A cleaning device for central air conditioning outlet pipe

Abstract

The present invention discloses a cleaning device for the air outlet duct of a central air-conditioning device, which solves the problem that the air outlet ducts are generally arranged in a square shape and of different sizes, and the cleaning device cannot clean each inner wall synchronously. The cleaning device comprises a machine body, an equipment positioning assembly is installed on the machine body, an inner wall cleaning assembly is installed at one end of the machine body, the inner wall cleaning assembly is used to clean the inner wall of the air outlet duct, and a dust collecting assembly is installed at the other end of the machine body, the dust collecting assembly is used to collect dust, the equipment positioning assembly includes an inner cavity opened in the machine body, horizontal centering pieces are provided on both sides of the inner cavity, and vertical centering pieces are provided on both sides of the inner cavity; in operation, the present invention can move along the center line of the air outlet duct during cleaning through the horizontal centering and vertical centering of the machine body, so that the inner walls on the four sides of the air outlet duct can be cleaned synchronously during the movement.

Description

Technical Field

[0001] The invention belongs to the technical field of air outlet pipe cleaning, and in particular relates to a cleaning device for the air outlet pipe of a central air conditioner. Background Art

[0002] Central air conditioners can cool or heat, maintain indoor temperature and adjust air flow speed. The air outlet duct is the terminal equipment used by the central air conditioner to supply air. However, after long-term use of the central air conditioner, a large amount of dust will accumulate inside the air outlet duct. The air blown out by the central air conditioner is mixed with dust, which affects people's health. Therefore, the air outlet duct of the central air conditioner needs to be cleaned every once in a while. When cleaning, the air outlet duct needs to be disassembled and cleaned. In order to facilitate the cleaning of the air outlet duct, cleaning equipment can be used to be sent into the air outlet duct for cleaning, but there are the following defects:

[0003] When cleaning with a cleaning device, since the air outlet ducts are generally arranged in a square shape and the air outlet ducts are of different sizes, the cleaning device on the cleaning device cannot contact the inner walls of each air outlet duct at the same time, resulting in low cleaning efficiency. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a cleaning device for the air outlet duct of a central air conditioner, which effectively solves the problem that the air outlet ducts are generally square and of different sizes, and the cleaning device cannot clean each inner wall synchronously.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a cleaning device for a central air conditioner outlet duct, comprising a body, an equipment positioning assembly mounted on the body, an inner wall cleaning assembly mounted on one end of the body, the inner wall cleaning assembly being used to clean the inner wall of the outlet duct, and a dust collection assembly mounted on the other end of the body, the dust collection assembly being used to collect dust;

[0006] The equipment positioning assembly includes an inner cavity opened inside the body, with transverse centering members provided on both sides of the inner cavity for laterally centering the body, and longitudinal centering members provided on both sides of the inner cavity for longitudinally centering the body;

[0007] The transverse centering member includes two first inner plates symmetrically arranged inside the inner cavity, and two push rods are symmetrically installed on the sides of the two first inner plates away from each other. The push rods extend through the side of the machine body, and the ends of the push rods are fixedly installed with first mounting brackets, and the first mounting brackets are installed on the driving wheels;

[0008] The longitudinal centering member includes two second internal plates symmetrically arranged inside the inner cavity, and two pull rods are symmetrically installed on the side of the two second internal plates away from each other. The pull rods extend to the side of the body, and the ends of the pull rods are fixedly installed with connecting plates. The connecting plates are located on the side of the first mounting frame close to the body. The push rods are slidably connected to the connecting plates. Pushing members are symmetrically installed at both ends of the connecting plates. The expansion centering members are symmetrically installed on both sides of the body, and the expansion centering members correspond to the pushing members one by one.

[0009] Two driving members are installed inside the inner cavity, and the two driving members respectively drive the two first inner plates to move relative to each other and the two second inner plates to move relative to each other.

[0010] Preferably, the unfolding centering member includes two swivel seats arranged upper and lower, which are symmetrically mounted on the side walls of the machine body, and a swivel arm is rotatably mounted on the swivel seat, and a second mounting bracket is fixedly mounted on the end of the swivel arm, and a driven wheel is mounted on the side away from each other of the upper and lower second mounting brackets, and a guide groove is provided on the swivel arm, and the end of the upper swivel arm away from the machine body is tilted upward, and the end of the lower swivel arm away from the machine body is tilted downward, and the inclination angles of the two swivel arms are the same, and the driven wheel on the lower swivel arm is in contact with the inner bottom wall of the air outlet duct.

