Negative pressure pipeline cleaning device

Abstract

The invention discloses a negative pressure pipeline cleaning device, and belongs to the technical field of pipeline cleaning equipment. In order to solve the problems that when an inner cavity of an existing ventilation pipeline is cleaned, operation is troublesome, and sundries fly away, the following technical scheme is provided, the ventilation pipeline cleaning device comprises a basic part, the basic part is sleeved with a sleeve, a driving mechanism is installed on the sleeve, and the front side and the rear side of the driving mechanism are provided with a spraying part and a cleaning mechanism which are located on the sleeve respectively. The front end cover and the driving mechanism are arranged on the basic part, the conveying pipe is connected with the external negative pressure suction equipment, the sweeping mechanism and the spraying part are matched, scattering and suction of floccules in the pipeline and sweeping and water washing treatment of the inner wall of the pipeline can be achieved at a time when sundries in the pipeline are cleaned, the cleaning steps are reduced, and the cleaning efficiency is improved. And the tail end cover is matched, so that the sundries can be efficiently collected, the damage of the sundries to a human body is reduced, and the burden of treating the discharged sundries in the later period by workers is relieved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline cleaning equipment, in particular to a negative pressure pipeline cleaning device. Background Art

[0002] Negative pressure pipes refer to pipes that maintain a pressure lower than atmospheric pressure inside, so that the liquid or gas inside the pipe can be sucked in without leaking. The applications of negative pressure pipes mainly include drainage negative pressure pipes, ventilation negative pressure pipes, industrial negative pressure pipes and medical negative pressure pipes. Among them, a large amount of dust and other debris will adhere to the inside of the ventilation negative pressure pipe during long-term use. The long-term accumulation of debris will form flocs inside the ventilation negative pressure pipe, which will cause blockage problems for the ventilation negative pressure pipe, and then it needs to be cleaned and maintained.

[0003] At present, for the cleaning work inside the ventilation negative pressure duct, it is necessary to first break up the flocs inside the duct, and use negative pressure suction equipment to realize suction cleaning of the broken flocs in the duct. After the flocs are processed, the electric brush head is inserted into the interior of the duct to brush and clean the inner wall of the duct, and the negative pressure suction equipment is set to realize efficient cleaning of the debris in the duct. The cleaning process not only requires multi-step operation, but also because the negative pressure suction equipment cannot guarantee the sealing of the duct outlet, the debris discharged from the duct during cleaning will fly at the duct outlet, which is easy to cause harm to the staff. The scattered debris also adds a burden to the subsequent cleaning. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a negative pressure pipeline cleaning device, which arranges a front end cover and a driving mechanism on a base member, and then connects an external negative pressure suction device through a conveying pipe, cooperates with a cleaning mechanism and an injection member, and can achieve the dispersion and suction of flocs inside the pipeline, and the cleaning and water washing of the inner wall of the pipeline at one time when cleaning the debris in the pipeline, thereby reducing the cleaning steps, and cooperates with the tail end cover to achieve efficient collection of debris, reduce the damage of debris to the human body and reduce the burden of the staff on the later processing of the discharged debris, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A negative pressure pipeline cleaning device comprises a base member, a sleeve is provided on the outside of the base member, a driving mechanism is installed on the sleeve, and a spraying member and a cleaning mechanism located on the sleeve are respectively provided on the front and rear sides of the driving mechanism, wherein the spraying member and the driving mechanism are spliced ​​by a splicing ring, a front end cover is provided at the rear end of the base member, a delivery pipe is installed at the front end of the base member, a rear end cover is provided on the delivery pipe, and the rear end of the rear end cover is movably connected to the base member; the driving mechanism is composed of a driving member, a transmission member and a scattering assembly, wherein the transmission member includes two, both of which are rotatably connected to the outer ring shell wall of the sleeve, the driving member is located between the two transmission members, the scattering assembly is between the base member and the sleeve, and is located behind the driving member, and the driving member provides driving force for the operation of the transmission member and the scattering assembly; the cleaning mechanism comprises a sleeve, a plurality of carrier plates are movably connected to the outer ring peripheral wall of the sleeve, a bevel ring is commonly connected to the inner wall of the plurality of carrier plates, and a plurality of cleaning assemblies for cleaning the inner wall of the pipeline are commonly connected to the outer wall of the plurality of carrier plates.

[0006] As a further solution of the present invention, the basic member is composed of a hollow tube and an umbrella-shaped cover, wherein the umbrella-shaped cover is integrally arranged 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, a plurality of support plates are arranged on the inner circle 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 circle 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, wherein the rear end cover is threadedly connected to the outer circle shell wall of the hollow tube, and a plurality of arc-shaped notches for the passage of wastewater are opened on the rear side shell wall of the rear end cover along the circumferential direction.

