CN214578950U

CN214578950U - Wedge type double-gate-plate gate valve

Info

Publication number: CN214578950U
Application number: CN202120567537.1U
Authority: CN
Inventors: 王世恩; 张玉彩; 魏超; 王青鹤; 秦晓龙
Original assignee: Kaifeng High And Middle Pressure Valve Co ltd
Current assignee: Kaifeng High And Middle Pressure Valve Co ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-11-02
Anticipated expiration: 2031-03-19

Abstract

The utility model relates to a wedge type double-gate-plate gate valve, which comprises a valve body, the valve body include valve body entrance point and valve body exit end, the inboard of valve body entrance point with the inboard of valve body exit end all correspond and be provided with the disk seat, be provided with first wedge type flashboard and second wedge type flashboard between two disk seats, the top of first wedge type flashboard and second wedge type flashboard is provided with the flashboard frame, be provided with top core and fixed pin on first wedge type flashboard and the second wedge type flashboard, be provided with the valve gap on the valve body of flashboard frame top, be provided with the valve rod on valve gap and the flashboard frame. The technical problem of medium leakage caused by untight joint of sealing surfaces due to poor automatic compensation function of the wedge-shaped flashboards caused by the fact that the installation clearance between the two wedge-shaped flashboards and the flashboard frame gradually becomes larger along with the increase of the use frequency is solved. The utility model discloses adjust, convenient to use, have extensive market prospect.

Description

Wedge type double-gate-plate gate valve

Technical Field

The utility model relates to a gate valve field, concretely relates to wedge type double-gate board gate valve.

Background

The double-gate valve is suitable for closed-circuit equipment on pipelines with water and sewage as media and is not allowed to be used for flow regulation and emptying. The structure and the working principle of the valve are consistent with those of a gate valve, and the opening and closing body drives the sealing surface of the valve seat to move up and down by the valve rod, so that a fluid channel can be connected or cut off. When the valve is partially opened, eddy current is generated on the back of the flashboard, so that erosion and vibration of the flashboard are easily caused, the sealing surface of the valve seat is also easily damaged, the repair is difficult, and the valve is usually suitable for the working condition that the flashboard is not required to be opened and closed frequently and is kept to be opened or closed completely. The double-flashboard gate valve has low machining precision of a sealing surface and a self-compensation function relative to a single-flashboard gate valve, and is particularly suitable for high-temperature high-pressure and large-caliber occasions.

The conventional structure wedge type double-gate-plate gate valve structure is located double gates by using the baffle plate from top to bottom, two wedge type gate plates of the existing double-gate-plate gate valve usually lean against the automatic compensation function of the closed position of the installation gap reserved between the two wedge type gate plates and the gate plate frame and the center of the two wedge type gate plates, and the installation gap reserved during installation can be gradually enlarged along with the overlong service time of the gate valve, so that the medium leakage caused by the untight closing of the gate valve is caused.

Disclosure of Invention

To prior art not enough, the utility model provides a thereby simple structure can reduce along with between two wedge flashboards that increase of frequency of use leads to and the flashboard frame wedge type double-gate-plate gate valve of wedge flashboard automatic compensation function variation that the installation clearance grow arouses gradually for overcome defect among the prior art.

The utility model adopts the technical proposal that: the utility model provides a wedge type double gate disc gate valve, includes the valve body, the valve body include valve body entrance point and valve body exit end, the inboard of valve body entrance point with the inboard of valve body exit end all correspond and be provided with the disk seat, be provided with first wedge type flashboard and second wedge type flashboard between two disk seats, the top of first wedge type flashboard and second wedge type flashboard is provided with the flashboard frame, be provided with apical core and fixed pin on first wedge type flashboard and the second wedge type flashboard, be provided with the valve gap on the valve body of flashboard frame top, be provided with the valve rod on valve gap and the flashboard frame.

