CN212155867U - Wedge type hard sealing gate valve - Google Patents
Wedge type hard sealing gate valve Download PDFInfo
- Publication number
- CN212155867U CN212155867U CN202020668326.2U CN202020668326U CN212155867U CN 212155867 U CN212155867 U CN 212155867U CN 202020668326 U CN202020668326 U CN 202020668326U CN 212155867 U CN212155867 U CN 212155867U
- Authority
- CN
- China
- Prior art keywords
- valve
- wedge
- packing
- valve body
- disk seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model belongs to the gate valve field, concretely relates to wedge type hard seal gate valve, which comprises a valve body, the valve rod, operating device, be equipped with runner and the valve pocket that supplies the medium circulation in the valve body, the valve body top is connected with the valve gap, be equipped with the wedge type flashboard in the valve pocket, the valve rod passes valve gap and both ends and connects operating device and wedge type flashboard respectively, the valve body is equipped with an annular disk seat spacing groove on two terminal surfaces of wedge type flashboard respectively, two disk seat spacing grooves are for slope setting and inclination and wedge type flashboard side inclination unanimous, be equipped with the disk seat in the disk seat spacing groove, form sealed cooperation relation between disk seat and the wedge type flashboard, be equipped with first spring between disk seat. The utility model discloses make the scouring action greatly reduced of fluid to the disk seat and erode the incline direction that the direction is two terminal surfaces along the wedge flashboard, the disk seat is more stable like this, and is replaceable.
Description
Technical Field
The utility model belongs to the gate valve field, concretely relates to wedge type hard seal gate valve.
Background
A wedge gate valve is a common gate valve structure. The wedge gate valve utilizes a V-shaped gate plate to wedge with a V-shaped valve seat in a valve body passage to realize sealing, as shown in the structure of the wedge gate valve disclosed in patent CN 201120014029.7. The V-shaped valve seat and the valve body are welded and fixed, but the valve seat cannot be replaced due to abrasion in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the shortcoming and not enough that prior art exists, and provide a wedge type hard seal gate valve.
The utility model discloses the technical scheme who takes as follows: a wedge type hard seal gate valve comprises a valve body, a valve rod and an operating mechanism, wherein a flow channel for medium circulation is arranged in the valve body, a valve cavity is arranged in the valve body along the vertical direction of the flow channel, a valve cover is connected above the valve body to seal the valve cavity, a wedge-type flashboard which moves up and down along the vertical direction of the flow passage is arranged in the valve cavity, the valve rod penetrates through the valve cover, two ends of the valve rod are respectively connected with the operating mechanism and the wedge-type flashboard, the operating mechanism drives the valve rod to move along the vertical direction of the flow channel, two end faces of the valve body facing the wedge-type flashboard are respectively provided with an annular valve seat limiting groove, the two valve seat limiting grooves are obliquely arranged, the inclination of the two valve seat limiting grooves is consistent with that of the side face of the wedge-type flashboard, the valve seat limiting groove is internally provided with an annular valve seat which can slide relative to the valve body, the valve seat and the wedge-type gate plate form a sealing fit relation, and a first spring is arranged between the valve seat and the bottom surface of the valve seat limiting groove.
And O-shaped sealing rings are respectively arranged between the outer ring surface and the inner ring surface of the annular valve seat and the inner wall of the valve seat limiting groove.
Be equipped with the seal installation groove between valve gap and the valve body, supreme sealing ring, the packing ring of being equipped with in proper order down is equipped with in the seal installation groove, the valve body is provided with four ring openings with the valve gap junction, four ring openings form limiting displacement to the packing ring, pass through between valve gap and the valve body.
The bottom of the sealing installation groove is provided with an inclined surface structure, the sealing ring is a wedge-shaped structure matched with the inclined surface of the sealing installation groove, the wedge-shaped angle of the sealing ring is smaller than the inclined angle of the inclined surface of the bottom of the sealing installation groove by 2-6 degrees, and the inner side of the sealing ring is provided with a long and inwards-recessed annular groove.
The lower end of the sealing ring is provided with a plane.
