CN202545988U - Valve rod protecting device - Google Patents
Valve rod protecting device Download PDFInfo
- Publication number
- CN202545988U CN202545988U CN2012202159108U CN201220215910U CN202545988U CN 202545988 U CN202545988 U CN 202545988U CN 2012202159108 U CN2012202159108 U CN 2012202159108U CN 201220215910 U CN201220215910 U CN 201220215910U CN 202545988 U CN202545988 U CN 202545988U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- sheath
- support
- gland
- quiet
- 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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- Fluid-Driven Valves (AREA)
- Valve Housings (AREA)
- Details Of Valves (AREA)
Abstract
The utility model relates to a valve rod protecting device which comprises a support, an exposed valve rod is arranged in the middle of the support, the lower end of the support is provided with a gland, the valve rod penetrates through the gland, and a protecting jacket sheathed outside the valve rod is arranged on the support. The protecting device is made on the exposed valve rod, so that the valve rod can be well protected in severe working conditions by using the device. The protecting device also has the functions of fire prevention, water prevention, dust prevention, corrosion prevention and the like, so that the service life of the valve rod is prolonged, the service life of the entire valve is prolonged, and the safety and the reliability are improved. The device is applicable to pneumatic, electric, hydraulic valves and the like with high switching speed.
Description
Technical field
The utility model relates to a kind of valve field, especially a kind of valve rod protective equipment.
Background technique
At present in the mechanism design of gate valve; Usually in order to be convenient for changing filler,, one section exposed valve rod 3 is arranged in the support 2 above gland 1 like accompanying drawing 1; Under the working condition rugged environment; The exposed valve rod 3 in this place contains lubricating grease because of the surface and adsorbs dust or corroded by corrosive gas, causes the phenomenon that switch is ineffective or valve rod is stuck, has reduced working life, reliability and the Security of valve.
Summary of the invention
The utility model will solve the shortcoming of above-mentioned existing technology, and a kind of valve rod protective equipment is provided, and protects exposed valve rod, thereby prevents valve rod absorption dust or corroded by corrosive gas.
The utility model solves the technological scheme that its technical problem adopts: this valve rod protective equipment, comprise support, and the centre of support is provided with exposed valve rod, and the lower end of support is provided with gland, and valve rod passes gland, and support is provided with and is enclosed within the outer protecting cover of valve rod.Protecting cover plays protective action effectively, and prevents exposed valve rod absorption dust or corroded by corrosive gas, avoids the phenomenon that switch is ineffective or valve rod is stuck to take place.
Perfect for further; Wherein protecting cover comprises the quiet sheath that is fixed on support upper end, is the moving sheath that is slidingly connected with quiet sheath; The lower end roof pressure of moving sheath is on gland, and moving sheath is connected on the inwall of quiet sheath, and the upper-end surface of gland is provided with and moves the step surface that sheath is complementary.Wherein moving sheath is free to slide on quiet sheath, can slip in the quiet sheath and exposes valve rod moving sheath, is convenient to change filler; Wherein the gland terrace of appearing on the stage can be located the lower end of moving sheath, anti-stop sheath contact valve rod, and make the better tightness between sheath and the gland.
The effect that the utility model is useful is: the utility model is at the exposed valve rod device that properly protects; Adopt this device can under the working condition rugged environment, well protect valve rod; And have functions such as fire prevention, waterproof and dustproof, corrosion protection, thus increased the working life of valve rod, increase the working life of whole valve; Security, reliability have been improved, the fast valve of switching speed such as that this device is applicable to is pneumatic, electronic, hydraulic pressure.
Description of drawings
Fig. 1 is the structural representation of no valve rod protective equipment in the existing technology;
Fig. 2 is the structural representation of the utility model;
Fig. 3 is the enlarged diagram of A part among Fig. 2.
Description of reference numerals: support 1, gland 2, step surface 2-1, valve rod 3, protecting cover 4, quiet sheath 4-1, moving sheath 4-2.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
With reference to accompanying drawing: this valve rod protective equipment, comprise support 1, the centre of support 1 is provided with exposed valve rod 3, and the lower end of support 1 is provided with gland 2, and valve rod 3 passes gland 2, and support 1 is provided with and is enclosed within the outer protecting cover 4 of valve rod 3.Sheath 4 comprises the quiet sheath 4-1 that is fixed on support 1 upper end, is the moving sheath 4-2 that is slidingly connected with quiet sheath 4-1, and the lower end roof pressure of moving sheath 4-2 is on gland 2.Moving sheath 4-2 is connected on the inwall of quiet sheath 4-1.The upper-end surface of gland 2 is provided with and moves the step surface 2-1 that sheath 4-2 is complementary.
Protecting cover 4 in the utility model is made up of quiet sheath 4-1 and moving sheath 4-2, when valve is installed, quiet sheath 4-1 is installed in the support 1; Moving sheath 4-2 is slidingly connected on the quiet sheath 4-1; And be enclosed within on the exposed valve rod 1, quiet sheath 4-1 and support 1 are fixing, and the inwall that moving sheath 4-2 can prolong quiet sheath 4-1 is up and down; And locate with the step surface 2-1 on the gland 2; To move sheath 4-2 at ordinary times and put down and play good protective action, and when needs are changed filler, and can move up and lift and change filler easily moving sheath 4-2.
The utility model is at exposed valve rod 1 device that properly protects; Adopt this device can under the working condition rugged environment, well protect valve rod; And have functions such as fire prevention, waterproof and dustproof, corrosion protection, thus increased the working life of valve rod 1, increase the working life of whole valve; Security, reliability have been improved, the fast valve of switching speed such as that this device is applicable to is pneumatic, electronic, hydraulic pressure.
Though the utility model is through illustrating and describe with reference to preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.
Claims (4)
1. valve rod protective equipment; Comprise support (1); The centre of support (1) is provided with exposed valve rod (3); The lower end of support (1) is provided with gland (2), and said valve rod (3) passes gland (2), it is characterized in that: said support (1) is provided with and is enclosed within the outer protecting cover (4) of valve rod (3).
2. valve rod protective equipment according to claim 1; It is characterized in that: said protecting cover (4) comprises the quiet sheath (4-1) that is fixed on support (1) upper end, is the moving sheath (4-2) that is slidingly connected with quiet sheath (4-1), and the lower end roof pressure of moving sheath (4-2) is on gland (2).
3. valve rod protective equipment according to claim 2 is characterized in that: said moving sheath (4-2) is connected on the inwall of quiet sheath (4-1).
4. valve rod protective equipment according to claim 2 is characterized in that: the upper-end surface of said gland (2) is provided with and moves the step surface (2-1) that sheath (4-2) is complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202159108U CN202545988U (en) | 2012-05-15 | 2012-05-15 | Valve rod protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202159108U CN202545988U (en) | 2012-05-15 | 2012-05-15 | Valve rod protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545988U true CN202545988U (en) | 2012-11-21 |
Family
ID=47166626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202159108U Expired - Fee Related CN202545988U (en) | 2012-05-15 | 2012-05-15 | Valve rod protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545988U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671534A (en) * | 2019-09-05 | 2020-01-10 | 王小娟 | Energy-saving electric valve with valve rod protection function |
-
2012
- 2012-05-15 CN CN2012202159108U patent/CN202545988U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671534A (en) * | 2019-09-05 | 2020-01-10 | 王小娟 | Energy-saving electric valve with valve rod protection function |
| CN110671534B (en) * | 2019-09-05 | 2021-04-23 | 浙江西博思测控技术有限公司 | Energy-saving electric valve with valve rod protection function |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20180515 |