A chemical centrifugal pump with pollution cleaning function

Abstract

The present invention relates to the technical field of centrifugal pumps. The present invention discloses a centrifugal pump for chemical industry with a cleaning function, including a pump body, a liquid inlet chamber located in the pump body, a liquid inlet and a liquid outlet connected to the liquid inlet chamber formed on the pump body, and also including: an impeller assembly, the impeller assembly is located in the liquid inlet chamber, a motor 1 is installed on the pump body, the impeller assembly is installed at the output end of the motor 1, the impeller assembly includes an impeller and a centrifugal rod installed on the impeller; a rubber cartridge assembly, the inner wall of the liquid inlet chamber is arranged in a closed-end manner along the direction close to the liquid inlet, and the rubber cartridge assembly is adapted to the inner wall of the liquid inlet chamber. The rubber cartridge assembly works, so that its cross-sectional area becomes smaller, and in order to ensure the flow rate of liquid sent from the liquid outlet, the power of the motor 1 is increased, the motor 1 drives the impeller assembly to rotate at a high speed, the centrifugal rod on the blade extends, and the inner wall of the liquid inlet chamber is scraped and brushed, the attachment area of ​​the dirt attached to the rubber cartridge assembly becomes smaller, the liquid flow rate passing through the rubber cartridge assembly becomes faster, and the attached dirt therein is flushed.

Description

Technical Field

[0001] The invention relates to the technical field of centrifugal pumps, in particular to a chemical centrifugal pump with a pollution cleaning function. Background Art

[0002] Chinese patent document CN117167340A discloses a cleaning device for a chemical pump, comprising a power input component, an extension component is provided at the front end of the power input component, an impeller component is provided at the front end of the extension component, a pump casing component is sleeved on the outer side of the impeller component, power is input from the power input component, transmitted at the extension component and causes the impeller component to start running in the pump casing component, under the centrifugal action of the impeller component, fluid chemical raw materials are sucked into and pumped out of the pump casing component, the power input component comprises a shaft casing, an end sleeve is fixedly sleeved on the shaft casing, a first bearing is sleeved on the inner wall of the end sleeve, an input shaft is movably sleeved on the inner ring of the first bearing, a second bearing is movably sleeved on the front end of the shaft body of the input shaft, the outer ring of the second bearing is sleeved on the front end inner wall of the shaft casing, a mounting plate is fixedly installed on the front end of the shaft casing, a support seat is fixedly installed on the bottom end of the shaft casing, the cleaning direction of the cleaning device for the chemical pump can be changed, and the cleaning effect is good. In paragraph

[0030] of the specification, it is disclosed that "the electric cylinder pushes the central axis forward and drives the impeller forward so that the brush strip contacts the inner wall of the pump casing and is brushed by the rotation of the impeller." Considering that if the impeller moves forward, the volume inside the pump casing will also decrease, so the pressure on the pressure surface of the impeller will still increase, thereby triggering the pressure valve to work, and the slats will still rotate to a state perpendicular to the impeller blades. However, because the impeller actively moves forward at this time, the distance to the inner wall of the pump casing is shortened. There is no guarantee that the slats will not get stuck with the inner wall of the pump casing, thereby causing damage to the slats. Summary of the invention

[0003] To achieve the above object, the present invention discloses a chemical centrifugal pump with a cleaning function, comprising a pump body, a liquid inlet chamber located in the pump body, a liquid inlet and a liquid outlet connected to the liquid inlet chamber formed on the pump body, and further comprising:

[0004] The impeller assembly is located in the liquid inlet chamber, the motor 1 is installed on the pump body, the impeller assembly is installed at the output end of the motor 1, and the impeller assembly includes an impeller and a centrifugal rod installed on the impeller;

[0005] The rubber cartridge assembly has an inner wall of the liquid inlet chamber that is arranged in a closed manner along a direction close to the liquid inlet, and the rubber cartridge assembly is arranged to fit the inner wall of the liquid inlet chamber.

[0006] Preferably, a flow meter is installed on the liquid outlet, and the flow meter and motor 1 are electrically connected to the controller. The controller is located in a control box, and the control box is fixedly installed on the surface of the pump body. The flow meter and motor 1 are linked. The controller obtains the expected value of the power of motor 1 based on the liquid flow value delivered from the liquid outlet obtained by the flow meter, and transmits it to motor 1 to change the rotation speed of motor 1, thereby ensuring that the liquid is delivered at a constant flow rate from the liquid outlet.

[0007] Preferably, the impeller assembly further comprises:

[0008] A mounting plate, the mounting plate is mounted on the output end of the motor 1, the center column is mounted on the center end of the mounting plate, a plurality of impellers are arranged on the mounting plate in a circle array with the center column as the center, a receiving cavity for receiving a centrifugal rod is formed on the impeller, the centrifugal rod is rotatably mounted in the receiving cavity through a mounting shaft, the mounting shaft is arranged away from the center column, when the centrifugal rod flips out of the receiving cavity with the mounting shaft as the center, the centrifugal rod is attached to the inner wall of the liquid inlet chamber;

[0009] A reset coil spring is sleeved on the mounting shaft.

[0010] Preferably, the cartridge assembly comprises:

[0011] A feed cover, the cross section of which is conical, the inner wall of the liquid inlet chamber is divided into a first feed inner wall and a second feed inner wall along the direction close to the liquid inlet, the inclination of the first feed inner wall is greater than that of the second feed inner wall, and the large end of the feed cover is clamped on the second feed inner wall;

[0012] A feeding rubber cylinder, one end of which is connected to the small end of the feeding cover, and the other end of which is connected to the liquid inlet;

[0013] The inner ring of the turntable is installed at the side end of the feeding rubber cylinder near the liquid inlet.

[0014] Preferably, the cartridge assembly further comprises:

[0015] Motor 2, the motor 2 is installed on the surface of the pump body, and a spur gear is installed at the output end of the motor 2;

[0016] The outer gear ring is meshed with the spur gear, and the outer gear ring is fixedly installed on the outer ring of the turntable. The pump body is divided into two independent individuals near the liquid inlet. The turntable is clamped at the division of the two independent individuals. The two independent individuals are fixedly connected at the division by a C-type mounting frame.

[0017] Preferably, a rubber layer is nailed onto the inner wall of the feed, and the rubber layer extends into the inner wall of the large head end of the feed cover.

[0018] Preferably, a plurality of limiting grooves are formed on the second inner wall of the feed, and the limiting blocks are slidably connected in the limiting grooves and installed on the large end of the feed cover.

[0019] Preferably, it also includes an overload protection component installed between the output end of the motor 1 and the impeller assembly, and the overload protection component includes:

[0020] A side mounting frame, the side mounting frame is connected to the surface of the pump body away from the liquid inlet, and the motor is mounted on the side mounting frame;

[0021] A spline shaft, the spline shaft is installed at the output end of the motor 1, and the spline sleeve is sleeved on the spline shaft;

[0022] A return spring, with a connecting frame and a connecting ring connected to both ends of the return spring, the connecting frame is passed through the spline shaft, and the connecting ring is clamped on the spline sleeve;

[0023] Clamp block 1 and clamp block 2, wherein clamp block 1 is connected with the spline sleeve, and clamp block 2 is connected with the mounting plate through the transmission shaft;

[0024] A bow-shaped mounting frame is installed on the side mounting frame, and a clamping rod assembly for limiting the clamping block 1 is symmetrically installed on the bow-shaped mounting frame. A trigger assembly connected to the clamping rod assembly through an external connecting pipe is installed on the second inner wall of the feed, and the large head end of the feed cover is against the trigger assembly setting.

[0025] Preferably, the clamping rod assembly comprises:

[0026] A wedge-shaped clamping rod, a limit through hole for the wedge-shaped clamping rod to pass through is opened on the bow-shaped mounting frame, the inclined end of the wedge-shaped clamping rod is clamped on the clamping block 1, and the wedge-shaped clamping rod is connected to the bow-shaped mounting frame through a spring 1;

[0027] A hydraulic telescopic rod is fixedly mounted on a bow-shaped mounting frame, a telescopic end of the hydraulic telescopic rod extends into a limiting through-hole, and is adapted to a limiting groove arranged on a wedge-shaped clamping rod, and the hydraulic telescopic rod is connected to an external connecting pipe.

