CN218440781U

CN218440781U - Low-cost series flow prevention water mixing valve

Info

Publication number: CN218440781U
Application number: CN202222407805.0U
Authority: CN
Inventors: 孙剑军
Original assignee: Yuhuan Sun Hvac Equipment Co ltd
Current assignee: Yuhuan Sun Hvac Equipment Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-02-03
Anticipated expiration: 2032-09-09

Abstract

A low-cost series-flow-preventing water mixing valve comprises a valve body, a hot water joint arranged on the left side of the valve body and a cold water joint arranged on the right side of the valve body, wherein a water outlet joint is arranged at the lower end of the valve body; a partition board is arranged in the lower end of the water outlet joint. The utility model discloses a low-cost is prevented series flow and is mixed water valve not only can effectively avoid the not enough circumstances of refluence to the hot water joint in of cold water pressure, and can effectively guarantee the hot water joint and the seal state when opening and close, effectively stops the hot and cold water series flow to effectively stop the potential safety hazard.

Description

Low-cost series flow prevention water mixing valve

Technical Field

The utility model relates to a mix the water valve, especially a low-cost is prevented streaming and is mixed water valve.

Background

The water mixing valve is a valve capable of mixing cold water and hot water into warm water with actually required temperature, when the water mixing valve is used, the cold water joint and the hot water joint are both in an open state, cold water enters the water mixing cavity inside the water mixing valve from the cold water joint, hot water enters the water mixing cavity inside the water mixing valve from the hot water joint, and after the cold water and the hot water are mixed in the water mixing cavity, the cold water and the hot water flow out from the water outlet joint of the water mixing valve for use.

In the actual use process of the water mixing valve, the situation that the water pressure of cold water is insufficient can occur, at the moment, the situation that cold water mixed with hot water flows backwards can occur, the cold water flows backwards into the hot water joint finally, the situation that the cold water flows in series with the hot water occurs, once the cold water flows in series, the actual temperature of the mixed cold water and the hot water can be influenced, the cold water enters a hot water pipeline which only originally flows, the hot water pipeline connected with the hot water joint can be broken under the principle of expansion with heat and contraction with cold, the hot water can be sprayed out of the hot water pipeline to the outside through the broken position, if people exist at the periphery, the hot water which is sprayed out easily scalds, serious potential safety hazards exist, the cold water joint and the water mixing cavity of the traditional water mixing valve are always in a communicated state, and if the opening and closing piece of the water mixing valve does not seal the hot water joint well, the cold water can enter the cold water joint.

Disclosure of Invention

The utility model aims to solve the current technical problem and provide a low-cost is prevented streaming and is mixed water valve, it not only can effectively avoid the not enough circumstances of refluence to the hot water joint in of cold water pressure, and can effectively guarantee the hot water joint and the seal state when opening and close, effectively stop the hot and cold water streaming to effectively stop the potential safety hazard.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the utility model discloses a low-cost is prevented streaming and is mixed water valve, which comprises a valve body, locate the left hot water joint of valve body and locate the cold water joint on valve body right side, the valve body lower extreme is equipped with water connectors, the inside muddy water chamber that is equipped with of valve body, cold water joint has a perfect understanding mutually with muddy water chamber through the cold water hole, hot water joint has a perfect understanding mutually with muddy water chamber through the hot water hole, mix the water intracavity be equipped with rather than assorted opening and closing piece, opening and closing piece shields the hot water hole right-hand member drill way sealed, valve body up end center is equipped with the case hole, the spiro union has the case in the case hole, the case upper end upwards wears out outside the case hole and is equipped with the hand wheel, its characterized in that: the lower end of the valve core is provided with a start-stop rod coaxial with the valve core; a partition plate is arranged in the lower end of the water outlet joint; an opening and closing hole is formed in the center of the partition plate; the lower end of the opening and closing rod penetrates into the opening and closing hole downwards and is provided with a plug matched with the opening and closing hole; the opening and closing piece is annular, and the outer peripheral surface of the opening and closing piece is attached to the inner wall of the water mixing cavity; the lower end surface of the opening and closing piece is lower than the inner wall of the lower side of the hot water hole, and the lower end of the opening and closing piece is provided with a sealing structure; the inner walls of the opening and closing pieces are connected through a plurality of supporting wings which are uniformly distributed on the circumference; the upper end surface of the opening and closing piece is lower than the inner wall of the upper side of the cold water joint; a fixed seat is screwed in the hot water joint; a water inlet hole is formed in the center of the side wall of the left side of the fixed seat; the side wall of the right side of the fixed seat is provided with a plurality of water outlet holes which are uniformly distributed in the circumferential direction, and the water inlet holes are communicated with the hot water holes through the water outlet holes; and a series flow prevention structure matched with the water inlet hole is arranged in the water inlet hole.

