CN206054769U - Scalable gate valve - Google Patents

Abstract

The utility model discloses scalable gate valve, including valve body, valve rod and the valve gap for fixing valve rod；Valve body is threeway tubulose, and which includes water inlet end, water side and the opening and closing of the valve plate between water inlet end and water side end；Valve rod lower end is provided with valve plate, and valve rod upper end is provided with handwheel；Valve plate is in valve plate opening and closing end；Valve gap is on valve plate opening and closing end；The water inlet end of valve body includes standing part and movable part；Standing part is integrally formed with valve plate opening and closing end, and movable part is sheathed on standing part outer wall in the form of it can slide axially；Standing part outer wall is provided with groove；Movable part is provided with the limited block for preventing which from fully sliding out from standing part；Limited block lower end is located in groove.The beneficial effects of the utility model are：Easy for installation, practical, good airproof performance, simple structure, manufacture use cost are low.

Description

Scalable gate valve

Technical field

This utility model is related to valve and fluid metering technical field, more particularly to a kind of scalable gate valve.

Background technology

Gate valve is widely used in productive life field.Gate valve generally comprises valve body and valve plate, and existing valve body two ends are usual Flange is provided with, is realized by flange when being connected with pipeline, and valve body two ends are generally pressed when being connected with pipeline and are provided with sealing ring. When gate valve need change when, after old gate valve is pulled down from pipeline, sealing ring is often difficult to extract, and due to sealing ring by Compression, the gap that can there is 6～8mm when causing new gate valve to be installed and sealing ring between, therefore existing gate valve are made in installation Used time, it is impossible to the length of regulation valve body according to actual needs, use range is greatly limited.

In prior art, the Chinese patent of Application No. 201420044463.3 discloses a kind of telescopic table front brake Valve, its valve body one end are provided with the adapter that can be stretched with respect to valve body, but as adapter is sheathed on body cavity, cause when adapter stretching Afterwards, valve interior wall can produce a difference in internal diameters, cause fluid to produce sinuous flow, due to close flashboard, therefore impact larger to flashboard, Affect the service life of gate valve；And valve body water side inner chamber is provided with draw-in groove, interior snap ring is installed in draw-in groove；And set on taking over It is equipped with limited step so that the manufacture assembling of the gate valve is excessively complicated, and practicality is low.

Utility model content

The purpose of this utility model seeks to overcome existing gate valve measure fluid flow in pipeline, there is provided Yi Zhongke Telescopic gate valve, it have can either control fluid on-off, and measurable fluid flow and certainty of measurement height, long service life, peace The characteristics of filling easy to maintenance.

For achieving the above object, the scalable gate valve designed by this utility model, including valve body, valve rod and be used for standing valve The valve gap of bar；The valve body is threeway tubulose, and which includes water inlet end, water side and the valve plate between water inlet end and water side Opening and closing end；The valve rod lower end is provided with valve plate, and valve rod upper end is provided with handwheel；The valve plate is in valve plate opening and closing end；Institute State valve gap to be opened and closed on end located at the valve plate；The water inlet end of the valve body includes standing part and movable part；The fixed part Divide and be integrally formed with valve plate opening and closing end, the movable part is sheathed on the standing part in the form of it can slide axially Outer wall；The standing part outer wall is provided with groove；The movable part be provided with prevent its from standing part fully slide out it is spacing Block；The limited block lower end is located in the groove.

Further, multiple sealing rings are embedded with outer wall of the standing part between its end and groove.

The beneficial effect of above-mentioned further scheme is：By the effect of sealing ring, the sealing of scalable gate valve is improved, is made Which will not cause sealing to reduce because valve body is scalable.

Preferably, on the valve plate, cladding is provided with rubbery sealed body.

Further, the valve gap passes through valve gap bolt connection with valve plate opening and closing end；The valve gap and the handwheel Between be provided with valve rod pressing plate；The valve rod upper end sequentially passes through the valve gap and valve rod pressing plate with the handwheel centrally through handwheel Nut connects.

Preferably, the valve gap upper end is additionally provided with prevents which from the valve rod locking plate of vertical misalignment occurring for locked valve rod.

Further, movable distance of the limited block in groove is more than 20mm.

The beneficial effects of the utility model are：By the valve body of gate valve is set to Collapsible structure, while by spacing The cooperation of block and groove is separated preventing valve body；And mounting means is identical with common gate valve, valve inleting water end and water side with During pipeline is bolted, valve body is retractable to appropriate length in the presence of bolt tension force, without the need for artificially adjusting length Degree, easy for installation, practical, good airproof performance, simple structure, manufacture use cost are low.

Description of the drawings

Structural representations of the Fig. 1 for the scalable gate valve of this utility model.

Left view partial sectional views of the Fig. 2 for Fig. 1.

Close-up schematic views of the Fig. 3 for Fig. 2.

Top views of the Fig. 4 for Fig. 1.

In figure, 1. valve body；1.1. water inlet end；1.1.1. standing part；1.1.2. movable part；1.2. water side；1.3. Valve plate is opened and closed end；2. valve rod；3. valve gap；4. valve plate；5. handwheel；6. groove；7. limited block；8. valve gap bolt；9. valve rod pressing plate； 10. hand wheel nut；11. valve rod locking plates；12. sealing rings；13. rubbery sealed bodies.

