CN206280541U - A kind of automatic fluid change-over valve of pressure difference control - Google Patents
A kind of automatic fluid change-over valve of pressure difference control Download PDFInfo
- Publication number
- CN206280541U CN206280541U CN201621429820.3U CN201621429820U CN206280541U CN 206280541 U CN206280541 U CN 206280541U CN 201621429820 U CN201621429820 U CN 201621429820U CN 206280541 U CN206280541 U CN 206280541U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve element
- face
- core tube
- fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a kind of automatic fluid change-over valve of pressure difference control, including valve body and valve inner core assembly, core assembly includes valve core tube；O-ring and sealing pipe screw thread are respectively equipped with the outer wall at valve core tube or so two ends, also including the valve element in cone shape, valve element is located in the conical funnel shape mouth of pipe at valve core tube two ends, and a cavity is equipped with valve element；Annulus is provided with the large end face side of valve element, annulus wherein end face is fixedly connected with the small end face of the coniform little spring in extended state, big end is fitted snugly over the small end of floating plug；Spring mounting ring is fixed with the intermediate inner wall of valve core tube, the both ends of the surface of spring mounting ring are fixedly connected with big spring respectively, and big spring is enclosed within the valve element.The valve can determine that the scope of pressure difference value, and cut-off closure, flexible commutation circulation, the equilibrium pressure of fluid circuit are realized under pressure difference value.
Description
Technical field
The utility model belongs to fluid control technology field, more particularly to one kind automatically adjusts stream under certain pressure difference
The valve in dynamic direction.
Background technology
Valve be it is a kind of be widely used in fluid, the valve of gas flow of fluid, common are stop valve, unidirectional
Valve etc., wherein, check valve is a kind of control element of control fluid flow direction, realizes the one-way flow control of fluid, is used for
Fluid reflux is prevented, and stop valve is mainly used in blocking the valve of fluids within pipes break-make.In actual applications, it is necessary to certain
Under the conditions of block the flow channel of fluid, stop the flowing conveying of fluid, and need to realize the list of fluid under certain pressure difference again
To flowing, such as require voltage stabilizing state of the whole system in the range of certain pressure intensity, it is necessary to according to interior in fluid piping system
Outer pressure difference injects or releases fluid, with up to balance.
Utility model content
The purpose of this utility model is to solve above-mentioned technical problem, there is provided a kind of automatic fluid reversal valve of pressure difference control
Door, the valve can determine that the scope of pressure difference value, and cut-off closure, the flexible reversed flow of fluid circuit are realized under pressure difference value
Logical, equilibrium pressure.
The technical solution of the utility model is as follows：
A kind of automatic fluid change-over valve of pressure difference control, including a valve body for the tubular of both ends open, the valve body
Two openends be connected with ring flange for connecting pipe respectively；
Also include the core assembly positioned at valve inner, the core assembly includes valve core tube, and the valve core tube is one section
Two ends are the pipe of the conical funnel shape mouth of pipe, and the conical funnel shape mouth of pipe large end face towards valve core tube outside；Described
A circle sealed groove is respectively equipped with the outer wall at valve core tube or so two ends, is closely embedded with the sealed groove described in exposing
The O-ring of valve element pipe outer wall, is additionally provided with one section of sealing pipe screw thread on the right hand valve core tube wall of the O-ring of right-hand member, described
Sealing pipe screw thread is screwed up with the sealing pipe screw thread on valve core tube right-hand member inwall, and the O-ring is tight with the inwall of valve core tube
Contact；
The core assembly also includes that, in the valve element of cone shape, valve element is located in the conical funnel shape mouth of pipe, each
The large end face of valve element is consistent with the large end face direction of the conical funnel shape mouth of pipe at place, and a sky is equipped with each valve element
Chamber；The cavity is made up of two identical conicle cavitys and the large end face of two conicle cavitys connects, small end face difference
The large and small end face of insertion valve element, leads to so as to form a small fluid in the two broad in the middle for crossing valve element axis in valve core inside
