CN213145540U

CN213145540U - Flow control valve

Info

Publication number: CN213145540U
Application number: CN202022184721.6U
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: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-05-07
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a flow control valve, including disk seat and the airtight valve body that cup joints on the disk seat, be equipped with water inlet and backward flow mouth on the disk seat, enclose between disk seat and the valve body and have the intake antrum that switches on with the backward flow mouth, the water inlet switches on through one-way rivers control structure and intake antrum, is equipped with the atmosphere chamber in the valve body top, and the atmosphere hole that the atmosphere chamber passes through the valve body side switches on with the atmosphere, and atmosphere chamber top cuts off and is equipped with inclosed pressure water cavity, the valve body top is equipped with the valve gap, is equipped with the delivery port on the valve gap, and pressure water cavity switches on with delivery port, intake antrum, is equipped. The utility model discloses the inside waterway structure of accuse stream valve has been simplified for the trend in adaptation cooperation system water route makes its production and processing technology simplify simultaneously, practices thrift the cost.

Description

Flow control valve

Technical Field

The utility model relates to a technical field is equipped in the fluid transportation, concretely relates to flow control valve.

Background

At present, the accuse flow valve is applied to in all kinds of drinking water systems in a large number, a water route part for simplifying whole drinking water system, the accuse flow valve uses the discharge that can effective control get into heating element among the drinking water system with the pump cooperation, guarantee the water yield of getting into and heating element's heating power matches, guarantee the heating quality of water, unnecessary water can also flow back the filter unit through the backward flow mouth simultaneously and carry out secondary filter, make the system can normal operating, but current accuse flow valve is owing to need multiple runner, the water route structure of event inside is comparatively complicated, make its processing technology degree of difficulty increase.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a accuse flow valve for simplify its inside waterway structure, adapt to the trend in cooperation system water route, simplify its production and processing technology, practice thrift the cost.

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

the utility model provides a flow control valve, includes disk seat and the airtight valve body that cup joints on the disk seat, be equipped with water inlet and backward flow mouth on the disk seat, enclose between disk seat and the valve body and enclose into the intake antrum that switches on with the backward flow mouth, the water inlet switches on with the intake antrum through one-way rivers control structure, is equipped with the atmosphere chamber in the valve body top, and the atmosphere chamber switches on with the atmosphere through the big gas pocket of valve body side, and the atmosphere chamber top cuts off and is equipped with inclosed pressurized water chamber, the valve body top is equipped with the valve gap, is equipped with the delivery port on the valve gap, and pressurized water chamber switches on with delivery port.

Compared with the prior art, this scheme has changed the position of delivery port and inside intercommunication water route on current accuse flow valve basis, set up the delivery port at the valve gap top and with pressurized-water chamber intercommunication, distinguish and flow valve with current accuse and set up the delivery port on the valve body, it is bigger that the delivery port is located its operating space on the valve gap, move towards more the cooperation with system's water route like this, the inside water route structure of valve body has been simplified simultaneously, make its production technology simplify, cost reduces, be equipped with on the water route of pressurized-water chamber and intake antrum switch-on and control the subassembly of flowing, a water flow for controlling to get into the pressurized-water chamber, thereby control delivery port exhaust water flow.

Preferably, the flow control assembly comprises a pressure sensing diaphragm, a return spring and a control rod, the periphery of the pressure sensing diaphragm is tightly pressed and sealed between the valve cover and the valve body, a water pressure cavity is formed between the valve cover and the pressure sensing diaphragm, an atmospheric cavity is formed between the pressure sensing diaphragm and the inner wall of the valve body, a support is arranged in the valve body, one end of the control rod is connected with a pressure plate positioned on the bottom surface of the pressure sensing diaphragm, the other end of the control rod penetrates through the valve body, the support extends downwards to the water inlet cavity, two ends of the reset spring act on the bottom surface of the pressure plate and the inner wall of the large air cavity respectively, the side wall of the control rod and the inner side of the support are provided with a flow limiting groove and a flow limiting convex ring respectively, the support is provided with a side flow passage communicated with the flow limiting groove, the valve body is provided with a water outlet flow passage communicated with the side flow passage and the water pressing cavity respectively, the outlet of the water outlet flow passage is provided with a pressure sensing diaphragm water sealing pressure plate for pressing the pressure sensing diaphragm, and a pressing lantern ring for pressing the water sealing.

Preferably, be equipped with the protruding ring of water sealing that constitutes by the disk seat body on the disk seat, water sealing protruding ring department is equipped with the backward flow hole that switches on intake antrum and backward flow mouth, and the backward flow hole is located under the control lever. The return port is used for allowing redundant water in the water inlet cavity to flow to a designated water path through the return port.

Preferably, the bottom end of the control rod is provided with a sealing plug. When the control rod moves downwards to the water sealing convex ring under the pressure action of the pressurized water cavity, the blocking effect of the blocking plug on the backflow hole is better.

Preferably, the valve seat is provided with a water inlet hole for communicating the water inlet and the water inlet cavity, the water inlet hole is provided with a one-way diaphragm, and the one-way diaphragm is tightly pressed between the bottom end of the support and the valve seat.

Preferably, the control rod is sleeved with a first sealing ring, and the periphery of the first sealing ring is pressed in a groove between the valve body and the top end of the support. The first sealing ring is used for enhancing the sealing effect of the gap between the control rod and the valve body, and water is prevented from entering the atmosphere cavity from the gap in the up-and-down moving process of the control rod, so that the water flows out from the atmosphere hole, and the water leakage of the flow control valve is caused.

Preferably, a second sealing ring positioned between the support and the valve body is embedded in the side surface of the support. The second sealing ring prevents water from flowing out from a gap between the side surface of the bracket and the inner wall of the valve body in the process of flowing to the water outlet, so that water leakage is caused.

Preferably, the valve seat is provided with a fixed sleeve ring for sleeving the valve body, and a third sealing ring positioned between the bottom of the valve body and the fixed sleeve ring is embedded in the fixed sleeve ring. The fixed lantern ring is convenient for cup joint between disk seat and the valve body, and the leakproofness that disk seat and valve body cup jointed the department is strengthened to the third sealing washer, is difficult for taking place the infiltration.

The utility model discloses beneficial effect who has:

1. this scheme sets up the delivery port at the valve gap top and with the pressurized-water chamber intercommunication, distinguishes and sets up the delivery port on the valve body with current accuse stream valve, and its operating space is bigger on the delivery port lies in the valve gap, moves towards more the cooperation with the system water route like this, has simplified the inside water route structure of valve body simultaneously for its production technology is simplified, cost reduction.

Drawings

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

Reference numerals: 01-water inlet, 02-third sealing ring, 03-second sealing ring, 04-valve body, 05-atmospheric hole, 06-first sealing ring, 07-return spring, 08-control rod, 09-pressure plate, 10-pressure sensing diaphragm, 11-valve cover, 12-water outlet, 13-water pressure cavity, 14-pressing lantern ring, 15-water sealing pressure plate, 16-atmospheric cavity, 17-water outlet flow channel, 18-side flow channel, 19-flow limiting groove, 20-flow limiting convex ring, 21-bracket, 22-sealing plug, 23-backflow port, 24-water inlet cavity, 25-water sealing convex ring, 26-valve seat, 27-water inlet, 28-one-way diaphragm and 29-backflow hole.

Detailed Description

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

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 the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and the terms are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that, unless otherwise explicitly specified or limited, the terms "disposed," "opened," "mounted," "connected," and "connected" are to be construed broadly, e.g., as either a fixed connection, a detachable 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 meaning 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 flow control valve comprises a valve seat 26 and a valve body 04 hermetically sleeved on the valve seat 26, wherein a water inlet 01 and a backflow port 23 are arranged on the valve seat 26, a water inlet cavity 24 communicated with the backflow port 23 is enclosed between the valve seat 26 and the valve body 04, the water inlet 01 is communicated with the water inlet cavity 24 through a one-way water flow control structure, an atmosphere cavity 16 is arranged above the valve body 04, the atmosphere cavity 16 is communicated with atmosphere through an atmosphere hole 05 in the side surface of the valve body 04, a sealed pressurized water cavity 13 is arranged above the atmosphere cavity 16 in a separated manner, a valve cover 11 is arranged above the valve body 04, a water outlet 12 is arranged on the valve cover 11, the pressurized water cavity 13 is communicated with the water outlet 12 and the water inlet cavity 24, and a flow control.

Concretely, this scheme has changed the position of delivery port 12 and inside intercommunication water route on current accuse flow valve basis, set up delivery port 12 at valve gap 11 top and with pressurized-water chamber 13 intercommunication, distinguish and set up delivery port 12 on valve body 04 with current accuse flow valve, delivery port 12 is located its operating space on valve gap 11 and is bigger, move towards more cooperation with the system water route like this, the inside water route structure of valve body 04 has been simplified simultaneously, make its production technology simplify, cost reduces, be equipped with on the water route that pressurized-water chamber 13 and intake antrum 24 put through and accuse stream subassembly, a water flow for controlling the entering pressurized-water chamber 13, thereby control delivery port 12 exhaust water flow.

Example 2

As shown in fig. 1, the flow control assembly includes a pressure sensing diaphragm 10, a return spring 07, and a control rod 08, the periphery of the pressure sensing diaphragm 10 is tightly pressed and sealed between a valve cover 11 and a valve body 04, a water pressing cavity 13 is formed between the valve cover 11 and the pressure sensing diaphragm 10, an atmosphere cavity 16 is formed between the pressure sensing diaphragm 10 and the inner wall of the valve body 04, a support 21 is disposed in the valve body 04, one end of the control rod 08 is connected with a pressure plate 09 located at the bottom surface of the pressure sensing diaphragm 10, the other end of the control rod 08 penetrates through the valve body 04 and the support 21 and extends downwards to a water inlet cavity 24, two ends of the return spring 07 respectively act on the bottom surface of the pressure plate 09 and the inner wall of the atmosphere cavity 16, a flow limiting groove 19 and a flow limiting convex ring 20 are respectively disposed on the side wall of the control rod 08 and the inner side of the support 21, a side flow passage 18 communicated with the flow limiting groove 19 is disposed on the valve body 04, a, a pressing collar 14 for pressing a water sealing pressing plate 15 is arranged in the water pressing cavity 13.

The working principle of the embodiment is as follows:

in practical application, when a pump connected with the water outlet 12 of the flow control valve does not work, the water outlet 12 is not communicated, raw water enters the water inlet cavity 24 from the water inlet 01 through the one-way diaphragm 28, water in the water inlet cavity 24 continuously increases, the water enters the water outlet flow channel 17 through the flow limiting groove 19 at the position of the flow limiting convex ring 20 and the side flow channel 18, the water enters the water pressure cavity 13 from the water outlet flow channel 17 through the water sealing pressure plate 15 and the pore channel on the pressing lantern ring 14, at the moment, the pump connected with the water outlet 12 of the flow control valve does not work, a large amount of water is accumulated in the water pressure cavity 13, when the internal water pressure is greater than the pressure in the atmospheric cavity 16, the pressure acts on the pressure sensing diaphragm 10 downwards, the pressure sensing diaphragm 10 acts on the pressure plate 09, the pressure plate 09 downwards compresses the return spring 07, and simultaneously drives the control rod 08 to continuously downwards move until the bottom end of the control rod 08 closes a; when the pump works, water in the water pressing cavity 13 is pumped into the heating unit or other waterway components due to suction of the pump, at the moment, after the water in the water pressing cavity 13 is pumped out, the internal pressure of the water pressing cavity is not enough to overcome the spring counterforce of the return spring 07, the return spring 07 upwards acts on the pressure plate 09, the control rod 08 moves upwards, meanwhile, the closing of the waterway between the water inlet cavity 24 and the return opening 23 is removed, at the moment, redundant water which is not pumped out in the valve body 04 is poured back to the designated waterway through the return opening 23, and the whole system can normally run.

Example 3

As shown in fig. 1, a water sealing convex ring 25 composed of a valve seat 26 body is arranged on the valve seat 26, a return hole 29 for communicating the water inlet cavity 24 and the return port 23 is arranged at the position of the water sealing convex ring 25, the return hole 29 is positioned right below the control rod 08, and the return hole 29 is used for allowing excess water in the water inlet cavity 24 to flow to a designated water path through the return port 23.

Example 4

As shown in fig. 1, the bottom end of the control rod 08 is provided with a plugging plug 22, and the plugging plug 22 is made of rubber, so that when the control rod 08 moves downwards to the water sealing convex ring 25 under the pressure of the water pressing cavity 13, the plugging plug 22 has a better plugging effect on the backflow hole 29.

Example 5

As shown in fig. 1, a water inlet hole 27 for communicating the water inlet 01 with the water inlet cavity 24 is formed in the valve seat 26, a one-way diaphragm 28 is arranged at the water inlet hole 27, the one-way diaphragm 28 is tightly pressed between the bottom end of the support 21 and the valve seat 26, the one-way diaphragm 28 enables water to flow into the water inlet cavity 24 only from the water inlet 01, water is not allowed to flow backwards, and redundant water can flow into the water return port 23 only from the water return hole 29.

Example 6

As shown in fig. 1, a first sealing ring 06 is sleeved on the control rod 08, and the periphery of the first sealing ring 06 is pressed in a groove between the valve body 04 and the top end of the bracket 21. The first sealing ring 06 is used for enhancing the sealing effect of the gap between the control rod 08 and the valve body 04, and preventing water from entering the atmosphere cavity 13 from the gap during the up-and-down movement of the control rod 08, so that water flows out from the atmosphere hole 05 to cause water leakage of the flow control valve.

Specifically, the second sealing ring 03 positioned between the support 21 and the valve body 04 is embedded into the side surface of the support 21, and two ends of the support 21 are attached to the inner wall of the valve body 04, so that the lateral displacement of the support 21 is reduced. The second sealing ring 03 prevents water from leaking out of a gap between the side surface of the bracket 21 and the inner wall of the valve body 04 in the process of flowing to the water outlet 12.

Specifically, a fixed sleeve ring for sleeving the valve body 04 is arranged on the valve seat 26, and a third sealing ring 02 located between the bottom of the valve body 04 and the fixed sleeve ring is embedded in the fixed sleeve ring. The fixed lantern ring is convenient for cup joint between disk seat 26 and the valve body 04, plays the supporting role to support 21 simultaneously, and the leakproofness that disk seat 26 and valve body 04 cup jointed is strengthened to third sealing washer 02 for the difficult emergence infiltration of junction.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and the technical essence of the present invention is that within the spirit and principle of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments are all within the protection scope of the technical solution of the present invention.

Claims

1. A flow control valve comprises a valve seat (26) and a valve body (04) hermetically sleeved on the valve seat (26), the water inlet (01) and the backflow port (23) are arranged on the valve seat (26), a water inlet cavity (24) communicated with the backflow port (23) is formed between the valve seat (26) and the valve body (04) in a surrounding mode, the water inlet (01) is communicated with the water inlet cavity (24) through a one-way water flow control structure, an atmosphere cavity (16) is arranged above the valve body (04), the atmosphere cavity (16) is communicated with the atmosphere through an atmosphere hole (05) in the side face of the valve body (04), a sealed water pressing cavity (13) is arranged above the atmosphere cavity (16) in a separated mode, the water pump is characterized in that a valve cover (11) is arranged above the valve body (04), a water outlet (12) is formed in the valve cover (11), a water pressing cavity (13) is communicated with the water outlet (12) and a water inlet cavity (24), and a flow control assembly is arranged on a water path through which the water outlet (12) is communicated with the water inlet cavity (24).

2. The flow control valve according to claim 1, wherein the flow control assembly comprises a pressure sensing diaphragm (10), a return spring (07) and a control rod (08), the periphery of the pressure sensing diaphragm (10) is tightly pressed and sealed between a valve cover (11) and a valve body (04), a water pressing cavity (13) is formed between the valve cover (11) and the pressure sensing diaphragm (10), an atmosphere cavity (16) is formed between the pressure sensing diaphragm (10) and the inner wall of the valve body (04), a support (21) is arranged in the valve body (04), one end of the control rod (08) is connected with a pressure plate (09) positioned at the bottom surface of the pressure sensing diaphragm (10), the other end of the control rod penetrates through the valve body (04) and the support (21) and extends downwards to the water inlet cavity (24), two ends of the return spring (07) respectively act on the bottom surface of the pressure plate (09) and the inner wall of the atmosphere cavity (16), and a flow limiting groove (19) is respectively arranged on the side wall of the, The flow-limiting convex ring (20) is arranged on the support (21), a side flow channel (18) communicated with the flow-limiting groove (19) is arranged on the support (21), a water outlet flow channel (17) communicated with the side flow channel (18) and the water pressing cavity (13) respectively is arranged on the valve body (04), a water sealing pressure plate (15) used for pressing the pressure sensing diaphragm (10) is arranged at the outlet of the water outlet flow channel (17), and a pressing sleeve ring (14) used for pressing the water sealing pressure plate (15) is arranged in the water pressing cavity (13).

3. The flow control valve according to claim 2, wherein the valve seat (26) is provided with a water sealing convex ring (25) formed by a body of the valve seat (26), the water sealing convex ring (25) is provided with a backflow hole (29) for communicating the water inlet cavity (24) with the backflow port (23), and the backflow hole (29) is positioned right below the control rod (08).

4. A valve as claimed in claim 3, characterised in that the control rod (08) is provided with a plug (22) at its lower end.

5. The flow control valve according to claim 2, wherein the valve seat (26) is provided with a water inlet hole (27) for communicating the water inlet (01) with the water inlet cavity (24), the water inlet hole (27) is provided with a one-way diaphragm (28), and the one-way diaphragm (28) is compressed between the bottom end of the support (21) and the valve seat (26).

6. A valve as claimed in claim 2, characterised in that the control rod (08) is fitted with a first sealing ring (06), the first sealing ring (06) being peripherally compressed in a recess between the valve body (04) and the top of the support (21).

7. Valve for controlling flow according to claim 2, characterized in that the side of the support (21) is embedded with a second sealing ring (03) between the support (21) and the valve body (04).

8. The flow control valve according to claim 2, characterized in that a fixed collar for sleeving the valve body (04) is arranged on the valve seat (26), and a third sealing ring (02) positioned between the bottom of the valve body (04) and the fixed collar is embedded in the fixed collar.