CN207796127U - self-sealing gate valve - Google Patents
self-sealing gate valve Download PDFInfo
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- CN207796127U CN207796127U CN201721811905.2U CN201721811905U CN207796127U CN 207796127 U CN207796127 U CN 207796127U CN 201721811905 U CN201721811905 U CN 201721811905U CN 207796127 U CN207796127 U CN 207796127U
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- valve
- flashboard
- runner
- flow inlet
- branching block
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Abstract
The utility model is related to a kind of self-sealing gate valves, including valve body, flashboard, valve seat, valve rod and operating mechanism, runner is provided in valve body, operating mechanism drives flashboard lifting by valve rod, control cut-out and the unicom of runner, valve seat is installed on runner and coordinates in sealing with flashboard, runner is provided with flow inlet and outflow port, runner is located at is provided with shunt assembly in the part of flow inlet, shunt assembly includes shunting track, branching block and streaming buffer spring, shunting track is respectively arranged at the flow path wall of both sides along runner direction, branching block both sides are slid respectively in shunting track, branching block is in coniform, and the small end of circular cone is towards flow inlet, streaming buffer spring is installed on each shunting track and resets branching block to close to the direction of flow inlet.Using the above scheme, a kind of reduction medium of the utility model offer impacts flashboard, avoids flashboard deformation, extends the self-sealing gate valve of flashboard service life.
Description
Technical field
The utility model is related to a kind of gate valves, and in particular to a kind of self-sealing gate valve.
Background technology
Gate valve is an opening and closing element flashboard, and the direction of motion and the perpendicular valve of flow direction of flashboard, gate valve can only be made
Standard-sized sheet and fully closed, cannot make adjustments and throttle, and self-sealing gate valve is then seal form according to valve deck and valve body and names.
The flashboard of traditional self-sealing gate valve is vertical lifting control runner cut-out or unicom, and media flow direction then makes
Laterally, flashboard is easily caused when having big fluid impact flashboard and generates deformation with valve rod joining place, and then leads to flashboard and side
Valve seat friction become larger, aggravation both abrasion, increase the unlatching torque of flashboard.
Invention content
Flashboard is rushed in view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of reduction media
It hits, avoids flashboard deformation, extend the self-sealing gate valve of flashboard service life.
To achieve the above object, the utility model provides following technical solution：Including valve body, flashboard, valve seat, valve rod and
Operating mechanism, runner is provided in the valve body, and the operating mechanism drives flashboard to lift, controls runner by valve rod
Cut-out and unicom, the valve seat are installed on runner and coordinate in sealing with flashboard, and the runner is provided with flow inlet and goes out
Head piece, it is characterised in that：The runner is located at is provided with shunt assembly, the shunt assembly in the part of flow inlet
The stream of both sides is respectively arranged at along runner direction including shunting track, branching block and streaming buffer spring, the shunting track
Road wall, the branching block both sides are respectively arranged with sliding in the slipping block of shunting track, and the branching block is in coniform, and
For the small end of circular cone towards flow inlet, the streaming buffer spring is installed on each shunting track by branching block to close to flow inlet
Direction resets.
By using above-mentioned technical proposal, shunt assembly is added, the medium that flow inlet is entered is by coniform branching block
It is shunted, and is guided to side, reduce impact of the medium to flashboard, extend the service life of flashboard, and streaming buffer spring
Shunting block buffering then is given when medium is excessive to branching block impact, branching block is protected, is prolonged the service life.
The utility model is further arranged to：The branching block is threaded by pedestal and circular cone, the pedestal
Mounting post, the circular cone are provided with the mounting groove with screw thread mounting post screw-thread fit.
By using above-mentioned technical proposal, enable circular cone that can be replaced, it is easy to repair, and according to uninterrupted
Replace specification, while protection to flashboard as far as possible medium quickly through.
The utility model is further arranged to：The shunting track extends to flow inlet, and the shunting track is located at
Flow inlet is provided with the sealing block being limited in branching block in shunting track.
By using above-mentioned technical proposal, extend shunting track and make it easy to process, adding sealing block makes the peace of branching block
Dress is more convenient.
The utility model is further arranged to：It is provided with the valve deck coordinated with valve seal above the valve body, it is described
Valve deck above be provided with the mounting bracket of installation operation mechanism, the mounting bracket top is provided with mounting platform, described
Operating mechanism include operation seat, valve stem nut and handwheel, the operation seat be positioned over mounting platform and with mounting platform it
Between be provided with dismountable installation bolt, the operation seat is provided with the rotation chamber being rotatably assorted with valve stem nut, described
Valve stem nut, which is located between the part of rotation intracavitary and rotation chamber, is provided with needle roller thrust bearing, the handwheel driving stem spiral shell
Parent phase is provided with lubrication channel to operation seat rotation, the operation seat side, and described lubrication channel one end extends to the external world
And it is provided with lubricating cup, the other end extends to rotation chamber and opposite with needle roller thrust bearing, and the lubricating cup is provided with towards the external world
Oil inlet is provided with oil outlet towards lubrication channel.
It is installed on mounting bracket after composable using operating mechanism as a module by using above-mentioned technical proposal,
Caused inconvenience can not be replaced and processed before replacement, assembled on demand, and by needle roller thrust bearing, valve stem nut is made to have
Smaller torque and reduction abrasion ensure service life in addition, lubrication channel keeps lubricating to the needle bearing moment.
The utility model is further arranged to：It is provided with above the valve body and passes through for valve rod and coordinate with valve seal
Stuffing box, the stuffing box upper end is located at the position that valve rod passes through and is provided with packing cavity, is filled in the packing cavity
Filler, stuffing box top are provided with by filler pressing with the gland of packing cavity and gland are fixed on filler
The gland fixing piece of case, pressure is equipped with pressing sleeve between the gland and filler, and the pressing sleeve is sheathed on stem outer circumference, institute
The pressing sleeve upper end stated is provided with extruding guide surface, and the extruding guide surface is gradually dropped with far from pressing sleeve upper surface centre-height
Low, the gland is provided with the through-hole passed through for valve rod, and the edge of the via bottoms is provided with and squeezes guiding
The compatible extrusion fit face of face shape.
By using above-mentioned technical proposal, for valve deck fixing piece when exerting a force to gland, gland can pass through pressing sleeve
It exerts a force to filler, the mode of transfer force of opposite gland and pressing sleeve plane contact, by the way of inclined-plane cooperation, the two coordinates more
Step up close, enables active force of the filler by bigger, improve sealing performance, the preferably fixed lead screw of valve deck fixing piece.
The utility model is further described with reference to the accompanying drawings and detailed description.
Description of the drawings
Fig. 1 is the structural schematic diagram of specific embodiment of the present invention；
Fig. 2 is the overlooking structure diagram of valve body and shunt assembly in specific embodiment of the present invention；
Fig. 3 is the enlarged drawing of A in Fig. 1；
Fig. 4 is the enlarged drawing of B in Fig. 1.
Specific implementation mode
As shown in Fig. 1-Fig. 4, the utility model discloses a kind of self-sealing gate valve, including valve body 1, flashboard 2, valve seat 3,
Valve rod 4 and operating mechanism 5 are provided with runner 11 in valve body 1, and operating mechanism 5 passes through valve rod 4 and flashboard 2 is driven to lift, and controls runner
11 cut-out and unicom, valve seat 3 are installed on runner 11 and coordinate in sealing with flashboard 2, and runner 11 is provided with flow inlet 12 and goes out
Head piece 13, runner 11, which is located in the part of flow inlet 12, is provided with shunt assembly 6, shunt assembly 6 include shunting track 14,
Branching block 61 and streaming buffer spring 62, shunting track 14 are respectively arranged at 11 wall of runner of both sides, shunting along 11 direction of runner
61 both sides of block are respectively arranged with sliding in the slipping block 63 of shunting track 14, and branching block 61 is in coniform, and the small end court of circular cone
To flow inlet 12, streaming buffer spring 62 is installed on each shunting track 14 and answers branching block 61 to close to the direction of flow inlet 12
Position, adds shunt assembly 6, the medium that flow inlet 12 enters is shunted by coniform branching block 61, and is guided to side,
Impact of the medium to flashboard 2 is reduced, the service life of flashboard 2 is extended, and streaming buffer spring 62 is then in medium to branching block 61
The buffering of branching block 61 is given when impacting excessive, and branching block 61 is protected, is prolonged the service life.
For branching block 61 by pedestal 611 and circular cone 612, pedestal 611 is threaded mounting post 613, and circular cone 612 is provided with
With the mounting groove 614 of 613 screw-thread fit of screw thread mounting post, enable circular cone 612 that can be replaced, easy to repair and root
According to uninterrupted replace specification, while protection to flashboard 2 as far as possible medium quickly through.
Shunting track 14 extends to flow inlet 12, and shunting track 14, which is located at flow inlet 12 and is provided with, is limited in branching block 61
The sealing block 15 in track 14 is shunted, extends shunting track and makes it easy to process, adding sealing block makes the installation of branching block more
Convenient, sealing block 15 can be realized with the shunting interference fit of track 14 and be fixed.
1 top of valve body is provided with the valve deck 7 with the sealing cooperation of valve body 1, and 7 top of valve deck is provided with installation operation mechanism 5
Mounting bracket 8,8 top of mounting bracket are provided with mounting platform 81, and operating mechanism 5 includes operation seat 51, valve stem nut 52 and hand
Wheel 53, operation seat 51 are positioned over mounting platform 81 and are provided with dismountable installation bolt 54 between mounting platform 81, operate
Seat 51 is provided with the rotation chamber 511 being rotatably assorted with valve stem nut 52, and valve stem nut 52 is located at part in rotation chamber 511 and turns
Needle roller thrust bearing 521 is provided between dynamic chamber 511,53 driving stem nut 52 of handwheel is rotated relative to operation seat 51, operates seat
51 sides are provided with lubrication channel 512, and 512 one end of lubrication channel extends to the external world and is provided with lubricating cup 54, and the other end extends to
Rotation chamber 511 is simultaneously opposite with needle roller thrust bearing 521, and lubricating cup 54 is provided with oil inlet towards the external world, is set towards lubrication channel 512
It is equipped with oil outlet, operating mechanism 5 is regard as a module, is installed on mounting bracket 8 after composable, can not be replaced before replacement
And it is inconvenient caused by processing, it assembles on demand, and by needle roller thrust bearing 521, make valve stem nut 52 that there is smaller torque
And abrasion is reduced, in addition, lubrication channel 512 keeps lubricating to the needle bearing moment, ensure service life.
1 top of valve body is provided with the stuffing box 9 for passing through for valve rod 4 and coordinating with the sealing of valve body 1, and 9 upper end of stuffing box is located at
The position that valve rod 4 passes through is provided with packing cavity 91, and filler 92 is filled in packing cavity 91, and 9 top of stuffing box is provided with filler
92 press the gland 93 with packing cavity 91 and gland 93 are fixed on to the gland fixing piece 94 of stuffing box 9, filler pressure
Pressure is equipped with pressing sleeve 95 between lid 93 and filler 92, and pressing sleeve 95 is sheathed on 4 periphery of valve rod, and 95 upper end of pressing sleeve is provided with extruding guide surface
951, it squeezes guide surface 951 and is continuously decreased with far from 95 upper surface centre-height of pressing sleeve, gland 93 is provided with to be worn for valve rod 4
The edge of the through-hole 931 crossed, 931 bottom of through-hole is provided with extrusion fit face 932 compatible with 951 shape of guide surface is squeezed,
When exerting a force to gland 93, gland 93 can be exerted a force by pressing sleeve 95 to filler 92 gland fixing piece 94, opposite filler
The mode of transfer force of gland 93 and 95 plane contact of pressing sleeve, by the way of inclined-plane cooperation, the two cooperation is even closer, makes filler 92
Sealing performance, the preferred fixed lead screw of gland fixing piece 94 can be improved by the active force of bigger.
Claims (5)
1. a kind of self-sealing gate valve, including valve body, flashboard, valve seat, valve rod and operating mechanism, stream is provided in the valve body
Road, the operating mechanism drive flashboard to lift, control cut-out and the unicom of runner, the valve seat is installed on stream by valve rod
Road simultaneously coordinates with flashboard in sealing, and the runner is provided with flow inlet and outflow port, it is characterised in that：The runner is located at
Shunt assembly is provided in the part of flow inlet, the shunt assembly includes shunting track, branching block and streaming buffer
Spring, the shunting track are respectively arranged at the flow path wall of both sides along runner direction, and the branching block both sides are respectively set
There is sliding in the slipping block of shunting track, the branching block is in coniform, and the small end of circular cone, towards flow inlet, described divides
Stream buffer spring is installed on each shunting track and resets branching block to close to the direction of flow inlet.
2. self-sealing gate valve according to claim 1, it is characterised in that：The branching block is by pedestal and circular cone, institute
The pedestal stated is threaded mounting post, and the circular cone is provided with the mounting groove with screw thread mounting post screw-thread fit.
3. self-sealing gate valve according to claim 1, it is characterised in that：The shunting track extends to flow inlet, institute
The shunting track stated is located at flow inlet and is provided with the sealing block being limited in branching block in shunting track.
4. self-sealing gate valve according to claim 1, it is characterised in that：The valve body top is provided with and valve seal
The valve deck of cooperation, valve deck top are provided with the mounting bracket of installation operation mechanism, mounting bracket top setting
It includes that operation seat, valve stem nut and handwheel, the operation seat are positioned over mounting platform to have mounting platform, the operating mechanism
And dismountable installation bolt is provided between mounting platform, the operation seat is provided with to be rotatably assorted with valve stem nut
Chamber is rotated, the valve stem nut, which is located between the part of rotation intracavitary and rotation chamber, is provided with needle roller thrust bearing, described
For handwheel driving stem nut relative to operation seat rotation, the operation seat side is provided with lubrication channel, the lubrication channel
One end extends to the external world and is provided with lubricating cup, and the other end extends to rotation chamber and lubricating cup opposite with needle roller thrust bearing, described
The external world is provided with oil inlet, lubrication channel is provided with oil outlet.
5. self-sealing gate valve according to claim 1, it is characterised in that：It is provided with above the valve body and is passed through for valve rod
And the stuffing box coordinated with valve seal, the stuffing box upper end is located at the position that valve rod passes through and is provided with packing cavity, described
Packing cavity in be filled with filler, the gland by filler pressing and packing cavity is provided with above the stuffing box and will be filled out
Material gland is fixed on the gland fixing piece of stuffing box, and pressure is equipped with pressing sleeve, the pressing sleeve between the gland and filler
It is sheathed on stem outer circumference, the pressing sleeve upper end is provided with extruding guide surface, and the extruding guide surface is with far from pressing sleeve upper end
Face centre-height continuously decreases, and the gland is provided with the through-hole passed through for valve rod, the edge of the via bottoms
It is provided with extrusion fit face compatible with guide surface shape is squeezed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721811905.2U CN207796127U (en) | 2017-12-22 | 2017-12-22 | self-sealing gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721811905.2U CN207796127U (en) | 2017-12-22 | 2017-12-22 | self-sealing gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207796127U true CN207796127U (en) | 2018-08-31 |
Family
ID=63282450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721811905.2U Active CN207796127U (en) | 2017-12-22 | 2017-12-22 | self-sealing gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207796127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838150A (en) * | 2022-05-20 | 2022-08-02 | 凯斯通阀门有限公司 | Elastic fireproof sealing high-pressure flat gate valve |
-
2017
- 2017-12-22 CN CN201721811905.2U patent/CN207796127U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838150A (en) * | 2022-05-20 | 2022-08-02 | 凯斯通阀门有限公司 | Elastic fireproof sealing high-pressure flat gate valve |
| CN114838150B (en) * | 2022-05-20 | 2022-11-18 | 凯斯通阀门有限公司 | Elastic fireproof sealing high-pressure flat gate valve |
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