CN102954265A - Gate valve rod protection device - Google Patents
Gate valve rod protection device Download PDFInfo
- Publication number
- CN102954265A CN102954265A CN 201110243309 CN201110243309A CN102954265A CN 102954265 A CN102954265 A CN 102954265A CN 201110243309 CN201110243309 CN 201110243309 CN 201110243309 A CN201110243309 A CN 201110243309A CN 102954265 A CN102954265 A CN 102954265A
- Authority
- CN
- China
- Prior art keywords
- valve rod
- protecting jacket
- valve
- rod protecting
- support
- 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.)
- Pending
Links
Images
Landscapes
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention relates to a gate valve rod protection device. A gate valve comprises a valve body, a valve cap, a packing gland and a support; the valve body comprises a gate plate, a gate plate seal face, a valve body seal face and a valve rod; the valve cap comprises a swing bolt and a packing box consisting of an upper seal seat, a packing seat and packing; the packing gland comprises a packing pressure plate and a packing pressure sleeve; and the support comprises a valve rod nut, a bearing gland, an oil cup and a hand wheel. The valve rod protection device comprises an upper valve rod protection jacket, a middle valve rod protection jacket and a dustproof cover. The upper valve rod protection jacket is positioned on the valve rod on the upper portion of the valve rod nut and fixedly connected with the valve rod nut; the dustproof cover is sleeved on the upper valve rod protection jacket; and the middle valve rod protection jacket is sleeved on the valve rod below the support. Compared with the prior art, the gate valve rod protection device has the advantages of effectiveness in valve rod protection, avoidance of dust adhesion and rusting of the valve rod, simple structure, convenience in use and the like.
Description
Technical field
The present invention relates to a kind of gate valve correlation technique, especially relate to a kind of gate valve rod protective gear.
Background technique
At present in Coal Chemical Industry, open pit oil mining industry; the connection valve is arranged on the transfer line, since need of production, long-term open-air placement of some valves; do not take a kind of protective measure when producing; outside valve rod was directly exposed to, valve rod lacked protection, and threaded stem is stained with sand and dust; perhaps corroded by the rain and dew frost and snow; of long duration will getting rusty in this environment causes the closed difficulty of valve opening, serious even stuck can't opening.In order to solve this some row problems; general valve manufacturer spreads upon the valve rod appearance with lubricating grease; get off for a long time; can adhere to the foreign material such as sand and dust on the lubricating grease; when throttle down, easily cause valve stuck, damage valve rod and other part thereof, existing valve rod protecting device can't know that in use the leakage of stem packing and the nut locking that reply is leaked adjusts.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of valve rod of can effectively protecting for the defective that overcomes above-mentioned prior art existence, avoids valve rod to adhere to dirt sand, get rusty gate valve rod protective gear simple in structure, easy to use.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of gate valve rod protective gear; described gate valve comprises valve body; valve gap; Gland and support; described valve body comprises flashboard; the flashboard sealing surface; valve body sealing surface and valve rod; described valve gap comprises upper seal support; Packing seat; the formed stuffing box of filler and slip-knot bolt; described Gland comprises hold-down grid and filler pressing sleeve; described support comprises Stem Mut; bearing gland; lubricating cup and handwheel; it is characterized in that; described valve rod protecting device comprises the top valve rod protecting jacket; middle part valve rod protecting jacket and dirt-proof boot; described top valve rod protecting jacket is enclosed within on the valve rod that is positioned at Stem Mut top and with Stem Mut and is fixedly connected with; described dirt-proof boot is enclosed within on the valve rod protecting jacket of top, and described middle part valve rod protecting jacket is enclosed within and is positioned on the following valve rod of support.
Described middle part valve rod protecting jacket comprises middle and upper part valve rod protecting jacket and middle and lower part valve rod protecting jacket, and described middle and upper part valve rod protecting jacket is fixed on the support by fixing bolt, described middle and lower part valve rod protecting jacket and hold-down grid welding.
