Skylight drain pipe dredging device for automobile maintenance

Abstract

The invention discloses a sunroof drain pipe dredging device for automobile maintenance, which comprises a shell and a handle rotatably mounted on the shell, and further comprises a rotating cylinder located in the shell and connected with the handle, a plurality of guide columns connected with the inner wall of the top of the rotating cylinder are vertically arranged on a bottom plate of the rotating cylinder, and the guide columns are connected with the inner wall of the top of the rotating cylinder; a pay-off wheel connected with a motor is further arranged on the bottom plate, a connecting seat is arranged at the bottom of the bottom plate, and a supporting rod is horizontally arranged on the connecting seat; the guide table is located below the connecting base, the face, facing the connecting base, of the guide table is in a wave shape, and the supporting rod abuts against the guide table; the connecting pipe is positioned below the shell and is connected with a sunroof drain pipe of the automobile; the dredging pipe is arranged in the shell in a penetrating mode, and the dredging pipe enters from the handle, sequentially passes through the pay-off wheel, the bottom plate, the connecting base and the guide table and finally enters the skylight drainage pipe of the automobile through the connecting pipe. Compared with the prior art, the dredging and cleaning effects on the skylight drainage pipe of the automobile are improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline dredging, in particular to a skylight drain pipe dredging device for automobile maintenance. Background Art

[0002] During long-term use, the sunroof drain pipe of the car is prone to blockage due to the continuous accumulation of dust, sludge and other debris. This blockage will not only cause water to accumulate in the sunroof, but may also further penetrate into the car, causing a series of problems such as mildew of the interior and damage to electronic components, seriously affecting driving comfort and overall vehicle performance. Therefore, in regular car maintenance, the dredging and maintenance of the sunroof drain pipe is particularly important. The currently commonly used dredging solutions usually rely on manually operated dredgers, such as thin steel wires or special tools, to manually penetrate the inside of the drain pipe for physical dredging. This process is not only time-consuming and laborious, but also has many limitations. First, due to the complex path of the drain pipe and the small space, it is difficult for manual operation to accurately control the direction and force of the dredger, which can easily lead to incomplete dredging or excessive damage to the inner wall of the drain pipe. Secondly, the drainage pipe section hidden deep inside the vehicle is often difficult to reach, making some blocked areas unable to be effectively cleaned. In addition, the simple physical poking method can often only solve the surface blockage problem, but is helpless against the stubborn dirt adhering to the pipe wall, resulting in unsatisfactory unblocking and cleaning effects.

[0003] In order to solve the problems of the prior art, the present application provides a sunroof drain pipe dredging device for automobile maintenance. Summary of the invention

[0004] Aiming at the problem that unclogging the sunroof drain pipe of a car in the prior art is not only time-consuming and labor-intensive, but also has poor unclogging and cleaning effects, the present invention proposes a sunroof drain pipe unclogging device for car maintenance.

[0005] The technical solution of the present invention is to disclose a sunroof drain pipe dredging device for automobile maintenance, comprising a housing and a handle rotatably mounted on the housing, and characterized in that it also includes: A rotating drum, which is located in the shell and connected to the handle, a plurality of guide posts connected to the inner wall of the top of the rotating drum are vertically arranged on the bottom plate of the rotating drum, two pay-off wheels connected to the motor are also arranged on the bottom plate, the bottom plate can move along the setting direction of the guide posts to approach or move away from the inner wall of the top of the rotating drum, a connecting seat is arranged at the bottom of the bottom plate, and a support rod is horizontally arranged on the connecting seat; A guide platform, which is located below the connecting seat, wherein a side of the guide platform facing the connecting seat is configured in a wave shape, and the support rod abuts against the guide platform; A connecting pipe, located below the housing, for connecting to a sunroof drain pipe of a car; A dredging pipe is arranged through the shell, the dredging pipe enters from the handle, passes through the pay-off wheel, the bottom plate, the connecting seat, the guide platform in sequence, and finally enters the sunroof drain pipe of the car through the connecting pipe, and the dredging pipe is clamped by the two pay-off wheels.

