A negative pressure pipeline cleaning device

Abstract

The application discloses a kind of negative pressure pipeline cleaning device, belong to pipeline cleaning equipment technical field.It mainly aims at the problem that existing ventilation pipeline is messy and sundry scatters when cleaning inner cavity, and proposes the following technical scheme, including base piece, the outside of base piece is equipped with sleeve, drive mechanism is installed on sleeve, drive mechanism is provided with spray member and cleaning mechanism on the front and back sides of sleeve respectively.The application sets up front end cover and drive mechanism on base piece, then connects external negative pressure suction equipment through conveying pipe, cooperates with cleaning mechanism and spray member, and then can realize the scattering and suction of flocculation in pipeline, and the cleaning and washing treatment of inner wall of pipeline when cleaning sundry in pipeline, reduce cleaning step, cooperate with tail end cover to realize the efficient collection of sundry, reduce the damage of sundry to human body and reduce the burden of discharged sundry of staff in later stage.

Description

Technical Field

[0001] This invention relates to the field of pipeline cleaning equipment technology, specifically a negative pressure pipeline cleaning device. Background Technology

[0002] Negative pressure pipelines are pipelines that maintain a pressure lower than atmospheric pressure inside, allowing liquids or gases to be drawn in without leakage. Applications of negative pressure pipelines mainly include drainage negative pressure pipelines, ventilation negative pressure pipelines, industrial negative pressure pipelines, and medical negative pressure pipelines. Among these, ventilation negative pressure pipelines accumulate a large amount of dust and other debris over time. This accumulation forms flocculent material inside the pipeline, causing blockages and requiring cleaning and maintenance.

[0003] Currently, cleaning the inside of ventilation negative pressure ducts requires first breaking up the fibrous material inside the duct, and then using negative pressure suction equipment to remove the broken fibrous material. After the fibrous material is removed, an electric brush head is inserted into the duct to brush and clean the inner wall of the duct. This is combined with the negative pressure suction equipment to achieve efficient cleaning of the debris inside the duct. This cleaning process not only requires multiple steps, but also, because the negative pressure suction equipment cannot guarantee the sealing of the duct outlet, the debris discharged from the duct will scatter at the outlet during cleaning, which can easily cause injury to the workers. The scattered debris also increases the burden of subsequent cleaning. Summary of the Invention

[0004] To overcome the aforementioned deficiencies of the prior art, the present invention provides a negative pressure pipeline cleaning device. By setting a front end cover and a drive mechanism on a base component, and connecting an external negative pressure suction device through a delivery pipe, along with a cleaning mechanism and a spray component, the device can simultaneously disperse and suction flocculent matter inside the pipeline, as well as clean and wash the inner wall of the pipeline, reducing cleaning steps. With the tail end cover, it can achieve efficient collection of debris, reduce the harm of debris to the human body, and lessen the burden on workers in the later processing of discharged debris, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A negative pressure pipeline cleaning device includes a base component, a sleeve fitted around the base component, a drive mechanism mounted on the sleeve, and a spraying component and a cleaning mechanism located on the sleeve on the front and rear sides of the drive mechanism, respectively. The spraying component and the drive mechanism are connected by a splicing ring. A front cover is provided at the rear end of the base component, and a conveying pipe is installed at the front end of the base component. A rear cover is fitted on the conveying pipe, and the rear end of the rear cover is movably connected to the base component. The drive mechanism consists of a drive component, a transmission component, and a dispersing component. There are two transmission components, both rotatably connected to the outer shell wall of the sleeve. The drive component is located between the two transmission components. The dispersing component is located between the base component and the sleeve, and is located behind the drive component. The drive component provides driving force for the operation of the transmission component and the dispersing component. The cleaning mechanism includes a sleeve, with multiple carrier plates movably connected to the outer circumferential wall of the sleeve. A beveled ring is connected to the inner wall of the multiple carrier plates, and multiple cleaning components for cleaning the inner wall of the pipeline are connected to the outer wall of the multiple carrier plates.

[0007] As a further embodiment of the present invention, the basic component is composed of a hollow tube and an umbrella-shaped cover. The umbrella-shaped cover is integrally disposed at the rear end of the hollow tube. The front end cover is threadedly connected to the rear end shell wall of the umbrella-shaped cover. Multiple support plates are disposed on the inner shell wall of the sleeve along the circumferential direction. The side of the support plate away from the sleeve is fixedly connected to the outer shell wall of the hollow tube. The rear end cover and the rear end of the conveying pipe are both threadedly connected to the front end of the hollow tube. The rear end cover is threadedly connected to the outer shell wall of the hollow tube. Multiple arc-shaped notches for wastewater passage are opened on the rear shell wall of the rear end cover along the circumferential direction.

[0008] As a further embodiment of the present invention, the conveying pipe includes an outer pipe threadedly connected to the inner shell wall of the hollow tube, and a conical sleeve integrally provided on the inner wall of the outer pipe. The front end of the conical sleeve is threadedly connected to the inner pipe. The outer pipe has multiple notches for wastewater passage opened along the circumferential direction on its peripheral wall. The notches are located on the rear side of the conical sleeve and inside the rear end cover.

[0009] As a further embodiment of the present invention, the driving component includes a base disposed on the top of the outer ring of the base component, a motor mounted on the base, a rotating shaft mounted on the output end of the motor, the top end of the rotating shaft passing through the sleeve and mounted with a gear, a cam located on the rotating shaft between the base component and the sleeve, and a push rod movably connected to the peripheral wall of the cam; an annular groove is formed on the peripheral wall of the cam, and a slider is slidably connected in the annular groove, and the push rod is fixedly connected to the slider; the transmission component includes a ring body rotatably connected to the peripheral wall of the outer ring of the sleeve, and toothed rings are provided on the side wall of the ring body, both of which mesh with the gear for transmission.

[0010] As a further embodiment of the present invention, the disintegration assembly includes an annular plate slidably connected to the outer shell wall of the base component. The front side of the annular plate is fixedly connected to the push rod by bolts. Multiple rotating shafts are rotatably connected to the rear shell wall of the annular plate in a circumferential direction. The side of the rotating shaft away from the annular plate extends to the outside of the base component and is equipped with disintegration fan blades. Each rotating shaft has an arc-shaped closed-loop groove on its peripheral wall. A moving block is slidably connected in the arc-shaped closed-loop groove. A support rod is fixedly connected to the moving block. The end of the support rod away from the moving block is fixedly connected to the inner shell wall of the sleeve. A bidirectional frustum located on the rotating shaft is sleeved behind the arc-shaped closed-loop groove. A pusher is provided on the side of the bidirectional frustum. The pusher includes a support rod. The end of the support rod away from the bidirectional frustum passes through the peripheral wall of the sleeve and is rolledly connected to a ball. A tray is provided on the peripheral wall of the support rod. A return spring is sleeved between the tray and the sleeve and located on the support rod. The support rod and the corresponding bidirectional frustum are in rolling contact through a ball.

[0011] As a further embodiment of the present invention, a ring located on the outer shell wall of the sleeve is rotatably connected to the rear of the rear transmission component. The sleeve is fitted onto the rear transmission component and the ring, and the sleeve and the rear transmission component are fixedly connected by screws. Multiple rectangular grooves are formed along the circumferential direction on the outer circumferential wall of the sleeve. Multiple carrier plates are slidably connected in the corresponding rectangular grooves. A rectangular through hole is formed on the bottom shell wall of each groove. An annular groove is formed on the inner shell wall of the sleeve. Multiple spring telescopic rods are arranged along the circumferential direction on the inner side wall of the annular groove. The output end of the spring telescopic rod is installed on the corresponding side wall of the inclined ring. The ball bearings on the bidirectional circular platform are in rolling contact with the inclined ring.

[0012] As a further embodiment of the present invention, the cleaning assembly includes a fixing ring sleeved on the sleeve. The inner ring of the fixing ring has a plurality of protrusions arranged along the circumferential direction. The side of the protrusions away from the fixing ring is fixedly connected to a corresponding carrier plate. The outer ring of the fixing ring has a plurality of sleeves arranged along the circumferential direction. The bottom inner wall of the sleeve is provided with a guide rod. A movable plate is sleeved on the guide rod. A cleaning brush plate is provided at the top of the movable plate. A compression spring located on the guide rod is sleeved between the movable plate and the bottom inner wall of the sleeve.

[0013] As a further embodiment of the present invention, the front side of the transmission component is provided with an annular receiving groove on the outer circumferential wall of the sleeve. The bottom shell wall of the annular receiving groove is provided with a plurality of water-permeable holes for water passage along the circumferential direction. The spraying component includes an annular shell cover slidably connected in the annular receiving groove. The outer shell wall of the annular shell cover is provided with a plurality of nozzles for water spraying along the circumferential direction. The front side of the splicing ring is fixedly connected to the spraying component by bolts, and the rear side of the splicing ring is installed on the front transmission component by screws.

[0014] As a further embodiment of the present invention, an annular shell is integrally provided on the inner shell wall of the sleeve, and a water storage area for accommodating water resources is formed between the sleeve and the annular shell. The water storage area corresponds to the annular receiving groove. A hole is installed on the outer shell wall of the sleeve, and a water inlet pipe for connecting the water storage area is provided in the hole. A water supply pipe for connecting an external water source is installed at the port of the water inlet pipe.

[0015] Compared with existing technologies,

[0016] The beneficial effects of this invention are:

[0017] 1. By setting a front cover and drive mechanism on the base component, and then connecting an external negative pressure suction device through a delivery pipe, along with a cleaning mechanism and spraying components, the system can achieve the dispersing and suction of flocculent materials inside the pipe, as well as the cleaning and washing of the inner wall of the pipe, in one go when cleaning debris inside the pipe. This reduces cleaning steps, improves the efficiency of cleaning the inside of the pipe, and reduces the burden on workers.

