Proportioning pump for pressure-liquid proportioner

Abstract

The proportioning pump comprises a pump body, a liquid outlet pump pipe and a liquid inlet pump pipe, the pump body is installed between the liquid outlet pump pipe and the liquid inlet pump pipe, a dosing port is formed in the pump body, a liquid outlet is formed in the liquid outlet pump pipe, a liquid inlet is formed in the liquid inlet pump pipe, and the dosing port is communicated with the dosing port. Liquid filter cartridges are arranged between the pump body and the dosing port and between the liquid inlet pump pipe and the liquid inlet, supporting rings, compression springs, fixing rings and filter parts are arranged in the liquid filter cartridges, the compression springs are installed between the supporting rings and the fixing rings, and each filter part comprises a splitter plate, a flow guide cover, a supporting rod and a water filter cover; according to the design of filtering impurities in the liquid entering the pump body, the first filter gauze on the surface of the splitter plate serves as a first-layer filter design, and the filter ring and the filter gauze sleeve serve as a second-layer filter design, so that the liquid filter cartridge can be detached without detaching the pump body, and the impurities accumulated in the liquid filter cartridge can be cleaned conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of proportioning pumps, and in particular relates to a proportioning pump used for a pressure liquid proportioning device. Background Art

[0002] A hydraulic proportioner is a device for mixing multiple liquids. It uses a proportioning pump to transport two or more different liquids from a liquid storage device. The proportioning pump controls the flow rate and mixing time of different liquids so that they are evenly mixed in a predetermined proportion and then output and enter the use environment through a pipeline. The proportioning pump is a conventional metering pump. The proportioning pump principle is based on the principle of fluid mechanics. It controls the flow rate of different fluids by adjusting the opening of the valve, thereby achieving the proportioning requirements of two or more liquids.

[0003] When the proportioning pump is used for a long time to mix liquids, the conveyed liquid water flow contains impurities, and the impurities are precipitated in the pump body. The accumulation of impurities may cause the pump body to be blocked. It is relatively complicated to disassemble the proportioning pump and clean the impurities precipitated inside it. When the proportioning pump is used, there is a problem that there is no design to filter the impurities in the liquid entering the pump body. For this reason, the present application proposes a proportioning pump for a pressure liquid proportioner. Utility Model Content

[0004] The utility model aims to provide a proportioning pump for a pressure liquid proportioner to solve the problem that the proportioning pump proposed in the above background technology has no design for filtering impurities in the liquid entering the pump body.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a proportioning pump for a pressure liquid proportioner, comprising a pump body, a liquid outlet pump pipe and a liquid inlet pump pipe, the pump body is installed between the liquid outlet pump pipe and the liquid inlet pump pipe, the pump body is provided with a dosing port, the liquid outlet pump pipe is provided with a liquid outlet, the liquid inlet pump pipe is provided with a liquid inlet, a liquid filter cartridge is provided between the pump body and the dosing port, and between the liquid inlet pump pipe and the liquid inlet, the interior of the liquid filter cartridge is provided with a support ring, a compression spring, a fixed ring and a filter element, the compression spring is installed at a position between the support ring and the fixed ring, the filter element comprises a diverter plate, a guide cover and a support rod, and a water filter cover, the surface of the diverter plate is provided with a first filter gauze, the surface of the bottom end of the water filter cover is provided with a liquid storage tank, the outer surface of the middle position of the water filter cover is provided with a filter ring, the outer surface of the filter ring is provided with a filter gauze sleeve, and a water leakage hole is opened at the center position of the top of the water filter cover.

[0006] Preferably, a diversion hole is opened on the surface of the diversion plate, and a fixed hemisphere is provided in the middle position of the diversion plate, and the fixed hemisphere passes through the center position of the first filter mesh.

[0007] Preferably, the air guide cover is a conical structure with one end wide and the other end narrow, the center of the air guide cover and the center of the diverter plate are on the same axis, one end of the support rod is connected to the inner surface of the air guide cover, and the axis of the support rod is parallel to the axis of the air guide cover.

[0008] Preferably, the water filter cover includes an upper cone and a lower circular plate, the liquid storage tank is located on the surface of the lower circular ring body, the filter ring is distributed on the outer surface of the upper cone, the narrow end of the upper cone is sealed, and the leakage holes are distributed on the sealed end surface of the upper cone.

[0009] Preferably, the filter ring is a ring tube structure with one end wide and the other end narrow, the center of the filter ring and the center of the upper cone are on the same axis, and the inner surface of the liquid storage tank is connected to the outer surface of the upper cone in a transition curve.

[0010] Preferably, the support ring includes an outer ring, a connecting rod and a middle block, the two ends of the connecting rod are respectively connected to the outer ring and the middle block, the middle block is a "T"-shaped structure, the outer ring is a ring-shaped structure with one end wide and the other end narrow, and the inner surface of the water filter cover is consistent with the outer surface of the outer ring.

[0011] Preferably, a groove is provided at the center of the fixing ring, one end of the compression spring is received in the groove, and the other end of the compression spring is sleeved on the outside of the middle round block, and an elliptical water flow hole is opened on the surface of the fixing ring.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, there is a design for filtering impurities in the liquid entering the pump body. The first filter mesh on the surface of the diverter plate is designed as a first layer of filtration, and the filter ring and the filter gauze sleeve are designed as a second layer of filtration. The liquid filter cartridge can be disassembled without disassembling the pump body, so that the impurities accumulated inside the liquid filter cartridge can be cleaned up. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a cross-sectional structural schematic diagram of the liquid filter cartridge of the utility model;

[0016] Figure 3 It is a schematic diagram of the top view of the diverter plate of the utility model;

[0017] Figure 4 For the utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0018] Figure 5 It is a schematic diagram of the top view of the water filter cover of the utility model;

[0019] Figure 6It is a schematic diagram of the top view of the support ring of the utility model;

[0020] Figure 7 It is a schematic diagram of the top view of the fixing ring of the utility model;

[0021] In the figure: 1. pump body; 2. liquid outlet pump pipe; 3. liquid inlet pump pipe; 4. liquid filter cartridge; 5. diverter plate; 7. water filter cover; 8. support ring; 9. compression spring; 10. fixing ring; 11. dosing port; 21. liquid outlet; 31. liquid inlet; 51. first filter gauze; 61. flow guide cover; 62. support rod; 71. liquid storage tank; 72. filter ring; 73. filter gauze sleeve; 74. water leakage hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example

[0024] See also Figures 1 to 7The utility model provides a technical solution: a proportioning pump for a pressure liquid proportioner, comprising a pump body 1, a liquid outlet pump pipe 2 and a liquid inlet pump pipe 3, the pump body 1 is installed between the liquid outlet pump pipe 2 and the liquid inlet pump pipe 3, a dosing port 11 is provided on the pump body 1, a liquid outlet port 21 is provided on the liquid outlet pump pipe 2, and a liquid inlet port 31 is provided on the liquid inlet pump pipe 3, the pharmaceutical liquid and the clean water liquid enter from the dosing port 11 and the liquid inlet port 31 respectively, the pump body 1 mixes the liquid, the mixed liquid flows out from the liquid outlet port 21, and is transported to other application scenarios through a pipeline; the pump body 1 and the dosing port 11 A liquid filter cartridge 4 is provided between the liquid inlet pump pipe 3 and the liquid inlet port 31. The liquid filter cartridge 4 plays the role of filtering impurities in the liquid. A support ring 8, a compression spring 9, a fixing ring 10 and a filter element are provided inside the liquid filter cartridge 4. The compression spring 9 is installed at a position between the support ring 8 and the fixing ring 10. The compression spring 9 is always in a contracted state. The compression spring 9 generates elastic force on the support ring 8 and the water filter cover 7, which is conducive to taking out the water filter cover 7. The fixing ring 10 and the liquid filter cartridge 4 are split structures. The filter element includes a diverter plate 5, a guide cover 61 and a support rod 6. 2. and the water filter cover 7. The surface of the diverter plate 5 is provided with a first filter screen 51. The first filter screen 51 filters the impurities contained in the fluid passing through. The diverter plate 5 diverts the liquid, which is conducive to the large particles of impurities in the liquid being filtered out by the first filter screen 51. The filtered liquid falls on the outer surface of the guide cover 61. The guide cover 61 guides the liquid to the inner wall of the liquid filter cylinder 4. The surface of the bottom end of the water filter cover 7 is provided with a liquid storage tank 71. The diverted liquid falls into the liquid storage tank 71. After the liquid accumulates, it passes through the filter ring 72 and the filter gauze sleeve 73, and the liquid is further filtered. A filter ring 72 is provided on the outer surface in the middle of the water filter cover 7, and a filter yarn sleeve 73 is provided on the outer surface of the filter ring 72. The filter ring 72 diverts the liquid, and the filter yarn sleeve 73 filters impurities in the liquid. A leakage hole 74 is provided at the center position of the top of the water filter cover 7, which does not affect the liquid passing through the water filter cover 7, so that the liquid entering the pump body 1 is filtered to prevent impurities from being precipitated inside the pump body 1. The liquid filter cartridge 4 is connected to the pump body 1 and the liquid inlet pump pipe 3 by conventional methods, and the impurities accumulated inside the liquid filter cartridge 4 can be cleaned without disassembling the pump body 1.