[0006] Furthermore, a conductive slip ring is provided at the connection between the handle and the rotating cylinder, the conductive slip ring includes a stator and a rotor, the stator is provided on the top surface of the shell, and the handle is fixedly connected to the rotor.

[0007] Furthermore, a bearing is arranged at the center of the top of the shell, the bearing is located below the conductive slip ring, the outer ring of the bearing is fixed on the shell, and the inner ring of the bearing is sleeved on the top of the rotating cylinder.

[0008] Furthermore, the handle is composed of a sleeve and an anti-slip member wrapping the sleeve, the rotor is fixed on the sleeve, and the bottom of the sleeve is connected to the rotating cylinder.

[0009] Furthermore, a plurality of convex grooves are vertically arranged on the surface of the anti-slip member.

[0010] Furthermore, a three-way pipe is arranged on the side of the connecting pipe, a first end of the three-way pipe is connected to the connecting pipe, an air pump is arranged on the second end of the three-way pipe, and a liquid storage bottle for storing detergent is arranged on the third end of the three-way pipe.

[0011] Furthermore, a photoelectric switch and a controller are provided on the housing. The photoelectric switch transmits a signal to the controller after being triggered, and the controller is used to control the air pump to be turned on or off.

[0012] Furthermore, the photoelectric switch is arranged through the shell, and one end thereof is located in the gap between the shell and the rotating cylinder. The outer wall of the rotating cylinder is provided with a plurality of sensing elements. When the sensing elements rotate with the rotating cylinder to the position of the photoelectric switch, the photoelectric switch is triggered.

[0013] Furthermore, a spring is provided on the guide column, and the spring abuts against the bottom plate and the top inner wall of the rotating cylinder at the same time. When the spring is in a normal state, the distance between the bottom plate and the top inner wall of the rotating cylinder is the farthest.

[0014] Furthermore, a brush is provided at the end of the dredging pipe for cleaning the inside of the sunroof drain pipe of the car.

[0015] Compared with the prior art, the present invention enhances the cleaning ability and improves the dredging efficiency and effect by controlling the dredging pipe to perform a composite motion mode of rotation and lifting. At the same time, the air pump delivers airflow to assist in removing dirt and enhance the penetration of the detergent. Combined with the action of the brush and the detergent, the car's sunroof drain pipe can be dredged and cleaned more comprehensively and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a side view of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 It is a schematic diagram of the internal structure of the present invention; Figure 4 This is an exploded schematic diagram of the internal structure of the present invention; Figure 5 This is a schematic diagram of the structure of the rotating drum of the present invention; Figure 6 It is a schematic diagram of the structure of the guide platform of the present invention; Figure 7 It is a schematic diagram of the structure of the pay-off wheel of the present invention; Figure 8 This is a schematic diagram of the connecting pipe structure of the present invention; Fig. 9 It is a schematic cross-sectional view of the connecting pipe structure of the present invention.

[0018] Among them, the shell 1; bearing 11; photoelectric switch 12; controller 13; handle 2; sleeve 21; anti-slip part 22; conductive slip ring 23; rotating cylinder 3; bottom plate 31; guide column 32; spring 321; motor 33; pay-off wheel 34; connecting seat 35; support rod 36; induction part 37; guide platform 4; connecting pipe 5; three-way pipe 51; air pump 52; liquid storage bottle 53; dredging pipe 6; brush 61. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the present invention, rather than implying that each embodiment of the present invention must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0021] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0022] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0023] A sunroof drain pipe dredging device for car maintenance comprises a housing 1 and a handle 2 rotatably mounted on the housing 1, and is characterized in that it also comprises: The rotating cylinder 3 is located in the housing 1 and connected to the handle 2. A plurality of guide posts 32 connected to the inner wall of the top of the rotating cylinder 3 are vertically arranged on the bottom plate 31 of the rotating cylinder 3. A pay-off wheel 34 connected to a motor 33 is also arranged on the bottom plate 31. The bottom plate 31 can move along the setting direction of the guide posts 32 to approach or move away from the inner wall of the top of the rotating cylinder 3. A connecting seat 35 is arranged at the bottom of the bottom plate 31, and a supporting rod 36 is horizontally arranged on the connecting seat 35. The guide platform 4 is located below the connecting seat 35. The side of the guide platform 4 facing the connecting seat 35 is configured to be wavy. The support rod 36 abuts against the guide platform 4. A connecting pipe 5, which is located below the housing 1 and is used to connect to a sunroof drain pipe of a car; The dredging pipe 6 is penetrated and arranged in the shell body 1. The dredging pipe 6 enters from the handle 2, passes through the wire-releasing wheel 34, the bottom plate 31, the connecting seat 35, the guide platform 4 in sequence, and finally enters the sunroof drain pipe of the car through the connecting pipe 5. The dredging pipe 6 is clamped by two wire-releasing wheels 34.

[0024] Furthermore, a conductive slip ring 23 is provided at the connection between the handle 2 and the rotating cylinder 3 . The conductive slip ring 23 includes a stator and a rotor. The stator is provided on the top surface of the housing 1 , and the handle 2 is fixedly connected to the rotor.

[0025] Furthermore, a bearing 11 is disposed at the center of the top of the housing 1 . The bearing 11 is located below the conductive slip ring 23 , and an outer ring of the bearing 11 is fixed on the housing 1 , while an inner ring of the bearing 11 is sleeved on the top of the rotating cylinder 3 .

[0026] Furthermore, the handle 2 is composed of a sleeve 21 and an anti-slip member 22 wrapping the sleeve 21 , the rotor is fixed on the sleeve 21 , and the bottom of the sleeve 21 is connected to the rotating cylinder 3 .

[0027] Furthermore, a plurality of convex grooves are vertically arranged on the surface of the anti-slip member 22 .

[0028] In a specific embodiment, Figures 1 to 7 In the orientation shown, the housing 1 of a sunroof drain pipe dredging device for car maintenance proposed in the present application is cylindrical, and a handle 2 is rotatably installed on the top of the housing 1. The handle 2 is composed of a sleeve 21 and an anti-slip member 22. The anti-slip member 22 is wrapped around the outside of the sleeve 21 to enhance the stability when holding the handle 2. In addition, a plurality of vertically arranged convex grooves are arranged on the surface of the anti-slip member 2 to ensure that the user can easily rotate the handle 2 in the horizontal direction during operation. A rotating cylinder 3 connected to the handle 2 is also arranged inside the housing 1. The top of the rotating cylinder 3 is connected to the bottom of the sleeve 21 by a screw connection, thereby ensuring that the rotating cylinder 3 can be synchronously rotated with the rotation operation of the handle 2. In order to make the rotation of the rotating cylinder 3 smoother, a bearing 11 is also arranged at the center of the top of the housing 1. The outer ring part of the bearing 11 is fixed to the top surface of the housing 1, and the inner ring part is sleeved on the top of the rotating cylinder 3 to form a tight nested connection. The introduction of the bearing 11 not only effectively reduces the friction and resistance of the rotating drum 3 during the rotation process, but also significantly improves the smoothness and stability of the rotation, and can extend the service life of the overall structure.

[0029] Here, inside the rotating cylinder 3, a bottom plate 31 is arranged at its lower end area. In order to guide the movement of the bottom plate 31, four vertically arranged guide posts 32 are arranged on the bottom plate 31. These guide posts 32 are arranged through the bottom plate 31, and the upper ends of the guide posts 32 are fixed to the top inner wall of the rotating cylinder 3, which play a role of stable support and guidance for the bottom plate 31. This design enables the bottom plate 31 to move linearly along the setting direction of the guide posts 32, so that the bottom plate 31 can approach or move away from the top inner wall of the rotating cylinder 3. The four guide posts 32 are evenly distributed on the bottom plate 31, which not only provides a stable motion trajectory for the bottom plate 31, but also effectively prevents the bottom plate 31 from offsetting or tilting during rotation or movement. It is worth mentioning that a pay-off wheel 34 is also arranged on the side of the bottom plate 31 facing the top inner wall of the rotating cylinder 3, and there are two pay-off wheels 34, both of which are connected to the motor 33. The two pay-off wheels 34 are driven to rotate by the motor 33, thereby realizing the release or recovery of the dredging pipe 6. And because the bottom plate 31 is connected to the rotating drum 3 through the guide column 32, when the rotating drum 3 rotates synchronously with the handle 2, the bottom plate 31 and the pay-off wheel 34 and the motor 33 installed on the bottom plate 31 will also rotate accordingly, so as to keep their relative positions always consistent.

[0030] It should be noted that a conductive slip ring 23 is provided at the connection between the handle 2 and the rotating cylinder 3, and is located directly above the bearing 11. The conductive slip ring 23 consists of two parts, a stator and a rotor, wherein the stator is fixed on the top surface of the housing 1, the rotor is located at the inner center of the stator, and the rotor is connected to the lower end of the sleeve 21 by screws, so that the rotor can rotate with the handle 2. In addition, a fixed block is provided on the outside of the stator, and a positioning column is provided on the top surface of the housing 1. The positioning column passes through the fixed block and is connected to the top surface of the housing 1. This design effectively prevents the stator from generating unnecessary displacement or rotation during the rotation of the rotor, thereby improving its stability. The power cord is connected to the motor 33 on the bottom plate 31 through the conductive slip ring 23. This design ensures the continuity of the power supply to the motor 33 when it rotates with the handle 2, and at the same time avoids the phenomenon that the power cord of the motor 33 is entangled during the rotation process, so as to ensure the reliability of the overall operation.

[0031] Here, a connection seat 35 is provided on the side of the bottom plate 31 facing away from the rotating drum 3. The connection seat 35 is fixed on the bottom surface of the bottom plate 31 and also rotates with the rotating drum 3. Two support rods 36 are symmetrically provided on both sides of the connection seat 35. The two support rods 36 are horizontally provided on both sides of the connection seat 35. A guide platform 4 is provided below the connection seat 35. The guide platform 4 is fixed on the bottom inner wall of the shell 1 and is in the shape of a circular ring. The connection seat 35 is located directly above the center of the guide platform 4. The support rod 36 abuts against a side of the guide platform 4 facing the connection seat 35. The contact surface between the guide platform 4 and the support rod 36 is specially designed to be in a wave shape, which can guide the support rod 36 to move along the trajectory of the wave surface as the rotating drum 3 rotates. Specifically, the wave-shaped design of the guide platform 4 enables the support rod 36 to push the bottom plate 31 up along the guide column 32 when the support rod 36 moves to the raised part of the wave surface during the process of rotating with the rotating cylinder 3, so that the bottom plate 31 moves toward the top of the rotating cylinder 3; on the contrary, when the support rod 36 moves to the recessed part of the wave surface, the bottom plate 31 descends along the guide column 32 away from the top of the rotating cylinder 3. When the user rotates the handle 2 to drive the rotating cylinder 3 to rotate, not only the rotation action is realized, but also the reciprocating lifting and lowering motion of the bottom plate 31 is triggered synchronously.

