CN206860915U - Non-lift formula valve rod gate valve - Google Patents
Non-lift formula valve rod gate valve Download PDFInfo
- Publication number
- CN206860915U CN206860915U CN201720653520.1U CN201720653520U CN206860915U CN 206860915 U CN206860915 U CN 206860915U CN 201720653520 U CN201720653520 U CN 201720653520U CN 206860915 U CN206860915 U CN 206860915U
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- China
- Prior art keywords
- valve rod
- valve
- hold
- down grid
- hole
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Abstract
The utility model discloses a kind of non-lift formula valve rod gate valve,The bottom of first valve rod is connected with flexible disc,Flexible disc moves in the direction of the vertical valve flowing channel of valve body interior edge,Valve rod locking nut is arranged with first valve rod,The outer wall of valve rod locking nut is provided with retaining ring,The upper end of first valve rod is connected with the lower end of the second valve rod,O-ring seal is set in the bottom of the second valve rod,Bearing is provided between second valve rod and bonnet,Pad is provided between the upper surface of bonnet and the lower surface of support,Packing seat,Flexible graphite packing,Work out graphite packing,Filler pressing sleeve,Hold-down grid is sequentially sleeved on the second valve rod from top to bottom,Through hole is provided with hold-down grid,One end of eyelet bolt is fixed through the through hole on hold-down grid and by movable joint nut,The other end of eyelet bolt is fixed on the lower section of hold-down grid by bearing pin,The utility model effectively increases the sealing of valve,Add the service life of valve.
Description
Technical field
It the utility model is related to gate valve field, and in particular to a kind of non-lift formula valve rod gate valve.
Background technology
The difference of stem movement situation when being opened and closed according to gate valve, gate valve and two kinds of clearly demarcated rod-type and blind rod type.Blind rod type lock
Valve threaded stem valve rod in stem internal and screw-internal thread fit on flashboard, Open valve is only rotated without oscilaltion, flashboard
Then rise along threaded stem.The shortcomings that hidden-rod gate valve is the unlatching that valve can not be judged according to valve rod situation, at gland
It can leak.
The content of the invention
In order to solve the above problems, the utility model provides a kind of non-lift formula valve rod gate valve.
The technical solution of the utility model is：A kind of non-lift formula valve rod gate valve, the bottom of the first valve rod and elastic lock
Plate is connected, and flexible disc moves in the direction of the vertical valve flowing channel of valve body interior edge, and valve rod locking screw is arranged with the first valve rod
Mother, the outer wall of valve rod locking nut are provided with retaining ring, and the upper end of the first valve rod is connected with the lower end of the second valve rod, O-shaped sealing
Snare is located at the bottom of the second valve rod, and bearing, the upper surface of bonnet and the lower end of support are provided between the second valve rod and bonnet
Be provided with pad between face, Packing seat, flexible graphite packing, establishment graphite packing, filler pressing sleeve, hold-down grid from top to bottom according to
It is secondary to be set on the second valve rod, be provided with through hole on hold-down grid, one end of eyelet bolt through the through hole on hold-down grid simultaneously
Fixed by movable joint nut, the other end of eyelet bolt is fixed on the lower section of hold-down grid by bearing pin.
Further, through hole is provided with the retaining ring, retaining ring is fixed on valve rod locking screw by bolt through through hole
On female outer wall.
Further, the Packing seat, flexible graphite packing, establishment graphite packing are successively set on support under upper
Between the outside wall surface of medial surface and the second valve rod.
Further, second valve rod is vertically arranged with scale plate, is horizontally arranged with tuning drive gear, and tuning drive gear points to
Scale plate, tuning drive gear move along the second valve rod direction.
Further, the O-ring seal at least 2.
The beneficial effects of the utility model are：The utility model improves the sealing of valve, adds the use of valve
Life-span.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged drawing of valve rod locking nut opening position.
Fig. 3 is the enlarged drawing at the second stem position.
Embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings, the present embodiment is not formed to this
The limitation of utility model.
As shown in figure 1, a kind of non-lift formula valve rod gate valve, including valve body 1, valve seat 2, flexible disc 3, the first valve rod 4, valve
Stem jam nut 5, retaining ring 6, bolt 7, the second valve rod 8, O-ring seal 9, bonnet 10, bearing 11, support 12, pad 13, fill out
Backing strap 14, flexible graphite packing 15, establishment graphite packing 16, filler pressing sleeve 17, hold-down grid 18, eyelet bolt 19, movable joint spiral shell
Mother 20, scale plate 21, tuning drive gear 22.
The bottom of first valve rod 4 is connected with flexible disc 3, and flexible disc 3 is in the side of the vertical valve flowing channel of the interior edge of valve body 1
To movement, valve rod locking nut 5 is arranged with the first valve rod 4, as shown in Fig. 2 the outer wall of valve rod locking nut 5 is provided with locking
Ring 6, through hole is provided with retaining ring 6, retaining ring 6 is fixed on the outer wall of valve rod locking nut 5 by bolt 7 through through hole.Drive
Dynamic first valve rod 4 rotates, and flexible disc 3 vertically makees elevating movement.
As shown in figure 3, the upper end of the first valve rod 4 is connected with the lower end of the second valve rod 8, at least 29 sets of O-ring seals
The bottom of the second valve rod 8 is located at, to prevent medium from being leaked out at bonnet 10.It is provided between the second valve rod 8 and bonnet 10
Bearing 11, pad 13, the medial surface of support 11 and the second valve are provided between the upper surface of bonnet 10 and the lower surface of support 12
Packing seat 14, flexible graphite packing 15, establishment graphite packing 16 are sequentially provided between the outside wall surface of bar 8 from top to bottom, is being worked out
The upper surface of graphite packing 16 is provided with filler pressing sleeve 17, and the upper surface of filler pressing sleeve 17 is provided with hold-down grid 18, Packing seat 14,
Flexible graphite packing 15, establishment graphite packing 16, filler pressing sleeve 17, hold-down grid 18 are sequentially sleeved at the second valve rod under upper
On 8.Through hole is provided with hold-down grid 18, one end of eyelet bolt 19 is through the through hole on hold-down grid 18 and by movable joint nut
20 fix, and the other end of eyelet bolt 19 is fixed on the lower section of hold-down grid 18 by bearing pin.Filled out by the regulation of eyelet bolt 19
Expect the consolidation degree of filler between pressing plate 18 and Packing seat 14, good sealing effectiveness is served to non-lift formula valve rod gate valve.
Second valve rod 8 is vertically arranged with scale plate 21, is horizontally arranged with tuning drive gear 22, and tuning drive gear 22 is along the second valve rod
8 directions are moved, and tuning drive gear 22 points to scale plate 21, and the height of the lifting of flexible disc 3 can be monitored by tuning drive gear.
It is described above, only it is preferred embodiment of the present utility model, is not used in limitation the utility model, this area skill
Art personnel can make various modifications or equivalent substitution to the utility model in essence of the present utility model and protection domain,
This modification or equivalent substitution also should be regarded as in the protection domain of technical solutions of the utility model.
Claims (5)
- A kind of 1. non-lift formula valve rod gate valve, it is characterised in that：The bottom of first valve rod is connected with flexible disc, and flexible disc exists The direction of the vertical valve flowing channel of valve body interior edge is moved, and valve rod locking nut is arranged with the first valve rod, valve rod locking nut Outer wall is provided with retaining ring, and the upper end of the first valve rod is connected with the lower end of the second valve rod, and O-ring seal is set in the second valve rod Bottom, bearing is provided between the second valve rod and bonnet, pad is provided between the upper surface of bonnet and the lower surface of support, fills out Backing strap, flexible graphite packing, establishment graphite packing, filler pressing sleeve, hold-down grid are sequentially sleeved on the second valve rod from top to bottom, Through hole is provided with hold-down grid, one end of eyelet bolt is fixed through the through hole on hold-down grid and by movable joint nut, movable joint The other end of bolt is fixed on the lower section of hold-down grid by bearing pin.
- 2. non-lift formula valve rod gate valve according to claim 1, it is characterised in that：Through hole is provided with the retaining ring, Retaining ring is fixed on the outer wall of valve rod locking nut by bolt through through hole.
- 3. non-lift formula valve rod gate valve according to claim 1, it is characterised in that：The Packing seat, flexible graphite packing, Establishment graphite packing is successively set between the medial surface of support and the outside wall surface of the second valve rod under upper.
- 4. non-lift formula valve rod gate valve according to claim 1, it is characterised in that：Second valve rod is vertically arranged with quarter Plate is spent, is horizontally arranged with tuning drive gear, tuning drive gear points to scale plate, and tuning drive gear moves along the second valve rod direction.
- 5. non-lift formula valve rod gate valve according to claim 1, it is characterised in that：The O-ring seal at least 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720653520.1U CN206860915U (en) | 2017-06-07 | 2017-06-07 | Non-lift formula valve rod gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720653520.1U CN206860915U (en) | 2017-06-07 | 2017-06-07 | Non-lift formula valve rod gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206860915U true CN206860915U (en) | 2018-01-09 |
Family
ID=60831097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720653520.1U Active CN206860915U (en) | 2017-06-07 | 2017-06-07 | Non-lift formula valve rod gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206860915U (en) |
-
2017
- 2017-06-07 CN CN201720653520.1U patent/CN206860915U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |