A self-cleaning sewage pump based on a flexible pump body

Abstract

The present invention provides a self-cleaning sewage pump based on a flexible pump body, which relates to the field of water pumps. The self-cleaning sewage pump based on a flexible pump body includes a frame, the frame includes connecting sections arranged on left and right sides, a flexible tube is arranged on the inner side of the frame, the middle part of the flexible tube is fixedly connected to a sliding frame, the sliding frame is slidingly arranged along the length direction of the angle steel, the inner wall of the sliding frame is fixedly connected to a flexible membrane, one side of the flexible membrane is provided with an arc rod, one end of the arc rod is connected to the inside of the sliding frame for rotation, and the other ends of several of the arc rods are arranged to fit together, one of the connecting sections is fixedly connected to an "L"-shaped water suction pipe, the other end of the water suction pipe is internally sleeved with a telescopic pipe, and the lower end of the telescopic pipe is internally provided with a baffle for rotation. The impeller is eliminated and a reciprocating pushing mechanism is adopted to achieve liquid pumping, eliminating the problem of traditional pumps being prone to clogging and damage.

Description

Technical Field

[0001] The invention relates to the technical field of water pumps, in particular to a self-clogging sewage pump based on a flexible pump body. Background Art

[0002] A water pump is a machine that transports liquids or increases the pressure of liquids. It transfers the mechanical energy of the prime mover or other external energy to the liquid, increasing the liquid's energy. It is mainly used to transport liquids including water, oil, acid and alkali solutions, emulsions, suspensions, and liquid metals.

[0003] Common pumps use a high-speed rotating impeller to propel liquid, achieving pumping. Sewage pumps are no exception. Sewage contains debris, such as fibers and gravel, which can easily become entangled or bunched. Consequently, the flow path of these pumps is prone to blockage or entanglement with the impeller. Blockage can cause the pump to malfunction and even burn out the motor, resulting in poor drainage. Because the impeller rotates at high speed, gravel passing through it can collide and rub against the impeller, shortening its service life and even severely damaging it. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides a self-cleaning sewage pump based on a flexible pump body, which solves the problem of foreign matter entanglement and blockage in the prior sewage pump during pumping.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a self-cleaning sewage pump based on a flexible pump body, comprising a frame, the frame comprising connecting sections arranged on left and right sides, a plurality of angle steels fixedly connected between the two connecting sections, a flexible tube provided on the inner side of the frame, the two ends of the flexible tube being fixedly connected to the two connecting sections respectively, a sliding frame fixedly connected to the middle part of the flexible tube, the sliding frame being slidably arranged along the length direction of the angle steel, a flexible membrane being fixedly connected to the inner wall of the sliding frame, an arc rod being provided on one side of the flexible membrane, the flexible membrane being attached to the arc rod, one end of the arc rod being rotatably connected to the inside of the sliding frame, and the other ends of a plurality of the arc rods being arranged in contact with each other;

[0008] One of the connecting sections is fixedly connected to an "L"-shaped water-drawing pipe, and a telescopic pipe is sleeved inside the other end of the water-drawing pipe. A baffle is rotatably provided inside the lower end of the telescopic pipe, and the lower end edge of the baffle abuts against the convex edge provided on the inner wall of the telescopic pipe.

[0009] Preferably, both side walls of the water-drawing pipe are fixedly connected with a first hydraulic cylinder, a telescopic rod is extended from the lower end of the first hydraulic cylinder, and the lower end of the telescopic rod is fixed to the side wall of the telescopic tube.

[0010] Preferably, a sealing gasket is fixedly connected to the convex edge provided at the lower end of the telescopic tube, and the sealing gasket is located between the baffle and the convex edge.

[0011] Preferably, through holes are provided at both the upper and lower ends of the sliding frame, and sliding rods are inserted into the through holes, and the sliding rods and the sliding frame are slidably matched.

[0012] Preferably, both ends of the sliding rod are fixed to two connecting sections respectively.

