CN205918924U - Gate valve - Google Patents
Gate valve Download PDFInfo
- Publication number
- CN205918924U CN205918924U CN201620977333.4U CN201620977333U CN205918924U CN 205918924 U CN205918924 U CN 205918924U CN 201620977333 U CN201620977333 U CN 201620977333U CN 205918924 U CN205918924 U CN 205918924U
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- valve
- medium
- runner
- valve rod
- block
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Abstract
The utility model relates to the field of valves, especially, relate to a gate valve. A gate valve, includes the valve body to and set up the valve gap on the valve body, and set up case subassembly in the valve pocket of valve body, and the drive is connected the valve rod of case subassembly, and the drive is connected the operating device of valve rod, the utility model provides a gate valve, this gate valve drives simple, convenient operation on the one hand, and this gate valve of on the other hand adopts and carves shape extruded principle, promotes gate valve sealing performance, prolongs gate valve life.
Description
Technical field
This utility model is related to valve field, more particularly, to a kind of gate valve.
Background technology
Gate valve is presently the most one of important valve species, is belonging to a kind of stop valve class, effect be to turn on or
Block the medium in pipeline, have of completely closed and fully open two kinds of working conditions, it is widely used in liquid, gas, dust
Circulation and cut-off in medium.But, weak point of both below gate valve in the market: 1, the structure of existing gate valve
Unreasonable, type of drive is complicated and operates inconvenience；2, existing gate valve is forced seal structure, real with the extruding of valve seat by gate valve
Now seal, but flashboard and valve base chamber easily stuck phenomenon because of thermal expansion, cause valve not open.And open relatively rapid
In the case of closing, the sealing contact surface of flashboard and valve seat, easily because abrasion in dynamic friction, substantially reduces the use of valve
Life-span.
Content of the invention
In order to solve the above problems, the purpose of this utility model is to provide a kind of gate valve, and on the one hand this gate valve drives letter
Single, easy to operate, on the other hand this gate valve adopts the principle of wedge extruding, lifts Gate-valve sealing performance, extends gate valve and uses the longevity
Life.
In order to realize above-mentioned purpose, this utility model employs following technical scheme:
A kind of gate valve, including valve body, and is arranged on the valve gap on valve body, and is arranged in the valve pocket of described valve body
Core assembly, and the valve rod of core assembly described in drive connection, and the operating mechanism of valve rod described in drive connection；
Described valve body is provided with the medium runner communicating respectively with its internal valve pocket, medium runner include medium enter runner and
Medium goes out runner, and the flow diameter that medium enters runner with medium goes out runner is identical and is on same axis, and medium enters runner
Medium entrance end, and medium goes out the flange disk body being equipped with the media outlet end of runner for being connected with medium pipeline,
Flange disk body is connected casting with valve body；
Described valve gap is fastened on valve body, the upper end open of valve gap closeding valve cavity；Described valve rod positioning is located in valve
Cover, stem lower portion is in valve pocket, between valve rod and valve gap, be provided with packing seal assembly, packing seal assembly includes filler,
And be used for positioning the filler set of described filler, and for positioning the hold-down grid of described filler set；
Described valve gap is fixedly arranged above support, and valve rod top is positioned inside executor, is provided with for protecting above support
The protective cap of described valve stem end；Described operating mechanism includes operating handwheel, and the umbrella tooth coaxially connected with operation handwheel, with
And it is set in the valve stem nut on valve rod upper end；The engagement of described valve stem nut outer end and umbrella tooth is connected, valve stem nut inner and
Described valve rod is meshed by screw thread；
Described core assembly is arranged on medium and enters in the valve pocket that runner and medium go out between runner, and core assembly includes wedge
Block, the block that rises, two pieces of seal discs and two leading trucks, two pieces of seal discs are arranged in parallel and be respectively at medium and enter runner and Jie
Matter goes out on the interior end opening of runner；Described leading truck is arranged on the valve body above seal disc, constitutes and use between two leading trucks
Guide rail in pilot seal disk；Described valve rod inner end is between two pieces of seal discs, and it is inner that wedge type block is connected to valve rod
In portion, seal disc is offered the positioning shaft hole paralleled with medium runner, the interior end side surface of seal disc is provided with locating shaft,
The locating shaft of seal disc is arranged in the positioning shaft hole of wedge type block；The described block that rises is between wedge type block and seal disc, and rise block
Bottom is offseted with the inner face of valve body, and the block that rises is hung on described wedge type block, and wedge type block is offseted with block inclined-plane cooperation of rising.
This utility model adopts technique scheme, and this gate valve has a following both sides advantage:
1, the valve rod in this gate valve connects described core assembly, valve rod described in operating mechanism drive connection；Wherein, operate machine
Structure adopts the rotation of manipulator's wheel drive umbrella tooth, umbrella tooth and the valve stem nut engaged transmission, valve stem nut and the valve that are set on valve rod
Screw body is constituted between bar, during valve stem nut rotates, valve rod axial direction mobile band movable valve plug assembly lifting, realize to Jie
The control in mass flow road；Above-mentioned driving structure is simple, easy to operate and be easy to regular maintenance.
2, the core assembly in this gate valve adopts the run-in index sealing structure of two pieces of seal discs, i.e. two pieces of seal discs and sealing
Face is parallel；During progressively closing under core assembly is driven by valve rod, wedge type block on valve stem end tilts extruding and rises block,
Make to rise by block parallel to the movement of medium runner direction, and make to rise by block outwardly against seal disc simultaneously, make seal disc be sealed in sealing surface
On, realize valve element and close, using the principle of wedge extruding during being somebody's turn to do, make the sealing surface tensioner cooperation of seal disc and valve body, carry
Rise Gate-valve sealing performance.During progressively opening under core assembly is driven by valve rod, wedge type block, rise block and seal disc are in valve
Rise under the drive of bar, the guide rail guide spool assembly constituting between two leading trucks；During rising, wedge type block
For extruding force forfeiture, seal disc and the sealing surface no Relative friction of the block that rises, reduce the keying moment of valve, reduce mill simultaneously
Damage, increase the service life of valve.
Brief description
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of core assembly.
Specific embodiment
Below in conjunction with the accompanying drawings, preferred embodiment of the present utility model is described in further detail.
A kind of gate valve as shown in Figure 1 and Figure 2, including valve body 1, and is arranged on the valve gap 2 on valve body 1, and is arranged on
Core assembly 3 in the valve pocket of described valve body 1, and the valve rod 4 of core assembly 3 described in drive connection, and drive connection institute
State the operating mechanism of valve rod 4.Described valve body 1 is provided with the medium runner communicating respectively with its internal valve pocket, and medium runner includes
Medium enters runner 11 and medium goes out runner 12, and the flow diameter that medium enters runner 11 with medium goes out runner 12 is identical and is in same
On axis, medium enters the medium entrance end of runner 11, and medium goes out to be equipped with flange disk body on the media outlet end of runner 12
13, flange disk body 13 and valve body 1 integrally connected casting, gate valve is used for being connected to medium pipeline by flange disk body 13.
Described valve gap 2 is fastened on valve body 1, the upper end open of valve gap 2 closeding valve cavity.Described valve rod 4 positioning wears
On valve gap 2, valve rod 4 bottom is in valve pocket, is provided with packing seal assembly, packing seal assembly bag between valve rod 4 and valve gap 2
Include filler 41, and cover 42 for positioning the filler of described filler, and for positioning the hold-down grid 43 of described filler set 42.
Filler in packing seal assembly is used for ensureing that the sealing between valve rod 4 and valve gap 2, filler set 42 and hold-down grid 43 are used for
Described filler is positioned, so that filler is fixed, prevent filler from producing pine in the friction process long-term with described valve rod 4
Dynamic；Thus lifting its sealing effectiveness, making gate valve be not likely to produce medium and revealing and permeate, ensureing that valve rod 4 moves, extend valve rod 4
Service life.
Described valve gap 2 is fixedly arranged above support 51, and valve rod 4 top is positioned inside support 51, is provided with use above support 51
In the protective cap 52 protecting described valve rod 4 end.Described operating mechanism includes operating handwheel 53, and coaxial with operation handwheel 53
The umbrella tooth 54 connecting, and it is set in the valve stem nut 55 on valve rod 4 upper end.Described valve stem nut 55 outer end is nibbled with umbrella tooth 54
Close and connect, the inner and described valve rod 4 of valve stem nut 55 is meshed.In said structure, the valve rod 4 of gate valve connects described core assembly
3, valve rod 4 described in operating mechanism drive connection.Wherein, operating mechanism drives umbrella tooth 54 to rotate using operation handwheel 53, umbrella tooth 54
With valve stem nut 55 engaged transmission being set on valve rod 4, between valve stem nut 55 and valve rod 4, constitute screw body, valve rod spiral shell
During female 55 rotate, valve rod 4 axial movement drives core assembly 3 to lift, and realizes the control to medium runner.Above-mentioned driving
Structure is simple, easy to operate and be easy to regular maintenance.
Described core assembly 3 is arranged on that medium enters runner 11 and medium goes out in the valve pocket between runner 12, and core assembly 3 wraps
Include wedge type block 31, rise 32, two pieces of seal discs 33 of block and two leading trucks 34, two pieces of seal discs 33 are arranged in parallel and locate respectively
Enter on the interior end opening that runner 11 and medium go out runner 12 in medium.Described leading truck 34 is arranged on the valve body of seal disc 33 top
On 1, between two leading trucks 34, constitute the guide rail for pilot seal disk 33.Described valve rod 4 inner end be in two pieces close
Between closing disk 33, wedge type block 31 is connected on valve rod 4 inner end, and seal disc 33 is offered the positioning paralleled with medium runner
Axis hole 35, the interior end side surface of seal disc 33 is provided with locating shaft 36, and the locating shaft 36 of seal disc 33 is arranged on wedge type block 31
In positioning shaft hole 35.The described block 32 that rises is between wedge type block 31 and seal disc 33, the bottom of the block 32 that rises and the inner of valve body 1
Face offsets, and the block 32 that rises is hung on described wedge type block 31, and wedge type block 31 is offseted with block 32 inclined-plane cooperation of rising.In said structure, lock
The core assembly 3 of valve adopts the run-in index sealing structure of two pieces of seal discs 33, and that is, two pieces of seal discs 33 are parallel with sealing surface.In valve
Core assembly 3 is driven down by valve rod 4 during progressively closing, and wedge type block 31 on valve rod 4 end tilts extruding and rises block 32, makes to rise
Block 32 moves parallel to medium runner direction, and makes to rise by block 32 outwardly against seal disc 33 simultaneously, so that seal disc 33 is sealed in close
On front cover, realize valve element and close, using the principle of wedge extruding during being somebody's turn to do, make the sealing surface tensioner of seal disc 33 and valve body 1
Cooperation, lifts Gate-valve sealing performance.During progressively opening under core assembly 3 is driven by valve rod 4, wedge type block 31, rise block
32 and seal disc 33 rise under the drive of valve rod 4, between two leading trucks 34 constitute guide rail guide spool assembly 3.
During rising, wedge type block 31, for extruding force forfeiture, seal disc 33 and the sealing surface no Relative friction of the block 32 that rises, reduces
The keying moment of valve, reduces abrasion simultaneously, increases the service life of valve.
It should be appreciated that above-mentioned specific embodiment of the present utility model is used only for exemplary illustration or explains this reality
With new principle, and do not constitute to restriction of the present utility model.Therefore, without departing from spirit and scope of the present utility model
In the case of any modification, equivalent substitution and improvement done etc., should be included within protection domain of the present utility model.Additionally,
This utility model claims are intended to fall into scope and border or this scope and border
Whole changes in equivalents and modification.
Claims (1)
1. a kind of gate valve, including valve body, and is arranged on the valve gap on valve body, and is arranged on the valve in the valve pocket of described valve body
Core assembly, and the valve rod of core assembly described in drive connection, and the operating mechanism of valve rod described in drive connection；Its feature exists
In:
Described valve body is provided with the medium runner communicating respectively with its internal valve pocket, and medium runner includes medium and enters runner and medium
Go out runner, the flow diameter that medium enters runner with medium goes out runner is identical and is on same axis, and medium enters the medium of runner
Entrance point, and medium goes out the flange disk body being equipped with the media outlet end of runner for being connected, flange with medium pipeline
Disk body is connected casting with valve body；
Described valve gap is fastened on valve body, the upper end open of valve gap closeding valve cavity；Described valve rod positioning is located on valve gap,
Stem lower portion is in valve pocket, is provided with packing seal assembly between valve rod and valve gap, and packing seal assembly includes filler, Yi Jiyong
In the filler set of positioning filler, and for positioning the hold-down grid of filler set；
It is provided with support, valve rod top is positioned at internal stent, is provided with for protecting described valve rod above support above described valve gap
The protective cap of end；Described operating mechanism includes operating handwheel, and the umbrella tooth coaxially connected with operation handwheel, and is set in
Valve stem nut on valve rod upper end；The engagement of described valve stem nut outer end and umbrella tooth is connected, and valve stem nut is inner and described valve rod
It is meshed；
Described core assembly is arranged on medium and enters in the valve pocket that runner and medium go out between runner, core assembly include wedge type block,
Rise block, two pieces of seal discs and two leading trucks, and two pieces of seal discs are arranged in parallel and be respectively at medium and enter runner and medium
Go out on the interior end opening of runner；Described leading truck is arranged on the valve body above seal disc, constitutes and be used between two leading trucks
The guide rail of pilot seal disk；Described valve rod inner end is between two pieces of seal discs, and wedge type block is connected to valve rod inner end
On, seal disc is offered the positioning shaft hole paralleled with medium runner, the interior end side surface of seal disc is provided with locating shaft, close
The locating shaft of closing disk is arranged in the positioning shaft hole of wedge type block；The described block that rises is between wedge type block and seal disc, rises under block
End is offseted with the inner face of valve body, and the block that rises is hung on described wedge type block, and wedge type block is offseted with block inclined-plane cooperation of rising.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620977333.4U CN205918924U (en) | 2016-08-29 | 2016-08-29 | Gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620977333.4U CN205918924U (en) | 2016-08-29 | 2016-08-29 | Gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205918924U true CN205918924U (en) | 2017-02-01 |
Family
ID=57869802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620977333.4U Active CN205918924U (en) | 2016-08-29 | 2016-08-29 | Gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205918924U (en) |
-
2016
- 2016-08-29 CN CN201620977333.4U patent/CN205918924U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |