CN214404754U

CN214404754U - High leakproofness gate valve

Info

Publication number: CN214404754U
Application number: CN202120059699.4U
Authority: CN
Inventors: 刘海宾; 杨朋辉; 张应伟; 仝新峰
Original assignee: Henan Hongbai Valve Technology Co ltd
Current assignee: Henan Hongbai Valve Technology Co ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-10-15
Anticipated expiration: 2031-01-11

Abstract

The utility model discloses a high leakproofness gate valve, including valve body and promotion subassembly, the fixed first connecting plate that is equipped with in middle part on valve body top, the water-blocking groove has been seted up to the inside at valve body middle part, and the water service mouth has all been seted up to the both sides in water-blocking groove, and first connecting plate communicates with each other with the water-blocking groove, and the fixed sealed shell that is equipped with in top of valve body promotes the subassembly and includes flashboard, two slide rails, movable groove, two sliders, two connecting rods and screw rod sleeve, and two slide rails are fixed the both sides that set up at sealed shell inner wall respectively, the beneficial effects of the utility model are that: the graphite gasket is arranged on the outer wall of the water blocking groove, so that the graphite gasket has good wear resistance and corrosion resistance, can reduce the wear generated when the flashboard is in contact with the water blocking groove, and can be used for a long time; through the sealing gasket that sets up between first connecting plate and second connecting plate and the outer wall of two connecting pipes, can improve the sealing performance of its junction greatly.

Description

High leakproofness gate valve

Technical Field

The utility model relates to a gate valve, in particular to high leakproofness gate valve belongs to gate valve technical field.

Background

The gate valve is an opening and closing member gate plate, the moving direction of the gate plate is vertical to the direction of water, and the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled. Although the gate valve in the prior art can ensure effective opening action, the sealing performance of the gate valve in a closed state is poor, and a valve rod needs to rotate frequently during opening and closing, so that a common sealing ring is poor in wear resistance and easy to wear, and the sealing performance and the service life of the common sealing ring are affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high leakproofness gate valve to solve the poor and not wear-resisting problem of leakproofness that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-sealing gate valve comprises a valve body and a lifting assembly, wherein a first connecting plate is fixedly arranged in the middle of the top end of the valve body, a water blocking groove is formed in the middle of the valve body, water passing ports are formed in two sides of the water blocking groove, the first connecting plate is communicated with the water blocking groove, a sealing shell is fixedly arranged at the top end of the valve body, a second connecting plate is fixedly arranged at the bottom end of the sealing shell, the first connecting plate and the second connecting plate are fixedly connected through a plurality of screws, a sealing bearing is fixedly arranged on the inner wall of the middle of the top end of the sealing shell, a lead screw is rotatably arranged in the sealing bearing, connecting pipes are fixedly arranged on two sides of the valve body, the lifting assembly comprises a gate plate, two slide rails, a movable groove, two slide blocks, two connecting rods and a lead screw sleeve, the two slide rails are fixedly arranged on two sides of the inner wall of the sealing shell respectively, two the slider respectively with two the inside sliding connection of slide rail, two one side of slider all is fixed and is equipped with the connecting rod, the lead screw sleeve with the middle part threaded connection of lead screw, two the other end of connecting rod respectively with the telescopic both sides fixed connection of lead screw, the telescopic bottom mounting of lead screw is equipped with the flashboard, the inside middle part of flashboard seted up with lead screw matched with movable groove.

As an optimal technical scheme of the utility model, the fixed hand wheel that is equipped with in top of lead screw.

As an optimized technical proposal of the utility model, the outer wall of the water-blocking groove is fixedly provided with a graphite gasket.

As an optimal technical scheme of the utility model, the fixed set shell that is equipped with in middle part on sealed shell top, the top of lead screw fixed be equipped with set shell matched with spacing dish.

As an optimized technical scheme of the utility model, between first connecting plate and the second connecting plate and two the outer wall of connecting pipe is all fixed to be equipped with sealed the pad.

As an optimal technical scheme of the utility model, a plurality of the bottom of screw is all fixed and is equipped with waterproof pad.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a high leakproofness gate valve, through the graphite gasket that sets up at the outer wall of water-blocking groove, the graphite gasket has good wearability and corrosion resistance, can reduce the abrasion that produces when flashboard and water-blocking groove contact, and can use for a long time; the sealing performance of the joint can be greatly improved by the sealing gaskets arranged between the first connecting plate and the second connecting plate and on the outer walls of the two connecting pipes, and the screw rod can be sealed by the sealing bearing arranged on the inner wall of the top end of the sealing shell, so that the possibility of water leakage is avoided; through the waterproof pad that sets up in the bottom of a plurality of screw, can make the leakproofness between first connecting plate and the second connecting plate better, and the condition of leaking can not appear.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

fig. 3 is an enlarged schematic view of a portion a of fig. 2 according to the present invention.

In the figure: 1. a valve body; 2. sealing the shell; 3. a connecting pipe; 4. a lifting assembly; 41. a shutter plate; 42. a slide rail; 43. a movable groove; 44. a slider; 45. a connecting rod; 46. a screw rod sleeve; 5. a screw rod; 6. a hand wheel; 7. a stationary case; 8. a limiting disc; 9. a first connecting plate; 10. sealing the bearing; 11. a water blocking tank; 12. a gasket; 13. a screw; 14. a waterproof pad; 15. a second connecting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a gate valve with high sealing performance, which comprises a valve body 1 and a lifting assembly 4, wherein a first connecting plate 9 is fixedly disposed at the middle portion of the top end of the valve body 1, a water blocking tank 11 is disposed inside the middle portion of the valve body 1, both sides of the water blocking tank 11 are provided with water inlets, the first connecting plate 9 is communicated with the water blocking tank 11, the top end of the valve body 1 is fixedly provided with a sealing shell 2, the bottom end of the sealing shell 2 is fixedly provided with a second connecting plate 15, the first connecting plate 9 and the second connecting plate 15 are fixedly connected by a plurality of screws 13, the inner wall of the middle portion of the top end of the sealing shell 2 is fixedly provided with a sealing bearing 10, the sealing bearing 10 is rotatably provided with a lead screw 5, both sides of the valve body 1 are fixedly provided with a connecting pipe 3, the lifting assembly 4 comprises a gate plate 41, two slide rails 42, a movable groove 43, two slide blocks 44, two connecting rods 45 and a sleeve 46, the two slide rails 42 are respectively fixedly disposed at both sides of the inner wall of the sealing shell 2, two sliders 44 respectively with the inside sliding connection of two slide rails 42, one side of two sliders 44 all is fixed and is equipped with connecting rod 45, the middle part threaded connection of lead screw sleeve 46 and lead screw 5, the other end of two connecting rods 45 respectively with the both sides fixed connection of lead screw sleeve 46, the bottom mounting of lead screw sleeve 46 is equipped with flashboard 41, the inside middle part of flashboard 41 has been seted up with lead screw 5 matched with movable groove 43.

Preferably, a hand wheel 6 is fixedly arranged at the top end of the screw rod 5, and the hand wheel 6 arranged at the top end of the screw rod 5 can facilitate a user to rotate the screw rod 5; the graphite gasket is fixedly arranged on the outer wall of the water blocking groove 11, and has good wear resistance and corrosion resistance through the graphite gasket arranged on the outer wall of the water blocking groove 11, so that the abrasion generated when the flashboard 41 is in contact with the water blocking groove 11 can be reduced, and the water blocking groove can be used for a long time; the middle part of the top end of the sealing shell 2 is fixedly provided with a fixed shell 7, the top part of the screw rod 5 is fixedly provided with a limit disc 8 matched with the fixed shell 7, and the position of the screw rod 5 can be limited by the fixed shell 7 arranged in the middle part of the top end of the sealing shell 2 and the limit disc 8 matched with the fixed shell 7 arranged at the top part of the screw rod 5, so that the screw rod 5 is prevented from moving along with the screw rod sleeve 46; sealing gaskets 12 are fixedly arranged between the first connecting plate 9 and the second connecting plate 15 and on the outer walls of the two connecting pipes 3, and the sealing performance of the connecting part can be greatly improved and the possibility of water leakage is avoided by the aid of the sealing gaskets 12 arranged between the first connecting plate 9 and the second connecting plate 15 and on the outer walls of the two connecting pipes 3; the bottom of a plurality of screws 13 is fixedly provided with a waterproof pad 14, and the waterproof pad 14 arranged at the bottom of the plurality of screws 13 can ensure that the sealing property between the first connecting plate 9 and the second connecting plate 15 is better, and the water leakage condition can not occur.

When in specific use, the utility model relates to a gate valve with high sealing performance, firstly, a first connecting plate 9 and a second connecting plate 15 can be fixedly connected together through a plurality of screws 13, the sealing gasket 12 arranged between the first connecting plate 9 and the second connecting plate 15 and the waterproof gasket 14 arranged at the bottom of the plurality of screws 13 can ensure that the sealing performance between the first connecting plate 9 and the second connecting plate 15 is better without water leakage, then, the hand wheel 6 can be rotated clockwise when the gate valve needs to be closed, the hand wheel 6 drives the screw rod 5 to rotate, under the matching of two slide rails 42, two slide blocks 44 and the screw rod sleeve 46, the flashboard 41 arranged at the bottom end of the screw rod sleeve 46 moves downwards, the flashboard 41 and the water blocking groove 11 are completely clamped together, thereby the circulation of water is prevented, through the graphite gasket arranged on the outer wall of the water blocking groove 11, the graphite gasket has good wearability and corrosion resistance, can reduce the wearing and tearing that produce when flashboard 41 contacts with water-blocking groove 11, and can use for a long time, set up through the set casing 7 at the middle part on seal shell 2 top and set up at the top of lead screw 5 with set casing 7 matched with spacing dish 8, can prescribe a limit to the position of lead screw 5, avoid it to follow lead screw sleeve 46 and move, finally, when needing to turn on the water, at anticlockwise rotation hand wheel 6, flashboard 41 just can be lifting motion under a series of above-mentioned cooperations, thereby make the water pass through.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high-sealing-performance gate valve comprises a valve body (1) and a lifting assembly (4), and is characterized in that a first connecting plate (9) is fixedly arranged at the middle of the top end of the valve body (1), a water blocking groove (11) is formed in the middle of the valve body (1), water passing ports are formed in two sides of the water blocking groove (11), the first connecting plate (9) is communicated with the water blocking groove (11), a sealing shell (2) is fixedly arranged at the top end of the valve body (1), a second connecting plate (15) is fixedly arranged at the bottom end of the sealing shell (2), the first connecting plate (9) and the second connecting plate (15) are fixedly connected through a plurality of screws (13), a sealing bearing (10) is fixedly arranged on the inner wall of the middle of the top end of the sealing shell (2), a screw rod (5) is rotatably arranged in the sealing bearing (10), connecting pipes (3) are fixedly arranged on two sides of the valve body (1), promote subassembly (4) and include flashboard (41), two slide rails (42), activity groove (43), two sliders (44), two connecting rods (45) and lead screw sleeve (46), two slide rails (42) are fixed the setting respectively and are in the both sides of sealed shell (2) inner wall, two slider (44) respectively with two the inside sliding connection of slide rail (42), two one side of slider (44) is all fixed and is equipped with connecting rod (45), lead screw sleeve (46) with the middle part threaded connection of lead screw (5), two the other end of connecting rod (45) respectively with the both sides fixed connection of lead screw sleeve (46), the bottom mounting of lead screw sleeve (46) is equipped with flashboard (41), the inside middle part of flashboard (41) seted up with lead screw (5) matched with activity groove (43).

2. The gate valve of claim 1, wherein: and a hand wheel (6) is fixedly arranged at the top end of the screw rod (5).

3. The gate valve of claim 1, wherein: and a graphite gasket is fixedly arranged on the outer wall of the water blocking groove (11).

4. The gate valve of claim 1, wherein: the middle part on the top end of the sealing shell (2) is fixedly provided with a fixed shell (7), and the top of the screw rod (5) is fixedly provided with a limit disc (8) matched with the fixed shell (7).

5. The gate valve of claim 1, wherein: sealing gaskets (12) are fixedly arranged between the first connecting plate (9) and the second connecting plate (15) and on the outer walls of the two connecting pipes (3).

6. The gate valve of claim 1, wherein: the bottoms of the plurality of screws (13) are fixedly provided with waterproof pads (14).