[0028] Preferably, the trigger component includes:

[0029] A hydraulic cylinder, which is fixedly mounted on the second inner wall of the feed material, has a plug body in it, is connected to an external connecting pipe, and stores hydraulic oil in the hydraulic cylinder;

[0030] Spring 2, the spring 2 is located in the hydraulic cylinder and is disposed between the inner wall of the hydraulic cylinder and the plug body;

[0031] A trigger rod, one end of which extends from the end of the hydraulic cylinder away from the external connecting pipe into the hydraulic cylinder and is connected to the plug body, and the other end of the trigger rod is adapted to be arranged at the large end of the feed cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is a structural schematic diagram of the present invention;

[0034] Figure 2 It is the appearance diagram of the present invention;

[0035] Figure 3 for Figure 1 The enlarged view of the middle label A;

[0036] Figure 4 It is a schematic diagram of the installation of the turntable of the present invention at the dividing position;

[0037] Figure 5 It is a schematic diagram of the structure of the impeller assembly of the present invention;

[0038] Figure 6 It is a schematic diagram of the structure of the clamp rod assembly of the present invention;

[0039] Figure 7 It is a schematic diagram of the cooperation between the hydraulic telescopic rod and the wedge-shaped clamping rod of the present invention.

[0040] In the figure: 10. Pump body; 11. Liquid inlet chamber; 12. Liquid inlet; 13. Liquid outlet; 14. Impeller assembly; 15. Motor 1; 16. Blades; 17. Centrifugal rod; 18. Rubber cartridge assembly; 19. Mounting plate; 20. Feed cover; 21. Feed rubber cartridge; 22. Turntable; 23. Motor 2; 24. Outer gear ring; 25. C-type mounting frame; 26. Rubber layer; 27. Side mounting frame; 28. Spline shaft; 2 9. Spline sleeve; 30. Return spring; 31. Connecting frame; 32. Connecting ring; 33. Bow-shaped mounting frame; 34. Clamp rod assembly; 35. External connecting pipe; 36. Trigger assembly; 37. Wedge-shaped clamp rod; 38. Spring 1; 39. Hydraulic telescopic rod; 40. Hydraulic cylinder; 41. Plug body; 42. Spring 2; 43. Trigger rod; 44. Clamp block 1; 45. Clamp block 2; 46. Flow meter; 47. Control box. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0042] Example 1

[0043] The present invention will be further described below in conjunction with the accompanying drawings.

[0044] like Figures 1 to 7 As shown, the present embodiment provides a chemical centrifugal pump with a cleaning function, including a pump body 10, a liquid inlet chamber 11 located in the pump body 10, a liquid inlet 12 and a liquid outlet 13 connected to the liquid inlet chamber 11 are formed on the pump body 10, and further includes:

[0045] The impeller assembly 14 is located in the liquid inlet chamber 11. The motor 15 is installed on the pump body 10. The impeller assembly 14 is installed at the output end of the motor 15. The impeller assembly 14 includes blades 16 and a centrifugal rod 17 installed on the blades 16.

[0046] The rubber cartridge assembly 18 and the inner wall of the liquid inlet chamber 11 are arranged in a closed manner along the direction close to the liquid inlet port 12 , and the rubber cartridge assembly 18 is adapted to be arranged on the inner wall of the liquid inlet chamber 11 .

[0047] The working principle and beneficial effects of the above technical solution are:

[0048] The present invention provides a chemical centrifugal pump with a cleaning function. When it is necessary to clean the dirt in the pump body 10, the rubber cartridge assembly 18 works, thereby reducing its cross-sectional area. In order to ensure the liquid flow rate sent out from the liquid outlet 13, the power of the motor 15 is increased, and the motor 15 drives the impeller assembly 14 to rotate at a high speed, so that the centrifugal rod 17 on the blade 16 protrudes to complete the scraping of the inner wall of the liquid inlet chamber 11. Because the liquid is sent into the liquid inlet chamber 11 after the rubber cartridge assembly 18, when the cross-sectional area of ​​the rubber cartridge assembly 18 becomes smaller, the attachment area of ​​the dirt attached therein becomes smaller, so that it is easy to fall off, and the liquid flow rate passing through the rubber cartridge assembly 18 becomes faster to flush the attached dirt in the rubber cartridge assembly 18, thereby realizing the rapid cleaning of the dirt in the pump body 10.

[0049] In this embodiment, a flow meter 46 is installed on the liquid outlet 13. The flow meter 46 and the motor 15 are electrically connected to the controller. The controller is located in a control box 47. The control box 47 is fixedly installed on the surface of the pump body 10. The flow meter 46 and the motor 15 are linked. The controller obtains the expected value of the power of the motor 15 based on the liquid flow value delivered from the liquid outlet 13 obtained by the flow meter 46, and transmits it to the motor 15 to change the rotation speed of the motor 15, thereby ensuring that the liquid outlet 13 delivers liquid at a constant flow rate.

[0050] The working principle and beneficial effects of the above technical solution are:

[0051] The flow meter 46 installed on the liquid outlet 13 is used to monitor the flow rate of the liquid sent out from the liquid outlet 13 in real time. When there is too much dirt in the pump body 10, the rubber cartridge assembly 18 works, thereby reducing its cross-sectional area. After the flow meter 46 detects that the flow rate has decreased, it sends it to the controller. The controller obtains the expected value of the power of the motor 15 according to the reduced flow rate value. The power of the motor 15 increases, the speed of the motor 15 increases, and the speed of the impeller assembly 14 increases, thereby ensuring that the liquid is sent out at a constant flow rate from the liquid outlet 13. When the speed of the impeller assembly 14 increases, on the one hand, the centrifugal rod 17 extends the blades 16 to complete the scraping of the inner wall of the liquid inlet chamber 11. On the other hand, the flow rate of the liquid sent from the rubber cartridge assembly 18 into the liquid inlet chamber 11 becomes faster, which is beneficial to flushing out the attached dirt in the rubber cartridge assembly 18.

[0052] In this embodiment, the impeller assembly 14 further includes:

[0053] A mounting plate 19 is mounted on the output end of the motor 15, a center column is mounted on the center end of the mounting plate 19, a plurality of blades 16 are distributed on the mounting plate 19 in a circle array with the center column as the center, a receiving cavity for receiving a centrifugal rod 17 is formed on the blade 16, the centrifugal rod 17 is rotatably mounted in the receiving cavity by a mounting shaft, the mounting shaft is arranged away from the center column, when the centrifugal rod 17 flips out of the receiving cavity with the mounting shaft as the center, the centrifugal rod 17 is attached to the inner wall of the liquid inlet chamber 11;

[0054] A reset coil spring is sleeved on the mounting shaft.

[0055] The working principle and beneficial effects of the above technical solution are:

[0056] The motor 15 works, thereby driving the mounting plate 19 installed at its output end to rotate in the liquid inlet chamber 11, and the blades 16 on the mounting plate 19 rotate, and the blades 16 are all set to point to the central column. When the speed of the motor 15 becomes faster, under the action of centrifugal force, the centrifugal rod 17 flips outward in the accommodating chamber with the mounting axis as the center, and the centrifugal rod 17 protrudes out of the accommodating chamber and abuts against the inner wall of the liquid inlet chamber 11. The centrifugal rod 17 completes the scraping of the inner wall of the liquid inlet chamber 11. After the speed of the motor 15 decreases, under the action of the reset coil spring, the centrifugal rod 17 is retracted into the accommodating chamber.

[0057] In this embodiment, the cartridge assembly 18 includes:

[0058] A feed cover 20, the cross section of which is conical, the inner wall of the liquid inlet chamber 11 is divided into a first feed inner wall and a second feed inner wall along the direction close to the liquid inlet 12, the inclination of the first feed inner wall is greater than that of the second feed inner wall, and the large end of the feed cover 20 is clamped on the second feed inner wall;

[0059] A feeding rubber cylinder 21, one end of which is connected to the small end of the feeding cover 20, and the other end of which is connected to the liquid inlet 12;

[0060] The turntable 22 has an inner ring mounted on the side end of the feeding rubber cylinder 21 close to the liquid inlet 12 .

[0061] The working principle and beneficial effects of the above technical solution are:

[0062] The liquid is fed into the feed rubber cylinder 21 from the liquid inlet 12, and then fed into the liquid inlet chamber 11 from the feed cover 20. The large end of the feed cover 20 is clamped on the second inner wall of the feed, thereby ensuring the sealing between the feed cover 20 and the second inner wall of the feed. When the turntable 22 rotates, the feed rubber cylinder 21 located on its inner circle is driven to rotate. Because both ends of the feed rubber cylinder 21 cannot rotate, the feed rubber cylinder 21 is deformed near the turntable 22, resulting in a smaller cross-sectional area of ​​the feed rubber cylinder 21 near the turntable 22, and the feed rubber cylinder 21 is connected to the feed rubber cylinder 21. The feed cover 20 slides in the direction close to the liquid inlet 12, and the large end of the feed cover 20 always sticks to the second inner wall of the feed. In this way, the diameter of the large end port of the feed cover 20 is also reduced, so that the inner wall of the feed cover 20 and the inner wall of the feed rubber cylinder 21 are deformed, and the attachment area of ​​the dirt attached thereto becomes smaller, so that it is easy to fall off. Moreover, because the cross-sectional area of ​​the feed rubber cylinder 21 becomes smaller, the flow rate of the liquid passing through the feed rubber cylinder 21 becomes faster to flush the attached dirt in the feed rubber cylinder 21, thereby realizing the rapid cleaning of the dirt in the pump body 10. When the turntable 22 rotates in the opposite direction, the feed rubber cylinder 21 returns to its original state. After losing the pull of the feed rubber cylinder 21, the feed cover 20 returns to its original state, the diameter of the large end port of the feed cover 20 becomes larger, and the feed cover 20 slides on the second inner wall of the feed toward the direction close to the liquid inlet chamber 11. The feed cover 20 can be made of a rigid material with a certain amount of deformation.

[0063] In this embodiment, the rubber cartridge assembly 18 further includes:

[0064] Motor 2 23, the motor 23 is mounted on the surface of the pump body 10, and a spur gear is mounted on the output end of the motor 23;

[0065] The outer gear ring 24, the spur gear is meshed with the outer gear ring 24, the outer gear ring 24 is fixedly mounted on the outer ring of the turntable 22, the pump body 10 is divided into two independent individuals near the liquid inlet 12, the turntable 22 is clamped at the division of the two independent individuals, and the two independent individuals are fixedly connected at the division by a C-shaped mounting frame 25.

[0066] The working principle and beneficial effects of the above technical solution are:

[0067] The motor 23 installed on the surface of the pump body 10 works, thereby driving the spur gear installed on the output end of the motor 23 to rotate, and the spur gear drives the outer gear ring 24 meshing with it and the turntable 22 connected to the outer gear ring 24 to rotate, thereby realizing the change of the cross-sectional area of ​​the feed rubber cylinder 21. In order to facilitate the exposure of the outer ring of the turntable 22 from the pump body 10, the pump body 10 is divided into two independent individuals near the liquid inlet 12, and the turntable 22 is clamped at the division of the two independent individuals. In order to achieve an integrated connection between the two independent individuals, a C-type mounting frame 25 can be installed at the division. The setting of the C-type mounting frame 25 also makes good space for the outer gear ring 24.

[0068] In this embodiment, a rubber layer 26 is nailed onto the inner wall of the feed cover 20 , and the rubber layer 26 extends into the inner wall of the large end of the feed cover 20 .

[0069] The working principle and beneficial effects of the above technical solution are:

[0070] By nailing a rubber layer 26 on the first inner wall of the feed, when the turntable 22 rotates and the cross-sectional area of ​​the feed rubber cylinder 21 is reduced, the feed cover 20 slides on the second inner wall of the feed toward the liquid inlet 12, and the feed cover 20 pulls the rubber layer 26, thereby increasing the area of ​​the rubber layer 26. The attached dirt on the rubber layer 26 is easily fallen off due to the change in the attachment area.

[0071] In this embodiment, a plurality of limiting grooves are formed on the second inner wall of the feed, and the limiting blocks are slidably connected in the limiting grooves and installed on the large end of the feed cover 20.

[0072] The beneficial effects of the above technical solution are:

[0073] The setting of the limiting groove and the limiting block limits the sliding direction of the large end of the feed cover 20 on the second feed inner wall.

[0074] In this embodiment, an overload protection component installed between the output end of the motor 15 and the impeller assembly 14 is also included, and the overload protection component includes:

[0075] A side mounting frame 27, the side mounting frame 27 is connected to the surface of the pump body 10 away from the liquid inlet 12, and the motor 15 is mounted on the side mounting frame 27;

[0076] A spline shaft 28, the spline shaft 28 is installed at the output end of the motor 15, and the spline sleeve 29 is sleeved on the spline shaft 28;

[0077] A return spring 30, with a connecting frame 31 and a connecting ring 32 connected to both ends of the return spring 30, the spline shaft 28 passes through the connecting frame 31, and the connecting ring 32 is clamped on the spline sleeve 29;

[0078] Clamp block 1 44 and clamp block 2 45, wherein clamp block 1 44 is connected to spline sleeve 29, and clamp block 2 45 is connected to mounting plate 19 via a transmission shaft;

[0079] A bow-shaped mounting frame 33 is mounted on the side mounting frame 27, and a rod assembly 34 for limiting a positioning block 44 is symmetrically mounted on the bow-shaped mounting frame 33. A trigger assembly 36 connected to the rod assembly 34 through an external connecting pipe 35 is mounted on the second inner wall of the feed, and the large end of the feed cover 20 is abutted against the trigger assembly 36.