[0007] As a further solution of the present invention, the conveying pipe includes an outer tube threadedly connected to the inner ring shell wall of the hollow tube, a conical sleeve is integrally provided on the inner wall of the outer tube, and the front end of the conical sleeve is threadedly connected to the inner tube, wherein a plurality of notches for the passage of wastewater are opened along the circumferential direction on the circumferential wall of the outer tube, and the notches are located on the rear side of the conical sleeve and inside the rear end cover.

[0008] As a further solution of the present invention, the driving member includes a base arranged on the top of the outer ring of the base member, a motor is installed on the base, a rotating shaft is installed at the output end of the motor, the top of the rotating shaft passes through a sleeve and is installed with a gear, a cam located on the rotating shaft is provided between the base member and the sleeve, and a push rod is movably connected to the peripheral wall of the cam; an annular groove is provided on the peripheral wall of the cam, a slider is slidably connected in the annular groove, and the push rod is fixedly connected to the slider; the transmission member includes a ring body rotatably connected to the peripheral wall of the outer ring of the sleeve, a gear ring is provided on the side wall of the ring body, and the two gear rings are meshed with the gears for transmission.

[0009] As a further scheme of the present invention, the scattering assembly includes an annular plate slidably connected to the outer ring shell wall of the base member, the front side of the annular plate and the push rod are fixedly connected by bolts, and a plurality of rotating shafts are rotatably connected on the rear side shell wall of the annular plate in a circumferential direction, and the rotating shaft extends to the outside of the base member away from the side of the annular plate and is equipped with scattering fan blades; an arc-shaped closed-loop groove is opened on the circumferential wall of each rotating shaft, a moving block is slidably connected in the arc-shaped closed-loop groove, a support rod is fixedly connected to the moving block, and one end of the support rod away from the moving block is fixedly connected to the inner ring shell wall of the sleeve; a two-way cone located on the rotating shaft is sleeved at the rear of the arc-shaped closed-loop groove, and a push-pull piece is provided on the side of the two-way cone, the push-pull piece includes a support rod, one end of the support rod away from the two-way cone penetrates the circumferential wall of the sleeve, and is rollingly connected with a ball, a tray is provided on the circumferential wall of the support rod, a reset spring located on the support rod is sleeved between the tray and the sleeve, and the support rod and the corresponding two-way cone are in rolling contact through the ball.

[0010] As a further scheme of the present invention, the rear of the rear transmission member is rotatably connected with a circular ring located on the outer ring shell wall of the sleeve, the sleeve is sleeved on the rear transmission member and the circular ring, and the sleeve and the rear transmission member are fixedly connected by screws; a plurality of rectangular grooves are opened on the outer ring circumferential direction of the sleeve, a plurality of carrier plates are respectively slidably connected to the corresponding rectangular grooves, a rectangular through hole is opened on the bottom shell wall of each groove, an annular groove is opened on the inner ring shell wall of the sleeve, a plurality of spring telescopic rods are arranged on the side inner wall of the annular groove along the circumferential direction, the output end of the spring telescopic rod is installed on the corresponding side wall of the bevel ring, and the ball on the bidirectional truncated table is in rolling contact with the bevel ring.

[0011] As a further solution of the present invention, the cleaning assembly includes a fixed ring mounted on the sleeve, a plurality of protrusions are arranged on the inner ring shell wall of the fixed ring along the circumferential direction, and the sides of the protrusions away from the fixed ring are respectively fixedly connected to the corresponding carrier plates, a plurality of sleeves are arranged on the outer ring circumferential direction, a guide rod is arranged on the bottom inner wall of the sleeve, a movable plate is mounted on the guide rod, a cleaning brush plate is arranged on the top of the movable plate, and an extrusion spring located on the guide rod is mounted between the movable plate and the bottom inner wall of the sleeve.

[0012] As a further solution of the present invention, an annular receiving groove located on the outer circumferential wall of the sleeve is opened on the front side of the front transmission member, and a plurality of water-permeable holes for the passage of water resources are opened along the circumferential direction on the bottom shell wall of the annular receiving groove. The injection member includes an annular shell cover slidably connected to the annular receiving groove, and a plurality of nozzles for water resource injection are arranged along the circumferential direction on the outer shell wall of the annular shell cover. The front side of the splicing ring is fixedly connected to the injection member by bolts, and the rear side of the splicing ring is installed on the front transmission member by screws.

[0013] As a further solution 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, and the water storage area corresponds to the annular containing groove. Holes are installed on the outer shell wall of the sleeve, and a water inlet pipe that conducts to the water storage area is arranged in the hole, and a water supply pipe for connecting to an external water source is installed at the port of the water inlet pipe.