[0032] A connecting pipe 5 is also provided below the housing 1, and the connecting pipe 5 is fixed to the bottom surface of the housing 1. In actual use, the connecting pipe 5 is inserted into the sunroof drain pipe of the car. A dredging pipe 6 is also provided inside the housing 1, and the dredging pipe 6 runs through the entire housing 1. Specifically, the dredging pipe 6 enters from the sleeve 21 of the handle 2, enters the rotating cylinder 3, passes through the gap between the two pay-off wheels 34, and contacts the two pay-off wheels 34 at the same time, and then passes through the bottom plate 31 to reach the connecting seat 35, passes through the center of the guide platform 4, passes through the bottom of the housing 1 to reach the connecting pipe 5, and finally enters the sunroof drain pipe of the car that needs to be dredged. When the sunroof drain pipe of the car is being dredged, the pay-off wheel 34 is controlled to rotate by the motor 33, and the length of the dredging pipe 6 entering the sunroof drain pipe can be controlled to meet the dredging needs of different depths and complexities. And when the user rotates the handle 2, since the dredging pipe 6 is located between the two pay-off wheels 34, the two pay-off wheels 34 play a clamping role on the dredging pipe 6, so that the dredging pipe 6 will also rotate synchronously with the user rotating the handle 2. And because the pay-off wheel 34 is installed on the bottom plate 31, when the support rod 36 moves on the wavy guide platform 4, the bottom plate 31 performs a reciprocating lifting motion to drive the dredging pipe 6 to also perform a lifting motion synchronously. This design allows the user to not only drive the rotation of the dredging pipe 6 in the drain pipe while rotating the handle 2, but also drive the up and down movement of the dredging pipe 6 through the lifting of the bottom plate 31, forming a composite motion mode of rotation and lifting. This composite motion can enhance the cleaning ability of the dredging pipe 6 on the inner wall and blockages of the sunroof drain pipe of the car, improve the dredging efficiency and effect, and provide users with a more convenient and efficient sunroof drain pipe dredging solution.

[0033] Furthermore, a three-way pipe 51 is provided on the side of the connecting pipe 5, a first end of the three-way pipe 51 is connected to the connecting pipe 5, an air pump 52 is provided on the second end of the three-way pipe 51, and a liquid storage bottle 53 for storing detergent is provided on the third end of the three-way pipe 51.

[0034] Furthermore, a photoelectric switch 12 and a controller 13 are provided on the housing 1. The photoelectric switch 12 transmits a signal to the controller 13 after being triggered, and the controller 13 is used to control the air pump 52 to be turned on or off.

[0035] Furthermore, the photoelectric switch 12 is arranged through the shell 1, and one end thereof is located in the gap between the shell 1 and the rotating cylinder 3. The outer wall of the rotating cylinder 3 is provided with multiple sensing elements 37. When the sensing elements 37 rotate with the rotating cylinder 3 to the position of the photoelectric switch 12, the photoelectric switch 12 is triggered.

[0036] In a specific embodiment, Figures 8 to 9In the orientation shown, a three-way pipe 51 is also arranged on the side of the connecting pipe 5, the first end located on the left side of the three-way pipe 51 is connected to the connecting pipe 5, the second end located on the right side of the three-way pipe 51 is provided with an air pump 52, and the third end located below the three-way pipe 51 is provided with a liquid storage bottle 53 for storing detergent. A photoelectric switch 12 and a controller 13 are arranged on the housing 1. After the photoelectric switch 12 is triggered, a signal is transmitted to the controller 13, and the controller 13 is used to control the air pump 52 to turn on or off. The photoelectric switch 12 is arranged throughout the housing 1, and one end thereof is located in the gap between the housing 1 and the rotating cylinder 3, and a sensing unit is arranged on this end. Specifically, the sensing unit of the photoelectric switch 12 is an infrared transmitter and an infrared receiver. Two sensing elements 37 are arranged on the outer wall of the rotating cylinder 3. When the rotating cylinder 3 rotates with the handle 2, the sensing elements 37 rotate accordingly. When the sensing elements 37 rotate to the position where the sensing unit of the photoelectric switch 12 is located, the sensing elements 37 block the infrared signal emitted by the infrared transmitter. At this time, the photoelectric switch 12 triggers and transmits a signal to the controller 13. The controller 13 controls the air pump 52 to open and close once, that is, to open briefly and then quickly close. During the opening of the air pump 52, the air pump 52 conveys airflow to the connecting pipe 5 through the three-way pipe 51. When this airflow flows through the three-way pipe 51, due to the Venturi effect, the detergent in the liquid storage bottle 53 connected to the third end below the three-way valve will be sucked in and mixed together to form an airflow containing detergent. Subsequently, this airflow mixed with detergent is sent into the sunroof drain pipe of the car through the connecting pipe 5. The high-speed flow of air helps to break up and remove blockages in the skylight drain pipe, improving the cleaning effect; at the same time, the cleaner can also remove dirt and impurities attached to the inner wall of the skylight drain pipe, making the drain pipe smooth again, further ensuring the smooth flow of the drainage system.

[0037] Here, the two sensors 37 are provided so that the photoelectric switch 12 is triggered twice and the air pump 52 is opened and closed twice every time the rotating drum 3 rotates one circle. In other embodiments, more sensors 37 may be provided on the rotating drum 3 so that the air pump 52 is opened and closed more times every time the rotating drum 3 rotates one circle.

[0038] Furthermore, a spring 321 is provided on the guide column 32 , and the spring 321 abuts against the bottom plate 31 and the top inner wall of the rotating cylinder 3 at the same time. When the spring 321 is in a normal state, the distance between the bottom plate 31 and the top inner wall of the rotating cylinder 3 is the farthest.

[0039] Furthermore, a brush 61 is provided at the end of the dredging pipe 6 for cleaning the inside of the sunroof drain pipe of the car.

[0040] In a specific embodiment, Figures 3 to 5As shown, a spring 321 is also provided on the guide column 32, and the spring 321 is placed in the gap between the bottom plate 31 and the inner wall at the top of the rotating cylinder 3, and the spring 321 is in close contact with the bottom plate 31 and the inner wall at the top of the rotating cylinder 3. When the spring 321 is in a normal state without any force, the distance between the bottom plate 31 and the inner wall at the top of the rotating cylinder 3 reaches the maximum. This design ensures that no matter what kind of placement posture the shell 1 is in, the support rod 36 on the connecting seat 35 at the bottom of the bottom plate 31 can be tightly attached to the wave surface of the guide platform 4 through the continuous elastic force provided by the spring 321. When the rotating cylinder 3 rotates with the handle 2, the support rod 36 can stably move on the wave surface of the guide platform 4, thereby ensuring that the bottom plate 31 can perform reciprocating lifting and lowering motions and drive the dredging pipe 6 to rise and fall synchronously.

[0041] A brush 61 is also provided at one end of the dredging pipe 6 where it enters the skylight drain pipe. This design enables the brush 61 to be lifted and rotated synchronously when the dredging pipe 6 is rotating and lifting. As the dredging pipe 6 continues to penetrate deeper into the skylight drain pipe, the brush 61 is in close contact with the inner wall of the skylight drain pipe and scrubs it. At the same time, when used in conjunction with a detergent, the brush 61 can further promote the chemical reaction or physical dissolution between the detergent and the dirt, thereby accelerating the cleaning process. In addition, during the dredging operation, an air flow is delivered into the skylight drain pipe by the air pump 52. This air flow, in conjunction with the brush 61, not only helps to remove loose dirt, debris and other debris inside the skylight drain pipe, thereby reducing the risk of blockage, but also enhances the penetration of the detergent, thereby allowing the detergent to act more deeply on the inner wall of the skylight drain pipe. By means of the brush 61 provided at the end of the dredging pipe 6, combined with the chemical action of the detergent and the physical flushing of the air flow, the dredging device for the skylight drain pipe for automobile maintenance proposed in the present application can dredge the skylight drain pipe more comprehensively and efficiently.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sunroof drain pipe dredging device for car maintenance, comprising a housing (1) and a handle (2) rotatably mounted on the housing (1), characterized in that: Also includes: A rotating cylinder (3) is located in the housing (1) and connected to the handle (2); a plurality of guide posts (32) connected to the inner wall of the top of the rotating cylinder (3) are vertically arranged on the bottom plate (31) of the rotating cylinder (3); two pay-off wheels (34) connected to the motor (33) are also arranged on the bottom plate (31); the bottom plate (31) can move along the setting direction of the guide posts (32) to approach or move away from the inner wall of the top of the rotating cylinder (3); a connecting seat (35) is arranged at the bottom of the bottom plate (31); a supporting rod (36) is horizontally arranged on the connecting seat (35); A guide platform (4) is located below the connecting seat (35), and a surface of the guide platform (4) facing the connecting seat (35) is arranged in a wave shape, and the support rod (36) abuts against the guide platform (4); A connecting pipe (5), which is located below the housing (1) and is used to connect to a sunroof drain pipe of a car; A dredging pipe (6) is arranged through the shell (1), the dredging pipe (6) enters from the handle (2), passes through the pay-off wheel (34), the bottom plate (31), the connecting seat (35), the guide platform (4) in sequence, and finally enters the sunroof drain pipe of the car through the connecting pipe (5), and the dredging pipe (6) is clamped by the two pay-off wheels (34).

2. The sunroof drain pipe dredging device for car maintenance according to claim 1, characterized in that: A conductive slip ring (23) is provided at the connection between the handle (2) and the rotating cylinder (3), the conductive slip ring (23) comprising a stator and a rotor, the stator being provided on the top surface of the housing (1), and the handle (2) being fixedly connected to the rotor.

3. The sunroof drain pipe dredging device for car maintenance according to claim 2, characterized in that: A bearing (11) is arranged at the center of the top of the housing (1), the bearing (11) is located below the conductive slip ring (23), and the outer ring of the bearing (11) is fixed on the housing (1), and the inner ring of the bearing (11) is sleeved on the top of the rotating cylinder (3).

4. The sunroof drain pipe dredging device for automobile maintenance according to claim 2, characterized in that: The handle (2) is composed of a sleeve (21) and an anti-slip member (22) wrapping the sleeve (21); the rotor is fixed on the sleeve (21); and the bottom of the sleeve (21) is connected to the rotating cylinder (3).

5. The sunroof drain pipe dredging device for car maintenance according to claim 4, characterized in that: The surface of the anti-slip member (22) is vertically provided with a plurality of convex grooves.

6. The sunroof drain pipe dredging device for car maintenance according to claim 1, characterized in that: A three-way pipe (51) is arranged on the side of the connecting pipe (5); a first end of the three-way pipe (51) is connected to the connecting pipe (5); an air pump (52) is arranged on the second end of the three-way pipe (51); and a liquid storage bottle (53) for storing detergent is arranged on the third end of the three-way pipe (51).

7. The sunroof drain pipe dredging device for car maintenance according to claim 6, characterized in that: The housing (1) is provided with a photoelectric switch (12) and a controller (13). When the photoelectric switch (12) is triggered, it transmits a signal to the controller (13). The controller (13) is used to control the air pump (52) to be turned on or off.

8. The sunroof drain pipe dredging device for car maintenance according to claim 7, characterized in that: The photoelectric switch (12) is arranged to penetrate the shell (1), and one end of the photoelectric switch (12) is located in the gap between the shell (1) and the rotating cylinder (3). The outer wall of the rotating cylinder (3) is provided with a plurality of sensing elements. When the sensing elements rotate with the rotating cylinder (3) to the position of the photoelectric switch (12), the photoelectric switch (12) is triggered.

9. The sunroof drain pipe dredging device for car maintenance according to claim 1, characterized in that: A spring (321) is provided on the guide column (32), and the spring (321) is in contact with the bottom plate (31) and the top inner wall of the rotating cylinder (3) at the same time. When the spring (321) is in a normal state, the distance between the bottom plate (31) and the top inner wall of the rotating cylinder (3) is the farthest.

10. The sunroof drain pipe dredging device for car maintenance according to claim 1, characterized in that: The end of the dredging pipe (6) is provided with a brush (61) for cleaning the inside of the sunroof drain pipe of the car.

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