CN215762196U

CN215762196U - Multi-way flow control pump

Info

Publication number: CN215762196U
Application number: CN202121983973.3U
Authority: CN
Inventors: 周如景
Original assignee: Zhongshan Willpower Motor & Electric Appliance Co ltd
Current assignee: Zhongshan Willpower Motor & Electric Appliance Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-02-08
Anticipated expiration: 2031-08-23

Abstract

The utility model discloses a multi-path flow control pump, which comprises a pump head body, wherein a pressurizing cavity, a water outlet cavity and a vacuum cavity are arranged in the pump head body, a first water outlet, a second water outlet and a water inlet are arranged on the pump head body, the vacuum cavity is communicated with the pressurizing cavity, the pressurizing cavity is communicated with the water outlet cavity, a flow control assembly is formed on a water path communicated with the water inlet and the vacuum cavity, a switching rod is arranged on the flow control assembly, a lining is also arranged in the pump head body, an inner cavity used for sliding the switching rod is arranged in the lining, the inner cavity is communicated with the first water outlet, a plurality of through holes communicated with the inner cavity are circumferentially and annularly distributed at the lower end of the lining, the through holes are communicated with the water outlet cavity, a water outlet groove is arranged in the pump head body, and a cut-off assembly used for controlling the water path at the water outlet groove to be sealed or communicated is arranged at the water outlet groove. The utility model is used for meeting the requirement that the flow control pump can effectively switch water paths, and can realize that two water outlets simultaneously supply water for a clean drinking system, thereby enhancing the applicability of the flow control pump.

Description

Multi-way flow control pump

Technical Field

The utility model relates to the technical field of fluid conveying, in particular to a multi-path flow control pump.

Background

With the development of economy, more and more household water purifying and drinking machines enter thousands of households.

In the existing household water purifying and drinking machine systems, the water purifying and drinking machine systems are mostly divided into normal-temperature water and refrigerating and heating water paths, two water paths are divided through a water outlet of a water supply pump, electromagnetic valves are respectively installed on the corresponding water paths, and the opening of the electromagnetic valves is controlled through a control panel, so that the water outlet of a water faucet can be controlled according to needs; in the system, the complex pipeline distribution and more control parts are needed to realize the functions, so that the process cost of the whole system is higher, the system structure is complex, and the failure rate is higher, so that related personnel develop the flow control pump with two-way water outlet, the water supply to a warm water waterway and a refrigerating and heating waterway can be respectively controlled by one pump, the switching of the waterways is realized by the change of voltage, but inside the existing flow control pump, when the switching rod switches the waterways, only one of the water outlet waterways can be independently opened, the water outlet waterway supplies water for the normal-temperature water or the refrigerating and heating waterway, so that the flow control pump can only realize single water supply, and can not realize the water supply of the two water outlets for the normal-temperature waterway and the refrigerating and heating waterway of the water purification system at the same time, and the applicability of the flow control pump is poorer.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a multi-path flow control pump, which is used for realizing that two water outlets simultaneously supply water for a clean drinking system after the requirement that the flow control pump can effectively switch water paths is met, and the applicability of the flow control pump is enhanced.

In order to solve the technical problem, the utility model adopts the following scheme:

a multi-path flow control pump comprises a pump body, wherein a pressurizing cavity, a water outlet cavity and a vacuum cavity are arranged in the pump body, a first water outlet, a second water outlet and a water inlet are arranged on the pump body, the vacuum cavity is communicated with the pressurizing cavity through a water inlet groove and a water inlet one-way structure, the pressurizing cavity is communicated with the water outlet cavity through a water outlet one-way structure, a water sealing sleeve ring and a flow control assembly for controlling the water path sealing or the communication of the water sealing sleeve ring are formed on the water path where the water inlet and the vacuum cavity are communicated, a switching rod for controlling the communication or the communication of the first water outlet and the second water outlet with the water outlet cavity is arranged on the flow control assembly, a lining is further arranged in the pump body, an inner cavity for the sliding of the switching rod is arranged in the lining, the inner cavity is communicated with the first water outlet, a plurality of through holes communicated with the inner cavity are annularly distributed at the lower end of the lining, the through holes are communicated with the water outlet cavity, a water outlet groove for communicating the water path between the second water outlet and the water outlet cavity is arranged in the pump body, and a water cut-off assembly for controlling the water path sealing or conduction at the water outlet groove is arranged at the water outlet groove.

Compared with the prior art, when the water path is switched by the existing flow control pump, the switching rod can only ensure that one water outlet of the two water outlets is conducted, the other water outlet is sealed, and the two water outlets can not supply water to a clean drinking system simultaneously, in the scheme, a matched bushing is arranged in a pump head body, a cavity is arranged in the bushing, a plurality of through holes communicated with the cavity are circumferentially arranged at the lower end of the bushing, the diameter of each through hole is smaller than an opening communicated with a water outlet cavity in the existing flow control pump, in order to ensure the water passing amount, a plurality of through holes are arranged, the water paths between the through holes and the water outlet cavity are communicated, the water paths between the cavity and a first water outlet and a second water outlet are communicated, and the switching rod and the inner wall of the cavity are sealed, so that the water can be effectively prevented from entering the first water outlet from an installation gap between the switching rod and the inner wall of the cavity, when the flow control pump works, the switching rod moves downwards under the action of the flow control assembly, when the sealing position between the switching rod and the inner cavity wall does not exceed the through hole, the water path between the first water inlet and the through hole is blocked, the water path between the second water outlet and the through hole is in a conducting state, the second water outlet can be communicated with a heating or refrigerating water path of the clean drinking system to provide water source for the clean drinking system, the switching rod moves downwards continuously along with the increase of the voltage (power) of the flow control pump, when the sealing position between the switching rod and the inner cavity wall exceeds the through hole, the water path between the second water outlet and the through hole is blocked, the water path between the first water outlet and the through hole is communicated, water enters the inner cavity above the sealing position between the switching rod and the inner cavity wall through the through hole and then enters the first water outlet to supply water for the water path in the clean drinking system at normal temperature, and the working voltage (power) of the flow control pump continues to increase, the switching rod continues to move downwards, when the lower end of the switching rod enters the water outlet groove and pushes the cutoff component to move downwards, the water path between the water outlet cavity and the water outlet groove is communicated, at the moment, under the condition that the water path between the second water outlet and the water outlet channel is blocked by the switching rod, water in the water outlet cavity enters the second water outlet through the water outlet groove, so that the second water outlet can supply water for a refrigerating/heating system of a water purification system, meanwhile, the first water outlet also supplies a large amount of water for a normal-temperature water path of the water purification system, so that the working voltage (power) of the flow control pump is adjusted to adjust the first water outlet and the second water outlet and supply water for the water purification system at the same time, and the applicability of the flow control pump is stronger.

Preferably, the cutoff component comprises a blocking plug and a compression spring, the blocking plug is sleeved on the water outlet groove and can slide up and down in the water outlet groove, one end of the compression spring acts on the blocking plug, the other end of the compression spring acts on a water outlet one-way structure, and the blocking plug controls the sealing or the conduction of a water path at the water outlet groove under the combined action of the thrust of the switching rod and the elasticity of the compression spring.

Preferably, the flow control assembly comprises a control rod, a return spring and a pressure sensing plate, the upper end of the control rod is connected with the bottom surface of the pressure sensing plate, the lower end of the control rod is connected with a switching rod, the periphery of the pressure sensing plate is in sealing contact with the side wall of the vacuum cavity, the upper end of the pump head body is provided with a valve cover, an atmosphere cavity is formed between the pressure sensing plate and the valve, and an atmosphere hole for communicating the atmosphere cavity is formed in the valve cover; the side wall of the control rod is provided with a flow limiting groove, the control rod is sequentially provided with a first sealing ring, a supporting sleeve ring and a second sealing ring in the circumferential direction, the supporting sleeve ring is provided with a water inlet hole communicated with the water inlet, and the first sealing ring, the supporting sleeve ring, the second sealing ring and the pressing sleeve ring are tightly pressed between the water sealing sleeve ring and the lining; one end of the return spring acts on the bottom surface of the pressure sensing plate, the other end of the return spring acts on the water sealing lantern ring, and the control rod forms a flow control assembly for sealing or conducting a water path between the water inlet and the vacuum cavity under the combined action of the air pressure in the atmosphere cavity, the pressure in the vacuum cavity and the return spring.

Preferably, the periphery of the lining is sleeved with a third sealing ring, and the third sealing ring is positioned between the through hole and the first water outlet. The third sealing ring is used for sealing an installation gap between the lining and the inner wall of the pump head body, and the phenomenon that the water in the water outlet flow channel enters the first water outlet before being extracted by water is avoided.

Preferably, the periphery of the pressure sensing plate and the side wall of the vacuum cavity are sealed through a fourth sealing ring. The fourth sealing ring is used for sealing a gap between the side face of the pressure sensing plate and the inner side wall of the vacuum cavity, so that water in the vacuum cavity is prevented from entering the atmospheric cavity and then flowing out of the atmospheric cavity to the outside to cause water seepage of the flow control pump.

Preferably, the periphery of the lower end of the switching rod is sealed with the side wall of the inner cavity through a fifth sealing ring. The fifth sealing ring is used for sealing a gap between the side wall of the switching rod and the inner cavity wall, and prevents source water from entering the inner cavity above the fifth sealing ring in advance through the gap to cause water flow to pass through the first water outlet, so that the switching rod can be influenced in switching the water channel.

Preferably, a water outlet flow passage formed by the pump head body is arranged between the through hole and the water outlet cavity.

Preferably, the side wall of the bushing is provided with a water outlet hole for communicating a water channel between the inner cavity and the first water outlet. When the fifth sealing ring moves downwards along with the switching rod and exceeds the through hole, water in the water outlet flow channel enters the inner cavity of the lining through the through hole and is conveyed to a normal-temperature water pipeline of the water purifying and drinking system from the first water outlet through the water outlet hole.

The utility model has the following beneficial effects:

1. according to the utility model, as the working voltage (power) of the flow control pump continues to increase, the switching rod continues to move downwards, when the lower end of the switching rod enters the water outlet groove and pushes the sealing plug to move downwards, the sealing plug downwards extrudes the compression spring to connect the water path between the water outlet cavity and the water outlet groove, at the moment, under the condition that the water path between the second water outlet and the water outlet channel is blocked by the switching rod, water in the water outlet cavity enters the second water outlet through the water outlet groove, so that the second water outlet can supply water for a refrigeration/heating system of a water purification system, meanwhile, the first water outlet also supplies a large amount of water for a normal-temperature water path of the water purification system, and thus, the working voltage (power) of the flow control pump is adjusted to adjust the first water outlet and the second water outlet and supply water for the water purification system at the same time, so that the applicability of the flow control pump is stronger.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Reference numerals: 01-water inlet, 02-second sealing ring, 03-bushing, 04-third sealing ring, 05-through hole, 06-water outlet flow channel, 07-water outlet groove, 08-sealing plug, 09-compression spring, 10-water outlet cavity, 11-motor, 12-bottom cover, 13-pressurizing cavity, 14-water inlet groove, 15-fifth sealing ring, 16-water outlet hole, 17-second water outlet, 18-switching rod, 19-first water outlet, 20-supporting lantern ring, 21-water sealing lantern ring, 22-flow limiting groove, 23-vacuum cavity, 24-pressure sensing plate, 25-atmospheric cavity, 26-atmospheric hole, 27-valve cover, 28-fourth sealing ring, 29-return spring, 30-control rod, 31-pump head body, 32-water inlet one-way structure, 33-water outlet one-way structure, 34-water inlet hole and 35-first sealing ring.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "open," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1, a multi-path flow control pump includes a pump head body 31, a pressure increasing cavity 13, a water outlet cavity 10, and a vacuum cavity 23 are provided in the pump head body 31, a first water outlet 19, a second water outlet 17, and a water inlet 01 are provided on the pump head body 31, water in the vacuum cavity 23 enters the pressure increasing cavity 13 after passing through a water inlet 14 and a water inlet unidirectional structure 32, the pressure increasing cavity 13 is communicated with the water outlet cavity 10 through a water outlet unidirectional structure 33, a water sealing collar 21 and a flow control assembly for controlling the sealing or conduction of the water path at the water sealing collar 21 are formed on the water path through which the water inlet 01 and the vacuum cavity 23 are communicated, a switch rod 18 for controlling the communication or the blocking of the first water outlet 19 and the second water outlet 17 with the water outlet cavity 10 respectively is provided on the flow control assembly, a bushing 03 is further provided in the pump head body 31, a switching inner cavity for sliding the switch rod 18 is provided in the bushing 03, and the inner cavity is communicated with the first water outlet 19 through a water outlet 16, the lower extreme circumference of bush 03 is a plurality of through-holes 05 that communicate with the inner chamber that annularly distribute, through-hole 05 and play water cavity 10 are through going out water flow channel 06 switch-on, be equipped with in the pump head body 31 and lead to the play basin 07 in the second delivery port 17 and play water cavity 10 water route, it is equipped with the cutout subassembly that is used for controlling the sealed or switch-on water route of play basin 07 department to go out basin 07 department.

The water cut-off assembly comprises a blocking plug 08 and a compression spring 09, the blocking plug 08 is sleeved on the water outlet groove 07 and can slide up and down in the water outlet groove 07, one end of the compression spring 09 acts on the blocking plug 08, the other end of the compression spring 09 acts on the water outlet one-way structure 33, and the blocking plug 08 controls the sealing or the conduction of a water path at the water outlet groove 07 under the combined action of the thrust of the switching rod 18 and the elasticity of the compression spring 09.

In this embodiment, a matching bushing 03 is installed in the pump head body 31, a cavity is provided inside the bushing 03, a plurality of through holes 05 communicating with the cavity are provided at the lower end of the bushing 03 in the circumferential direction, the diameter of each through hole 05 is smaller than an opening communicating with the water outlet cavity 10 inside the existing flow control pump, in order to ensure the water passing amount, a plurality of through holes 05 are provided, the through holes 05 communicate with the water outlet cavity 10 via water paths, the cavity communicates with the water paths between the first water outlet 19 and the second water outlet 17, and the switching rod 18 is sealed with the inner wall of the cavity by a fifth sealing ring 15, so that water can be effectively prevented from entering the first water outlet 19 from an installation gap between the switching rod 18 and the inner wall of the cavity, when the flow control pump works, the switching rod 18 moves downward under the action of the flow control assembly, and when the fifth sealing ring 15 does not exceed the through hole 05, the water path between the first water inlet 01 and the through hole 05 is blocked, the waterway between the second water outlet 17 and the through hole 05 is in a conducting state, the second water outlet 17 can be communicated with a heating or refrigerating waterway of a clean drinking system to provide water source for the waterway, the switching rod 18 continuously moves downwards along with the increase of the voltage (power) of the flow control pump, when the fifth sealing ring 15 exceeds the through hole 05, the waterway between the second water outlet 17 and the through hole 05 is blocked, the waterway between the first water outlet 19 and the through hole 05 is communicated, water enters the inner cavity above the sealing position of the switching rod 18 and the inner cavity wall through the through hole 05 and then enters the first water outlet 19 to supply water for the normal temperature waterway in the clean drinking system, the rod 18 continuously moves downwards along with the continuous increase of the working voltage (power) of the flow control pump, when the lower end of the switching rod 18 enters the water outlet switching groove 07 and pushes the sealing plug 08 and the compression spring 09 to move downwards, so that the waterway between the water outlet cavity 10 and the water outlet groove 07 is communicated, at this time, under the condition that the water path between the second water outlet 17 and the water outlet channel 06 is blocked by the switching rod 18, water in the water outlet cavity 10 enters the second water outlet 17 through the water outlet groove 07, so that the second water outlet 17 can supply water for a refrigeration/heating system of the clean drinking system, and meanwhile, the first water outlet 19 also supplies a large amount of water for a normal-temperature water path of the clean drinking system, so that the working voltage (power) of the flow control pump is adjusted to adjust the first water outlet 19 and the second water outlet 17 to supply water for the clean drinking system at the same time, and the applicability of the flow control pump is stronger.

Example 2

As shown in fig. 1, the flow control assembly includes a control rod 30, a return spring 29, and a pressure sensing plate 24, wherein the upper end of the control rod 30 is connected with the bottom surface of the pressure sensing plate 24, the lower end of the control rod 30 is connected with the switching rod 18, the periphery of the pressure sensing plate 24 is in sealed contact with the side wall of the vacuum chamber 23, the upper end of the pump head body 31 is provided with a valve cover 27, an atmosphere chamber 25 is formed between the pressure sensing plate 24 and the valve, and the valve cover 27 is provided with an atmosphere hole 26 for communicating the atmosphere chamber 25; the side wall of the control rod 30 is provided with a flow limiting groove 22, the control rod 30 is sequentially provided with a first sealing ring 35, a supporting sleeve ring 20 and a second sealing ring 02 in the circumferential direction, the supporting sleeve ring 20 is provided with a water inlet hole 34 communicated with the water inlet 01, the first sealing ring 35, the supporting sleeve ring 20, the second sealing ring 02 and the pressing sleeve ring are tightly pressed between the water sealing sleeve ring 21 and the lining 03, and the first sealing ring 35 and the second sealing ring 02 prevent water at the water inlet 01 from entering the vacuum cavity 23 when the control rod 30 does not move downwards; one end of a return spring 29 acts on the bottom surface of the pressure sensing plate 24, the other end acts on the water sealing sleeve ring 21, and the control rod 30 forms a flow control assembly for sealing or communicating a water path between the water inlet 01 and the vacuum cavity 23 under the combined action of the air pressure in the atmosphere cavity 25, the pressure in the vacuum cavity 23 and the return spring 29.

The principle of the operator of this embodiment: when the flow control pump does not work, the sum of the acting force of the pressure in the vacuum cavity 23 and the elastic force of the return spring 29 on the pressure sensing plate 24 is larger than the acting force of the air pressure in the atmosphere cavity 25 on the pressure sensing plate 24, and the control rod 30 seals a water channel between the water inlet hole 34 and the vacuum cavity 23 under the combined action of the acting forces; when the flow control pump works, water flow or air in the vacuum cavity 23 is sucked away to form a certain vacuum degree, at the moment, the sum of acting forces of the pressure in the vacuum cavity 23 and the elastic force of the return spring 29 on the pressure sensing plate 24 is smaller than the acting force of the pressure in the atmosphere cavity 25 on the pressure sensing plate 24, the control rod 30 moves downwards (in the direction of the water outlet groove 07) under the combined action of the acting forces, the side wall of the control rod 30 is provided with the flow limiting groove 22, namely the lower end of the control rod 30 is not provided with the flow limiting groove 22, the side wall above the lower end and below the pressure sensing plate 24 is provided with the flow limiting groove 22, the part of the lower end of the control rod 30 without the flow limiting groove 22 completely moves downwards to the upper end of the water inlet hole 34, and when the control rod continues to move downwards, the water inlet 01 is communicated with the vacuum cavity 23 through the flow limiting groove 22 and the water inlet hole 34. When the flow restricting groove 22 of the control lever 30 just moves down to the upper end of the water inlet hole 34, the flow passage through which the water inlet 01 is communicated with the vacuum chamber 23 through the flow restricting groove 22 is small, the flow rate pumped by the flow control pump is small, and if the control lever 30 continues to move down and the part of the control lever 30 with the flow restricting groove 22 moves down to exceed the lower end of the water inlet hole 34, the flow passage area through which the water inlet 01 is communicated with the vacuum chamber 23 through the flow restricting groove 22 is increased, and the flow rate pumped by the flow control pump is increased. Therefore, by adjusting the working voltage (power) of the flow control pump, the vacuum in the vacuum cavity 23 can be adjusted, and further the distance of the control rod 30 moving downwards is adjusted, so that the function of adjusting the output flow of the flow control pump is achieved, meanwhile, the control rod 30 moving upwards and downwards can also drive the switching rod 18 to move upwards and downwards, and further the working voltage (power) of the flow control pump is adjusted, so that the switching function of adjusting the connection or blocking of the water channel between the first water outlet 19 and the second water outlet 17 and the through hole 05 is achieved, and the first water outlet 19 and the second water outlet 17 are adjusted to supply water for the clean drinking system at the same time, so that the applicability of the flow control pump is stronger.

Example 3

The periphery of the bushing 03 is sleeved with a third sealing ring 04, and the third sealing ring 04 is located between the through hole 05 and the first water outlet 19. The third sealing ring 04 is used for sealing an installation gap between the bushing 03 and the inner wall of the pump head body 31, so that water in the water outlet flow passage 06 is prevented from entering the first water outlet 19 in advance.

The periphery of the pressure sensing plate 24 is sealed with the side wall of the vacuum cavity 23 by a fourth sealing ring 28. The fourth sealing ring 28 is used for sealing a gap between the side surface of the pressure sensing plate 24 and the inner side wall of the vacuum chamber 23, so as to prevent water in the vacuum chamber 23 from entering the atmosphere chamber 25 and then flowing out of the atmosphere hole 26 to the outside, which causes water seepage of the flow control pump.

The working principle of the utility model is as follows: when the flow control pump works, source water enters the water inlet hole 34 through the water inlet 01, the pressurizing cavity 13 is extruded under the action of the motor 11, water flow or air in the vacuum cavity 23 is sucked away to form a certain vacuum degree, at the same time, the sum of the pressure in the vacuum cavity 23 and the acting force of the elastic force of the return spring 29 on the pressure sensing plate 24 is smaller than the acting force of the pressure in the atmospheric cavity 25 on the pressure sensing plate 24, the control rod 30 moves downwards under the combined action of the acting forces, the switching rod 18 is driven to move downwards, the fifth sealing ring 15 is positioned above the through hole 05, a water path between the first water inlet 01 and the water outlet cavity 10 is blocked, the water path between the second water outlet 17 and the water outlet cavity 10 is communicated, the part without the limit flow groove 22 at the lower end of the control rod 30 completely moves downwards to the upper end of the water inlet hole 34, and then continues to move downwards, at the same time, the water inlet 01 passes through the flow limit flow groove 22, The water inlet hole 34 is communicated with the vacuum cavity 23, source water enters the vacuum cavity 23, enters the water inlet groove 14 through a water path, enters the pressurizing cavity 13 through the water inlet one-way structure 32, is extruded into the water outlet cavity 10 through the water outlet one-way structure 33, and enters the second water outlet 17 through the water outlet flow channel 06 and the through hole 05 to supply water for a refrigerating or heating pipeline of the clean drinking system; the working voltage (power) of the flow control pump continues to increase, the control rod 30 continues to move downwards, the part of the control rod 30 with the flow limiting groove 22 moves downwards to exceed the lower end of the water inlet hole 34, the flow passage area of the water inlet 01 communicated with the vacuum cavity 23 through the flow limiting groove 22 is increased, the flow rate pumped by the flow control pump is increased, meanwhile, the control rod 30 drives the switching rod 18 to continue downwards, so that the fifth sealing ring 15 exceeds the through hole 05, the water passage between the first water outlet 19 and the water outlet cavity 10 is communicated, the water passage between the second water outlet 17 and the water outlet cavity 10 is blocked, a large amount of water enters the inner cavity of the bushing 03 through the water outlet passage 06 and the through hole 05 and then enters the first water outlet 19 through the water outlet 16, the first water outlet 19 supplies water to the normal-temperature water passage of the clean drinking system, at this time, the water volume pumped by the flow control pump is the maximum, the requirement of the water demand of normal-temperature water is met, and the working voltage (power) of the flow control pump continues to increase, the control rod 30 drives the switching rod 18 to move downwards continuously, after the lower end of the switching rod 18 pushes the plug 08 and the compression spring 09 to move downwards, the water path between the water outlet cavity 10 and the water outlet groove 07 is communicated, so that water in the water outlet cavity 10 can enter the second water outlet 17 to supply water to the cooling/heating water path of the water purification system under the condition that the fifth sealing ring 15 seals the water path between the second water outlet 17 and the through hole 05, the two water outlets are adjusted by adjusting the working voltage of the flow control pump to supply water to the water purification system at the same time, the water purification system can simultaneously discharge normal temperature water and water after cooling/heating, and the applicability of the flow control pump is stronger.

The foregoing is only a preferred embodiment of the present invention, and the present invention is not limited thereto in any way, and any simple modification, equivalent replacement and improvement made to the above embodiment within the spirit and principle of the present invention still fall within the protection scope of the present invention.

Claims

1. A multi-path flow control pump comprises a pump body (31), a pressurizing cavity (13), a water outlet cavity (10) and a vacuum cavity (23) are arranged in the pump body (31), a first water outlet (19), a second water outlet (17) and a water inlet (01) are arranged on the pump body (31), the vacuum cavity (23) is communicated with the pressurizing cavity (13) through a water inlet groove (14) and a water inlet one-way structure (32), the pressurizing cavity (13) is communicated with the water outlet cavity (10) through a water outlet one-way structure (33), a water sealing sleeve ring (21) and a flow control assembly for controlling the water sealing sleeve ring (21) to be sealed or communicated are formed on a water path where the water inlet (01) and the vacuum cavity (23) are communicated, a switching rod (18) for controlling the first water outlet (19) and the second water outlet (17) to be communicated or blocked with the water outlet cavity (10) is arranged on the flow control assembly, and a lining (03) is further arranged in the pump body (31), the water pump is characterized in that a water outlet groove (07) which is communicated with a water channel between the second water outlet (17) and the water outlet cavity (10) is formed in the pump head body (31), and a water cut-off assembly which is used for controlling the water channel at the water outlet groove (07) to be sealed or communicated is arranged at the water outlet groove (07).

2. The multi-path flow control pump according to claim 1, wherein the flow cut-off assembly comprises a sealing plug (08) and a compression spring (09), the sealing plug (08) is sleeved on the water outlet groove (07) and can slide up and down in the water outlet groove (07), one end of the compression spring (09) acts on the sealing plug (08), the other end of the compression spring acts on the water outlet one-way structure (33), and the sealing plug (08) controls the sealing or the conduction of a water path at the water outlet groove (07) under the combined action of the thrust of the switching rod (18) and the elastic force of the compression spring (09).

3. The multi-path flow control pump according to claim 1, wherein the flow control assembly comprises a control rod (30), a return spring (29) and a pressure sensing plate (24), the upper end of the control rod (30) is connected with the bottom surface of the pressure sensing plate (24), the lower end of the control rod (30) is connected with a switching rod (18), the periphery of the pressure sensing plate (24) is in sealing contact with the side wall of the vacuum cavity (23), a valve cover (27) is arranged at the upper end of the pump head body (31), an atmospheric cavity (25) is formed between the pressure sensing plate (24) and the valve cover (27), and an atmospheric hole (26) for communicating the atmospheric cavity (25) is arranged on the valve cover (27); the side wall of the control rod (30) is provided with a flow limiting groove (22), the control rod (30) is sequentially provided with a first sealing ring (35), a supporting sleeve ring (20) and a second sealing ring (02) in the circumferential direction, the supporting sleeve ring (20) is provided with a water inlet hole (34) communicated with the water inlet (01), and the first sealing ring (35), the supporting sleeve ring (20) and the second sealing ring (02) are tightly pressed between the water sealing sleeve ring (21) and the bushing (03); one end of a return spring (29) acts on the bottom surface of the pressure sensing plate (24), the other end acts on the water sealing sleeve ring (21), and the control rod (30) forms a flow control assembly for sealing or communicating a water path between the water inlet (01) and the vacuum cavity (23) under the combined action of the air pressure in the atmosphere cavity (25), the pressure in the vacuum cavity (23) and the return spring (29).

4. The multi-path flow control pump according to claim 1, wherein a third sealing ring (04) is sleeved on the periphery of the bushing (03), and the third sealing ring (04) is located between the through hole (05) and the first water outlet (19).

5. A multiplex flow pump according to claim 3 characterised in that the pressure sensing plate (24) is sealed from the vacuum chamber (23) at its periphery by a fourth sealing ring (28).

6. The multi-way flow control pump according to claim 1, wherein the switching rod (18) is sealed between the periphery of the lower end and the side wall of the inner cavity through a fifth sealing ring (15).

7. The multi-path flow control pump according to claim 1, wherein a water outlet flow channel (06) formed by the body of the pump head body (31) is arranged between the through hole (05) and the water outlet cavity (10).

8. The multi-path flow control pump according to claim 1, wherein a water outlet (16) for communicating a water path between the inner cavity and the first water outlet (19) is formed in the side wall of the bushing (03).