[0014] Compared with the existing technology, The beneficial effects of the present invention are: 1. By setting a front cover and a driving mechanism on the base part, and then connecting an external negative pressure suction device through a conveying pipe, and cooperating with a cleaning mechanism and an injection part, the flocculent inside the pipeline can be dispersed and sucked, and the inner wall of the pipeline can be cleaned and washed at one time when cleaning the debris in the pipeline, thereby reducing the cleaning steps, improving the efficiency of cleaning the inside of the pipeline, and reducing the burden on the staff.

[0015] 2. The front end cover can be selectively assembled according to the inner diameter of the pipeline. The setting of the front end cover is used to ensure that the driving mechanism can conveniently collect the flocs in the pipeline when breaking up and sucking, and avoid the broken flocs being directly discharged from the outlet of the pipeline under the action of suction.

[0016] 3. The tail cover can be installed on the base according to the inner diameter of the pipe, so as to achieve efficient collection of debris, reduce the harm of debris to the human body and reduce the burden of the staff in the subsequent processing of the discharged debris.

[0017] 4. The cleaning mechanism rotates with the operation of the driving mechanism. The centrifugal force generated by its rotation causes the cleaning brush thereon to rotate and diffuse inside the pipe, thereby brushing and cleaning the inner wall of the pipe with different inner diameters.

[0018] 5. The injection part rotates with the operation of the driving mechanism, and 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 inside of the pipe, and the water resources will mix the debris generated by the operation of the cleaning mechanism, thereby achieving the dust reduction effect on the debris on the one hand, and facilitating the collection and discharge of the debris on the other hand.

[0019] 6. When the driving mechanism rotates, the two-way round table realizes the lifting and lowering of the push member, and the push member contacts the inclined ring in the cleaning mechanism to push it up. With the cooperation of the spring telescopic rod, the reciprocating lateral displacement of the carrier plate can be realized, so that the cleaning component in the cleaning mechanism can also move laterally reciprocatingly during the rotational motion, further improving its cleaning effect on the inner wall of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A schematic diagram of the three-dimensional structure of a negative pressure pipeline cleaning device Figure 1 ; Figure 2 A schematic diagram of the three-dimensional structure of a negative pressure pipeline cleaning device Figure 2 ; Figure 3 for Figure 1 A schematic diagram of a longitudinal cross-sectional structure; Figure 4 for Figure 3 A schematic diagram of the enlarged local structure at A; Figure 5 for Figure 3 Schematic diagram of the structure viewed from above; Figure 6 for Figure 3 Schematic diagram of the basic parts and drive mechanism structure Figure 1 ; Figure 7 for Figure 3 Schematic diagram of the basic parts and drive mechanism structure Figure 2 ; Figure 8 for Figure 7 A schematic diagram of the enlarged local structure at B; Fig. 9 for Figure 7 A schematic diagram of the driving component structure; Fig.10 for Figure 1 Schematic diagram of the cleaning mechanism structure; Fig.11 for Fig.10 A schematic diagram of the enlarged local structure at C; Fig.12 for Fig.10 A magnified schematic diagram of the local structure at D; Fig.13 for Fig.10 Schematic diagram of the cleaning component structure.

[0021] In the figure: 1. base member; 2. sleeve; 3. drive mechanism; 31. drive member; 311. motor; 312. cam; 313. gear; 32. transmission member; 321. ring body; 322. gear ring; 33. ring plate; 34. rotating shaft; 35. support rod; 36. two-way frustum; 37. support rod; 4. annular shell; 5. injection member; 6. splicing ring; 7. cleaning mechanism; 71. sleeve; 72. carrier plate; 73. cleaning assembly; 731. fixed ring; 732. sleeve shell; 733. guide rod; 734. movable plate; 735. cleaning brush plate; 74. bevel ring; 75. spring telescopic rod; 8. front end cover; 9. rear end cover; 10. delivery pipe; 101. outer pipe; 102. conical sleeve; 103. inner pipe. DETAILED DESCRIPTION

[0022] See also Figure 1-Figure 4 In an embodiment of the present invention, a negative pressure pipe cleaning device includes a base member 1, which is composed of a hollow tube and an umbrella-shaped cover, wherein the umbrella-shaped cover is integrally arranged at the rear end of the hollow tube. The setting of the umbrella-shaped cover facilitates the gathering of flocs in the hollow tube when the interior of the ventilation duct is suctioned and cleaned. A sleeve 2 is provided on the outside of the base member 1, and a driving mechanism 3 is installed on the sleeve 2. A plurality of support plates are provided on the inner ring shell wall of the sleeve 2 along the circumferential direction, and the side of the support plate away from the sleeve 2 is fixedly connected to the outer ring shell wall of the hollow tube. The sleeve 2 is stably mounted on the base member 1 by the setting of the support plate. The front and rear sides of the driving mechanism 3 are respectively provided with an injection member 5 and a cleaning mechanism 7 located on the sleeve 2, wherein the injection member 5 and the driving mechanism 3 are spliced ​​by a splicing ring 6. The operation of the driving mechanism 3 drives the injection member 5 and the cleaning mechanism 7 to move, thereby realizing the cleaning of the inner wall of the ventilation duct. The rear end of the base member 1 is provided with a front cover 8, the front end of the base member 1 is provided with a delivery pipe 10, the delivery pipe 10 is sleeved with a rear cover 9, and the rear end of the rear cover 9 is movably connected to the base member 1. The front cover 8 is used to collect floccules in the ventilation duct when cleaning, and the rear cover 9 is used to collect wastewater mixed with debris generated after the cleaning mechanism 7 and the injection member 5 are operated.

[0023] The front cover 8 is threadedly connected to the rear end shell wall of the umbrella cover, and the rear end of the rear cover 9 and the rear end of the delivery pipe 10 are both threadedly connected to the front end of the hollow pipe. Among them, the rear end cover 9 is threadedly connected to the outer ring shell wall of the hollow pipe, and a plurality of arc-shaped notches for the passage of wastewater are opened along the circumferential direction on the rear side shell wall of the rear end cover 9. Then the front end cover 8, the rear end cover 9 and the delivery pipe 10 can be conveniently disassembled and assembled, and can also be replaced according to actual needs, so as to realize the cleaning of ventilation ducts with different inner diameters. The setting of the arc-shaped notch can collect wastewater mixed with debris. The peripheral walls of the front end cover 8 and the rear end cover 9 are both provided with arc grooves, and the arc grooves are movably connected with moving rollers through pin shafts, and then when the product enters the interior of the ventilation duct, the setting of the moving rollers can ensure the smooth and stable movement of the product inside the ventilation duct. The front end cover 8 is threadedly connected to the rear end shell wall of the umbrella cover, and the rear ends of the rear end cover 9 and the delivery pipe 10 are both threadedly connected to the front end of the hollow pipe. Among them, the rear end cover 9 is threadedly connected to the outer shell wall of the hollow tube, and a plurality of arc-shaped notches for the passage of wastewater are provided on the rear side shell wall of the rear end cover 9 in the circumferential direction. Therefore, the front end cover 8, the rear end cover 9 and the conveying pipe 10 can be conveniently disassembled and assembled, and can also be replaced according to actual needs, so as to realize the cleaning of ventilation ducts with different inner diameters. The setting of the arc-shaped notch can collect wastewater mixed with debris. Arc-shaped grooves are provided on the peripheral walls of the front end cover 8 and the rear end cover 9, and moving rollers are movably connected in the arc-shaped grooves through pin shafts. When the product enters the interior of the ventilation duct, the setting of the moving rollers can ensure the smooth and stable movement of the product inside the ventilation duct.

[0024] See also Figure 3 and Figure 6-Figure 9 In the embodiment of the present invention, the driving mechanism 3 is composed of a driving member 31, a transmission member 32 and a breaking up assembly. Among them, there are two transmission members 32, both of which are rotatably connected to the outer shell wall of the sleeve 2. The driving member 31 is located between the two transmission members 32, and the breaking up assembly is located between the base member 1 and the sleeve 2, and is located behind the driving member 31. The driving member 31 provides driving force for the operation of the transmission member 32 and the breaking up assembly. The operation of the driving member 31 enables the two transmission members 32 to move and drives the breaking up assembly to operate, thereby realizing the cleaning work inside the ventilation duct.

[0025] The driving member 31 includes a base disposed on the top of the outer ring of the base member 1, and a motor 311 is mounted on the base. The motor 311 has various models and can be selected according to the form of the product. In this embodiment, a micro motor is used to meet the assembly requirements on the product.

[0026] The output end of the motor 311 is provided with a rotating shaft, the top end of which passes through the sleeve 2 and is provided with a gear 313. A cam 312 located on the rotating shaft is provided between the base member 1 and the sleeve 2, and 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.

[0027] An annular groove is formed on the peripheral wall of the cam 312, a slider is slidably connected in the annular groove, and a push rod is fixedly connected to the slider.

[0028] The transmission member 32 includes a ring body 321 rotatably connected to the outer peripheral wall of the sleeve 2. A toothed ring 322 is provided on the side wall of the ring body 321, and the two toothed rings 322 are meshed with the gear 313 for transmission. During the rotation of the toothed ring 322, the corresponding ring body 321 is moved by the setting of the toothed ring 322, thereby realizing the movement of the transmission member 32. Since the two toothed rings 322 are located on both sides of the gear 313, the rotation directions of the two transmission members 32 are opposite, thereby further improving the cleaning effect of the inside of the ventilation duct.

