CN213839614U

CN213839614U - Improved soft seal gate valve

Info

Publication number: CN213839614U
Application number: CN202022663014.5U
Authority: CN
Inventors: 郑永果
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-07-30
Anticipated expiration: 2030-11-17

Abstract

The utility model discloses an improved generation soft sealing gate valve, including the valve gap, a valve body, thrust mechanism, the valve rod, valve rod nut, valve clack and hand wheel, the connection can be dismantled to valve gap and valve body, the valve body bottom adopts flat structure, top in the valve gap is located to thrust mechanism, the valve rod adopts 304 stainless steel, the valve rod locate in thrust mechanism and with thrust mechanism rotatable fit, valve rod nut threaded connection is in the valve rod, valve clack fixed connection is in the valve rod nut bottom, the hand wheel can be dismantled and connect in the top of valve rod, drive the valve rod through rotating the hand wheel and rotate, and then drive valve clack rebound makes the gate valve open, perhaps the downshifting makes the gate valve close. The gate valve adopts a flat bottom design, so that the valve body and the pipeline are in a straight line shape, and the construction is convenient; the valve rod is made of 304 stainless steel, so that the valve rod is not easy to break, rusting is avoided, the water quality is effectively ensured, the social benefit is improved, and the valve rod is worthy of great popularization; the special valve clack is adopted, so that the sealing water resistance and the wear resistance are excellent, and the service life is long.

Description

Improved soft seal gate valve

Technical Field

The utility model relates to a gate valve technical field, concretely relates to improved generation soft sealing gate valve.

Background

In the control of fluid pipelines, gate valves are used to achieve fluid interception and control. The gate valves on the market are various in types and mainly divided into hard seal gate valves and soft seal gate valves, wherein the soft seal gate valves are simple in structure and convenient to operate, and therefore the soft seal gate valves are widely applied.

The bottom of the existing soft seal gate valve product adopts an oblique angle design, and bumps are formed between the soft seal gate valve product and a pipeline during installation, so that construction is inconvenient; in addition, the existing product adopts a copper alloy valve rod, and is easy to break in the using process.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an improved generation soft sealing gate valve.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides an improved generation soft seal gate valve, includes valve gap, valve body, thrust mechanism, valve rod nut, valve clack and hand wheel, the connection can be dismantled to valve gap and valve body, the valve body bottom adopts flat structure, thrust mechanism locates the interior top of valve gap, the valve rod adopts 304 stainless steel, the valve rod locate in thrust mechanism and with thrust mechanism rotatable fit, valve rod nut threaded connection is on the valve rod, valve clack fixed connection is in the valve rod nut bottom, the hand wheel can be dismantled and connect in the top of valve rod, drives the valve rod through rotating the hand wheel and rotates, and then drives the valve clack rebound and make the gate valve open, perhaps moves down and make the gate valve close.

The improved thrust mechanism is characterized in that the thrust mechanism comprises a thrust block, a thrust pad, a thrust nut and a plurality of O-shaped rings, a cylindrical screw hole with a supporting edge is formed in the top of the valve cover, the thrust block and the thrust pad are both annular, the thrust pad is arranged at the supporting edge, the thrust block is arranged on the upper portion of the thrust pad, the thrust nut is in threaded connection with the cylindrical screw hole through the outer surface of the thrust nut, meanwhile, the thrust block is partially embedded into the inner side of the thrust nut and partially embedded into the outer side of the valve rod, and the O-shaped rings are distributed on the inner side and the outer side of the thrust nut.

The valve cover is connected with the valve body through a plurality of hexagon socket head cap screws, and a middle opening pad is embedded in the connecting surface.

The further improvement is that the valve clack is composed of an iron core and ethylene propylene diene monomer coated on the surface of the iron core.

The further improvement is that the surface of the ethylene propylene diene monomer is covered with a wear-resistant layer, the wear-resistant layer is a PET film layer filled with nano chromium oxide powder, the thickness of the wear-resistant layer is 80-100 mu m, and the particle size of the nano chromium oxide powder is 5-20 nm.

The improved structure is characterized in that the hand wheel is connected to the top end of the valve rod through a hexagon bolt, and a flat gasket is padded in the hexagon bolt.

The beneficial effects of the utility model reside in that:

(1) the gate valve adopts a flat bottom design, so that the valve body and the pipeline are in a straight line shape, and the construction is convenient;

(2) the valve rod of the gate valve is made of 304 stainless steel, so that the gate valve is not easy to break, avoids rusting, effectively ensures the quality of water quality, ensures the sanitation and safety of water supply, improves social benefits and is worthy of great popularization;

(3) the gate valve adopts a specially-made valve clack, and has excellent sealing water resistance and wear resistance and long service life.

Drawings

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

FIG. 2 is a cross-sectional view of the present invention;

in the figure: 1. a valve cover; 2. a valve body; 3. a valve stem; 4. a valve stem nut; 5. a valve flap; 501. an iron core; 502. ethylene propylene diene monomer; 6. a hand wheel; 7. a thrust block; 8. a thrust pad; 9. a thrust nut; 10. an O-shaped ring; 11. a socket head cap screw; 12. a middle mouth pad; 13. a hexagon bolt; 14. a flat washer.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

Combine shown in fig. 1 and fig. 2, an improved generation soft sealing gate valve, including valve gap 1, valve body 2, thrust mechanism, valve rod 3, valve rod nut 4, valve clack 5 and hand wheel 6, valve gap 1 and valve body 2 can dismantle the connection, 2 bottoms (outsoles) of valve body adopt flat structure, thrust mechanism locates the interior top of valve gap 1, valve rod 3 adopts 304 stainless steel, valve rod 3 locate in thrust mechanism and with thrust mechanism rotatable fit, 4 threaded connection of valve rod nut on valve rod 3, 5 fixed connection in 4 bottoms of valve rod nut of valve clack, hand wheel 6 can be dismantled and connect in the top of valve rod 3, drive valve rod 3 through rotating hand wheel 6 and rotate, and then drive 5 rebound of valve clack and make the gate valve open, perhaps move down and make the gate valve close. Of course, the hand wheel 6 may be replaced by other structures such as a square cap.

The utility model discloses in, thrust mechanism comprises thrust block 7, thrust pad 8, thrust nut 9 and a plurality of O type circle 10, the top of valve gap 1 is formed with the cylindricality screw that the area held in the palm the edge, thrust block 7 and thrust pad 8 all are the annular, thrust pad 8 is located and is held in the palm along the department, thrust block 7 locates thrust pad 8 upper portion, thrust nut 9 is through its surface and cylindricality screw threaded connection, it is inboard to make thrust block 7 part embedding thrust nut 9 simultaneously, the 3 outsides of part embedding valve rod, O type circle 10 distributes in thrust nut 9, the outside, be used for increasing the leakproofness. The thrust block 7 can prevent the valve rod 3 from moving up and down, but the valve rod 3 can rotate horizontally, and the thrust nut 9 fixes the thrust block 7.

The utility model discloses in, connect through a plurality of hexagon socket head cap screw 11 between valve gap 1 and the valve body 2, and connecting the face embedded and having well mouthful pad 12, the leakproofness is good, and easy dismounting.

The utility model discloses in, valve clack 5 comprises iron core 501 and the cladding at the EPT rubber 502 on iron core 501 surface. The iron core 501 is made of QT500-7 materials and plays a role of supporting a framework, and the ethylene propylene diene monomer 502 plays a role of contact sealing.

The utility model discloses in, the surface covering of EPT rubber 502 has wearing layer (not shown in the figure), and the wearing layer is for filling the PET rete (polyethylene glycol terephthalate) that has nanometer chromium oxide powder, and the thickness of wearing layer is 80-100 mu m, and the particle diameter of nanometer chromium oxide powder is 5-20 nm. The wear-resistant layer has outstanding wear resistance, can ensure the original characteristics of the ethylene propylene diene monomer 502, and has good use effect and long service life.

The utility model discloses in, hand wheel 6 passes through hex bolts 13 to be connected on the top of valve rod 3, and has filled up plain washer 14, easy dismounting in hex bolts 13.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides an improved generation soft seal gate valve which characterized in that: the valve comprises a valve cover (1), a valve body (2), an anti-thrust mechanism, a valve rod (3), a valve rod nut (4), a valve clack (5) and a hand wheel (6), wherein the valve cover (1) is detachably connected with the valve body (2), the bottom of the valve body (2) adopts a flat-bottom structure, the anti-thrust mechanism is arranged at the inner top of the valve cover (1), the valve rod (3) is made of 304 stainless steel, the valve rod (3) is arranged in the anti-thrust mechanism and can be in rotatable fit with the anti-thrust mechanism, the valve rod nut (4) is in threaded connection with the valve rod (3), the valve clack (5) is fixedly connected to the bottom end of the valve rod nut (4), the hand wheel (6) is detachably connected to the top end of the valve rod (3), the valve rod (3) is driven to rotate by rotating the hand wheel (6), and then the valve clack (5) is driven to move upwards to open the gate valve or move downwards to close the gate valve;

thrust mechanism comprises thrust block (7), thrust pad (8), thrust nut (9) and a plurality of O type circle (10), the top of valve gap (1) is formed with the cylindricality screw that the area held in the palm along, thrust block (7) and thrust pad (8) all are the annular, thrust pad (8) are located and are held in the palm along the department, thrust block (7) are located thrust pad (8) upper portion, thrust nut (9) are through its surface and cylindricality screw threaded connection, make thrust block (7) part embedding thrust nut (9) inboard, the part embedding valve rod (3) outside simultaneously, O type circle (10) distribute in the inside and outside of thrust nut (9).

2. The improved soft seal gate valve of claim 1, wherein: the valve cover (1) is connected with the valve body (2) through a plurality of hexagon socket head cap screws (11), and a middle opening pad (12) is embedded in the connecting surface.

3. The improved soft seal gate valve of claim 1, wherein: the valve clack (5) is composed of an iron core (501) and ethylene propylene diene monomer (502) coated on the surface of the iron core (501).

4. The improved soft seal gate valve of claim 1, wherein: the hand wheel (6) is connected to the top end of the valve rod (3) through a hexagon bolt (13), and a flat gasket (14) is padded in the hexagon bolt (13).