CN209654676U - A kind of sheet type check valve - Google Patents
A kind of sheet type check valve Download PDFInfo
- Publication number
- CN209654676U CN209654676U CN201920297966.4U CN201920297966U CN209654676U CN 209654676 U CN209654676 U CN 209654676U CN 201920297966 U CN201920297966 U CN 201920297966U CN 209654676 U CN209654676 U CN 209654676U
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- sheet
- valve body
- check valve
- valve
- water inlet
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Abstract
The utility model discloses a kind of sheet type check valves, including valve body of intaking, valve seat and water outlet valve body, spacing collar is installed in the valve seat, check valve sheet is fixed between two spacing collars, outlet pass is offered in the check valve sheet, the side of outlet pass is provided with close out sheet, it is connect at the lower end position of close out sheet with check valve sheet, the side that the close out sheet is opened is provided with block, a side end face of valve seat is arranged in the water inlet valve body, and water inlet valve body is connected to valve seat, the side of water inlet valve body is provided with water inlet, valve seat is arranged in away from a side end face of water inlet valve body in the water outlet valve body, and water outlet valve body is connected to valve seat, the side of water outlet valve body is provided with water outlet.The utility model have volume and weight is smaller, reduces cost, meet material, thickness and be punched shape requirement, under the premise of realizing water route one-way conduction, influenced caused by tooth flusher complete machine irrigation pressure it is smaller and within an acceptable range the advantages of.
Description
Technical field
Originally practical to be newly related to check valve technical field, specially a kind of sheet type check valve.
Background technique
Since tooth flusher is a kind of hand-held electronic product, there is more harsh requirement to volume and weight, therefore
The volume of tooth flusher inner body should small as far as possible, weight should be light as far as possible, to improve profit level, tooth flusher inner body is answered
As far as possible convenient for manufacture.
Check valve type is divided into silica gel+spring check valve, valve check valve and sheet type check valve at present, these types
Check valve in contrast, sheet type check valve have the advantages that small in size, thickness is thin, it is light-weight, convenient for manufacture, cost is relatively low,
Have the tendency that mentioning and changes other the two.But its disadvantage is also more obvious, material, thickness and punching these three factors of shape are to unidirectional
The performance of valve block has important influence, wherein the influence maximum of punching shape is but difficult to control, and the performance of check valve sheet will
Directly affect the pressure of tooth flusher water spray, therefore, the sheet type check valve sheet of better performances in order to obtain, it is necessary to obtain above-mentioned three
Preferred plan under a factor reciprocation.
Utility model content
The purpose of this utility model is to provide a kind of sheet type check valve, have that volume and weight is smaller, reduces cost,
Meet material, thickness and the requirement for being punched shape, under the premise of realizing water route one-way conduction, to tooth flusher complete machine irrigation pressure
Caused by influence it is smaller and within an acceptable range the advantages of, solve material, thickness and punching these three factors of shape to unidirectional
The performance of valve block has important influence, wherein the shortcomings that influence maximum of punching shape is but difficult to control.
To achieve the above object, the utility model provides the following technical solutions: a kind of sheet type check valve, including inlet valve
Body, valve seat and water outlet valve body, are equipped with spacing collar in the valve seat, check valve sheet, the list are fixed between two spacing collars
Outlet pass is offered on valve block, the side of outlet pass is provided with close out sheet, connects at the lower end position of close out sheet with check valve sheet
It connects, the side that the close out sheet is opened is provided with block, and a side end face of valve seat is arranged in the water inlet valve body, and valve body of intaking
It is connected to valve seat, the side for valve body of intaking is provided with water inlet, and valve seat is arranged in away from the one of water inlet valve body in the water outlet valve body
Side end face, and be discharged valve body and be connected to valve seat, the side for being discharged valve body is provided with water outlet.
Preferably, the material of the check valve sheet is the strong polytetrafluoroethylene (PTFE) of anti-fatigue ability.
Preferably, the check valve sheet and close out sheet are overall structure.
Preferably, the thickness of the check valve sheet and close out sheet is 0.12 millimeter.
