A central air conditioning pipeline cleaning robot

Abstract

The utility model discloses a central air conditioning pipeline cleaning robot belongs to pipeline cleaning technical field, and this device includes the box cover mechanism, the cleaning mechanism, drive mechanism and support mechanism. Among them, the box cover mechanism includes first box body and second box body to the cover plate of connecting first box body and second box body, is equipped with the cleaning mechanism on the cover plate, is equipped with drive mechanism on first box body and second box body, and first box body and second box body all are equipped with support foot in, and support foot can be telescopic activity in first box body and second box body. The utility model's advantage lies in: the support foot in first box body and second box body can be through the mode of alternating support in the inner wall of central air conditioning pipeline, the drive of auxiliary drive mechanism, and then guarantee its climbing ability in the pipeline with gradient.

Description

Technical Field

[0001] This utility model relates to the field of pipeline cleaning technology, specifically to a central air conditioning pipeline cleaning robot. Background Technology

[0002] During long-term operation, central air conditioning systems tend to accumulate a large amount of dust and impurities inside the pipes, which can affect the heat exchange efficiency and operational stability of the equipment. Therefore, regular cleaning and maintenance of the pipes are necessary. Traditional pipe cleaning mainly relies on manual operation. However, the internal space of central air conditioning pipes is confined and the environment is complex. Manual cleaning is not only labor-intensive but also suffers from incomplete cleaning and low efficiency. With the development of automation technology, pipe cleaning robots are gradually replacing manual labor and have become the main equipment for cleaning central air conditioning pipes.

[0003] However, existing central air conditioning duct cleaning robots still have significant shortcomings in practical applications. When the robot moves inside the duct, its drive wheels easily pick up dust and impurities from the duct, resulting in reduced adhesion to the duct wall. It struggles to handle ducts with inclines or slopes, easily encountering problems such as difficulty in movement and positional deviation. This not only affects the continuity and thoroughness of the cleaning operation but also reduces overall cleaning efficiency, causing numerous inconveniences to central air conditioning duct cleaning work. Utility Model Content

[0004] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a central air conditioning duct cleaning robot, which solves the problem that the existing technology suffers from reduced wheel adhesion due to dust accumulation inside the duct, making it difficult to handle cleaning needs in sloping duct scenarios.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a central air conditioning duct cleaning robot, comprising: a cover mechanism, the cover mechanism including a first box and a second box, and a cover plate connecting the first box and the second box; a cleaning mechanism disposed on the cover plate; a driving mechanism disposed on the first box and the second box; and a support mechanism, the support mechanism having support legs that can extend and retract within the first box and the second box.

[0006] Optionally, the cover plate is fixed to the first box body, and the second box body is fixed with a first slide rail and slidably connected to the first box body through the first slide rail. Both the first box body and the second box body are fixed with a bottom plate, and the two bottom plates are connected by a second slide rail.

[0007] Optionally, the cleaning mechanism includes a first cleaning part and a second cleaning part disposed on the cover plate, wherein the first cleaning part is located on the front side of the cover plate and the second cleaning part is located on both sides of the cover plate.

[0008] Optionally, the first cleaning part includes a first cleaning roller, which is fixed on the output shaft of a first motor. The first motor is covered with a first housing, and both the first motor and the first housing are fixed on a cover plate.

[0009] Optionally, the second cleaning part includes a second cleaning roller perpendicular to the ground, a second motor is fixed on the cover plate, the second motor and the second cleaning roller are connected by a universal joint, the second motor is covered with a second outer shell, and the second outer shell and the support shell of the universal joint are both fixed on the cover plate.

[0010] Optionally, the drive mechanism includes a first chassis and a second chassis respectively fixed on the two base plates. Both the first chassis and the second chassis are provided with a plurality of rollers. The first chassis and the second chassis are connected by a damper. A cylinder is fixed on the second chassis, and the output shaft of the cylinder is connected to the first chassis.

[0011] Optionally, the roller is a Mecanum roller.

[0012] Optionally, the support mechanism further includes a third motor fixed in the first housing and the second housing. The first housing and the second housing are also rotatably connected to a positive and negative lead screw. The positive and negative lead screw and the third motor are connected through a worm gear box. The support foot is threaded to the positive and negative lead screw.