[0080] The working principle and beneficial effects of the above technical solution are:

[0081] When the turntable 22 rotates, the cross-sectional area of ​​the feed rubber cylinder 21 shrinks too small, and the power of the motor 15 is too large. In order to prevent the motor 15 from burning, the cross-sectional area of ​​the feed rubber cylinder 21 shrinks too small, which means that the rotation angle of the turntable 22 is too large. The feed rubber cylinder 21 pulls the feed cover 20 to slide on the feed inner wall 2 toward the liquid inlet 12 for a long distance. The large end of the feed cover 20 is abutted against the trigger component 36. The trigger component 36 sends a working instruction to the clamping rod component 34 installed on the bow-shaped mounting frame 33 through the external connecting pipe 35. The clamping rod component 34 releases the limit on the clamping block 44, and the reset spring 30 resets and shrinks. The connecting ring 32 drives the clamping block 44 to move in the contraction direction of the reset spring 30. The block 1 44 and the block 2 45 are disconnected, and at this time, the motor 15 drives the spline shaft 28 and the spline sleeve 29 sleeved on the spline shaft 28 to idle, so that there is no risk of the motor 15 burning up. After the motor 15 stops, the block 1 44 and the spline sleeve 29 connected to the block 1 44 are manually pulled in the direction close to the block 2 45, and the block 1 44 and the block 2 45 are restored to be connected, and the clamping rod assembly 34 completes the limiting of the block 1 44 again, and the reset spring 30 is stretched. Synchronously, the motor 23 rotates in the opposite direction, and the turntable 22 rotates, so that the cross-sectional area of ​​the feed rubber cylinder 21 is expanded, and the feed cover 20 moves in the direction close to the liquid inlet chamber 11, and the feed cover 20 releases the resistance to the trigger assembly 36.

[0082] In this embodiment, the clamping rod assembly 34 includes:

[0083] The wedge-shaped clamping rod 37 is provided with a limiting through hole for the wedge-shaped clamping rod 37 to pass through on the bow-shaped mounting frame 33. The inclined end of the wedge-shaped clamping rod 37 is clamped on the clamping block 1 44. The wedge-shaped clamping rod 37 is connected to the bow-shaped mounting frame 33 through a spring 1 38.

[0084] The hydraulic telescopic rod 39 is fixedly mounted on the bow-shaped mounting frame 33 , the telescopic end of the hydraulic telescopic rod 39 extends into the limiting through-hole and is adapted to the limiting groove provided on the wedge-shaped clamping rod 37 , and the hydraulic telescopic rod 39 is connected to the external connecting pipe 35 .

[0085] The working principle and beneficial effects of the above technical solution are:

[0086] The big end of the feed cover 20 is against the trigger assembly 36, and the trigger assembly 36 sends hydraulic oil into the hydraulic telescopic rod 39 through the external connecting pipe 35. The telescopic end of the hydraulic telescopic rod 39 releases the limit on the limit groove, and the spring 1 38 extends and resets. The wedge-shaped clamping rod 37 moves in the limit perforation in the extension direction of the spring 1 38, and the inclined end of the wedge-shaped clamping rod 37 releases the limit on the clamping block 1 44, and the reset spring 30 resets and contracts. The connecting ring 32 drives the clamping block 1 44 to move in the contraction direction of the reset spring 30, and the clamping block 1 44 and the clamping block 2 45 are disconnected. When it is necessary to restore the limit block 44 of the wedge-shaped clamping rod 37, the wedge-shaped clamping rod 37 is manually pressed in the contraction direction of the spring 38, and the wedge-shaped clamping rod 37 is clamped on the clamping block 44, pressing the telescopic end of the telescopic rod 39 back into the limit groove, thereby completing the fixation of the wedge-shaped clamping rod 37 in the limit perforation, and the hydraulic oil in the hydraulic telescopic rod 39 returns to the trigger assembly 36.