[0025] In this embodiment, a diversion hole is opened on the surface of the diverter plate 5, and a fixed hemisphere is provided in the middle position of the diverter plate 5. The fixed hemisphere passes through the center position of the first filter mesh 51 to limit the first filter mesh 51. The first filter mesh 51 filters the impurities contained in the passing fluid. The diverter plate 5 diverts the liquid, which is conducive to the large particles of impurities in the liquid being filtered out by the first filter mesh 51.

[0026] In this embodiment, the guide cover 61 is a conical structure with one end wide and the other end narrow. The center of the guide cover 61 and the center of the diverter plate 5 are on the same axis. One end of the support rod 62 is connected to the inner surface of the guide cover 61, and the axis of the support rod 62 is parallel to the axis of the guide cover 61. The filtered liquid falls on the outer surface of the guide cover 61, and the guide cover 61 guides the liquid to the inner wall of the liquid filter cylinder 4, so that the guided liquid falls into the liquid storage tank 71.

[0027] In this embodiment, the water filter cover 7 includes an upper cone and a lower circular plate body, the liquid storage tank 71 is located on the surface of the lower circular ring body, the filter ring 72 is distributed on the outer surface of the upper cone, the narrow end of the upper cone is sealed, and the leakage holes 74 are distributed on the sealed end surface of the upper cone. The filter ring 72 is a ring tube structure with one end wide and the other end narrow. The center of the filter ring 72 and the center of the upper cone are on the same axis. The inner surface of the liquid storage tank 71 is connected to the outer surface of the upper cone in a transition curve, and the guided liquid falls into the liquid storage tank 71. After the liquid accumulates, it passes through the filter ring 72 and the filter gauze sleeve 73, and the liquid is further filtered.

[0028] In this embodiment, the support ring 8 includes an outer ring, a connecting rod and a middle block. The two ends of the connecting rod are respectively connected to the outer ring and the middle block. The middle block is a "T"-shaped structure. The outer ring is a ring-mounted structure with one end wide and the other end narrow. The inner surface of the water filter cover 7 is consistent with the outer surface of the outer ring. A groove is provided at the center position of the fixed ring 10. One end of the compression spring 9 is inserted into the groove. The other end of the compression spring 9 is sleeved on the outer side of the middle block. An elliptical water flow hole is opened on the surface of the fixed ring 10. The compression spring 9 is installed between the support ring 8 and the fixed ring 10. The compression spring 9 is always in a contracted state. The compression spring 9 generates elastic force on the support ring 8 and the water filter cover 7, which is conducive to taking out the water filter cover 7.

[0029] The working principle and use process of this utility model:

[0030] When the proportioning pump is used, different liquids enter the pump body 1 and the liquid inlet pump pipe 3 respectively and first flow through the liquid filter cartridge 4, the first filter screen 51 filters the impurities contained in the fluid passing through, and the diverter plate 5 diverts the liquid;

[0031] The filtered liquid falls on the outer surface of the guide cover 61, and the guide cover 61 guides the liquid to the inner wall of the liquid filter cartridge 4, so that the guided liquid falls into the liquid storage tank 71;

[0032] The liquid in the liquid storage tank 71 accumulates and passes through the filter ring 72 and the filter yarn sleeve 73, and the liquid is further filtered. The liquid leaks out from the leaking hole 74, and then passes through the support ring 8 and the fixing ring 10 and enters the pump body 1 and the liquid inlet pump pipe 3;

[0033] The liquid filter cartridge 4 is combined with the pump body 1 and the liquid inlet pump tube 3 by conventional methods. The liquid filter cartridge 4 can be disassembled without disassembling the pump body 1, so that the impurities accumulated inside the liquid filter cartridge 4 can be cleaned easily.

[0034] To sum up: there is a design for filtering impurities in the liquid entering the pump body 1. The first filter mesh 51 on the surface of the diverter plate 5 is designed as a single layer of filtration, and the filter ring 72 and the filter gauze sleeve 73 are designed as a second layer of filtration. The liquid filter cartridge 4 can be disassembled without disassembling the pump body 1, so that the impurities accumulated inside the liquid filter cartridge 4 can be cleaned.

[0035] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood 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 present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A proportioning pump for a pressure liquid proportioning device, comprising a pump body (1), a liquid outlet pump pipe (2) and a liquid inlet pump pipe (3), wherein the pump body (1) is installed between the liquid outlet pump pipe (2) and the liquid inlet pump pipe (3), the pump body (1) is provided with a dosing port (11), the liquid outlet pump pipe (2) is provided with a liquid outlet (21), and the liquid inlet pump pipe (3) is provided with a liquid inlet (31), characterized in that: A liquid filter cartridge (4) is provided between the pump body (1) and the dosing port (11), and between the liquid inlet pump pipe (3) and the liquid inlet port (31). A support ring (8), a compression spring (9), a fixing ring (10) and a filter element are provided inside the liquid filter cartridge (4). The compression spring (9) is installed between the support ring (8) and the fixing ring (10). The filter element comprises a diverter plate (5), a flow guide cover (61), a support rod (62), and a water filter cover (7). A first filter gauze (51) is provided on the surface of the diverter plate (5). A liquid storage tank (71) is provided on the surface of the bottom end of the water filter cover (7). A filter ring (72) is provided on the outer surface of the middle position of the water filter cover (7). A filter gauze sleeve (73) is provided on the outer surface of the filter ring (72). A water leakage hole (74) is provided at the center position of the top end of the water filter cover (7).

2. A proportioning pump for a pressure liquid proportioning device according to claim 1, characterized in that: The surface of the diverter plate (5) is provided with diverter holes, and a fixed hemisphere is provided in the middle of the diverter plate (5), and the fixed hemisphere penetrates the center of the first filter screen (51).

3. A proportioning pump for a pressure liquid proportioning device according to claim 1, characterized in that: The air guide cover (61) is a conical structure with one end wide and the other end narrow. The center of the air guide cover (61) and the center of the diverter plate (5) are on the same axis. One end of the support rod (62) is connected to the inner surface of the air guide cover (61), and the axis of the support rod (62) is parallel to the axis of the air guide cover (61).

4. A proportioning pump for a pressure liquid proportioning device according to claim 1, characterized in that: The water filter cover (7) comprises an upper cone and a lower circular plate, the liquid storage tank (71) is located on the surface of the lower circular plate, the filter ring (72) is distributed on the outer surface of the upper cone, the narrow end of the upper cone is sealed, and the water leakage holes (74) are distributed on the sealed end surface of the upper cone.

5. A proportioning pump for a pressure liquid proportioning device according to claim 4, characterized in that: The filter ring (72) is a ring tube structure with one end wide and the other end narrow. The center of the filter ring (72) and the center of the upper cone are on the same axis. The inner surface of the liquid storage tank (71) is connected to the outer surface of the upper cone in a transitional bend.

6. A proportioning pump for a pressure liquid proportioning device according to claim 1, characterized in that: The support ring (8) comprises an outer ring, a connecting rod and a middle block, the two ends of the connecting rod are respectively connected to the outer ring and the middle block, the middle block is a "T"-shaped structure, the outer ring is a ring-shaped structure with one end wide and the other end narrow, and the inner surface of the water filter cover (7) is consistent with the outer surface of the outer ring.

7. A proportioning pump for a pressure liquid proportioning device according to claim 6, characterized in that: A groove is provided at the center of the fixing ring (10), one end of the compression spring (9) is received in the groove, and the other end of the compression spring (9) is sleeved on the outside of the middle round block. An elliptical water flow hole is provided on the surface of the fixing ring (10).

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