[0013] Optionally, a plurality of guide rods are also fixed inside the first box and the second box, and the support feet are slidably connected to the guide rods.

[0014] Optionally, two shaftless fans are also fixed to the top of the cover plate on the side away from the first cleaning section.

[0015] The beneficial effects of this utility model are as follows: This invention comprises a first housing and a second housing, each connected to a drive mechanism and connected by a cover plate, allowing them to change their relative positions. Support feet are located within both housings, extending and retracting stably under drive to securely abut against the inner wall of the central air conditioning duct. This alternating contact of the support feet, combined with the drive mechanism, creates a climbing-like motion, effectively overcoming existing problems such as decreased adhesion, difficulty in movement, and positional deviation that easily occur with existing equipment on inclined and vertical sloping ducts. This ensures the equipment can stably adapt to cleaning ducts on inclined and even vertical slopes, significantly expanding its applicable scenarios and improving its adaptability to ductwork under different operating conditions.

[0016] Meanwhile, this invention connects the output shaft of the third motor and the forward and reverse lead screws via a worm gear box. The worm gear transmission precisely converts the output force of the third motor into the rotational force of the forward and reverse lead screws, thereby smoothly driving the threaded support feet to perform controllable movements of approaching or separating. This transmission structure not only ensures the accuracy and reliability of the support feet's extension and retraction movements but also effectively controls the contact force between the support feet and the inner wall of the pipe, ensuring the stability and safety of the contact and climbing process, and further guaranteeing the continuity and stability of the cleaning operation.

[0017] In addition, this utility model is equipped with a shaftless fan, which quickly generates a stable negative pressure environment in the pipeline. This not only efficiently guides the dust swept down by the cleaning mechanism to flow in a specific direction, preventing the dust from drifting randomly in the pipeline and causing secondary pollution, but also accelerates the dust discharge efficiency and significantly improves the overall cleaning speed. Attached Figure Description

[0018] 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.

[0019] Figure 1 This utility model relates to a three-dimensional structure of a central air conditioning duct cleaning robot. Figure 1 .

[0020] Figure 2 This utility model relates to a three-dimensional structure of a central air conditioning duct cleaning robot. Figure 2 .

[0021] Figure 3 This is a partial exploded three-dimensional view of a central air conditioning duct cleaning robot according to the present invention.

[0022] Figure 4 This is an exploded view of the first cleaning section of a central air conditioning duct cleaning robot according to this utility model.

[0023] Figure 5 This is a perspective view of the second cleaning unit of a central air conditioning duct cleaning robot according to the present invention.

[0024] Figure 6 This utility model relates to a central air conditioning duct cleaning robot. Figure 3 Enlarged view of point A in the middle.

[0025] Figure 7 This is a perspective view of the support mechanism of a central air conditioning duct cleaning robot according to the present invention.

[0026] Figure 8 This is an exploded view of the support mechanism of a central air conditioning duct cleaning robot according to the present invention.

[0027] Explanation of reference numerals in the attached figures: 1. Cleaning mechanism; 11. First cleaning section; 111. First cleaning roller; 112. First motor; 113. First outer casing; 12. Second cleaning section; 121. Second cleaning roller; 122. Second motor; 123. Second outer casing; 124. Universal joint; 2. Drive mechanism; 21. First chassis; 22. Second chassis; 23. Damper; 24. Roller; 25. Cylinder; 3. Cover mechanism; 31. First housing; 32. Second housing; 33. Cover plate; 34. Base plate; 4. Shaftless fan; 5. Support mechanism; 51. Support foot; 52. Third motor; 53. Worm gearbox; 54. Lead screw; 55. Guide rod. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] As mentioned earlier, existing central air conditioning duct cleaning robots still have significant shortcomings in practical applications. When the robot moves inside the duct, its drive wheels easily pick up dust and impurities from the duct, reducing adhesion to the duct wall. It struggles to handle ducts with inclines, often experiencing difficulties in movement and positional deviations. This not only affects the continuity and thoroughness of the cleaning operation but also reduces overall cleaning efficiency, causing numerous inconveniences to central air conditioning duct cleaning work.

[0030] To address this issue, this utility model provides a cleaning robot for cleaning central air conditioning ducts. By employing a mode that primarily uses contact force and secondarily uses roller friction, the robot can achieve a climbing-like effect when encountering sloping or vertical ducts, thus solving the problem of insufficient travel force. This utility model solves the problem in the following way.

[0031] Example 1: Please refer to the accompanying drawings in the instruction manual. As shown in the figures, this embodiment provides a central air conditioning duct cleaning robot, which includes the following: Figure 1 or Figure 2 The cleaning mechanism 1, drive mechanism 2, box cover mechanism 3, and support mechanism 5 are shown.

[0032] Among them, such as Figure 3 As shown, the lid mechanism 3 includes a first box body 31 and a second box body 32. A cover plate 33 is fixed to the top of the first box body 31, and a first slide rail is fixed to the top of the second box body 32. The first slide rail is slidably disposed within the cover plate 33. Simultaneously, a base plate 34 is fixed to the bottom of both the first box body 31 and the second box body 32. A second slide rail is fixed to the base plate 34 fixed to the first box body 31, and a groove for accommodating the second slide rail is formed between the base plate 34 fixed to the second box body 32 and the second box body 32. The second slide rail is slidably disposed within this groove. This allows relative movement between the first box body 31 and the second box body 32.

[0033] like Figures 1 to 2 , Figures 4 to 5 As shown, in this embodiment, the cleaning mechanism 1 includes a first cleaning part 11 and a second cleaning part 12 disposed on the cover plate 33. The first cleaning part 11 is located on the front side of the cover plate 33, and the second cleaning part 12 is located on both sides of the cover plate 33. The first cleaning part 11 includes a first cleaning roller 111 (the first cleaning roller 111 includes a roller body and a roller disc with bristles fixed on the roller body). The first cleaning roller 111 is fixed on the output shaft of the first motor 112. The first motor 112 is fitted with a first outer shell 113. Both the first motor 112 and the first outer shell 113 are fixed on the cover plate 33. The second cleaning unit 12 includes a second cleaning roller 121 perpendicular to the ground (the second cleaning roller 121 also includes a roller body and a roller disc with bristles fixed on the roller body). A second motor 122 is fixed on the cover plate 33. The second motor 122 and the second cleaning roller 121 are connected by a universal joint 124. The second motor 122 is covered by a second outer shell 123. The second outer shell 123 and the support shell of the universal joint 124 are both fixed on the cover plate 33. In use, driving the first cleaning unit 11 will clean the upper, lower and sides of the pipe during the movement of this device (depending on the length of the first cleaning roller 111 and its bristles).

[0034] like Figure 3 , Figure 6 As shown in this embodiment, the drive mechanism 2 includes a first chassis 21 and a second chassis 22 respectively fixed on two base plates 34. Both the first chassis 21 and the second chassis 22 are equipped with rollers 24 via drive sources (such as an engine, motor, or drive motor), and each roller 24 has its own drive source, allowing each roller 24 to rotate independently. All rollers 24 are Mecanum wheels. A unified control module provides unified control over these drive sources, enabling the equipment body to move forward or backward, translate left or right, and turn within the central air conditioning duct. Since the control module and Mecanum wheels are existing technologies, their technical principles will not be elaborated here.

[0035] Meanwhile, the first chassis 21 and the second chassis 22 are connected by two dampers 23. A cylinder 25 is fixed on the second chassis 22, and the output shaft of the cylinder 25 is connected to the first chassis 21. Therefore, in use, by keeping the first chassis 21 and its components stationary and driving the cylinder 25 to extend or retract, the second chassis 22 and its components can be moved in a translational motion, which is then reset or buffered by the dampers 23. Conversely, by keeping the second chassis 22 and its components stationary and driving the cylinder 25 to extend or retract, the first chassis 21 and its components can be moved in a translational motion. These two actions alternate, thus achieving alternating displacement motion.

[0036] like Figures 1 to 2 As shown, in this embodiment, both sides of the first box 31 and the second box 32 are slidably connected with support feet 51. The support feet 51 are driven by support mechanisms 5 respectively set in the first box 31 and the second box 32, thereby realizing the telescopic movement relative to the first box 31 and the second box 32.

[0037] Therefore, in the specific implementation of this embodiment, when the equipment encounters a sloping or vertical pipe, the support leg 51 inside the first housing 31 is first driven to extend until the end face of the support leg 51 is tightly abutted against the inner wall of the pipe, at which point the first chassis 21, the first housing 31, and their components are fixed. At this time, the drive cylinder 25 extends and retracts, which can drive the second chassis 22, the second housing 32, and their components to approach the first chassis 21 and the first housing 31. The damper 23 retracts at this time, and the roller 24 rotates to provide auxiliary power.

[0038] When the second chassis 22 and the second housing 32 move to their closest point to the first chassis 21 and the second housing 32, the operation is reversed. The support foot 51 inside the second housing 32 abuts against the inner wall of the pipe, while the support foot 51 inside the first housing 31 is reset, and the cylinder 25 is simultaneously extended and retracted. At this point, the first chassis 21 and the first housing 31 lose their contact force and, under the reset force of the damper 23 and the extension and retraction force of the cylinder 25, move synchronously to the left away from the second chassis 22 and the second housing 32, with auxiliary power provided by the rotation of the roller 24. This cycle repeats, ultimately achieving the climbing motion of the equipment. Because this movement uses contact force instead of friction between the roller 24 and the pipe, it has greater stability and can handle cleaning of sloping pipes and even vertical pipes.

[0039] Example 2: Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides an embodiment two. For example... Figures 7 to 8As shown, in this second embodiment, the support mechanism 5 also includes a third motor 52 fixed inside the first housing 31 and the second housing 32. A lead screw seat is rotatably connected inside the first housing 31 and the second housing 32, and a forward and reverse lead screw 54 is rotatably connected to the upper left of the lead screw. At the same time, a worm gear box 53 is also fixed inside the first housing 31 and the second housing 32, which contains meshing worm gears. One end of the worm gear is connected to the output shaft of the third motor 52, and the worm wheel is fixed to the forward and reverse lead screw 54. Therefore, when the output shaft of the third motor 52 is energized, the worm gear box 53 transfers its driving force to the forward and reverse lead screw 54, causing the forward and reverse lead screw 54 to rotate.

[0040] The lead screw 54 has threaded grooves with opposite helical lines extending along its shaft and to both sides. A support foot 51 is rotatably connected to each of these two threaded grooves. Therefore, when the lead screw 54 rotates, the two support feet 51 move simultaneously towards or away from each other, thereby achieving a telescoping action relative to the first housing 31 or the second housing 32. Multiple guide rods 55 are fixed inside the first housing 31 and the second housing 32 via rod seats, and the support feet 51 are slidably connected to these guide rods 55 to improve their sliding stability.

[0041] Example 3: Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides Embodiment Three. For example... Figure 1 or Figure 2 As shown, in this third embodiment, two shaftless fans 4 are fixed on the side of the top of the cover plate 33 away from the first cleaning section 11. The shaftless fans 4 have shaftless blades. When energized, the rotation of the shaftless blades of the shaftless fans 4 drives the airflow on both sides, thereby generating negative pressure, which in turn transfers the dust swept down by the cleaning mechanism 1 under negative pressure. At this time, connecting a collection pipe or collection bag to the negative pressure outlet of the shaftless fans 4 can effectively clean the dust.

[0042] Therefore, in summary, compared with the prior art, this utility model and its embodiments have the following advantages, including but not limited to: This utility model comprises a first housing 31 and a second housing 32, which are respectively connected to a drive mechanism 2 and connected by a cover plate 33, allowing the first housing 31 and the second housing 32 to change their relative positions. Simultaneously, the first housing 31 and the second housing 32 are equipped with support feet 51, which are driven to extend and retract stably, thus tightly abutting against the inner wall of the central air conditioning duct. Through the alternating abutment of the support feet 51 on the first housing 31 and the second housing 32, in conjunction with the drive mechanism 2, a climbing-like movement mode is formed, effectively overcoming the problems of decreased adhesion, difficulty in movement, and positional deviation that easily occur in existing equipment on inclined and vertical slopes. This ensures that the equipment can stably adapt to cleaning work on inclined and even vertical slopes, significantly expanding the applicable scenarios of the equipment and improving its adaptability to pipelines under different working conditions.