[0018] 2. The front cover can be selectively installed according to the inner diameter of the pipe. The front cover is designed to ensure that the drive mechanism can easily collect the flocculent material inside the pipe when it is broken up and sucked up, and to prevent the broken flocculent material from being discharged directly from the outlet of the pipe under the action of suction.

[0019] 3. A tail end cover can be installed on the basic components according to the inner diameter of the pipe, which can achieve efficient collection of debris, reduce the harm of debris to the human body and reduce the burden on workers to handle the debris discharged later.

[0020] 4. The cleaning mechanism rotates and moves with the operation of the drive mechanism. The centrifugal force generated by its rotation causes the cleaning brush on it to rotate and spread inside the pipe, thereby cleaning the inner wall of pipes with different inner diameters.

[0021] 5. The spraying component rotates and moves with the operation of the drive mechanism, which can spray the input water resources onto the inner wall of the pipe, thereby further cleaning the inner wall of the pipe after cleaning, improving the cleanliness of the pipe. The water resources will also mix the debris generated by the operation of the cleaning mechanism, thus achieving the dust reduction effect on the one hand, and facilitating the collection and discharge of debris on the other hand.

[0022] 6. When the drive mechanism rotates, the bidirectional truncated cone lifts and lowers the pushing component, which then contacts the inclined ring in the cleaning mechanism to push it. With the help of the spring telescopic rod, the carrier plate can be reciprocated laterally, which allows the cleaning components in the cleaning mechanism to reciprocate laterally while rotating, further improving the cleaning effect on the inner wall of the pipe. Attached Figure Description

[0023] Figure 1 A three-dimensional structural diagram of a negative pressure pipeline cleaning device. Figure 1 ;

[0024] Figure 2 A three-dimensional structural diagram of a negative pressure pipeline cleaning device. Figure 2 ;

[0025] Figure 3 for Figure 1 A schematic diagram of the longitudinal sectional structure;

[0026] Figure 4 for Figure 3 A magnified schematic diagram of the local structure at point A;

[0027] Figure 5 for Figure 3 A schematic diagram of the structure viewed from below;

[0028] Figure 6 for Figure 3 Schematic diagram of basic components and drive mechanism Figure 1 ;

[0029] Figure 7 for Figure 3 Schematic diagram of basic components and drive mechanism Figure 2 ;

[0030] Figure 8 for Figure 7 A magnified schematic diagram of the local structure at point B;

[0031] Figure 9 for Figure 7 A schematic diagram of the drive component structure;

[0032] Figure 10 for Figure 1 A schematic diagram of the cleaning mechanism structure;

[0033] Figure 11 for Figure 10 A magnified schematic diagram of the local structure at point C;

[0034] Figure 12 for Figure 10 A magnified schematic diagram of the local structure at point D;

[0035] Figure 13 for Figure 10 A schematic diagram of the cleaning component structure.

[0036] In the diagram: 1. Base component; 2. Sleeve; 3. Drive mechanism; 31. Drive component; 311. Motor; 312. Cam; 313. Gear; 32. Transmission component; 321. Ring body; 322. Gear ring; 33. Annular plate; 34. Rotating shaft; 35. Support rod; 36. Double-sided frustum; 37. Support rod; 4. Annular shell; 5. Spraying component; 6. Splicing ring; 7. Cleaning mechanism; 71. Sleeve; 72. Carrier plate; 73. Cleaning assembly; 731. Fixing ring; 732. Shell; 733. Guide rod; 734. Moving plate; 735. Cleaning brush plate; 74. Inclined ring; 75. Spring telescopic rod; 8. Front cover; 9. Rear cover; 10. Conveying pipe; 101. Outer pipe; 102. Conical sleeve; 103. Inner pipe. Detailed Implementation

[0037] Please see Figures 1-4 In this embodiment of the invention, a negative pressure pipeline cleaning device includes a base component 1, which is composed of a hollow tube and an umbrella-shaped cover, wherein the umbrella-shaped cover is integrally disposed at the rear end of the hollow tube. The umbrella-shaped cover facilitates the accumulation of flocculent matter in the hollow tube during suction cleaning of the interior of the ventilation duct. A sleeve 2 is fitted over the base component 1, and a drive mechanism 3 is installed on the sleeve 2. Multiple support plates are arranged circumferentially on the inner shell wall of the sleeve 2, and the side of the support plate away from the sleeve 2 is fixedly connected to the outer shell wall of the hollow tube. The support plates ensure the stable mounting of the sleeve 2 on the base component 1. A spraying element 5 and a cleaning mechanism 7 are respectively disposed on the front and rear sides of the drive mechanism 3, located on the sleeve 2, wherein the spraying element 5 and the drive mechanism 3 are spliced ​​together by a splicing ring 6. The operation of the drive mechanism 3 drives the spraying element 5 and the cleaning mechanism 7 to move, thereby cleaning the inner wall of the ventilation duct. The base component 1 has a front cover 8 at its rear end, a conveying pipe 10 at its front end, and a rear cover 9 fitted onto the conveying pipe 10. The rear end of the rear cover 9 is movably connected to the base component 1. The front cover 8 is used to collect flocculent material during the cleaning of the ventilation duct, while the rear cover 9 is used to collect wastewater containing debris generated after the cleaning mechanism 7 and the spray component 5 have been operating.

[0038] The front cover 8 is threaded to the rear shell wall of the umbrella-shaped cover, and the rear cover 9 and the rear end of the conveying pipe 10 are both threaded to the front end of the hollow pipe. The rear cover 9 is threaded to the outer shell wall of the hollow pipe, and multiple arc-shaped notches for wastewater passage are formed along the circumferential direction on the rear shell wall of the rear cover 9. This allows for easy disassembly and assembly of the front cover 8, rear cover 9, and conveying pipe 10, and they can be replaced according to actual needs, thus enabling the cleaning of ventilation ducts with different inner diameters. The arc-shaped notches help collect wastewater containing impurities. Arc-shaped grooves are formed on the peripheral walls of both the front cover 8 and the rear cover 9, and moving rollers are movably connected to these grooves via pins. These moving rollers ensure smooth and stable movement of the product inside the ventilation duct. The front cover 8 is threaded to the rear shell wall of the umbrella-shaped cover, and the rear cover 9 and the rear end of the conveying pipe 10 are both threaded to the front end of the hollow pipe. The rear cover 9 is threaded to the outer shell wall of the hollow tube. Multiple arc-shaped notches along the circumferential direction are formed on the rear shell wall of the rear cover 9 to facilitate wastewater passage. This allows for easy disassembly and assembly of the front cover 8, rear cover 9, and conveying pipe 10, and enables replacement as needed, thus facilitating the cleaning of ventilation ducts with different inner diameters. The arc-shaped notches help collect wastewater containing impurities. Arc-shaped grooves are formed on the peripheral walls of both the front cover 8 and the rear cover 9, with moving rollers movably connected to these grooves via pins. These moving rollers ensure smooth and stable movement of the product inside the ventilation duct as it enters.

[0039] Please see Figure 3 and Figures 6-9 In this embodiment of the invention, the driving mechanism 3 comprises a driving component 31, a transmission component 32, and a dispersing assembly. The transmission component 32 includes two components, each rotatably connected to the outer shell wall of the sleeve 2. The driving component 31 is located between the two transmission components 32, and the dispersing assembly is located between the base component 1 and the sleeve 2, and behind the driving component 31. The driving component 31 provides driving force for the operation of the transmission components 32 and the dispersing assembly. The operation of the driving component 31 causes the two transmission components 32 to move, driving the dispersing assembly to operate, thereby achieving the cleaning work inside the ventilation duct.

[0040] The driving component 31 includes a base disposed on the top of the outer ring of the base component 1, and a motor 311 is mounted on the base. The motor 311 comes in various models and can be selected according to the form of the product. In this embodiment, a micro motor is used to meet the requirements of assembly on the product.

[0041] A rotating shaft is installed at the output end of the motor 311. The top end of the rotating shaft passes through the sleeve 2 and is fitted with a gear 313. A cam 312 is located on the rotating shaft between the base component 1 and the sleeve 2. A push rod is movably connected to the peripheral wall of the cam 312. The operation of the motor 311 drives the gear 313 and the cam 312 to move synchronously.

[0042] The cam 312 has an annular groove on its peripheral wall, and a slider is slidably connected in the annular groove. The push rod is fixedly connected to the slider.

[0043] The transmission component 32 includes a ring 321 rotatably connected to the outer circumferential wall of the sleeve 2. Gear rings 322 are provided on the side walls of the ring 321, and both gear rings 322 mesh with the gear 313 for transmission. During rotation, the gear rings 322 cause the corresponding ring 321 to move, thereby realizing the movement of the transmission component 32. Since the two gear rings 322 are located on opposite sides of the gear 313, the two transmission components 32 rotate in opposite directions, further improving the cleaning effect inside the ventilation duct.

[0044] The disintegration assembly includes an annular plate 33 slidably connected to the outer shell wall of the base component 1. The front side of the annular plate 33 is fixedly connected to the push rod by bolts. When the cam 312 rotates, the push rod performs reciprocating displacement movement in cooperation with the slider, thereby realizing the reciprocating push-pull adjustment of the annular plate 33. Multiple sliding grooves are formed on the peripheral wall of the base component 1 along the circumferential direction. Sliding blocks are slidably connected in the sliding grooves. The inner ring of the annular plate 33 is fixedly connected to the corresponding sliding block, thereby ensuring the stability of the lateral movement of the annular plate 33.