[0011] Preferably, the pushing member includes an I-frame arranged between the upper and lower rotating arms, the two I-frames are symmetrically fixedly installed at both ends of the connecting plate, and two guide push rods are symmetrically installed on the I-frame, and the two guide push rods are respectively slidably installed in the guide grooves on the upper and lower rotating arms.

[0012] Preferably, the driving member includes a double-headed screw mounted on the inner wall of the inner cavity for transverse rotation, two first internal plates are threadedly connected to thread grooves in opposite directions provided on one of the double-headed screws, and two second internal plates are threadedly connected to thread grooves in opposite directions provided on the other double-headed screw, a driven gear is fixedly mounted on the middle part of the double-headed screw, a driving gear is meshedly connected to the bottom of the driven gear, the driving gear is fixedly connected to the output shaft of the motor, and the motor is fixedly mounted on the inner bottom wall of the inner cavity.

[0013] Preferably, the inner wall cleaning assembly includes two upper and lower cleaning members symmetrically arranged longitudinally and two side cleaning members symmetrically arranged transversely;

[0014] The upper and lower cleaning parts include a middle horizontal plate, and a first slide groove is symmetrically opened on the side of the middle horizontal plate away from the machine body. Two movable horizontal plates are symmetrically arranged on the side of the middle horizontal plate away from the machine body. A first slider is fixedly installed on the movable horizontal plate, and the two first sliders are respectively slidably connected to the two first slide grooves. A longitudinal guide rod is fixedly installed on the side of the middle horizontal plate close to the machine body, and the longitudinal guide rod is movably installed inside the longitudinal guide groove. The longitudinal guide groove is symmetrically opened at one end of the machine body, and the two longitudinal guide grooves respectively penetrate the upper and lower sides of the machine body.

[0015] Preferably, a transverse groove is provided on the side of the movable transverse plate close to the middle transverse plate, and the four movable transverse plates correspond one to one with the four second mounting brackets close to one end of the body. A push rod is fixedly installed on the side of the second mounting bracket close to the movable transverse plate, and one end of the push rod is inserted into the interior of the transverse groove.

[0016] Preferably, the side cleaning member includes two movable transverse plates located on the same side and away from the middle longitudinal plate on the side of the second mounting bracket, a first connecting rod is fixedly installed in the middle of the middle longitudinal plate, one end of the first connecting rod is fixedly connected to the first mounting bracket, two movable longitudinal plates are symmetrically provided on the side of the middle longitudinal plate close to the movable transverse plate, the two movable longitudinal plates are fixedly connected to the upper and lower movable transverse plates respectively, a second slide groove is symmetrically provided on the side of the middle longitudinal plate close to the movable longitudinal plate, a second slider is fixedly installed on one side of the movable longitudinal plate, the second slider is slidably connected to the second slide groove, a spring is fixedly installed on the side of the second slider away from the first connecting rod, one end of the spring is fixedly connected to the end inner wall of the second slide groove, and bristles are all provided on the middle transverse plate, the movable transverse plate, the middle longitudinal plate and the movable longitudinal plate.

[0017] Preferably, the dust collection assembly includes a circulation cavity opened inside the body, longitudinal pipe grooves are symmetrically opened on the upper and lower sides of the circulation cavity, transverse pipes are symmetrically installed on both sides of the body, dust collection parts are movably installed inside the longitudinal pipe grooves and inside the transverse pipes, and a dust collection part is installed inside the circulation cavity.

[0018] Preferably, the dust collector includes a piston tube, and the four piston tubes are movably installed inside the longitudinal pipe groove and the transverse pipe respectively. An adsorption box is installed at one end of the piston tube, and an adsorption head is installed equidistantly on the side of the adsorption box away from the machine body. A second connecting rod is fixedly installed on the two adsorption boxes on both sides, and the two second connecting rods are fixedly connected to the two first mounting frames respectively. Two third connecting rods are symmetrically installed on the upper and lower adsorption boxes, and the other end of the third connecting rod is fixedly connected to the middle horizontal plate.

[0019] Preferably, the dust collection component includes a top groove opened at the top of the circulation cavity, the longitudinal tube groove is located on the side of the top groove away from the inner cavity, the interior of the circulation cavity is inserted with a collection box installed through the top groove, the collection box is open on the side close to the longitudinal tube groove, a top plate is installed on the top of the collection box, the bottom wall of the top plate is tightly attached to the top wall of the body, a filter plate is installed inside the collection box, a connecting groove is opened inside the top plate, the connecting groove is located above the collection box, and one end of the connecting groove is connected to the cavity inside the collection box on the side of the filter plate away from the longitudinal tube groove, a fan is fixedly installed on the top of the top plate, and the fan is connected to the connecting groove.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1) During operation, the driving wheels on both sides of the machine body move away from each other until they contact the inner walls of the air outlet duct, thereby aligning the machine body laterally. The I-shaped frame moves toward one side of the machine body, causing the upper and lower rotating arms to rotate and open relative to each other until the upper and lower driven wheels respectively contact the upper and lower inner walls of the air outlet duct, thereby aligning the machine body longitudinally. This allows the machine body to move along the center line of the air outlet duct during cleaning, facilitating synchronous cleaning of the inner walls of the four sides of the air outlet duct during movement.

[0022] 2) During operation, the upper and lower cleaning members are composed of a middle horizontal plate and two movable horizontal plates slidingly arranged therewith, and the side cleaning members are composed of a middle vertical plate and two movable vertical plates sliding therewith. The movable horizontal plate is fixedly connected to the movable vertical plate. When the driving wheel moves, it drives the middle vertical plate to move and simultaneously unfolds the two movable horizontal plates. When the rotating arm rotates, it drives the movable horizontal plate to move and simultaneously unfolds the two movable vertical plates, so that the middle horizontal plate, the movable horizontal plate, the middle vertical plate and the bristles on the movable vertical plate contact the inner wall of the air outlet duct, thereby facilitating the cleaning of the inner walls on all four sides when the machine body moves, and facilitating the cleaning of air outlet ducts of different sizes.

[0023] 3) During operation, the dust after cleaning can be collected by the fan and filter plate. When the driving wheel moves, it can drive the dust collection parts on both sides to move toward the inner wall. When the middle horizontal plate moves, it can drive the upper and lower dust collection parts to move toward the upper and lower inner walls, so that the adsorption head can be close to the dust source, thereby improving the dust adsorption and collection effect and improving the cleaning effect of the air outlet duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0025] In the attached figure:

[0026] Figure 1 This is a schematic structural diagram of a cleaning device for a central air-conditioning outlet pipe according to the present invention;

[0027] Figure 2 Schematic diagram of the internal structure of the body of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the device positioning component of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the pusher of the present invention;

[0030] Figure 5 For the present invention Figure 3 A in the middle is an enlarged structural diagram;

[0031] Figure 6 This is a schematic structural diagram of the inner wall cleaning assembly of the present invention;

[0032] Figure 7 It is a schematic structural diagram of the upper and lower cleaning parts of the present invention;

[0033] Figure 8 This is a schematic structural diagram of the side cleaning member of the present invention;

[0034] Figure 9 For the present invention Figure 6 The enlarged structural diagram at B in the middle;

[0035] Figure 10 A schematic structural diagram of a dust collection assembly according to the present invention;

[0036] Figure 11 It is a schematic structural diagram of the collection box of the present invention.

[0037] 1. Machine body; 2. Equipment positioning assembly; 201. Inner cavity; 202. Horizontal centering member; 2021. First inner plate; 2022. Push rod; 2023. First mounting bracket; 2024. Driving wheel; 203. Longitudinal centering member; 2031. Second inner plate; 2032. Pull rod; 2033. Connecting plate; 2034. Pushing member; 20341. I-beam; 20342. Guide push rod; 2035. Rotating seat; 2036. Rotating arm; 2037. Second mounting bracket; 2038. Driven wheel; 2039. Guide chute; 204. Driving member; 2041. Double-headed screw; 2042. Driven gear; 2043. Driving gear; 2044. Motor; 3. Inner wall cleaning assembly; 301. Longitudinal guide groove; 302. Longitudinal guide rod; 303. Up and down cleaning 3031, middle horizontal plate; 3032, first slide; 3033, movable horizontal plate; 3034, first slider; 3035, horizontal groove; 3036, push rod; 304, side cleaning member; 3041, first connecting rod; 3042, middle longitudinal plate; 3043, second slide; 3044, movable longitudinal plate; 3045, second slider; 3046, spring; 305, bristles; 4, dust collecting assembly; 401, circulation chamber; 402, longitudinal pipe groove; 403, transverse pipe; 404, dust collecting member; 4041, piston tube; 4042, adsorption box; 4043, adsorption head; 405, second connecting rod; 406, third connecting rod; 407, top groove; 408, collection box; 409, top plate; 410, filter plate; 411, connecting groove; 412, fan. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] Depend on Figure 1-11 The present invention relates to a cleaning device for a central air-conditioning outlet duct, comprising a body 1, an equipment positioning assembly 2 being mounted on the body 1, an inner wall cleaning assembly 3 being mounted at one end of the body 1, the inner wall cleaning assembly 3 being used to clean the inner wall of the outlet duct, and a dust collecting assembly 4 being mounted at the other end of the body 1, the dust collecting assembly 4 being used to collect dust;

[0040] The equipment positioning assembly 2 includes an inner cavity 201 opened inside the body 1, and transverse centering members 202 are provided on both sides of the inner cavity 201. The transverse centering members 202 are used to laterally center the body 1, and longitudinal centering members 203 are provided on both sides of the inner cavity 201. The longitudinal centering members 203 are used to longitudinally center the body 1. The transverse centering member 202 includes two first internal plates 2021 symmetrically arranged inside the inner cavity 201, and two push rods 2022 are symmetrically installed on the sides of the two first internal plates 2021 away from each other. The push rods 2022 extend through the side of the body 1, and a first mounting bracket 2023 is fixedly installed on the end of the push rod 2022. A driving wheel 2024 is installed on the first mounting bracket 2023. The longitudinal centering member 203 includes two first internal plates 2021 symmetrically arranged inside the inner cavity 201. The two second internal plates 2031 inside, two pull rods 2032 are symmetrically installed on the side of the two second internal plates 2031 away from each other, the pull rods 2032 pass through the side of the body 1, and the end of the pull rod 2032 is fixedly installed with a connecting plate 2033, and the connecting plate 2033 is located on the side of the first mounting frame 2023 close to the body 1. The push rod 2022 is slidingly connected to the connecting plate 2033, and the two ends of the connecting plate 2033 are symmetrically installed with pushing members 2034. The two sides of the body 1 are symmetrically installed with unfolding centering members, and the unfolding centering members correspond to the pushing members 2034 one by one. Two driving members 204 are installed inside the inner cavity 201, and the two driving members 204 respectively drive the two first internal plates 2021 to move relative to each other and the two second internal plates 2031 to move relative to each other.

[0041] The unfolding centering member includes two upper and lower rotating seats 2035, which are symmetrically mounted on the side wall of the body 1. A rotating arm 2036 is rotatably mounted on the rotating seat 2035, and a second mounting bracket 2037 is fixedly mounted on the end of the rotating arm 2036. A driven wheel 2038 is mounted on the side away from each other of the upper and lower second mounting brackets 2037. A guide groove 2039 is provided on the rotating arm 2036. The end of the upper rotating arm 2036 away from the body 1 is tilted upward, and the end of the lower rotating arm 2036 away from the body 1 is tilted downward, and the inclination angles of the two rotating arms 2036 are the same. The driven wheel 2038 on the lower rotating arm 2036 contacts the bottom wall of the air outlet duct. The pushing member 2034 includes an I-shaped frame 20341 arranged between the upper and lower rotating arms 2036. , two I-shaped frames 20341 are symmetrically fixedly installed at both ends of the connecting plate 2033, and two guide push rods 20342 are symmetrically installed on the I-shaped frame 20341. The two guide push rods 20342 are respectively slidably installed in the guide slide grooves 2039 on the upper and lower rotating arms 2036. The driving wheels 2024 on both sides of the body 1 move away from each other until they contact the inner walls on both sides of the air outlet duct, so that the body 1 is horizontally centered, and the I-shaped frame 20341 moves toward one side of the body 1, so that the upper and lower rotating arms 2036 rotate open relative to each other until the upper and lower driven wheels 2038 contact the upper and lower inner walls of the air outlet duct respectively, and the body 1 is longitudinally centered, so that when cleaning, the body 1 can move along the center line of the air outlet duct, which is convenient for synchronous cleaning of the inner walls of the four sides of the air outlet duct during the movement.

[0042] The driving member 204 includes a double-headed screw 2041 that is laterally rotatably mounted on the inner wall of the inner cavity 201, two first internal plates 2021 are threadedly connected to thread grooves in opposite directions on one of the double-headed screws 2041, and two second internal plates 2031 are threadedly connected to thread grooves in opposite directions on the other double-headed screw 2041, a driven gear 2042 is fixedly mounted in the middle of the double-headed screw 2041, and a driving gear 2043 is meshedly connected to the bottom of the driven gear 2042, and the driving gear 2043 is fixedly connected to the output shaft of the motor 2044, and the motor 2044 is fixedly mounted on the inner bottom wall of the inner cavity 201.

[0043] The inner wall cleaning component 3 includes two upper and lower cleaning members 303 symmetrically arranged in the longitudinal direction and two side cleaning members 304 symmetrically arranged in the transverse direction. The upper and lower cleaning members 303 include a middle horizontal plate 3031. The middle horizontal plate 3031 is symmetrically provided with a first slide groove 3032 on the side away from the body 1. The middle horizontal plate 3031 is symmetrically provided with two movable horizontal plates 3033 on the side away from the body 1. A first slider 3034 is fixedly installed on the movable horizontal plate 3033. The two first sliders 3034 are respectively slidably connected to the two first slide grooves 3032. A longitudinal guide rod 302 is fixedly installed on the side of the middle horizontal plate 3031 close to the body 1. The longitudinal guide rod 302 is movably installed inside the longitudinal guide groove 301. The longitudinal guide groove 301 is symmetrically opened on the body 1. The two longitudinal guide grooves 301 respectively extend through the upper and lower sides of the machine body 1. A transverse groove 3035 is provided on the side of the movable transverse plate 3033 close to the middle transverse plate 3031. The four movable transverse plates 3033 respectively correspond to the four second mounting brackets 2037 close to one end of the machine body 1. A push rod 3036 is fixedly installed on the side of the second mounting bracket 2037 close to the movable transverse plate 3033. One end of the push rod 3036 is inserted into the interior of the transverse groove 3035. The side cleaning member 304 includes a middle longitudinal plate 3042 on the side of the two movable transverse plates 3033 away from the second mounting bracket 2037 on the same side. A first connecting rod 3041 is fixedly installed in the middle of the middle longitudinal plate 3042. One end of the first connecting rod 3041 is fixedly installed with the first mounting bracket 20 23 is fixedly connected, two movable vertical plates 3044 are symmetrically provided on one side of the middle vertical plate 3042 close to the movable horizontal plate 3033, and the two movable vertical plates 3044 are fixedly connected to the upper and lower movable horizontal plates 3033 respectively, and a second sliding groove 3043 is symmetrically opened on one side of the middle vertical plate 3042 close to the movable vertical plate 3044, and a second slider 3045 is fixedly installed on one side of the movable vertical plate 3044, and the second slider 3045 is slidably connected to the second sliding groove 3043, and a spring 3046 is fixedly installed on the side of the second slider 3045 away from the first connecting rod 3041, and one end of the spring 3046 is fixedly connected to the inner wall of the end of the second sliding groove 3043. Brushes 305 are provided on the movable longitudinal plates 3044. The upper and lower cleaning members 303 are composed of a middle transverse plate 3031 and two movable transverse plates 3033 slidingly arranged therewith. The side cleaning members 304 are composed of a middle longitudinal plate 3042 and two movable longitudinal plates 3044 slidingly arranged therewith. The movable transverse plate 3033 is fixedly connected to the movable longitudinal plates 3044. When the driving wheel 2024 moves, it drives the middle longitudinal plate 3042 to move and simultaneously unfolds the two movable transverse plates 3033. When the rotating arm 2036 rotates, it drives the movable transverse plate 3033 to move and simultaneously unfolds the two movable longitudinal plates 3044, so that the bristles 305 on the middle transverse plate 3031, the movable transverse plate 3033, the middle longitudinal plate 3042 and the movable longitudinal plate 3044 contact the inner wall of the air outlet duct.This makes it easy to clean the inner walls of the four sides when the machine body 1 is moved, and it is also easy to clean air outlet ducts of different sizes.

[0044] The dust collecting assembly 4 includes a circulation chamber 401 opened inside the body 1, and longitudinal pipe grooves 402 are symmetrically opened on the upper and lower sides of the circulation chamber 401. Transverse pipes 403 are symmetrically installed on both sides of the body 1. Dust collecting parts 404 are movably installed inside the longitudinal pipe grooves 402 and the transverse pipes 403. The interior of the circulation chamber 401 is equipped with a dust collecting part, and the dust collecting part 404 includes a piston tube 4041. The four piston tubes 4041 are movably installed in the interiors of the longitudinal pipe grooves 402 and the transverse pipes 403, and one end of the piston tube 4041 is equipped with an adsorption part. The suction box 4042 is equidistantly installed with an adsorption head 4043 on one side of the adsorption box 4042 away from the body 1. The second connecting rod 405 is fixedly installed on the two adsorption boxes 4042 on both sides. The two second connecting rods 405 are respectively fixedly connected to the two first mounting brackets 2023. Two third connecting rods 406 are symmetrically installed on the upper and lower adsorption boxes 4042. The other end of the third connecting rod 406 is fixedly connected to the middle horizontal plate 3031. The dust collection part includes a top groove 407 opened at the top of the circulation cavity 401, and the longitudinal pipe groove 402 is located at the top groove 407 away from the top groove 407. On one side of the inner cavity 201, a collecting box 408 is inserted into the interior of the circulation cavity 401 through the top groove 407. The collecting box 408 is open on one side near the longitudinal tube groove 402. A top plate 409 is installed on the top of the collecting box 408. The bottom wall of the top plate 409 is in close contact with the top wall of the body 1. A filter plate 410 is installed inside the collecting box 408. A connecting groove 411 is opened inside the top plate 409. The connecting groove 411 is located above the collecting box 408, and one end of the connecting groove 411 is connected to the interior of the collecting box 408 at the filter plate 410 away from the longitudinal tube groove 402. 2 One side cavity is connected, and a fan 412 is fixedly installed on the top of the top plate 409. The fan 412 is connected to the connecting groove 411. The fan 412 and the filter plate 410 can collect the dust after cleaning. When the driving wheel 2024 moves, it can drive the dust collecting members 404 on both sides to move toward the inner wall. When the middle horizontal plate 3031 moves, it can drive the upper and lower dust collecting members 404 to move toward the upper and lower inner walls, so that the adsorption head 4043 can be close to the dust source position, thereby improving the dust adsorption and collection effect and improving the cleaning effect of the air outlet duct.

[0045] Working principle: When working, first place the device in the air outlet duct of the air conditioner, turn on the two motors 2044, so that the driving gear 2043 rotates and drives the double-headed screw 2041 to rotate, thereby driving the two first internal plates 2021 away from each other and the two second internal plates 2031 towards each other in the same direction;

[0046] When the two first inner plates 2021 move away from each other, the two driving wheels 2024 are driven to move away from each other. When the two driving wheels 2024 are adjusted to contact the inner walls of the air outlet duct on both sides, the body 1 is adjusted to a state where the air outlet duct is laterally centered.

[0047] When the two second inner plates 2031 approach each other, they drive the I-shaped frame 20341 to move toward the side of the machine body 1. Since the two guide push rods 20342 on the I-shaped frame 20341 are slidably installed in the guide slide grooves 2039 on the upper and lower rotating arms 2036, and the ends of the upper and lower rotating arms 2036 away from the machine body 1 are tilted upward and downward respectively, when the I-shaped frame 20341 moves toward the side of the machine body 1, the two guide push rods 20342 push the two rotating arms 2036 away from each other, pushing the tilt angle of the rotating arms 2036 to increase, thereby raising the height of the machine body 1. In the original state, the driven wheel 2038 on the lower rotating arm 2036 contacts the inner bottom wall of the air outlet duct. As the rotating arm 2036 continues to tilt, until the driven wheel 2038 on the upper rotating arm 2036 contacts the inner top wall of the air outlet duct, the machine body 1 is in a longitudinally centered state;

[0048] When the two driving wheels 2024 move away from each other, the middle longitudinal plate 3042 is fixedly connected to the first mounting bracket 2023 via the first connecting rod 3041, thereby driving the two middle longitudinal plates 3042 to move away from each other, and the movable transverse plate 3033 is fixedly connected to the corresponding movable longitudinal plate 3044, thereby driving the two movable transverse plates 3033 on the middle transverse plate 3031 to move away from each other and unfold, so that the ends of the two movable transverse plates 3033 that move away from each other contact the inner walls of the air outlet duct on both sides, and at the same time, during the outward rotation of the upper and lower rotating arms 2036, due to the second mounting bracket 2023, the two movable transverse plates 3033 on the middle transverse plate 3031 move away from each other and unfold, The end of the push rod 3036 on the bracket 2037 is slidably mounted inside the transverse groove 3035 on the movable transverse plate 3033, thereby driving the movable transverse plate 3033 and the middle transverse plate 3031 to move longitudinally along with the second mounting bracket 2037, thereby pulling the two movable longitudinal plates 3044 away from each other until the ends of the two movable longitudinal plates 3044 that are away from each other contact the upper and lower inner walls of the air outlet duct, thereby allowing the two upper and lower cleaning members 303 and the two side cleaning members 304 to unfold and adapt to the inner wall of the air outlet duct, so that the bristles 305 can contact the inner wall of the air outlet duct;

[0049] During the movement of the middle horizontal plate 3031, the upper and lower dust collecting members 404 are pulled away from each other by the third connecting rod 406, and during the movement of the first mounting bracket 2023, the dust collecting members 404 on both sides are driven to move away from each other, so that the four dust collecting members 404 are respectively arranged close to the four inner walls of the air outlet duct;

[0050] Then, the driving wheel 2024 rolls and drives the body 1 to move along the air outlet duct under the action of friction. During the movement, the bristles 305 continuously clean the inner wall of the air outlet duct, sweeping off the dust attached to the air outlet duct. At the same time, the fan 412 is turned on to drive the air inside the air outlet duct into the circulation chamber 401 through the adsorption head 4043, the adsorption box 4042 and the piston tube 4041. When the air enters the circulation chamber 401, the swept dust is driven into the circulation chamber 401 together. Under the guiding action of the fan 412, the dust and air enter the cavity of the collection box 408, and the swept dust is blocked under the filtering action of the filter plate 410, and the air returns to the inside of the air outlet duct from the connecting groove 411 and the holes in the fan 412 shell, thereby completing the collection of dust.

[0051] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0052] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cleaning device for a central air-conditioning outlet pipe, comprising a body (1), characterized in that: An equipment positioning assembly (2) is installed on the body (1), an inner wall cleaning assembly (3) is installed on one end of the body (1), and the inner wall cleaning assembly (3) is used to clean the inner wall of the air outlet duct, and a dust collection assembly (4) is installed on the other end of the body (1), and the dust collection assembly (4) is used to collect dust; The equipment positioning component (2) includes an inner cavity (201) opened inside the body (1), and transverse centering members (202) are provided on both sides of the inner cavity (201), and the transverse centering members (202) are used to perform transverse centering on the body (1), and longitudinal centering members (203) are provided on both sides of the inner cavity (201), and the longitudinal centering members (203) are used to perform longitudinal centering on the body (1); The transverse centering member (202) comprises two first internal plates (2021) symmetrically arranged inside the inner cavity (201); two push rods (2022) are symmetrically installed on the sides of the two first internal plates (2021) that are away from each other; the push rods (2022) extend through the side of the machine body (1); a first mounting frame (2023) is fixedly installed at the end of the push rod (222); and a driving wheel (2024) is installed on the first mounting frame (2023); The longitudinal centering member (203) includes two second internal plates (2031) symmetrically arranged inside the inner cavity (201), two pull rods (2032) are symmetrically installed on the sides of the two second internal plates (2031) away from each other, the pull rods (2032) penetrate the side of the body (1), and the ends of the pull rods (2032) are fixedly installed with connecting plates (2033), and the connecting plates (2033) are located on the side of the first mounting frame (2023) close to the body (1). The push rod (2022) is slidably connected to the connecting plate (2033), and pushing members (2034) are symmetrically installed at both ends of the connecting plate (2033). The expanded centering members are symmetrically installed on both sides of the body (1), and the expanded centering members correspond to the pushing members (2034) one by one. Two driving members (204) are installed inside the inner cavity (201), and the two driving members (204) respectively drive the two first inner plates (2021) to move relative to each other and the two second inner plates (2031) to move relative to each other; the unfolding centering member includes two rotating seats (2035) arranged upper and lower, the rotating seats (2035) are symmetrically installed on the side walls of the body (1), a rotating arm (2036) is rotatably installed on the rotating seat (2035), and a second mounting frame (2036) is fixedly installed at the end of the rotating arm (2036). 037), a driven wheel (2038) is installed on the side away from each other of the upper and lower second mounting frames (2037), a guide slot (2039) is provided on the rotating arm (2036), the end of the upper rotating arm (2036) away from the body (1) is tilted upward, and the end of the lower rotating arm (2036) away from the body (1) is tilted downward, and the inclination angles of the two rotating arms (2036) are the same, and the driven wheel (2038) on the lower rotating arm (2036) is in contact with the bottom wall of the air outlet pipe; The inner wall cleaning assembly (3) comprises two upper and lower cleaning members (303) arranged symmetrically in the longitudinal direction and two side cleaning members (304) arranged symmetrically in the transverse direction; The upper and lower cleaning members (303) include a middle transverse plate (3031), a first slide groove (3032) is symmetrically provided on the side of the middle transverse plate (3031) away from the machine body (1), two movable transverse plates (3033) are symmetrically provided on the side of the middle transverse plate (3031) away from the machine body (1), a first slider (3034) is fixedly installed on the movable transverse plate (3033), and the two first sliders (3034) are respectively slidably connected to the two first slide grooves (3032), and a longitudinal guide rod (302) is fixedly installed on the side of the middle transverse plate (3031) close to the machine body (1), and the longitudinal guide rod (302) is movably installed in the longitudinal guide groove (301), longitudinal guide grooves (301) are symmetrically opened at one end of the body (1), and the two longitudinal guide grooves (301) respectively penetrate the upper and lower sides of the body (1); a transverse groove (3035) is opened on the side of the movable transverse plate (3033) close to the middle transverse plate (3031), and the four movable transverse plates (3033) correspond to the four second mounting frames (2037) close to one end of the body (1) respectively, and a push rod (3036) is fixedly installed on the side of the second mounting frame (2037) close to the movable transverse plate (3033), and one end of the push rod (3036) is inserted into the interior of the transverse groove (3035).

2. A cleaning device for central air-conditioning outlet pipe according to claim 1, characterized in that: The pushing member (2034) comprises an I-shaped frame (20341) arranged between the upper and lower rotating arms (2036); the two I-shaped frames (20341) are symmetrically fixedly mounted at both ends of the connecting plate (2033); two guide push rods (20342) are symmetrically mounted on the I-shaped frame (20341); the two guide push rods (20342) are respectively slidably mounted inside the guide slots (2039) on the upper and lower rotating arms (2036).

3. The cleaning device for central air-conditioning outlet pipe according to claim 2, characterized in that: The driving member (204) comprises a double-headed screw (2041) mounted on the inner wall of the inner cavity (201) for transverse rotation, two first internal plates (2021) being threadedly connected to thread grooves in opposite directions provided on one of the double-headed screws (2041), two second internal plates (2031) being threadedly connected to thread grooves in opposite directions provided on the other double-headed screw (2041), a driven gear (2042) being fixedly mounted in the middle of the double-headed screw (2041), a driving gear (2043) being meshedly connected below the driven gear (2042), the driving gear (2043) being fixedly connected to the output shaft of a motor (2044), and the motor (2044) being fixedly mounted on the inner bottom wall of the inner cavity (201).

4. A cleaning device for central air-conditioning outlet pipes according to claim 3, characterized in that: The side cleaning member (304) includes two movable transverse plates (3033) located on the same side and a middle longitudinal plate (3042) on the side away from the second mounting frame (2037). A first connecting rod (3041) is fixedly installed in the middle of the middle longitudinal plate (3042). One end of the first connecting rod (3041) is fixedly connected to the first mounting frame (2023). Two movable longitudinal plates (3044) are symmetrically provided on one side of the middle longitudinal plate (3042) close to the movable transverse plate (3033). The two movable longitudinal plates (3044) are fixedly connected to the upper and lower movable transverse plates (3033) respectively. The middle longitudinal plate (3042) is close to the movable longitudinal plate (3033). A second slide groove (3043) is symmetrically provided on one side of the plate (3044), a second slider (3045) is fixedly installed on one side of the movable longitudinal plate (3044), the second slider (3045) is slidably connected to the second slide groove (3043), a spring (3046) is fixedly installed on the side of the second slider (3045) away from the first connecting rod (3041), one end of the spring (3046) is fixedly connected to the inner wall of the end of the second slide groove (3043), and bristles (305) are provided on the middle horizontal plate (3031), the movable horizontal plate (3033), the middle longitudinal plate (3042) and the movable longitudinal plate (3044).

5. The cleaning device for central air-conditioning outlet pipe according to claim 4, characterized in that: The dust collecting assembly (4) comprises a circulation cavity (401) provided inside the machine body (1), longitudinal pipe grooves (402) being symmetrically provided on the upper and lower sides of the circulation cavity (401), transverse pipes (403) being symmetrically installed on both sides of the machine body (1), dust collecting components (404) being movably installed inside the longitudinal pipe grooves (402) and inside the transverse pipes (403), and a dust collecting component being installed inside the circulation cavity (401).

6. The cleaning device for central air-conditioning outlet pipe according to claim 5, characterized in that: The dust collecting member (404) comprises a piston tube (4041), wherein four piston tubes (4041) are movably mounted inside the longitudinal tube groove (402) and the transverse tube (403), respectively; an adsorption box (4042) is mounted at one end of the piston tube (4041), and an adsorption head (4043) is mounted equidistantly on the side of the adsorption box (4042) away from the machine body (1); second connecting rods (405) are fixedly mounted on the two adsorption boxes (4042) on both sides, and the two second connecting rods (405) are fixedly connected to the two first mounting frames (2023) respectively; two third connecting rods (406) are symmetrically mounted on the upper and lower adsorption boxes (4042), and the other end of the third connecting rod (406) is fixedly connected to the middle transverse plate (3031).

7. A cleaning device for central air-conditioning outlet pipes according to claim 6, characterized in that: The dust collecting member comprises a top groove (407) opened at the top of the circulation cavity (401), a longitudinal tube groove (402) located on a side of the top groove (407) away from the inner cavity (201), a collection box (408) is inserted into the interior of the circulation cavity (401) through the top groove (407), a side of the collection box (408) close to the longitudinal tube groove (402) is open, a top plate (409) is installed at the top of the collection box (408), and the bottom wall of the top plate (409) is aligned with the bottom wall of the body (1). The top wall is tightly attached, a filter plate (410) is installed inside the collection box (408), a connecting groove (411) is opened inside the top plate (409), the connecting groove (411) is located above the collection box (408), and one end of the connecting groove (411) is connected to the cavity inside the collection box (408) on the side of the filter plate (410) away from the longitudinal tube groove (402), and a fan (412) is fixedly installed on the top of the top plate (409), and the fan (412) is connected to the connecting groove (411).

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