Preferably, top heart top and top heart below equally divide and do not be provided with the fixed pin fixed slot, the fixed pin fixed slot adopt the convex cell body of constituteing by first fixed slot and second fixed slot, first fixed slot is located first wedge type flashboard, the second fixed slot is located the second wedge type flashboard, the cross-section of fixed pin fixed slot adopt virtual I shape structure, the quantity of fixed pin fixed slot and the quantity of fixed pin all adopt two, the fixed pin adopts I shape shaft-like structure, two fixed pin one-to-ones are installed two the fixed pin fixed slot on.

Preferably, be located inboard valve gap of valve body on from the bottom up in proper order the cover be equipped with sealing washer and sealing washer clamping ring, the valve body inboard of sealing washer clamping ring top is provided with tears the clamping ring stop device that the ring-opening is constituteed by a plurality of, the valve body of clamping ring stop device top on be provided with the valve gap fixed plate, valve gap fixed plate and valve gap on be provided with sealing ring housing screw, be provided with valve gap set screw on valve gap fixed plate and the valve body.

Preferably, be located the valve body top part valve gap suit on the valve rod, be provided with the valve rod seal groove on the top of valve gap, the valve rod seal groove has set gradually packing clamping ring, sealing filler and packing ring from last to down, is provided with the seal clamp plate on the packing clamping ring, is provided with the pterygoid lamina on the valve gap, is provided with the split pin round pin axle on the pterygoid lamina, is provided with the split pin on split pin round pin axle and the seal clamp plate, is provided with adjusting nut on the split pin of seal clamp plate top.

Preferably, two the tip of fixed pin fixed slot equally divide and do not be provided with the fixed pin mounting groove, the fixed pin mounting groove adopt the virtual circular slot-shaped structure of constituteing by first blind hole and second blind hole, first blind hole is located first wedge type flashboard, the second blind hole is located the second wedge type flashboard, the quantity of fixed pin mounting groove adopt two, two fixed pin mounting groove symmetric distribution in the both sides of apical centre.

Preferably, the cross section of the first fixing groove and the cross section of the second fixing groove are both in a T shape.

Preferably, the sealing washer adopt annular structure, the thickness of sealing washer bottom thickens gradually along with the increase of height, the partial shape and the sealing washer shape of valve gap cooperate, be provided with the flange on the valve rod of valve gap fixed plate top, be provided with the flange mount between flange and the valve gap fixed plate on, be provided with electric drive device on the flange, electric drive device and valve rod transmission are connected.

The utility model has the advantages that: firstly, the utility model reduces the technical problem of medium leakage caused by untight fit of the sealing surface due to the poor automatic compensation function of the wedge-shaped gate caused by the gradual increase of the installation clearance between the two wedge-shaped gates and the gate frame along with the increase of the use frequency;

secondly, the fixing pin fixing groove and the fixing pin mounting groove are arranged, so that the fixing pin is convenient to mount;

finally, the utility model discloses be located inboard valve gap of valve body on from the bottom up in proper order the cover be equipped with sealing washer and sealing washer clamping ring, be provided with the clamping ring stop device who tears the ring and constitute by a plurality of in the valve body inboard of sealing washer clamping ring top, and the sealing washer adopt the loop configuration, the thickness of sealing washer bottom thickens gradually along with the increase of height, the partial shape and the sealing washer shape of valve gap cooperate, make the sealing washer be in through last sealing ring housing screw clamping ring stop device combine the forcing of sealing washer clamping ring to warp down, be convenient for seal the clearance between valve body and the valve gap.

The utility model has the advantages of simple structure, convenient operation, ingenious design, good social and economic benefits, and easy popularization and application.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged schematic view of detail a of fig. 1.

Fig. 3 is a partially enlarged schematic view of detail B of fig. 1.

Fig. 4 is a right side view of the first wedge plate of the present invention.

Fig. 5 is a left side view of the second wedge plate of the present invention.

