CN208268448U - A kind of flat gate valve of cavitation prevention - Google Patents
A kind of flat gate valve of cavitation prevention Download PDFInfo
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- CN208268448U CN208268448U CN201820779224.0U CN201820779224U CN208268448U CN 208268448 U CN208268448 U CN 208268448U CN 201820779224 U CN201820779224 U CN 201820779224U CN 208268448 U CN208268448 U CN 208268448U
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Abstract
The utility model discloses a kind of flat gate valves of cavitation prevention, including valve body, the both ends of the valve body are respectively welded valve seat and tight connecting seat, the inside of the valve seat offers medium through hole, mounting groove is offered on the two sides outer wall of the medium through hole, the inside of two mounting grooves is separately installed with floating seat and floats downward seat, it the floating seat and floats downward and is connected with elastic jackstay and through-flow plate between seat, the through-flow plate is located at the side of elastic jackstay, and the top of through-flow plate is welded with flashboard set, the utility model is provided with valve seat, floating seat, float downward seat, through-flow plate, spacer pin and flashboard set, when gate valve is opened, medium passes through the through flow hole on through-flow plate and keeps circulating, when closing gate valve, the handwheel on manual rotary seal attachment base top, shaft rotation is driven by connecting flange when hand wheel rotating, mistake of the shaft in rotation The screw rod rotation of valve inner is driven in journey, screw rod screws when rotating with swivel nut.
Description
Technical field
The utility model belongs to flat gate valve technical field, and in particular to a kind of flat gate valve of cavitation prevention.
Background technique
Flat gate valve is the slide-valve that a kind of closure member is parallel gate plate, and closure member can be single disc or therebetween band
Have a double disc of spreading mechanism, flashboard to the pressing force of valve seat be by act on the pressure medium of floating flashboard or floating valve seat Lai
Control, if it is double disc flat gate valves, then the spreading mechanism between two flashboards can supplement this pressing force, and flat gate valve is by drive
Flowing mode can be divided into manual platform gate valve, Pneumatic flat-plate gate valve and driven plate gate valve.
In the Chinese patent of Patent No. CN207229796U, a kind of flat gate valve of cavitation prevention is proposed, by setting
Accommodating cabinet is set, an enclosed construction is formed, the flat gate valve of exposed valve rod is changed to dark rod flat plate gate valve, effectively prevent air
Corrosion to valve rod, and zinc can is plated in the outer surface of accommodating cabinet and medium cabinet, to also carrying out corrosion protection outside flat gate valve
Vacancy reason, reaches and accomplishes effectively to prevent air erosion inside and outside flat gate valve, still, pass through medium in above-mentioned flat gate valve
Cabinet realizes to the sealing corrosion of flashboard, and the setting of medium cabinet is easy to influence the circulation of gate valve medium, and above-mentioned flat
Plate gate valve drives bearing column rotation by flange during rotating handwheel, and between the bearing column rotated and sealing rubber ring
Continuous frictional be easy to cause rubber ring to wear, and influences the sealing effect for accommodating cabinet.
Utility model content
The purpose of this utility model is to provide a kind of flat gate valves of cavitation prevention, to solve setting for existing medium cabinet
Setting the circulation for being easy to influence gate valve medium and rubber ring abrasion influences the problem of accommodating cabinet sealing effect.
To achieve the above object, the utility model provides the following technical solutions: a kind of flat gate valve of cavitation prevention, including valve
Body, the both ends of the valve body are respectively welded valve seat and tight connecting seat, and the inside of the valve seat offers medium through hole, described
Mounting groove is offered on the two sides outer wall of medium through hole, the inside of two mounting grooves is separately installed with floating seat and floats downward
Seat, the floating seat and floats downward and is connected with elastic jackstay and through-flow plate between seat, and the through-flow plate is located at the side of elastic jackstay,
And the top of through-flow plate is welded with flashboard set, the top of the flashboard set is welded with locating end plate.
Preferably, the middle position of the through-flow plate offers through flow hole, and welds on the two sides outer wall of through-flow plate
There is spacer pin, two spacer pins are respectively positioned on the inside of floating seat.
Preferably, the top of the tight connecting seat is equipped with handwheel, the handwheel and sealed connection by positioning bolt
It is connected with connecting flange between seat, the connecting flange is equipped with shaft far from the side outer wall of handwheel.
