CN200989480Y - Bottom valve - Google Patents
Bottom valve Download PDFInfo
- Publication number
- CN200989480Y CN200989480Y CNU2006200627485U CN200620062748U CN200989480Y CN 200989480 Y CN200989480 Y CN 200989480Y CN U2006200627485 U CNU2006200627485 U CN U2006200627485U CN 200620062748 U CN200620062748 U CN 200620062748U CN 200989480 Y CN200989480 Y CN 200989480Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- filter screen
- spool
- adpting flange
- 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.)
- Expired - Lifetime
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- Taps Or Cocks (AREA)
Abstract
The utility model provides a bottom valve, containing a valve body, a valve core that is arranged in the valve body, a spring that is connected with the valve core and can control the valve core to block or break away from a water inlet of the valve body and whose outside surface is provided with a plastic coat, and a filter screen that is arranged at the water inlet of the valve body. The utility model overcomes the effect of the eroded spring on the performance of the check valve because the spring has a plastic coat; the helicitic texture of the valve body makes the valve body convenient to connect with related accessories and to change accessories; meanwhile, a seal ring is positioned at the joint, thereby increasing the sealing performance of the check valve.
Description
Technical field
The utility model belongs to the bottom valve production technical field, particularly relates to a kind of durable etch-proof bottom valve.
Technical background
Existing bottom valve generally includes two kinds of ball formula and springs, the valve body of ball formula bottom valve must be arranged to taper shape, and the ball of diameter greater than the awl mouth is set in valve body, and ball breaks away from the awl mouth under the impact at current in the water inlet process of bottom valve, all the other then block the awl mouth, prevent to flow backwards.Its shortcoming is that valve body must be arranged to cone, under the situation of the identical water yield of flowing through, and the space that the valve body waste is too much.
And the spring bottom valve, block or break away from the water intake of valve body by the spool that is connected with spring, in the water inlet process, spool is under the impact of current, drive length of spring compressed, spool breaks away from water intake, after the water inlet process finishes, under the reset response power of spring, spool is blocked water intake, prevents to flow backwards, its valve body can be arranged to the cylindrical shape of certain diameter according to the size of the water yield, space availability ratio is higher, yet is easy to be corroded behind spring peracid, alkali or the use certain hour, has influenced the using effect of bottom valve.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of space availability ratio high and durable bottom valve.
In order to realize the foregoing invention purpose, the technological scheme of employing is as follows:
A kind of bottom valve, comprise valve body, be arranged at the spool of valve inner, be connected with spool and the may command spool block or break away from the valve inleting water mouth spring, be arranged at the filter screen at valve inleting water mouth place, described spring outer surface is provided with plastic coating.
The utility model is by being provided with plastic coating at the spring outer surface, when having avoided spring peracid, alkali or soak suffered corrosion for a long time.
In the technique scheme, described valve body is a cylindrical shape, and the outer surface at valve body two ends is provided with screw thread, and the valve body two ends are provided with the corresponding nut that has ring washer.Connect by the nut that has back-up ring, make the utility model be convenient to related accessory is set, as filter screen and bonding bellmouth etc. in two ends of valve body.
The contact jaw of described filter screen and valve inleting water mouth is provided with by the adpting flange of the back-up ring of nut and the clamping of valve inleting water mouth end face.Filter screen makes by the PVC material, in the end that is connected with the valve inleting water mouth adpting flange is set, and after adpting flange touch the water intake end face, by screwing of nut, just makes filter screen and valve body link together.
The water outlet of described valve body is provided with bellmouth.Can accept with other related accessory by this bellmouth.
The contact jaw of described bellmouth and valve body water outlet also is provided with by the adpting flange of the back-up ring of nut and the clamping of valve body water outlet end face.
Between the water intake end face of described valve body and the adpting flange of filter screen, be provided with seal ring between the adpting flange of valve body water outlet end face and bellmouth.Described seal ring can adopt the O RunddichtringO, has increased the sealability of valve inleting water mouth and water outlet and filter screen and bellmouth.
Described spool also is provided with the seal ring that can contact with the adpting flange of filter screen.The structure of spool comprises two sections that diameter does not wait, wherein one section diameter is less than the internal diameter of filter screen adpting flange, the diameter of another section is then greater than the internal diameter of adpting flange, also be provided with the rectangular ring groove between these two sections, described seal ring is arranged in the groove, adopts the compression type seal ring, when spool is blocked water intake, one section adpting flange by the tight filter screen of seal ring that diameter is bigger has further been realized sealability.
The utility model is by coating plastic coating at spring, overcome spring and corroded the performance impact of being brought bottom valve, worm structure by valve body again, being convenient to valve body is connected with related accessory, also change accessory easily, by the joint seal ring is set simultaneously, has strengthened the sealability of bottom valve.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Structural representation of the present utility model comprises valve body 1, spool 2, bonding bellmouth 3, filter screen 4, nut 5, compression type seal ring 6, O RunddichtringO 7, plastic coating spring 8 as shown in Figure 1.
Valve body 1 is columnar structured, and the two ends of cylinder are respectively arranged with the screw thread that coincide with nut 5, and the end of nut 5 is provided with back-up ring.
The water inlet of valve body 1 is provided with filter screen 4, and it is clamped by the water intake end face of nut 5 and cylinder valve 1 by adpting flange.
Bonding bellmouth 3 is arranged at the water outlet end of valve body, is also clamped by the water outlet end face of nut 5 and cylinder valve 1 by adpting flange.
Be provided with O RunddichtringO 7 between the water intake end face of valve body 1 and the adpting flange of filter screen 4, also be provided with O RunddichtringO 7 between the adpting flange of valve body 1 water outlet end face and bonding bellmouth 3.
Spool 2 also is provided with the rectangular ring groove between waney two sections, is placed with compression type seal ring 6 in the groove.
Adopt the utility model, when bottom valve is in into the water process, spool 2 is at the impact lower compression spring 8 past retractions of current, and current flow into from the gap location of filter screen 4 adpting flanges and spool 2, and current are big more, the gap is also big more, when the water inlet process finished, spool 2 withstood water intake under the restoring force effect of spring 8, one section bigger adpting flange that compresses filter screen by seal ring of spool 2 diameters this moment, both prevented to flow backwards, realized sealability again.
Claims (7)
1, a kind of bottom valve, comprise valve body, be arranged at the spool of valve inner, be connected with spool and the may command spool block or break away from the valve inleting water mouth spring, be arranged at the filter screen at valve inleting water mouth place, it is characterized in that described spring outer surface is provided with plastic coating.
2, bottom valve according to claim 1 is characterized in that described valve body is a cylindrical shape, and the outer surface at valve body two ends is provided with screw thread, and the valve body two ends are provided with the corresponding nut that has ring washer.
3, bottom valve according to claim 2 is characterized in that the contact jaw of described filter screen and valve inleting water mouth is provided with by the adpting flange of the back-up ring of nut and the clamping of valve inleting water mouth end face.
4, bottom valve according to claim 1 is characterized in that the water outlet of described valve body is provided with bellmouth.
5,, it is characterized in that the contact jaw of described bellmouth and valve body water outlet is provided with by the adpting flange of the back-up ring of nut and the clamping of valve body water outlet end face according to claim 2 or 3 or 4 described bottom valves.
6, bottom valve according to claim 5 is characterized in that being provided with seal ring between the adpting flange of valve body water outlet end face and bellmouth between the adpting flange of the water intake end face of described valve body and filter screen.
7, bottom valve according to claim 6 is characterized in that described spool is provided with the seal ring that can contact with the adpting flange of filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200627485U CN200989480Y (en) | 2006-08-09 | 2006-08-09 | Bottom valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200627485U CN200989480Y (en) | 2006-08-09 | 2006-08-09 | Bottom valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200989480Y true CN200989480Y (en) | 2007-12-12 |
Family
ID=38940518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200627485U Expired - Lifetime CN200989480Y (en) | 2006-08-09 | 2006-08-09 | Bottom valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200989480Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151609A (en) * | 2015-03-26 | 2016-11-23 | 佛山市顺德区美的饮水机制造有限公司 | Water route extension check valve, integrating water route plate and water purifier |
| CN106438111A (en) * | 2015-08-10 | 2017-02-22 | 现代自动车株式会社 | Filter device for gas container and method of installing the same |
-
2006
- 2006-08-09 CN CNU2006200627485U patent/CN200989480Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151609A (en) * | 2015-03-26 | 2016-11-23 | 佛山市顺德区美的饮水机制造有限公司 | Water route extension check valve, integrating water route plate and water purifier |
| CN106151609B (en) * | 2015-03-26 | 2018-11-06 | 佛山市顺德区美的饮水机制造有限公司 | Water route extends check valve, integrating water route plate and water purifier |
| CN106438111A (en) * | 2015-08-10 | 2017-02-22 | 现代自动车株式会社 | Filter device for gas container and method of installing the same |
| CN106438111B (en) * | 2015-08-10 | 2020-09-01 | 现代自动车株式会社 | Filter device for installation in a gas container and method for installing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071212 |
|
| EXPY | Termination of patent right or utility model |