[0013] Preferably, both side walls of the sliding frame are fixedly connected with push rods, and the middle part of the push rods is fixed on the sliding frame.

[0014] Preferably, a second hydraulic cylinder is fixedly connected to one of the connecting sections, and the output end of the second hydraulic cylinder is fixedly connected to one end of the push rod, and a third hydraulic cylinder is fixedly connected to the other connecting section, and the output end of the third hydraulic cylinder is fixedly connected to the other end of the push rod.

[0015] Preferably, a base is fixedly connected to the lower portion of the frame, and a hydraulic source is provided on the base. The hydraulic source includes a hydraulic pump, an oil tank, and a reversing valve.

[0016] (3) Beneficial effects

[0017] The present invention provides a self-cleaning sewage pump based on a flexible pump body. It has the following beneficial effects:

[0018] The present invention eliminates the traditional impeller mechanism and adopts the reciprocating motion of the sliding frame to promote the movement of liquid through the baffle, flexible membrane and baffle to achieve liquid pumping. There are no high-speed rotating parts and no structure that can cause fiber entanglement, which greatly reduces the chance of blockage.

[0019] The present invention is provided with a telescopic tube and a water drawing tube, and the extension length of the telescopic tube can be set according to pumping requirements. At the same time, the telescopic tube can be linked with the sliding frame to improve the pumping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 It is a side schematic diagram of the present invention;

[0022] Figure 3 It is a schematic cross-sectional view of the sliding frame of the present invention;

[0023] Figure 4It is a schematic cross-sectional view of the lower portion of the telescopic tube of the present invention.

[0024] Among them, 1. telescopic tube; 2. telescopic rod; 3. water-drawing pipe; 4. first hydraulic cylinder; 5. base; 6. frame; 7. hydraulic source; 8. flexible tube; 9. sliding frame; 10. push rod; 11. second hydraulic cylinder; 12. sliding rod; 13. angle steel; 14. third hydraulic cylinder; 15. through hole; 16. arc rod; 17. flexible membrane; 18. sealing gasket; 19. baffle. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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 making creative efforts are within the scope of protection of the present invention.

[0026] Example:

[0027] like Figure 1-4 As shown, an embodiment of the present invention provides a self-cleaning sewage pump based on a flexible pump body, including a frame 6. The frame 6 is in a long shape and is symmetrically arranged on the left and right sides. The frame 6 includes connecting sections arranged on the left and right sides. The connecting sections are used to connect the water inlet pipe and the water outlet pipe. A number of angle steels 13 are fixedly connected between the two connecting sections, and the angle steels 13 are fixed at the corners of the connecting sections to achieve a fixed connection between the two connecting sections. A flexible tube 8 is provided on the inner side of the frame 6. The flexible tube 8 is made of rubber or silicone, so that the flexible tube 8 can be bent. Its specific structure can also be similar to that of a bellows to ensure that the flexible tube 8 can be stretched or compressed in the axial direction. The two ends of the flexible tube 8 are respectively fixedly connected to the two connecting sections. A sliding frame 9 is fixedly connected to the middle part of the flexible tube 8. The sliding frame 9 is slidably arranged along the length direction of the angle steel 13, that is, the sliding frame 9 divides the flexible tube 8 into two parts, left and right. When the sliding frame 9 slides back and forth, the flexible tube 8 on one side is stretched while the flexible tube 8 on the other side is compressed.

[0028] The inner wall of the sliding frame 9 is fixedly connected with a flexible membrane 17, and the flexible membrane 17 is made of rubber or silicone. An arc rod 16 is provided on one side of the flexible membrane 17. The flexible membrane 17 is attached to the arc rod 16. One end of the arc rod 16 is rotatably connected to the inside of the sliding frame 9. The other ends of the arc rods 16 are fitted together, that is, the fitting between the arc rods 16 is formed by the elastic pulling of the flexible membrane 17, and the flexible membrane 17 and the arc rod 16 form a trumpet-shaped structure. When the sliding frame 9 moves, Figure 3Look, if the sliding frame 9 moves to the left and increases the pressure in the left chamber, during the movement, the fluid in the left chamber stretches the flexible membrane 17 and the closing part of the arc rod 16, and the arc rod 16 is forced to rotate to open the closing part, allowing the fluid to enter the right chamber. Then the sliding frame 9 moves to the right, and the arc rod 16 pushes the fluid in the right chamber, and the arc rod 16 is forced to push the reaction force of the fluid, so that the rotation direction of the arc rod 16 is opposite to that when the sliding frame 9 moves to the right, so that the closing part is closed, and the sliding frame 9 reciprocates to realize the pumping of the fluid. At the same time, multiple such mechanisms can be connected in parallel for uninterrupted transportation.

[0029] When the water level is adjusted according to the water level, the expansion pipe 1 is tightened, and the expansion pipe 1 is tightened to the left, so that the expansion pipe 1 is tightened. When the water level is adjusted according to the water level, the expansion pipe 1 is tightened, and the expansion pipe 1 is tightened. When the water level is adjusted according to the water level, the expansion pipe 1 is tightened, and the expansion pipe 1 is tightened. When the water level is adjusted according to the water level, the expansion pipe 1 is tightened, and the expansion pipe 1 is tightened. When the water level is adjusted according to the water level, the expansion pipe 1 is tightened, and the expansion pipe 1 is tightened. When the water level is adjusted according to the water level, the expansion pipe 1 is tightened, and the expansion pipe 1 is tightened. When the water level is adjusted according to the water level, the expansion pipe 1 is tightened, and the expansion pipe 1 is tightened. When the water level is adjusted

[0030] In traditional sewage pumps, high-speed rotating impellers are mostly used to pump sewage. However, there are debris in the sewage, and the debris may be gravel, fiber, etc., which will damage the impeller or block the sewage pump. In this structure, the flexible membrane 17 and the arc rod 16 use a pushing method to pump, which can eliminate the influence of debris and ensure the normal pumping of sewage.

[0031] The side walls of the water-drawing pipe 3 are fixedly connected to the first hydraulic cylinder 4 , and a telescopic rod 2 is extended from the lower end of the first hydraulic cylinder 4 . The lower end of the telescopic rod 2 is fixed to the side wall of the telescopic tube 1 . The first hydraulic cylinder 4 is used to extend and retract the telescopic tube 1 .

[0032] A sealing gasket 18 is fixedly connected to the convex edge provided at the lower end of the telescopic tube 1. The sealing gasket 18 is located between the baffle 19 and the convex edge to improve the sealing performance at the baffle 19, reduce liquid overflow, and improve pumping efficiency.

[0033] The upper and lower ends of the sliding frame 9 are both provided with through holes 15, and the sliding rod 12 is inserted into the through holes 15, and the sliding rod 12 and the sliding frame 9 are slidably matched, and the two ends of the sliding rod 12 are respectively fixed to the two connecting sections, so that the sliding frame 9 reciprocates in the direction of the sliding rod 12, and the sliding rod 12 cooperates with the angle steel 13 to improve the structural strength of the frame 6.

[0034] The side walls of the sliding frame 9 are fixedly connected with a push rod 10, and the middle part of the push rod 10 is fixed on the sliding frame 9. A second hydraulic cylinder 11 is fixedly connected to one connecting section, and the output end of the second hydraulic cylinder 11 is fixedly connected to one end of the push rod 10. A third hydraulic cylinder 14 is fixedly connected to the other connecting section, and the output end of the third hydraulic cylinder 14 is fixedly connected to the other end of the push rod 10. When the sliding frame 9 moves, the second hydraulic cylinder 11 and the third hydraulic cylinder 14 move in opposite directions, that is, the second hydraulic cylinder 11 extends and the third hydraulic cylinder 14 retracts.