Preferably, there are two the spacing collar is set altogether, two spacing collars are symmetric.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, the utility model is by setting check valve sheet, and check valve sheet material is polytetrafluoroethylene (PTFE), material it is antifatigue strong
Degree and frequency response characteristic are higher, and restoring force is stronger, and pass through test of many times, and check valve sheet thickness is set as 0.12 millimeter,
It is punched shape as shown, tooth flusher is suitble to use, and entirety is whole to tooth flusher under the premise of realizing water route one-way conduction
It is influenced caused by machine irrigation pressure smaller and within an acceptable range.
2, the utility model is by setting block, in sheet type check valve in use, block can block close out sheet, In
The deformation that close out sheet is excessive because of the relationship of hydraulic pressure is prevented in the case where one-way conduction, close out sheet can be made to keep its restoring force, is prevented
Only overflexing declines its restoring force, has the function of limiting close out sheet.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the utility model；
Fig. 2 is the check valve sheet structural schematic diagram of the utility model；
Fig. 3 is the spacing collar structural schematic diagram of the utility model.
In figure: 1, valve body of intaking；2, valve seat；3, block；4, close out sheet；5, water outlet；6, it is discharged valve body；7, outlet pass；
8, spacing collar；9, water inlet；10, check valve sheet.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside" " front end ", " after
The orientation or positional relationship of the instructions such as end ", " both ends ", " one end ", " other end " is that orientation based on the figure or position are closed
System, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition,
Term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " being provided with ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, be also possible to detachably connect
It connects, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediate matchmaker can also be passed through
Jie is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
It please refers to Fig.1 to Fig.3, a kind of embodiment provided by the utility model: a kind of sheet type check valve, including inlet valve
Body 1, valve seat 2 and water outlet valve body 6, are equipped with spacing collar 8 in valve seat 2, and there are two spacing collar 8 is set altogether, two spacing collars 8 are in symmetrical
It is distributed, check valve sheet 10 is fixed between two spacing collars 8,10 radius of check valve sheet is 5.20mm, is opened up in check valve sheet 10
There is an outlet pass 7,7 radius of outlet pass is 2.40mm, and the side of outlet pass 7 is provided with close out sheet 4, at the lower end position of close out sheet 4
It is connect with check valve sheet 10,4 radius of close out sheet is 3.70mm, and check valve sheet 10 and close out sheet 4 are overall structure, check valve sheet 10
Material be the strong polytetrafluoroethylene (PTFE) of anti-fatigue ability, the thickness of check valve sheet 10 and close out sheet 4 is 0.12 millimeter.
Since sheet type check valve directly contacts in water route with water, it is therefore necessary to by safe and non-toxic material production
At.When work, the folding frequency of check valve sheet 10 is up to 25Hz, and life-cycle opening/closing frequency is at million times or more, therefore to material
Fatigue resistance and frequency response characteristic have higher requirement.Meanwhile check valve sheet 10 resists the reply of deformation by itself
It forces tight water channel and is closed water route by smooth surface, therefore have to the intensity, toughness and surface roughness of material
High requirement.It is selected to use polytetrafluoroethylene (PTFE) (Teflon) sheet material as check valve sheet 10 after testing multiple material
Material.
For thickness, although excessively thin sheet material can improve frequency response characteristic, reduce water route energy loss, but meeting
The recoverability of valve block is reduced, the probability that plastic deformation occurs is promoted；Although blocked up sheet material is then on the contrary, returning for valve block can be improved
Multiple power, enhances airtight performance, but can reduce frequency response characteristic, increases the energy loss in water route.Therefore, tested it is a variety of
After thickness, the sheet thickness of check valve sheet 10 is chosen to be 0.12mm.
In punching vpg connection, different punching shapes will assign check valve sheet 10 different performances.Valve block shaking part
It is excessively thin to reduce valve block recovery capacity, influence valve block sealing effect；Valve block shaking part is blocked up, can make valve block overall stiffness mistake
Greatly, frequency response characteristic is influenced, water route energy loss is increased, reduces complete machine discharge pressure.After test of many times, by check valve
The punching shape of piece 10 is determined as pattern shown in attached drawing 2
By the way that check valve sheet 10 is arranged, 10 material of check valve sheet is polytetrafluoroethylene (PTFE), the fatigue resistance and frequency of material
Response characteristic is higher, and restoring force is stronger, and passes through test of many times, and 10 thickness of check valve sheet is set as 0.12 millimeter, punching
Shape as shown, tooth flusher is suitble to use, spray water to tooth flusher complete machine under the premise of realizing water route one-way conduction by entirety
It is influenced caused by pressure smaller and within an acceptable range.