Road；Be provided with the annulus coaxial with valve element in the large end face side of valve element, the arch brace is fixed on support, the support by
Four L-shaped supporting plates are constituted, and described supporting plate one end is connected with the annulus outer wall, and the other end is fixed on the big end of valve element
On face；The annulus wherein end face is fixedly connected with the small end face of the coniform little spring in extended state, the small bullet
The big end of spring is fitted snugly on the small end outer cone wall in coniform floating plug, so as to pull the outer of the floating plug
Circular conical surface is brought into close contact with the internal conical surface of the fluid passage；The big of the floating plug rectifies the limit formed to three pillars
Position support, the pillar is fixed on the conicle cavity inner wall of the close valve element small end face side of the fluid passage；When
When fluid is flowed into from the annulus side by the fluid passage, the floating plug is set to be sprung up towards the small end face of valve element and pushed up
On the limiting bracket, and fluid passage is not blocked now, it is described floating when fluid stops being flowed into from the annulus side
Dynamic plug is retracted and be embedded in the annulus and block the fluid passage by the little spring；
It is fixed with the intermediate inner wall of the valve core tube in circular spring mounting ring, the two of the spring mounting ring
The large end face of the end face big spring in extended state coniform with two respectively is fixedly connected, and the small end of the big spring is tight
Be enclosed within the small end outer cone wall of the valve element, so as to pull the outer conical surface of valve element to be close to the conical funnel shape mouth of pipe
Female cone wall；Under the fluid pressure difference effect at the valve core tube two ends, the fluid passage of wherein one end is opened and another
When the fluid passage of one end is blocked, the valve element that fluid passage is blocked one end makes the outer conical surface of valve element under the impact of fluid
Female cone wall with the conical funnel shape mouth of pipe is separated.
Further, the two ends inwall of the valve body is embedded with screen pack.
Further, the left side of the valve core tube is provided with two sockets symmetrical above and below.
Further, the inwall of the spring mounting ring is semicircle arcuation.
The beneficial effects of the utility model：The utility model is connected in fluid piping system, fluid starts to wash stream open
Enter the floating plug at end, fluid is entered into valve core tube, and progressively the floating plug of outflow end is rushed to by the fluid at the end lead to
Road is blocked, and internal pressure continues to increase, and then opens the top of valve element 4 where the floating plug, fluid is flowed out from the end, this
When, pipe-line system connection, when enough pipeline (or fluid reservoir) pressure for causing the end of fluid for flowing into is increased to and stream
Entering end drives pressure (the work output of usually pump can be generated pressure) at a stalemate usually (at fluid source), or its pressure differential
When within the scope of a certain, this change-over valve is in stopping state to value；When the pipeline for being flowed into end has output, pressure subtracts
Small then fluid continues to be flowed along former direction；And when the former pressure differential for being flowed into end exceeds a certain scope higher than the pressure differential for flowing into end
When, then the backflow of fluid is realized, can play and certain safeguard protection effect is played to the working equipment for being flowed into end.Thus may be used
See, the utility model can determine the scope of pressure difference value by each spring, and realize cut-off close, two-way circulate,
Equilibrium pressure etc. is acted on.
Brief description of the drawings
Fig. 1 is this utility structure schematic diagram.
Fig. 2 is the zoomed-in view at I in Fig. 1.
Structural representation when Fig. 3 is the floating plug block fluid flow passage at I in Fig. 1.
Fig. 4 is the utility model right view.
Fig. 5 is zoomed-in view at II in Fig. 4.
Fig. 6 is zoomed-in view at the III in Fig. 1.
A kind of frock schematic diagram that Fig. 7 is used by valve core tube that mounting end is provided with socket.
Fig. 8 is another frock schematic diagram for installing valve core tube.
Specific embodiment
Implementation method of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages of the present utility model and effect easily.
The utility model is described in further detail with reference to the accompanying drawings and examples：
As shown in Fig. 1-5, a kind of automatic fluid change-over valve of pressure difference control, including tubular for both ends open
Valve body 1, two openends of the valve body 1 are connected with the ring flange 101 for connecting pipe respectively.
Also include the core assembly inside valve body 1, the core assembly includes valve core tube 2, and the valve core tube 2 is one
Section two ends are the pipe of the conical funnel shape mouth of pipe 201, and the conical funnel shape mouth of pipe 201 large end face towards outside valve core tube 2
Side；A circle sealed groove is respectively equipped with the outer wall at the two ends of the valve core tube 2 or so, it is closely embedding in the sealed groove
Have the O-ring 3 for exposing the outer wall of the valve core tube 2, be additionally provided with the outer wall of right side valve core tube 2 of the O-ring 3 of right-hand member one section it is close
Tube sealing screw thread 202, the sealing pipe screw thread 202 is screwed up with the sealing pipe screw thread on the right-hand member inwall of valve core tube 2, and described O-shaped
Circle 3 is in close contact with the inwall of valve core tube 2.
The core assembly also includes that, in the valve element 4 of cone shape, valve element 4 is located in the conical funnel shape mouth of pipe 201,
The large end face of each valve element 4 is consistent with the large end face direction of the conical funnel shape mouth of pipe 201 at place, is all provided with each valve element 4
There is a cavity；The cavity is made up of two identical conicle cavitys and the large end face of two conicle cavitys connects, small
The large and small end face of end face difference insertion valve element 4, so as to be internally formed the two broad in the middle for crossing the axis of valve element 4 in valve element 4
Small fluid passage 401；The annulus 5 coaxial with valve element 4 is provided with the large end face side of valve element 4, the support of the annulus 5 is fixed on
On support 6, the support 6 is made up of four L-shaped supporting plates 601, the one end of the supporting plate 601 and the outer wall of the annulus 5
It is connected, the other end is fixed on the large end face of valve element 4；The wherein end face of the annulus 5 is with coniform in the small of extended state
The small end face of spring 7 is fixedly connected, and the big end of the little spring 7 is fitted snugly over outside the small end in coniform floating plug 8
In conical walls, so as to pull the outer conical surface of the floating plug 8 and the internal conical surface of the fluid passage 401 to be brought into close contact；
The big of the floating plug 8 rectifies the limiting bracket 9 formed to three pillars, and the pillar is fixed on the fluid passage 401
The small end face side of close valve element 4 the conicle cavity inner wall；When fluid is logical by the fluid from the side of the annulus 5
When road 401 is flowed into, the floating plug 8 is set to be sprung up towards the small end face of valve element 4 and withstood on the limiting bracket 9, and now not
Fluid passage 401 is blocked, when fluid stops being flowed into from the side of the annulus 5, the floating plug 8 is by the little spring 7
Retract and be embedded in the annulus 5 and block the fluid passage 401.
It is fixed with the intermediate inner wall of the valve core tube 2 in circular spring mounting ring 10, the spring mounting ring
The large end face of the 10 both ends of the surface big spring 11 in extended state coniform with two respectively is fixedly connected, the big spring 11
Small end be fitted snugly on the small end outer cone wall of the valve element 4, so as to pull the outer conical surface of valve element 4 to be close to the circular cone
The female cone wall of funnel-shaped nozzle 201；Under the fluid pressure difference effect at the two ends of the valve core tube 2, the wherein stream of one end
Body passage 401 is opened and the fluid passage 401 of other end when being blocked, and fluid passage 401 is blocked the valve element 4 of one end in stream
The outer conical surface of valve element 4 is set to be separated with the female cone wall of the conical funnel shape mouth of pipe 201 under the impact of body.
Further, as shown in figure 1, the two ends inwall of the valve body 1 is embedded with screen pack 12, the stuck valve element 4 of dregs is prevented
Or floating plug 8.
Further, as shown in fig. 6, the left side of the valve core tube 2 is provided with two sockets 203 symmetrical above and below, with
Just it is used to that valve core tube 2 be installed, spanner frock rotational valve core pipe 2 and valve as shown in Figure 7 just can be used after two sockets 203 are set
The thread connection of body 1 coordinates.Certainly, the utility model can also smoothly install valve core tube 2 in the case where socket 203 is not provided with,
For example with a kind of frock for being provided with circular conical surface as shown in Figure 8, the frock is withstood on into the two ends of valve core tube 2, valve core tube 2 is consolidated
It is fixed, valve body 1 is then turned, valve body 1 can make hexagonal configuration in middle part outer wall if necessary.
