A waterproof brushless permanent magnet DC motor

Abstract

The invention provides a waterproof brushless permanent magnet DC motor, and relates to the technical field of improved DC motor wiring. A cavity is provided on the left side of a cover body, and the cavity is closed by the right end face of a mounting plate. A through hole is provided inside the cover body, and a guide ball is provided on the inner wall of the through hole. The invention solves the problem that, due to the need to reserve a certain gap during assembly, when the motor is in use, external water can easily enter the inside of the shell from the connection gap between the rotating shaft and the shell, and when too much water enters the inside of the shell, the operation of the motor will be affected. By providing a cover body, a connecting pipe and a pump, when the motor is in use, the pump installed on the bottom end face of the shell can be started to extract air from the inside of the cover body by using the connecting pipe, and the active exhaust of the cover body can be used to quickly remove the moisture contained in the sealing part between the current transmission shaft and the mounting plate, thereby achieving a more practical purpose.

Description

Technical Field

[0001] The invention relates to the technical field of improved connection of direct current motors, in particular to a waterproof brushless permanent magnet direct current motor. Background Art

[0002] A permanent magnet brushless motor is a permanent magnet motor that is commutated by an electronic circuit or controlled by current. There are two types of permanent magnet brushless motors: sinusoidal wave drive and square wave drive. The driving current of a rectangular wave is usually called a permanent magnet brushless DC motor. When this type of motor is in use, in order to ensure that its internal components can maintain a good working environment, the motor is generally required to have a corresponding sealing function. When the existing motor is in use, a corresponding bearing needs to be set between the shaft part and the housing part of the motor for use. However, a certain gap needs to be reserved during assembly, so that when the motor is in use, external water can easily enter the interior of the housing through the connection gap between the shaft and the housing. When too much water enters the interior of the housing, it will affect the operation of the motor.

[0003] Therefore, in view of this, the existing structure and defects are studied and improved, and a waterproof brushless permanent magnet DC motor is provided to achieve a more practical purpose. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a waterproof brushless permanent magnet DC motor to solve the problem that due to the need to set corresponding bearings between the rotating shaft part and the shell part of the motor for use, but due to the need to reserve a certain gap during assembly, when the motor is in use, external water can easily enter the interior of the shell through the connection gap between the rotating shaft and the shell, and when too much water enters the interior of the shell, it will affect the operation of the motor.

[0005] The present invention provides a waterproof brushless permanent magnet DC motor, which specifically includes: a shell, the main body of the shell is made of metal, and the shell is an integral sealing structure, a mounting plate is fixedly connected to the left side of the shell, the main body of the mounting plate is a rectangular structure with four outer corners being arc-shaped structures, and the size of the mounting plate is larger than the size of the shell, a through hole is opened inside the mounting plate, and a bearing is installed inside the through hole opened inside the mounting plate, and a cover body is fixedly connected to the right side surface of the mounting plate, the main body of the cover body is an annular structure, and a cavity is opened on the left side of the cover body, the cavity is closed by the right end face of the mounting plate, and a through hole is opened inside the cover body, and a guide ball is arranged on the inner wall of the through hole.

[0006] Furthermore, a transmission shaft is installed inside the shell, the length of the transmission shaft is greater than the length of the shell, and the left side of the transmission shaft extends outward from the shell and the mounting plate fixedly connected to the left side surface of the shell, and the transmission shaft is installed on the inner side of the mounting plate through a bearing, and the transmission shaft is located on the inner side of the cover body arranged on the right end surface of the mounting plate, and the outer wall of the transmission shaft is rollingly connected with the guide ball arranged on the inner wall of the cover body.

[0007] Furthermore, the main body of the guide ball is a spherical structure, and the guide ball is rotatably connected to the inner wall of the cover body, and the diameter of the through hole opened inside the cover body is smaller than the diameter of the through hole opened in the mounting plate, and the diameter of the cover body is smaller than the diameter of the mounting plate, and a through hole is opened inside the mounting plate, which is a mounting hole, and the mounting holes are opened in a circular array at the four corners inside the shell, and each of the four mounting holes is installed with a fixing bolt, and the fixing bolt, the mounting plate and the shell together constitute a connecting structure.

[0008] Furthermore, a pump is fixedly connected to the bottom end surface of the shell, and the pump is connected to the shell by bolts. The pump is used to exhaust air to the outside, and a through hole is opened at the bottom end of the outer peripheral surface of the cover body, and a connecting pipe is fixedly connected to the inside of the through hole. The main body of the connecting pipe is a flexible structure, and the connecting pipe is L-shaped, and the right side of the cross member in the connecting pipe is connected to the left side of the pump arranged on the bottom end surface of the shell. When the pump arranged on the bottom end surface of the shell is in an open state, the pump is in a state of exhausting air from the inside of the shell through the connecting pipe and the cover body, and the cover body is located on the inner side of the shell.

[0009] Furthermore, a seat body is fixedly connected to the top surface of the shell, the main body of the seat body is a box structure with an open top, and a mounting hole is opened on the top surface of the seat body, the mounting hole is a screw hole, and there are four screw holes in total, the four screw holes are respectively opened at the four corners of the top surface of the seat body, and a controller is fixedly connected to the left side surface of the seat body, the diameter of the controller is smaller than the diameter of the left end surface of the seat body, the controller and the seat body together constitute a control structure, and a driver is fixedly connected to the front end surface of the seat body, and an output shaft is arranged on the rear side of the driver.

[0010] Furthermore, the bevel gears C are provided at two locations, and the two bevel gears C are respectively installed on the left and right sides of the bevel gear B, and the two bevel gears C are coaxially installed with the bevel gear B. The bevel gears C are not in a meshing transmission state with the bevel gear B, and bevel gears D are installed on the outer sides of the two bevel gears C. The bevel gears D are provided at two locations, and the two bevel gears D are respectively meshing and transmitting with the bevel gears C located on the left and right sides of the bevel gear B, and the bevel gears C and the bevel gears D together constitute a meshing transmission structure.

[0011] Furthermore, the two stators are fixedly connected to the front and rear side positions inside the shell, and the two stators are matched with the rotor arranged on the outer peripheral surface of the transmission shaft. When the stator is in the energized state, the rotor and the transmission shaft are in a synchronous rotation state, and the stator, the rotor and the transmission shaft together constitute a transmission structure.

[0012] Furthermore, the seat body is internally rotatably connected with a guide plate, and two guide plates are provided in total, and the lengths of the two guide plates are both smaller than the internal width of the seat body, and the two guide plates are respectively installed at the left and right sides of the seat body, and guide shafts are installed at the inner center positions of the two guide plates, and are coaxially connected to the bevel gear D through the guide shafts. When the driver is in a driving state for the bevel gear A, the bevel gear B is in a synchronous following rotation state of the bevel gear A, and the two bevel gears C arranged on the outside of the bevel gear B are in a synchronous following rotation state, and synchronously mesh with the bevel gear D arranged in the guide plate for transmission, driving the two guide plates located in the seat body to be in a synchronous outward flipping state, and a connecting column is fixedly connected to the top end surface of the guide plate, and the connecting column is provided at four places in total, wherein every two longitudinally adjacent connecting columns form a group, and the two The connecting columns are fixedly connected to the top surfaces of the two guide plates respectively, and through holes are opened inside the two groups of connecting columns, which are threading holes, and a cover plate is installed on the top of the base body, the cover plate is used to cover the top opening of the base body, and a crossbeam is fixedly connected inside the cover plate, the crossbeam is arranged horizontally, and the crossbeam and the cover plate together constitute a covering structure, and a monitor is fixedly connected to the bottom end surface of the crossbeam, the monitor is used to shoot the picture of the connecting column, and through holes are opened inside the cover plate, and there are four through holes in total, and the four through holes are opened at the four corners of the inner part of the cover plate respectively, and the position and size of the through holes match the screw holes opened at the four corners on the top surface of the base body, and fixing bolts are installed inside the four through holes opened on the top of the cover plate, and the fixing bolts pass through the cover plate downward and are connected to the screw holes opened on the top surface of the base body.

[0013] Furthermore, a bevel gear A is installed on the output shaft installed on the rear side of the driver, and the bevel gear A and the driver together constitute a driving structure, and a bevel gear B is installed on the rear side of the bevel gear A, and the bevel gear B and the bevel gear A together constitute a transmission structure, and a bevel gear C is also installed on the outer side of the bevel gear B.

[0014] Furthermore, the cover body and the guide ball together constitute a guiding structure for the transmission shaft, and a rotor is installed on the outer circumferential surface of the transmission shaft, the diameter of the rotor is larger than the diameter of the transmission shaft, the transmission shaft and the rotor together constitute a rotating structure, and a stator is fixedly connected to the inside of the shell, the main body of the stator is an arc structure, and the expansion angle of the stator is larger than the diameter of the transmission shaft and the rotor, and the stator is provided at two locations.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, by providing a connecting post and a controller that can detect whether the wire harness is charged, when the device is in use, if the charged wire harness is in close contact with the current connecting post, if the connecting post detects that a single wire harness is charged, it can be synchronously fed back to the controller, and the controller controls the driver to drive the guide plate to flip to shield the connecting post. Compared with the traditional motor that is easily damaged when connected with power, this design can protect the motor.

[0017] 2. In the present invention, by providing a cover body, a connecting pipe and a pump, when the motor is in use, the pump installed on the bottom end surface of the shell can be started to extract air from the inside of the cover body using the connecting pipe, and the active exhaust of the cover body can be used to quickly remove the moisture contained in the sealing part between the current transmission shaft and the mounting plate, thereby achieving a more practical purpose. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] In the attached picture:

[0020] Figure 1 It shows a schematic diagram of the front and side view of the motor in a partially disassembled and cut-away state according to an embodiment of the present invention;

[0021] Figure 2 It shows a schematic diagram of a partial structural section and a top and side view of a motor in a disassembled state according to an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the front and side structure of a motor in an assembled state according to an embodiment of the present invention is shown;

[0023] Figure 4 A schematic diagram of the assembly structure of the mounting plate and mounting bolts of the motor according to an embodiment of the present invention is shown;

[0024] Figure 5 A schematic diagram of the assembly structure of the cover and the ball guide of the motor according to an embodiment of the present invention is shown;

[0025] Figure 6 A schematic diagram of the assembly structure of a cover plate and a crossbeam of a motor according to an embodiment of the present invention is shown;

[0026] Figure 7 The motor according to the embodiment of the present invention is shown. Figure 2 The enlarged structural diagram at A in the middle;

[0027] Figure 8 The motor according to the embodiment of the present invention is shown. Figure 2 Enlarged structural diagram at B in the middle.

[0028] Reference numerals list

[0029] 1. Shell; 2. Mounting plate; 3. Mounting bolt; 4. Bearing; 5. Cover; 6. Guide ball; 7. Pump; 8. Pipe; 9. Drive shaft; 10. Rotor; 11. Stator; 12. Seat; 13. Controller; 14. Driver; 15. Bevel gear A; 16. Bevel gear B; 17. Bevel gear C; 18. Bevel gear D; 19. Guide plate; 20. Connecting column; 21. Threading hole; 22. Cover plate; 23. Crossbeam; 24. Monitor; 25. Fixing bolt. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and examples.

[0031] Embodiment 1:

[0032] As attached Figure 1 To Attachment Figure 8 As shown:

[0033] The present invention provides a waterproof brushless permanent magnet DC motor, comprising: a shell 1, the main body of the shell 1 is made of metal, and the shell 1 is an integral sealing structure, a mounting plate 2 is fixedly connected to the left side of the shell 1, the main body of the mounting plate 2 is a rectangular structure with four outer corners of arc structure, and the size of the mounting plate 2 is larger than the size of the shell 1, a through hole is opened inside the mounting plate 2, and a bearing 4 is installed inside the through hole opened inside the mounting plate 2, and a cover body 5 is fixedly connected to the right side surface of the mounting plate 2, the main body of the cover body 5 is an annular structure, and a cavity is opened on the left side of the cover body 5, the cavity is closed by the right end surface of the mounting plate 2, and the cover body 5 A through hole is provided inside, and a guide ball 6 is provided on the inner wall of the through hole. A guide plate 19 is connected to the internal rotation of the seat body 12. There are two guide plates 19 in total, and the lengths of the two guide plates 19 are smaller than the internal width of the seat body 12. The two guide plates 19 are respectively installed at the left and right sides of the seat body 12. A guide shaft is installed at the inner center position of the two guide plates 19, and is coaxially connected to the bevel gear D18 through the guide shaft. When the driver 14 is in the driving state for the bevel gear A15, the bevel gear B16 is in the synchronous following rotation state of the bevel gear A15, and the two bevel gears C17 arranged on the outer side of the bevel gear B16 are in the synchronous following rotation state. The guide plates 19 are in a synchronous outwardly flipped state and are synchronously meshed with the bevel gear D18 arranged in the guide plate 19 to drive the two guide plates 19 in the seat body 12. The top surface of the guide plate 19 is fixedly connected with a connecting column 20. There are four connecting columns 20 in total, wherein every two longitudinally adjacent connecting columns 20 form a group, and the two groups of connecting columns 20 are respectively fixedly connected to the top surfaces of the two guide plates 19. The insides of the two groups of connecting columns 20 are provided with through holes, which are threading holes 21. A cover plate 22 is installed at the top of the seat body 12. The cover plate 22 is used to cover the top opening of the seat body 12, and the inside of the cover plate 22 is fixedly connected with a transverse The beam 23 and the cross beam 23 are arranged horizontally, and the cross beam 23 and the cover plate 22 together form a covering structure, and a monitor 24 is fixedly connected to the bottom end surface of the cross beam 23, and the monitor 24 is used to shoot the picture of the connecting column 20, and a through hole is opened inside the cover plate 22, and there are four through holes in total, and the four through holes are respectively opened at the four corners of the inner part of the cover plate 22, and the position and size of the through hole are matched with the screw holes opened at the four corners on the top end surface of the seat body 12, and the four through holes opened at the top end of the cover plate 22 are installed with fixing bolts 25, and the fixing bolts 25 pass through the cover plate 22 downward and are connected to the screw holes opened on the top end surface of the seat body 12.

[0034] Among them, the main body of the guide ball 6 is a spherical structure, and the guide ball 6 is rotatably connected to the inner wall of the cover body 5, and the diameter of the through hole opened inside the cover body 5 is smaller than the diameter of the through hole opened in the mounting plate 2, and the diameter of the cover body 5 is smaller than the diameter of the mounting plate 2, and the mounting plate 2 is provided with a through hole inside, which is a mounting hole, and the mounting holes are arranged in a circular array at the four corners of the shell 1, and each of the four mounting holes is installed with a mounting bolt 3, and the mounting bolt 3, the mounting plate 2 and the shell 1 together form a connection structure, and the pump 7 is fixedly connected to the bottom end surface of the shell 1 The pump 7 is connected to the shell 1 by bolts, and the pump 7 is used to exhaust air to the outside, and a through hole is opened at the bottom end of the outer peripheral surface of the cover body 5, and a connecting pipe 8 is fixedly connected to the inside of the through hole. The main body of the connecting pipe 8 is a flexible structure, and the connecting pipe 8 is L-shaped, and the right side of the cross member in the connecting pipe 8 is connected to the left side of the pump 7 arranged on the bottom end surface of the shell 1. When the pump 7 arranged on the bottom end surface of the shell 1 is in the open state, the pump 7 is in a state of exhausting air from the inside of the shell 1 through the connecting pipe 8 and the cover body 5, and the cover body 5 is located at the inner side of the shell 1.

[0035] Among them, a transmission shaft 9 is installed inside the shell 1, the length of the transmission shaft 9 is greater than the length of the shell 1, and the left side of the transmission shaft 9 extends outward from the shell 1 and the mounting plate 2 fixedly connected to the left side of the shell 1, and the transmission shaft 9 is installed on the inner side of the mounting plate 2 through the bearing 4, and the transmission shaft 9 is located on the inner side of the cover body 5 arranged on the right end surface of the mounting plate 2, the outer wall of the transmission shaft 9 is rollingly connected with the guide ball 6 arranged on the inner wall of the cover body 5, the cover body 5 and the guide ball 6 together constitute a guide structure for the transmission shaft 9, and a rotor 10 is installed on the outer peripheral surface of the transmission shaft 9, the diameter of the rotor 10 is greater than the diameter of the transmission shaft 9, the transmission shaft 9 and the rotor 10 together constitute a rotating structure, and a stator 11 is fixedly connected to the inside of the shell 1, the main body of the stator 11 is an arc structure, and the expansion angle of the stator 11 is greater than the diameter of the transmission shaft 9 and the rotor 10, and the stator 11 is provided at two locations.

[0036] During use: When the motor is assembled and used, the transmission shaft 9 can be installed to the inner side of the housing 1 and the mounting plate 2, and when the transmission shaft 9 is assembled to the inner side of the housing 1 and the mounting plate 2, the bearing 4 installed in the mounting plate 2 can be used to achieve a stable support and guiding operation for the current transmission shaft 9, and after the installation is completed, the two stators 11 set in the housing 1 can be used to match the rotor 10 set on the outer peripheral surface of the transmission shaft 9, so that when the device is in use, when the two stators 11 set in the housing 1 are energized, the transmission shaft 9 can be driven to rotate inside the bearing 4 by forming a match with the rotor 10 set on the outside of the transmission shaft 9.

[0037] Embodiment 2:

[0038] A waterproof brushless permanent magnet DC motor is provided based on the first embodiment, which can realize the rapid installation of the current transmission shaft 9, but still cannot realize the rapid discharge of water. Therefore, the following technical solution is also provided.

[0039] Among them, two stators 11 are respectively fixedly connected to the front and rear side positions inside the shell 1, and the two stators 11 are matched with the rotor 10 arranged on the outer peripheral surface of the transmission shaft 9. When the stator 11 is in the power-on state, the rotor 10 and the transmission shaft 9 are in a synchronous rotation state, and the stator 11, the rotor 10 and the transmission shaft 9 together constitute a transmission structure. A seat body 12 is fixedly connected to the top surface of the shell 1. The main body of the seat body 12 is a box structure with an open top, and a mounting hole is opened on the top surface of the seat body 12. The mounting hole is a screw hole, and there are four screw holes in total. The four screw holes are respectively opened at the four corners of the top surface of the seat body 12, and a controller 13 is fixedly connected to the left side surface of the seat body 12. The diameter of the controller 13 is smaller than the diameter of the left end surface of the seat body 12. The controller 13 and the seat body 12 together constitute a control structure, and a driver 14 is fixedly connected to the front end surface of the seat body 12, and an output shaft is arranged on the rear side of the driver 14.

[0040] When in use, if it is necessary to remove the moisture contained in the connection between the current transmission shaft 9 and the mounting plate 2, the pump 7 installed on the bottom end face of the shell 1 can be started to use the connecting pipe 8 arranged on the left side face of the pump 7 to extract air from the inside of the cover body 5 arranged on the inner side of the mounting plate 2, so that the moisture entering the cover body 5 can be quickly extracted and the corresponding cleaning operation can be performed. When in use, a guide ball 6 is also arranged on the inner wall of the current cover body 5. Therefore, when the transmission shaft 9 rotates, the setting of the guide ball 6 can be synchronously utilized to make the cover body 5 rotate more smoothly.

[0041] Embodiment three:

[0042] A waterproof brushless permanent magnet DC motor is provided based on the second embodiment, which can achieve rapid drainage of water, but still cannot achieve corresponding wiring protection, so the following technical solution is also provided.

[0043] Among them, a bevel gear A15 is installed on the output shaft installed on the rear side of the driver 14, and the bevel gear A15 and the driver 14 together constitute a driving structure, and a bevel gear B16 is installed on the rear side of the bevel gear A15, and the bevel gear B16 and the bevel gear A15 together constitute a transmission structure, and a bevel gear C17 is also installed on the outside of the bevel gear B16, and there are two bevel gears C17 in total, and the two bevel gears C17 are respectively installed on the left and right sides of the bevel gear B16, and the two bevel gears C17 are coaxially installed with the bevel gear B16, and the bevel gear C17 is not in a meshing transmission state with the bevel gear B16, and the outsides of the two bevel gears C17 are installed with bevel gears D18, and there are two bevel gears D18 in total, and the two bevel gears D18 are respectively meshing and transmitting with the bevel gears C17 located on the left and right sides of the bevel gear B16, and the bevel gears C17 and the bevel gear D18 together constitute a meshing transmission structure.

[0044] During use, when wiring is required, the wiring harness can be connected to the connecting column 20 set on the top end surface of the guide plate 19. When the led-out wiring harness has electricity, when the wiring harness contacts the connecting column 20 currently set on the top end surface of the guide plate 19, it can be synchronously detected by utilizing the controller 13 set on the left side surface of the seat body 12, and the driver 14 installed on the front end surface of the seat body 12 can be started synchronously to start and drive the bevel gear A15 to rotate, and the rotation drive of the bevel gear C17 and the bevel gear D18 can realize automatic rotation shielding protection for the guide plate 19 and the connecting column 20 fixedly connected to the outside of the guide plate 19.

Claims

1. A waterproof brushless permanent magnet DC motor, characterized in that: include: A shell (1), wherein the main body of the shell (1) is made of metal, and the shell (1) is an integral sealing structure, a mounting plate (2) is fixedly connected to the left side of the shell (1), the main body of the mounting plate (2) is a rectangular structure with four outer corners being arc-shaped structures, and the size of the mounting plate (2) is larger than the size of the shell (1), a through hole is provided inside the mounting plate (2), and a bearing (4) is installed inside the through hole provided inside the mounting plate (2), and a cover body (5) is fixedly connected to the right side surface of the mounting plate (2), the main body of the cover body (5) is an annular structure, and a cavity is provided on the left side of the cover body (5), and the cavity is closed by the right end surface of the mounting plate (2), and a through hole is provided inside the cover body (5), and a guide ball (6) is provided on the inner wall of the through hole; A pump (7) is fixedly connected to the bottom end surface of the shell (1), the pump (7) is connected to the shell (1) by bolts, and the pump (7) is used to discharge air to the outside, and a through hole is opened at the bottom end of the outer peripheral surface of the cover body (5), and a connecting pipe (8) is fixedly connected to the inside of the through hole, the main body of the connecting pipe (8) is a flexible structure, and the connecting pipe (8) is L-shaped, and the right side of the transverse member in the connecting pipe (8) is connected to the left side of the pump (7) arranged on the bottom end surface of the shell (1), when the pump (7) arranged on the bottom end surface of the shell (1) is in an open state, the pump (7) is in a state of exhausting air from the inside of the shell (1) through the connecting pipe (8) and the cover body (5), and the cover body (5) is located at the inner side of the shell (1); A seat body (12) is fixedly connected to the top surface of the shell (1), the main body of the seat body (12) is a box structure with an open top, and a mounting hole is opened on the top surface of the seat body (12), the mounting hole is a screw hole, and there are four screw holes in total, and the four screw holes are respectively opened at the four corners of the top surface of the seat body (12), and a controller (13) is fixedly connected to the left side surface of the seat body (12), the diameter of the controller (13) is smaller than the diameter of the left end surface of the seat body (12), and the controller (13) and the seat body (12) together form a control structure, and a driver (14) is fixedly connected to the front end surface of the seat body (12), and an output shaft is arranged at the rear side of the driver (14); A bevel gear A (15) is mounted on the output shaft mounted on the rear side of the driver (14), the bevel gear A (15) and the driver (14) together form a driving structure, and a bevel gear B (16) is mounted on the rear side of the bevel gear A (15), the bevel gear B (16) and the bevel gear A (15) together form a transmission structure, and a bevel gear C (17) is also mounted on the outer side of the bevel gear B (16); The bevel gears C (17) are provided at two locations, and the two bevel gears C (17) are respectively installed at the left and right sides of the bevel gear B (16), and the two bevel gears C (17) are coaxially installed with the bevel gear B (16), the bevel gears C (17) are not in a meshing transmission state with the bevel gear B (16), and the outer sides of the two bevel gears C (17) are both installed with bevel gears D (18), the bevel gears D (18) are provided at two locations, and the two bevel gears D (18) are respectively meshing and transmitting with the bevel gears C (17) located at the left and right sides of the bevel gear B (16), and the bevel gears C (17) and the bevel gears D (18) together form a meshing transmission structure; The seat body (12) is internally rotatably connected with a guide plate (19), the guide plates (19) are provided at two locations, and the lengths of the two guide plates (19) are both smaller than the internal width of the seat body (12), and the two guide plates (19) are respectively installed at the left and right sides of the seat body (12), and the inner center positions of the two guide plates (19) are both installed with guide shafts, and are coaxially connected to the bevel gear D (18) through the guide shafts, and when the driver (14) is in a driving state for the bevel gear A (15), the bevel gear B (16) is in a synchronously following state with the bevel gear The guide plates (19) are rotated in a synchronous manner, and the two bevel gears C (17) arranged outside the bevel gear B (16) are in a synchronous following rotation state, and are synchronously meshed with the bevel gear D (18) arranged in the guide plate (19) to drive the two guide plates (19) located in the seat body (12) to be in a synchronous outward flipping state, and the top surface of the guide plate (19) is fixedly connected with a connecting column (20), and the connecting column (20) is provided at four places, wherein every two longitudinally adjacent connecting columns (20) form a group, and the two groups of connecting columns (20) ) are respectively fixedly connected to the top surfaces of the two guide plates (19), the two groups of connecting columns (20) are provided with through holes inside, the through holes are threading holes (21), and a cover plate (22) is installed at the top of the base body (12), the cover plate (22) is used to cover the top opening of the base body (12), and a crossbeam (23) is fixedly connected inside the cover plate (22), the crossbeam (23) is arranged horizontally, and the crossbeam (23) and the cover plate (22) together form a covering structure, and a monitor (24) is fixedly connected to the bottom end surface of the crossbeam (23) The monitor (24) is used to capture the image of the connecting column (20), and a through hole is provided inside the cover plate (22). The through holes are provided at four positions in total, and the four through holes are respectively provided at the four corners inside the cover plate (22). The positions and sizes of the through holes match the screw holes provided at the four corners on the top surface of the base body (12), and fixing bolts (25) are installed inside the four through holes provided at the top of the cover plate (22), and the fixing bolts (25) pass through the cover plate (22) downward and are connected to the screw holes provided on the top surface of the base body (12).

