold riveting gun air pipe joint 56 of the cold riveting gun device start blowing air to cool the cold riveting die head 24. After the plastic column inside the cold riveting die head 24 solidifies and forms, the air blowing stops. Then, the cold riveting pressing cylinder 19 retracts, driving the cold riveting die head 24 to lift upwards and leave the product. The X-axis module and Y-axis module move back to the initial position, completing the product riveting.

[0029] It should be noted that the electrical components of this utility model have already combed the wire harness during operation, so there will be no problem of wire harness tangling.

[0030] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A desktop hot air cold riveting machine, characterized in that: include, Frame assembly, X-axis module assembly, Y-axis module assembly, Z-axis module assembly, hot air gun assembly, cold riveting gun assembly, riveting operation device, program setting device, air blowing cooling device, tooling and loading device, and power distribution box assembly. The rack device includes a power distribution box housing (1), and a rack base plate (29) is provided on the top of the power distribution box housing (1). A left upright plate (4) and a right upright plate (5) are respectively provided on the left and right sides of the top rear end face of the rack base plate (29). The X-axis module device includes an X-axis crossbeam (54), an X-axis slide rail one (8), an X-axis slide rail two (7), an X-axis dustproof plate (9), an X-axis drag chain (14), an X-axis drag chain support plate (13), an X-axis drag chain bracket (48), an X-axis left limit block (11), an X-axis right limit block (12), and an X-axis sensor rail (10). The X-axis module device is installed on the top of the opposite surfaces of the left vertical plate (4) and the right vertical plate (5). The Y-axis module device includes Y-axis slide rail one (47), Y-axis slide rail two (46), Y-axis dustproof plate (43), and Y-axis moving plate (30). The Y-axis module is installed on the front end face of the X-axis module. The Z-axis module device includes a Z-axis vertical plate (49), a Z-axis slide rail (50), a Z-axis moving plate (51), an adjusting handwheel (52), a Z-axis drag chain bracket (15), and a Z-axis drag chain (16). The Z-axis module is installed on the top of the X-axis module. The hot air gun device includes a hot air controller (3), a hot air controller interface (45), a hot air pressing cylinder (20), a hot air gun floating connector (18), a hot air gun clamping block (22), a hot air gun air pipe connector (55), a hot air gun anti-scalding cover (25), and a hot air nozzle (26). The cold riveting gun device includes a cold riveting pressing cylinder (19), a cold riveting gun floating joint (17), a cold riveting gun clamping block (21), a cold riveting gun air pipe joint (56), a cold riveting gun pressing rod (23), and a cold riveting die head (24). The riveting operation device includes a right start button (38), a reset button (37), an emergency stop button (36), a start heating button (34), a stop heating button (35), and a left start button (33); The program setting device includes a touch screen (28) and a touch screen bracket (27), and the program setting device is located on the right side of the rack device; The air-blowing cooling device includes an air source interface (44) and a solenoid valve assembly (53), and the air-blowing cooling device is located on the rear end face of the frame assembly. The loading device includes a carrier base plate (31), and a product (42) is placed on top of the carrier base plate (31).

2. The desktop hot air cold riveting machine according to claim 1, characterized in that: The loading device includes a loading base plate (31), and the loading base plate (31) is located on top of the Y-axis moving plate (30). Quick clamps (32) are provided at the center of the front and rear end faces of the top of the loading base plate (31).

3. The desktop hot air cold riveting machine according to claim 1, characterized in that: The distribution box device includes a distribution panel handle (41), a distribution box shell (1), a power switch (39), and a power cord interface (40), and the distribution box device is located on the rear end face of the rack device.

4. The desktop hot air cold riveting machine according to claim 1, characterized in that: The bottom of the distribution box shell (1) and the hot air controller (3) are provided with foot cups (2), and the bottom of the foot cups (2) are all glued with anti-slip pads.

5. The desktop hot air cold riveting machine according to claim 1, characterized in that: The touch screen bracket (27) includes a touch screen fixing frame, and an mounting arm is provided at the center of the rear end face of the touch screen fixing frame, which is fixedly connected to the right rear end face of the power distribution box housing (1).

6. The desktop hot air cold riveting machine according to claim 1, characterized in that: The Y-axis moving plate (30) is arranged parallel to the distribution box housing (1), and the top of the distribution box housing (1) is provided with a frame base plate (29).

7. The desktop hot air cold riveting machine according to claim 1, characterized in that: The included angle between the left upright plate (4), the right upright plate (5) and the top of the distribution box shell (1) is set to 90 degrees, and a wire cover plate (6) is provided on the right side of the left upright plate (4).

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