CN207599129U - Regulating valve rod protective device - Google Patents
Regulating valve rod protective device Download PDFInfo
- Publication number
- CN207599129U CN207599129U CN201721796859.3U CN201721796859U CN207599129U CN 207599129 U CN207599129 U CN 207599129U CN 201721796859 U CN201721796859 U CN 201721796859U CN 207599129 U CN207599129 U CN 207599129U
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- CN
- China
- Prior art keywords
- valve rod
- gland
- bonnet
- regulating valve
- cover
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- 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.)
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Abstract
The utility model is related to regulating valve technical fields; more particularly to a kind of regulating valve rod protective device; the straight travel regulating valve valve rod protecting device being made of gland, connect cover, outer protective cover, valve rod, bonnet, valve rod connecting component, push rod etc.; gland is equipped with external part; the lower end of valve rod section of stretching out can be protected; connect cover lower end extension protects the valve rod for exposing gland in short stroke; and it is threadedly coupled with valve rod; hexagon thin nut in alternative traditional structure prevents the relative motion between valve rod connecting component and valve rod；Outer protective cover can carry out long stroke regulating valve rod total travel protection, and three-layer protection structure, which can be realized, protects the total travel of valve rod without dead angle, and have the advantages that process simple, motion stability.
Description
Technical field
The utility model is related to regulating valve technical fields more particularly to a kind of regulating valve rod protective device, the device to fit
For in pollution, the straight travel regulating valve to work in corrosive environment, have simple processing, motion stability, three layers protected without dead angle
The features such as shield.
Background technology
As shown in figure 3, the push rod 7 and valve rod 1 of traditional regulating valve are also to be connected by valve rod connecting component 6, valve rod
It is fixed between connecting component 6 and valve rod 1 using hexagon thin nut 8, gland 3 is without elongated portion.Therefore, in the complete of regulating valve
In stroke, valve rod 1 is exposed in environment always, easily by environmental pollution, corrosion or even damage.
Utility model content
The technical problems to be solved in the utility model is：In order to which the utility model provides a kind of regulating valve rod protection dress
It puts, three-layer protection structure, which can be realized, protects the total travel of valve rod without dead angle, and simple, motion stability excellent with processing
Point.
Technical solution is used by the utility model solves its technical problem：A kind of regulating valve rod protective device, packet
Valve rod, the bonnet, of regulating valve, gland, valve rod connecting component and push rod are included, the valve rod is threaded through on bonnet, filler
Gland is sleeved on valve rod, and the outer circle of the lower end of gland is inserted into the endoporus of bonnet, and gland from bonnet, upper end
Lower end outer circle connected with the inner hole thread of bonnet, the endoporus of gland and the outer circle of valve rod match, and valve rod is upper
End is fixedly connected by valve rod connecting component with push rod, and push rod can be made back and forth by driving force with ovable valve stem in gland
Movement.Gland is protected as the first layer of valve rod.
For the ease of the setting second layer and third layer protection, gland top exposes to bonnet, gland top
With gland inverted T-shaped platform, the gland inverted T-shaped platform lower end is stuck in the top of bonnet, endoporus.
Regulating valve rod protective device further includes connect cover and outer protective cover, and connect cover upper end endoporus is equipped with screw thread,
It is combined on valve rod, for connect cover upper end inner hole sleeve on gland inverted T-shaped platform, the outer circle of connect cover is connect cover inverted T-shaped platform, is made
The second layer for valve rod is protected.The outer protective cover is sleeved on outside connect cover, and the lower end of outer protective cover is fixedly connected on gland
On the table top of inverted T-shaped platform, the upper end of outer protective cover has seam allowance, and the internal diameter of seam allowance is less than the internal diameter inside outer protective cover, described
The endoporus of seam allowance and the outer circle on connect cover inverted T-shaped platform top match, the outer circle and outer protective cover of the table top of connect cover inverted T-shaped platform
Endoporus match.Third layer as valve rod is protected.
The beneficial effects of the utility model are the regulating valve rod protective devices of the utility model, by gland, connection
The straight travel regulating valve valve rod protecting device of the compositions such as cover, outer protective cover, valve rod, bonnet, valve rod connecting component, push rod, is filled out
Expect that gland is equipped with external part, the lower end of valve rod section of stretching out can be protected, connect cover lower end extension in short stroke to exposing filler
The valve rod of gland is protected, and is threadedly coupled with valve rod, and the hexagon thin nut in alternative traditional structure prevents valve
Relative motion between bar connecting component and valve rod；Outer protective cover can to long stroke regulating valve rod carry out total travel protection, three
Layer protection structure, which can be realized, protects the total travel of valve rod without dead angle, and have the advantages that process simple, motion stability.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structure diagram of the utility model regulating valve rod protective device.
Fig. 2 is the partial enlarged view of the utility model regulating valve rod protective device.
Fig. 3 is the structure diagram of traditional regulating valve rod protective device.
In figure：1st, valve rod, 2, bonnet, 3, gland, 31, the table top of gland inverted T-shaped platform, 4, connect cover, 41, connection
The table top of cover inverted T-shaped platform, 5, outer protective cover, 51, seam allowance, 6, valve rod connecting component, 7, push rod, 8, hexagon thin nut.
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows the composition related with the utility model.
As illustrated in fig. 1 and 2, be the utility model optimum embodiment, a kind of regulating valve rod protective device, including valve rod 1,
Bonnet, 2, gland 3, valve rod connecting component 6 and the push rod 7 of regulating valve, valve rod 1 are threaded through on bonnet, 2, gland 3
It is sleeved on valve rod 1, the outer circle of the lower end of gland 3 is inserted into the endoporus of bonnet, 2, and gland 3 from 2 upper end of bonnet,
Lower end outer circle connected with the inner hole thread of bonnet, 2, the endoporus of gland 3 and the outer circle of valve rod 1 match, and valve rod 1
Upper end be fixedly connected by valve rod connecting component 6 with push rod 7, push rod 7 can be with ovable valve stem 1 in gland by driving force
It pumps in 3.3 top of gland exposes to bonnet, 2, and 3 top of gland has gland inverted T-shaped platform, pressure
Lid inverted T-shaped platform lower end is stuck in the top of 2 endoporus of bonnet,.Gland 3 be equipped with extension (table top 31 of gland inverted T-shaped platform with
On part), extension endoporus and 1 outer circle of valve rod coordinate, and can protect the lower end of 1 section of stretching out of valve rod, the first layer as valve rod 1
Protection；
Regulating valve rod protective device further includes connect cover 4 and outer protective cover 5, and 4 upper end endoporus of connect cover is equipped with screw thread, rotation
Together in that on valve rod 1, can be tightened by top circumferential apertures by tooling and fix valve rod 1 and valve rod connecting component 6, valve rod is prevented
Connecting component 6 and the relative motion of valve rod 1,
For 4 upper end inner hole sleeve of connect cover on gland inverted T-shaped platform, connect cover 4 is in connect cover inverted T-shaped mesa-shaped, and connect cover 4 is stretched
The length of long part (part of more than 41 table top of connect cover inverted T-shaped platform) exposes bonnet, 2 by stroke of regulating valve and valve rod 1
Length determines, the valve rod 1 that expose gland 3 in short stroke can be protected, and the second layer as valve rod 1 is protected, and
And 5 motion stability of outer protective cover can be made.
Outer protective cover 5 is sleeved on outside connect cover 4, and the lower end of outer protective cover 5 is fixedly connected on the table top of gland inverted T-shaped platform
On 31, the upper end of outer protective cover 5 has a seam allowance 51, and the internal diameter of seam allowance 51 is less than the internal diameter inside outer protective cover 5, seam allowance 51 it is interior
The outer circle on hole and connect cover inverted T-shaped platform top matches, the outer circle of the table top 41 of connect cover inverted T-shaped platform and outer protective cover 5 it is interior
Hole matches.5 upper and lower end endoporus of outer protective cover coordinates respectively with 4 upper and lower end outer circle of connect cover, and 5 length of outer protective cover is by adjusting
The stroke of valve and the length of connect cover 4 determine, for long stroke regulating valve, are more than when connect cover 4 up moves to its lower face
During 3 upper surface of gland, outer protective cover 5 can play a protective role, and the third layer as valve rod 1 is protected.The device both led to
It crosses connect cover 4 and has locked valve rod connecting component 6 and valve rod 1, and effectively prevent between valve rod connecting component 6 and valve rod 1
Relative motion, three-layer protection structure, which can be realized, protects the total travel of valve rod 1 without dead angle, and simple, action is steady with processing
The advantages of determining.
Using the above-mentioned desirable embodiment according to the utility model as enlightenment, pass through above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item is real
The content being not limited to novel technical scope on specification, it is necessary to which its technology is determined according to right
Property range.
Claims (3)
1. a kind of regulating valve rod protective device, it is characterised in that：Including valve rod (1), the bonnet, (2) of regulating valve, filler pressure
Lid (3), valve rod connecting component (6) and push rod (7), the valve rod (1) are threaded through on bonnet, (2), and gland (3) is sleeved on
On valve rod (1), the outer circle of the lower end of gland (3) is inserted into the endoporus of bonnet, (2), and filler pressure from bonnet, (2) upper end
The lower end outer circle of lid (3) is connected with the inner hole thread of bonnet, (2), and the endoporus of gland (3) and the outer circle of valve rod (1) match
It closes, and the upper end of valve rod (1) is fixedly connected by valve rod connecting component (6) with push rod (7), push rod (7) can by driving force
Band ovable valve stem (1) is reciprocating in gland (3).
2. regulating valve rod protective device as described in claim 1, it is characterised in that：Gland (3) top is exposed
In bonnet, (2), gland (3) top has gland inverted T-shaped platform, and the gland inverted T-shaped platform lower end is stuck in bonnet, (2)
The top in hole.
3. regulating valve rod protective device as claimed in claim 2, it is characterised in that：The regulating valve rod protective device is also
Including connect cover (4) and outer protective cover (5),
Connect cover (4) upper end endoporus is equipped with screw thread, is combined on valve rod (1), and connect cover (4) upper end inner hole sleeve is mounted in gland
On inverted T-shaped platform, the outer circle of connect cover (4) is connect cover inverted T-shaped platform,
The outer protective cover (5) is sleeved on connect cover (4) outside, and the lower end of outer protective cover (5) is fixedly connected on gland inverted T-shaped platform
Table top (31) on, the upper end of outer protective cover (5) has a seam allowance (51), and it is internal that the internal diameter of seam allowance (51) is less than outer protective cover (5)
Internal diameter, the endoporus of the seam allowance (51) and the outer circle on connect cover inverted T-shaped platform top match, the table top of connect cover inverted T-shaped platform
(41) outer circle and the endoporus of outer protective cover (5) matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721796859.3U CN207599129U (en) | 2017-12-21 | 2017-12-21 | Regulating valve rod protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721796859.3U CN207599129U (en) | 2017-12-21 | 2017-12-21 | Regulating valve rod protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207599129U true CN207599129U (en) | 2018-07-10 |
Family
ID=62767429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721796859.3U Active CN207599129U (en) | 2017-12-21 | 2017-12-21 | Regulating valve rod protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207599129U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032402A (en) * | 2020-09-15 | 2020-12-04 | 国网山东省电力公司平阴县供电公司 | Gate valve rod protective sleeve |
-
2017
- 2017-12-21 CN CN201721796859.3U patent/CN207599129U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032402A (en) * | 2020-09-15 | 2020-12-04 | 国网山东省电力公司平阴县供电公司 | Gate valve rod protective sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ma Yushan Inventor after: Zhou Pengbo Inventor after: Xu Xilong Inventor after: Zhao Wenbao Inventor after: Ma Jiaqing Inventor before: Ma Yushan Inventor before: Zhou Pengbo Inventor before: Xu Xilong Inventor before: Zhao Wenbao Inventor before: Ma Jiaqing |