2. A waterproof brushless permanent magnet DC motor as claimed in claim 1, characterized in that: The main body of the guide ball (6) is a spherical structure, and the guide ball (6) is rotatably connected to the inner wall of the cover body (5), and the diameter of the through hole opened inside the cover body (5) is smaller than the diameter of the through hole opened in the mounting plate (2), and the diameter of the cover body (5) is smaller than the diameter of the mounting plate (2), and the mounting plate (2) is provided with a through hole inside, which is a mounting hole. The mounting holes are arranged in a circular array at the four corners of the shell (1), and each of the four mounting holes is installed with a mounting bolt (3), and the mounting bolt (3) and the mounting plate (2) and the shell (1) together form a connection structure.

3. A waterproof brushless permanent magnet DC motor as claimed in claim 1, characterized in that: A transmission shaft (9) is installed inside the housing (1), the length of the transmission shaft (9) is greater than the length of the housing (1), and the left side of the transmission shaft (9) extends outward from the housing (1) and a mounting plate (2) fixedly connected to the left side surface of the housing (1), and the transmission shaft (9) is installed at an inner side position of the mounting plate (2) through a bearing (4), and the transmission shaft (9) is located at an inner side position of a cover body (5) arranged on the right end surface of the mounting plate (2), and the outer wall of the transmission shaft (9) is rollingly connected to a guide ball (6) arranged on the inner wall of the cover body (5).

4. A waterproof brushless permanent magnet DC motor as claimed in claim 3, characterized in that: The cover body (5) and the guide ball (6) together form a guide structure for the transmission shaft (9), and a rotor (10) is installed on the outer peripheral surface of the transmission shaft (9), the diameter of the rotor (10) is larger than the diameter of the transmission shaft (9), the transmission shaft (9) and the rotor (10) together form a rotating structure, and a stator (11) is fixedly connected to the inside of the housing (1), the main body of the stator (11) is an arc structure, and the expansion angle of the stator (11) is larger than the diameter of the transmission shaft (9) and the rotor (10), and the stator (11) is provided at two locations.

5. A waterproof brushless permanent magnet DC motor as claimed in claim 4, characterized in that: The two stators (11) are respectively fixedly connected to the front and rear side surfaces of the housing (1), and the two stators (11) are matched with the rotor (10) arranged on the outer peripheral surface of the transmission shaft (9). When the stator (11) is in a powered state, the rotor (10) and the transmission shaft (9) are in a synchronous rotation state, and the stator (11), the rotor (10) and the transmission shaft (9) together form a transmission structure.

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