CN205260862U - Bidirectional sealing butterfly valve - Google Patents
Bidirectional sealing butterfly valve Download PDFInfo
- Publication number
- CN205260862U CN205260862U CN201521057556.0U CN201521057556U CN205260862U CN 205260862 U CN205260862 U CN 205260862U CN 201521057556 U CN201521057556 U CN 201521057556U CN 205260862 U CN205260862 U CN 205260862U
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly plate
- butterfly
- sealing
- valve stem
- 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
Links
Landscapes
- Lift Valve (AREA)
Abstract
一种双向密封蝶阀，包括阀体、阀杆、蝶板，阀杆穿过阀体并穿入蝶板孔内，阀体上设置有阀座，阀座与蝶板配合密封，阀杆与蝶板之间通过键连接，在主承压方向上，调节螺钉旋入蝶板并与阀杆抵接，以限制阀杆与蝶板之间的轴向移动。本实用新型的有益效果是，采用调节螺钉调整蝶板和阀杆的位置，使蝶板密封面的位置一直处在利于密封的位置。在主承压方向侧存在压差时，介质压力会将蝶板压向密封面，蝶阀具有良好的密封性能；在另一端的次承压方向上存在压差时，调节螺钉消除了蝶板与阀杆之间的间隙，蝶板不会被压力推向不利于密封的一侧，保证其次承压方向上的密封效果，从而具有双向密封功能。
A two-way sealed butterfly valve, including a valve body, a valve stem, and a butterfly plate. The valve stem passes through the valve body and penetrates into the hole of the butterfly plate. The valve body is provided with a valve seat. The plates are connected by keys. In the direction of the main pressure bearing, the adjusting screw is screwed into the butterfly plate and abuts against the valve stem to limit the axial movement between the valve stem and the butterfly plate. The beneficial effect of the utility model is that the position of the butterfly plate and the valve rod is adjusted by using the adjusting screw, so that the position of the sealing surface of the butterfly plate is always in a position favorable for sealing. When there is a pressure difference on the side of the main pressure bearing direction, the medium pressure will press the butterfly plate to the sealing surface, and the butterfly valve has good sealing performance; Due to the gap between the valve stems, the butterfly plate will not be pushed to the side that is not conducive to sealing by the pressure, so as to ensure the sealing effect in the direction of the second pressure bearing, thus having a two-way sealing function.
Description
所属技术领域 Technical field
本实用新型涉及一种蝶阀，特别是涉及一种双向密封蝶阀。 The utility model relates to a butterfly valve, in particular to a bidirectional sealing butterfly valve.
背景技术 Background technique
现有技术的双向密封蝶阀，其双向密封功能是通过固定的偏心蝶板和可以自动补偿的阀座实现的，自动补偿的阀座结构又可分为浮动阀座和弹性元件阀座，原理都是使阀座贴紧蝶板而实现密封。但在这过程中，阀座会因介质杂质颗粒或者本身结构发生卡塞，从而无法实现双向密封的功能。 The two-way sealing butterfly valve of the prior art, its two-way sealing function is realized by a fixed eccentric butterfly plate and a valve seat that can be automatically compensated, and the structure of the automatically compensated valve seat can be divided into a floating valve seat and an elastic element valve seat. It is to make the valve seat close to the butterfly plate to achieve sealing. However, during this process, the valve seat will be jammed due to medium impurity particles or its own structure, so that the two-way sealing function cannot be realized.
发明内容 Contents of the invention
为了克服现有双向密封蝶阀的缺点，本实用新型提供一种结构简单，可靠性高的双向密封蝶阀。 In order to overcome the shortcomings of the existing bidirectional sealing butterfly valve, the utility model provides a bidirectional sealing butterfly valve with simple structure and high reliability.
本实用新型解决其技术问题所采用的技术方案是，一种双向密封蝶阀，包括阀体、阀杆、蝶板，阀杆穿过阀体并穿入蝶板孔内，阀体上设置有阀座，阀座与蝶板配合密封，阀杆与蝶板之间通过键连接，在主承压方向上，调节螺钉旋入蝶板并与阀杆抵接，以限制阀杆与蝶板之间的轴向移动。 The technical solution adopted by the utility model to solve the technical problem is that a two-way sealed butterfly valve includes a valve body, a valve stem, and a butterfly plate. The valve stem passes through the valve body and penetrates into the hole of the butterfly plate. Seat, the valve seat and the butterfly plate are sealed together, and the valve stem and the butterfly plate are connected by a key. In the main pressure bearing direction, the adjusting screw is screwed into the butterfly plate and abuts against the valve stem to limit the gap between the valve stem and the butterfly plate. axial movement.
阀杆与蝶板之间通过位于同一直径上对称布置的两个键固定连接，调节螺钉旋入蝶板并与键抵接。 The valve stem and the butterfly plate are fixedly connected by two keys symmetrically arranged on the same diameter, and the adjusting screw is screwed into the butterfly plate and abuts against the keys.
本实用新型的有益效果是，采用调节螺钉调整蝶板和阀杆的位置，使蝶板密封面的位置一直处在利于密封的位置。在主承压方向侧存在压差时，介质压力会将蝶板压向密封面，蝶阀具有良好的密封性能；在另一端的次承压方向上存在压差时，调节螺钉消除了蝶板与阀杆之间的间隙，蝶板不会被压力推向不利于密封的一侧，保证其次承压方向上的密封效果，从而具有双向密封功能。 The beneficial effect of the utility model is that the position of the butterfly plate and the valve rod is adjusted by using the adjusting screw, so that the position of the sealing surface of the butterfly plate is always in a position favorable for sealing. When there is a pressure difference on the side of the main pressure bearing direction, the medium pressure will press the butterfly plate to the sealing surface, and the butterfly valve has good sealing performance; Due to the gap between the valve stems, the butterfly plate will not be pushed to the side that is not conducive to sealing by the pressure, ensuring the sealing effect in the direction of the second pressure bearing, thus having a two-way sealing function.
附图说明 Description of drawings
图1是实施例的结构示意图； Fig. 1 is the structural representation of embodiment;
图2是图1中A处放大图。 Fig. 2 is an enlarged view of A in Fig. 1 .
图中：1.阀体；2.阀座；3.蝶板；4.阀杆；5.键；6.调节螺钉；7.蝶板孔。 In the figure: 1. Valve body; 2. Valve seat; 3. Butterfly plate; 4. Valve stem; 5. Key; 6. Adjusting screw; 7. Butterfly plate hole.
具体实施方式 detailed description
如图1、2所示，一种双向密封蝶阀，包括阀体1、阀杆4、蝶板3，阀杆4穿过阀体1并穿入蝶板孔7内，阀体1上设置有阀座2，阀座2与蝶板3配合密封，阀杆4与蝶板3之间通过键5连接，在主承压方向上，调节螺钉6旋入蝶板3并与阀杆4抵接，以限制阀杆4与蝶板3之间的轴向移动。本实施例中，阀杆4与蝶板3之间通过位于同一直径上对称布置的两个键5固定连接，调节螺钉6旋入蝶板3并与键5抵接。本申请的保护范围不拘于本实施例中的方式，只要是通过调节螺钉6消除阀杆4位于蝶板孔7内的间隙的都属于本申请的保护范围。 As shown in Figures 1 and 2, a two-way sealed butterfly valve includes a valve body 1, a valve stem 4, and a butterfly plate 3. The valve stem 4 passes through the valve body 1 and penetrates into the hole 7 of the butterfly plate. The valve body 1 is provided with The valve seat 2, the valve seat 2 and the butterfly plate 3 cooperate to seal, the valve stem 4 and the butterfly plate 3 are connected by the key 5, and the adjusting screw 6 is screwed into the butterfly plate 3 and abuts against the valve stem 4 in the direction of the main pressure bearing , to limit the axial movement between the stem 4 and the butterfly plate 3 . In this embodiment, the valve stem 4 and the butterfly plate 3 are fixedly connected by two keys 5 arranged symmetrically on the same diameter, and the adjusting screw 6 is screwed into the butterfly plate 3 and abuts against the keys 5 . The scope of protection of the present application is not limited to the method in this embodiment, as long as the adjustment screw 6 is used to eliminate the gap between the valve stem 4 in the hole 7 of the butterfly plate, it all falls within the scope of protection of the present application.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521057556.0U CN205260862U (en) | 2015-12-18 | 2015-12-18 | Bidirectional sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521057556.0U CN205260862U (en) | 2015-12-18 | 2015-12-18 | Bidirectional sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205260862U true CN205260862U (en) | 2016-05-25 |
Family
ID=56002391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521057556.0U Expired - Lifetime CN205260862U (en) | 2015-12-18 | 2015-12-18 | Bidirectional sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205260862U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529611A (en) * | 2019-08-30 | 2019-12-03 | 天津祥嘉流体控制系统有限公司 | A kind of High Pressure Difference butterfly valve structure |
| CN112283365A (en) * | 2020-12-07 | 2021-01-29 | 江苏神通阀门股份有限公司 | Bidirectional sealing large-caliber triple-eccentric butterfly valve for high-speed gas |
| CN116697058A (en) * | 2022-02-25 | 2023-09-05 | 中核苏阀科技实业股份有限公司 | A detachable and adjustable butterfly valve butterfly plate locking structure |
-
2015
- 2015-12-18 CN CN201521057556.0U patent/CN205260862U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529611A (en) * | 2019-08-30 | 2019-12-03 | 天津祥嘉流体控制系统有限公司 | A kind of High Pressure Difference butterfly valve structure |
| CN112283365A (en) * | 2020-12-07 | 2021-01-29 | 江苏神通阀门股份有限公司 | Bidirectional sealing large-caliber triple-eccentric butterfly valve for high-speed gas |
| CN116697058A (en) * | 2022-02-25 | 2023-09-05 | 中核苏阀科技实业股份有限公司 | A detachable and adjustable butterfly valve butterfly plate locking structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205260862U (en) | Bidirectional sealing butterfly valve | |
| CN103410997B (en) | High pressure relief formula double disc parallel seat single-face hard sealing gate valve | |
| CN203948666U (en) | There is the stop valve of double-level-metal seal bellows | |
| CN205956440U (en) | Seal structure of unsteady ball valve of metal seal | |
| CN205155180U (en) | Two -way pressure metal seal triple offset butterfly valve | |
| CN207349490U (en) | Two way seal float ball valve | |
| CN203892587U (en) | High-performance butterfly valve capable of bearing pressure in forward and reverse directions | |
| CN204062141U (en) | A kind of H type valve seat shape metallic leak-proof structure | |
| CN106151560B (en) | A kind of wedge action valve | |
| CN201896961U (en) | Ceramic-core valve capable of adjusting preload | |
| CN205155179U (en) | Diaphragm formula two way seal butterfly valve sealed firmly | |
| CN207195710U (en) | The pneumatic anti-device that builds the pressure of moushroom valve | |
| CN205101576U (en) | Harsh high performance butterfly valve for operating mode | |
| CN203627871U (en) | Double-nut straight-pipe threaded ball valve | |
| CN204533760U (en) | The novel matching structure of valve rod and valve gap in a kind of nuclear-power diaphragm valve | |
| CN204784825U (en) | High temperature high pressure ball valve | |
| CN204716991U (en) | A kind of dual leak-stop valve | |
| CN204610859U (en) | A kind of sealed type stop valve | |
| CN204942570U (en) | Sphere retaining valve | |
| CN205064959U (en) | Inflation formula double containment relief valve | |
| CN204942560U (en) | Top-opening type stop valve | |
| CN204704404U (en) | A kind of two-way hard seal butterfly valve with elastic seat | |
| CN204553897U (en) | The self-powering type seal arrangement of ultrahigh pressure balance stop valve | |
| CN203560468U (en) | It has a butterfly valve sealing structure with good two-way metal self-sealing effect | |
| CN103878598A (en) | Machine tool body pressing plate device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230323 Address after: No. 8, Shengtong Road, Huilong Town, Qidong City, Nantong City, Jiangsu Province, 226200 Patentee after: Shentong Semiconductor Technology (Nantong) Co.,Ltd. Address before: No. 88, Xiexing Street, Nanyang Town, Qidong City, Nantong City, Jiangsu Province, 226232 Patentee before: JIANGSU SHENTONG VALVE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20160525 |
|
| CX01 | Expiry of patent term |