[0029] The disintegration assembly includes an annular plate 33 slidably connected to the outer ring shell wall of the base member 1, and 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 motion with the cooperation of the slider, thereby realizing the reciprocating push-pull adjustment of the annular plate 33. A plurality of slide grooves are provided on the peripheral wall of the base member 1 along the circumferential direction, and a sliding block is slidably connected in the slide groove. 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.

[0030] A plurality of rotating shafts 34 are connected to the rear shell wall of the annular plate 33 in a circumferential direction. The rotating shafts 34 extend to the outside of the base member 1 from one side of the annular plate 33 and are provided with scattering blades. The rotating shafts 34 are connected to the annular plate 33 through bearings, thereby ensuring the rotating effect when the rotating shafts 34 move laterally with the reciprocating displacement of the annular plate 33.

[0031] Each rotating shaft 34 has an arc-shaped closed-loop groove on its circumferential wall, in which a moving block is slidably connected. A support rod 35 is fixedly connected to the moving block, and one end of the support rod 35 away from the moving block is fixedly connected to the inner shell wall of the sleeve 2. The support rod 35, the moving block and the arc-shaped closed-loop groove cooperate to ensure that the rotating shaft 34 performs synchronous rotation during the lateral telescopic adjustment.

[0032] A bidirectional truncated cone 36 located on the rotating shaft 34 is sleeved at the rear of the arc-shaped closed-loop groove, and a push-pull piece is provided on the side of the bidirectional truncated cone 36. The push-pull piece includes a strut 37, and one end of the strut 37 away from the bidirectional truncated cone 36 penetrates the peripheral wall of the sleeve 2 and is rollingly connected with a ball. A tray is provided on the peripheral wall of the strut 37, and a reset spring located on the strut 37 is sleeved between the tray and the sleeve 2. The strut 37 and the corresponding bidirectional truncated cone 36 are in rolling contact through the ball. When the rotating shaft 34 is adjusted for lateral displacement, the bidirectional truncated cone 36 moves accordingly. When the bidirectional truncated cone 36 is adjusted, the ball on the strut 37 in the push-pull piece contacts it, thereby propping up the strut 37 and compressing the reset spring.

[0033] See also Figure 3-Figure 4 and Figure 10-13 In the embodiment of the present invention, the cleaning mechanism 7 includes a sleeve 71, and a plurality of carrier plates 72 are movably connected to the outer peripheral wall of the sleeve 71. A bevel ring 74 is commonly connected to the inner walls of the plurality of carrier plates 72. A plurality of cleaning components 73 for cleaning the inner wall of the pipeline are commonly connected to the outer walls of the plurality of carrier plates 72. The number of carrier plates 72 is set in a range of three to six, and three are used in the present embodiment. The number of cleaning components 73 is set in a range of three to nine, and five are used in the present embodiment.

[0034] The rear side transmission member 32 is rotatably connected to a circular ring located on the outer shell wall of the sleeve 2. The sleeve 71 is sleeved on the rear side transmission member 32 and the circular ring, and the sleeve 71 and the rear side transmission member 32 are fixedly connected by screws. The stable assembly between the sleeve 71 and the transmission member 32 can realize the movement of the cleaning mechanism 7 synchronously when the driving mechanism 3 is running.

[0035] A plurality of rectangular grooves are provided on the outer circumferential wall of the sleeve 71 along the circumferential direction, and a plurality of carrier plates 72 are respectively slidably connected in the corresponding rectangular grooves. The sliding assembly of the carrier plates 72 in the rectangular grooves enables them to move in other directions when rotating with the sleeve 71. A rectangular through hole is provided on the bottom shell wall of each groove, and an annular groove is provided on the inner shell wall of the sleeve 71. A plurality of spring telescopic rods 75 are provided on the inner wall of the side edge 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 bevel ring 74, and the ball bearings on the two-way truncated cone 36 are in rolling contact with the bevel ring 74. When the support rod 37 is lifted, the ball bearings on it are in rolling contact with the inclined surface of the bevel ring 74, thereby causing the bevel ring 74 to move, stretching the spring telescopic rod 75, and then through the displacement of the bevel ring 74, multiple carrier plates 72 are synchronously adjusted laterally, so as to realize the dislocation movement of the cleaning assembly 73 provided thereon, and further improve the cleaning effect of the inner wall of the ventilation duct.

[0036] The cleaning assembly 73 includes a fixing ring 731 sleeved on the sleeve 71 , and a plurality of protrusions are arranged on the inner shell wall of the fixing ring 731 along the circumferential direction, and the sides of the protrusions away from the fixing ring 731 are fixedly connected to the corresponding carrier plates 72 .

[0037] A plurality of sleeves 732 are arranged on the outer circumferential wall of the fixed ring 731 along the circumferential direction, a guide rod 733 is arranged on the bottom inner wall of the sleeve 732, and a movable plate 734 is sleeved on the guide rod 733. A cleaning brush plate 735 is arranged on the top of the movable plate 734, and an extrusion spring located on the guide rod 733 is sleeved between the movable plate 734 and the bottom inner wall of the sleeve 732. During the rotation of the cleaning mechanism 7, the movable plates 734 in each cleaning assembly 73 are extended outward by the centrifugal force generated by the rotation, so that the cleaning brush plates 735 are close to the inner wall of the ventilation duct, and then the cleaning brush plates 735 move with the overall rotation of the cleaning mechanism 7 to clean the inner wall of the ventilation duct. When the cleaning brush plates 735 in the cleaning assembly 73 can be extended outward, ventilation ducts with different inner diameters can be cleaned, further improving the applicability of the product.

[0038] See also Figure 3 In the embodiment of the present invention, the delivery pipe 10 includes an outer pipe 101 threadedly connected to the inner shell wall of the hollow pipe, and 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 threadedly connected to the inner pipe 103. Among them, a plurality of notches for the passage of wastewater are opened on the peripheral wall of the outer pipe 101 along the circumferential direction, and the notches are located at the rear side of the conical sleeve 102 and inside the rear end cover 9.

[0039] The setting in the inner tube 103 of the conveying pipe 10 is used to collect and convey the broken flocs, while the gap between the outer tube 101 and the inner tube 103 is used to convey wastewater, thereby realizing the separate collection and conveyance of different sundries, avoiding the mutual mixing of the two, and further facilitating the subsequent collection and processing.

[0040] See also Figure 3 , Figure 5 and Figure 7 In the embodiment of the present invention, an annular receiving groove located on the outer circumferential wall of the sleeve 2 is provided at the front side of the front transmission member 32, and a plurality of water-permeable holes for the passage of water resources are provided on the bottom shell wall of the annular receiving groove in the circumferential direction. The injection member 5 includes an annular shell cover slidably connected to the annular receiving groove, and a plurality of nozzles for water injection are provided on the outer shell wall of the annular shell cover in the circumferential direction. The front side of the splicing ring 6 is fixedly connected to the injection member 5 by bolts, and the rear side of the splicing ring 6 is installed on the front transmission member 32 by screws. When the transmission member 32 rotates, it drives the injection member 5 to move synchronously through the splicing ring 6, and then performs rotational spraying of water resources on the inner wall of the ventilation duct, thereby ensuring the comprehensiveness of cleaning the inner wall of the ventilation duct.

[0041] An annular housing 4 is integrally provided on the inner shell wall of the sleeve 2, and a water storage area for accommodating water resources is formed between the sleeve 2 and the annular housing 4, and the water storage area corresponds to the annular accommodating groove. Holes are installed on the outer shell wall of the sleeve 2, and a water inlet pipe for conducting the water storage area is installed in the hole, and a water pipe for connecting an external water source is installed at the port of the water inlet pipe. The water pipe transports water resources to the water storage area, and the water resources in the water storage area enter the injection member 5 through the water permeable hole, and then sprayed out from the nozzle of the injection member 5 to achieve the cleaning of the inner wall of the ventilation duct.

[0042] The working principle of the present invention is: when it is necessary to clean the inside of the ventilation duct, according to the inner diameter of the duct to be cleaned, select the appropriate front cover 8 and rear cover 9, and respectively load the appropriate front cover 8 and rear cover 9 on the rear end and front end of the base member 1. After the rear cover 9 is assembled, the water pipe for water resource transportation passes through the rear cover 9 and is connected to the water inlet pipe, and the other end of the delivery pipe 10 is set on the external negative pressure suction device, so as to realize the applicability assembly adjustment of the product.

[0043] When the product is assembled, extend the product from the outlet of the ventilation duct into the interior of the ventilation duct. The operation of the negative pressure suction device causes the inside of the hollow tube in the conveying pipe 10 and the base member 1 to be in a negative pressure suction state, and then after the product enters the interior of the ventilation duct, the negative pressure suction force directly sucks the floccules and other debris in the ventilation duct. Start the motor 311 of the driving member 31 in the driving mechanism 3, and the operation of the motor 311 causes the rotating shaft to move, synchronously driving the cam 312 and the gear 313 to rotate.

[0044] During the rotation process, the cam 312 adjusts the push rod to realize the reciprocating movement of the annular plate 33 in the scattering assembly. When the annular plate 33 is in reciprocating motion, its synchronization drives the various rotating shafts 34 loaded thereon to move. Each rotating shaft 34 performs reciprocating telescopic adjustment with the reciprocating movement of the annular plate 33, and when the rotating shaft 34 is in telescopic adjustment, due to the cooperation of the support rod 35 and the moving block, the rotating shaft 34 performs rotational movement while telescopic movement. The telescopic rotation movement of the rotating shaft 34 drives the corresponding scattering blade movement, thereby scattering the flocs in the ventilation duct. As the product moves in the ventilation duct, the scattering assembly scatters the flocs in the ventilation duct, and under the action of negative pressure suction, the scattered debris passes through the base member 1 and enters the conveying pipe 10, and is collected and transported by the inner pipe 103 in the conveying pipe 10.

[0045] The gear 313 in the driving member 31 is meshed with the gear ring 322 in each transmission member 32, thereby realizing the rotational movement of the two transmission members 32 synchronously. The transmission member 32 on the rear side drives the cleaning mechanism 7 loaded thereon to rotate as a whole during the rotation process. During the rotation process of the cleaning mechanism 7, each cleaning component 73 on it is under the action of the rotating centrifugal force, so that each moving plate 734 in the cleaning component 73 is extended outward, stretching the corresponding extrusion spring. When the moving plate 734 is extended outward, each cleaning brush plate 735 assembled thereon moves synchronously, so that each cleaning brush plate 735 approaches the inner wall of the ventilation duct, and brushes and cleans the inner wall of the ventilation duct under the rotation of the cleaning mechanism 7.

[0046] When the rotating shaft 34 is telescopically rotating, the bidirectional truncated cone 36 arranged thereon reciprocates with the extension and contraction of the rotating shaft 34. During the movement, the bidirectional truncated cone 36 contacts the ball of the support rod 37 in the push-pull member, thereby pushing it, causing it to move upward and compressing the reset spring. When the support rod 37 moves upward, the ball at the top thereof contacts the bevel ring 74 in the cleaning mechanism 7, and pushes it, causing it to move laterally, and synchronously drives the multiple cleaning components 73 loaded thereon to synchronously adjust laterally through each carrier plate 72, stretching the spring telescopic rod 75. When the rotating shaft 34 is telescopically reset, the support rod 37 in the push-pull member moves downward under the action of the reset spring, and the bevel ring 74 is reset under the action of the spring telescopic rod 75, and then drives the multiple cleaning components 73 thereon to reset laterally through each carrier plate 72, thereby realizing efficient cleaning of the inner wall of the ventilation duct.

[0047] The transmission member 32 on the front side drives the injection member 5 to rotate synchronously through the splicing ring 6 during the rotation process. At this time, the water resources entering the water storage area from the water pipe enter the injection member 5 under the action of the water permeable hole, and are sprayed out by the nozzle on the injection member 5, thereby realizing water washing of the inner wall of the ventilation duct.

[0048] Due to the setting of the front cover 8, the floccules in the ventilation duct are directly sucked out after being broken up, and the cleaning mechanism 7 and the injection member 5 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, the debris is mixed with water resources, and then enters the rear cover 9 from the arc-shaped notch on the rear cover 9, and then enters the inner part of the outer tube 101 through the notch on the outer tube 101 in the conveying pipe 10, thereby realizing the collection and transportation of wastewater.

[0049] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A negative pressure pipeline cleaning device, characterized in that: The invention comprises a base member (1), the base member (1) is provided with a sleeve (2) on the outside, a driving mechanism (3) is installed on the sleeve (2), and a spraying member (5) and a cleaning mechanism (7) located on the sleeve (2) are respectively provided on the front and rear sides of the driving mechanism (3), wherein the spraying member (5) and the driving mechanism (3) are spliced ​​together via a splicing ring (6), a front end cover (8) is provided at the rear end of the base member (1), a conveying pipe (10) is installed at the front end of the base member (1), a rear end cover (9) is sleeved on the conveying pipe (10), and the rear end of the rear end cover (9) is movably connected to the base member (1); the driving mechanism (3) comprises a driving member (31), a transmission member (32) and a scattering assembly The invention is composed of two transmission members (32), both of which are rotatably connected to the outer shell wall of the sleeve (2), the driving member (31) is located between the two transmission members (32), the scattering assembly is located between the base member (1) and the sleeve (2) and behind the driving member (31), and the driving member (31) provides driving force for the operation of the transmission member (32) and the scattering assembly; the cleaning mechanism (7) comprises a sleeve (71), a plurality of carrier plates (72) are movably connected to the outer peripheral wall of the sleeve (71), a bevel ring (74) is commonly connected to the inner walls of the plurality of carrier plates (72), and a plurality of cleaning assemblies (73) for cleaning the inner wall of the pipeline are commonly connected to the outer walls of the plurality of carrier plates (72).

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

3. A negative pressure pipeline cleaning device according to claim 2, characterized in that: The delivery pipe (10) comprises an outer pipe (101) threadedly connected to the inner shell wall of the hollow pipe, a conical sleeve (102) being integrally provided on the inner wall of the outer pipe (101), and an inner pipe (103) being threadedly connected to the front end of the conical sleeve (102), wherein a plurality of notches for passing wastewater are provided on the peripheral wall of the outer pipe (101) along the circumferential direction, the notches being located at the rear side of the conical sleeve (102) and inside the rear end cover (9).