[0087] In this embodiment, the trigger component 36 includes:

[0088] A hydraulic cylinder 40, which is fixedly mounted on the second inner wall of the feed material, a plug body 41 is provided in the hydraulic cylinder 40, the hydraulic cylinder 40 is connected to the external connecting pipe 35, and hydraulic oil is stored in the hydraulic cylinder 40;

[0089] The second spring 42 is located in the hydraulic cylinder 40 and is disposed between the inner wall of the hydraulic cylinder 40 and the plug body 41;

[0090] The trigger rod 43 has one end extending from the end of the hydraulic cylinder 40 away from the external connecting pipe 35 into the hydraulic cylinder 40 and connected to the plug body 41 , and the other end of the trigger rod 43 is adapted to the large end of the feed cover 20 .

[0091] The working principle and beneficial effects of the above technical solution are:

[0092] The large head end of the feed cover 20 is abutted against the trigger rod 43, thereby driving the plug body 41 connected to the trigger rod 43 to move in the hydraulic cylinder 40 in the direction of contraction of the spring second 42, and the hydraulic oil in the hydraulic cylinder 40 is sent into the hydraulic telescopic rod 39 through the external connecting pipe 35, thereby releasing the inclined end of the wedge-shaped clamping rod 37 from the limit of the clamping block 1 44, and the wedge-shaped clamping rod 37 is manually pressed to move in the contraction direction of the spring 1 38, the wedge-shaped clamping rod 37 is clamped on the clamping block 1 44, and the telescopic end of the telescopic rod 39 is pressed back into the limit groove, thereby completing the fixation of the wedge-shaped clamping rod 37 in the limit perforation, and because the trigger rod 43 loses the resistance of the large head end of the feed cover 20, the spring second 42 is reset, thereby driving the plug body 41 and the trigger rod 43 connected to the plug body 41 to move in the extension direction of the spring second 42, and after the hydraulic oil in the hydraulic telescopic rod 39 is returned to the hydraulic cylinder 40, the reset of the trigger rod 43 is completed.

[0093] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A centrifugal pump for chemical use with a cleaning function, comprising a pump body (10), a liquid inlet chamber (11) located in the pump body (10), a liquid inlet (12) and a liquid outlet (13) connected to the liquid inlet chamber (11) formed on the pump body (10), characterized in that: It also includes: an impeller assembly (14) and a rubber cartridge assembly (18), wherein the impeller assembly (14) is located in the liquid inlet chamber (11), a motor (15) is mounted on the pump body (10), the impeller assembly (14) is mounted on the output end of the motor (15), and the impeller assembly (14) includes an impeller (16) and a centrifugal rod (17) mounted on the impeller (16); the inner wall of the liquid inlet chamber (11) is arranged in a closed-end manner along a direction close to the liquid inlet (12), and the rubber cartridge assembly (18) is arranged to fit the inner wall of the liquid inlet chamber (11); The rubber cylinder assembly (18) comprises: a feed cover (20), a feed rubber cylinder (21) and a turntable (22); the cross section of the feed cover (20) is conical; the inner wall of the liquid inlet chamber (11) is divided into a feed inner wall 1 and a feed inner wall 2 along a direction close to the liquid inlet (12); the inclination of the feed inner wall 1 is greater than that of the feed inner wall 2; the large end of the feed cover (20) is clamped on the feed inner wall 2; one end of the feed rubber cylinder (21) is connected to the small end of the feed cover (20), and the other end of the feed rubber cylinder (21) is connected to the liquid inlet (12); the inner ring of the turntable (22) is installed at the side end of the feed rubber cylinder (21) close to the liquid inlet (12); The rubber cartridge assembly (18) further comprises: a second motor (23) mounted on the surface of the pump body (10); a spur gear is mounted on the output end of the second motor (23); the spur gear is meshed with an outer gear ring (24); the outer gear ring (24) is fixedly mounted on the outer ring of the turntable (22); the pump body (10) is divided into two independent bodies at a position close to the liquid inlet (12); the turntable (22) is clamped at the dividing portion of the two independent bodies; the two independent bodies are fixedly connected at the dividing portion via a C-shaped mounting frame (25).

2. A chemical centrifugal pump with a pollution cleaning function according to claim 1, characterized in that: A flow meter (46) is installed on the liquid outlet (13). The flow meter (46) and the motor 1 (15) are both electrically connected to a controller. The controller is located in a control box (47). The control box (47) is fixedly installed on the surface of the pump body (10). The flow meter (46) and the motor 1 (15) are linked. The controller obtains an expected value of the power of the motor 1 (15) based on the flow value of the liquid delivered from the liquid outlet (13) obtained by the flow meter (46), and transmits the expected value to the motor 1 (15) to change the rotation speed of the motor 1 (15), thereby ensuring that the liquid is delivered at a constant flow rate from the liquid outlet (13).

