CN208565727U - A kind of upper seal support anti-loose structure of gate valve cover - Google Patents
A kind of upper seal support anti-loose structure of gate valve cover Download PDFInfo
- Publication number
- CN208565727U CN208565727U CN201821270064.3U CN201821270064U CN208565727U CN 208565727 U CN208565727 U CN 208565727U CN 201821270064 U CN201821270064 U CN 201821270064U CN 208565727 U CN208565727 U CN 208565727U
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- seal support
- upper seal
- valve
- valve deck
- locking
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Abstract
The utility model discloses a kind of upper seal support anti-loose structures of gate valve cover, including valve deck assembly, valve deck, upper seal support, locking item and valve rod, valve deck assembly bottom end is fixedly connected with valve deck, the valve deck bottom center is equipped with groove, the bonnet central of the groove upper end, which runs through, is equipped with through-hole, the through-hole bottom end is by being threaded with upper seal support, upper seal support bottom end end face is equipped with open slot, locking item is equipped in the open slot, described locking one end is fixedly connected on groove inner wall, valve rod is movably installed in the upper seal support centre bore, valve deck is run through in the valve rod upper end, and valve rod upper end is threadedly attached on valve deck assembly.The utility model is simple and reasonable, easy for installation, and low manufacture cost is practical.
Description
Technical field
The utility model relates to valve fields, are specifically related to a kind of upper seal support anti-loose structure of gate valve cover.
Background technique
Gate valve is most common truncation class valve in industrial pipeline.Such valve has flow resistance small, with medium model
It encloses extensively, opens and closes the advantages that relatively labor-saving compared to shut-off valve, thus be widely used.The upper seal support main function of gate valve is:
When valve is mounted on pipeline, if necessary to be replaced online to valve stem packing, then needing to make valve as standard-sized sheet position
It sets, is sealed between valve rod and upper seal support, so that medium be made to be not leak into the external world.Upper seal support and valve deck are using screw thread at present
Connection, and spot welding is taken to prevent upper seal support from loosening (see Fig. 4, upper seal support bottom end outer ring and valve deck carry out spot welding), when
When client centainly requires upper seal support using certain welding performances bad material, spot welding can allow upper seal support to crack, and lead
Leakage is caused, for this purpose, it is proposed that a kind of upper seal support anti-loose structure of gate valve cover.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of upper seal support anti-loose structures of gate valve cover, solve
The problem of upper seal support spot welding fixation can crack.
In order to solve the above technical problems, the utility model is the following technical schemes are provided: a kind of upper seal support of gate valve cover
Anti-loose structure, including valve deck assembly, valve deck, upper seal support, locking item and valve rod, valve deck assembly bottom end are fixedly connected with valve
Lid, the valve deck bottom center are equipped with groove, and the bonnet central of the groove upper end, which runs through, is equipped with through-hole, the through-hole bottom end by
It is threaded with upper seal support, upper seal support bottom end end face is equipped with open slot, is equipped with locking item, institute in the open slot
It states locking one end to be fixedly connected on groove inner wall, valve rod, the valve rod is movably installed in the upper seal support centre bore
Valve deck is run through in upper end, and valve rod upper end is threadedly attached on valve deck assembly.
On the basis of above scheme, the open slot be equipped with it is multiple, multiple open slots are evenly distributed on upper seal support
On the end face of bottom end.
On the basis of above scheme, the locking item be equipped with it is multiple, multiple locking items are separately mounted to multiple openings
In slot, and the outer end of multiple locking items is respectively fixedly connected on groove inner wall.
On the basis of above scheme, the locking item is welded and fixed with groove inner wall, and the material of locking item and valve deck
It is identical.
On the basis of above scheme, cooperation is slidingly sealed between the valve rod and upper seal support.
The utility model has the beneficial effect that a kind of anti-untwisting of the upper seal support of gate valve cover compared with prior art
Structure improves the spot welding fixed form between existing upper seal support and valve deck, using multiple locking items to upper seal support into
Row fixation is locking, does not need directly to carry out spot welding to upper seal support and valve deck, and avoiding upper seal support can be because of material weldability
Can be bad and the problem of crack, improve the sealing performance of upper seal support, the utility model is simple and reasonable, installation side
Just, low manufacture cost, it is practical.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the upper seal support anti-loose structure of gate valve cover of the utility model；
Fig. 2 is a kind of lower end partial enlargement structural representation of the upper seal support anti-loose structure of gate valve cover of the utility model
Figure；
Fig. 3 is a kind of bottom end bottom view of the upper seal support anti-loose structure of gate valve cover of the utility model；
Fig. 4 is that a kind of existing upper seal support of the upper seal support anti-loose structure of gate valve cover of the utility model and valve deck weld
Structural schematic diagram.
Figure label are as follows: 1- valve deck assembly, 2- valve deck, 201- groove, 3- upper seal support, 301- open slot, the locking item of 4-,
5- valve rod, 6- valve stem packing.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
In the description of the present invention, it should be understood that term " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings is merely for convenience of description the utility model, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.
Referring to figs. 1 to known to Fig. 4: a kind of upper seal support anti-loose structure of gate valve cover, including valve deck assembly 1, valve deck 2,
Upper seal support 3, locking item 4 and valve rod 5,1 bottom end of valve deck assembly are fixedly connected with valve deck 2, and 2 bottom center of valve deck is set
Fluted 201,2 center of valve deck of 201 upper end of groove, which is run through, is equipped with through-hole, and the through-hole bottom end is upper close by being threaded with
Seat 3 is sealed, the 3 bottom end end face of upper seal support is equipped with open slot 301, and locking item 4 is equipped in the open slot 301, described anti-
Loose 4 one end of item is fixedly connected on 201 inner wall of groove, is movably installed with valve rod 5, the valve in 3 centre bore of upper seal support
Valve deck 2 is run through in 5 upper end of bar, and 5 upper end of valve rod is threadedly attached on valve deck assembly 1.
The open slot 301 be equipped with it is multiple, multiple open slots 301 are evenly distributed on 3 bottom end end face of upper seal support,
Open slot 301 is easily installed locking item 4；The locking item 4 be equipped with it is multiple, multiple locking items 4 are separately mounted to multiple open
In mouth slot 301, and the outer end of multiple locking items 4 is respectively fixedly connected on 201 inner wall of groove, locking item 4 and open slot 301
Mutual cooperation can prevent upper seal support 3 from loosening；The locking item 4 is welded and fixed with 201 inner wall of groove, and locking item 4 with
The material of valve deck 2 is identical, and identical material has good welding performance；It is slidingly sealed between the valve rod 5 and upper seal support 3
Cooperation, is slidingly sealed and valve rod 5 is both facilitated to move in upper seal support 3, while also having sealing performance.
The principles of the present invention and advantage: a kind of upper seal support anti-loose structure of gate valve cover, to existing upper sealing
The anti-loose structure of seat 3 improves, and carries out locking by the way that multiple locking items 4 are arranged, is not needed to upper seal support to upper seal support 3
It is locking that spot welding is directly carried out between 3 and valve deck 2, having prevented upper seal support 3 can cause to generate because material welding performance is bad
Crackle influences the problem of upper seal support 3 seals, and when assembling, after upper seal support 3 is tightened on valve deck 2, locking item 4 is installed
Into open slot 301, then the outer end of locking item 4 and the inner wall of 2 upper groove 201 of valve deck are welded, the use of locking item 4
Material identical with valve deck 2 has good welding performance, and locking item 4 can prevent upper seal support 3 from loosening, and seals in guarantee
The leakproofness of seat 3, improves safety when online replacement 3 upper end valve stem packing 6 of upper seal support, and the utility model structure is simple
Rationally, anti-loosing effect is good, will not influence the sealing performance of upper seal support 3, and low manufacture cost is suitble to promote the use of.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (5)
1. a kind of upper seal support anti-loose structure of gate valve cover, including it is valve deck assembly (1), valve deck (2), upper seal support (3), locking
Item (4) and valve rod (5), it is characterised in that: valve deck assembly (1) bottom end is fixedly connected with valve deck (2), valve deck (2) bottom
End center is equipped with groove (201), and valve deck (2) center of groove (201) upper end, which is run through, is equipped with through-hole, the through-hole bottom end by
It is threaded with upper seal support (3), upper seal support (3) the bottom end end face is equipped with open slot (301), the open slot
(301) locking item (4) are equipped in, described locking item (4) one end is fixedly connected on groove (201) inner wall, the upper seal support
(3) it is movably installed in centre bore valve rod (5), valve deck (2) are run through in valve rod (5) upper end, and valve rod (5) upper end passes through spiral shell
Line is connected on valve deck assembly (1).
2. a kind of upper seal support anti-loose structure of gate valve cover according to claim 1, which is characterized in that the open slot
(301) be equipped with it is multiple, multiple open slots (301) are evenly distributed on upper seal support (3) bottom end end face.
3. a kind of upper seal support anti-loose structure of gate valve cover according to claim 2, which is characterized in that the locking item
(4) it is equipped with multiple, multiple locking items (4) are separately mounted in multiple open slots (301), and multiple locking items (4)
Outer end is respectively fixedly connected on groove (201) inner wall.
4. a kind of upper seal support anti-loose structure of gate valve cover according to claim 1, which is characterized in that the locking item
(4) it is welded and fixed with groove (201) inner wall, and locking item (4) is identical as the material of valve deck (2).
5. a kind of upper seal support anti-loose structure of gate valve cover according to claim 1, which is characterized in that the valve rod
(5) cooperation is slidingly sealed between upper seal support (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821270064.3U CN208565727U (en) | 2018-08-08 | 2018-08-08 | A kind of upper seal support anti-loose structure of gate valve cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821270064.3U CN208565727U (en) | 2018-08-08 | 2018-08-08 | A kind of upper seal support anti-loose structure of gate valve cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208565727U true CN208565727U (en) | 2019-03-01 |
Family
ID=65449984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821270064.3U Active CN208565727U (en) | 2018-08-08 | 2018-08-08 | A kind of upper seal support anti-loose structure of gate valve cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208565727U (en) |
-
2018
- 2018-08-08 CN CN201821270064.3U patent/CN208565727U/en active Active
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