The side that close out sheet 4 is opened is provided with block 3, by the way that block 3 is arranged, in sheet type check valve in use, gear
Block 3 can block close out sheet 4, and the deformation that close out sheet 4 is excessive because of the relationship of hydraulic pressure is prevented in the case where one-way conduction, can be made
Close out sheet 4 keeps its restoring force, prevents overflexing from decline its restoring force, has the function of limiting close out sheet 4.
A side end face of valve seat 2 is arranged in water inlet valve body 1, and valve body 1 of intaking is connected to valve seat 2, the side for valve body 1 of intaking
It is provided with water inlet 9, valve seat 2 is arranged in away from a side end face of water inlet valve body 1 in water outlet valve body 6, and is discharged valve body 6 and valve seat 2
The side of connection, water outlet valve body 6 is provided with water outlet 5.
Working principle: when utility model works, water is entered by the water inlet 9 of water inlet valve body 1, then in the work of hydraulic pressure
Under, check valve sheet 10 can be impacted, the bending under the impact of hydraulic pressure of close out sheet 4 deforms, and keep outlet pass 7 in the open state,
(in the case where 4 bending of close out sheet deformation, block 3 can block close out sheet 4, and close out sheet 4 is prevented in the case where one-way conduction
Because of the deformation that the relationship of hydraulic pressure is excessive, close out sheet 4 can be made to keep its restoring force, prevent overflexing from decline its restoring force),
Water circulates from outlet pass 7 and is then discharged from the water outlet 5 of water outlet valve body 6；In the case that water does not circulate, close out sheet 4 can pass through
Outlet pass 7 is closed by the restoring force of itself, guarantees that it is one-way flow.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (5)
1. a kind of sheet type check valve, including water inlet valve body (1), valve seat (2) and water outlet valve body (6), it is characterised in that: the valve
It is equipped with spacing collar (8), is fixed with check valve sheet (10) between two spacing collars (8), on the check valve sheet (10) in seat (2)
It offers outlet pass (7), the side of outlet pass (7) is provided with close out sheet (4), at the lower end position of close out sheet (4) and check valve
Piece (10) connection, the side that the close out sheet (4) is opened are provided with block (3), and the water inlet valve body (1) is arranged in valve seat (2)
A side end face, and intake valve body (1) be connected to valve seat (2), intake valve body (1) side be provided with water inlet (9), it is described out
Water valve body (6) setting deviates from a side end face of water inlet valve body (1) in valve seat (2), and is discharged valve body (6) and is connected to valve seat (2), out
The side of water valve body (6) is provided with water outlet (5).
2. a kind of sheet type check valve according to claim 1, it is characterised in that: the material of the check valve sheet (10) is
The strong polytetrafluoroethylene (PTFE) of anti-fatigue ability.
3. a kind of sheet type check valve according to claim 1, it is characterised in that: the check valve sheet (10) and close out sheet
It (4) is overall structure.
4. a kind of sheet type check valve according to claim 1, it is characterised in that: the check valve sheet (10) and close out sheet
(4) thickness is 0.12 millimeter.
5. a kind of sheet type check valve according to claim 1, it is characterised in that: there are two the spacing collar (8) sets altogether,
Two spacing collars (8) are symmetric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920297966.4U CN209654676U (en) | 2019-03-08 | 2019-03-08 | A kind of sheet type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920297966.4U CN209654676U (en) | 2019-03-08 | 2019-03-08 | A kind of sheet type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209654676U true CN209654676U (en) | 2019-11-19 |
Family
ID=68526452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920297966.4U Active CN209654676U (en) | 2019-03-08 | 2019-03-08 | A kind of sheet type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209654676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113693759A (en) * | 2020-10-19 | 2021-11-26 | 深圳市富邦新科技有限公司 | Multifunctional tooth washing device |
-
2019
- 2019-03-08 CN CN201920297966.4U patent/CN209654676U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113693759A (en) * | 2020-10-19 | 2021-11-26 | 深圳市富邦新科技有限公司 | Multifunctional tooth washing device |
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