CN200985794Y - Liquid return circuit turnoff valve - Google Patents
Liquid return circuit turnoff valve Download PDFInfo
- Publication number
- CN200985794Y CN200985794Y CN 200620135171 CN200620135171U CN200985794Y CN 200985794 Y CN200985794 Y CN 200985794Y CN 200620135171 CN200620135171 CN 200620135171 CN 200620135171 U CN200620135171 U CN 200620135171U CN 200985794 Y CN200985794 Y CN 200985794Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- blind pipe
- seat
- shell
- 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
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model discloses a liquid return breaker, which comprises a tubular valve shell with cavity in the stage hole structure, and a soft sealing valve seat, a valve sleeve and a joint that are arranged inside of the valve shell, as well as a valve core and a reset spring that are arranged in the valve sleeve; wherein the valve sleeve is sleeved in the valve cavity composed of the valve shell and the joint, while the valve core is a blind pipe sleeved inside of the valve sleeve, and the blind end of the blind pipe is matched with the soft sealing seat; and the side wall of the blind end of the blind pipe is provided with a flow channel, while the reset spring is sleeved on the outer wall of the blind pipe; and a valve seat bracket with a vertical cross section in a T shape structure is arranged between the soft sealing valve seat and the valve cavity of the valve shell. The utility model has the advantages of simple structure and convenient manufacturing and processing and maintenance. Through the valve seat frame with a vertical cross section in the T shape structure that is arranged in the soft sealing valve seat and the valve shell, the mechanical performance of the sealing valve seat is greatly increased, thus making the valve seat possess relatively stronger impulse resistant capacity while preserving the soft sealing advantages.
Description
Technical field
The utility model relates to hydraulic valve, especially relates to time liquid cutout valve that is used for hydraulic support.
Background technology
Return the liquid cutout valve and be mainly used in the major loop of hydraulic support, make oil return line have certain pressure dorsad, be independent of each other independently of one another to strengthen the action stability of whole system, can make again simultaneously the oil return system that faces between the frame.But time liquid cutout valve that is used for hydraulic support master oil return line at present, structure are comparatively complicated, and because valve seat adopts soft sealing structure, make that mechanical performance and impact resistance are relatively poor.The inlet direction that has back the liquid cutout valve in addition now be subjected to valve structure restriction and versatility is relatively poor.
The utility model content
The purpose of this utility model be to provide a kind of simple in structure, flow is big, shock-resistant, can change the liquid flow path direction arbitrarily return the liquid cutout valve.
For achieving the above object, the utility model can be taked following technical proposals:
Described in the utility model time liquid cutout valve, it comprises that valve pocket is the tubular valve shell of shoulder hole structure, be arranged on soft seal valve seat, valve pocket, joint in the described valve casing, and be installed in spool and back-moving spring in the described valve pocket, described valve pocket is sleeved in the valve pocket that is made of valve casing and joint, described spool is that slip cap is contained in the blind pipe in the valve pocket, and the cecum of described blind pipe cooperates with the soft seal valve base sealing; Cecum sidewall at blind pipe offers runner, and described back-moving spring is sleeved on the outer wall of blind pipe; Being provided with the longitudinal section in the valve pocket between soft seal valve seat and valve casing is the valve seat support of T shape structure.
The utility model advantage is simple in structure, makes processing, easy to maintenance.By the longitudinal section that is set in place in soft seal valve seat and described valve casing is the valve seat skeleton of T shape structure, has strengthened the mechanical performance of seal valve seat greatly, makes valve seat possess stronger impact resistance again when keeping the soft seal plurality of advantages.During use, the hydraulic support oil return enters valve pocket from valve casing, and the major loop pipeline is communicated with the joint at described spool rear portion, and when returning hydraulic coupling greater than the opening pressure of cutout valve, spool moves to left, and cutout valve is opened, and plays certain back pressure effect in the loop; When returning hydraulic coupling when being lower than the opening pressure of cutout valve, or working connection pressure is when having fluctuation, and cutout valve is closed automatically under the effect of described back-moving spring.Connect the support oil return line when hydraulic system requires oil return cutout valve joint, during valve casing connected tank oil return pipe, only need change the installation direction of the parts in joint and the valve casing and can realize that this is the not available superiority of similar valve.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
As shown in the figure, described in the utility model time liquid cutout valve, it comprises that valve pocket is the tubular valve shell 1 of shoulder hole structure, be arranged on soft seal valve seat 2, valve pocket 3, joint 4 in the described valve casing 1, and be installed in spool 5 and back-moving spring 6 in the described valve pocket 3, described valve pocket 3 is sleeved in the valve pocket that is made of valve casing 1 and joint 4, and described spool 5 is contained in blind pipe in the valve pocket 3 for slip cap, and the cecum of described blind pipe and soft seal valve seat 2 are sealed and matched; Cecum sidewall at blind pipe offers runner, and described back-moving spring 6 is sleeved on the outer wall of blind pipe; Being provided with the longitudinal section in the valve pocket between soft seal valve seat 2 and valve casing 1 is the valve seat support 7 of T shape structure.
Claims (1)
1, a kind of time liquid cutout valve, it comprises that valve pocket is the tubular valve shell (1) of shoulder hole structure, be arranged on soft seal valve seat (2), valve pocket (3), joint (4) in the described valve casing (1), and be installed in spool (5) and back-moving spring (6) in the described valve pocket (3), it is characterized in that: described valve pocket (3) is sleeved in the valve pocket that is made of valve casing (1) and joint (4), described spool (5) is contained in the interior blind pipe of valve pocket (3) for slip cap, and the cecum of described blind pipe and soft seal valve seat (2) are sealed and matched; Cecum sidewall at blind pipe offers runner, and described back-moving spring (6) is sleeved on the outer wall of blind pipe; Be provided with the valve seat support (7) that the longitudinal section is a T shape structure at the valve pocket that is positioned between soft seal valve seat (2) and the valve casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620135171 CN200985794Y (en) | 2006-12-22 | 2006-12-22 | Liquid return circuit turnoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620135171 CN200985794Y (en) | 2006-12-22 | 2006-12-22 | Liquid return circuit turnoff valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200985794Y true CN200985794Y (en) | 2007-12-05 |
Family
ID=38915252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620135171 Expired - Fee Related CN200985794Y (en) | 2006-12-22 | 2006-12-22 | Liquid return circuit turnoff valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200985794Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678538A (en) * | 2012-06-12 | 2012-09-19 | 许尚志 | Soft sealing mechanism of manual hydraulic pump |
| CN107725083A (en) * | 2017-11-24 | 2018-02-23 | 鸿大智能机械有限公司 | The nitrogen safety valve that coal supply ore deposit comprehensive mining hydraulic bracket uses |
-
2006
- 2006-12-22 CN CN 200620135171 patent/CN200985794Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678538A (en) * | 2012-06-12 | 2012-09-19 | 许尚志 | Soft sealing mechanism of manual hydraulic pump |
| CN107725083A (en) * | 2017-11-24 | 2018-02-23 | 鸿大智能机械有限公司 | The nitrogen safety valve that coal supply ore deposit comprehensive mining hydraulic bracket uses |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHENG ZHOU COALA MACHINE HYDRAULIC PRESSURE ELECTR Free format text: FORMER NAME: ZHENGZHOU HENGDA HYDRAULIC ENGINEER CENTER |
|
| CP03 | Change of name, title or address |
Address after: No. 105, Huashan Road, Henan, Zhengzhou Province, China: 450013 Patentee after: Hydraulic & Electric Control Equipment Co., Ltd., Zhengzhou Coal Mining Machinery Group Co., Ltd. Address before: No. 105, Huashan Road, Henan, Zhengzhou Province, China: 450013 Patentee before: Zhengzhou Hengda Hydraulic Engineering Center |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071205 Termination date: 20131222 |