Further, the inwall of the spring mounting ring 10 is semicircle arcuation, for reducing the fluid punching inside valve core tube 2
Hit vibration.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited
Type.Any person skilled in the art can all be carried out under without prejudice to spirit and scope of the present utility model to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model
All equivalent modifications completed under god and technological thought or change, should be covered by claim of the present utility model.
Claims (4)
1. the automatic fluid change-over valve that a kind of pressure difference is controlled, it is characterised in that：Including a valve body for the tubular of both ends open
(1), two openends of the valve body (1) are connected with the ring flange (101) for connecting pipe respectively；
Also include that, positioned at the internal core assembly of valve body (1), the core assembly includes valve core tube (2), and the valve core tube (2) is
One section of two ends is the pipe of the conical funnel shape mouth of pipe (201), and the conical funnel shape mouth of pipe (201) large end face towards valve element
Pipe (2) outside；A circle sealed groove is respectively equipped with the outer wall at the valve core tube (2) left and right two ends, in the sealed groove
The O-ring (3) for exposing the valve core tube (2) outer wall is inside closely embedded with, positioned at the right side valve core tube (2) of the O-ring (3) of right-hand member
Be additionally provided with outer wall one section sealing pipe screw thread (202), it is described sealing pipe screw thread (202) with valve core tube (2) right-hand member inwall on it is close
Tube sealing screw thread is screwed up, and the O-ring (3) is in close contact with the inwall of valve core tube (2)；
The core assembly also includes that valve element (4) is positioned at the conical funnel shape mouth of pipe (201) in the valve element (4) of cone shape
Interior, the large end face of each valve element (4) is consistent with the large end face direction of the conical funnel shape mouth of pipe (201) at place, in each valve element
(4) cavity is equipped with；The cavity is made up of and two big ends of conicle cavity two identical conicle cavitys
Face connects, the large and small end face of small end face difference insertion valve element (4), is crossed in valve element (4) so as to be internally formed one in valve element (4)
The small fluid passage (401) in two broad in the middle of axis；The circle coaxial with valve element (4) is provided with the large end face side of valve element (4)
Ring (5), annulus (5) support is fixed on support (6), and the support (6) is made up of four L-shaped supporting plates (601),
Described supporting plate (601) one end is connected with the annulus (5) outer wall, and the other end is fixed on the large end face of valve element (4)；The circle
Ring (5) wherein end face is fixedly connected with the small end face of the coniform little spring (7) in extended state, the little spring (7)
Big end be fitted snugly on the small end outer cone wall in coniform floating plug (8), so as to pull the floating plug (8)
Outer conical surface be brought into close contact with the internal conical surface of the fluid passage (401)；The big of the floating plug (8) is rectified to three
The limiting bracket (9) that pillar is formed, the pillar is fixed on close valve element (4) small end face side of the fluid passage (401)
The conicle cavity inner wall；When fluid is flowed into from the annulus (5) side by the fluid passage (401), make institute
Floating plug (8) is stated to be sprung up towards the small end face of valve element (4) and withstood on the limiting bracket (9), and now not by fluid passage
(401) block, when fluid stops being flowed into from the annulus (5) side, the floating plug (8) is drawn by the little spring (7)
Return and be embedded in the annulus (5) and block the fluid passage (401)；
It is fixed with the intermediate inner wall of the valve core tube (2) in circular spring mounting ring (10), the spring mounting ring
(10) large end face of the both ends of the surface big spring (11) in extended state coniform with two respectively is fixedly connected, the big bullet
The small end of spring (11) is fitted snugly on the small end outer cone wall of the valve element (4), so as to pull the outer conical surface of valve element (4) tight
Paste the female cone wall of the conical funnel shape mouth of pipe (201)；Under the fluid pressure difference effect at the valve core tube (2) two ends, its
The fluid passage (401) of middle one end is opened and the fluid passage (401) of the other end is when being blocked, fluid passage (401)
Blocked the valve element (4) of one end makes the outer conical surface of valve element (4) and the conical funnel shape mouth of pipe (201) under the impact of fluid
Female cone wall be separated.
2. the automatic fluid change-over valve that pressure difference according to claim 1 is controlled, it is characterised in that：The valve body (1)
Two ends inwall is embedded with screen pack (12).
3. the automatic fluid change-over valve that pressure difference according to claim 1 is controlled, it is characterised in that：The valve core tube (2)
Left side be provided with two sockets (203) symmetrical above and below.
4. the automatic fluid change-over valve that pressure difference according to claim 1 is controlled, it is characterised in that：The spring mounting ring
(10) inwall is semicircle arcuation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621429820.3U CN206280541U (en) | 2016-12-25 | 2016-12-25 | A kind of automatic fluid change-over valve of pressure difference control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621429820.3U CN206280541U (en) | 2016-12-25 | 2016-12-25 | A kind of automatic fluid change-over valve of pressure difference control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206280541U true CN206280541U (en) | 2017-06-27 |
Family
ID=59071770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621429820.3U Withdrawn - After Issue CN206280541U (en) | 2016-12-25 | 2016-12-25 | A kind of automatic fluid change-over valve of pressure difference control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206280541U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499842A (en) * | 2016-12-25 | 2017-03-15 | 重庆德运模具制造有限公司 | The automatic fluid change-over valve of pressure reduction control |
| CN109578644A (en) * | 2017-09-29 | 2019-04-05 | 北京机电工程研究所 | A kind of pressure reducing valve |
-
2016
- 2016-12-25 CN CN201621429820.3U patent/CN206280541U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499842A (en) * | 2016-12-25 | 2017-03-15 | 重庆德运模具制造有限公司 | The automatic fluid change-over valve of pressure reduction control |
| CN109578644A (en) * | 2017-09-29 | 2019-04-05 | 北京机电工程研究所 | A kind of pressure reducing valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205715892U (en) | The hydraulic control valve body of ne-leakage | |
| CN206280541U (en) | A kind of automatic fluid change-over valve of pressure difference control | |
| CN110206946A (en) | A kind of conduit coupling | |
| CN107917253A (en) | A kind of gas check valve and gas-fired equipment | |
| CN206816871U (en) | It is a kind of to pass through the valve of pressure change liquid outlet channel | |
| CN106499842B (en) | The automatic fluid change-over valve of pressure difference control | |
| CN205639720U (en) | Multi -functional check valve | |
| CN210344651U (en) | Tee pipe fitting with extension connecting end | |
| CN206846129U (en) | A kind of spout device with high leakproofness | |
| CN110094557A (en) | A kind of adjustable valve | |
| CN204717185U (en) | A kind of disposable external suction connecting tube | |
| CN205350657U (en) | Telescopic straight joint | |
| CN207514423U (en) | A kind of flange-connection stainless steel metal flexible pipe with blast resistance construction | |
| CN110173624B (en) | Gas bidirectional check control valve | |
| CN210831428U (en) | Gas bidirectional non-return control valve | |
| CN204208188U (en) | The mounting structure of flow sub | |
| CN208364887U (en) | A kind of constant flow filtering valve group | |
| CN209557837U (en) | A kind of drainage system pipe that air-tightness is good | |
| CN205388205U (en) | Pipeline | |
| CN206468584U (en) | A kind of water pump slide system pipeline structure | |
| CN204829033U (en) | Take sealing pipe fitting of bull crossover sub | |
| CN205260928U (en) | Through type high leakproofness check valve | |
| CN205244505U (en) | Check valve | |
| CN205715856U (en) | Vacuum-proof pressure release valve and water heater | |
| CN105257870B (en) | A kind of through type high leakproofness check-valves |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170627 Effective date of abandoning: 20180911 |
|
| AV01 | Patent right actively abandoned |