A maintenance-free cam rotor pump sewage lifting device

Abstract

The present invention discloses a maintenance-free cam rotor pump sewage lifting device, comprising a base; a support frame connected to the upper surface of the base; a symmetrically arranged rotor pump body connected to the upper surface of the support frame; a suction pipe connected to one side of the rotor pump close to the middle of the support frame; a water collecting tank connected to a position on the upper surface of the bottom plate corresponding to the suction pipe; a feeding pipe connected to the side of the water collecting tank away from the suction pipe; and symmetrically arranged auxiliary pipes; during the lifting and lowering movement of the lifting arm, the lifting rod is driven to swing back and forth with one end of the lifting rod close to the lifting rod as the center of the circle, and during the reciprocating swing of the lifting rod, the lifting ring and the first rotating rod are driven to lift and lower back and forth, and finally the push plate and the cutting knife are driven to lift and lower back and forth, and the reciprocating lifting of the cutting knife can cut off the hair wrapped around the filter cartridge, thereby preventing the hair from clogging the filter cartridge, avoiding the need for frequent maintenance of the filter cartridge, reducing the operating steps, and improving work efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment and lifting, and specifically relates to a maintenance-free cam rotor pump sewage lifting device. Background Art

[0002] The cam rotor pump is a non-contact, rotary positive displacement pump, mainly composed of a circular arc pump housing, a rotor, front and rear plates, a mechanical seal and a synchronous gearbox. Its working principle is based on two or more precisely machined rotors rotating in the pump body, and the fluid is transported through the precise fit between the rotor and the pump body.

[0003] The sewage lifting device is a system consisting of a sewage pump, a water collection tank, a control device, and related pipe fittings and valves. It is used to lift and transport waste water below the sewer or far away from the municipal pipe network. It solves the problems existing in traditional collection pits, realizes the closed discharge of sewage, and avoids secondary pollution from sewage discharge from underground buildings.

[0004] Patent CN221999062U discloses a high-passivity subway sewage comprehensive treatment and lifting device. The cam rotor pump can rotate forward and reverse, which has a great effect on exhausting air in the pipe and can reduce the possibility of cavitation during use. However, in actual use, since a large number of passengers enter and exit the subway and use it every day, a large amount of sewage is generated in the toilets and washrooms in the subway station every day, and when people are active in the toilets and washrooms, hair residues will be generated. The hair enters the sewage through the drainage system. After the sewage containing hair enters the filter device, it is easy for the hair to be entangled in the filter device. After the hair is entangled in the filter device, it will cause the filter device to be blocked. The blockage of the filter device will cause the sewage to be unable to flow smoothly, and the solid matter in the sewage will be unable to pass through the filter device. The normal operation of the device requires frequent shutdown to remove the filter device for cleaning and maintenance, which adds more operating steps, consumes a lot of time, and reduces work efficiency. Summary of the invention

[0005] One of the purposes of the present invention is to solve the problem of hair entanglement in the filter cartridge in the prior art.

[0006] A second object of the present invention is to solve the problem of filter cartridges being clogged by incompletely crushed solids.

[0007] The third purpose of the present invention is to solve the inconvenience in removing and installing the filter cartridge, and to provide a maintenance-free cam rotor pump sewage lifting device.

[0008] The purpose of the present invention can be achieved through the following technical solutions:

[0009] A maintenance-free cam rotor pump sewage lifting device, comprising a base; a support frame connected to the upper surface of the base; a symmetrically arranged rotor pump body connected to the upper surface of the support frame; a feed pipe connected to one side of the rotor pump close to the middle of the support frame; a water collecting box connected to a position on the upper surface of the bottom plate corresponding to the feed pipe; a feeding pipe connected to a side of the water collecting box away from the feed pipe; symmetrically arranged auxiliary pipes connected to the positions of the water collecting box corresponding to the feed pipe, and the feeding pipe is flange-connected to the auxiliary pipe; a positioning sleeve is connected to the middle of the water collecting box, a filter cartridge is arranged in the positioning sleeve, a first rotating rod is arranged in the filter cartridge, and the first rotating rod Multiple push plates are arranged on the outside, and a cutting knife is connected to the side of the push plate close to the inner wall of the filter cylinder; a second rotating rod is arranged on the upper end of the first rotating rod, a worm is connected to the middle part of the outer side of the second rotating rod, a worm wheel is meshed on the outer side of the worm, and round blocks are eccentrically connected to the middle parts of both sides of the worm wheel, a lifting arm is rotatably connected to the outer side of the round block, and the lifting rod is rotatably connected to the end of the lifting arm away from the round block, a lifting ring is connected to the position of the lifting rod at the upper end of the first rotating rod corresponding to the position of the lifting rod, one end of the lifting rod is rotatably connected to the lifting ring, a bracket is connected to the upper surface of the water collecting tank corresponding to the end of the lifting rod away from the lifting ring, and the end of the lifting rod away from the lifting ring is rotatably connected to the bracket.

[0010] Preferably, a movable groove is opened at the upper end of the first rotating rod corresponding to the position of the second rotating rod, and the second rotating rod is slidably connected in the movable groove. A plurality of second positioning rods are connected to the outer side of the second rotating rod. A second positioning groove is opened at the position of the first rotating rod corresponding to the second positioning rod, and the second positioning rod is slidably connected in the second positioning groove.

[0011] Preferably, the length of the push plate and the cutting knife is shorter than the length of the filter cartridge, and the spacing distance between the cutting knife and the filter cartridge is 0.1 mm-0.3 mm.

[0012] Preferably, a symmetrically arranged first positioning rod is connected to a position on the outside of the filter cartridge away from the connecting pipe, and a symmetrically arranged first positioning groove is formed on the positioning sleeve at a position corresponding to the first positioning rod, and the first positioning rod is slidably connected in the first positioning groove.

[0013] Preferably, the lifting arm is rotatably connected to the middle part of the lifting rod, the middle part of the bracket corresponding to the worm gear is connected to symmetrically arranged support rods, and the worm gear is rotatably connected between the support rods.

[0014] Preferably, a crushing box is connected to the position of the feeding pipe inside the water collecting box, the feeding pipe is connected to the crushing box, and two crushing rollers are rotatably connected inside the crushing box, the upper end of one of the crushing rollers passes through the water collecting box and is connected to the driving tooth, and the upper end of the other crushing roller passes through the water collecting box and is connected to the driven tooth, the driving tooth is meshed with the driven tooth, and the upper surface of the driving tooth is connected to the motor.

[0015] Preferably, a connecting pipe is connected between the crushing box and the positioning sleeve, a discharge port is provided at a position of the positioning sleeve away from the feeding pipe, and a feeding port is provided at a position of the filter cartridge corresponding to the connecting pipe.

[0016] Preferably, the upper end of the second rotating rod is connected to the first sprocket, the first sprocket is connected to the bracket through a bearing, a connecting rod is connected to the middle of the upper surface of the driven tooth, the upper end of the connecting rod is connected to the second sprocket, and a chain is meshed between the first sprocket and the outer side of the second sprocket.

[0017] Preferably, a mounting tube is connected to the position corresponding to the filter cartridge below the water collecting tank, a first ring is connected to the outside of the mounting tube, a second ring is arranged below the first ring, clamps are arranged on the outside of the first ring and the second ring, and a fastening rod is threadedly connected to the end of the clamp.

[0018] Preferably, a sealing ring is provided between the first circular ring and the second circular ring, a support block is connected to the middle of the second circular ring, and the lower surface of the filter cartridge is in contact with the upper surface of the support block.

[0019] Beneficial effects of the present invention:

[0020] The present invention drives the worm wheel to rotate by the second rotating rod, and the rotation of the worm wheel drives the worm to rotate, and the rotation of the worm drives the eccentrically arranged round block to rotate. During the rotation of the round block, the movable position of the lifting rod is restricted by the bracket and the lifting ring, so that the movable position of the lifting arm is also restricted, so that the lifting arm can only perform lifting movements. During the lifting movement of the lifting arm, the lifting rod is driven to swing back and forth with one end of the lifting rod close to it as the center of the circle. During the reciprocating swing of the lifting rod, the lifting ring and the first rotating rod are driven to lift and reciprocate, and finally the push plate and the cutting knife are driven to lift and reciprocate. The reciprocating lifting of the cutting knife can cut off the hair wrapped around the filter cartridge, thereby preventing the hair from clogging the filter cartridge, avoiding the need for frequent maintenance of the filter cartridge, reducing the operating steps, and improving work efficiency.

[0021] The present invention enables the second rotating rod to rotate so that the second rotating rod is slidably connected to the first rotating rod. With the cooperation of the second positioning rod and the second positioning groove, the rotation of the second rotating rod will drive the first rotating rod to rotate synchronously. The rotation of the first rotating rod will drive the push plate and the cutting knife to rotate, and with the cooperation of the worm gear, the push plate and the cutting knife will be lifted and lowered reciprocatingly. During the rotation of the push plate, sewage, incompletely crushed solids and qualified crushed solids are pushed, so that the filter cartridge can be prevented from being blocked by uncrushed solids. The cutting knife rotates during the lifting process, so as to cut hair at different positions, and effectively prevent the filter cartridge from being blocked by hair.

[0022] When the filter cartridge needs to be taken out from the water collecting box, the clamp is unscrewed from the clamp by unscrewing the fastening rod from the clamp. After unscrewing, the clamp loses its fixation. The clamp is removed from the outer sides of the first and second rings by dragging the second ring and rotating the clamp. The second ring is slowly moved downward, and the filter cartridge will drop under the action of its own gravity, so that the filter cartridge can be taken out from the water collecting box, and the completely crushed solids in the filter cartridge can be cleaned. It is more convenient to take out the filter cartridge, and the filter cartridge is arranged to be taken out from the bottom of the water collecting box. It will fall under the action of its own gravity, which is more convenient and labor-saving to take out the filter cartridge. After the filter cartridge is cleaned, the first positioning rod on the outer side of the filter cartridge is aligned with the first positioning groove of the positioning sleeve and inserted, and the feeding port is aligned with the position of the connecting pipe. After the filter cartridge is sent into the water collecting box, the second ring is aligned with the first ring, and the clamp is clamped on the outer sides of the first and second rings. The position of the first ring can be fixed by tightening the fastening rod, and the filter cartridge can be supported by the support block, which is more convenient to install the filter cartridge.

[0023] The present invention drives the connecting rod to rotate by the rotation of the driven teeth, and the rotation of the connecting rod drives the second sprocket to rotate. With the cooperation of the chain, the first sprocket rotates, and the rotation of the first sprocket drives the second rotating rod to rotate, thereby achieving the purposes of hair cutting and pushing sewage, incompletely crushed solids and qualified crushed solids, preventing the filter cartridge from being blocked, and improving the continuity and consistency of the device. Synchronous control can be carried out by only starting the motor, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 is a stereogram of the present invention;

[0026] Figure 2 It is a three-dimensional diagram of the water collecting tank in the present invention;

[0027] Figure 3 is a cross-sectional view of the water collecting tank in the present invention;

[0028] Figure 4 It is a three-dimensional diagram of the crushing box in the present invention;

[0029] Figure 5 It is a three-dimensional diagram of the worm gear in the present invention;

[0030] Figure 6 It is a stereoscopic view of the positioning sleeve in the present invention;

[0031] Figure 7 is a three-dimensional diagram of the filter cartridge of the present invention;

[0032] Figure 8 It is a three-dimensional diagram of the second rotating rod in the present invention;

[0033] Fig. 9 It is an exploded view of the first circular ring in the present invention.

[0034] In the figure: 1, base; 2, crushing box; 3, connecting pipe; 4, first rotating rod; 5, mounting pipe; 11, support frame; 12, rotor pump body; 13, discharge pipe; 14, central pipe; 15, extraction pipe; 16, water collecting box; 17, feeding pipe; 18, auxiliary pipe;

[0035] 21. Crushing roller; 22. Driving gear; 23. Driven gear; 24. Motor; 25. Support plate;

[0036] 31. Positioning sleeve; 32. Discharge port; 33. Filter cartridge; 34. Feed port; 35. First positioning rod; 36. First positioning groove;

[0037] 401, push plate; 402, cutting knife; 41, second rotating rod; 411, movable groove; 412, second positioning rod; 413, second positioning groove; 42, worm; 421, worm wheel; 422, round block; 423, lifting arm; 424, lifting rod; 425, lifting ring; 426, bracket; 427, supporting rod; 43, first sprocket; 431, connecting rod; 432, second sprocket; 433, chain;

[0038] 51. First circular ring; 52. Second circular ring; 53. Sealing ring; 54. Support block; 55. Clamp; 56. Fastening rod. DETAILED DESCRIPTION

[0039] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1 - Fig. 9 As shown, a maintenance-free cam rotor pump sewage lifting device includes a base 1 for supporting a water collecting tank 16 and a support frame 11.

[0041] A support frame 11 is connected to the upper surface of the base 1 , and the support frame 11 is used to support a rotor pump body 12 .

[0042] A symmetrically arranged rotor pump body 12 is connected to the upper surface of the support frame 11 , and the rotor pump body 12 is used for conveying sewage.

[0043] The two rotor pump bodies 12 are connected to a discharge pipe 13 on one side close to the side of the support frame 11, and the ends of the two discharge pipes 13 away from the rotor pump bodies 12 are flange-connected to a central pipe 14. Through the cooperation between the discharge pipe 13 and the central pipe 14, after the rotor pump body 12 draws the sewage out of the water collecting tank 16, it will enter the central pipe 14 for centralized treatment.

[0044] The two rotor pumps are connected to a pumping pipe 15 on one side close to the middle of the support frame 11, and a water collecting tank 16 is connected to the position of the upper surface of the bottom plate corresponding to the pumping pipe 15. Through the cooperation of the pumping pipe 15, the sewage in the water collecting tank 16 can be pumped out.

[0045] A feeding pipe 17 is connected to a side of the water collecting tank 16 away from the extraction pipe 15 , and is used to add untreated fluid into the water collecting tank 16 .

[0046] A symmetrically arranged auxiliary pipe 18 is connected to the water collecting tank 16 at a position corresponding to the extraction pipe 15 , the feeding pipe 17 is flange-connected to the auxiliary pipe 18 , and the extraction pipe cooperates with the auxiliary pipe 18 to extract the sewage in the water collecting tank 16 .

[0047] A crushing box 2 is connected to the position of the water collecting box 16 corresponding to the feeding pipe 17, and the feeding pipe 17 is connected to the crushing box 2. Two crushing rollers 21 are rotatably connected in the crushing box 2 for crushing the solids in the sewage.

[0048] The upper end of one of the crushing rollers 21 passes through the water collecting box 16 and is connected to the driving teeth 22, and the upper end of the other crushing roller 21 passes through the water collecting box 16 and is connected to the driven teeth 23. The driving teeth 22 are meshed with the driven teeth 23. Through the cooperation of the driving teeth 22 and the driven teeth 23, the two crushing rollers 21 can rotate synchronously, so that the solids in the sewage can be crushed.

[0049] A motor 24 is connected to the upper surface of the active tooth 22 , and a support plate 25 is connected to the upper surface of the water collecting box 16 at a position corresponding to the motor 24 . The motor 24 is mounted on the support plate 25 . The motor 24 is used to drive the active tooth 22 to rotate, and the support plate 25 is used to install and fix the motor 24 .

[0050] During specific use, by starting the motor 24, the motor 24 drives the active teeth 22 to rotate, and the rotation of the active teeth 22 drives the driven teeth 23 to rotate. Through the cooperation of the active teeth 22 and the driven teeth 23, the two crushing rollers 21 rotate in opposite directions to each other. After the sewage is added into the water collecting box 16 through the feeding pipe 17, it will first enter the crushing box 2. Through the rotation of the two crushing rollers 21, the solids in the sewage can be crushed.

[0051] A positioning sleeve 31 is connected to the middle of the water collecting box 16 , and a connecting pipe 3 is connected between the crushing box 2 and the positioning sleeve 31 , through which sewage and crushed solids can be added into the positioning sleeve 31 .

[0052] A discharge port 32 is provided at a position of the positioning sleeve 31 away from the feeding pipe 17 for discharging filtered sewage and crushed solids.

[0053] A filter cartridge 33 is disposed in the positioning sleeve 31 for filtering incompletely crushed solids.

[0054] A feeding port 34 is provided at a position of the filter cartridge 33 corresponding to the connecting pipe 3 , and sewage and crushed solids can be added into the filter cartridge 33 through the feeding port 34 .

[0055] A symmetrically arranged first positioning rod 35 is connected to a position on the outside of the filter cartridge 33 away from the connecting pipe 3. A symmetrically arranged first positioning groove 36 is opened on the positioning sleeve 31 at a position corresponding to the first positioning rod 35. The first positioning rod 35 is slidably connected in the first positioning groove 36. The position of the filter cartridge 33 can be limited by the cooperation between the first positioning rod 35 and the first positioning groove 36 to prevent the filter cartridge 33 from rotating in the positioning sleeve 31, which would cause the feeding port 34 to not correspond to the connecting pipe 3.

[0056] During specific use, when sewage is added into the water collecting tank 16 through the feeding pipe 17, the sewage will first enter the crushing box 2, and the solids in the sewage will be crushed by two crushing rollers 21. The sewage and the crushed solids will enter the filter cartridge 33 through the feeding pipe 17 and the feeding port 34. Under the filtration of the filter cartridge 33, the incompletely crushed solids will remain in the filter cartridge 33, and the qualified crushed solids and sewage will be discharged into the bottom of the water collecting tank 16 through the discharge port 32.

[0057] A first rotating rod 4 is provided inside the filter cartridge 33, and a plurality of push plates 401 are provided outside the first rotating rod 4 for pushing the sewage, incompletely crushed solids and qualified crushed solids in the filter cartridge 33 so that the sewage and qualified crushed solids can be discharged smoothly to prevent the filter cartridge 33 from being blocked.

[0058] A cutting knife 402 is connected to one side of the push plate 401 close to the inner wall of the filter cartridge 33 for cutting hair wound around the filter cartridge 33 to prevent the filter cartridge 33 from being blocked.

[0059] The length of the push plate 401 and the cutting knife 402 is shorter than the length of the filter cartridge 33 . This arrangement ensures that the push plate 401 and the cutting knife 402 can be lifted and lowered in the filter cartridge 33 .

[0060] The distance between the cutting knife 402 and the filter cartridge 33 is 0.1 mm to 0.3 mm. This arrangement ensures that the hair wound around the filter cartridge 33 can be cut off.

[0061] A second rotating rod 41 is provided at the upper end of the first rotating rod 4, and a movable groove 411 is opened at the position of the upper end of the first rotating rod 4 corresponding to the second rotating rod 41, and the second rotating rod 41 is slidably connected in the movable groove 411, and a plurality of second positioning rods 412 are connected to the outer side of the second rotating rod 41, and a second positioning groove 413 is opened at the position of the first rotating rod 4 corresponding to the second positioning rod 412, and the second positioning rod 412 is slidably connected in the second positioning groove 413. Through the cooperation between the second positioning rod 412 and the second positioning groove 413, the second rotating rod 41 can also drive the first rotating rod 4 to rotate while the first rotating rod 4 is raised or lowered.

[0062] A worm 42 is connected to the middle part of the outer side of the second rotating rod 41, and a worm wheel 421 is meshed on the outer side of the worm 42. By utilizing the self-locking function between the worm wheel 421 and the worm 42, the cutting knife 402 can be adjusted to a position away from the bottom of the water collecting tank 16 when taking out the filter cartridge 33, thereby effectively preventing the staff from contacting the cutting knife 402 and protecting the staff from being scratched.

[0063] Round blocks 422 are eccentrically connected to the middle of both sides of the worm gear 421. By eccentrically arranging the round blocks 422, the lifting arm 423 can be lifted and lowered and the lifting rod 424 can be rotated.

[0064] A lifting arm 423 is rotatably connected to the outer side of the round block 422, and one end of the lifting arm 423 away from the round block 422 is rotatably connected to a lifting rod 424. The lifting arm 423 is rotatably connected to the middle part of the lifting rod 424. A lifting ring 425 is connected to the position of the lifting rod 424 at the upper end of the first rotating rod 4. One end of the lifting rod 424 is rotatably connected to the lifting ring 425. The lifting ring 425 is used to assist the first rotating rod 4 in lifting and lowering.

[0065] A bracket 426 is connected to the end of the lifting rod 424 away from the lifting ring 425 on the upper surface of the water collecting tank 16. The end of the lifting rod 424 away from the lifting ring 425 is rotatably connected to the bracket 426. The bracket 426 is used to limit the position of the lifting rod 424 and the lifting arm 423, and to support the second rotating rod 41.

[0066] In specific use, the second rotating rod 41 drives the worm wheel 421 to rotate, and the rotation of the worm wheel 421 drives the worm 42 to rotate, and the rotation of the worm 42 drives the eccentrically arranged round block 422 to rotate. During the rotation of the round block 422, the movable position of the lifting rod 424 is restricted by the bracket 426 and the lifting ring 425, so that the movable position of the lifting arm 423 is also restricted, so that the lifting arm 423 can only perform lifting movement. During the lifting movement of the lifting arm 423, the lifting rod 424 is driven to reciprocate with one end of the lifting rod 424 as the center of the circle. During the reciprocating swing of the lifting rod 424, the lifting ring 425 and the first rotating rod 4 are driven to reciprocate and lift, and finally the push plate 401 and the cutting knife 402 are driven to reciprocate and lift. The reciprocating lifting of the cutting knife 402 can cut off the hair wrapped around the filter cartridge 33, thereby preventing the hair from clogging the filter cartridge 33, avoiding the need for frequent maintenance of the filter cartridge 33, reducing the operation steps, and improving work efficiency.

[0067] By rotating the second rotating rod 41, the second rotating rod 41 is slidably connected to the first rotating rod 4. With the cooperation of the second positioning rod 412 and the second positioning groove 413, the rotation of the second rotating rod 41 will drive the first rotating rod 4 to rotate synchronously. The rotation of the first rotating rod 4 will drive the push plate 401 and the cutting knife 402 to rotate, and with the cooperation of the worm gear 421 and the worm 42, the push plate 401 and the cutting knife 402 will be reciprocated and lifted. During the rotation of the push plate 401, sewage, incompletely crushed solids and qualified crushed solids will be pushed, which can prevent the filter cartridge 33 from being blocked by uncrushed solids. The cutting knife 402 rotates during the lifting process, which can cut hair at different positions, and can effectively prevent the hair from clogging the filter cartridge 33.

[0068] The bracket 426 is connected to a symmetrically arranged support rod 427 corresponding to the middle of the worm gear 421 . The worm gear 421 is rotatably connected between the support rods 427 . The support rods 427 are used to support the worm gear 421 and fix the position of the worm gear 421 .

[0069] The upper end of the second rotating rod 41 is connected to the first sprocket 43, and the first sprocket 43 is connected to the bracket 426 through a bearing. A connecting rod 431 is connected to the middle of the upper surface of the driven tooth 23, and the upper end of the connecting rod 431 is connected to the second sprocket 432. A chain 433 is meshed on the outer sides of the first sprocket 43 and the second sprocket 432.

[0070] During specific use, the driven tooth 23 rotates to drive the connecting rod 431 to rotate, and the connecting rod 431 rotates to drive the second sprocket 432 to rotate. With the cooperation of the chain 433, the first sprocket 43 rotates, and the first sprocket 43 rotates to drive the second rotating rod 41 to rotate, thereby achieving the purpose of cutting hair and pushing sewage, incompletely crushed solids and qualified crushed solids, preventing the filter cartridge 33 from being blocked, and improving the continuity and consistency of the device. It only needs to start the motor 24 to perform synchronous control, and the operation is simple and convenient.

[0071] A mounting tube 5 is connected to the position of the filter cartridge 33 below the water collecting box 16 , a first ring 51 is connected to the outside of the mounting tube 5 , a second ring 52 is arranged below the first ring 51 , and the first ring 51 cooperates with the second ring 52 to assist in sealing the mounting tube 5 .

[0072] A sealing ring 53 is provided between the first circular ring 51 and the second circular ring 52 to enhance the sealing between the first circular ring 51 and the second circular ring 52 .

[0073] A support block 54 is connected to the middle of the second circular ring 52 . The lower surface of the filter cartridge 33 contacts the upper surface of the support block 54 . The support block 54 is used to support the filter cartridge 33 .

[0074] A clamp 55 is provided outside the first circular ring 51 and the second circular ring 52. A fastening rod 56 is threadedly connected to the end of the clamp 55. The clamp 55 cooperates with the fastening rod 56 to fix the position of the second circular ring 52, thereby achieving sealing.

[0075] In specific use, when it is necessary to take out the filter cartridge 33 from the water collecting box 16, the fastening rod 56 is unscrewed from the clamp 55. After unscrewing, the clamp 55 loses its fixation, and the clamp 55 is removed from the outside of the first ring 51 and the second ring 52 by dragging the second ring 52 and rotating the clamp 55. The second ring 52 is slowly moved downward, and the filter cartridge 33 will drop under the action of its own gravity, so that the filter cartridge 33 can be taken out of the water collecting box 16, and the solids that are not completely crushed in the filter cartridge 33 can be cleaned. It is more convenient to take out the filter cartridge 33, and the filter cartridge 33 is set to be taken out from the bottom of the water collecting box 16. The filter cartridge 33 will fall under the action of its own gravity, which is more convenient and labor-saving when taking out the filter cartridge 33.

[0076] After cleaning the filter cartridge 33, align the first positioning rod 35 on the outside of the filter cartridge 33 with the first positioning groove 36 of the positioning sleeve 31 and insert it, and align the feeding port 34 with the position of the connecting pipe 3. After the filter cartridge 33 is sent into the water collecting box 16, the second ring 52 is aligned with the first ring 51, and the clamp 55 is clamped on the outside of the first ring 51 and the second ring 52. By tightening the fastening rod 56, the position of the first ring 51 can be fixed, and the filter cartridge 33 can be supported by the support block 54, which is convenient for installing the filter cartridge 33.

[0077] Working principle: by starting the cam rotor pump body 12 and the motor 24, the cam rotor pump draws the sewage into the water collecting tank 16 through the feeding pipe 17, the sewage will first enter the crushing box 2, the crushing roller 21 will crush the solids in the sewage, the sewage and the crushed solids will enter the filter cartridge 33, the filter cartridge 33 will filter the incompletely crushed solids in the filter cartridge 33, the cutting knife 402 will cut off the hair wrapped around the filter cartridge 33, the sewage and the crushed solids will fall to the bottom of the water collecting tank 16 through the discharge port 32, through the cooperation of the auxiliary pipe 18 and the extraction pipe 15, the sewage and the crushed solids will be under the action of the cam rotor pump, through the discharge pipe 13 into the central pipe 14, and finally completely lift the work.

[0078] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0079] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A maintenance-free cam rotor pump sewage lifting device, comprising a base (1); A support frame (11) connected to the upper surface of the base (1); A symmetrically arranged rotor pump body (12) is connected to the upper surface of the support frame (11); A material extraction pipe (15) is connected to one side of the rotor pump close to the middle of the support frame (11); A water collecting tank (16) connected to the upper surface of the bottom plate at a position corresponding to the extraction pipe (15); A feeding pipe (17) connected to a side of the water collecting tank (16) away from the extraction pipe (15); A symmetrically arranged auxiliary pipe (18) is connected to the position of the water collecting box (16) corresponding to the extraction pipe (15), and the feeding pipe (17) is flange-connected to the auxiliary pipe (18); The water collecting box (16) is characterized in that a positioning sleeve (31) is connected to the middle part, a filter cartridge (33) is arranged in the positioning sleeve (31), a first rotating rod (4) is arranged in the filter cartridge (33), a plurality of push plates (401) are arranged on the outside of the first rotating rod (4), and a cutting knife (402) is connected to one side of the push plate (401) close to the inner wall of the filter cartridge (33); A second rotating rod (41) is arranged at the upper end of the first rotating rod (4), a worm (42) is connected to the middle of the outer side of the second rotating rod (41), a worm wheel (421) is meshed on the outer side of the worm (42), round blocks (422) are eccentrically connected to the middle of both sides of the worm wheel (421), a lifting arm (423) is rotatably connected to the outer side of the round block (422), an end of the lifting arm (423) away from the round block (422) is rotatably connected to a lifting rod (424), a lifting ring (425) is connected to the upper end of the first rotating rod (4) at a position corresponding to the lifting rod (424), one end of the lifting rod (424) is rotatably connected to the lifting ring (425), a bracket (426) is connected to the upper surface of the water collecting tank (16) corresponding to the end of the lifting rod (424) away from the lifting ring (425), and one end of the lifting rod (424) away from the lifting ring (425) is rotatably connected to the bracket (426).

2. A maintenance-free cam rotor pump sewage lifting device according to claim 1, characterized in that: A movable groove (411) is provided at the upper end of the first rotating rod (4) at a position corresponding to the second rotating rod (41), the second rotating rod (41) is slidably connected in the movable groove (411), a plurality of second positioning rods (412) are connected to the outer side of the second rotating rod (41), a second positioning groove (413) is provided at a position of the first rotating rod (4) corresponding to the second positioning rod (412), and the second positioning rod (412) is slidably connected in the second positioning groove (413).

3. A maintenance-free cam rotor pump sewage lifting device according to claim 2, characterized in that: The lengths of the push plate (401) and the cutting knife (402) are shorter than the length of the filter cartridge (33), and the spacing distance between the cutting knife (402) and the filter cartridge (33) is in the range of 0.1 mm to 0.3 mm.

4. A maintenance-free cam rotor pump sewage lifting device according to claim 3, characterized in that: A symmetrically arranged first positioning rod (35) is connected to a position on the outside of the filter cartridge (33) away from the connecting pipe (3); a symmetrically arranged first positioning groove (36) is formed on the positioning sleeve (31) at a position corresponding to the first positioning rod (35); and the first positioning rod (35) is slidably connected in the first positioning groove (36).

5. A maintenance-free cam rotor pump sewage lifting device according to claim 4, characterized in that: The lifting arm (423) is rotatably connected to the middle of the lifting rod (424); the bracket (426) is connected to symmetrically arranged support rods (427) corresponding to the middle of the worm wheel (421); and the worm wheel (421) is rotatably connected between the support rods (427).

6. A maintenance-free cam rotor pump sewage lifting device according to claim 5, characterized in that: A crushing box (2) is connected to a position corresponding to the feeding pipe (17) inside the water collecting box (16), the feeding pipe (17) is connected to the crushing box (2), and two crushing rollers (21) are rotatably connected inside the crushing box (2), wherein the upper end of one crushing roller (21) passes through the water collecting box (16) and is connected to a driving tooth (22), and the upper end of the other crushing roller (21) passes through the water collecting box (16) and is connected to a driven tooth (23), the driving tooth (22) meshes with the driven tooth (23), and the upper surface of the driving tooth (22) is connected to a motor (24).

7. A maintenance-free cam rotor pump sewage lifting device according to claim 6, characterized in that: A connecting pipe (3) is connected between the crushing box (2) and the positioning sleeve (31); a discharge port (32) is provided at a position of the positioning sleeve (31) away from the feeding pipe (17); and a feeding port (34) is provided at a position of the filter cartridge (33) corresponding to the connecting pipe (3).

8. A maintenance-free cam rotor pump sewage lifting device according to claim 7, characterized in that: The upper end of the second rotating rod (41) is connected to a first sprocket (43), the first sprocket (43) is connected to a bracket (426) via a bearing, a connecting rod (431) is connected to the middle of the upper surface of the driven tooth (23), the upper end of the connecting rod (431) is connected to a second sprocket (432), and a chain (433) is meshed between the outer sides of the first sprocket (43) and the second sprocket (432).

9. A maintenance-free cam rotor pump sewage lifting device according to claim 8, characterized in that: A mounting tube (5) is connected to a position below the water collecting box (16) corresponding to the filter cartridge (33); a first circular ring (51) is connected to the outside of the mounting tube (5); a second circular ring (52) is arranged below the first circular ring (51); clamps (55) are arranged on the outside of the first circular ring (51) and the second circular ring (52); a fastening rod (56) is threadedly connected to the end of the clamp (55).

10. A maintenance-free cam rotor pump sewage lifting device according to claim 9, characterized in that: A sealing ring (53) is provided between the first circular ring (51) and the second circular ring (52); a support block (54) is connected to the middle of the second circular ring (52); and the lower surface of the filter cartridge (33) is in contact with the upper surface of the support block (54).

Images