CN202140594U - A novel gate valve - Google Patents
A novel gate valve Download PDFInfo
- Publication number
- CN202140594U CN202140594U CN 201120208430 CN201120208430U CN202140594U CN 202140594 U CN202140594 U CN 202140594U CN 201120208430 CN201120208430 CN 201120208430 CN 201120208430 U CN201120208430 U CN 201120208430U CN 202140594 U CN202140594 U CN 202140594U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- gate valve
- spool
- stem mut
- 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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Abstract
The utility model discloses a novel gate valve, comprising a valve cover, a valve body, a valve rod and a valve plug disposed in the valve body. The lower end of the valve rod is connected with the valve plug. The novel gate valve is characterized in that the lower end of the valve rod is provided with thread, a groove is disposed in the valve plug and is provided with a valve rod nut corresponding to the thread; and the valve rod nut is connected with the valve plug into a whole. Through a die casting technique, the gate valve enables the valve rod nut and the valve plug to be integrated together directly through injection molding and thus prevents the valve rod nut from swaying in the valve plug groove and guarantees more stable connection between the valve rod and the valve plug, thereby having improved performance. Moreover, the novel gate valve is simple in structure and easy to produce and manufacture.
Description
Technical field
The utility model relates to a kind of gate valve.
Background technique
In the gate valve product, traditional gate valve preparation process is: at first, produce various required foundry goods in the gate valve, like valve body, valve gap, spool, handwheel etc.; Prepare various required accessories then, like valve rod, Stem Mut, seal rubber pad, setting sleeve, O RunddichtringO, sealing nut, dust-proof seal ring, screw etc.; At last gate valve is assembled.In this preparation process, it is extremely inconvenient that Stem Mut assembles up, and generally is through the line cuts into two, embeds at twice in the groove that gate valve spool foundry goods opened.After Stem Mut is cut, when assembling up again, bigger error is arranged, and can not fix well.Stem Mut rocks in groove can be serious in the usability that influences product.
Summary of the invention
The technical purpose of the utility model provides a kind of novel gate valve with firm Stem Mut, solves the problem that exists in the existing technology.
The technological scheme of the utility model is:
A kind of novel gate valve; Comprise valve gap, valve body, valve rod and be located at the spool in the valve body; The valve rod lower end links to each other with spool, it is characterized in that: said valve rod lower end is provided with screw thread, is provided with hole slot in the spool; Be provided with in the said hole slot and the corresponding Stem Mut of said screw thread, said Stem Mut and spool are one.
As preferably, said Stem Mut is a copper spare.
Said valve rod upper end is fixed in the valve gap, and its top is provided with the handwheel of rotary valve rod.
The preparation method of the utility model:
At first, the required copper spare Stem Mut of preparation gate valve when producing the gate valve spool, is embedded into Stem Mut in the casting mold die cavity relevant position of spool, and spool is poured into a mould in mould assembling then.Before embedding on surfaces coated resistant to elevated temperatures coating.
The beneficial effect of the utility model is: copper casting Stem Mut and foundry goods gate valve spool are cast for one; Make the copper casting Stem Mut can well be fixed on the gate valve spool; And exempt follow-up mechanical smear metal to corresponding part; Improved manufacturing efficiency, the gate valve yield rate is reached more than 98%, and the long 3-5 of gate valve times of producing than tratitional technology gate valve working life of producing.The utility model is simple in structure, and cost of production is low, and preparation process and uncomplicated.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the local structure for amplifying schematic representation of the utility model.
Embodiment
For technological scheme and the technical purpose of illustrating the utility model, the utility model is done further introduction below in conjunction with accompanying drawing and embodiment.
As shown in the figure, a kind of novel gate valve comprises valve gap, valve body, valve rod 1 and is located at the spool 2 in the valve body; Valve rod 1 lower end is provided with screw thread; Be provided with hole slot in the spool 2, be provided with in the hole slot and the corresponding Stem Mut 3 of said screw thread, said Stem Mut 3 is an one with spool 2.Through valve rod 1 lower end is threaded in the Stem Mut 3, thereby valve rod 1 and spool 2 are connected.Valve rod 1 upper end is fixed in the valve gap, and the top of valve gap also is provided with the handwheel of rotary valve rod.
As preferably, Stem Mut 3 selects for use copper spare material to process.
At first, preparation gate valve required copper spare Stem Mut 3 when producing the gate valve spool, embeds it in casting mold die cavity relevant position of spool 2, before embedding on Stem Mut 3 surfaces coated resistant to elevated temperatures coating, embed die cavity after, the cast of spool 2 is carried out in mould assembling.The pouring temperature of foundry goods gate valve spool is very high, makes Stem Mut 3 and foundry goods gate valve spool contact position fuse, and well fixes Stem Mut 3, must not make it and rocks.
Below disclose the utility model with preferred embodiment, so it is not in order to restriction the utility model, and all employings are equal to replacement or the technological scheme that obtained of equivalent transformation mode, all drop within the protection domain of the utility model.
Claims (3)
1. novel gate valve; Comprise valve gap, valve body, valve rod (1) and be located at the spool (2) in the valve body; Valve rod (1) lower end links to each other with spool (2), it is characterized in that: said valve rod (1) lower end is provided with screw thread, and spool is provided with hole slot in (2); Be provided with in the said hole slot and the corresponding Stem Mut of said screw thread (3), said Stem Mut (3) is an one with spool.
2. a kind of novel gate valve according to claim 1 is characterized in that: said Stem Mut (3) is a copper spare.
3. a kind of novel gate valve according to claim 1 and 2 is characterized in that: said valve rod upper end is fixed in the valve gap, and its top is provided with the handwheel of rotary valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120208430 CN202140594U (en) | 2011-06-20 | 2011-06-20 | A novel gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120208430 CN202140594U (en) | 2011-06-20 | 2011-06-20 | A novel gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202140594U true CN202140594U (en) | 2012-02-08 |
Family
ID=45551652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120208430 Expired - Fee Related CN202140594U (en) | 2011-06-20 | 2011-06-20 | A novel gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202140594U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671989A (en) * | 2013-12-31 | 2014-03-26 | 山东莱德机械有限公司 | Elastic self-sealing gate valve |
-
2011
- 2011-06-20 CN CN 201120208430 patent/CN202140594U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671989A (en) * | 2013-12-31 | 2014-03-26 | 山东莱德机械有限公司 | Elastic self-sealing gate valve |
| CN103671989B (en) * | 2013-12-31 | 2015-11-25 | 山东莱德机械有限公司 | Elasticity self-sealing gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20130620 |