The longitudinal section of described middle and upper part valve rod protecting jacket is " 7 " shape, and the longitudinal section of described middle and lower part valve rod protecting jacket is " L " shape, and the bottom of described middle and upper part valve rod protecting jacket and the top of middle and lower part valve rod protecting jacket are connected.
Described valve rod top is provided with pointer and indicating arm, and described pointer is fixed on the indicating arm, and described indicating arm is connected with the valve rod top.
Compared with prior art, the present invention has the following advantages:
1, safety operation: this valve top is provided with pointer, indicating arm, and the easy-to-operat person observes the in working order lower position that opens and closes of valve.
2, protecting jacket matching mechanism: this valve top, middle part are provided with the protecting jacket matching mechanism, can guarantee the protecting jacket respective aligned, have also prolonged the working life of valve rod in the time of the protection valve rod.
3, it is convenient to change filler: this valve middle part valve rod protecting jacket makes the middle and lower part valve rod protecting jacket be connected with hold-down grid by Type of Welding, and filler is being changed at present protecting jacket and hold-down grid activity freely, and has enough gaps to make replacement, is convenient to dismounting.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of top of the present invention valve rod protecting jacket;
Fig. 3 is the structural representation of middle part of the present invention valve rod protecting jacket.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Embodiment
As shown in Figure 1; a kind of gate valve rod protective gear; described gate valve comprises valve body 1; valve gap; Gland and support; described valve body comprises flashboard; the flashboard sealing surface; valve body sealing surface and valve rod 5; described valve gap comprises upper seal support; Packing seat; the formed stuffing box 2 of filler and slip-knot bolt; described Gland comprises hold-down grid 3 and filler pressing sleeve; described support 7 comprises Stem Mut 8; bearing gland; lubricating cup and handwheel; described valve rod protecting device comprises top valve rod protecting jacket 9; middle part valve rod protecting jacket 4 and dirt-proof boot 11; described top valve rod protecting jacket is enclosed within on the valve rod that is positioned at Stem Mut top and with Stem Mut and is fixedly connected with; described dirt-proof boot is enclosed within on the valve rod protecting jacket of top, and described middle part valve rod protecting jacket is enclosed within and is positioned on the following valve rod of support.
Described middle part valve rod protecting jacket comprises middle and upper part valve rod protecting jacket and middle and lower part valve rod protecting jacket, and described middle and upper part valve rod protecting jacket is fixed on the support 7 by fixing bolt 6, described middle and lower part valve rod protecting jacket and hold-down grid welding.The longitudinal section of described middle and upper part valve rod protecting jacket is " 7 " shape, and the longitudinal section of described middle and lower part valve rod protecting jacket is " L " shape, and the bottom of described middle and upper part valve rod protecting jacket and the top of middle and lower part valve rod protecting jacket are connected.Described valve rod top is provided with pointer and indicating arm 10, and described pointer is fixed on the indicating arm, and described indicating arm is connected with the valve rod top.
Working principle:
Gate valve of the present invention is coupled together by handwheel or pneumatic, motor drive mechanism and valve usually; through after the Installation and Debugging; gate valve is opened closure and is implemented by valve rod; the keying degree that shows valve rod by the pointer on the indicating arm; this valve has also reduced the open-air corrosion of valve rod in the finished product valve, thereby reach valve rod is played protection, regulating action.
The present invention has following effect: owing to take such scheme; top valve rod protecting jacket 9 can protect valve rod to stretch out the part of locking nut; the fixing pointer of valve stem tip can the easy-to-operat person be observed the position that valve opens and closes under work; middle part valve rod protecting jacket 4 has effectively protected threaded stem to avoid valve rod to get rusty and the middle and lower part valve rod protecting jacket is connected with pressing plate; the integral body that middle and lower part valve rod protecting jacket and hold-down grid form; when changing; the protecting jacket activity freely up and down; and there are enough gaps to make replacement; this apparatus structure is simple, and is easy to use.
Claims (4)
1. gate valve rod protective gear; described gate valve comprises valve body; valve gap; Gland and support; described valve body comprises flashboard; the flashboard sealing surface; valve body sealing surface and valve rod; described valve gap comprises upper seal support; Packing seat; the formed stuffing box of filler and slip-knot bolt; described Gland comprises hold-down grid and filler pressing sleeve; described support comprises Stem Mut; bearing gland; lubricating cup and handwheel; it is characterized in that; described valve rod protecting device comprises the top valve rod protecting jacket; middle part valve rod protecting jacket and dirt-proof boot; described top valve rod protecting jacket is enclosed within on the valve rod that is positioned at Stem Mut top and with Stem Mut and is fixedly connected with; described dirt-proof boot is enclosed within on the valve rod protecting jacket of top, and described middle part valve rod protecting jacket is enclosed within and is positioned on the following valve rod of support.
2. a kind of gate valve rod protective gear according to claim 1; it is characterized in that; described middle part valve rod protecting jacket comprises middle and upper part valve rod protecting jacket and middle and lower part valve rod protecting jacket; described middle and upper part valve rod protecting jacket is fixed on the support by fixing bolt, described middle and lower part valve rod protecting jacket and hold-down grid welding.
3. a kind of gate valve rod protective gear according to claim 2; it is characterized in that; the longitudinal section of described middle and upper part valve rod protecting jacket is " 7 " shape; the longitudinal section of described middle and lower part valve rod protecting jacket is " L " shape, and the bottom of described middle and upper part valve rod protecting jacket and the top of middle and lower part valve rod protecting jacket are connected.
4. a kind of gate valve rod protective gear according to claim 1 is characterized in that, described valve rod top is provided with pointer and indicating arm, and described pointer is fixed on the indicating arm, and described indicating arm is connected with the valve rod top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110243309 CN102954265A (en) | 2011-08-23 | 2011-08-23 | Gate valve rod protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110243309 CN102954265A (en) | 2011-08-23 | 2011-08-23 | Gate valve rod protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102954265A true CN102954265A (en) | 2013-03-06 |
Family
ID=47763461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110243309 Pending CN102954265A (en) | 2011-08-23 | 2011-08-23 | Gate valve rod protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102954265A (en) |
-
2011
- 2011-08-23 CN CN 201110243309 patent/CN102954265A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202252230U (en) | Protective device for gate valve rod | |
| CN204739311U (en) | Take gate valve of gauge rod | |
| CN102954265A (en) | Gate valve rod protection device | |
| CN205715756U (en) | A kind of novel anti-gray valve seat construction of Coal Chemical Industry ball valve | |
| CN202612826U (en) | Control valve oil seal device | |
| CN202215838U (en) | Valve rod protecting device | |
| CN205226423U (en) | Ore -pulp valve | |
| CN203309247U (en) | Spring full lift safety valve | |
| CN102563076A (en) | Shaft seal device | |
| CN206816222U (en) | A kind of valve leakage out of steam system controller | |
| CN204477478U (en) | A kind of floating ball valve | |
| CN202481959U (en) | Automatic oil feeding protection device of adjusting screw rod of tower crane attaching rod | |
| CN202531973U (en) | All-weather pneumatic manual conversion mechanism | |
| CN202418685U (en) | Rubber seal all-welded buried root ball valve | |
| CN201672079U (en) | Soft seal gate valve | |
| CN204852407U (en) | High temperature high pressure sluice valve | |
| CN203797145U (en) | Special sheath for valve rod | |
| CN215635254U (en) | Low-temperature stop valve | |
| CN202834376U (en) | Valve lead screw cleaning protection device | |
| CN208107296U (en) | A kind of valve rod protective device | |
| CN201763983U (en) | Coupling dynamic gate valve | |
| CN207813576U (en) | A kind of production wellhead gate valve | |
| CN211875110U (en) | High-temperature high-pressure integrated straight-flow stop valve | |
| CN206973043U (en) | A kind of well mouth sampling valve protection device | |
| CN203363217U (en) | Natural gas soft seal stop valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130306 |