[0043] Meanwhile, this invention connects the output shaft of the third motor 52 and the forward and reverse lead screws 54 via a worm gear box 53. The worm gear transmission precisely converts the output force of the third motor 52 into the rotational force of the forward and reverse lead screws 54, thereby smoothly driving the threaded support foot 51 to perform controllable movements of approaching or separating. This transmission structure not only ensures the accuracy and reliability of the extension and retraction of the support foot 51, but also effectively controls the contact force between the support foot 51 and the inner wall of the pipe, ensuring the stability and safety of the contact and climbing process, and further guaranteeing the continuity and stability of the cleaning operation.

[0044] In addition, this utility model is equipped with a shaftless fan 4, which quickly generates a stable negative pressure environment in the pipeline. This not only efficiently guides the dust swept down by the cleaning mechanism 1 to flow in a specific direction, preventing the dust from drifting randomly in the pipeline and causing secondary pollution, but also accelerates the dust discharge efficiency and significantly improves the overall cleaning rate.

[0045] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A central air conditioning duct cleaning robot, characterized in that, include: The box cover mechanism (3) includes a first box body (31) and a second box body (32), and a cover plate (33) connecting the first box body (31) and the second box body (32); A cleaning mechanism (1) is provided on the cover plate (33); A drive mechanism (2) is provided on the first housing (31) and the second housing (32); The support mechanism (5) is provided with support feet (51) that can extend and retract within the first housing (31) and the second housing (32).

2. The central air conditioning duct cleaning robot as described in claim 1, characterized in that, The cover plate (33) is fixed on the first box (31), and the second box (32) is fixed with a first slide rail and is slidably connected to the first box (31) through the first slide rail. Both the first box (31) and the second box (32) are fixed with a bottom plate (34), and the two bottom plates (34) are connected by a second slide rail.

3. The central air conditioning duct cleaning robot as described in claim 1, characterized in that, The cleaning mechanism (1) includes a first cleaning part (11) and a second cleaning part (12) disposed on the cover plate (33). The first cleaning part (11) is located on the front side of the cover plate (33), and the second cleaning part (12) is located on both sides of the cover plate (33).

4. A central air conditioning duct cleaning robot as described in claim 3, characterized in that, The first cleaning part (11) includes a first cleaning roller (111), which is fixed on the output shaft of a first motor (112). The first motor (112) is covered with a first outer shell (113), and both the first motor (112) and the first outer shell (113) are fixed on the cover plate (33).

5. A central air conditioning duct cleaning robot as described in claim 3, characterized in that, The second cleaning unit (12) includes a second cleaning roller (121) perpendicular to the ground. A second motor (122) is fixed on the cover plate (33). The second motor (122) and the second cleaning roller (121) are connected by a universal joint (124). The second motor (122) is covered with a second outer shell (123). The second outer shell (123) and the support shell of the universal joint (124) are both fixed on the cover plate (33).

6. A central air conditioning duct cleaning robot as described in claim 2, characterized in that, The drive mechanism (2) includes a first chassis (21) and a second chassis (22) respectively fixed on the two base plates (34). Both the first chassis (21) and the second chassis (22) are provided with a plurality of rollers (24). The first chassis (21) and the second chassis (22) are connected by a damper (23). A cylinder (25) is fixed on the second chassis (22). The output shaft of the cylinder (25) is connected to the first chassis (21).

7. A central air conditioning duct cleaning robot as described in claim 6, characterized in that, The roller (24) is a Mecanum roller.

8. A central air conditioning duct cleaning robot as described in claim 2, characterized in that, The support mechanism (5) further includes a third motor (52) fixed in the first housing (31) and the second housing (32). The first housing (31) and the second housing (32) are also rotatably connected to a positive and negative lead screw (54). The positive and negative lead screw (54) and the third motor (52) are connected through a worm gear box (53). The support foot (51) is threaded onto the positive and negative lead screw (54).

9. A central air conditioning duct cleaning robot as described in claim 8, characterized in that, Several guide rods (55) are fixed inside the first box (31) and the second box (32), and the support foot (51) is slidably connected to the guide rods (55).

10. A central air conditioning duct cleaning robot as described in claim 3, characterized in that, Two shaftless fans (4) are also fixed on the top side of the cover plate (33) away from the first cleaning part (11).

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