CN202629196U - Manually-openable check valve - Google Patents
Manually-openable check valve Download PDFInfo
- Publication number
- CN202629196U CN202629196U CN 201220295718 CN201220295718U CN202629196U CN 202629196 U CN202629196 U CN 202629196U CN 201220295718 CN201220295718 CN 201220295718 CN 201220295718 U CN201220295718 U CN 201220295718U CN 202629196 U CN202629196 U CN 202629196U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- flap
- check valve
- valve rod
- 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 - Fee Related
Links
Images
Landscapes
- Mechanically-Actuated Valves (AREA)
- Check Valves (AREA)
Abstract
The utility model discloses a manually-openable check valve. The problem that the conventional check valve only can unidirectionally flow is solved. The check valve comprises a valve body, a valve clack and an upper valve cap. A valve body structure of a lift check valve is adopted for a main body of the valve body. The check valve is characterized in that a lower valve cap is arranged on the valve body under the valve clack, and is connected with the valve body in a clamping way; a valve rod is inserted into the center of the lower valve cap; and a rack structure is machined on the valve rod. The check valve also comprises a handle, and the handle is fixedly connected with a gear mechanism, and is matched with the rack structure on the valve rod to form a gear-rack transmission mechanism. According to the check valve, liquid can be controlled to reversely flow by manually adjusting the valve rod, so that requirements of a special process are met.
Description
Technical field
The utility model relates to a kind of valve, and concrete is a kind of safety check.
Background technique
As everyone knows, traditional safety check, liquid can only flow to single direction, if liquid flows in the other direction, valve can be closed automatically, this also is the original intention of design safety check certainly; And in the actual production of oil field, under some special situation, in the technological process that safety check is set, also need the liquid reverse flow, and so design a kind of safety check that can reverse flow, adapt to the special process requirement in the field produces, be very important.
Summary of the invention
The purpose of the utility model provides a kind of safety check of realizing the liquid reverse flow, satisfies some special process needs, thereby provides convenience for field produces.
For realizing the foregoing invention purpose; The technological scheme that the application adopts is: but the manual open-type safety check comprises valve body, flap, bonnet, and the main body of said valve body adopts the valve body structure of Lift check valve; Flap is in the form of annular discs; Be located on the sealing surface of seat of valve body, flap top and bonnet bottom are processed with pilot sleeve respectively, and the pilot sleeve of flap is free lifting in the pilot sleeve of bonnet; In addition, on the valve body under the flap, have circular hole, bottom flange is set on the circular hole; Bottom flange adopts clipping type to be connected with valve body, and the bottom flange center penetrates valve rod, between valve rod and bottom flange Sealing is set; Be processed with rack structure on the valve rod; This safety check also comprises handle, and handle is fixedly connected gear mechanism, with rack structure on the valve rod formation rack and pinion drive mechanism that matches.
Beneficial effect: but the application's manual open-type safety check; On the basis of original Lift check valve, improve, promptly offered the manually opened mechanism of flap in addition, in the time of technological requirement liquid reverse flow in the corresponding valve body lower portion of flap; Rotatable handle driven gear rack gear moves upward valve rod; Back down and support flap, the fluid passage is opened, and reaches the purpose of liquid reverse flow; In the time of technological requirement liquid one-way flow, rotatable handle moves downward valve rod, and until the lower surface that is separated from flap, this moment, flap leaned on the strength that fluid flows to open voluntarily or close, and flow backwards to prevent medium, still had the original function of safety check; In a word, this safety check is reequiped through simple, but has just possessed the function of reverse flow, thereby satisfies the requirement of different process, for solving the production practical problem realistic plan is provided.
Description of drawings
But Fig. 1 is the structural representation of the application's manual open-type safety check.
Fig. 2 is the rack and pinion drive mechanism schematic representation that valve rod 6 and gear mechanism 8 are formed.
Embodiment
Below in conjunction with accompanying drawing the application is further described:
Combine shown in Figure 2 by Fig. 1: but the manual open-type safety check; Comprise valve body 9, flap 4, bonnet 1; The main body of said valve body 9 adopts the valve body structure of Lift check valve, and flap 4 is in the form of annular discs, is located on the sealing surface of seat 5 of valve body; Flap 4 tops and bonnet 1 bottom are processed with pilot sleeve respectively, and the pilot sleeve 3 of said flap is free lifting in the pilot sleeve 2 of bonnet; In addition, on the valve body under the flap 4, have circular hole, bottom flange 7 is set on the circular hole; Bottom flange 7 adopts clipping type to be connected with valve body 9, and bottom flange 7 centers penetrate valve rod 6, and 7 of valve rod 6 and bottom flanges are provided with Sealing; Be processed with rack structure on the valve rod 6; This safety check also comprises handle 10, and the head of handle 10 is fixedly connected gear mechanism 8, with rack structure 61 on the valve rod 6 formation rack and pinion drive mechanism that matches.
During the technological requirement one-directional fluid flow, liquid flows from left side that can manually opened safety check to the right, and the pressure of liquid upwards backs down flap 4, and open the fluid passage, and fluid passes through; If during reverse fluid flow, then the pressure of liquid and action of gravity cover on the sealing surface of valve seat flap 4 on flap 4, the reverse fluid flow passage is closed, and realizes the purpose of liquid one-way flow.
During the technological requirement reverse fluid flow, rotatable handle 10 driven gear rack gear move up valve rod 6, and from valve seat 5 sealing surfaces, the fluid passage is opened with flap 4 tops, and the purpose of reverse fluid flow can realize.When need recovered the one-way flow requirement, rotatable handle 10 drove valve rods 6 and moves down until the lower surface that breaks away from flap 4, recovers the function of safety check controlling liquid one-way flow.
Claims (1)
1. but manual open-type safety check; Comprise valve body, flap, bonnet; The main body of said valve body adopts the valve body structure of Lift check valve, and flap is in the form of annular discs, is located on the sealing surface of seat of valve body; Flap top and bonnet bottom are processed with pilot sleeve respectively, and the pilot sleeve of flap is free lifting in the pilot sleeve of bonnet; It is characterized in that: on the valve body under the flap, have circular hole in addition, bottom flange is set on the circular hole, bottom flange adopts clipping type to be connected with valve body; The bottom flange center penetrates valve rod; Between valve rod and bottom flange Sealing is set, is processed with rack structure on the valve rod, this safety check also comprises handle; Handle is fixedly connected gear mechanism, with rack structure on the valve rod formation rack and pinion drive mechanism that matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220295718 CN202629196U (en) | 2012-06-25 | 2012-06-25 | Manually-openable check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220295718 CN202629196U (en) | 2012-06-25 | 2012-06-25 | Manually-openable check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202629196U true CN202629196U (en) | 2012-12-26 |
Family
ID=47382400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220295718 Expired - Fee Related CN202629196U (en) | 2012-06-25 | 2012-06-25 | Manually-openable check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202629196U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019200039A1 (en) * | 2018-04-12 | 2019-10-17 | Dadco, Inc. | Pressure relief valve assembly |
| US10655264B2 (en) | 2015-08-04 | 2020-05-19 | Whirlpool Corporation | Laundry treating appliance with internal housing |
| CN111561590A (en) * | 2020-05-21 | 2020-08-21 | 广船国际有限公司 | Stop check valve |
-
2012
- 2012-06-25 CN CN 201220295718 patent/CN202629196U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10655264B2 (en) | 2015-08-04 | 2020-05-19 | Whirlpool Corporation | Laundry treating appliance with internal housing |
| US10914028B2 (en) | 2015-08-04 | 2021-02-09 | Whirlpool Corporation | Laundry treating appliance with stain station |
| US11203831B2 (en) | 2015-08-04 | 2021-12-21 | Whirlpool Corporation | Laundry treating appliance with internal housing |
| WO2019200039A1 (en) * | 2018-04-12 | 2019-10-17 | Dadco, Inc. | Pressure relief valve assembly |
| US11959556B2 (en) | 2018-04-12 | 2024-04-16 | Dadco, Inc. | Pressure relief valve assembly |
| CN111561590A (en) * | 2020-05-21 | 2020-08-21 | 广船国际有限公司 | Stop check valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201526691U (en) | Self-relief gate valve | |
| CN202629196U (en) | Manually-openable check valve | |
| CN202674331U (en) | Pressurizing stop valve | |
| CN202850945U (en) | Compound seal plug valve with automatic-manual dual control function | |
| CN202176766U (en) | Check and stop valve | |
| CN102678960A (en) | Hydraulic driven diaphragm type drain valve | |
| CN202418755U (en) | Lateral-through type check valve | |
| CN103851249A (en) | Automatic valve | |
| CN205401781U (en) | Lead screw gate valve of variable rotational speed and torque | |
| CN208203704U (en) | hydraulic station structure | |
| CN102588635A (en) | Return stop valve | |
| CN206754438U (en) | The gate valve of folding with convenience | |
| CN205689841U (en) | A kind of hydraulic pressure autocontrol valve | |
| CN206874826U (en) | A kind of hydraulic control conveys casting resin stop valve | |
| CN204635053U (en) | A kind of food processing automatic watering apparatus | |
| CN203322410U (en) | Safety valve with sealing sleeve | |
| CN202768881U (en) | Double eccentric type worm wheel butterfly valve | |
| CN204784905U (en) | Large -scale dual control fuel feeding relief valve | |
| CN202195072U (en) | Stop valve easy to open and close | |
| CN205181820U (en) | Controllable capacity mask machine mechanism of adding water | |
| CN203823153U (en) | Ascending and descending type flow interception unscrewing type check valve | |
| CN203669817U (en) | Novel inner blowout control drilling tool float valve | |
| CN203703187U (en) | Elastic upper sealing mechanism of corrugated pipe valve | |
| CN202176723U (en) | Stop valve convenient to open | |
| CN203146845U (en) | Butterfly valve with handwheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20190625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |