CN216200680U

CN216200680U - Novel wear-resisting gate valve structure

Info

Publication number: CN216200680U
Application number: CN202122388496.2U
Authority: CN
Inventors: 方天行; 刘卫国; 王忠勇; 方建生
Original assignee: Gaopin Valve Group Co ltd
Current assignee: Gaopin Valve Group Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-04-05
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a novel wear-resistant gate valve structure which comprises a valve body, wherein a connecting groove is formed in the valve body, a fixed block is connected in the connecting groove in a sliding mode, a transverse plate is arranged in the fixed block, a spring is fixedly connected to the right side surface of the transverse plate, an embedded block is fixedly connected to one end, away from the transverse plate, of the spring, the embedded block is located on the left side of the fixed block, a flashboard is fixedly connected to the upper surface of the fixed block, a valve cover is fixedly connected to the upper surface of the valve body, a packing box is fixedly connected to the upper surface of the valve cover, a bolt rod is arranged in the packing box, one end, away from the packing box, of the bolt rod extends out of the interior of the packing box, a fastening piece is connected to the side surface of the bolt rod in a penetrating mode, a packing gland is connected to the side surface of the bolt rod in a penetrating mode, and the packing gland is located above the fastening piece. The utility model can improve the sealing performance of the valve body when the gate valve is closed by the mounted device in the using process.

Description

Novel wear-resisting gate valve structure

Technical Field

The utility model relates to the field of gate valves, in particular to a novel wear-resistant gate valve structure.

Background

The gate valve is an opening and closing piece gate plate, the moving direction of the gate plate is perpendicular to the fluid direction, the gate valve can only be fully opened and fully closed, the gate valve is not suitable for different gate parameters, the gate valve is usually 5 degrees, and the temperature of a medium is 2 degrees and 52 degrees when the temperature is not high. The manufacturability is improved, and the deviation of the angle of the sealing surface in the machining process is compensated, and the gate plate is called an elastic gate plate.

The novel wear-resistant gate valve structure introduced in patent No. CN201520815712.9 has the following defects, although the problem of low wear resistance of the gate valve is solved:

1. along with the increase of the live time of gate valve, the bed hedgehopping phenomenon appears easily when closing the floodgate in the valve body inside, and the bottom of flashboard can't laminate with the valve body bottom completely, has reduced the leakproofness of gate valve to a certain extent.

2. There is no specific reference standard for the amount of the filler, which is likely to cause waste.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a novel wear-resistant gate valve structure.

In order to achieve the purpose, the utility model adopts the following technical scheme: novel wear-resisting gate valve structure, including the valve body, the inside of valve body is provided with the spread groove, the inside sliding connection of spread groove has the fixed block.

The inside of fixed block is provided with the diaphragm, the right flank fixedly connected with spring of diaphragm, the one end fixedly connected with gomphosis piece that the diaphragm was kept away from to the spring.

The position of gomphosis piece is located the left side of fixed block, the upper surface fixed connection of fixed block has the flashboard.

The valve comprises a valve body and is characterized in that a valve cover is fixedly connected to the upper surface of the valve body, a packing box is fixedly connected to the upper surface of the valve cover, a bolt rod is arranged inside the packing box, and one end, far away from the packing box, of the bolt rod extends out of the inside of the packing box.

The side surface of the bolt rod is connected with a fastening piece in a penetrating mode, the side surface of the bolt rod is connected with a packing gland in a penetrating mode and located above the fastening piece, and one end, close to the packing gland, of the bolt rod is connected with a fastening bolt in a threaded mode.

As a further description of the above technical solution:

the inside through connection of valve gap has stud, the inside of valve gap is provided with the seal gasket.

As a further description of the above technical solution:

the upper surface of the packing gland is fixedly connected with a hand wheel assembly, and the upper surface of the hand wheel assembly is fixedly connected with a valve rod nut.

As a further description of the above technical solution:

the lower surface of the valve rod nut is fixedly connected with a threaded rod, and the threaded rod is located inside the hand wheel assembly.

As a further description of the above technical solution:

the one end fixedly connected with valve rod of hand wheel subassembly is kept away from to the threaded rod, the one end fixedly connected with joint block of threaded rod is kept away from to the valve rod.

As a further description of the above technical solution:

the one end that the fixed block was kept away from to the flashboard is connected with the lower surface fixed connection of piecing together the piece.

As a further description of the above technical solution:

the valve rod is connected with the stuffing box and the valve cover in a penetrating way.

As a further description of the above technical solution:

the side surface of the connecting block is attached to the connecting position of the connecting groove.

The utility model has the following beneficial effects:

1. compared with the prior art, this novel wear-resisting gate valve structure, through the fixed block and the gomphosis piece of installation, thereby utilize the flashboard to move down and drive the fixed block and move down, make the gomphosis piece receive the extrusion to make the fixed block move to the bottom of spread groove, make the bottom gomphosis of gomphosis piece and spread groove through the resilience of spring, plug up the inside fluid of pipeline that will connect, strengthen the leakproofness of gate valve after the gate valve is closed.

2. Compared with the prior art, this novel wear-resisting gate valve structure through the mounting plate of installation, has placed the required lubricated material of gate valve in the inside of packing box, overlaps the surface of tie rod again with the mounting plate, makes the inside water level of packing box parallel with the mounting plate, installs gland again, avoids lubricated material to place too much and causes the waste.

3. Compared with the prior art, this novel wear-resisting gate valve structure, through stud and the seal gasket of installation, utilize stud to make the valve gap be convenient for install and dismantle, easy operation is convenient, strengthens the gas tightness of gate valve when opening through seal gasket, guarantees that the inside atmospheric pressure of gate valve is stable.

Drawings

Fig. 1 is a schematic overall structural diagram of a novel wear-resistant gate valve structure provided by the utility model;

FIG. 2 is a schematic diagram of the front internal structure of the novel wear-resistant gate valve structure provided by the present invention;

FIG. 3 is a schematic structural diagram of the front side of the novel wear-resistant gate valve structure provided by the present invention;

fig. 4 is a schematic structural diagram of a portion a in fig. 2 of the structure of the novel wear-resistant gate valve provided by the utility model.

Illustration of the drawings:

1. a valve body; 2. connecting grooves; 3. a valve cover; 4. sealing gaskets; 5. a stuffing box; 6. a packing gland; 7. fastening a bolt; 8. a bolt rod; 9. a hand wheel assembly; 10. a valve stem nut; 11. a threaded rod; 12. a valve stem; 13. connecting blocks; 14. a shutter plate; 15. a fixed block; 16. a transverse plate; 17. a spring; 18. a fitting block; 19. a stud bolt; 20. and (7) fastening pieces.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the novel wear-resistant gate valve structure provided by the utility model comprises: comprises a valve body 1, a connecting groove 2 is arranged inside the valve body 1, a fixed block 15 is connected inside the connecting groove 2 in a sliding manner, a transverse plate 16 is arranged inside the fixed block 15, a spring 17 is fixedly connected with the right side surface of the transverse plate 16, an embedded block 18 is fixedly connected with one end of the spring 17 far away from the transverse plate 16, the embedded block 18 is positioned at the left side of the fixed block 15, a flashboard 14 is fixedly connected with the upper surface of the fixed block 15, when the gate valve is closed, the gate plate 14 moves downwards to drive the fixed block 15 to move downwards, so that the embedded block 18 is extruded, thereby moving the fixed block 15 to the bottom of the connecting groove 2, fitting the fitting block 18 with the bottom of the connecting groove 2 by the resilience of the spring 17, blocking the fluid inside the connected pipe, the leakproofness of reinforcing gate valve after the gate valve is closed, the inside of valve body 1 covers has the protective coating of tungsten carbide, strengthens the inside wearability extension device live time of gate valve.

The upper surface fixedly connected with valve gap 3 of valve body 1, the upper surface fixedly connected with packing box 5 of valve gap 3, the inside of packing box 5 is provided with peg 8, and the one end that peg 8 kept away from packing box 5 extends the inside of packing box 5, the side surface through connection of peg 8 has fastening plate 20, the side surface through connection of peg 8 has gland 6, and gland 6 is located the top of fastening plate 20, the one end threaded connection that peg 8 is close to gland 6 has fastening bolt 7, take off gland 6 and fastening plate 20 from peg 8 through twisting fastening bolt 7, the required lubricated material of gate valve has been placed in the inside of packing box 5, overlap tie rod 8's surface again with fastening plate 20, make the inside water level of packing box 5 parallel with fastening plate 20, install gland 6 again, avoid lubricated material to place too much and cause the waste.

The inside through connection of valve gap 3 has stud 19, and the inside of valve gap 3 is provided with seal gasket 4, utilizes stud 19 to make valve gap 3 be convenient for install and dismantle, and easy operation is convenient, strengthens the gas tightness of gate valve when opening through seal gasket 4, guarantees that the inside atmospheric pressure of gate valve is stable.

Fixed surface is connected with hand wheel assembly 9 on gland 6, the last fixed surface of hand wheel assembly 9 is connected with valve-stem nut 10, the lower fixed surface of valve-stem nut 10 is connected with threaded rod 11, and threaded rod 11 is located the inside of hand wheel assembly 9, the one end fixedly connected with valve rod 12 of hand wheel assembly 9 is kept away from to threaded rod 11, the one end fixedly connected with splice 13 of threaded rod 11 is kept away from to valve rod 12, the one end that fixed block 15 was kept away from to flashboard 14 is connected with the lower fixed surface of splice 13, when the gate valve had to open or closed needs, make threaded rod 11 reciprocate through rotating hand wheel assembly 9, thereby drive flashboard 12 and splice 13 and reciprocate, and then drive flashboard 14 and fixed block 15 reciprocate, guarantee the normal use of gate valve.

The working principle is as follows: the inside of the valve body 1 is covered with a tungsten carbide protective coating, the service life of the wear resistance prolonging device in the gate valve is prolonged, the packing gland 6 and the fastening piece 20 are taken down from the bolt rod 8 by screwing the fastening bolt 7, lubricating materials required by the gate valve are placed in the packing box 5, the fastening piece 20 is sleeved back on the surface of the bolt rod 8, the water level in the packing box 5 is parallel to the fastening piece 20, the packing gland 6 is installed, waste caused by excessive placement of the lubricating materials is avoided, the valve cover 3 is convenient to install and disassemble by using the double-head bolt 19, the operation is simple and convenient, the air tightness of the gate valve when the gate valve is opened is enhanced by the sealing gasket 4, the air pressure in the gate valve is ensured to be stable, when the gate valve needs to be opened or closed, the threaded rod 11 is moved up and down by rotating the hand wheel assembly 9, so as to drive the gate rod 12 and the connecting block 13 to move up and down, and further drive the gate plate 14 and the fixed block 15 to move up and down, guarantee the normal use of gate valve, when the gate valve has the demand of closing, thereby drive fixed block 15 downstream through flashboard 14 downstream, make gomphosis piece 18 receive the extrusion to make fixed block 15 move to the bottom of spread groove 2, make the gomphosis of gomphosis piece 18 and spread groove 2 through the resilience of spring 17, stop up the inside fluid of pipeline of connecting, strengthen the leakproofness of gate valve after the gate valve is closed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. Novel wear-resisting gate valve structure, including valve body (1), its characterized in that: a connecting groove (2) is formed in the valve body (1), and a fixing block (15) is connected to the inside of the connecting groove (2) in a sliding mode;

a transverse plate (16) is arranged inside the fixed block (15), a spring (17) is fixedly connected to the right side face of the transverse plate (16), and an embedded block (18) is fixedly connected to one end, far away from the transverse plate (16), of the spring (17);

the position of the embedding block (18) is positioned on the left side of the fixed block (15), and the upper surface of the fixed block (15) is fixedly connected with a flashboard (14);

the valve cover (3) is fixedly connected to the upper surface of the valve body (1), the stuffing box (5) is fixedly connected to the upper surface of the valve cover (3), a bolt rod (8) is arranged inside the stuffing box (5), and one end, far away from the stuffing box (5), of the bolt rod (8) extends out of the inside of the stuffing box (5);

the side surface of the bolt rod (8) is connected with a fastening plate (20) in a penetrating mode, the side surface of the bolt rod (8) is connected with a packing gland (6) in a penetrating mode, the packing gland (6) is located above the fastening plate (20), and one end, close to the packing gland (6), of the bolt rod (8) is connected with a fastening bolt (7) in a threaded mode.

2. The new wear resistant gate valve structure of claim 1, wherein: the valve cover (3) is internally connected with a stud (19) in a penetrating manner, and a sealing gasket (4) is arranged inside the valve cover (3).

3. The new wear resistant gate valve structure of claim 1, wherein: the upper surface of gland (6) is fixed and is connected with hand wheel assembly (9), the upper surface fixed connection of hand wheel assembly (9) has valve-stem nut (10).

4. The new wear resistant gate valve structure of claim 3, wherein: the lower surface of the valve rod nut (10) is fixedly connected with a threaded rod (11), and the threaded rod (11) is located inside the hand wheel assembly (9).

5. The new wear resistant gate valve structure of claim 4, wherein: one end fixedly connected with valve rod (12) of hand wheel subassembly (9) is kept away from threaded rod (11), one end fixedly connected with splice (13) of threaded rod (11) is kept away from in valve rod (12).

6. The new wear resistant gate valve structure of claim 1, wherein: and one end of the flashboard (14) far away from the fixed block (15) is fixedly connected with the lower surface of the connecting block (13).

7. The new wear resistant gate valve structure of claim 5, wherein: the valve rod (12) is connected with the stuffing box (5) and the valve cover (3) in a penetrating way.

8. The new wear resistant gate valve structure of claim 5, wherein: the side surface of the connecting block (13) is attached to the connecting position of the connecting groove (2).