Detailed Description

As shown in fig. 1, 2, 3, 4, 5, a wedge type double-gate-plate gate valve, including valve body 1, valve body 1 include valve body entrance point and valve body exit end, the inboard of valve body entrance point with the inboard of valve body exit end all correspond and be provided with disk seat 2, be provided with first wedge type flashboard 3 and second wedge type flashboard 4 between two disk seats 2, the top of first wedge type flashboard 3 and second wedge type flashboard 4 is provided with flashboard frame 5, be provided with apical core 6 and fixed pin 7 on first wedge type flashboard 3 and the second wedge type flashboard 4, be provided with valve gap 8 on the valve body 1 of flashboard frame 5 top, be provided with valve rod 9 on valve gap 8 and the flashboard frame 5.

6 tops of centre of a push up and 6 below of centre of a push up equally and do not be provided with the fixed pin fixed slot, the fixed pin fixed slot adopt the convex cell body of constituteing by first fixed slot 10 and second fixed slot 11, first fixed slot 10 is located first wedge flashboard 3, second fixed slot 11 is located second wedge flashboard 4, the cross-section of fixed pin fixed slot adopt virtual I shape structure, the quantity of fixed pin fixed slot and the quantity of fixed pin 7 all adopt two, fixed pin 7 adopts the shaft-like structure of I shape, two fixed pin 7 one-to-ones are installed two the fixed pin fixed slot on. Two the tip of fixed pin fixed slot equally divide and do not be provided with the fixed pin mounting groove, the fixed pin mounting groove adopt the virtual circular slot-like structure of constituteing by first blind hole 26 and second blind hole 27, first blind hole 26 is located first wedge flashboard 3, second blind hole 27 is located second wedge flashboard 4, the quantity of fixed pin mounting groove adopt two, two fixed pin mounting groove symmetric distribution in the both sides of apical center 6. The cross-section of first fixed slot 10 and the cross-section of second fixed slot 11 equally divide and do not adopt the T font, first fixed slot 10 adopt the cross-section of seting up towards the lateral surface of first wedge flashboard 3 along the inboard of first wedge flashboard 3 be T font slot-shaped structure, the cross-section that second fixed slot 11 adopted to set up towards the lateral surface of second wedge flashboard 4 along the inboard of second wedge flashboard 4 is T font slot-shaped structure. The bottom surface of the first blind hole 26 and the bottom surface of the first fixing groove 10 are located on the same axis, and the bottom surface of the second blind hole 27 and the bottom surface of the second fixing groove 11 are located on the same axis. The mounting of the fixing pin 7 is facilitated. And the radian of the fixing pin fixing groove is 90 degrees. Install 6 backs to predetermineeing the position with the heart of a top, pass through fixed pin 7 again the fixed pin mounting groove penetrate the fixed pin fixed slot, corresponding rotatory first wedge flashboard 3 and second wedge flashboard 4 more conveniently install fixed pin 7 to predetermineeing the mounted position, the first wedge flashboard 3 of being convenient for and second wedge flashboard 4 are at the further fixed of flashboard frame 5.

The valve cover 8 positioned on the inner side of the valve body 1 is sequentially sleeved with a sealing ring 12 and a sealing ring pressing ring 13 from bottom to top, the sealing ring 12 and the sealing ring pressing ring 13 both adopt a circular ring-shaped structure, the sealing ring 12 adopts an annular structure, the thickness of the bottom of the sealing ring 12 becomes thicker gradually along with the increase of the height, the shape of part of the valve cover 8 is matched with the shape of the sealing ring 12, the inner side of the valve body 1 above the sealing ring pressing ring 13 is provided with a pressing ring limiting device consisting of a plurality of tearing rings 14, the pressing ring limiting device is of a virtual annular structure, the tearing rings 14 are of an arc structure, the bottom surfaces of the tearing rings 14 are movably connected with the top surface of the sealing ring pressing ring 13, the pressure ring limiting device is characterized in that a valve cover fixing plate 15 is arranged on the valve body 1 above the pressure ring limiting device, sealing ring compression screws 16 are arranged on the valve cover fixing plate 15 and the valve cover 8, and valve cover fixing screws 17 are arranged on the valve cover fixing plate 15 and the valve body 1. The sealing ring 12 is forced to deform by tightening the sealing ring compression screw 16 under the combination of the compression ring limiting device and the sealing ring compression ring 13, so that the gap between the valve body 1 and the valve cover 8 is sealed conveniently. Reducing leakage of medium from the gap between the valve body 1 and the bonnet 8

Lie in the partial valve gap 8 suit of valve body 1 top on valve rod 9, be provided with valve rod seal groove 18 on valve gap 8's the top, valve rod seal groove 18 has set gradually packing clamping ring 19, sealing packing 20 and packing ring 21 from last to down, conveniently seals the clearance between valve gap 8 and the valve rod 9 through sealing packing 20, reduces the seepage between the clearance of medium between valve gap 8 and the valve rod 9. The packing press ring 19 is provided with a sealing press plate 31, the valve cover 8 is provided with a wing plate 22, the wing plate 22 is provided with a cotter pin shaft 23, the cotter pin shaft 23 and the sealing press plate 31 are provided with cotters 24, and the cotter pin 24 above the sealing press plate 31 is provided with an adjusting nut 25. When the sealing packing 20 is gradually worn away along with the increase of the service life, the gap between the sealing packing 20 and the valve rod 9 is increased, and the adjusting nut 25 is screwed, so that the adjusting nut 25 forces the sealing pressing plate 31 to move downwards to drive the packing pressing ring 19 to move downwards so as to press the sealing packing 20 to deform again, and the gap between the sealing packing 20 and the valve rod 9 is reduced.

An upper flange 28 is arranged on the valve rod 9 above the valve cover fixing plate 15, an upper flange fixing frame 29 is arranged between the upper flange 28 and the valve cover fixing plate 15, an electric driving device 30 is arranged on the upper flange 28, and the electric driving device 30 is in transmission connection with the valve rod 9. The opening and closing of the product is facilitated by the provision of the electric drive means 30.

The use method of the product is as follows: as shown in fig. 1, 2, 3, 4, and 5, the product is installed at a corresponding installation position of the corresponding system, when the product needs to be opened, the electric driving device 30 drives the valve rod 9 to move upward, and the valve rod 9 drives the corresponding gate plate frame 5 to move upward to further drive the first wedge-type gate plate 3 and the second wedge-type gate plate 4 to a preset opening position, so that the opening of the product is completed.

When the product needs to be closed, the electric driving device 30 drives the valve rod 9 to move upwards, the valve rod 9 drives the corresponding gate plate frame 5 to move upwards so as to drive the first wedge-type gate plate 3 and the second wedge-type gate plate 4 to a preset closing position, and after the preset closing position is reached, the first wedge-type gate plate 3 and the second wedge-type gate plate 4 adjust the corresponding sealing surface of the first wedge-type gate plate 3 and the corresponding sealing surface of the second wedge-type gate plate 4 to the medium flow in the completely closed interception system of the first wedge-type gate plate 3 and the corresponding valve seat 2 and the second wedge-type gate plate 4 and the corresponding valve seat 2 by utilizing the self gravity of the first wedge-type gate plate 3 and the second wedge-type gate plate 4 under the limiting of the gate plate frame 5 and the two fixing pins 7 in combination with the guiding action of the top center 6.

Through this embodiment, further fix first wedge flashboard 3 and second wedge flashboard 4 through set up fixed pin 7 at first wedge flashboard 3 and second wedge flashboard 4 to reduce the technical problem that the medium that brings because of the inseparable medium that causes of sealed face laminating that the automatic compensation function of wedge flashboard that thereby reduces to cause along with the gradual grow of installation clearance between two wedge flashboards that the increase of frequency of use leads to and the flashboard frame reveals.

The utility model discloses a satisfy a wedge type double-disc gate valve in gate valve field worker needs, make the utility model discloses extensive market prospect has.

Claims

1. The utility model provides a wedge type double-gate board gate valve which characterized in that: including valve body (1), valve body (1) include valve body entrance point and valve body exit end, the inboard of valve body entrance point with the inboard of valve body exit end all correspond and be provided with disk seat (2), be provided with first wedge flashboard (3) and second wedge flashboard (4) between two disk seats (2), the top of first wedge flashboard (3) and second wedge flashboard (4) is provided with flashboard frame (5), be provided with apical lamella (6) and fixed pin (7) on first wedge flashboard (3) and second wedge flashboard (4), be provided with valve gap (8) on valve body (1) of flashboard frame (5) top, be provided with valve rod (9) on valve gap (8) and flashboard frame (5).

2. A wedge-type double-gate disc gate valve according to claim 1, wherein: top heart (6) top and top heart (6) below equally divide and do not be provided with the fixed pin fixed slot, the fixed pin fixed slot adopt the convex cell body of constituteing by first fixed slot (10) and second fixed slot (11), first fixed slot (10) are located first wedge flashboard (3), second fixed slot (11) are located second wedge flashboard (4), the cross-section of fixed pin fixed slot adopt virtual I shape structure, the quantity of fixed pin fixed slot and the quantity of fixed pin (7) all adopt two, fixed pin (7) adopt I shape rod-like structure, two fixed pin (7) one-to-ones are installed two the fixed pin fixed slot on.

3. A wedge-type double-gate disc gate valve according to claim 1, wherein: lie in valve gap (8) of valve body (1) inboard from the bottom up and overlap in proper order and be equipped with sealing washer (12) and sealing washer clamping ring (13), valve body (1) inboard of sealing washer clamping ring (13) top is provided with tears the clamping ring stop device that ring (14) are constituteed by a plurality of, valve body (1) of clamping ring stop device top on be provided with valve gap fixed plate (15), valve gap fixed plate (15) and valve gap (8) on be provided with sealing ring housing screw (16), be provided with valve gap set screw (17) on valve gap fixed plate (15) and valve body (1).

4. A wedge-type double-gate disc gate valve according to claim 1, wherein: lie in valve body (1) top partial valve gap (8) suit on valve rod (9), be provided with valve rod seal groove (18) on the top of valve gap (8), valve rod seal groove (18) from last to having set gradually packing clamping ring (19), sealing filler (20) and packing ring (21) down, be provided with seal clamp plate (31) on packing clamping ring (19), be provided with pterygoid lamina (22) on valve gap (8), be provided with split pin round pin axle (23) on pterygoid lamina (22), be provided with split pin (24) on split pin round pin axle (23) and seal clamp plate (31), be provided with adjusting nut (25) on split pin (24) of seal clamp plate (31) top.

5. A wedge-type double-gate disc gate valve according to claim 2, wherein: two the tip of fixed pin fixed slot equally divide and do not be provided with the fixed pin mounting groove, the fixed pin mounting groove adopt the virtual circular groove form structure of constituteing by first blind hole (26) and second blind hole (27), first blind hole (26) are located first wedge flashboard (3), second blind hole (27) are located second wedge flashboard (4), the quantity of fixed pin mounting groove adopt two, two fixed pin mounting groove symmetric distribution in the both sides of apical centre (6).

6. A wedge-type double-gate disc gate valve according to claim 2, wherein: the cross section of the first fixing groove (10) and the cross section of the second fixing groove (11) are respectively in a T shape.

7. A wedge-type double-gate disc gate valve according to claim 3, wherein: sealing washer (12) and sealing washer clamping ring (13) all adopt the loop configuration, the thickness of sealing washer (12) bottom thickens gradually along with the increase of height, the partial shape and sealing washer (12) shape of valve gap (8) cooperate, be provided with flange (28) on valve rod (9) of valve gap fixed plate (15) top, go up and be provided with flange mount (29) between flange (28) and valve gap fixed plate (15), go up and be provided with electric drive device (30) on flange (28), electric drive device (30) and valve rod (9) transmission are connected.