The anti-streaming structure comprises a drainage seat screwed in a hole at the left end of the water inlet hole; a drainage hole is formed in the center of the drainage seat; the orifice at the right end of the drainage hole is blocked and sealed by a sealing head; a guide hole is formed in the center of the sealing head; a screw hole is formed in the center of the bottom of the water inlet hole; a guide rod is screwed in the screw hole, and the left end of the guide rod penetrates through the guide hole leftwards and penetrates into the drainage hole; the inner wall of the guide hole and the outer wall of the plug are provided with a plurality of annular grooves; an O-shaped ring matched with the annular groove is arranged in the annular groove; and a spring sleeved outside the guide rod is arranged between the sealing head and the bottom of the water inlet hole.

The aperture of the drainage hole is gradually decreased from left to right; the sealing head is hemispherical, and the spherical surface of the sealing head blocks and seals the orifice at the right end of the drainage hole.

The left end orifice of the drainage hole is in a regular hexagon shape.

The outer wall of the left end of the guide rod is provided with a drag reduction conical surface which is narrow at the left and wide at the right.

The sealing structure comprises an embedded groove arranged on the outer peripheral surface of the opening and closing piece, the embedded groove is annular, and the embedded groove is opposite to the hot water hole; a sealing sleeve matched with the opening and closing piece is sleeved outside the lower end of the opening and closing piece; the inner edge of the port at the upper end of the sealing sleeve extends inwards to form an upper limit part matched with the caulking groove; the inner edge of the lower end port of the sealing sleeve extends inwards to form a lower limit part which is attached to the lower end face of the opening and closing part, the lower limit part is annular, and an inner hole of the lower limit part is communicated with an inner hole of the opening and closing part; the seal cover, the upper limit part and the lower limit part are integrally formed and all made of rubber materials.

The lower end face of the sealing sleeve is provided with an annular water filling groove; an annular outer supporting groove is formed in the outer side groove wall of the notch at the lower end of the irrigation groove; an outer supporting ring matched with the outer supporting groove is arranged in the outer supporting groove; the lower end surface of the lower limiting part is provided with an annular mounting groove, and the mounting groove is enclosed by the outer supporting groove; the outer side groove wall of the notch at the lower end of the mounting groove is provided with an annular inner supporting groove, and the inner supporting groove corresponds to the outer supporting groove in position; an inner supporting ring matched with the inner supporting groove is arranged in the inner supporting groove.

The utility model has the advantages that:

compared with the prior art, adopt the utility model discloses the low-cost series flow of preventing of structure mixes water valve can effectively hold back the cold water of refluence through preventing the series flow structure when cold water pressure is not enough, make cold water can't flow out outside the hot water joint, thereby effectively avoid cold water refluence to lead to the hot water pipeline to receive the cold cracked condition of appearance suddenly in the hot water pipeline that is connected with the hot water joint, thereby effectively avoid hot water from the cracked condition that the position blowout of hot water pipeline leads to peripheral personnel to be scalded, effectively stop the potential safety hazard, and when the opening and closing piece closes the hot water hole, seal structure can guarantee the sealed effect of opening and closing piece all the time, thereby avoid the sealed not good cold water seepage that leads to of opening and closing piece to lead to the cracking of the hot water pipeline that leads to be connected with the hot water joint, guarantee to mix water valve's anti-series flow effect in the at utmost.

Drawings

Fig. 1 is a schematic structural view of the low-cost series flow prevention water mixing valve of the present invention;

FIG. 2 is an enlarged view of section A of FIG. 1;

fig. 3 is an enlarged view of a portion B of fig. 2.

Detailed Description

The invention is described in further detail below with reference to the following figures and detailed description:

referring to fig. 1 to 3, the present invention provides a low-cost series flow prevention water mixing valve, including a valve body 1, a hot water connector 2 disposed on the left side of the valve body 1, and a cold water connector 3 disposed on the right side of the valve body 1, wherein a water outlet connector 4 is disposed at the lower end of the valve body 1, a water mixing cavity 5 is disposed inside the valve body 1, the cold water connector 3 is communicated with the water mixing cavity 5 through a cold water hole 6, the hot water connector 2 is communicated with the water mixing cavity 5 through a hot water hole 7, a matched opening and closing member 8 is disposed in the water mixing cavity 5, the opening and closing member 8 shields and seals the right end of the hot water hole 7, a valve core hole 9 is disposed at the center of the upper end surface of the valve body 1, a valve core 10 is screwed in the valve core hole 9, the upper end of the valve core 10 upwardly penetrates out of the valve core hole 9 and is disposed with a hand wheel 11, and an opening and closing rod 12 coaxial with the lower end of the valve core 10 is disposed; a partition plate 13 is arranged in the lower end of the water outlet joint 4; an opening and closing hole 14 is formed in the center of the partition plate 13; the lower end of the opening and closing rod 12 penetrates into the opening and closing hole 14 downwards and is provided with a plug 15 matched with the opening and closing hole 14; the opening and closing piece 8 is annular, and the outer peripheral surface of the opening and closing piece 8 is attached to the inner wall of the water mixing cavity 5; the lower end surface of the opening and closing piece 8 is lower than the inner wall of the lower side of the hot water hole 7, and the lower end of the opening and closing piece 8 is provided with a sealing structure; the inner walls of the opening and closing pieces 8 are connected through a plurality of supporting wings 16 which are uniformly distributed on the circumference; the upper end surface of the opening and closing piece 8 is lower than the inner wall of the upper side of the cold water joint 3; a fixed seat 17 is screwed in the hot water joint 2; a water inlet hole 18 is formed in the center of the side wall of the left side of the fixed seat 17; a plurality of water outlet holes 19 which are uniformly distributed in the circumferential direction are formed in the side wall of the right side of the fixed seat 17, and the water inlet hole 18 is communicated with the hot water hole 7 through the water outlet holes 19; the water inlet hole 18 is provided with a series flow prevention structure matched with the water inlet hole.

The anti-streaming structure comprises a drainage seat 20 screwed in a hole at the left end of the water inlet hole 18; a drainage hole 21 is formed in the center of the drainage seat 20; the orifice at the right end of the drainage hole 21 is blocked and sealed by a sealing head 22; a guide hole 23 is formed in the center of the sealing head 22; a screw hole 24 is formed in the center of the bottom of the water inlet 18; a guide rod 25 is screwed in the screw hole 24, and the left end of the guide rod 25 penetrates through the guide hole 23 leftwards and penetrates into the drainage hole 21; a plurality of annular grooves 26 are formed in the inner wall of the guide hole 23 and the outer wall of the plug 15; an O-shaped ring 27 matched with the annular groove 26 is arranged in the annular groove; a spring 28 sleeved outside the guide rod 25 is arranged between the sealing head 22 and the bottom of the hole of the water inlet hole 18.

The aperture of the drainage hole 21 is gradually decreased from left to right; the sealing head 22 is hemispherical, and the spherical surface of the sealing head 22 blocks and seals the orifice at the right end of the drainage hole 21.

The left end hole of the drainage hole 21 is in a regular hexagon shape.

The outer wall of the left end of the guide rod 25 is provided with a drag reduction conical surface 29 which is narrow at the left and wide at the right.

The sealing structure comprises an embedded groove 30 arranged on the peripheral surface of the opening and closing piece 8, the embedded groove 30 is annular, and the embedded groove 30 is opposite to the hot water hole 7; the lower end of the opening and closing part 8 is externally sleeved with a sealing sleeve 31 matched with the opening and closing part; the inner edge of the upper end port of the sealing sleeve 31 extends inwards to form an upper limit part 32 matched with the caulking groove 30; the inner edge of the lower end port of the seal sleeve 31 extends inwards to form a lower limit part 33 which is attached to the lower end face of the opening and closing part 8, the lower limit part 33 is annular, and the inner hole of the lower limit part 33 is communicated with the inner hole of the opening and closing part 8; the sealing sleeve 31, the upper limit portion 32 and the lower limit portion 33 are integrally formed and made of rubber.

