CN210950041U

CN210950041U - Double one-way water filling valve

Info

Publication number: CN210950041U
Application number: CN201921514512.4U
Authority: CN
Inventors: 索维成; 刘玉峰; 孙鸣
Original assignee: BEIJING STAR LIGHT VITER TRANSMISSION INSTITUTE
Current assignee: BEIJING STAR LIGHT VITER TRANSMISSION INSTITUTE
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-07-07
Anticipated expiration: 2029-09-12

Abstract

The utility model relates to a double one-way water filling valve, which comprises a valve body with an interlayer arranged in the middle part, a first end cover, a second end cover, a first one-way unit component and a second one-way unit component which are communicated with the left side and the right side of the interlayer, wherein the first one-way unit component comprises a first valve seat, the valve comprises a first valve sleeve, a first valve core and a first spring, wherein a first gap cavity is arranged between the first valve sleeve and a valve body, the left outer side wall of the first valve core and the left inner side wall of the first valve sleeve can be connected in a left-right attaching sliding mode, a first valve is arranged between the bottom of the first valve core and the top of a first valve seat, the first gap cavity is communicated with the inside of the left side of the first valve sleeve and the inside of the right side of the first valve sleeve respectively, a second gap cavity is arranged between a second one-way unit component and the valve seat, the second gap cavity is communicated with the first gap cavity in a releasable mode through the second one-way unit component, and the second one-way unit component is communicated with. The utility model discloses a valve uses and provides the dual guarantee, reduces valve probability of failure, promotes valve operating stability.

Description

Double one-way water filling valve

Technical Field

The utility model relates to a fill water valve, especially relate to a can provide two one-way water filling valves of guarantee of dual high-low pressure isolation.

Background

The one-way valve is used as an important component in a pre-filling link in the descaling water-filling valve group, which not only ensures that low-pressure media in a pre-filling pipeline can smoothly fill water into a high-pressure dephosphorization pipeline through the one-way water-filling valve before high-pressure water is injected in dephosphorization operation, prevents the problem of local empty pipe in the dephosphorization pipeline and achieves the purpose of pre-filling water, but also prevents high-pressure water from flowing into the low-pressure water-filling pipeline to cause pipe explosion hazard when the high-pressure water is injected in the dephosphorization operation, so that the using effect of the one-way water-filling valve directly influences the working efficiency of the descaling water-filling valve group, as shown in figure 1, the traditional one-way water-filling valve comprises a valve body 01, a valve seat 02, a valve core 03, a spring 04 and a gland 05, the valve seat 02 is fixed inside the left end of the valve body 01, the gland 05 is fixed on the right end of the valve body 01, the spring 04 is sleeved on the outer side of the right middle part of the valve core 03, and the spring 04 is elastically abutted against the right side wall of the left end of the valve core 03 and the right side wall of the gland 05 respectively, so that when the medium pressure of the water inlet 07 exceeds a certain value, the pressure pushes the valve core 03 of the one-way valve water filling valve to overcome the acting force of the spring 04 and open the valve 06, the medium can flow from the water inlet 07 to the water outlet 08, and when the pressure of the water outlet 08 is more than or equal to the water inlet 07, the one-way water filling valve core automatically closes under the combined action of the medium pressure and the spring force, and the medium cannot flow from the water outlet 08 to the water inlet 07.

The existing one-way water filling valve has the following defects:

1. the valve core 03 of the one-way water filling valve is internally provided with a hollow structure 09, the valve core 03 is communicated with the water outlet 08 through the hollow structure 09, and when the one-way water filling valve works, after a medium passes through the valve core sealing surface 010, the medium can flow from the hollow structure 09 in the valve core 03 and then reaches the water outlet 08. Because the spring 04 is sleeved outside the valve core 03 and is positioned in the core cavity, the core cavity is communicated with the hollow structure 09, the medium can also wash the spring 04, and the medium contains a large amount of impurities, so that the valve core 03 and the spring 04 can be damaged to a certain extent in the working process, and the working efficiency and the service life of the one-way water filling valve are greatly influenced;

2. the unidirectional water filling valve is only provided with one unidirectional unit component, and whether the damage of medium scouring to the valve core 03 and the spring 04 or the impurity particles exist on the valve core sealing surface 010 when the unidirectional valve core 03 is closed, the valve core is not closed tightly, so that the medium flows back when the pre-water filling link is finished.

Disclosure of Invention

The utility model relates to a solve not enough among the prior art and accomplish, the utility model aims at providing a two one-way unit structure provides dual guarantee for the normal use of valve, has greatly reduced the valve probability of failure, has promoted the two one-way water filling valve of the operating stability of valve.

The utility model discloses a double unidirectional water filling valve, which comprises a valve body, a first end cover, a second end cover, a first unidirectional unit component and a second unidirectional unit component, wherein the middle part of the valve body is provided with an interlayer, the first end cover is detachably fixed inside the left end of the valve body in a sealing way, the second end cover is detachably fixed inside the right end of the valve body in a sealing way, the first unidirectional unit component comprises a first valve seat, a first valve sleeve, a first valve core and a first spring, the first valve seat is fixed inside the right side of the first end cover in a sealing way, the bottom of the first valve seat is abutted against the inner wall of the right side of the first end cover, the first valve sleeve is fixed inside the left side of the valve body, a first clearance cavity is arranged between the outer wall of the first valve sleeve and the inner wall of the left part of the valve body, the inner wall of the left end part of the first valve sleeve is sleeved, first valve barrel top with interlayer bottom fixed connection, first case left part lateral wall with laminating formula is slided and is connected about can between the first valve barrel left part inside wall and is connected, first case left part longitudinal section area is greater than the inside longitudinal section area in first valve barrel right side, first case left end portion right side wall with first valve barrel middle part inside wall can be relieved the formula and offset, first spring housing is established right part outer wall in the first case, first spring top with first valve barrel right-hand member left side wall elasticity offsets, first spring bottom with left part right side wall elasticity offsets in the first case, first case bottom with be equipped with first valve between the first disk seat top, first disk seat inside with pass through between the first valve barrel left side inside first valve can be relieved formula intercommunication and set up, first clearance cavity respectively with first valve barrel left side inside with in the first valve barrel right side inside with the first valve barrel The valve body is characterized in that the valve body is communicated with a water inlet, a first end cover is arranged inside the valve body and communicated with the inside of a first valve seat, a second one-way unit assembly is fixed inside the middle right side of the valve body and communicated with a first gap cavity, a second gap cavity is arranged between the outer wall of the second one-way unit assembly and the inner wall of the right part of the valve body, the second gap cavity is communicated with the first gap cavity in a releasable manner, and the second one-way unit assembly is communicated with the water outlet.

The utility model discloses a two one-way water filling valves can also be:

the second one-way unit component comprises a second valve seat, a second valve sleeve, a second valve core and a second spring, the second valve seat is fixed inside the middle right end of the valve body in a sealing mode, the bottom of the second valve seat is fixedly connected with the top of the partition plate, the second valve sleeve is fixed inside the middle right side of the valve body, the second gap cavity is arranged between the outer wall of the second valve sleeve and the inner wall of the middle right part of the valve body, the inner wall of the left end part of the second valve sleeve is sleeved on the outer wall of the right end part of the second valve seat, the top of the second valve sleeve is abutted against the bottom of the second end cover, the left outer side wall of the second valve core and the left inner side arm of the second valve sleeve can be in left-right fit type sliding connection, the left longitudinal section area of the second valve core is larger than the right longitudinal section area of the second valve sleeve, and the right side wall of the left end part of the second, the second valve seat is communicated with the inside of the second valve sleeve in a releasable manner through the second valve, the second gap cavity is communicated with the inside of the second valve seat respectively with the inside of the left side of the second valve sleeve and the inside of the right side of the second valve sleeve, the first gap cavity is communicated with the inside of the second valve seat, the second gap cavity is communicated with the first gap cavity in a releasable manner through the second valve, the inside of the second end cover is communicated with the second gap cavity, and the second end cover is communicated with the water outlet.

The first valve core comprises a first guide column and a first valve clack, the first guide column is fixed on the right side of the middle part of the first valve clack, the first guide column is positioned inside the right side of the first valve sleeve, the first valve clack is positioned inside the left side of the first valve sleeve, the longitudinal section area of the first valve clack is larger than that of the right part of the first valve sleeve, the outer side wall of the first valve clack can be in left-right fit type sliding connection with the inner side wall of the left part of the first valve sleeve through the first guide column, the right side wall of the first valve clack can be in releasable type abutting contact with the inner side wall of the middle part of the first valve sleeve, the first spring sleeve is arranged on the outer side wall of the first guide column, the bottom end of the first spring elastically abuts against the right side wall of the first valve clack, the bottom of the first valve clack is a first conical sealing surface, and the first valve seat is arranged between the first conical, the second valve core comprises a second guide column and a second valve clack, the second guide column is fixed on the right side of the middle part of the second valve clack, the second guide post is positioned inside the second valve housing on the right side, the second valve flap is positioned inside the second valve housing on the left side, the longitudinal section area of the second valve flap is larger than that of the right part of the second valve sleeve, the outer side wall of the second valve flap is connected on the inner side wall of the left part of the second valve sleeve in a left-right fit type sliding mode through the second guide column, the right side wall of the second valve flap is detachably abutted against the inner side wall of the middle part of the second valve sleeve, the second spring is sleeved on the outer side wall of the second guide post, the bottom end of the second spring is elastically abutted to the right side wall of the second valve flap, the bottom of the second valve flap is a second conical sealing surface, and the second valve is arranged between the second conical sealing surface and the top of the second valve seat.

The first valve sleeve is internally provided with a first guide cavity, the first valve seat is internally provided with a first water through cavity, the first end cover is internally provided with an inlet water through hole, the first gap cavity is respectively communicated with the left side of the first guide cavity and the middle right part of the first guide cavity, the first water through cavity and the left part of the first guide cavity are communicated and arranged in a releasable way through the first valve, the inlet water through hole is communicated with the water inlet, the first guide column is positioned at the middle right side of the first guide cavity, the first valve clack is positioned at the left side of the first guide cavity, the longitudinal section of the first valve clack is larger than that of the right part of the first guide cavity, the outer side wall of the first valve clack can be connected with the inner side wall of the first valve sleeve corresponding to the left side of the first guide cavity in a left-right fit manner through the first guide column in a sliding manner, and the right side wall of the first valve clack is abutted against the inner side wall of the first valve sleeve corresponding to the middle part of, the second valve seat is internally provided with a second water through cavity, the second valve sleeve is internally provided with a second guide cavity, the second end cover is internally provided with an outlet water through hole, the second gap cavity is respectively communicated with the left side of the second guide cavity and the middle part of the second guide cavity, the second water through cavity and the left part of the second guide cavity are communicated and arranged in a releasable way through a second valve, the outlet water through hole is communicated with a water outlet, the second guide post is positioned on the right side in the second guide cavity, the second valve is positioned on the left side of the second guide cavity, the longitudinal section of the second valve is larger than that of the right part of the second guide cavity, the outer side wall of the second valve is connected on the inner side wall of the second valve sleeve corresponding to the left side of the second guide cavity in a left-right fit-to-right fit manner through the second guide post in a sliding manner, and the right side wall of the second valve is abutted against the inner side wall of the second valve sleeve corresponding to the middle part of the second guide, the end cover is provided with a valve body limber hole, and the second water-through cavity is communicated with the first clearance cavity through the valve body limber hole.

The right part of the first valve sleeve is provided with a first through hole communicated with a first gap cavity and the right part of the first guide cavity in an equal-spacing ring mode, the first gap cavity is communicated with the right part of the first guide cavity in a through hole, the right part of the second valve sleeve is provided with a second through hole communicated with a second gap cavity and the right part of the second guide cavity in an equal-spacing ring mode, and the second gap cavity is communicated with the right part of the second guide cavity in a through hole.

The first valve sleeve left part equal-spacing ring is provided with a third through hole for communicating the first gap cavity with the first guide cavity left part, the first gap cavity passes through the third through hole and is communicated with the first guide cavity left part, the second valve sleeve left part equal-spacing ring is provided with a fourth through hole for communicating the second gap cavity with the second guide cavity left part, and the second gap cavity passes through the fourth through hole and is communicated with the second guide cavity left part.

First disk seat right-hand member portion outer wall with first valve barrel left end portion inner wall is equipped with the first screw thread that corresponds each other respectively, first valve barrel left end portion inner wall passes through first screw thread cover is established on the first disk seat right-hand member portion outer wall, second valve barrel right-hand member portion outer wall with second valve barrel left end portion inner wall is equipped with the second screw thread that corresponds each other respectively, second valve barrel left end portion inner wall passes through the second screw thread cover is established on the second valve barrel right-hand member portion outer wall.

A first flange connecting pipe is detachably fixed at the left end part of the valve body, the first flange connecting pipe is detachably fixed with the left end part of the valve body through a first circular flange, the right side of the first flanged joint pipe is hermetically abutted against the left side of the first end cover, the first flanged joint pipe is communicated with the water inlet, the interior of the first end cover is communicated with the first flange connecting pipe, the interior of the first end cover is communicated with the water inlet through the first flange connecting pipe, a second flange connecting pipe is detachably fixed at the right end part of the valve body, the second flange connecting pipe is detachably fixed with the right end part of the valve body through a second circular flange, the left side of the second flanged joint pipe is hermetically abutted against the right side of the second end cover, the second flanged joint pipe is communicated with the water outlet, the interior of the second end cover is communicated with the second flange connecting pipe, and the interior of the second end cover is communicated with the water outlet through the second flange connecting pipe.

The right side wall of the first flange connecting pipe is provided with a first containing groove for containing a first sealing ring, the right side wall of the first flange connecting pipe is in sealing and abutting contact with the left side wall of the first end cover through the first sealing ring, the right outer wall of the first end cover is provided with a second containing groove for containing a second sealing ring, the first end cover is fixed on the left inner wall of the valve body in a sealing and detachable manner through the second sealing ring, a third sealing ring is arranged between the outer wall of the first valve seat and the right inner wall of the first end cover, the first valve seat is fixed on the right inner wall of the first end cover through the third sealing ring in a sealing manner, a fourth sealing ring is arranged between the outer wall of the second valve seat and the right inner wall of the valve body in a sealing and detachable manner, the second valve seat is fixed on the right inner wall of the valve body in a sealing manner through the fourth sealing ring, and the left outer wall, the second end cover is fixed on the inner wall of the right end of the valve body in a sealing mode through a fifth sealing ring, a fourth accommodating groove for accommodating a sixth sealing ring is formed in the left side of the second flange connecting pipe, and the left side wall of the second flange connecting pipe is in sealing and abutting contact with the right side wall of the second end cover through the sixth sealing ring.

The utility model discloses a double unidirectional water filling valve, which comprises a valve body, a first end cover, a second end cover, a first unidirectional unit component and a second unidirectional unit component, wherein the middle part of the valve body is provided with an interlayer, the first end cover is detachably fixed inside the left end of the valve body in a sealing way, the second end cover is detachably fixed inside the right end of the valve body in a sealing way, the first unidirectional unit component comprises a first valve seat, a first valve sleeve, a first valve core and a first spring, the first valve seat is fixed inside the right side of the first end cover in a sealing way, the bottom of the first valve seat is abutted against the inner wall of the right side of the first end cover, the first valve sleeve is fixed inside the left side of the valve body, a first clearance cavity is arranged between the outer wall of the first valve sleeve and the inner wall of the left part of the valve body, the inner wall of the left end part of the first valve sleeve is sleeved, first valve barrel top with interlayer bottom fixed connection, first case left part lateral wall with laminating formula is slided and is connected about can between the first valve barrel left part inside wall and is connected, first case left part longitudinal section area is greater than the inside longitudinal section area in first valve barrel right side, first case left end portion right side wall with first valve barrel middle part inside wall can be relieved the formula and offset, first spring housing is established right part outer wall in the first case, first spring top with first valve barrel right-hand member left side wall elasticity offsets, first spring bottom with left part right side wall elasticity offsets in the first case, first case bottom with be equipped with first valve between the first disk seat top, first disk seat inside with pass through between the first valve barrel left side inside first valve can be relieved formula intercommunication and set up, first clearance cavity respectively with first valve barrel left side inside with in the first valve barrel right side inside with the first valve barrel The valve body is provided with a first end cover, a second end cover and a first valve seat, wherein the first end cover is communicated with the water inlet, the second one-way unit assembly is fixed inside the middle right side of the valve body, the second one-way unit assembly is communicated with the first gap cavity, a second gap cavity is arranged between the outer wall of the second one-way unit assembly and the inner wall of the right part of the valve seat, the second gap cavity is communicated with the first gap cavity in a releasable manner through the second one-way unit assembly, and the second one-way unit assembly is communicated with the water outlet. Thus, the interior of the first end cover is communicated with the water inlet, a medium with pressure in the water inlet enters the interior of the first end cover, the medium enters the interior of the first valve seat from the interior of the first end cover, the medium in the first valve seat provides a rightward acting force to the bottom of the first valve core, the rightward acting force to the first valve core is greater than the leftward acting force to the first valve core from the medium in the right side of the first valve sleeve, the spring force sleeved on the outer wall of the right middle part of the first valve core and the frictional force in the laminating and sliding between the outer side wall of the left side of the first valve core and the inner side wall of the left part of the first valve sleeve, the left part of the first valve core slides rightward in the interior of the left side of the first valve sleeve until the right side wall of the left end part of the first valve core is abutted against the inner side wall of the interior of the first valve sleeve, the first, the left side inner part of the first valve sleeve is communicated with the first clearance cavity, because the left longitudinal section area of the first valve core is larger than the longitudinal section area of the right side inner part of the first valve sleeve, and the left outer side wall of the first valve core and the left inner wall of the first valve sleeve are in left-right fit type sliding connection, a medium enters the left inner part of the first valve sleeve and is blocked by the left part of the first valve core, the medium inside the left side inner part of the first valve sleeve directly enters the first clearance cavity at the moment, the direct scouring of impurities in the medium on the first spring and the first valve core is avoided, the service life of the first valve is effectively prolonged, the left part of the first valve core slides rightwards in the left inner part of the first valve sleeve to compress the first spring, the volume of the right inner part of the right side of the first valve sleeve gradually reduces along with the rightward sliding of the left part of the first valve core, the inner side of the middle part of the first valve sleeve, the first valve is prevented from being opened to cause extra resistance, the second gap cavity can be in release type communication with the first gap cavity through the second one-way unit assembly, the medium in the first gap cavity flows to the second one-way unit assembly and enters the water outlet after entering the second gap cavity through the second one-way unit assembly, when the pressure of the water inlet is rapidly reduced, the medium at the water outlet can rapidly flow back, the reflowing medium can damage a power source, therefore, under the pushing of hydraulic power, the first valve core rapidly closes the first valve, the first gap cavity is communicated with the second one-way unit assembly, the medium at the water outlet is prevented from further flowing back, and the system is protected. The utility model discloses a two one-way water filling valves, the advantage that has for prior art is: the double-one-way unit structure provides double guarantee for the normal use of the valve, greatly reduces the failure probability of the valve and improves the operation stability of the valve.

Drawings

FIG. 1 is a cut-away interior view of a prior art dual one-way fill valve.

Fig. 2 is an internal sectional view of the dual unidirectional water filling valve of the utility model.

Description of the figures

1 … diaphragm 2 … valve body 3 … first end cap

4 … second end cap 5 … first valve seat 6 … first valve sleeve

7 … first spool 71 … first guide post 72 … first flap

73 … first conical sealing surface 8 … first spring 9 … first clearance cavity

10 … first guide hole 11 … first water through cavity 12 … inlet water through hole

13 … first guide chamber 14 … first through hole 15 … third through hole

16 … first flanged joint 17 … first circular flange 18 … first stud

19 … first socket head cap screw 20 … inlet cavity 21 … first valve

22 … valve body water through hole 23 … second valve seat 24 … second valve sleeve

25 … second spool 251 … second guide post 252 … second valve flap

253 … second conical sealing surface 26 … second spring 27 … second gap cavity

28 … second guide hole 29 … second through-flow chamber 30 … outlet through-flow hole

31 … second guide chamber 32 … second through hole 33 … fourth through hole

34 … second flanged joint 35 … second circular flange 36 … second stud

37 … second socket head cap screw 38 … outlet chamber 39 … second valve

40 … first seal 41 … second seal 42 … third seal

43 … fourth 44 … fifth 45 … sixth seal

Detailed Description

The dual one-way water filling valve of the present invention will be described in detail with reference to fig. 2 of the accompanying drawings.

The utility model relates to a double one-way water filling valve, please refer to fig. 2, comprising a valve body 2 with a middle part provided with an interlayer 1, a first end cover 3, a second end cover 4, and a first one-way unit component and a second one-way unit component communicated with the left and right sides of the interlayer 1, wherein the first end cover 3 is fixed inside the left end of the valve body 2 in a sealing and detachable way, the second end cover 4 is fixed inside the right end of the valve body 2 in a sealing and detachable way, the first one-way unit component comprises a first valve seat 5, a first valve sleeve 6, a first valve core 7 and a first spring 8, the first valve seat 5 is fixed inside the right side of the first end cover 3 in a sealing way, the bottom of the first valve seat 5 is abutted against the inner wall of the right side of the first end cover 3, the first valve sleeve 6 is fixed inside the left side of the valve body 2, a first clearance cavity 9 is arranged between the outer wall of, the inner wall of the left end of the first valve sleeve 6 is sleeved on the outer wall of the right end of the first valve seat 5, the top of the first valve sleeve 6 is fixedly connected with the bottom of the interlayer, the left outer side wall of the first valve element 7 is connected with the inner side wall of the left portion of the first valve sleeve 6 in a left-right fit sliding manner, the longitudinal cross-sectional area of the left portion of the first valve element 7 is larger than the longitudinal cross-sectional area of the inner side of the right portion of the first valve sleeve 6, the right side wall of the left end of the first valve element 7 is in releasable abutting contact with the inner side wall of the middle portion of the first valve sleeve 6, the first spring 8 is sleeved on the outer wall of the right portion of the first valve element 7, the top end of the first spring 8 is in elastic abutting contact with the left side wall of the right end of the first valve sleeve 6, the bottom of the first spring 8 is in elastic contact with the right side wall of the left portion of, the interior of the first valve seat 5 is placed in releasable communication with the interior of the left side of the first valve housing 6 via the first valve 21, the first gap cavity 9 is respectively communicated with the left inside of the first valve sleeve 6 and the right inside of the first valve sleeve 6, the interior of the first end cover 3 is communicated with the interior of the first valve seat 5, the interior of the first end cover 3 is communicated with the water inlet, the second one-way unit component is fixed inside the right side of the valve body 2 and is communicated with the first clearance cavity 9, a second gap cavity 27 is arranged between the outer wall of the second one-way unit component and the inner wall of the right part of the valve body 2, the second gap cavity 27 is in releasable communication with the first gap cavity 9 through the second unidirectional unit assembly, which is in communication with the water outlet. Specifically, the inside of the first end cover 3 is communicated with the water inlet, a medium with pressure in the water inlet enters the inside of the first end cover 3, the medium enters the inside of the first valve seat 5 from the inside of the first end cover 3, the medium in the first valve seat 5 provides a rightward acting force to the bottom of the first valve core 7, the rightward acting force to the first valve core 7 is larger than the leftward acting force to the first valve core 7 by the medium in the right side of the first valve sleeve 6, the spring force sleeved on the outer wall of the right side of the first valve core 7 and the friction force in the fitting sliding between the outer wall of the left side of the first valve core 7 and the inner wall of the left side of the first valve sleeve 6, the left part of the first valve core 7 slides rightward in the inside of the left side of the first valve sleeve 6 until the right side wall of the left end part of the first valve core 7 abuts against the inside of the first valve sleeve 6, the first valve 21 is always in an open, the medium enters the left inside of the first valve sleeve 6, the left inside of the first valve sleeve 6 is communicated with the first clearance cavity 9, because the longitudinal cross-sectional area of the left part of the first valve core 7 is larger than the longitudinal cross-sectional area of the right inside of the first valve sleeve 6, and the left outer side wall of the first valve core 7 is in left-right fit type sliding connection with the left inside wall of the first valve sleeve 6, the medium is blocked by the left part of the first valve core 7 after entering the left inside of the first valve sleeve 6, the medium inside the left side of the first valve sleeve 6 directly enters the first clearance cavity 9 at the moment, so that the direct scouring of the first spring 8 and the first valve core 7 by the impurities in the medium is avoided, the service life of the first valve 21 is effectively prolonged, the left part of the first valve core 7 slides rightwards in the left inside of the first valve sleeve 6 to compress the first spring 8, the volume of the right inside of the first valve sleeve 6 is gradually reduced, the inner side of the middle part of the first valve sleeve 6 is communicated with the first clearance cavity 9, the medium in the right side of the first valve sleeve 6 is compressed to enter the first clearance cavity 9 to avoid causing additional resistance to the opening of the first valve 21, the second clearance cavity 27 can be in releasing communication with the first clearance cavity 9 through the second one-way unit component, the medium in the first clearance cavity 9 flows to the second one-way unit component, enters the second clearance cavity 27 through the second one-way unit component and then enters the water outlet, when the pressure of the water inlet is rapidly reduced, the medium at the water outlet can rapidly flow back, the backflow medium can cause damage to the power source, therefore, the first valve core 7 is pushed by hydraulic force to quickly close the first valve 21 and the first gap cavity 9 is communicated with the second one-way unit component, so that the medium at the water outlet is prevented from further flowing back, and the system is protected. Compared with the prior art, the advantages are as follows: the double-one-way unit structure provides double guarantee for the normal use of the valve, greatly reduces the failure probability of the valve and improves the operation stability of the valve. Can also first hexagon socket head cap screw 19 wear to locate perpendicularly on the 2 left side walls of valve body from 3 left side walls of first end cover, first end cover 3 is detachable to be fixed through first hexagon socket head cap screw 19 inside the 2 left ends of valve body, second hexagon socket head cap screw 37 is worn to locate perpendicularly on the 2 right side walls of valve body from 4 right side walls of second end cover, and second end cover 4 passes through second hexagon socket head cap screw 37 detachable to be fixed inside the 2 right-hand members of valve body. The horizontal section of the first valve seat 5 can be a first cylindrical valve seat with three stepped shapes, the area of the longitudinal section of the first valve seat is gradually reduced from left to right, the first cylindrical valve seat comprises a first step, a second step and a third step, the outer side wall of the first step on the left side is in sealing connection with the inner wall on the left side of the valve body 2, the left end part of the first valve sleeve 6 is fixed on the right side wall of the first step on the left side and the right side wall of the second step in the middle, and a first valve 21 is arranged between the bottom of the first valve core 7 and the inner wall on the right side of.

The utility model discloses a two one-way water filling valves, please refer to fig. 2 and show, can also be on the basis of the technical scheme of the preceding description: the second one-way unit component comprises a second valve seat 23, a second valve sleeve 24, a second valve core 25 and a second spring 26, the second valve seat 23 is fixed in the right end of the valve body 2 in a sealing manner, the bottom of the second valve seat 23 is fixedly connected with the top of the partition plate, the second valve sleeve 24 is fixed in the right side of the valve body 2, the second gap cavity 27 is arranged between the outer wall of the second valve sleeve 24 and the inner wall of the right end of the valve body 2, the inner wall of the left end of the second valve sleeve 24 is sleeved on the outer wall of the right end of the second valve seat 23, the top of the second valve sleeve 24 is abutted against the bottom of the second end cover 4, the left outer side wall of the second valve core 25 is connected with the left inner side arm of the second valve sleeve 24 in a left-right fitting manner in a sliding manner, and the left longitudinal cross-portion cross-section area of the second valve core 25 is larger than the right, the right side wall of the left end part of the second valve core 25 is in releasable contact with the inner side wall of the middle part of the second valve sleeve 24, the second spring 26 is sleeved on the outer wall of the right part of the second valve core 25, the top end of the second spring 26 is in elastic contact with the left side wall of the right end of the second valve sleeve 24, the bottom end of the second spring 26 is in elastic contact with the right side wall of the left part of the second valve core 25, a second valve 39 is arranged between the bottom of the second valve core 25 and the top of the second valve seat 23, the interior of the second valve seat 23 is in releasable communication with the interior of the second valve sleeve 24 through the second valve 39, the second gap cavity 27 is respectively in communication with the interior of the left side of the second valve sleeve 24 and the interior of the right side of the second valve sleeve 24, the first gap cavity 9 is in communication with the interior of the second valve seat 23, and the second gap cavity 27 is in releasable communication with the first gap cavity 9 through the second valve 39, the interior of the second end cap 4 is communicated with the second gap cavity 27, and the second end cap 4 is communicated with the water outlet. Thus, the first clearance cavity 9 is communicated with the interior of the second valve seat 23, when the medium in the first clearance cavity 9 enters the interior of the second valve seat 23, the medium in the second valve seat 23 provides a rightward acting force to the bottom of the second valve core 25, and the rightward acting force to the second valve core 25 is greater than the leftward acting force to the second valve core 25 by the right-side internal medium in the second valve sleeve 24, the spring force sleeved on the right-side outer wall in the second valve core 25 and the friction force in the joint sliding between the left-side outer wall of the second valve core 25 and the left-side inner wall of the second valve sleeve 24, the left part of the second valve core 25 slides rightward in the left-side interior of the second valve sleeve 24 until the right-side wall of the left end part of the second valve core 25 abuts against the inner side wall in the second valve sleeve 24, the second valve 39 is always in an open state, the interior of the second valve seat 23 is communicated with the left-side interior of, the left inside of the second valve sleeve 24 is communicated with the second clearance cavity 27, because the left longitudinal section area of the second valve core 25 is larger than the right longitudinal section area of the second valve sleeve 24, and the left outer side wall of the second valve core 25 is in a contact type left-right sliding connection with the left inside wall of the second valve sleeve 24, the medium enters the left inside of the second valve sleeve 24 and is blocked by the left part of the second valve core 25, the medium inside the left side of the second valve sleeve 24 directly enters the second clearance cavity 27 at this time, so that the direct flushing of impurities in the medium to the second spring 26 and the second valve core 25 is avoided, the service life of the second valve 39 is effectively prolonged, the left part of the second valve core 25 slides rightwards in the left inside of the second valve sleeve 24 to compress the second spring 26, the right inside of the second valve sleeve 24 gradually reduces along with the rightward sliding volume of the left part of the second valve core 25, and the right inside of the second valve sleeve 24 is communicated with the second clearance cavity 27, the medium inside the right side of the second valve sleeve 24 is compressed to enter the second gap cavity 27, so that extra resistance caused by opening of the second valve 39 is avoided, when the pressure of the medium flow in and out of the second gap cavity 27 is rapidly reduced, the medium at the water outlet can rapidly flow back, and the returned medium can damage a power source, so that the first valve core 7 and the second valve core 25 can be rapidly closed by the pushing of hydraulic power, the corresponding first valve 21 and the second valve core 39 are prevented from further flowing back, the system is protected, and when one valve core is damaged and the tightness of valve closure cannot be guaranteed, the other one-way valve core can still play a role, the probability of valve closure failure is effectively reduced, and the working efficiency of the pre-filling water ring section is greatly improved. The horizontal section of the second valve seat 23 can be a third step-shaped second cylindrical valve seat with gradually reduced longitudinal section area from left to right, the second cylindrical valve seat comprises a fourth step, a fifth step and a sixth step, the outer side wall of the fourth step on the left side is hermetically connected with the inner side wall of the right end of the valve body 2, the left end part of the second valve sleeve 24 is fixed on the right side wall of the fourth step on the left side and the right side wall of the fifth step in the middle, and a second valve 39 is arranged between the bottom of the second valve core 25 and the right side wall of the sixth step on the right side. The further preferable technical scheme on the basis of the technical scheme described above is as follows: the first valve element 7 comprises a first guide pillar 71 and a first valve flap 72, the first guide pillar 71 is fixed on the right side of the middle of the first valve flap 72, the first guide pillar 71 is located inside the right side of the first valve housing 6, the first valve flap 72 is located inside the left side of the first valve housing 6, the longitudinal cross-sectional area of the first valve flap 72 is larger than the longitudinal cross-sectional area of the right side of the first valve housing 6, the outer side wall of the first valve flap 72 is slidably connected to the inner side wall of the left side of the first valve housing 6 in a left-right fit manner through the first guide pillar 71, the right side wall of the first valve flap 72 is detachably abutted against the inner side wall of the middle of the first valve housing 6, the first spring 8 is sleeved on the outer side wall of the first guide pillar 71, the bottom end of the first spring 8 is elastically abutted against the right side wall of the first valve flap 72, and the bottom of the first valve flap 72 is a first tapered sealing surface 73, the first valve 21 is disposed between the first conical sealing surface 73 and the top of the first valve seat 5, the second valve core 25 comprises a second guide column 251 and a second valve flap 252, the second guide column 251 is fixed on the right side of the middle of the second valve flap 252, the second guide column 251 is disposed inside the right side of the second valve housing 24, the second valve flap 252 is disposed inside the left side of the second valve housing 24, the longitudinal cross-sectional area of the second valve flap 252 is larger than the longitudinal cross-sectional area of the right side of the second valve housing 24, the outer side wall of the second valve flap 252 is slidably connected to the inner side wall of the left portion of the second valve housing 24 in a left-right fit manner through the second guide column 251, the right side wall of the second valve flap 252 is releasably abutted against the inner side wall of the middle of the second valve housing 24, the second spring 26 is sleeved on the outer side wall of the second guide column, and the bottom end of the second spring 26 is elastically abutted against the right side wall of the second valve flap 252, the second valve flap 252 has a second conical sealing surface 253 at the bottom, and the second valve 39 is disposed between the second conical sealing surface 253 and the top of the second valve seat 23. Thus, when the medium in the first valve seat 5 provides a rightward acting force to the first conical sealing surface 73, the first conical sealing surface 73 pushes the first valve flap 72 to slide rightward until the right side wall of the first valve flap 72 abuts against the inner side wall of the first valve sleeve 6, the first valve 21 is always in an open state, the medium enters the left side of the first valve sleeve 6, because the longitudinal cross-sectional area of the first valve flap 72 is larger than the longitudinal cross-sectional area of the right part of the first valve sleeve 6, and the outer side wall of the first valve flap 72 is in left-right fitting type sliding connection with the left side inner wall of the first valve sleeve 6, the medium is blocked by the first valve flap 72 after entering the left side of the first valve sleeve 6, the medium inside the left side of the first valve sleeve 6 directly enters the first clearance cavity 9 at this time, so as to prevent impurities in the medium from directly washing the first spring 8 and the first valve core 7, the service life of the first valve 21 is effectively prolonged, and when the medium in the second valve seat 23, the second conical sealing surface 253 pushes the second valve clack 252 to slide rightwards until the right side wall of the second valve clack 252 abuts against the inner side wall of the interior of the second valve sleeve 24, the second valve 39 is always in an open state, a medium enters the interior of the left side of the second valve sleeve 24, because the longitudinal cross-sectional area of the second valve clack 252 is larger than that of the right side of the second valve sleeve 24, the outer side wall of the second valve clack 252 is connected with the inner side wall of the left side of the second valve sleeve 24 in a left-right fitting type sliding mode, the medium enters the interior of the left side of the second valve sleeve 24 and is blocked by the second valve clack 252, the medium inside the left side of the second valve sleeve 24 directly enters the second gap cavity 27 at the moment, impurities in the medium are prevented from directly washing the second spring 26 and the. It is also possible to provide the first valve 21 between the first conical sealing surface 73 and the top of the first valve seat 5, the first valve 21 being a first conical valve, the second valve 39 between the second conical sealing surface 253 and the top of the second valve seat 23, the second valve 39 being a second conical valve. And a first guide hole 10 is formed in the middle of the partition plate. Thus, when the medium provides a rightward force to the first conical sealing surface 73, the first valve flap 72 pushes the first guide post 71 to slide rightward in the first valve sleeve 6, and the first guide hole 10 provides a guide function for the first guide post 71. A second guide hole 28 may be further provided at the right end portion of the second valve housing 24, and the second guide post 251 is slidably moved rightward into the second guide hole 28. Thus, the second valve flap 252 pushes the second guide 251 to slide rightward in the right portion of the second valve housing 24, and the second guide hole 28 provides a guide for the second guide 251. The further preferable technical scheme on the basis of the technical scheme described above is as follows: the first valve sleeve 6 is internally provided with a first guide cavity 13, the first valve seat 5 is internally provided with a first water through cavity 11, the first end cover 3 is internally provided with an inlet water through hole 12, the first gap cavity 9 is respectively communicated with the left side of the first guide cavity 13 and the middle right part of the first guide cavity 13, the first water through cavity 11 and the left part of the first guide cavity 13 are communicated and arranged in a releasable way through the first valve 21, the inlet water through hole 12 is communicated with a water inlet, the first guide column 71 is positioned at the middle right side of the first guide cavity 13, the first valve flap 72 is positioned at the left side of the first guide cavity 13, the longitudinal section of the first valve flap 72 is larger than that of the left part of the first guide cavity 13, the outer side wall of the first valve flap 72 is connected with the inner side wall of the first valve sleeve 6 corresponding to the left side of the first guide cavity 13 in a left-right fit way through the first guide column 71 in a sliding way, the right side wall of the first valve flap 72 is releasably abutted with the inner side wall of the first valve sleeve 6 corresponding to the middle of the first guide cavity 13, the second valve seat 23 is internally provided with a second water through cavity 29, the second valve sleeve 24 is internally provided with a second guide cavity 31, the second end cover 4 is internally provided with an outlet water through hole 30, the second gap cavity 27 is respectively communicated with the left side of the second guide cavity 31 and the middle of the second guide cavity 31, the second water through cavity 29 and the left side of the second guide cavity 31 are releasably communicated through the second valve 39, the outlet water through hole 30 is communicated with a water outlet, the second guide column 251 is positioned at the right side of the second guide cavity 31, the second valve flap 252 is positioned at the left side of the second guide cavity 31, the longitudinal section of the second valve flap 252 is larger than the longitudinal section of the right side of the second guide cavity 31, and the outer side wall of the second valve flap 252 is slidably connected to the left side 31 of the second guide cavity through the second guide column 251 in a left-right engaging manner And the right side wall of the second valve flap 252 is detachably abutted against the inner side wall of the second valve sleeve 24 corresponding to the middle part of the second guide cavity 31 on the inner side wall of the second valve sleeve 24 corresponding to the side, the end cover is provided with a valve body limber hole 22, and the second limber cavity 29 is communicated with the first clearance cavity 9 through the valve body limber hole 22. Thus, a medium with pressure in the water inlet enters the water inlet and water through hole, the medium enters the first water through hole 11 from the water inlet and water through hole, the medium in the first water through hole 11 provides a rightward acting force to the first conical sealing surface 73, the first conical sealing surface 73 pushes the first valve clack 72 to slide rightward until the right side wall of the first valve clack 72 abuts against the inner side wall of the inner part of the first valve sleeve 6, the first valve 21 is always in an open state, the first water through hole 11 is communicated with the inner part of the left side of the first guide cavity 13, the medium enters the left side of the first guide cavity 13, the left side of the first guide cavity 13 is communicated with the first gap cavity 9, the medium on the left side of the first guide cavity 13 directly enters the first gap cavity 9 at the moment, the direct scouring of impurities in the medium on the first spring 8 and the first valve core 7 is avoided, the service life of the first valve 21 is effectively prolonged, the middle part of the first guide cavity 13 is communicated with the first gap, the medium in the first guide cavity 13 on the right side is compressed to enter the first clearance cavity 9 to avoid causing extra resistance to the opening of the first valve 21, the first clearance cavity 9 is communicated with the second water through cavity 29 through the valve body water through hole 22, when the medium in the first clearance cavity 9 enters the second water through cavity 29, the medium in the second water through cavity 29 provides a rightward acting force to the bottom of the second conical sealing surface 253, the second conical sealing surface 253 pushes the second valve flap 252 to slide rightward until the right side wall of the second valve flap 252 abuts against the inner side wall in the second valve sleeve 24, the second valve 39 is always in an open state, the second water through cavity 29 is communicated with the inside of the left side of the second guide cavity 31, the medium enters the left side of the second guide cavity 31, the left side of the second guide cavity 31 is communicated with the second clearance cavity 27, the medium on the left side of the second guide cavity 31 directly enters the second clearance cavity 27 at this time, the direct flushing of impurities in the medium to the second spring 26 and the second valve core 25 is avoided, the service life of the first valve 21 is effectively prolonged, the middle of the second guide cavity 31 is communicated with the second gap cavity 27, the medium in the right side of the second guide cavity 31 is compressed to enter the second gap cavity 27, and extra resistance to the opening of the second valve 39 is avoided. The further preferable technical scheme on the basis of the technical scheme described above is as follows: the right part of the first valve sleeve 6 is provided with a first through hole 14 for communicating the first gap cavity 9 with the right part of the first guide cavity 13, the first gap cavity 9 is communicated with the right part of the first guide cavity 13 through the first through hole 14, the right part of the second valve sleeve 24 is provided with a second through hole 32 for communicating the second gap cavity 27 with the right part of the second guide cavity 31, and the second gap cavity 27 is communicated with the right part of the second guide cavity 31 through the second through hole 32. Thus, when the first valve 21 is opened, the medium enters the left side of the first guide cavity 13, the medium entering the left side of the first guide cavity 13 enters the first clearance cavity 9 through the first through hole 14, the first water through hole is annularly arranged at the right part of the first valve sleeve 6 at equal intervals to further accelerate the flow of the medium, when the second valve 39 is opened, the medium enters the left side of the second guide cavity 31, the medium entering the left side of the second guide cavity 31 enters the second clearance cavity 27 through the second through hole 32, the second water through hole is annularly arranged at the right part of the second valve sleeve 24 at equal intervals to further accelerate the flow of the medium.

The utility model discloses a two one-way water filling valves, please refer to fig. 2 and show, can also be on the basis of the technical scheme of the preceding description: first valve barrel 6 left part equidistant ring be equipped with communicate first clearance cavity 9 with the third through-hole 15 of first direction chamber 13 left part, first clearance cavity 9 passes through third through-hole 15 with first direction chamber 13 left part intercommunication, 24 left parts equidistant rings of second valve barrel be equipped with communicate second clearance cavity 27 with the fourth through-hole 33 of second direction chamber 31 left part, second clearance cavity 27 passes through fourth through-hole 33 with second direction chamber 31 left part intercommunication. Thus, when the first valve flap 72 pushes the first guide post 71 to move rightwards, the volume of the right side of the first guide cavity 13 gradually decreases along with the rightward sliding of the left part of the first valve flap 72, the medium on the right side of the first guide cavity 13 is compressed through the third through hole 15 and enters the first clearance cavity 9, the third through holes 15 are arranged on the left part of the first valve sleeve 6 at equal intervals, the fluidity of the medium is accelerated, and the additional resistance caused by the opening of the first valve 21 is further avoided, when the second valve clack 252 pushes the second guide column 251 to move rightwards, the volume of the right side in the second guide cavity 31 gradually decreases along with the rightward sliding of the left part of the second valve clack 252, a medium on the right side of the second guide cavity 31 is compressed through the fourth through hole 33 and enters the second gap cavity 27, and the fourth through holes 33 are arranged on the left part of the second valve sleeve 24 at equal intervals, so that the fluidity of the medium is accelerated, and the additional resistance caused by the opening of the second valve 39 is further avoided.

The utility model discloses a two one-way water filling valves, please refer to fig. 2 and show, can also be on the basis of the technical scheme of the preceding description: 5 right-hand member outer walls of first disk seat with 6 left end inner walls of first valve barrel are equipped with the first screw thread that corresponds each other respectively, 6 left end inner walls of first valve barrel pass through first screw thread cover is established on 5 right end outer walls of first disk seat, 23 right-hand member outer walls of second valve seat with 23 left end inner walls of second disk seat are equipped with the second screw thread that corresponds each other respectively, 24 left end inner walls of second valve barrel pass through the second screw thread cover is established on 23 right end outer walls of second disk seat. Thus, the inner wall of the left end of the first valve sleeve 6 is sleeved on the outer wall of the right end of the first valve seat 5 through the first threads, so that the connection reliability of the first valve sleeve is ensured, and the inner wall of the left end of the second valve sleeve 24 is sleeved on the outer wall of the right end of the second valve seat 23 through the second threads, so that the connection reliability of the second valve sleeve is ensured.

The utility model discloses a two one-way water filling valves, please refer to fig. 2 and show, can also be on the basis of the technical scheme of the preceding description: a first flange connecting pipe 16 is detachably fixed at the left end of the valve body 2, the first flange connecting pipe 16 is detachably fixed with the left end of the valve body 2 through a first circular flange 17, the right side of the first flange connecting pipe 16 is hermetically abutted against the left side of the first end cover 3, the first flange connecting pipe 16 is communicated with the water inlet, the inside of the first end cover 3 is communicated with the first flange connecting pipe 16, the inside of the first end cover 3 is communicated with the water inlet through the first flange connecting pipe 16, the right end of the valve body 2 is detachably fixed with a second flange connecting pipe 34, the second flange connecting pipe 34 is detachably fixed with the right end of the valve body 2 through a second circular flange 35, the left side of the second flange connecting pipe 34 is hermetically abutted against the right side of the second end cover 4, the second flange connecting pipe 34 is communicated with the water inlet, the inside of the second end cover 4 is communicated with the second flange connecting pipe 34, the interior of the second end cap 4 is in communication with the water outlet via a second flanged connection 34. Thus, the first flange connecting pipe 16 is detachably fixed with the left end part of the valve body 2 through the first circular flange 17, the structure is simple, the connection reliability is guaranteed, and the second flange connecting pipe 34 is detachably fixed with the right end part of the valve body 2 through the second circular flange 35, the structure is simple, and the connection reliability is guaranteed. The first circular flange 17 can be detachably fixed on the left end of the valve body 2 through a first stud 18, and the second circular flange 35 can be detachably fixed on the right end of the valve body 2 through a second stud 36. The first flanged connection pipe 16 may also have an inlet cavity 20 therein, the first flanged connection pipe 16 is communicated with the water inlet through the inlet cavity 20, the second flanged connection pipe 34 has an outlet cavity 38 therein, and the second flanged connection pipe 34 is communicated with the water outlet through the outlet cavity 38. On the basis of the technical scheme described above, the method can also comprise the following steps: the right side wall of the first flange connecting pipe is provided with a first accommodating groove for accommodating a first sealing ring 40, the right side wall of the first flange connecting pipe 16 is in sealing and abutting contact with the left side wall of the first end cover 3 through the first sealing ring 40, the outer wall of the right end of the first end cover 3 is provided with a second accommodating groove for accommodating a second sealing ring 41, the first end cover 3 is in sealing and detachable fixation on the inner wall of the left end of the valve body 2 through the second sealing ring 41, a third sealing ring 42 is arranged between the outer wall of the first valve seat 5 and the inner wall of the right end of the first end cover 3, the first valve seat 5 is in sealing and fixing on the inner wall of the right end of the first end cover 3 through the third sealing ring 42, a fourth sealing ring 43 is arranged between the outer wall of the second valve seat 23 and the inner wall of the right end in the valve body 2, and the second valve seat 23 is in sealing and, the outer wall of the left end of the second end cover 4 is provided with a third accommodating groove for accommodating a fifth sealing ring 44, the second end cover 4 is fixed on the inner wall of the right end of the valve body 2 in a sealing mode through the fifth sealing ring 44, the left side of the second flange connecting pipe 34 is provided with a fourth accommodating groove for accommodating a sixth sealing ring 45, and the left side wall of the second flange connecting pipe 34 is abutted to the right side wall of the second end cover 4 in a sealing mode through the sixth sealing ring 45. Thus, the right side wall of the first flanged pipe 16 is in sealing contact with the left side wall of the first end cover 3 through the first sealing ring 40, so as to ensure the sealing performance between the right side wall of the first flanged pipe 16 and the left side wall of the first end cover 3 and prevent the medium from leaking laterally, the first end cover 3 is in sealing detachable fixation on the left end inner wall of the valve body 2 through the second sealing ring 41, so as to ensure the sealing performance between the first end cover 3 and the left end inner wall of the valve body 2 and prevent the medium from leaking laterally, the first valve seat 5 is in sealing fixation on the right end inner wall of the first end cover 3 through the third sealing ring 42, so as to ensure the sealing performance between the first valve seat 5 and the right end inner wall of the first end cover 3 and prevent the medium from leaking laterally, the second valve seat 23 is in sealing detachable fixation on the right end inner wall of the valve body 2 through the fourth sealing ring 43, so as to ensure the sealing performance between the second valve seat 23 and the right end inner wall of the valve, guarantee the leakproofness of second end cover 4 and the inside wall of valve body 2 right-hand member, prevent medium side leakage, second flange is taken over 34 left side walls and is passed through sealed the counterbalance of sixth sealing washer 45 with the 4 right side walls of second end cover, guarantees the leakproofness of the 34 left side walls of second flange and the 4 right side walls of second end cover, prevents medium side leakage.

The above description is only for the description of several embodiments of the present invention, but the scope of the present invention should not be considered as falling within the scope of the present invention, in which all the equivalent changes or modifications or the equal-scale enlargement or reduction etc. according to the design spirit of the present invention are made.

Claims

1. A two one-way water filling valve which is characterized in that: be provided with valve body (2), first end cover (3), second end cover (4) of interlayer (1) including the middle part and with the one-way unit subassembly of first one-way unit subassembly and the one-way unit subassembly of second of interlayer (1) left and right sides intercommunication, first end cover (3) are sealed detachable to be fixed inside valve body (2) left end, second end cover (4) are sealed detachable to be fixed inside valve body (2) right-hand member, first one-way unit subassembly includes first disk seat (5), first valve barrel (6), first case (7) and first spring (8), first disk seat (5) are sealed to be fixed inside first end cover (3) right side, first disk seat (5) bottom with first end cover (3) right side inner wall offsets, first valve barrel (6) are fixed inside left side in valve body (2), first valve barrel (6) outer wall with be equipped with first clearance cavity (9) between the left part inner wall in valve body (2) ) The inner wall of the left end part of the first valve sleeve (6) is sleeved on the outer wall of the right end part of the first valve seat (5), the top of the first valve sleeve (6) is fixedly connected with the bottom of the interlayer (1), the left outer side wall of the first valve core (7) and the inner side wall of the left part of the first valve sleeve (6) can be connected in a left-right fit sliding manner, the longitudinal cross-sectional area of the left part of the first valve core (7) is larger than the longitudinal cross-sectional area of the inner side of the right side of the first valve sleeve (6), the right side wall of the left end part of the first valve core (7) and the inner side wall of the middle part of the first valve sleeve (6) can be offset in a release manner, the first spring (8) is sleeved on the outer wall of the middle right part of the first valve core (7), the top end of the first spring (8) is elastically offset with the left side wall of the right end part of the first valve sleeve (6), and the bottom end of the, a first valve (21) is arranged between the bottom of the first valve core (7) and the top of the first valve seat (5), the interior of the first valve seat (5) and the interior of the left side of the first valve sleeve (6) are in releasable communication through the first valve (21), the first gap cavity (9) is respectively in communication with the interior of the left side of the first valve sleeve (6) and the interior of the right side of the middle of the first valve sleeve (6), the interior of the first end cover (3) is in communication with the interior of the first valve seat (5), the interior of the first end cover (3) is communicated with a water inlet, the second one-way unit component is fixed in the interior of the right side of the valve body (2), the second one-way unit component is communicated with the first gap cavity (9), a second gap cavity (27) is arranged between the outer wall of the second one-way unit component and the inner wall of the right part of the valve body (2), the second gap cavity (27) is in releasable communication with the first gap cavity (9) through the second one-way unit assembly, and the second one-way unit assembly is communicated with the water outlet.

2. A bi-unidirectional water fill valve as defined in claim 1, wherein: the second one-way unit component comprises a second valve seat (23), a second valve sleeve (24), a second valve core (25) and a second spring (26), the second valve seat (23) is fixed inside the middle right end of the valve body (2) in a sealing mode, the bottom of the second valve seat (23) is fixedly connected with the top of the interlayer (1), the second valve sleeve (24) is fixed inside the middle right side of the valve body (2), a second gap cavity (27) is arranged between the outer wall of the second valve sleeve (24) and the inner wall of the middle right part of the valve body (2), the inner wall of the left end part of the second valve sleeve (24) is sleeved on the outer wall of the right end part of the second valve seat (23), the top of the second valve sleeve (24) is abutted against the bottom of the second end cover (4), and the left outer wall of the second valve core (25) and the left inner side arm of the second valve sleeve (24) can be connected in a left-right fitting mode in a sliding mode, the area of the longitudinal section of the left part of the second valve core (25) is larger than the area of the longitudinal section of the inside of the right side of the second valve sleeve (24), the right side wall of the left end part of the second valve core (25) is in releasable abutment with the inner side wall of the middle part of the second valve sleeve (24), the second spring (26) is sleeved on the outer wall of the middle right part of the second valve core (25), the top end of the second spring (26) is in elastic abutment with the left side wall of the right end of the second valve sleeve (24), the bottom end of the second spring (26) is in resilient abutment with the right side wall of the middle left part of the second valve core (25), a second valve (39) is arranged between the bottom of the second valve core (25) and the top of the second valve seat (23), the inside of the second valve seat (23) is in releasable communication with the inside of the second valve sleeve (24) through the second valve (39), and the second gap cavity (27) is respectively communicated with the inside of the left side of the second valve sleeve (24) and the inside of the middle, the first gap cavity (9) is communicated with the interior of the second valve seat (23), the second gap cavity (27) is communicated with the first gap cavity (9) in a releasable mode through a second valve (39), the interior of the second end cover (4) is communicated with the second gap cavity (27), and the second end cover (4) is communicated with the water outlet.

3. A bi-unidirectional water fill valve as defined in claim 2 wherein: the first valve core (7) comprises a first guide column (71) and a first valve clack (72), the first guide column (71) is fixed on the right side of the middle part of the first valve clack (72), the first guide column (71) is positioned inside the middle right side of the first valve sleeve (6), the first valve clack (72) is positioned inside the left side of the first valve sleeve (6), the longitudinal section area of the first valve clack (72) is larger than that of the right part of the first valve sleeve (6), the outer side wall of the first valve clack (72) is connected to the inner side wall of the left part of the first valve sleeve (6) in a left-right fit mode through the first guide column (71) in a sliding mode, the right side wall of the first valve clack (72) is abutted against the inner side wall of the middle part of the first valve sleeve (6) in a releasable mode, a first spring (8) is sleeved on the outer side wall of the first guide column (71), and the bottom end of the first spring (8) is elastically abutted against the right side wall of the first valve cla, the bottom of the first valve flap (72) is a first conical sealing surface (73), the first valve (21) is arranged between the first conical sealing surface (73) and the top of the first valve seat (5), the second valve core (25) comprises a second guide column (251) and a second valve flap (252), the second guide column (251) is fixed on the right side of the middle part of the second valve flap (252), the second guide column (251) is positioned in the middle right side of the second valve sleeve (24), the second valve flap (252) is positioned in the left side of the second valve sleeve (24), the longitudinal cross-sectional area of the second valve flap (252) is larger than that of the right part of the second valve sleeve (24), the outer side wall of the second valve flap (252) can be in left-right fit type sliding connection with the inner side wall of the left part of the second valve sleeve (24) through the second guide column (251), the right side wall of the second valve flap (252) can be in releasable contact with the middle part of the inner side wall of the second valve sleeve (24), the second spring (26) is sleeved on the outer side wall of the second guide column (251), the bottom end of the second spring (26) is elastically abutted to the right side wall of the second valve clack (252), the bottom of the second valve clack (252) is a second conical sealing surface (253), and the second valve (39) is arranged between the second conical sealing surface (253) and the top of the second valve seat (23).

4. A bi-unidirectional water fill valve as defined in claim 3 wherein: first valve barrel (6) inside is first direction chamber (13), first disk seat (5) inside is first logical water cavity 11, first end cover (3) inside is import limbers 12, first clearance cavity (9) respectively with first direction chamber (13) left side with right part intercommunication sets up in first direction chamber (13), first logical water cavity 11 with first direction chamber (13) left part is passed through first valve (21) releasable formula intercommunication sets up, import limbers 12 and water inlet intercommunication, first guide post (71) are located right side in first direction chamber (13), first valve clack (72) are located first direction chamber (13) left side, first valve clack (72) longitudinal section is greater than first direction chamber (13) right part longitudinal section, first valve clack (72) lateral wall passes through first guide post (71) can control laminating formula and slide and connect about first direction chamber (13) left side corresponds the valve clack (72) lateral wall On the inner side wall of the first valve sleeve (6), the right side wall of the first valve clack (72) is in releasable abutting contact with the inner side wall of the first valve sleeve (6) corresponding to the middle of the first guide cavity (13), the second valve seat (23) is internally provided with a second water through cavity (29), the second valve sleeve (24) is internally provided with a second guide cavity (31), the second end cover (4) is internally provided with an outlet water through hole (30), the second gap cavity (27) is respectively communicated with the left side of the second guide cavity (31) and the middle of the second guide cavity (31), the second water through cavity (29) is communicated with the left part of the second guide cavity (31) in a releasable manner through the second valve (39), the outlet water through hole (30) is communicated with a water outlet, the second guide column (251) is positioned on the middle right side of the second guide cavity (31), and the second valve clack (252) is positioned on the left side of the second guide cavity (31), second valve clack (252) longitudinal section is greater than second direction chamber (31) right part longitudinal section, second valve clack (252) lateral wall passes through laminating formula about second guide post (251) cocoa slide connect in on second direction chamber (31) left side corresponding second valve barrel (24) inside wall, second valve clack (252) right side wall with second direction chamber (31) middle part corresponding second valve barrel (24) inside wall releasable counterbalance, the end cover is equipped with valve body limbers (22), second limbers (29) through valve body limbers (22) with first clearance cavity (9) intercommunication.

5. A bi-unidirectional water filling valve as defined in claim 4 wherein: first valve barrel (6) middle right part equal-spacing ring is equipped with first clearance cavity of intercommunication (9) with the first through-hole of right part in first direction chamber (13), first clearance cavity (9) pass through first through-hole with first direction chamber (13) body middle right part intercommunication, second valve barrel (24) middle right part equal-spacing ring is equipped with intercommunication second clearance cavity (27) with second direction chamber (31) middle right part second through-hole (32), second clearance cavity (27) pass through second through-hole (32) with second direction chamber (31) middle right part intercommunication.

6. A bi-unidirectional water filling valve as defined in claim 4 wherein: first valve barrel (6) left part equidistant ring be equipped with communicate first clearance cavity (9) with third through-hole (15) of first direction chamber (13) left part, first clearance cavity (9) pass through third through-hole (15) with first direction chamber (13) body left part intercommunication, second valve barrel (24) left part equidistant ring be equipped with communicate second clearance cavity (27) with fourth through-hole (33) of second direction chamber (31) left part, second clearance cavity (27) pass through fourth through-hole (33) with second direction chamber (31) left part intercommunication.

7. A dual one-way fill valve as claimed in any one of claims 2 to 6, wherein: first disk seat (5) right-hand member outer wall with first valve barrel (6) left end inner wall is equipped with the first screw thread that corresponds each other respectively, first valve barrel (6) left end inner wall passes through first screw thread cover is established on first disk seat (5) right-hand member outer wall, second disk seat (23) right-hand member outer wall with second valve barrel (24) left end inner wall is equipped with the second screw thread that corresponds each other respectively, second valve barrel (24) left end inner wall passes through the second screw thread cover is established on second disk seat (23) right-hand member outer wall.

8. A dual one-way fill valve as claimed in any one of claims 2 to 6, wherein: the left end part of the valve body (2) is detachably fixed with a first flange connecting pipe (16), the first flange connecting pipe (16) is detachably fixed with the left end part of the valve body (2) through a first circular flange (17), the right side of the first flange connecting pipe (16) is hermetically abutted against the left side of the first end cover (3), the first flange connecting pipe (16) is communicated with a water inlet, the inside of the first end cover (3) is communicated with the first flange connecting pipe (16), the inside of the first end cover (3) is communicated with the water inlet through the first flange connecting pipe (16), the right end part of the valve body (2) is detachably fixed with a second flange connecting pipe (34), the second flange connecting pipe (34) is detachably fixed with the right end part of the valve body (2) through a second circular flange (35), the left side of the second flange connecting pipe (34) is hermetically abutted against the right side of the second end cover (4), the second flanged connecting pipe (34) is communicated with the water outlet, the inside of the second end cover (4) is communicated with the second flanged connecting pipe (34), and the inside of the second end cover (4) is communicated with the water outlet through the second flanged connecting pipe (34).

9. A bi-unidirectional water fill valve as defined in claim 8 wherein: the right side wall of the first flanged pipe (16) is provided with a first accommodating groove for accommodating a first sealing ring (40), the right side wall of the first flanged pipe (16) is in sealing and abutting contact with the left side wall of the first end cover (3) through the first sealing ring (40), the outer wall of the right end of the first end cover (3) is provided with a second accommodating groove for accommodating a second sealing ring (41), the first end cover (3) is fixed on the inner wall of the left end of the valve body (2) in a sealing and detachable manner through the second sealing ring (41), a third sealing ring (42) is arranged between the outer wall of the first valve seat (5) and the inner wall of the right side of the first end cover (3), the first valve seat (5) is fixed on the inner wall of the right side of the first end cover (3) in a sealing manner through the third sealing ring (42), a fourth sealing ring (43) is arranged between the outer wall of the second valve seat (23) and the inner wall of the right end, second disk seat (23) are fixed through fourth sealing washer (43) is sealed detachable on the inside wall of right-hand member in valve body (2), second end cover (4) left end outer wall is equipped with the third holding tank that holds fifth sealing washer (44), second end cover (4) are fixed through fifth sealing washer (44) are sealed on the inside wall of valve body (2) right-hand member, second flange takeover (34) left side is equipped with the fourth holding tank that holds sixth sealing washer (45), second flange takeover (34) left side wall through sixth sealing washer (45) with second end cover (4) right side wall is sealed to offset.