Specific embodiment

This utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Scalable gate valve as shown in Figure 1, Figure 2, Figure 3, Figure 4, including valve body 1, valve rod 2 and the valve for fixing valve rod 2 Lid 3；Valve body 1 is threeway tubulose, and which includes water inlet end 1.1, water side 1.2 and between water inlet end 1.1 and water side 1.2 Valve plate is opened and closed end 1.3；2 lower end of valve rod is provided with valve plate 4, and 2 upper end of valve rod is provided with handwheel 5；Valve plate 4 is in valve plate opening and closing end 1.3； Valve gap 3 is on valve plate opening and closing end 1.3；The water inlet end 1.1 of valve body 1 includes standing part 1.1.1 and movable part 1.1.2；Gu Determine part 1.1.1 to be integrally formed with valve plate opening and closing end 1.3, movable part 1.1.2 is sheathed on solid in the form of it can slide axially Determine part 1.1.1 outer walls；Standing part 1.1.1 outer walls are provided with groove 6；Movable part 1.1.2 is provided with prevents which from standing part 1.1.1 the limited block 7 for fully sliding out；7 lower end of limited block is located in groove 6.

Standing part 1.1.1 is embedded with multiple sealing rings 12 on the outer wall between its end and groove 6.Sealing ring 12 Quantity is preferably two.On valve plate 4, cladding is provided with rubbery sealed body 13.

Valve gap 3 is connected by valve gap bolt 8 with valve plate opening and closing end 1.3；Valve rod pressing plate 9 is provided between valve gap 3 and handwheel 5； 2 upper end of valve rod sequentially passes through valve gap 3 and valve rod pressing plate 9 is connected centrally through hand wheel nut 10 with handwheel 5.3 upper end of valve gap also sets Having prevents which from the valve rod locking plate 11 of vertical misalignment occurring for locked valve rod 2.

Movable distance α of the limited block 7 in groove 6 is more than 20mm.

Principle of the present utility model is as follows

When needing scalable gate valve of the present utility model is arranged on pipeline, first by water side 1.2 and the method on pipeline Orchid is bolted, and then the flange on the pipeline by water inlet end 1.1 with the other end is bolted, and tightens the mistake of bolt Cheng Zhong, movable part 1.1.2 can slide relative to standing part 1.1.1, and gate valve and pipeline are completed when bolt is tightened completely Installation, in the presence of two end flanges and bolt, the length of valve body 1 is now uniquely determined, movable part 1.1.2 and standing part 1.1.1 no longer relative slide；And by the sealing function of sealing ring 12, good seal performance；Simultaneously as movable part 1.1.2 It is to be sheathed on the outer wall of standing part 1.1.1, therefore after stretching, inwall will not produces sinuous flow at valve plate, so as to will not Affect gate valve service life；When scalable gate valve of the present utility model is assembled, sealing ring 12 is set in standing part by first-selection 1.1.1 correspondence position, is then sheathed on movable part 1.1.2 on standing part 1.1.1, finally by 7 alignment indentation 6 of limited block Plug, make the end of limited block 7 enter groove 6.Therefore scalable gate valve of the present utility model is made relative to prior art With more simple and convenient, low cost of manufacture, quick, practicality easy to assembly is higher.Separately it should be noted that telescopic structure is solid Determine part 1.1.1 and movable part 1.1.2 can also be arranged on water side 1.2.

Claims (6)

1. a kind of scalable gate valve, it is characterised in that：Valve gap including valve body (1), valve rod (2) and for fixing valve rod (2) (3)；The valve body (1) is threeway tubulose, and which includes water inlet end (1.1), water side (1.2) and is located at water inlet end (1.1) and goes out Valve plate opening and closing end (1.3) between water end (W.E.) (1.2)；Valve rod (2) lower end is provided with valve plate (4), and valve rod (2) upper end is provided with handwheel (5)；The valve plate (4) is in valve plate opening and closing end (1.3)；The valve gap (3) is opened and closed end (1.3) located at the valve plate On；The water inlet end (1.1) of the valve body (1) includes standing part (1.1.1) and movable part (1.1.2)；The standing part (1.1.1) it is integrally formed with valve plate opening and closing end (1.3), the movable part (1.1.2) is in the form of it can slide axially It is sheathed on the standing part (1.1.1) outer wall；Standing part (1.1.1) outer wall is provided with groove (6)；The movable part (1.1.2) it is provided with the limited block (7) for preventing which from fully sliding out from standing part (1.1.1)；Limited block (7) lower end is located at institute State in groove (6).

2. scalable gate valve according to claim 1, it is characterised in that：The standing part (1.1.1) its end with Multiple sealing rings (12) are embedded with outer wall between groove (6).

3. scalable gate valve according to claim 1, it is characterised in that：On the valve plate (4), cladding is provided with rubber seal Body (13).

4. scalable gate valve according to claim 1, it is characterised in that：The valve gap (3) is opened and closed end with the valve plate (1.3) connected by valve gap bolt (8)；Valve rod pressing plate (9) is provided between the valve gap (3) and the handwheel (5)；The valve rod (2) upper end sequentially passes through the valve gap (3) and valve rod pressing plate (9) is connected centrally through hand wheel nut (10) with the handwheel (5).

5. scalable gate valve according to claim 1, it is characterised in that：Valve gap (3) upper end is additionally provided with for locked Valve rod (2) prevents which from the valve rod locking plate (11) of vertical misalignment occurring.

6. scalable gate valve according to claim 1, it is characterised in that：The limited block (7) is removable in groove (6) Dynamic distance is more than 20mm.