4. A negative pressure pipeline cleaning device according to claim 1, characterized in that: The driving member (31) comprises a base arranged at the top of the outer ring of the base member (1), a motor (311) being mounted on the base, a rotating shaft being mounted on the output end of the motor (311), the top end of the rotating shaft passing through the sleeve (2) and being mounted with a gear (313), a cam (312) being arranged on the rotating shaft between the base member (1) and the sleeve (2), a push rod being movably connected to the peripheral wall of the cam (312); an annular groove being arranged on the peripheral wall of the cam (312), a slider being slidably connected in the annular groove, and the push rod being fixedly connected to the slider; the transmission member (32) comprises a ring body (321) rotatably connected to the peripheral wall of the outer ring of the sleeve (2), a toothed ring (322) being arranged on the side wall of the ring body (321), and both the two toothed rings (322) are meshed with the gear (313) for transmission.

5. A negative pressure pipeline cleaning device according to claim 1, characterized in that: The scattering assembly comprises an annular plate (33) slidably connected to the outer ring shell wall of the base member (1); the front side of the annular plate (33) is fixedly connected to the push rod by bolts; a plurality of rotating shafts (34) are rotatably connected to the rear side shell wall of the annular plate (33) in a circumferential direction; the rotating shafts (34) extend to the outside of the base member (1) away from the annular plate (33) and are equipped with scattering blades; an arc-shaped closed-loop groove is formed on the circumferential wall of each rotating shaft (34); 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 support rod (35) is away from the moving block One end of the block is fixedly connected to the inner ring shell wall of the sleeve (2); a bidirectional truncated cone (36) located on the rotating shaft (34) is sleeved behind the arc-shaped closed-loop groove, and a push-pull member is provided on the side of the bidirectional truncated cone (36), and the push-pull member includes a support rod (37), and one end of the support rod (37) away from the bidirectional truncated cone (36) penetrates the peripheral wall of the sleeve (2) and is rollingly connected with a ball bearing, and a tray is provided on the peripheral wall of the support rod (37), and a return spring located on the support rod (37) is sleeved between the tray and the sleeve (2), and the support rod (37) and the corresponding bidirectional truncated cone (36) are in rolling contact through the ball.

6. A negative pressure pipeline cleaning device according to claim 5, characterized in that: The rear side of the transmission member (32) is rotatably connected to a circular ring located on the outer ring shell wall of the sleeve (2); the sleeve (71) is sleeved on the transmission member (32) and the circular ring, and the sleeve (71) and the transmission member (32) are fixedly connected by screws; a plurality of rectangular grooves are provided on the outer ring circumferential direction of the sleeve (71); a plurality of carrier plates (72) are respectively slidably connected to 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 ring shell wall of the sleeve (71); a plurality of spring telescopic rods (75) are provided on the side inner wall of the annular groove along the circumferential direction; the output ends of the spring telescopic rods (75) are mounted on the corresponding side walls of the bevel ring (74); and the balls on the bidirectional truncated table (36) are in rolling contact with the bevel ring (74).

7. A negative pressure pipeline cleaning device according to claim 6, characterized in that: The cleaning assembly (73) comprises a fixed ring (731) sleeved on the sleeve (71); a plurality of protrusions are arranged on the inner ring wall of the fixed ring (731) along the circumferential direction; the sides of the protrusions away from the fixed ring (731) are respectively fixedly connected to the corresponding carrier plates (72); a plurality of sleeves (732) are arranged on the outer ring wall of the fixed ring (731) along the circumferential direction; 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 on the top of the movable plate (734); and an extrusion spring located on the guide rod (733) is sleeved between the movable plate (734) and the bottom inner wall of the sleeve (732).

8. A negative pressure pipeline cleaning device according to claim 1, characterized in that: The front side of the transmission member (32) is provided with an annular receiving groove on the outer peripheral wall of the sleeve (2), and a plurality of water-permeable holes for the passage of water resources are provided on the bottom shell wall of the annular receiving groove in a circumferential direction. The injection member (5) comprises an annular shell cover slidably connected to the annular receiving groove, and a plurality of nozzles for injecting water resources are provided on the outer shell wall of the annular shell cover in a circumferential direction. The front side of the splicing ring (6) is fixedly connected to the injection member (5) by bolts, and the rear side of the splicing ring (6) is mounted on the transmission member (32) on the front side by screws.

9. A negative pressure pipeline cleaning device according to claim 8, 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 corresponding to the annular accommodating groove, a hole is installed on the outer shell wall of the sleeve (2), a water inlet pipe connected to the water storage area is arranged in the hole, and a water delivery pipe for connecting to an external water source is installed at the port of the water inlet pipe.

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