A potassium sorbate solution delivery pump

Abstract

The invention relates to the technical field of delivery pumps, in particular to a potassium sorbate solution delivery pump. A backflow prevention component is detachably installed in a liquid outlet pipe to prevent liquid backflow from damaging a pump body. Since the backflow prevention component is arranged in the liquid outlet pipe, no modification of the pump body is involved. Therefore, even if the backflow prevention component fails, it can be disassembled and replaced or cleaned without replacing the pump body, thereby saving equipment cost and being very convenient to disassemble. The backflow prevention component is provided with a sliding column and a counterweight retaining ring. When in use, the counterweight retaining ring is pushed open by the upward impact force of the liquid, so that a liquid passage groove is opened to realize an infusion function. However, if the liquid refluxes, the counterweight retaining ring will close the liquid passage groove due to the gravity of the counterweight retaining ring and the downward pressure of the liquid, preventing backflow. The invention is simple and efficient.

Description

Technical Field

[0001] The invention relates to the technical field of delivery pumps, in particular to a potassium sorbate solution delivery pump. Background Art

[0002] In the process of transporting potassium sorbate solution, a centrifugal pump is needed to provide transport power. The centrifugal pump drives the impeller to rotate at high speed through the motor, sucking the medium from the water inlet and spraying it out from the water outlet. In the process of traditional delivery pumps delivering liquid from one place to another, the liquid is prone to backflow, which will affect the normal delivery of the liquid. The pressure of the backflow and the pressure of the delivery will also cause damage to the internal parts of the pump. Therefore, in the prior art, the pump body is modified by modifying the structure of the pump body itself to make the pump body have the ability to prevent backflow. However, this type of structure is usually more complicated, and since the pump body itself is modified, if this type of anti-backflow structure is damaged, the entire pump body will also lose its anti-backflow performance, and ultimately the pump body can only be replaced, and the maintenance cost and equipment cost are both high. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a potassium sorbate solution delivery pump.

[0004] To achieve the above object, the present invention provides the following technical solution: a potassium sorbate solution delivery pump, comprising a horizontal pump body, one end of the horizontal pump body being transmission-connected to a motor, the horizontal pump body being connected to a liquid inlet and a liquid outlet, the liquid outlet being located on the upper side of the horizontal pump body, the liquid outlet being connected to a liquid outlet pipe; the interior of the liquid outlet pipe being connected to a mounting pipe, the inner side of the mounting pipe being provided with a circular liquid-passing pan; the liquid-passing pan being provided with a plurality of sliding grooves, the sliding grooves being provided with sliding columns; the length of the sliding columns being greater than the The thickness of the liquid-passing tray; the outer edge of the sliding groove is provided with an annular liquid-passing groove, the inner diameter of the liquid-passing groove is larger than the diameter of the sliding groove, and the inner and outer circles of the liquid-passing groove are connected by a connecting rod; the top of the sliding column is located above the liquid-passing tray and is provided with a counterweight retaining ring; the diameter of the counterweight retaining ring is larger than the outer diameter of the liquid-passing tray, so that the counterweight retaining ring can cover the liquid-passing tray; the lower end of the sliding column is located below the liquid-passing tray and is provided with a counterweight anti-falling disk, and the diameter of the counterweight anti-falling disk is larger than the diameter of the sliding groove.

[0005] Furthermore, an annular limiting platform is provided on the inner wall of the liquid outlet pipe, and the inner diameter of the limiting platform is smaller than the outer diameter of the mounting tube, so that the lower end of the mounting tube can be clamped on the top surface of the limiting platform.

[0006] Furthermore, the outer side wall of the mounting tube is provided with an external thread, and the inner side wall of the liquid outlet tube is provided with an internal thread matching the external thread, and the mounting tube is detachably connected to the liquid outlet tube via the external thread.

[0007] Furthermore, the top end of the mounting tube is provided with a plurality of disassembly grooves evenly arranged along the circumferential direction.

[0008] Furthermore, the delivery pump also includes a disassembly tool, which includes a disassembly rod and a disassembly claw. The number of the disassembly claws matches the number of the disassembly grooves and is evenly distributed in a circular array at the bottom end of the disassembly rod. The disassembly claws can be inserted into the disassembly grooves.

[0009] Furthermore, a sealing ring is provided below the counterweight retaining ring.

[0010] Furthermore, the diameter of the counterweight anti-separation disc is smaller than the inner diameter of the liquid passage groove.

[0011] Furthermore, a flange is provided above the liquid outlet pipe.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: a potassium sorbate solution delivery pump provided by the present invention can prevent liquid backflow from damaging the pump body by detachably installing a backflow prevention member in the liquid outlet pipe, and because the backflow prevention member is arranged in the liquid outlet pipe, no modification of the pump body itself is involved. Therefore, even if the backflow prevention member fails, it can be disassembled and replaced or cleaned without replacing the pump body, saving equipment cost and being very convenient to disassemble; the backflow prevention member is provided with a sliding column and a counterweight retaining ring, and when in use, the upward impact force of the liquid is used to push open the counterweight retaining ring, so that the liquid passage groove is opened to realize the infusion function. However, if the liquid refluxes, the gravity of the counterweight retaining ring and the downward pressure of the liquid will cause the counterweight retaining ring to close the liquid passage groove, preventing backflow, which is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the axonometric structure of the present invention;

[0014] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0015] Figure 3 Schematic diagram of the internal cross-sectional structure of the liquid outlet pipe;

[0016] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at A in the middle;

[0017] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0018] Figure 6 Schematic diagram of the disassembly tool. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 work are within the scope of protection of the present invention. For ordinary technicians in this field, the specific meanings of the terms in the present invention can be understood according to the specific circumstances.

[0020] The present invention provides a potassium sorbate solution delivery pump comprising a horizontal pump body 1, one end of which is transmission-connected to a motor 2 to drive the horizontal pump body 1. The horizontal pump body 1 is connected to a liquid inlet 3 and a liquid outlet, with the liquid outlet being located vertically on the upper side of the horizontal pump body 1. The liquid outlet end of the horizontal pump body 1 is connected to a liquid outlet pipe 4, which is provided with a backflow prevention member to prevent the delivered liquid from flowing back and damaging the horizontal pump body 1. The upper end of the liquid outlet pipe 4 is provided with a flange 5 for connecting to a pipeline.

[0021] The backflow prevention device includes a mounting tube 6, which is detachably connected to the inner wall of the liquid outlet pipe 4. A circular liquid-passing tray 7 is provided on the inner side of the mounting tube 6. The liquid-passing tray 7 is provided with a plurality of sliding grooves 8 extending vertically therethrough. Sliding posts 9 are provided to slide in the sliding grooves 8. The sliding posts 9 can move up and down in the sliding grooves 8. An annular liquid-passing groove 10 extending vertically therethrough is provided on the outer edge of the sliding groove 8. The inner diameter of the liquid-passing groove 10 is larger than the diameter of the sliding groove, and the inner and outer circles of the liquid-passing groove 10 are connected and fixed by a plurality of connecting rods 11. A circular counterweight retaining ring 12 is provided on the top of the sliding post 9. The counterweight retaining ring 12 is located above the liquid-passing tray 7 and has a diameter larger than the outer diameter of the liquid-passing groove 10, so that the counterweight retaining ring 12 can block the liquid-passing groove 10.

[0022] The length of the sliding column 9 is greater than the thickness of the liquid-passing pan 7, so that when the liquid below the liquid-passing pan 7 continuously impacts the counterweight retaining ring 12, the counterweight retaining ring 12 can be lifted and drive the sliding column 9 to move upward in the sliding groove 8, and the counterweight retaining ring 12 can be separated from the liquid-passing groove 10 upward, so that the liquid below the liquid outlet pipe 4 can pass through the gap between the liquid-passing groove 10 and the counterweight retaining ring 12, thereby realizing liquid circulation. When the liquid refluxes, the counterweight retaining ring 12, under the action of its own gravity and the downward pressure generated by the liquid on the upper side of the liquid outlet pipe 4, can block the liquid-passing groove 10, so that the liquid-passing groove 10 remains sealed, preventing the liquid from flowing back into the horizontal pump body 1 below the liquid-passing pan 7, thereby avoiding liquid reflux.

[0023] A counterweight anti-slip disc 13 is fixedly provided at the lower end of the sliding column 9. The counterweight anti-slip disc 13 is located below the liquid-passing disc 7, and the diameter of the counterweight anti-slip disc 13 is larger than the diameter of the sliding groove 8, so that the lower end of the sliding column 9 can be limited by the counterweight anti-slip disc 13, and the counterweight retaining ring 12 at the upper end of the sliding column 9 plays a role in limiting the upper end, thereby preventing the sliding column 9 from escaping from the sliding groove 8.