3. A chemical centrifugal pump with a pollution cleaning function according to claim 1, characterized in that: The impeller assembly (14) further comprises: a mounting plate (19) mounted on the output end of the motor 1 (15); a central column mounted on the central end of the mounting plate (19); a plurality of impellers (16) arranged in a circular array with the central column as the center, a receiving cavity for receiving a centrifugal rod (17) formed on the impeller (16); the centrifugal rod (17) being rotatably mounted in the receiving cavity via a mounting shaft; the mounting shaft being arranged away from the central column; when the centrifugal rod (17) flips out of the receiving cavity with the mounting shaft as the center, the centrifugal rod (17) is attached to the inner wall of the liquid inlet chamber (11); and a reset coil spring is sleeved on the mounting shaft.

4. A chemical centrifugal pump with a pollution cleaning function according to claim 1, characterized in that: A rubber layer (26) is nailed onto the inner wall of the feed material, and the rubber layer (26) extends into the inner wall of the large end of the feed material cover (20).

5. The chemical centrifugal pump with a pollution cleaning function according to claim 1, characterized in that: A plurality of limit grooves are formed on the second inner wall of the feed, and the limit blocks are slidably connected in the limit grooves and mounted on the large end of the feed cover (20).

6. A chemical centrifugal pump with a pollution-cleaning function according to claim 1, characterized in that: The overload protection assembly is also included and is installed between the output end of the motor 1 (15) and the impeller assembly (14). The overload protection assembly includes: a side mounting frame (27) connected to the surface of the pump body (10) away from the liquid inlet (12), and the motor 1 (15) is installed on the side mounting frame (27); a spline shaft (28) is installed at the output end of the motor 1 (15), and a spline sleeve (29) is sleeved on the spline shaft (28); two ends of the return spring (30) are connected to a connecting frame (31) and a connecting ring (32), and the spline shaft (28) passes through the connecting frame (31). ), a connecting ring (32) is clamped on the spline sleeve (29); a clamping block (44) is connected to the spline sleeve (29), and a clamping block (45) is connected to the mounting plate (19) via a transmission shaft; an arch-shaped mounting frame (33) is mounted on the side mounting frame (27), a clamping rod assembly (34) for limiting the clamping block (44) is symmetrically mounted on the arch-shaped mounting frame (33), a trigger assembly (36) connected to the clamping rod assembly (34) via an external connecting pipe (35) is mounted on the second inner wall of the feed, and the large end of the feed cover (20) is abutted against the trigger assembly (36).

7. A chemical centrifugal pump with a pollution-cleaning function according to claim 6, characterized in that: The clamping rod assembly (34) comprises: a wedge-shaped clamping rod (37) and a hydraulic telescopic rod (39); a limit through-hole for the wedge-shaped clamping rod (37) to pass through is provided on the bow-shaped mounting frame (33); the inclined end of the wedge-shaped clamping rod (37) is clamped on a clamping block (44); the wedge-shaped clamping rod (37) is connected to the bow-shaped mounting frame (33) via a spring (38); the hydraulic telescopic rod (39) is fixedly mounted on the bow-shaped mounting frame (33); the telescopic end of the hydraulic telescopic rod (39) extends into the limit through-hole and is adapted to fit the limit groove provided on the wedge-shaped clamping rod (37); the hydraulic telescopic rod (39) is connected to the external connecting pipe (35).

8. A chemical centrifugal pump with a pollution-cleaning function according to claim 6, characterized in that: The trigger assembly (36) comprises: a hydraulic cylinder (40) fixedly mounted on the second inner wall of the feed, a plug body (41) being arranged in the hydraulic cylinder (40), the hydraulic cylinder (40) being in communication with the external connecting pipe (35), and hydraulic oil being stored in the hydraulic cylinder (40); a second spring (42) being located in the hydraulic cylinder (40) and being disposed between the inner wall of the hydraulic cylinder (40) and the plug body (41); one end of a trigger rod (43) extending from the end of the hydraulic cylinder (40) away from the external connecting pipe (35) into the hydraulic cylinder (40) and being connected to the plug body (41), and the other end of the trigger rod (43) being adapted to be arranged at the large end of the feed cover (20).

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