Preferably, the inside of the valve body is equipped with screw rod, and the screw rod is rotatablely connected by shaft seat and shaft.
Preferably, the interior welds of the tight connecting seat have sealing plate and seal rubber, and the sealing plate is located at sealing
The side of rubber, and there are two sealing plate and seal rubber be respectively provided with, it is formed with sealing lubrication chamber between two sealing plates,
The inside of the sealing lubrication chamber is filled with resin solvent, and the side of sealing lubrication chamber offers sealing filler.
Preferably, it is arranged with swivel nut on the outer wall of the screw rod, is rotatably connected to valve rod on the side outer wall of the swivel nut,
The bottom end of the valve rod is welded with valve rod end block, and the valve rod end block is described far from being welded with flashboard on the side outer wall of valve rod
Flashboard is located at the inside of flashboard set.
The utility model compared with prior art, has the advantages that
(1) the utility model is provided with valve seat, the seat that floats, floats downward seat, through-flow plate, spacer pin and flashboard set, and gate valve is opened
When, medium passes through the through flow hole on through-flow plate and keeps circulating, when closing gate valve, the hand on manual rotary seal attachment base top
Wheel, drives shaft rotation by connecting flange when hand wheel rotating, and shaft drives the screw rod turn of valve inner in the course of rotation
Dynamic, screw rod screws when rotating with swivel nut, so that swivel nut is moved along screw rod direction, swivel nut band ovable valve stem is mobile, valve rod band ovable valve stem
End block pushes down on flashboard set to close to the movement of the direction of locating end plate, and by locating end plate, and flashboard set pushes through-flow plate to move
Dynamic, through-flow plate drives floating seat to the close direction movement for floating downward seat by spacer pin, and is moved to through flow hole and floats downward seat
Side, flashboard set is located inside medium through hole at this time, and flashboard is located at the inside of flashboard set, and medium is hindered by flashboard set and flashboard
Every so that gate valve is in sealing state, no matter in the open state of gate valve or sealing state, valve rod is in always with flashboard
Sealing state is neither contacted with air, and is not in addition being protected with media contact to avoid valve rod and flashboard by air corrosion
Under the premise of card avoids corrosion, the circulation of medium in gate valve can be effectively ensured by through-flow plate.
(2) the utility model is provided with tight connecting seat, sealing plate, seal rubber, sealing lubrication chamber and resin solvent, turns
Axis generates friction in rotation between sealing plate and seal rubber, and the intracavitary resin containing lubrication sealing of sealing lubrication is molten
Agent, can effectively lubricating shaft and sealing plate and seal rubber, reduce frictional force, reduce abrasion, by resin solvent, sealing plate and
It is multi-sealed between seal rubber realization shaft and tight connecting seat, to improve the sealing effect of valve inner, avoid sky
Gas enters valve inner corrosion valve rod and flashboard, and in addition resin solvent not only acts as certain sealing function, also acts as certain profit
Sliding effect, so that the service life of sealing plate and seal rubber is improved, and when resin solvent content is reduced or is finished, it can pass through
Sealing filler is filled, so that tight connecting seat is able to maintain the sealing function of continuous and effective.
Detailed description of the invention
Fig. 1 is the front view of the utility model；
Fig. 2 is the structural schematic diagram of the utility model valve seat；
Fig. 3 is the structural schematic diagram of the utility model tight connecting seat；
In figure: 1- valve body, 2- valve seat, 201- medium through hole, 202- mounting groove, 203- floating seat, 204- float downward seat, 205-
Elastic jackstay, 206- are through-flow plate, 207- through flow hole, 208- spacer pin, 3- tight connecting seat, 301- positioning bolt, 302- handwheel,
303- connecting flange, 304- shaft, 305- sealing plate, 306- seal rubber, 307- sealing lubrication chamber, 308- resin solvent,
309- seals filler, 4- flashboard set, 5- locating end plate, 6- screw rod, 7- swivel nut, 8- valve rod, 9- valve rod end block, 10- flashboard.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
It please refers to shown in Fig. 1-Fig. 3, the utility model provides the following technical solutions: a kind of flat gate valve of cavitation prevention, packet
Valve body 1 is included, the both ends of valve body 1 are respectively welded valve seat 2 and tight connecting seat 3, and the inside of valve seat 2 offers medium through hole 201,
Mounting groove 202 is offered on the two sides outer wall of medium through hole 201, the inside of two mounting grooves 202 is separately installed with floating seat
It 203 and floats downward seat 204, floating seat 203 and floats downward and be connected with elastic jackstay 205 and through-flow plate 206 between seat 204, through-flow plate 206
It is welded with flashboard set 4 positioned at the top of the side of elastic jackstay 205, and through-flow plate 206, the top of flashboard set 4 is welded with positioning
End plate 5, locating end plate 5 are used to limit the position that flashboard set 4 moves down, and flashboard set 4 is avoided to enter inside medium through hole 201, thus
Guarantee the sealing effect inside flashboard set 4.
Further, the middle position of through-flow plate 206 offers through flow hole 207, and on the two sides outer wall of through-flow plate 206
It is welded with spacer pin 208, two spacer pins 208 are respectively positioned on the inside of floating seat 203, and spacer pin 208 is for limiting through-flow plate
206 with the relative position of floating seat 203, be easy to implement the reset of through-flow plate 206.
Further, the top of tight connecting seat 3 is equipped with handwheel 302 by positioning bolt 301, handwheel 302 with it is close
It is connected with connecting flange 303 between envelope attachment base 3, connecting flange 303 is equipped with shaft 304 far from the side outer wall of handwheel 302,
Shaft 304 is driven to rotate by the rotation of handwheel 302, to realize the unlatching and sealing of gate valve.
Specifically, the inside of valve body 1 is equipped with screw rod 6, and screw rod 6 is rotatablely connected by shaft seat and shaft 304, by turning
The rotation of axis 304 drives screw rod 6 to rotate.
It is worth noting that the interior welds of tight connecting seat 3 have sealing plate 305 and seal rubber 306, sealing plate 305
Positioned at the side of seal rubber 306, and there are two sealing plate 305 and seal rubber 306 be respectively provided with, between two sealing plates 305
It is formed with sealing lubrication chamber 307, the inside of sealing lubrication chamber 307 is filled with resin solvent 308, and the one of sealing lubrication chamber 307
Side offers sealing filler 309, when 308 content of resin solvent is reduced or is finished, can be added by sealing filler 309
Note, so that tight connecting seat 3 is able to maintain the sealing function of continuous and effective.
Preferably, it is arranged with swivel nut 7 on the outer wall of screw rod 6, is rotatably connected to valve rod 8, valve rod on the side outer wall of swivel nut 7
8 bottom end is welded with valve rod end block 9, and far from flashboard 10 is welded on the side outer wall of valve rod 8, flashboard 10 is located at valve rod end block 9
The inside of flashboard set 4, valve rod end block 9 are used to limit valve rod 8 in the relative position of flashboard set 4, valve rod 8 are avoided to be inserted into flashboard set 4
It is internal.
The working principle and process for using of the utility model: when using the gate valve, valve seat 2 is pacified by medium through hole 201
Loaded on pipeline, medium is connected by medium through hole 201, when gate valve is in the open state, floating seat 203 and is floated downward seat 204 and is divided
Wei Yu not be in the mounting groove 202 of 201 two sides of medium through hole, medium passes through the through flow hole 207 in through-flow 206 middle position of plate and is arranged
Out, when closing gate valve, the handwheel 302 on manual 3 top of rotary seal attachment base passes through 303 band of connecting flange when handwheel 302 rotates
Turn axis 304 rotates, and shaft 304 rubs in rotation generation between sealing plate 305 and seal rubber 306, and sealing lubrication
Resin solvent 308 containing lubrication sealing in chamber 307, energy effectively lubricating shaft 304 and sealing plate 305 and seal rubber 306, drop
Low-frictional force reduces abrasion, and in addition shaft 304 is rotated with the screw rod 6 inside moving valve 1 in the course of rotation, and screw rod 6 rotates
When screwed with swivel nut 7 so that swivel nut 7 is moved along 6 direction of screw rod, swivel nut 7 is mobile with ovable valve stem 8, and valve rod 8 is with ovable valve stem end block 9
Flashboard set 4 is pushed down on to close to the movement of the direction of locating end plate 5, and by locating end plate 5, flashboard set 4 pushes through-flow plate 206
Mobile, through-flow plate 206 drives floating seat 203 to the close direction movement for floating downward seat 204 by spacer pin 208, and makes through flow hole
207 are moved to the side for floating downward seat 204, and flashboard set 4 is located inside medium through hole 201 at this time, and flashboard 10 is located at flashboard set 4
Inside, medium is obstructed by flashboard set 4 and flashboard 10, so that gate valve is in sealing state, floating seat 203 and is floated downward between seat 204
Elastic jackstay 205 is installed, in Gate-valve sealing, elastic jackstay 205 is compressed, and when reopening gate valve, elastic jackstay
205 rebounds realize lock so that floating seat 203 is separated with seat 204 is floated downward, and drives through-flow plate 206 to reset by spacer pin 208
The unlatching of valve.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of flat gate valve of cavitation prevention, including valve body (1), it is characterised in that: the both ends of the valve body (1) are respectively welded
The inside of valve seat (2) and tight connecting seat (3), the valve seat (2) offers medium through hole (201), the medium through hole (201)
Two sides outer wall on offer mounting groove (202), the inside of two mounting grooves (202) is separately installed with floating seat
(203) it and floats downward seat (204), the floating seat (203) and floating downward is connected with elastic jackstay (205) and through-flow between seat (204)
Plate (206), the through-flow plate (206) is located at the side of elastic jackstay (205), and the top of through-flow plate (206) is welded with flashboard
It covers (4), the top of the flashboard set (4) is welded with locating end plate (5).
2. a kind of flat gate valve of cavitation prevention according to claim 1, it is characterised in that: in the through-flow plate (206)
Between offer through flow hole (207) at position, and spacer pin (208) are welded on the two sides outer wall of through-flow plate (206), two institutes
State the inside that spacer pin (208) is respectively positioned on floating seat (203).
3. a kind of flat gate valve of cavitation prevention according to claim 1, it is characterised in that: the tight connecting seat (3)
Top is equipped with handwheel (302) by positioning bolt (301), is connected between the handwheel (302) and tight connecting seat (3)
Acting flange (303), the connecting flange (303) are equipped with shaft (304) far from the side outer wall of handwheel (302).
4. a kind of flat gate valve of cavitation prevention according to claim 1, it is characterised in that: pacify the inside of the valve body (1)
Equipped with screw rod (6), the screw rod (6) is rotatablely connected by shaft seat and shaft (304).
5. a kind of flat gate valve of cavitation prevention according to claim 2, it is characterised in that: the tight connecting seat (3)
Interior welds have sealing plate (305) and seal rubber (306), and the sealing plate (305) is located at the side of seal rubber (306),
And there are two sealing plate (305) and seal rubber (306) be respectively provided with, sealing profit is formed between two sealing plates (305)
The inside of sliding chamber (307), the sealing lubrication chamber (307) is filled with resin solvent (308), and the one of sealing lubrication chamber (307)
Side offers sealing filler (309).
6. a kind of flat gate valve of cavitation prevention according to claim 4, it is characterised in that: on the outer wall of the screw rod (6)
It is arranged with swivel nut (7), is rotatably connected to valve rod (8) on the side outer wall of the swivel nut (7), the bottom end welding of the valve rod (8)
Have valve rod end block (9), is welded with flashboard (10), the flashboard on the side outer wall of the valve rod end block (9) separate valve rod (8)
(10) it is located at the inside of flashboard set (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820779224.0U CN208268448U (en) | 2018-05-24 | 2018-05-24 | A kind of flat gate valve of cavitation prevention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820779224.0U CN208268448U (en) | 2018-05-24 | 2018-05-24 | A kind of flat gate valve of cavitation prevention |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208268448U true CN208268448U (en) | 2018-12-21 |
Family
ID=64685509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820779224.0U Active CN208268448U (en) | 2018-05-24 | 2018-05-24 | A kind of flat gate valve of cavitation prevention |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208268448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812592A (en) * | 2019-03-08 | 2019-05-28 | 河南宇宙流体科技有限公司 | A kind of high performance steel gate valve |
-
2018
- 2018-05-24 CN CN201820779224.0U patent/CN208268448U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812592A (en) * | 2019-03-08 | 2019-05-28 | 河南宇宙流体科技有限公司 | A kind of high performance steel gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211029 Address after: 313100 Changxing County Huzhou town industrial concentration area, Huzhou, Zhejiang Patentee after: BIAOSHENG VALVE CO.,LTD. Address before: 313105 Lvshan Township Industrial Park, Changxing County, Huzhou City, Zhejiang Province Patentee before: HUZHOU LOCK CONTROL VALVE Co.,Ltd. |
|
| TR01 | Transfer of patent right |