An annular irrigation groove 34 is formed in the lower end face of the sealing sleeve 31; an annular outer supporting groove 35 is formed in the outer side groove wall of the notch at the lower end of the water filling groove 34; an outer supporting ring 36 matched with the outer supporting groove 35 is arranged in the outer supporting groove; the lower end surface of the lower limit part 33 is provided with an annular mounting groove 37, and the mounting groove 37 is enclosed by the outer support groove 35; an annular inner supporting groove 38 is arranged on the outer side groove wall of the notch at the lower end of the mounting groove 37, and the inner supporting groove 38 corresponds to the outer supporting groove 35 in position; an inner supporting ring 39 matched with the inner supporting groove 38 is arranged in the inner supporting groove.

The utility model discloses a use method as follows:

when the opening and closing member 8 shields and seals the orifice at the right end of the hot water hole 7 through the peripheral surface of the opening and closing member, the water mixing cavity 5 is communicated with the cold water hole 6 through the gap between the adjacent support wings 16, at the moment, cold water in a cold water pipeline connected with the cold water joint 3 can sequentially flow into the water mixing cavity 5 through the gap between the cold water joint 3, the cold water hole 6 and the adjacent support wings 16, at the moment, the plug 15 blocks and seals the opening and closing hole 14, the outer wall of the sealing sleeve 31 outside the lower end of the opening and closing member 8 is attached to the inner wall of the water mixing cavity 5, and therefore the water mixing cavity 5 can be intercepted in the water mixing cavity 5, cannot be discharged from the water outlet joint 4 through the opening and closing hole 14, and cannot enter the hot water joint 2 through the hot water hole 7.

When cold and hot water mixing is needed, the hand wheel 11 can be rotated, so that the valve core 10 moves up stably along the thread track of the inner wall of the valve core hole 9, when the valve core 10 moves up, the valve core 10 can drive the opening and closing rod 12 to move up, the opening and closing rod 12 is connected with the opening and closing member 8 through a plurality of supporting wings 16 which are uniformly distributed on the circumference, when the opening and closing rod 12 moves up, the opening and closing member 8 moves up along with the valve core, when the opening and closing member 8 moves up to a certain degree, the opening at the right end of the hot water hole 7 is not shielded and sealed, when the hot water joint 2 is connected with the hot water pipeline, hot water in the hot water pipeline enters the drainage hole 21 under the action of the self water pressure, then the sealing head 22 is pushed to the right side through the elasticity of the spring 28 by the self water pressure, when the sealing head 22 moves to the right along the guide hole 23, the sealing head 22 does not block and seal the opening at the right end of the drainage hole 21, at the moment, hot water enters the right side space of the drainage seat 20 through the drainage hole 19, flows into the hot water hole 7 and flows into the opening and flows out of the hot water mixing hole 7, at the opening and flows into the hot water mixing hole 14, at the hot water cavity, at the right side, the hot water mixing end, at the opening and flows out through the hot water mixing plug 14, and flows into the opening and flows out of the hot water mixing plug 14, and flows into the opening and flows into the hot water mixing hole 5, and flows out of the opening and flows out of the hot water mixing hole 5, and flows into the mixing plug 14, and flows into the mixing hole 5, and flows into the mixing plug 14.

If cold water pressure is not enough at this moment, the condition that cold water flows back to hot water hole 7 direction takes place, cold water can directly loop through hot water hole 7, apopore 19 gets into in the inlet opening 18, and cold water that gets into in the inlet opening 18 at this moment can then be confronted with hot water, lead to hot water pressure to descend, spring 28's elasticity is greater than hot water pressure this moment, spring 28 that originally compressed by hot water pressure then can help sealed head 22 automatic re-setting through self elasticity, along with sealed head 22 resets, sealed head 22 blocks up the sealed with drainage hole right-hand member drill way through self sphere once more, make cold water can't continue to flow left, thereby hold back cold water in inlet opening 18 of fixing base 17, make it can't flow into in the hot water pipeline that is connected with hot water joint 2, thereby avoid cold contraction hot water pipeline expend with heat and lead to the cracked condition of hot water pipeline.

When the opening and closing element 8 shields and seals the orifice at the right end of the hot water hole 7, as cold water continuously enters the water mixing cavity 5, the cold water finally fills the whole water mixing cavity 5, at the moment, the cold water can enter the water filling groove 34 through the notch at the lower end of the water filling groove 34, under the push of subsequent water flow, the cold water continuously enters the water filling groove 34, the water pressure in the water filling groove 34 can be continuously increased, the cold water in the water filling groove 34 can press the wall of the water filling groove 34 outwards through the self water pressure, so that the outer wall of the sealing sleeve 31 is further attached to the inner wall of the water mixing cavity 5, the sealing effect of the sealing sleeve 31 is effectively improved, even if the sealing sleeve 31 is weakened due to the aging of the self material or other reasons, the outer wall of the sealing sleeve 31 can be attached to the inner wall of the water mixing cavity 5 all the time under the action of the water pressure in the water filling groove 34, the sealing effect of the sealing sleeve 31 is always ensured, and the notch strength of the outer support ring 36 and the inner support ring 39 can effectively ensure that the groove 34 can accurately enter the water filling groove 34 due to the deformation of the cold water filling sleeve 31 under the impact.

To sum up, can know, the utility model discloses can effectively hold back through the cold water of preventing series flow structure to the refluence when cold water pressure is not enough, make cold water can't flow out to hot water joint 2 outside, thereby effectively avoid cold water refluence to lead to the hot water pipeline to receive the cracked condition of appearance suddenly by the cold in the hot water pipeline that is connected with hot water joint 2, thereby effectively avoid hot water to lead to the condition that peripheral personnel are scalded from the cracked position blowout of hot water pipeline, effectively stop the potential safety hazard, and when opening and closing 8 and close the hot water hole, sealing structure can guarantee the sealed effect of opening and closing all the time, thereby avoid 8 sealed not good cold water seepage that leads to cold water seepage to the hot water joint to cause the cracked of the hot water pipeline that is connected with hot water joint 2, guarantee the series flow effect of preventing of muddy water valve in the at utmost.

Drainage hole 21's aperture steadilys decrease gradually from a left side to the right side, when hot water in the hot water pipeline flows into muddy water chamber 5 from a left side right side, drainage hole 21 can self constantly receive the aperture of narrowing and carry out the pressure boost to hot water, guarantee that hot water pressure can easily confront the elasticity of spring 28, will seal head 22 and open by a roof, thereby open drainage hole 21 right-hand member drill way, and sealed head 22 is hemispherical, sealed head 22's sphere is sealed with drainage hole 21 right-hand member drill way jam, consequently be sealed between sealed head 22 and the drainage hole 21 between face and the line, in case sealed head 22 takes place to remove, drainage hole 21 right-hand member drill way just can be opened, effectively guarantee drainage hole 21's the efficiency of opening.

The left end drill way of drainage hole 21 is regular hexagon, adopts the interior hexagonal spanner rather than matching, just can easily rotate drainage seat 20, the dismouting of the drainage seat 20 of being convenient for.

The outer wall of the left end of the guide rod 25 is provided with a drag reduction conical surface 29 which is narrow at the left and wide at the right, and the drag reduction conical surface 29 can play a role in guiding, so that the guide rod 25 can penetrate into the guide hole 23 smoothly.

Claims

1. The utility model provides a low-cost prevents series flow and mixes water valve, which comprises a valve body, locate the left hot water joint of valve body and locate the cold water joint on valve body right side, the valve body lower extreme is equipped with water connectors, the inside muddy water chamber that is equipped with of valve body, cold water joint link up with muddy water chamber mutually through the cold water hole, hot water joint link up with muddy water chamber mutually through the hot water hole, mix the water intracavity be equipped with rather than assorted opening and closing piece, opening and closing piece shields hot water hole right-hand member drill way sealed, valve body up end center is equipped with the case hole, the spiro union has the case in the case hole, the case upper end upwards wears out outside the case hole and is equipped with the hand wheel, its characterized in that: the lower end of the valve core is provided with a start-stop rod coaxial with the valve core; a partition plate is arranged in the lower end of the water outlet joint; an opening and closing hole is formed in the center of the partition plate; the lower end of the opening and closing rod penetrates into the opening and closing hole downwards and is provided with a plug matched with the opening and closing hole; the opening and closing piece is annular, and the outer peripheral surface of the opening and closing piece is attached to the inner wall of the water mixing cavity; the lower end surface of the opening and closing piece is lower than the inner wall of the lower side of the hot water hole, and the lower end of the opening and closing piece is provided with a sealing structure; the inner walls of the opening and closing pieces are connected through a plurality of supporting wings which are uniformly distributed on the circumference; the upper end surface of the opening and closing piece is lower than the inner wall of the upper side of the cold water joint; a fixed seat is screwed in the hot water joint; a water inlet hole is formed in the center of the side wall of the left side of the fixed seat; the side wall of the right side of the fixed seat is provided with a plurality of water outlet holes which are uniformly distributed in the circumferential direction, and the water inlet holes are communicated with the hot water holes through the water outlet holes; and a series flow prevention structure matched with the water inlet hole is arranged in the water inlet hole.

2. The low-cost series flow prevention mixing valve as claimed in claim 1, wherein: the anti-streaming structure comprises a drainage seat screwed in a hole at the left end of the water inlet hole; a drainage hole is formed in the center of the drainage seat; the orifice at the right end of the drainage hole is blocked and sealed by a sealing head;

a guide hole is formed in the center of the sealing head; the center of the bottom of the water inlet hole is provided with a screw hole; a guide rod is screwed in the screw hole, and the left end of the guide rod penetrates through the guide hole leftwards and penetrates into the drainage hole; a plurality of annular grooves are formed in the inner wall of the guide hole and the outer wall of the plug; an O-shaped ring matched with the annular groove is arranged in the annular groove; and a spring sleeved outside the guide rod is arranged between the sealing head and the bottom of the water inlet hole.

3. The low-cost series flow prevention mixing valve as claimed in claim 2, wherein: the aperture of the drainage hole is gradually decreased from left to right; the sealing head is hemispherical, and the spherical surface of the sealing head blocks and seals the orifice at the right end of the drainage hole.

4. The low-cost series flow prevention mixing valve as claimed in claim 3, wherein: the left end orifice of the drainage hole is in a regular hexagon shape.

5. The low-cost series flow prevention mixing valve as claimed in claim 2, wherein: the outer wall of the left end of the guide rod is provided with a drag reduction conical surface which is narrow at the left and wide at the right.

6. The low-cost series flow prevention mixing valve as claimed in claim 1, wherein: the sealing structure comprises an embedding groove arranged on the peripheral surface of the opening and closing piece, the embedding groove is annular, and the embedding groove is opposite to the hot water hole; a sealing sleeve matched with the opening and closing piece is sleeved outside the lower end of the opening and closing piece; the inner edge of the port at the upper end of the sealing sleeve extends inwards to form an upper limit part matched with the caulking groove; the inner edge of the lower end port of the sealing sleeve extends inwards to form a lower limit part which is attached to the lower end face of the opening and closing part, the lower limit part is annular, and an inner hole of the lower limit part is communicated with an inner hole of the opening and closing part; the seal cover, the upper limit part and the lower limit part are integrally formed and all made of rubber materials.

7. The low-cost anti-streaming mixing valve of claim 6, wherein: the lower end face of the sealing sleeve is provided with an annular water filling groove; an annular outer supporting groove is formed in the outer side groove wall of the notch at the lower end of the irrigation groove; an outer supporting ring matched with the outer supporting groove is arranged in the outer supporting groove; the lower end surface of the lower limiting part is provided with an annular mounting groove, and the mounting groove is enclosed by the outer supporting groove; the outer side groove wall of the notch at the lower end of the mounting groove is provided with an annular inner supporting groove, and the inner supporting groove corresponds to the outer supporting groove in position; an inner supporting ring matched with the inner supporting groove is arranged in the inner supporting groove.