CN210344357U

CN210344357U - Wedge gate valve

Info

Publication number: CN210344357U
Application number: CN201920625056.4U
Authority: CN
Inventors: 项策; 陈永刚; 汪德维; 曾清水
Original assignee: Tanggong Valve Group Co ltd
Current assignee: Tanggong Valve Group Co ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-04-17
Anticipated expiration: 2029-04-30

Abstract

The utility model discloses a wedge gate valve, including the valve body, be equipped with the runner that supplies the medium circulation in the valve body, the border flow perpendicular direction is equipped with the valve pocket in the valve body, be equipped with on the valve pocket with the valve body seal complex valve gap, be equipped with in the valve pocket and carry out the wedge flashboard that reciprocates along the runner perpendicular direction, be equipped with on two terminal surfaces of valve body orientation wedge flashboard with the sealed inclined plane of flashboard seal complex, the flashboard orientation be equipped with first recess on the terminal surface on sealed inclined plane, be equipped with first sealing washer in the first recess, first sealing washer protrusion in first recess and with sealed inclined plane offsets. The beneficial effects of the utility model are that the flashboard receives wearing and tearing back, only needs to take out first sealing washer from first recess, and the first sealing washer of renewal just can make and have better leakproofness again between flashboard and the sealed inclined plane to the life of gate valve has been prolonged.

Description

Wedge gate valve

Technical Field

The utility model relates to a valve field, in particular to wedge gate valve.

Background

The gate valve refers to a valve in which a gate moves in a vertical direction of a valve stem. The gate valve can only be fully opened and fully closed in the pipeline, and cannot be adjusted and throttled. The gate valve is used as a stop medium, wherein the medium comprises water, oil and steam, when the gate valve works, the hand wheel drives the valve rod to drive the gate plate through a certain external force, so that the gate plate presses the bottom of the valve body, and the sealing performance is ensured through the matching between the gate plate and the sealing inclined surface of the valve body.

The gate valve generally includes valve body, valve rod and flashboard, and the both ends of valve body are equipped with the runner, and the runner port is equipped with the flange, and the valve body passes through the flange to be connected with the pipeline. The gate plate is abutted against the flow passage to form sealing, and the flow passage is in a closed state; the valve plate is opened when moving upward.

However, the whole gate plate is usually required to be replaced after the gate plate and the sealing surface in the existing gate valve are abraded, and waste is caused.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a lower, long service life's of flashboard maintenance cost wedge type ball valve.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme: the utility model provides a wedge gate valve, includes the valve body, is equipped with the runner that supplies the medium circulation in the valve body, and the border flow perpendicular direction is equipped with the valve pocket in the valve body, be equipped with on the valve pocket with the valve body seal complex valve gap, is equipped with in the valve pocket and carries out the wedge flashboard that reciprocates along the runner perpendicular direction, and the valve body is equipped with on two terminal surfaces towards the wedge flashboard with the sealed inclined plane of the sealed complex of flashboard, is equipped with the valve rod that the drive flashboard reciprocated on the flashboard, the valve rod is worn out and is connected with the hand wheel that: the flashboard is towards be equipped with first recess on the terminal surface on sealed inclined plane, be equipped with first sealing washer in the first recess, first sealing washer protrusion in first recess and with sealed inclined plane offsets.

Through adopting above-mentioned technical scheme, after the gate valve was used for a long time, the flashboard reciprocated along the sealed inclined plane of valve body and made first sealing washer receive wearing and tearing, lead to the leakproofness variation on flashboard and sealed inclined plane, only need take out first sealing washer from first recess this moment, the first sealing washer of renewal just can make and have better leakproofness again between flashboard and the sealed inclined plane, need not change whole flashboard to the life of flashboard has been prolonged.

Further setting the following steps: the first sealing ring is a metal ring.

Through adopting above-mentioned technical scheme, the metal loop wearability is strong, the leakproofness is good, long service life.

Further setting the following steps: the taper of the first sealing ring is the same as that of the wedge type flashboard.

Through adopting above-mentioned technical scheme, the same tapering makes first sealing washer installation go into the recess after, and first sealing washer card is established the suitability better in the recess, and first sealing washer is difficult to produce wearing and tearing.

Further setting the following steps: one end of the sealing inclined plane, which is close to the valve cavity, is provided with a second groove, a second sealing ring is arranged in the second groove, and the second sealing ring protrudes out of the second groove and is abutted to the flashboard.

Through adopting above-mentioned technical scheme, further seal valve body and flashboard through the second sealing washer, the medium flows into the valve pocket when preventing the runner closed condition.

Further setting the following steps: the periphery of the valve rod is sleeved with a polytetrafluoroethylene protective sleeve.

Through adopting above-mentioned technical scheme, set up the valve rod formation protection of polytetrafluoroethylene protective sheath to the valve pocket, the medium that prevents to flow into the valve pocket when the runner is opened the state corrodes the valve rod to the life of extension valve rod generally only needs to change first sealing washer and need not change the valve rod, reduces use cost.

Further setting the following steps: the valve rod is in threaded connection with the gate plate.

Through adopting above-mentioned technical scheme, threaded connection realizes the demountable installation of valve rod and flashboard, changes first sealing washer and makes and take off the flashboard from the valve rod, only needs to operate the flashboard, and is more laborsaving.

Further setting the following steps: the magnetic attraction seat is arranged at one end, located in a flow channel where media flow in, of the valve body, at least one slot is formed in the outer peripheral wall of the magnetic attraction seat, and a pluggable magnetic block is arranged in the slot.

Through adopting above-mentioned technical scheme, when containing magnetic impurity in the medium, the flashboard of metal material and the magnetic impurity of adsorbing easily on the surface of first sealing washer to influence the leakproofness between flashboard and the valve body, lead to the flashboard card to die even, consequently set up the magnetism and inhale the seat, insert the magnetic path to the slot, through the magnetic path with the magnetic impurity adsorption in the medium, further extension the life of flashboard.

Further setting the following steps: the magnetic suction seat is detachably connected with the valve body.

Through adopting above-mentioned technical scheme, can dismantle setting up convenience of customers who connects and pull down the seat of inhaling magnetism and clear up magnetic impurity.

Further setting the following steps: the periphery package of magnetic path is equipped with the silica gel protective sheath.

Through adopting above-mentioned technical scheme, set up the silica gel protective sheath and make the magnetic path insert increase frictional force between the two when establishing into the slot on the one hand, make the magnetic path be difficult for coming off from the slot, on the other hand also reduces the slot and receives wearing and tearing at the magnetic path plug in-process.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is an enlarged schematic view A of FIG. 1;

FIG. 3 is a schematic diagram of a magnetic block in the present embodiment;

in the figure: 1. a valve body; 2. a flow channel; 3. a valve cavity; 4. a valve cover; 5. a shutter plate; 6. sealing the inclined plane; 7. a valve stem; 8. a hand wheel; 9. a first groove; 10. a first seal ring; 11. a second groove; 12. a second seal ring; 13. a polytetrafluoroethylene protective sleeve; 14. a filler; 15. a gland; 16. a magnetic attraction seat; 17. a magnetic block; 18. a slot; 19. silica gel protective sleeve.

Detailed Description

In order to make the technical solution of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. The directional and positional terms, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., refer only to the directions and positions of the accompanying drawings, and thus, the present invention will be described and understood with reference to the directional and positional terms, and it is to be understood that the embodiments described herein are only for purposes of illustration and understanding, and are not intended to limit the present invention.

Referring to fig. 1 to 3, the present invention is realized by the following technical solutions: the utility model provides a wedge gate valve, includes valve body 1, is equipped with the runner 2 that supplies the medium circulation in the valve body 1, is equipped with the valve pocket 3 along 2 vertical direction of runner in the valve body 1, is equipped with on the valve pocket 3 with the valve body 1 sealed complex valve gap 4, is equipped with in the valve pocket 3 to carry out the wedge flashboard 5 that reciprocates along 2 vertical direction of runner, is equipped with on two terminal surfaces of valve body 1 orientation wedge flashboard 5 with the sealed inclined plane 6 of 5 sealed complex of flashboard, is equipped with the valve rod 7 that drives 5 reciprocates of flashboard on the flashboard 5, valve rod 7 with 5 threaded connection of flashboard. The periphery cover that the valve rod 7 is located the part in valve chamber 3 is equipped with polytetrafluoroethylene protective sheath 13, valve rod 7 is worn out and is connected with the hand wheel 8 that drives valve rod 7 and carry out the reciprocating from valve gap 4, be equipped with packing 14 between valve rod 7 and the valve gap 4, be equipped with gland 15 on the packing 14. The flashboard 5 is towards be equipped with first recess 9 on the terminal surface of sealed inclined plane 6, be equipped with first sealing washer 10 in the first recess 9, first sealing washer 10 protrusion in first recess 9 and with sealed inclined plane 6 offsets, and first sealing washer 10 is the metal circle. The taper of the metal ring is the same as that of the wedge-shaped gate plate 5. The one end that sealed inclined plane 6 is close to valve pocket 3 is equipped with second recess 11, is equipped with second sealing washer 12 in the second recess 11, second sealing washer 12 protrusion in second recess 11 and with flashboard 5 offsets, and second sealing washer 12 adopts the elasticity sealing washer, and second sealing washer 12 is equipped with circular butt portion towards the terminal surface of flashboard 5, and when flashboard 5 reciprocated in valve pocket 3, circular butt portion received the extrusion and inwards contracts, and when first sealing washer 10 was sealed with sealed inclined plane 6 and is joined in marriage, circular butt portion protrusion and sealed inclined plane 6 butt, and second sealing washer 12 has further strengthened the leakproofness between flashboard 5 and sealed inclined plane 6.

In addition, the valve body 1 is provided with a magnetic suction seat 16 at one end of the flow channel 2 into which the medium flows, two slots 18 are formed in the upper side and the lower side of the outer peripheral wall of the magnetic suction seat 16, a pluggable magnetic block 17 is arranged in each slot 18, and a silica gel protective sleeve 19 is wrapped on the periphery of each magnetic block 17. And two ends of the magnetic suction seat 16 are detachably connected with the valve body 1 through bolts and nuts. When containing magnetic impurity in the medium, the flashboard 5 and the first sealing washer 10 of metal material adsorb magnetic impurity on the surface easily to influence the leakproofness between flashboard 5 and the valve body 1, lead to flashboard 5 card to die even, consequently set up magnetism and inhale seat 16, insert magnetic path 17 in slot 18, adsorb the magnetic impurity in the medium through magnetic path 17, further extension the life of flashboard 5.

After the gate valve is used for a long time, flashboard 5 reciprocates along the sealed inclined plane 6 of valve body 1 and makes first sealing washer 10 receive wearing and tearing, leads to the leakproofness variation of flashboard 5 and sealed inclined plane 6, and the utility model provides a gate valve only needs to take out first sealing washer 10 from first recess 9, and the first sealing washer 10 of renewal just can make and have better leakproofness again between flashboard 5 and the sealed inclined plane 6 to the life of gate valve has been prolonged.

Set up polytetrafluoroethylene protective sheath 13 and form the protection to valve rod 7 of valve pocket 3, prevent that the medium that flows into valve pocket 3 when runner 2 is opened the state from corroding valve rod 7 to the life of extension valve rod 7 generally only needs to be changed first sealing washer 10 and need not change valve rod 7, reduces use cost.

The above embodiments are merely illustrative of the present invention, which is not intended to limit the present invention, and for those skilled in the art, a plurality of modifications and improvements can be made without departing from the principles of the present invention, which all fall within the protection scope of the present invention, therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. The utility model provides a wedge gate valve, includes the valve body, is equipped with the runner that supplies the medium circulation in the valve body, and the border flow perpendicular direction is equipped with the valve pocket in the valve body, be equipped with on the valve pocket with the valve body seal complex valve gap, is equipped with in the valve pocket and carries out the wedge flashboard that reciprocates along the runner perpendicular direction, and the valve body is equipped with on two terminal surfaces towards the wedge flashboard with the sealed inclined plane of the sealed complex of flashboard, is equipped with the valve rod that the drive flashboard reciprocated on the flashboard, the valve rod is worn out and is connected with the hand wheel that: the flashboard is towards be equipped with first recess on the terminal surface on sealed inclined plane, be equipped with first sealing washer in the first recess, first sealing washer protrusion in first recess and with sealed inclined plane offsets.

2. A wedge gate valve in accordance with claim 1, wherein: the first sealing ring is a metal ring.

3. A wedge gate valve in accordance with claim 1, wherein: the taper of the first sealing ring is the same as that of the wedge type flashboard.

4. A wedge gate valve in accordance with claim 1, wherein: one end of the sealing inclined plane, which is close to the valve cavity, is provided with a second groove, a second sealing ring is arranged in the second groove, and the second sealing ring protrudes out of the second groove and is abutted to the flashboard.

5. A wedge gate valve in accordance with claim 1, wherein: the periphery of the valve rod is sleeved with a polytetrafluoroethylene protective sleeve.

6. A wedge gate valve in accordance with claim 1, wherein: the valve rod is in threaded connection with the gate plate.

7. A wedge gate valve in accordance with claim 1, wherein: the magnetic attraction seat is arranged at one end, located in a flow channel where media flow in, of the valve body, at least one slot is formed in the outer peripheral wall of the magnetic attraction seat, and a pluggable magnetic block is arranged in the slot.

8. A wedge gate valve in accordance with claim 7, wherein: the magnetic suction seat is detachably connected with the valve body.

9. A wedge gate valve in accordance with claim 7, wherein: the periphery package of magnetic path is equipped with the silica gel protective sheath.