Cleaning and disinfecting device for central air conditioner pipeline

Abstract

The invention relates to the technical field of air conditioner pipeline cleaning, and discloses a central air conditioner pipeline cleaning and disinfecting device which comprises a first fixing table and a second fixing table which are arranged in parallel, walking wheels are arranged on the side edge of the first fixing table, and the central air conditioner pipeline cleaning and disinfecting device further comprises a cleaning mechanism and a guide mechanism; the guide mechanism comprises fixing plates arranged on the side edge of the first fixing table, the two fixing plates are arranged on the two sides, in the walking direction of the device, of the first fixing table correspondingly, sliding rods are slidably connected to the middles of the fixing plates, and top wheels are arranged on the sides, away from the first fixing table, of the sliding rods; a reversing driving assembly for driving the four sliding rods to slide along the fixing plate is arranged in the middle of the first fixing table, and every two adjacent sliding rods synchronously and reversely move. The four top wheels are driven by the reversing driving assembly to stretch out and draw back at the same time, so that the first fixing table can achieve the steering effect.

Description

Technical Field

[0001] The invention relates to the technical field of air-conditioning pipeline cleaning, in particular to a central air-conditioning pipeline cleaning and disinfecting device. Background Art

[0002] During long-term use of central air conditioners, a lot of dust will accumulate in the pipes. Due to the narrow space of the pipes, it is not convenient for people to enter and clean them. During the air supply process, the accumulated dust will enter the room with the air and reduce the cleanliness of the air. Therefore, the pipes need to be cleaned.

[0003] Some existing air-conditioning duct cleaning devices use a mobile cart with a camera installed on it. During operation, the walking trajectory of the cart needs to be adjusted according to the camera, which results in the operator needing to continuously operate the walking trajectory of the cart during the entire working process. The operation is rather cumbersome, and therefore needs to be improved. Summary of the invention

[0004] The present invention provides a central air-conditioning pipeline cleaning and disinfecting device, which solves the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A central air conditioning pipe cleaning and disinfection device includes two parallel first and second fixed platforms, the side of the first fixed platform is provided with walking wheels, and also includes a cleaning mechanism and a guiding mechanism; the cleaning mechanism includes an L-shaped support frame provided at the end of the second fixed platform, and the L-shaped support frame is provided with rotating brush discs on the front and two sides along the walking direction of the device; the guiding mechanism includes a fixed plate provided at the side of the first fixed platform, the first fixed platform is provided with two fixed plates on both sides along the walking direction of the device, the middle of the fixed plate is slidably connected to a sliding rod, and a top wheel is provided on the side of the sliding rod away from the first fixed platform, and a reversing drive assembly for driving four sliding rods to slide along the fixed plate is provided in the middle of the first fixed platform, and two adjacent sliding rods move synchronously in opposite directions. The sliding rod is slidably connected to a sliding sleeve on the side away from the first fixed platform, and the end of the sliding sleeve is connected to the top wheel, and a spring cooperating with the sliding rod is provided inside the sliding sleeve.

[0007] As a preferred technical solution of the present invention, the reversing drive assembly includes a main shaft rotatably connected to the middle of the first fixed platform, the main shaft is fixedly connected to the center of the rotating frame, a rotating shaft is arranged at the corner of the rotating frame, the rotating shaft is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to an end of the sliding rod close to the center of the first fixed platform. A suspension column is arranged on the second fixed platform, the suspension column is rotatably connected to a reversing cylinder, the piston rod of the reversing cylinder is rotatably connected to one end of the deflection plate, and the other end of the deflection plate is fixedly connected to the main shaft.

[0008] As a preferred technical solution of the present invention, an installation frame is provided at the end of the second fixed platform, and a support shaft is fixedly connected to the end of the installation frame, and the support shaft is rotatably connected to the L-shaped support frame. A rotating drive component for adjusting the angle of the L-shaped support frame is provided in the middle of the second fixed platform, and a synchronous drive component for driving three rotating brush discs to rotate is provided on the side of the L-shaped support frame away from the second fixed platform.

[0009] As a preferred technical solution of the present invention, both sides of the support shaft are rotatably connected to L-shaped support frames arranged parallel to each other, and the synchronous drive assembly includes two support plates arranged in parallel and fixedly connected to the L-shaped support frames, the middle of the support plate is rotatably connected to a first rotating rod arranged parallel to the walking direction of the device, the end of the first rotating rod away from the second fixed platform is fixedly connected to the rotating brush plate, the side of the L-shaped support frame away from the second fixed platform is rotatably connected to a second rotating rod arranged perpendicular to the first rotating rod, and the end of the second rotating rod away from the first rotating rod is fixedly connected to the rotating brush plate, an active bevel gear is arranged in the middle of the first rotating rod, and driven bevel gears fixedly connected to the second rotating rod are meshed and connected on both sides of the active bevel gear, a driving motor is arranged on the support plate, and the output shaft of the driving motor is fixedly connected to the first rotating rod.

[0010] As a preferred technical solution of the present invention, the rotary drive assembly includes a slide groove arranged on the second fixed platform, the slide groove is slidably connected to a push plate, the push plate is rotationally connected to one end of a push rod on one side away from the center of the second fixed platform, the other end of the push rod is rotationally connected to the middle part of the fixed rod, the end of the fixed rod is fixedly connected to one end of an L-shaped support frame close to the second fixed platform, and a rotary cylinder is arranged on the second fixed platform, and the piston rod of the rotary cylinder is fixedly connected to the push plate.

[0011] The present invention has the following benefits:

[0012] The reversing drive assembly drives the four top wheels to extend and retract simultaneously, so that the first fixed platform can achieve a turning effect. The entire reversing operation is relatively simple, and during the movement, the top wheels can keep the first fixed platform in the middle of the pipeline. Therefore, the operator does not need to continuously control the walking trajectory of the device, reducing the difficulty of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, 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 work.

[0014] Figure 1 The figure is a structural schematic diagram of a central air conditioning pipeline cleaning and disinfection device.

[0015] Figure 2 The present invention is a front view of a central air conditioning pipeline cleaning and disinfecting device.

[0016] Figure 3 The figure is a schematic diagram of the structure of a guide mechanism in a central air-conditioning pipe cleaning and disinfection device.

[0017] Figure 4 The figure is a schematic diagram of the structure of a reversing drive assembly in a central air-conditioning pipe cleaning and disinfection device.

[0018] Figure 5 The present invention is a structural schematic diagram of a first fixed platform in a central air-conditioning pipeline cleaning and disinfection device.

[0019] Figure 6 The diagram is a structural diagram of the direction reversal of a rotating frame in a central air-conditioning pipe cleaning and disinfection device.

[0020] Figure 7 The figure is a schematic diagram of the structure of a cleaning mechanism in a central air conditioning pipe cleaning and disinfection device.

[0021] Figure 8 The figure is a top view of a cleaning mechanism in a central air conditioning pipe cleaning and disinfecting device.

[0022] Fig. 9 The figure is a schematic diagram of the structure of a synchronous drive component in a central air-conditioning pipe cleaning and disinfection device.

[0023] In the figure: 1. first fixed platform; 2. second fixed platform; 3. cleaning mechanism; 4. guiding mechanism; 5. top wheel; 6. sliding sleeve; 7. sliding rod; 8. fixed plate; 9. connecting rod; 10. rotating shaft; 11. rotating frame; 12. main shaft; 13. deflection plate; 14. reversing cylinder; 15. hanging column; 16. reversing drive assembly; 17. fixed block; 18. walking wheel; 19. mounting frame; 20. bristles; 21. rotating cylinder; 22. push plate; 23. push rod; 24. slide groove; 25. fixed rod; 26. rotating drive assembly; 27. supporting shaft; 28. L-shaped supporting frame; 29. ​​rotating brush disc; 30. synchronous drive assembly; 31. second rotating rod; 32. supporting plate; 33. driving motor; 34. first rotating rod; 35. active bevel gear; 36. driven bevel gear. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In one embodiment, see Figure 1-Figure 9 A central air conditioning pipeline cleaning and disinfection device comprises two parallel first fixing platforms 1 and second fixing platforms 2. The first fixing platform 1 and the second fixing platform 2 have the same size. The second fixing platform 2 is located directly above the first fixing platform 1 and is arranged at four corners of the first fixing platform 1 and the second fixing platform 2 through four supporting fixing columns, so that the first fixing platform 1 and the second fixing platform 2 are fixed. The subsequent position description is as follows: Figure 2 In the direction, fixed blocks 17 are arranged on both sides of the left and right sides of the front and rear sides of the first fixed platform 1, and the fixed blocks 17 are rotatably connected to the running wheels 18, and the first fixed platform 1 is supported by the running wheels 18, and a power driving device is arranged inside the running wheels 18, so that the first fixed platform 1 moves left and right, and also includes a cleaning mechanism 3 and a guide mechanism 4;

[0026] The cleaning mechanism 3 includes an L-shaped support frame 28 arranged on the left end of the upper surface of the second fixed platform 2, and the L-shaped support frame 28 is provided with a rotating brush disc 29 on the front and two sides along the walking direction of the device, that is, a rotating brush disc 29 is provided at the left end of the L-shaped support frame 28 and the front and rear sides of the L-shaped support frame 28, and the axis of the rotating brush disc 29 is arranged horizontally, and bristles 20 are arranged on the outer side of the rotating brush disc 29, and the length of the bristles 20 is relatively long, so when the rotating brush disc 29 moves, the bristles 20 are always in contact with the inner wall of the pipe, so the bristles 20 on the rotating brush disc 29 at the left end can clean the top and bottom of the ventilation duct, and the bristles 20 on the front and rear two rotating brush discs 29 can clean the front and rear inner walls of the ventilation duct, and a dust suction device and a disinfectant spraying device can also be arranged on the second fixed platform 2, and the dust suction device can timely remove the dust swept by the rotating brush disc 29, and the spraying of the disinfectant can achieve disinfection, thereby completing the cleaning and disinfection of the interior of the air-conditioning duct;

[0027] The guide mechanism 4 includes a fixing plate 8 arranged on the side of the first fixing platform 1, the fixing plate 8 is vertically arranged on the left and right sides of the front and rear sides of the first fixing platform 1, and the upper end of the fixing plate 8 is fixedly connected to the side of the second fixing platform 2, and a sliding rod 7 arranged in a front-to-back direction is slidably connected in the middle of the fixing plate 8, and a sliding sleeve 6 is slidably connected at one end of the sliding rod 7 away from the first fixing platform 1, and a top wheel 5 is arranged at the end of the sliding sleeve 6, and a spring is arranged inside the sliding sleeve 6. When the top wheels 5 on the front and rear sides are pressed against the inner wall of the air-conditioning duct at the same time, the spring will be slightly compressed, so that the front and rear springs can be used to move the air-conditioning duct. The setting realizes the automatic centering effect of the first fixed platform 1. A reversing drive assembly 16 for driving four sliding rods 7 to slide along the fixed plate 8 is provided in the middle of the first fixed platform 1. Two adjacent sliding rods 7 move synchronously in opposite directions. That is to say, when the sliding rod 7 on the left side of the front side extends, the sliding rod 7 on the right side of the front side contracts, and at the same time, the sliding rod 7 on the left side of the rear side contracts, and the sliding rod 7 on the right side of the rear side extends; when the sliding rod 7 on the left side of the front side contracts, the sliding rod 7 on the right side of the front side extends, and at the same time, the sliding rod 7 on the left side of the rear side extends, and the sliding rod 7 on the right side of the rear side contracts.

[0028] In one case of the present embodiment, the reversing drive assembly 16 includes a main shaft 12 rotatably connected to the middle part of the first fixed platform 1. The main shaft 12 is vertically arranged in the middle part of the upper surface of the first fixed platform 1, and the upper end of the main shaft 12 is rotatably connected to the middle part of the lower surface of the second fixed platform 2. The central part of the rotating frame 11 is fixedly connected below the main shaft 12. The rotating frame 11 is a rectangular structure. In order to reduce the weight, a plurality of through holes can be provided on the rotating frame 11. A rotating shaft 10 is vertically provided at the four corners of the upper surface of the rotating frame 11. The rotating shaft 10 is rotatably connected to one end of the connecting rod 9, and the other end of the connecting rod 9 is rotatably connected to an end of the sliding rod 7 close to the center of the first fixed platform 1. Therefore, from a top view, when the rotating frame 11 rotates forward or reversely, the rotating frame 11 will pull the four sliding rods 7 to extend or retract synchronously through the connecting rod 9. In addition, the front end of the deflection plate 13 is fixedly connected to the rear side of the main shaft 12, and a suspension column 15 is arranged on the right side of the lower surface of the second fixed platform 2. The suspension column 15 is rotatably connected to the right side of the reversing cylinder 14. The piston rod of the reversing cylinder 14 extends to the left, and the piston rod of the reversing cylinder 14 is rotatably connected to the rear end of the deflection plate 13, so that the main shaft 12 can be driven to rotate by extending or contracting the piston rod of the reversing cylinder 14.

[0029] In one case of the present embodiment, a mounting frame 19 is provided at the end of the second fixed platform 2. The mounting frame 19 is a U-shaped structure with an opening upward. The mounting frame 19 is fixed to the middle left side of the upper surface of the second fixed platform 2. A support shaft 27 arranged in a front-rear direction is fixedly connected to the upper end of the mounting frame 19. Both the front and rear sides of the support shaft 27 are rotatably connected to the right side of the L-shaped support frame 28 arranged parallel to each other. A rotating drive assembly 26 is provided in the middle of the upper surface of the second fixed platform 2. The rotating drive assembly 26 can drive the L-shaped support frame 28 to rotate around the support shaft 27 to achieve the effect of adjusting the angle of the L-shaped support frame 28. Therefore, when the device encounters an obstacle, the L-shaped support frame 28 can be rotated clockwise to lift the left end of the L-shaped support frame 28 to achieve the effect of avoiding obstacles. In addition, a synchronous drive assembly 30 is provided on the left side of the L-shaped support frame 28. The synchronous drive assembly 30 can simultaneously drive the three rotating brush discs 29 to rotate.

[0030] In one case of the present embodiment, the L-shaped support frame 28 includes a horizontal plate arranged at the top and an inclined plate arranged at the right side, the middle part of the inclined plate of the L-shaped support frame 28 is rotatably connected to the support shaft 27, and the synchronous drive assembly 30 includes support plates 32 fixedly connected to the left and right ends of the horizontal plate above the L-shaped support frame 28, the two support plates 32 are arranged in a front-to-back direction, and the middle parts of the two support plates 32 are rotatably connected to a first rotating rod 34 arranged in a left-to-right direction, and a rotating brush plate 29 is fixedly connected to the left end of the first rotating rod 34, and at the same time, a second rotating rod 31 arranged in a front-to-back direction is rotatably connected to the left position of the L-shaped support frame 28, and the end of the second rotating rod 31 away from the first rotating rod 34 is also fixedly connected to the rotating brush plate 29, and a driving motor 33 is arranged on the right support plate 32, the output shaft of the driving motor 33 is fixedly connected to the right end of the first rotating rod 34, and a driving bevel gear 35 is arranged on the left side of the first rotating rod 34, and the front and rear sides of the driving bevel gear 35 are meshedly connected with a driven bevel gear 36, and the driven bevel gear 36 is fixedly connected to an end of the second rotating rod 31 close to the first rotating rod 34, so that the driving motor 33 can drive the first rotating rod 34 to rotate, and the first rotating rod 34 realizes the cooperation with the second rotating rod 31 through the meshing connection of the driving bevel gear 35 and the driven bevel gear 36, so that the first rotating rod 34 and the second rotating rod 31 can simultaneously drive the three rotating brush plates 29 to rotate.