The packing assembly is arranged at the joint of the valve rod and the valve cover, the packing pressing sleeve is arranged at the top of the packing assembly, the sealing gasket is arranged at the bottom of the packing pressing sleeve, the packing pressing plate is arranged at the top of the packing pressing sleeve, the movable joint bolt penetrates through the packing pressing plate, the tensioning ring is fixedly arranged on the outer side of one end of the valve cover, one end of the movable joint bolt is movably connected with the tensioning ring through a connecting shaft, and the other end of the movable joint bolt is connected with the packing pressing.
The packing component sequentially comprises an upper packing piece, a second spring and a lower packing piece from top to bottom, the upper packing piece and the lower packing piece are formed by overlapping a plurality of packing blocks, one side, attached to each other, of any two packing blocks is provided with a semicircular air storage groove penetrating through the packing blocks, and when any two packing blocks are attached to each other, the semicircular air storage grooves in the two packing blocks can enclose into an air storage circular hole.
The magnetic suction seat is arranged at one end, located in a flow channel where media flow in, of the valve body, and a magnetic part is fixed on the outer wall of the magnetic suction seat.
The magnetic attraction seat is characterized in that a slot is formed in the outer wall of the magnetic attraction seat, the magnetic piece is connected with the slot in a pluggable mode, and a silica gel sleeve wraps the magnetic piece.
The magnetic suction seat is detachably connected with the valve body through a bolt and a nut.
The utility model has the advantages as follows: set up annular disk seat spacing groove on two terminal surfaces of valve body orientation wedge flashboard, set up annular disk seat at the disk seat spacing inslot and then form limiting displacement to the disk seat, the scouring action greatly reduced and the scouring direction of fluid to the disk seat be along the incline direction of two terminal surfaces of wedge flashboard, and the disk seat is more stable like this, and is replaceable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings obtained from these drawings still belong to the scope of the present invention without inventive laboriousness.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of A in FIG. 1;
FIG. 3 is an enlarged view of B in FIG. 1;
FIG. 4 is an enlarged schematic view of C of FIG. 1;
in the figure, 1, a valve body; 101, a valve seat limiting groove; 2, a valve cover; 3, a wedge type gate plate; 4, a valve rod; 5, an operating mechanism; 6, a valve seat; 7, a first spring; 8, a sealing ring; 801, an annular groove; 802, planar; 9, a gasket; 10, opening a ring by four times; 11, an O-shaped sealing ring; 12, packing and pressing; 13, a sealing gasket; 14, a packing press plate; 15, swing bolts; 16, a tensioning ring; 17, an upper padding element; 18, a second spring; 19, a lower packing element; 20, gas storage circular holes; 21, magnetic attraction seats; 22, a magnetic member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of expression and should not be construed as limitations to the embodiments of the present invention, and the following embodiments do not describe the embodiments one by one.
The terms of direction and position in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings. Accordingly, the use of directional and positional terms is intended to illustrate and understand the present invention and is not intended to limit the scope of the invention.
As shown in fig. 1, a wedge-type hard seal gate valve comprises a valve body 1, a valve rod 4 and an operating mechanism 5, wherein a flow channel for medium circulation is arranged in the valve body 1, a valve cavity is arranged in the valve body 1 along the vertical direction of the flow channel, a valve cover 2 is connected above the valve body 1 to seal the valve cavity, a wedge-type gate plate 3 moving up and down along the vertical direction of the flow channel is arranged in the valve cavity, the valve rod 4 penetrates through the valve cover 2, two ends of the valve rod are respectively connected with the operating mechanism 5 and the wedge-type gate plate 3, the operating mechanism 5 drives the valve rod 4 to move along the vertical direction of the flow channel, as shown in fig. 2, two end faces of the valve body 1 facing the wedge-type gate plate 3 are respectively provided with an annular valve seat limiting groove 101, the two valve seat limiting grooves 101 are obliquely arranged, the inclination of the two valve seat limiting, and a sealing fit relation is formed between the valve seat 6 and the wedge type gate plate 3, and a first spring 7 is arranged between the valve seat 6 and the bottom surface of the valve seat limiting groove 101. Set up annular disk seat spacing groove on two terminal surfaces of valve body orientation wedge flashboard, set up annular disk seat at the disk seat spacing inslot and then form limiting displacement to the disk seat, the scouring action greatly reduced and the scouring direction of fluid to the disk seat be along the incline direction of two terminal surfaces of wedge flashboard, and the disk seat is more stable like this, and is replaceable. The first spring 7 pushes the valve seat 6 to improve the hard sealing effect between the valve seat 6 and the wedge type gate plate 3.
And O-shaped sealing rings 11 are respectively arranged between the outer ring surface and the inner ring surface of the annular valve seat 6 and the inner wall of the valve seat limiting groove 101.
As shown in fig. 3, be equipped with sealed mounting groove between valve gap 2 and the valve body 1, be equipped with in the sealed mounting groove from supreme sealing ring 8, the packing ring 9 of being equipped with in proper order down, valve body 1 is provided with four ring-opening 10 with valve gap 2 junction, four ring-opening 10 forms limiting displacement to packing ring 9, pass through between valve gap 2 and the valve body 1. Therefore, the pressure below the valve cover 2 can push the valve cover to press the sealing ring 8, and the larger the pressure is, the better the sealing effect of the sealing ring 8 is.
The bottom of the sealing installation groove is provided with an inclined surface structure, the sealing ring 8 is a wedge-shaped structure matched with the inclined surface of the sealing installation groove, the wedge-shaped angle of the sealing ring 8 is smaller than the inclined angle of the inclined surface at the bottom of the sealing installation groove by 2-6 degrees, and the inner side of the sealing ring 8 is provided with a long and inwards-recessed annular groove 801. The arrangement of the annular groove 801 and the difference of the inclination angle between the bottom inclined planes of the sealing ring 8 and the sealing installation groove enable the sealing ring to have better deformation compensation capability and more reliable stress sealing.
The lower end of the sealing ring 8 has a flat surface 802. The arrangement of the plane 802 ensures that the lower end of the sealing ring 8 is completely positioned above the inclined plane at the bottom of the sealing installation groove, and the sealing effect is further improved.
The valve comprises a valve rod 4, a valve cover 2 and a packing assembly, wherein the joint of the valve rod 4 and the valve cover 2 is provided with the packing assembly, the top of the packing assembly is provided with a packing pressing sleeve 12, the bottom of the packing assembly is provided with a sealing gasket 13, the top of the packing pressing sleeve 12 is provided with a packing pressing plate 14, the packing pressing plate 14 is provided with an eyelet bolt 15 in a penetrating mode, the outer side of one end of the valve cover 2 is fixedly provided with a tensioning ring 16, one end of the eyelet bolt 15 is movably connected with the tensioning ring 16 through a.
As shown in fig. 4, the packing assembly sequentially comprises an upper packing member 17, a second spring 18 and a lower packing member 19 from top to bottom, the upper packing member 17 and the lower packing member 19 are formed by overlapping a plurality of packing blocks, semicircular gas storage grooves penetrating through the packing blocks are formed in one side, where any two packing blocks are attached to each other, and when any two packing blocks are attached to each other, the semicircular gas storage grooves respectively formed in the two packing blocks can enclose a gas storage circular hole 20.
Because each packing block is in forced sealing by extruding an inner circle and an outer circle, air exists between each packing block when a plurality of packing blocks are installed. Through the arrangement of the air storage grooves, the air storage circular holes 20 can be formed between any two attached packing blocks. When a plurality of filler blocks are installed, air is extruded into the circular air storage hole 19. The extruded air can extrude the inner wall of the air storage circular hole 19, and further apply force to the corresponding packing blocks so as to enhance the sealing performance between the inner circular surface of the packing blocks and the valve rod and enhance the sealing performance between the outer circular surface of the packing blocks and the valve cover. Meanwhile, the second spring 18 is adopted between the upper packing element 18 and the lower packing element 19, so that the packing seal assembly adopts a spring + packing structure. The higher the pressure in the valve cavity is, the better the sealing performance of the packing seal assembly is, and the packing has low dissipation performance.
One end of the valve body 1, which is positioned at a flow passage into which a medium flows, is provided with a magnetic attraction seat 21, and a magnetic part 22 is fixed on the outer wall of the magnetic attraction seat 21.
When the medium contains magnetic impurities, the wedge-type gate plate 3 made of metal is easy to adsorb the magnetic impurities on the surface, so that the sealing performance between the gate plate 5 and the valve body 1 is influenced, and even the gate plate 5 is blocked, therefore, the magnetic attraction seat 16 is arranged, the magnetic block 17 is inserted into the slot 18, the magnetic impurities in the medium are adsorbed by the magnetic block 17, and the service life of the wedge-type gate plate 3 is further prolonged.
The outer wall of the magnetic attraction seat 21 is provided with a slot, the magnetic piece 22 is connected with the slot in a pluggable mode, and a silica gel sleeve wraps the magnetic piece 22.
The magnetic attraction seat 21 is detachably connected with the valve body 1 through a bolt and a nut. The realization can be dismantled, can clear up.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (10)
1. The utility model provides a hard sealing gate valve of wedge type, includes valve body (1), valve rod (4), operating device (5), be equipped with the runner that supplies the medium circulation in valve body (1) and valve body (1) is equipped with the valve pocket along runner vertical direction, valve body (1) top is connected with valve gap (2) and makes the valve pocket seal, be equipped with wedge type flashboard (3) that reciprocate along runner vertical direction in the valve pocket, operating device (5) and wedge type flashboard (3) are connected respectively at valve gap (2) and both ends are passed in valve rod (4), operating device (5) drive valve rod (4) move along runner vertical direction, its characterized in that: be equipped with an annular disk seat spacing groove (101) on two terminal surfaces of valve body (1) orientation wedge flashboard (3) respectively, two disk seat spacing grooves (101) set up and the inclination is unanimous with wedge flashboard (3) side inclination for the slope, be equipped with annular disk seat (6) that relative valve body (1) can slide in disk seat spacing groove (101), form sealed cooperation relation between disk seat (6) and wedge flashboard (3), be equipped with first spring (7) between disk seat (6) and disk seat spacing groove (101) bottom surface.
2. The wedge-type hard seal gate valve of claim 1, wherein: and O-shaped sealing rings (11) are respectively arranged between the outer ring surface and the inner ring surface of the valve seat (6) and the inner wall of the valve seat limiting groove (101).
3. The wedge-type hard seal gate valve of claim 1, wherein: be equipped with sealed mounting groove between valve gap (2) and valve body (1), be equipped with in the sealed mounting groove from supreme sealing ring (8), packing ring (9) of being equipped with down in proper order, valve body (1) are provided with four ring opening (10) with valve gap (2) junction, four ring opening (10) form limiting displacement to packing ring (9), pass through between valve gap (2) and valve body (1).
4. The wedge-type hard seal gate valve of claim 3, wherein: the sealing mounting groove bottom has the inclined plane structure, sealing ring (8) are for being the wedge structure with sealing mounting groove inclined plane adaptation, the wedge angle of sealing ring (8) is less than the inclination 2-6 on sealing mounting groove bottom inclined plane, sealing ring (8) inboard is equipped with microscler and inside sunken ring channel (801).
5. The wedge-type hard seal gate valve of claim 3, wherein: the lower end of the sealing ring (8) is provided with a plane (802).
6. The wedge-type hard seal gate valve of claim 1, wherein: the valve comprises a valve rod (4), a valve cover (2) and a packing assembly, wherein the joint of the valve rod (4) and the valve cover (2) is provided with the packing assembly, the top of the packing assembly is provided with a packing pressing sleeve (12), the bottom of the packing assembly is provided with a sealing gasket (13), the top of the packing pressing sleeve (12) is provided with a packing pressing plate (14), the packing pressing plate (14) is provided with an eyelet bolt (15) in a penetrating mode, the outer side of one end of the valve cover (2) is fixedly provided with a tensioning ring (16), one end of the eyelet bolt (15) is movably connected with the tensioning ring (16).
7. The wedge-type hard seal gate valve of claim 6, wherein: the packing assembly sequentially comprises an upper packing piece (17), a second spring (18) and a lower packing piece (19) from top to bottom, wherein the upper packing piece (17) and the lower packing piece (19) are formed by overlapping a plurality of packing blocks, semicircular air storage grooves penetrating through the packing blocks are formed in one side, which is mutually attached, of any two packing blocks, and when any two packing blocks are mutually attached, the semicircular air storage grooves respectively formed in the two packing blocks can enclose a circular air storage hole (20).
8. The wedge-type hard seal gate valve of claim 1, wherein: one end, located at a medium inflow runner, of the valve body (1) is provided with a magnetic suction seat (21), and a magnetic part (22) is fixed on the outer wall of the magnetic suction seat (21).
9. The wedge-type hard seal gate valve of claim 8, wherein: the magnetic attraction seat is characterized in that a slot is formed in the outer wall of the magnetic attraction seat (21), the magnetic piece (22) is connected with the slot in a pluggable mode, and a silica gel sleeve wraps the magnetic piece (22).
10. The wedge-type hard seal gate valve of claim 8, wherein: the magnetic suction seat (21) is detachably connected with the valve body (1) through a bolt and a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020668326.2U CN212155867U (en) | 2020-04-27 | 2020-04-27 | Wedge type hard sealing gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020668326.2U CN212155867U (en) | 2020-04-27 | 2020-04-27 | Wedge type hard sealing gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212155867U true CN212155867U (en) | 2020-12-15 |
Family
ID=73722373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020668326.2U Active CN212155867U (en) | 2020-04-27 | 2020-04-27 | Wedge type hard sealing gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212155867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669472A (en) * | 2021-08-04 | 2021-11-19 | 凯瑞特阀业有限公司 | Integral forged high-sealing gate valve |
-
2020
- 2020-04-27 CN CN202020668326.2U patent/CN212155867U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669472A (en) * | 2021-08-04 | 2021-11-19 | 凯瑞特阀业有限公司 | Integral forged high-sealing gate valve |
| CN113669472B (en) * | 2021-08-04 | 2024-04-23 | 凯瑞特阀业集团有限公司 | Integral forging high sealing gate valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212155867U (en) | Wedge type hard sealing gate valve | |
| CN210599372U (en) | Pump head assembly is retrieved to plunger type measuring pump weeping | |
| CN105065700A (en) | Self-sealing gate valve structure | |
| CN211009895U (en) | Hydraulic oil cylinder | |
| CN108869764B (en) | High leakproofness butterfly valve | |
| CN212407646U (en) | Valve seat with pressure memory function and ball valve thereof | |
| CN214037049U (en) | Double sealing structure for valve body and valve cover of fixed ball valve | |
| CN211501714U (en) | Control ball valve convenient to installation | |
| CN210318609U (en) | Low-temperature upper-mounted type fixed ball valve with bidirectional double-valve-seat sealing function | |
| CN207064680U (en) | A kind of valve seat sealing mechanism and the flat gate valve using the sealing mechanism | |
| CN112610716A (en) | Valve seat sealing structure | |
| CN216279478U (en) | Thin type shearing valve | |
| CN100447464C (en) | Non-return valve and pump with the same | |
| CN210461774U (en) | Valve seat structure adopting belleville spring loaded metal seal fixed ball valve and ball valve | |
| CN218818100U (en) | Oil-free lubrication sealing assembly of liquid drive hydrogen compressor piston | |
| CN210106627U (en) | Novel high-strength gate valve | |
| CN211145406U (en) | Track balance wedge type gate valve | |
| CN215257983U (en) | Pneumatic reversing valve | |
| CN210716080U (en) | Soft sealing ball valve | |
| CN214946556U (en) | Fixing structure of low-temperature ball valve | |
| CN219809331U (en) | Damping type gas spring | |
| CN216279477U (en) | Flashboard totally enclosed formula shear valve | |
| CN210920230U (en) | Ball check valve | |
| CN116066647B (en) | Automatic return mechanism of rotary joint sealing ring | |
| CN212657277U (en) | Double-gate valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |