CN202252230U - Protective device for gate valve rod - Google Patents
Protective device for gate valve rod Download PDFInfo
- Publication number
- CN202252230U CN202252230U CN2011203091644U CN201120309164U CN202252230U CN 202252230 U CN202252230 U CN 202252230U CN 2011203091644 U CN2011203091644 U CN 2011203091644U CN 201120309164 U CN201120309164 U CN 201120309164U CN 202252230 U CN202252230 U CN 202252230U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- protecting jacket
- valve
- gate
- rod protecting
- 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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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The utility model relates to a protective device for a gate valve rod, wherein a gate valve comprises a valve body, a valve cover, a packing gland and a support. The valve body comprises a gate board, a gate board sealing surface, a valve body sealing surface and a valve rod. The valve cover comprises an upper sealing seat, a packing gasket, a packing box formed by packing and a slipknot bolt. The packing gland comprises a packing pressing board and a packing pressing sleeve. The support comprises a valve rod nut, a bearing pressing cover, an oil cup and a hand wheel. The valve rod protective device comprises an upper valve rod protective sleeve, a middle valve rod protective sleeve and a dustproof sleeve, the upper valve rod protective sleeve is sleeved on the valve rod on the upper portion of the valve rod nut and fixedly connected with the valve rod nut, the dustproof sleeve is sleeved on the upper valve rod protective sleeve, and the middle valve rod protective sleeve is sleeved on the valve rod below the support. Compared with the prior art, the protective device for the gate valve rod can effectively protect the valve rod, prevents the valve rod from getting rusty due to attachment of dust and dirt and has the advantages of being simple in structure, convenient to use and the like.
Description
Technical field
The utility model relates to a kind of gate valve correlation technique, especially relates to a kind of protective gear that is used for gate valve rod.
Background technique
In Coal Chemical Industry, open pit oil mining industry, the connection valve is arranged all on the transfer line at present, because production needs; Long-term open-air placement of some valves do not taked a kind of protective measure, outside valve rod is directly exposed in the time of production; Valve rod lacks protection, and threaded stem is stained with sand and dust, is 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 foreign material such as sand and dust on the lubricating grease, when throttle down, be prone to cause valve stuck, damage valve rod and other part thereof, existing valve rod protective gear can't know the leakage of stem packing and the nut locking adjustment that reply is leaked in use.
The model utility content
The purpose of the utility model is exactly for the defective that overcomes above-mentioned existing technology existence a kind of valve rod of can protecting effectively to be provided, and avoids valve rod to adhere to dirt sand, get rusty the protective gear that is used for gate valve rod simple in structure, easy to use.
The purpose of the utility model can realize through following technological scheme:
A kind of protective gear that is used for gate valve rod; Described gate valve comprises valve body, valve gap, Gland and support; Described valve body comprises flashboard, flashboard sealing surface, valve body sealing surface and valve rod, and described valve gap comprises upper seal support, Packing seat, the formed stuffing box of filler and slip-knot bolt, and described Gland comprises hold-down grid and filler gland; Described support comprises Stem Mut, bearing gland, lubricating cup and handwheel; It is characterized in that described valve rod protective gear comprises 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; 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 on the valve rod that is positioned at below the 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 through 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 utlity model has following advantage:
1, safety operation: this valve top is provided with pointer, indicating arm, and the easy-to-operat person observes the position that valve opens and closes down in working order.
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 middle and lower part valve rod protecting jacket be connected with hold-down grid through Type of Welding, and filler is being changed at present protecting jacket and hold-down grid activity freely, and has enough gaps to make the filler replacing, is convenient to dismounting.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of the top valve rod protecting jacket of the utility model;
Fig. 3 is the structural representation of the middle part valve rod protecting jacket of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
As shown in Figure 1; A kind of protective gear that is used for gate valve rod; Described gate valve comprises valve body 1, valve gap, Gland and support, and described valve body comprises flashboard, flashboard sealing surface, valve body sealing surface and valve rod 5, and 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 gland; Described support 7 comprises Stem Mut 8, bearing gland, lubricating cup and handwheel, and described valve rod protective gear comprises top valve rod protecting jacket 9, middle part valve rod protecting jacket 4 and dirt-proof boot 11, and 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; 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 on the valve rod that is positioned at below the 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 through 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:
The utility model gate valve 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 through valve rod; Show the keying degree of valve rod through 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 utlity model has following effect: owing to take such scheme; The part that top valve rod protecting jacket 9 can protect valve rod to stretch out 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, and middle part valve rod protecting jacket 4 has protected threaded stem to avoid valve rod to get rusty effectively and 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 and has enough gaps that filler is changed freely up and down; This apparatus structure is simple, and is easy to use.
Claims (4)
1. protective gear that is used for gate valve rod; Described gate valve comprises valve body, valve gap, Gland and support; Described valve body comprises flashboard, flashboard sealing surface, valve body sealing surface and valve rod, and described valve gap comprises upper seal support, Packing seat, the formed stuffing box of filler and slip-knot bolt, and described Gland comprises hold-down grid and filler gland; Described support comprises Stem Mut, bearing gland, lubricating cup and handwheel; It is characterized in that described valve rod protective gear comprises 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; 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 on the valve rod that is positioned at below the support.
2. a kind of protective gear that is used for gate valve rod 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 through fixing bolt, described middle and lower part valve rod protecting jacket and hold-down grid welding.
3. a kind of protective gear that is used for gate valve rod 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 protective gear that is used for gate valve rod 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 |
|---|---|---|---|
| CN2011203091644U CN202252230U (en) | 2011-08-23 | 2011-08-23 | Protective device for gate valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203091644U CN202252230U (en) | 2011-08-23 | 2011-08-23 | Protective device for gate valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202252230U true CN202252230U (en) | 2012-05-30 |
Family
ID=46113473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203091644U Expired - Fee Related CN202252230U (en) | 2011-08-23 | 2011-08-23 | Protective device for gate valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202252230U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813001A (en) * | 2016-11-10 | 2017-06-09 | 林之铠 | Tool keying situation indicates the gate valve of function |
| CN111237495A (en) * | 2020-02-25 | 2020-06-05 | 四川精控阀门制造有限公司 | Flat gate valve filler pre-tightening structure and flat gate valve |
-
2011
- 2011-08-23 CN CN2011203091644U patent/CN202252230U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813001A (en) * | 2016-11-10 | 2017-06-09 | 林之铠 | Tool keying situation indicates the gate valve of function |
| CN106813001B (en) * | 2016-11-10 | 2018-12-18 | 奉化市中新阀门有限公司 | Has the gate valve of opening and closing situation instruction function |
| CN111237495A (en) * | 2020-02-25 | 2020-06-05 | 四川精控阀门制造有限公司 | Flat gate valve filler pre-tightening structure and flat gate valve |
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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 |
Granted publication date: 20120530 Termination date: 20140823 |
|
| EXPY | Termination of patent right or utility model |