[0031] In one case of the present embodiment, the rotary drive assembly 26 includes a slide groove 24 arranged on the second fixed platform 2, and the slide groove 24 is arranged in the middle of the upper surface of the second fixed platform 2 in a left-right direction. The slide groove 24 is slidably connected to the lower end of the push plate 22, and the left side of the push plate 22 is rotationally connected to the right end of the push rod 23, and the left end of the push rod 23 is rotationally connected to the middle part of the fixed rod 25 arranged in a front-to-back direction, and the front and rear ends of the fixed rod 25 are fixedly connected to the right end of the L-shaped support frame 28, and a rotating cylinder 21 is arranged above the second fixed platform 2, and the piston rod of the rotating cylinder 21 can push the push plate 22 to move left and right, so that the push plate 22 causes the L-shaped support frame 28 to rotate forward and reverse through the push rod 23.

[0032] During the implementation of this embodiment, first, the inspection port of the air-conditioning duct is opened, the device is placed inside the duct, and the side with the rotating brush disc 29 is facing the direction of cleaning. At this time, the rotating cylinder 21 is started in reverse, and the piston rod of the rotating cylinder 21 contracts. At this time, the L-shaped support frame 28 rotates counterclockwise, and the first rotating rod 34 and the second rotating rod 31 rotate to a horizontal state. At this time, the upper and lower sides of the bristles 20 of the leftmost rotating brush disc 29 are respectively pressed against the upper and lower side walls of the duct. At this time, the entire device has completed the preparation work.

[0033] Start the travel wheel 18, the travel wheel 18 drives the device to move to the left, and start the drive motor 33, the rotating brush plate 29 rotates to clean the pipeline. In the initial stage of walking, the piston rod of the reversing cylinder 14 extends to the middle part. At this time, the deflection plate 13 is in the front and back direction, and the extended lengths of the four top wheels 5 are the same. Therefore, after walking for a period of time, the first fixed platform 1 will be in the middle of the pipeline. When the pipeline makes an arc turn, at this time, since there is only one direction change and it is an arc surface, no operation is required. The top wheel 5 will drive the first fixed platform 1 to deflect along the center of the pipeline, thereby achieving a steering effect.

[0034] When encountering a right-angle turn or a T-shaped turn in two directions, it is necessary to determine whether to turn left or right. For example, when it is necessary to turn left, the top wheel 5 on the left front of the device in the moving state will shrink, and the top wheel 5 on the right will extend, so that the first fixed platform 1 is driven by the top wheel 5 to deflect, thereby achieving the effect of turning. After the first fixed platform 1 completes the turn, the reversing cylinder 14 can be driven to the initial state again, and the first fixed platform 1 is at the center of the pipeline again, completing the turning process. A camera can be set on the second fixed platform 2 to determine when the turning process is required, or an operator can stand under the pipeline and determine the position of the device by the sound emitted by the vibration of the pipeline, thereby determining when the turning operation is required.

[0035] The present invention is applicable to a central air-conditioning pipeline cleaning and disinfection device. The four top wheels 5 are driven to extend and retract simultaneously through the reversing drive component 16, so that the first fixed platform 1 can achieve a steering effect. The entire reversing operation is relatively simple, and during the movement, the top wheels 5 can keep the first fixed platform 1 in the middle of the pipeline. Therefore, the operator does not need to continuously control the walking trajectory of the device, which reduces the difficulty of operation.

[0036] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A central air conditioning pipeline cleaning and disinfection device, comprising two parallel first fixed platforms and second fixed platforms, the side of the first fixed platform is provided with walking wheels, It is characterized in that It also includes a cleaning mechanism and a guiding mechanism; The cleaning mechanism comprises an L-shaped support frame arranged at the end of the second fixed platform, and the L-shaped support frame is provided with a rotating brush disc on the front and two side surfaces along the travel direction of the device; The guiding mechanism includes a fixed plate arranged on the side of the first fixed platform, two fixed plates are respectively arranged on both sides of the first fixed platform along the walking direction of the device, a sliding rod is slidably connected to the middle of the fixed plate, a top wheel is arranged on the side of the sliding rod away from the first fixed platform, and a reversing drive component for driving four sliding rods to slide along the fixed plate is arranged in the middle of the first fixed platform, and two adjacent sliding rods move in opposite directions synchronously.

2. A central air conditioning pipeline cleaning and disinfection device according to claim 1, It is characterized in that The reversing drive assembly includes a main shaft rotatably connected to the middle of the first fixed platform, the main shaft is fixedly connected to the center of the rotating frame, a rotating shaft is arranged at the corner of the rotating frame, the rotating shaft is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to an end of the sliding rod close to the center of the first fixed platform.

3. A central air conditioning pipeline cleaning and disinfection device according to claim 2, It is characterized in that The second fixed platform is provided with a suspension column, which is rotatably connected to a reversing cylinder. The piston rod of the reversing cylinder is rotatably connected to one end of a deflection plate, and the other end of the deflection plate is fixedly connected to the main shaft.

4. A central air conditioning pipeline cleaning and disinfection device according to claim 1, It is characterized in that A sliding sleeve is slidably connected to one side of the sliding rod away from the first fixed platform, the end of the sliding sleeve is connected to the top wheel, and a spring cooperating with the sliding rod is arranged inside the sliding sleeve.

5. A central air conditioning pipeline cleaning and disinfection device according to claim 1, It is characterized in that An installation frame is provided at the end of the second fixed platform, and a support shaft is fixedly connected to the end of the installation frame. The support shaft is rotatably connected to the L-shaped support frame. A rotating drive component for adjusting the angle of the L-shaped support frame is provided in the middle of the second fixed platform, and a synchronous drive component for driving three rotating brush discs to rotate is provided on the side of the L-shaped support frame away from the second fixed platform.

6. A central air conditioning pipeline cleaning and disinfecting device according to claim 5, It is characterized in that The two ends of the support shaft are rotatably connected to L-shaped support frames arranged parallel to each other, and the synchronous drive assembly includes two support plates arranged in parallel and fixedly connected to the L-shaped support frames, the middle of the support plate is rotatably connected to a first rotating rod arranged parallel to the walking direction of the device, the end of the first rotating rod away from the second fixed platform is fixedly connected to the rotating brush plate, the side of the L-shaped support frame away from the second fixed platform is rotatably connected to a second rotating rod arranged perpendicular to the first rotating rod, and the end of the second rotating rod away from the first rotating rod is fixedly connected to the rotating brush plate, an active bevel gear is arranged in the middle of the first rotating rod, and driven bevel gears fixedly connected to the second rotating rod are meshed and connected on both sides of the active bevel gear. A driving motor is arranged on the support plate, and an output shaft of the driving motor is fixedly connected to the first rotating rod.

7. A central air conditioning pipeline cleaning and disinfecting device according to claim 5, It is characterized in that The rotary drive assembly includes a slide groove arranged on the second fixed platform, the slide groove is slidably connected to a push plate, the push plate is rotationally connected to one end of a push rod on one side away from the center of the second fixed platform, the other end of the push rod is rotationally connected to the middle part of the fixed rod, the end of the fixed rod is fixedly connected to one end of an L-shaped support frame close to the second fixed platform, and a rotary cylinder is arranged on the second fixed platform, and the piston rod of the rotary cylinder is fixedly connected to the push plate.

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