[0045] Multiple rotating shafts 34 are rotatably connected to the rear shell wall of the annular plate 33 in a circumferential direction. The side of the rotating shaft 34 away from the annular plate 33 extends to the outside of the base component 1 and is equipped with a dispersing fan blade. The rotating shaft 34 is connected to the annular plate 33 by bearings, thereby ensuring the rotation effect when the rotating shaft 34 moves laterally with the reciprocating displacement of the annular plate 33.

[0046] Each rotating shaft 34 has an arc-shaped closed-loop groove on its peripheral wall, and a movable block is slidably connected in the arc-shaped closed-loop groove. A support rod 35 is fixedly connected to the movable block, and the end of the support rod 35 away from the movable block is fixedly connected to the inner shell wall of the sleeve 2. The support rod 35, the movable block and the arc-shaped closed-loop groove work together to ensure that the rotating shaft 34 rotates synchronously during lateral telescopic adjustment.

[0047] A bidirectional frustum 36, located on a rotating shaft 34, is fitted behind the arc-shaped closed-loop groove. A pusher is provided on the side of the bidirectional frustum 36. The pusher includes a support rod 37, the end of which passes through the peripheral wall of the sleeve 2 and is rolled with a ball bearing. A tray is provided on the peripheral wall of the support rod 37, and a return spring is fitted between the tray and the sleeve 2 on the support rod 37. The support rod 37 and the corresponding bidirectional frustum 36 are in rolling contact via a ball. When the rotating shaft 34 is adjusted laterally, the bidirectional frustum 36 moves accordingly. During adjustment, the ball bearing on the support rod 37 in the pusher contacts it, causing the support rod 37 to lift and compress the return spring.

[0048] Please see Figures 3-4 and Figures 10-13 In this embodiment of the invention, the cleaning mechanism 7 includes a sleeve 71, with multiple carrier plates 72 movably connected to the outer circumferential wall of the sleeve 71. A beveled ring 74 is connected to the inner wall of each carrier plate 72. Multiple cleaning components 73 for cleaning the inner wall of the pipe are connected to the outer wall of each carrier plate 72. The number of carrier plates 72 ranges from three to six; three are used in this embodiment. The number of cleaning components 73 ranges from three to nine; five are used in this embodiment.

[0049] A ring located on the outer shell wall of the sleeve 2 is rotatably connected to the rear of the rear transmission component 32. A sleeve 71 is fitted onto the rear transmission component 32 and the ring, and the sleeve 71 and the rear transmission component 32 are fixedly connected by screws. The stable assembly between the sleeve 71 and the transmission component 32 enables synchronous movement of the cleaning mechanism 7 during the operation of the drive mechanism 3.

[0050] Multiple rectangular grooves are formed along the circumferential direction on the outer circumferential wall of the sleeve 71, and multiple carrier plates 72 are slidably connected in the corresponding rectangular grooves. The sliding assembly of the carrier plates 72 in the rectangular grooves allows them to move in other directions when rotating with the sleeve 71. A rectangular through hole is formed on the bottom shell wall of each groove, and an annular groove is formed on the inner shell wall of the sleeve 71. Multiple spring telescopic rods 75 are arranged along the circumferential direction on the inner side wall of the annular groove. The output end of the spring telescopic rod 75 is installed on the corresponding side wall of the inclined ring 74, and the ball bearings on the bidirectional frustum 36 roll in contact with the inclined ring 74. When the support rod 37 is lifted, the ball bearings on it roll in contact with the inclined surface of the inclined ring 74, thereby causing the inclined ring 74 to move, stretching the spring telescopic rods 75. In turn, the displacement of the inclined ring 74 causes the multiple carrier plates 72 to adjust laterally in sync, thereby realizing the staggered movement of the cleaning components 73 set on them, further improving the cleaning effect on the inner wall of the ventilation duct.

[0051] The cleaning assembly 73 includes a retaining ring 731 fitted onto the sleeve 71. Multiple protrusions are provided on the inner ring shell wall of the retaining ring 731 along the circumferential direction. The side of the protrusions away from the retaining ring 731 is fixedly connected to the corresponding carrier plate 72.

[0052] Multiple housings 732 are arranged circumferentially on the outer circumferential wall of the fixed ring 731. A guide rod 733 is provided on the bottom inner wall of each housing 732, and a movable plate 734 is fitted onto the guide rod 733. A cleaning brush 735 is provided at the top of the movable plate 734, and a compression spring located on the guide rod 733 is fitted between the movable plate 734 and the bottom inner wall of the housing 732. During the rotation of the cleaning mechanism 7, the movable plates 734 in each cleaning assembly 73 extend outward under the centrifugal force generated by the rotation, causing the cleaning brush 735 to come close to the inner wall of the ventilation duct. Then, the cleaning brush 735 moves with the overall rotation of the cleaning mechanism 7, thus cleaning the inner wall of the ventilation duct. The ability of the cleaning brush 735 in the cleaning assembly 73 to extend outward allows for cleaning of ventilation ducts with different inner diameters, further improving the product's applicability.