[0035] The lower part of the frame 6 is fixedly connected to the base 5 to provide support. The base 5 is provided with a hydraulic source 7, which includes a hydraulic pump, an oil tank, and a reversing valve for driving the first hydraulic cylinder 4, the second hydraulic cylinder 11 and the third hydraulic cylinder 14.

[0036] Working principle: When in use, the first hydraulic cylinder 4 is activated, the telescopic tube 1 is extended, and the baffle 19 is ensured to be below the liquid surface, that is, immersed in the liquid. Before pumping, it is necessary to fill the left chamber of the sliding frame 9 with liquid, and then start the second hydraulic cylinder 11 and the third hydraulic cylinder 14 to drive the sliding frame 9 to reciprocate and realize the pumping of the liquid.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning sewage pump based on a flexible pump body, comprising a frame (6), characterized in that: The frame (6) includes connecting sections arranged on the left and right sides, and a plurality of angle steels (13) are fixedly connected between the two connecting sections. A flexible tube (8) is arranged on the inner side of the frame (6), and the two ends of the flexible tube (8) are fixedly connected to the two connecting sections respectively. A sliding frame (9) is fixedly connected to the middle part of the flexible tube (8), and the sliding frame (9) is slidably arranged along the length direction of the angle steel (13). A flexible membrane (17) is fixedly connected to the inner wall of the sliding frame (9), and an arc rod (16) is arranged on one side of the flexible membrane (17). The flexible membrane (17) is attached to the arc rod (16), and one end of the arc rod (16) is rotatably connected to the inside of the sliding frame (9), and the other ends of the plurality of arc rods (16) are arranged to fit each other. One of the connecting sections is fixedly connected to an "L"-shaped water-drawing pipe (3), the other end of the water-drawing pipe (3) is sleeved with a telescopic pipe (1), a baffle (19) is rotatably provided inside the lower end of the telescopic pipe (1), and the lower end edge of the baffle (19) abuts against a convex edge provided on the inner wall of the telescopic pipe (1); Both side walls of the sliding frame (9) are fixedly connected to push rods (10), and the middle part of the push rod (10) is fixed to the sliding frame (9), a second hydraulic cylinder (11) is fixedly connected to one of the connecting sections, and the output end of the second hydraulic cylinder (11) is fixedly connected to one end of the push rod (10), and a third hydraulic cylinder (14) is fixedly connected to the other connecting section, and the output end of the third hydraulic cylinder (14) is fixedly connected to the other end of the push rod (10).

2. A self-cleaning sewage pump based on a flexible pump body according to claim 1, characterized in that: Both side walls of the water-drawing pipe (3) are fixedly connected to a first hydraulic cylinder (4), a telescopic rod (2) is extended from the lower end of the first hydraulic cylinder (4), and the lower end of the telescopic rod (2) is fixed to the side wall of the telescopic pipe (1).

3. The self-cleaning sewage pump based on a flexible pump body according to claim 1, characterized in that: A sealing gasket (18) is fixedly connected to a convex edge provided at the lower end of the telescopic tube (1), and the sealing gasket (18) is located between the baffle (19) and the convex edge.

4. The self-cleaning sewage pump based on a flexible pump body according to claim 1, characterized in that: The upper end and the lower end of the sliding frame (9) are both provided with through holes (15), a sliding rod (12) is inserted into the through hole (15), and the sliding rod (12) and the sliding frame (9) are slidably matched.

5. The self-cleaning sewage pump based on a flexible pump body according to claim 4, characterized in that: Both ends of the sliding rod (12) are respectively fixed to the two connecting sections.

6. The self-cleaning sewage pump based on a flexible pump body according to claim 1, characterized in that: The lower part of the frame (6) is fixedly connected to a base (5), and a hydraulic source (7) is provided on the base (5). The hydraulic source (7) includes a hydraulic pump, an oil tank, and a reversing valve.

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