[0024] The counterweight retaining ring 12 and the counterweight anti-fall-off plate 13 both have a certain weight, so that in a natural state and when the fluid pressure in the horizontal pump body 1 is relatively low, the counterweight retaining ring 12 can cover the liquid passage groove 10, so that the space under the liquid passage plate 7 is sealed.

[0025] In the present invention, the number of the counterweight retaining ring 12 and the corresponding liquid passage groove 10 are both several and evenly distributed. As another alternative embodiment, the counterweight retaining ring 12 and the liquid passage groove 10 can both be one and be arranged at the center of the liquid passage tray 7.

[0026] An annular sealing ring 14 is provided below the counterweight retaining ring 12. The diameter of the sealing ring 14 is larger than the outer diameter of the liquid passage groove 10. This seals the counterweight retaining ring 12 and the liquid passage groove 10 when the delivery pump is not in use. As an optimized embodiment, the liquid passage pan 7 is provided with a sealing groove (not shown in the figure) that matches the sealing ring 14, which allows the sealing ring 14 to be located in the sealing groove, achieving a more effective seal.

[0027] An annular stop 15 is provided on the inner wall of the liquid outlet pipe 4. The inner diameter of the stop 15 is smaller than the outer diameter of the mounting tube 6, allowing the lower end of the mounting tube 6 to be snapped onto the top surface of the stop 15. The outer wall of the mounting tube 6 is provided with an external thread, and the inner wall of the liquid outlet pipe 4 is provided with an internal thread that matches the external thread. The external thread allows the mounting tube 6 to be detachably connected to the liquid outlet pipe 4, facilitating replacement and cleaning.

[0028] To facilitate disassembly, the top of the mounting tube 6 is provided with several disassembly grooves 16 evenly spaced along the circumference. This infusion pump is also equipped with a disassembly tool, which includes a disassembly rod 17 and disassembly claws 18. The number of disassembly claws 18 matches the number of disassembly grooves 16 and is evenly distributed in a circular array at the bottom of the disassembly rod 17. The disassembly claws 18 can be inserted into the disassembly grooves 16. During disassembly, the disassembly tool is lowered so that the disassembly claws 18 are inserted into the disassembly grooves 16. Then, rotating the disassembly rod 17 rotates the mounting tube 6, releasing its threaded connection with the liquid outlet tube 4 and allowing for smooth removal and placement.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A potassium sorbate solution delivery pump, characterized in that: and a tube connecting the dischar e side of the pump with a plug in the forward end of the crank case, said tube having a check valve in it at the pump end, and said former tube which connects the pump to the oil drain plug, said tube having a check valve in it at the pump end, and said former tube which connects the pump to the oil drain plug, said tube having a check valve in it at the pump end.

2. The potassium sorbate solution delivery pump according to claim 1, wherein: An annular limiting platform is provided on the inner wall of the liquid outlet pipe, and the inner diameter of the limiting platform is smaller than the outer diameter of the mounting tube, so that the lower end of the mounting tube can be clamped on the top surface of the limiting platform.

3. The potassium sorbate solution delivery pump according to claim 1, wherein: The outer wall of the installation tube is provided with an external thread, and the inner wall of the liquid outlet tube is provided with an internal thread matching the external thread. The installation tube is detachably connected to the liquid outlet tube via the external thread.

4. The potassium sorbate solution delivery pump according to claim 3, wherein: The top end of the mounting tube is provided with a plurality of disassembly grooves evenly arranged along the circumferential direction.

5. The potassium sorbate solution delivery pump according to claim 4, characterized in that: The delivery pump also includes a disassembly tool, which includes a disassembly rod and a disassembly claw. The number of the disassembly claws matches the number of the disassembly grooves and is evenly distributed in a circular array at the bottom end of the disassembly rod. The disassembly claws can be inserted into the disassembly grooves.

6. The potassium sorbate solution delivery pump according to claim 1, wherein: A sealing ring is provided below the counterweight retaining ring.

7. The potassium sorbate solution delivery pump according to claim 1, wherein: The diameter of the counterweight anti-fall-off disc is smaller than the inner diameter of the liquid passage groove.

8. The potassium sorbate solution delivery pump according to claim 1, wherein: A flange is provided above the liquid outlet pipe.

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