[0053] Please see Figure 3 In this embodiment of the invention, the conveying pipe 10 includes an outer pipe 101 threadedly connected to the inner shell wall of a hollow pipe, and a conical sleeve 102 integrally disposed on the inner wall of the outer pipe 101. The front end of the conical sleeve 102 is threadedly connected to an inner pipe 103. The outer pipe 101 has multiple circumferential openings on its peripheral wall for wastewater passage, located on the rear side of the conical sleeve 102 and inside the rear end cover 9.

[0054] The inner pipe 103 of the conveying pipe 10 is used to collect and convey the dispersed flocculent matter, while the gap between the outer pipe 101 and the inner pipe 103 is used for the conveying of wastewater, thereby realizing the separate collection and conveying of different impurities, avoiding the mixing of the two, and further facilitating the subsequent collection and treatment.

[0055] Please see Figure 3 , Figure 5 and Figure 7 In this embodiment of the invention, the front transmission component 32 has an annular receiving groove on the outer circumferential wall of the sleeve 2. Multiple water-permeable holes for water passage are formed along the circumferential direction on the bottom shell wall of the annular receiving groove. The spray component 5 includes an annular shell slidably connected in the annular receiving groove. Multiple nozzles for water spraying are arranged along the circumferential direction on the outer shell wall of the annular shell. The front side of the splicing ring 6 is fixedly connected to the spray component 5 by bolts, and the rear side of the splicing ring 6 is installed on the front transmission component 32 by screws. When the transmission component 32 rotates, it drives the spray component 5 to move synchronously through the splicing ring 6, thereby spraying water resources in a rotating manner onto the inner wall of the ventilation duct, ensuring comprehensive cleaning of the inner wall of the ventilation duct.

[0056] An annular shell 4 is integrally formed on the inner shell wall of the sleeve 2, creating a water storage area between the sleeve 2 and the annular shell 4. This water storage area corresponds to the annular receiving groove. Holes are installed on the outer shell wall of the sleeve 2, through which a water inlet pipe is installed to guide the water storage area. A water supply pipe for connecting to an external water source is installed at the end of the water inlet pipe. The water supply pipe delivers water to the water storage area, where it enters the spray element 5 through permeable holes and is then sprayed out through the nozzle of the spray element 5, thus cleaning the inner wall of the ventilation duct.

[0057] The working principle of this invention is as follows: When it is necessary to clean the inside of the ventilation duct, a suitable front end cover 8 and a rear end cover 9 are selected according to the inner diameter of the duct to be cleaned, and the suitable front end cover 8 and rear end cover 9 are respectively installed on the rear end and front end of the base component 1. After the rear end cover 9 is assembled, the water supply pipe for water resource transportation is passed through the rear end cover 9 and connected to the water inlet pipe, while the other end of the delivery pipe 10 is set on an external negative pressure suction device, thereby realizing the applicability assembly and adjustment of the product.

[0058] After the product is assembled, it is inserted into the ventilation duct from the outlet. The operation of the negative pressure suction device creates a negative pressure suction state inside the hollow tube of the delivery pipe 10 and the base component 1. Therefore, after the product enters the ventilation duct, the negative pressure suction force directly sucks out fibrous materials and other debris inside the ventilation duct. The motor 311 of the drive component 31 in the drive mechanism 3 is started. The operation of the motor 311 causes the rotating shaft to move, synchronously driving the cam 312 and gear 313 to rotate.

[0059] During its rotation, the cam 312 adjusts the push rod to achieve a reciprocating pushing motion of the annular plate 33 in the dispersing assembly. As the annular plate 33 reciprocates, it synchronously drives the various rotating shafts 34 mounted on it. Each rotating shaft 34 reciprocates and extends in response to the reciprocating movement of the annular plate 33. During this extension and retraction adjustment, the rotating shafts 34 rotate simultaneously due to the cooperation of the support rod 35 and the moving block. This extension and rotation of the rotating shafts 34 drives the corresponding dispersing fan blades, thereby dispersing the fibrous material within the ventilation duct. As the product moves within the ventilation duct, the dispersing assembly disperses the fibrous material, and under the action of negative pressure suction, the dispersed debris passes through the base component 1 and enters the conveying pipe 10, where it is collected and conveyed by the inner pipe 103.

[0060] The gear 313 in the drive component 31 meshes with the gear ring 322 in each transmission component 32, thereby synchronously realizing the rotational movement of the two transmission components 32. During the rotation of the rear transmission component 32, it drives the cleaning mechanism 7 mounted on it to rotate as a whole. During the rotation of the cleaning mechanism 7, under the action of the centrifugal force, each moving plate 734 in the cleaning component 73 extends outward, stretching the corresponding compression spring. When the moving plate 734 extends outward, each cleaning brush 735 mounted on it moves synchronously, thereby bringing each cleaning brush 735 close to the inner wall of the ventilation duct, and brushing and cleaning the inner wall of the ventilation duct under the rotational movement of the cleaning mechanism 7.

[0061] When the rotating shaft 34 rotates telescopically, the bidirectional frustum 36 mounted on it reciprocates with the extension and retraction of the rotating shaft 34. During its movement, the bidirectional frustum 36 contacts the ball joint of the support rod 37 in the pushing member, thereby pushing it upward and compressing the return spring. When the support rod 37 moves upward, the ball joint at its top contacts the inclined ring 74 in the cleaning mechanism 7 and pushes it, causing it to move laterally. This causes the multiple cleaning components 73 mounted on each carrier plate 72 to move laterally in a synchronized manner, stretching the spring telescopic rod 75. When the rotating shaft 34 retracts and returns to its original position, the support rod 37 in the pushing member moves downward under the action of the return spring, while the inclined ring 74 returns to its original position under the action of the spring telescopic rod 75. This, in turn, causes the multiple cleaning components 73 mounted on each carrier plate 72 to return to their original position laterally, thereby achieving efficient cleaning of the inner wall of the ventilation duct.

[0062] During rotation, the front transmission component 32 synchronously drives the spray component 5 to rotate via the splicing ring 6. At this time, the water resources entering the water storage area through the water supply pipe enter the spray component 5 under the action of the water permeable holes, and are sprayed out by the nozzles on the spray component 5, thereby achieving water washing of the inner wall of the ventilation duct.

[0063] Due to the front cover 8, the fibrous material inside the ventilation duct is dispersed and directly sucked out. The cleaning mechanism 7 and the spray nozzle 5 then only clean the debris adhering to the inner wall of the ventilation duct. After the debris on the inner wall of the ventilation duct is cleaned, it mixes with water and then enters the rear cover 9 through the arc-shaped notch. It then passes through the notch on the outer pipe 101 of the conveying pipe 10 and enters the interior of the outer pipe 101, thereby achieving the collection and transport of wastewater.

[0064] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A negative pressure pipeline cleaning device, characterized in that: The system includes a base component (1), which is fitted with a sleeve (2). A drive mechanism (3) is installed on the sleeve (2). Spraying components (5) and cleaning mechanisms (7) are respectively installed on the front and rear sides of the drive mechanism (3) on the sleeve (2). The spraying components (5) and the drive mechanism (3) are spliced ​​together by splicing rings (6). A front cover (8) is provided at the rear end of the base component (1). A conveying pipe (10) is installed at the front end of the base component (1). A rear cover (9) is fitted on the conveying pipe (10). The rear end of the rear cover (9) is movably connected to the base component (1). The drive mechanism (3) is composed of a drive component (31), a transmission component (32) and a disintegration component. There are two transmission components (32), both of which are rotatably connected to the outer shell wall of the sleeve (2). The drive component (31) is located between the two transmission components (32). The disintegration component is located between the base component (1) and the sleeve (2) and is located behind the drive component (31). The drive component (31) provides driving force for the operation of the transmission component (32) and the disintegration component. The cleaning mechanism (7) includes a sleeve (71), a plurality of carrier plates (72) are movably connected to the outer circumferential wall of the sleeve (71), a beveled ring (74) is connected to the inner wall of the plurality of carrier plates (72), and a plurality of cleaning components (73) for cleaning the inner wall of the pipe are connected to the outer wall of the plurality of carrier plates (72). The dispersing assembly includes an annular plate (33) slidably connected to the outer shell wall of the base component (1). The front side of the annular plate (33) is fixedly connected to the push rod by bolts. Multiple rotating shafts (34) are rotatably connected to the rear shell wall of the annular plate (33) in the circumferential direction. The side of the rotating shaft (34) away from the annular plate (33) extends to the outside of the base component (1) and is equipped with dispersing fan blades. Each of the rotating shafts (34) has an arc-shaped closed-loop groove on its peripheral wall. A moving block is slidably connected in the arc-shaped closed-loop groove. A support rod (35) is fixedly connected to the moving block. The end of the support rod (35) away from the moving block is fixedly connected to the inner shell wall of the sleeve (2). The arc-shaped closed-loop groove is fitted with a bidirectional truncated cone (36) located on the rotating shaft (34). The side of the bidirectional truncated cone (36) is provided with a pusher, which includes a support rod (37). The end of the support rod (37) away from the bidirectional truncated cone (36) passes through the peripheral wall of the sleeve (2) and is connected with a ball. A tray is provided on the peripheral wall of the support rod (37). A return spring is fitted between the tray and the sleeve (2) and located on the support rod (37). The support rod (37) and the corresponding bidirectional truncated cone (36) are in rolling contact through a ball. The rear of the transmission component (32) is rotatably connected to a ring located on the outer shell wall of the sleeve (2). The sleeve (71) is sleeved on the rear of the transmission component (32) and the ring, and the sleeve (71) and the rear of the transmission component (32) are fixedly connected by screws. The outer circumferential wall of the sleeve (71) is provided with a plurality of rectangular grooves along the circumferential direction. The plurality of carrier plates (72) are slidably connected in the corresponding rectangular grooves. A rectangular through hole is provided on the bottom shell wall of each groove. An annular groove is provided on the inner circumferential shell wall of the sleeve (71). A plurality of spring telescopic rods (75) are provided on the inner side wall of the annular groove along the circumferential direction. The output end of the spring telescopic rod (75) is installed on the corresponding side wall of the inclined ring (74). The ball on the bidirectional frustum (36) is in rolling contact with the inclined ring (74). The cleaning assembly (73) includes a fixing ring (731) sleeved on a sleeve (71). Multiple protrusions are arranged along the circumferential direction on the inner ring shell wall of the fixing ring (731). The side of the protrusion away from the fixing ring (731) is fixedly connected to the corresponding carrier plate (72). Multiple sleeves (732) are arranged along the circumferential direction on the outer ring circumferential wall of the fixing ring (731). A guide rod (733) is arranged on the bottom inner wall of the sleeve (732). A movable plate (734) is sleeved on the guide rod (733). A cleaning brush plate (735) is arranged at the top of the movable plate (734). A compression spring located on the guide rod (733) is sleeved between the movable plate (734) and the bottom inner wall of the sleeve (732).

2. The negative pressure pipeline cleaning device according to claim 1, characterized in that, The base component (1) is composed of a hollow tube and an umbrella-shaped cover. The umbrella-shaped cover is integrally set at the rear end of the hollow tube. The front cover (8) is threaded to the rear shell wall of the umbrella-shaped cover. Multiple support plates are provided on the inner shell wall of the sleeve (2) along the circumferential direction. The side of the support plate away from the sleeve (2) is fixedly connected to the outer shell wall of the hollow tube. The rear end cover (9) and the rear end of the conveying pipe (10) are both threaded to the front end of the hollow tube. The rear end cover (9) is threaded to the outer shell wall of the hollow tube. Multiple arc-shaped notches for wastewater passage are opened on the rear shell wall of the rear end cover (9) along the circumferential direction.

3. The negative pressure pipeline cleaning device according to claim 2, characterized in that, The conveying pipe (10) includes an outer pipe (101) threaded to the inner shell wall of the hollow pipe. A conical sleeve (102) is integrally provided on the inner wall of the outer pipe (101). The front end of the conical sleeve (102) is threaded to the inner pipe (103). The outer pipe (101) has multiple openings along the circumferential direction for wastewater passage. The openings are located on the rear side of the conical sleeve (102) and inside the rear end cover (9).

4. The negative pressure pipeline cleaning device according to claim 1, characterized in that, The driving component (31) includes a base set on the top of the outer ring of the base component (1), a motor (311) is installed on the base, a rotating shaft is installed at the output end of the motor (311), the top end of the rotating shaft passes through the sleeve (2) and is equipped with a gear (313), a cam (312) is provided between the base component (1) and the sleeve (2) located on the rotating shaft, and a push rod is movably connected to the peripheral wall of the cam (312); The cam (312) has an annular groove on its peripheral wall, and a slider is slidably connected in the annular groove. The push rod is fixedly connected to the slider. The transmission component (32) includes a ring (321) rotatably connected to the outer circumferential wall of the sleeve (2). A toothed ring (322) is provided on the side wall of the ring (321), and both toothed rings (322) mesh with the gear (313) for transmission.

5. The negative pressure pipeline cleaning device according to claim 1, characterized in that, The front side of the transmission component (32) is provided with an annular receiving groove on the outer circumferential wall of the sleeve (2). Multiple water-permeable holes for water passage are provided on the bottom shell wall of the annular receiving groove along the circumferential direction. The spray component (5) includes an annular shell cover that is slidably connected in the annular receiving groove. Multiple nozzles for water spraying are provided on the outer shell wall of the annular shell cover along the circumferential direction. The front side of the splicing ring (6) is fixedly connected to the spray component (5) by bolts. The rear side of the splicing ring (6) is installed on the front transmission component (32) by screws.

6. The negative pressure pipeline cleaning device according to claim 5, characterized in that, An annular shell (4) is integrally provided on the inner shell wall of the sleeve (2). A water storage area for accommodating water resources is formed between the sleeve (2) and the annular shell (4). The water storage area corresponds to the annular accommodating groove. A hole is installed on the outer shell wall of the sleeve (2). An inlet pipe for conducting water storage area is provided in the hole. A water supply pipe for connecting an external water source is installed at the port of the inlet pipe.

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