CN216618596U

CN216618596U - Gate valve

Info

Publication number: CN216618596U
Application number: CN202123377448.XU
Authority: CN
Inventors: 郭卫强; 王昱乾; 朱东峰; 翁鹏斌
Original assignee: Kunshan Kinglai Hygienic Materials Co Ltd
Current assignee: Kunshan Kinglai Hygienic Materials Co Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-05-27
Anticipated expiration: 2031-12-29

Abstract

The utility model relates to the technical field of valves, in particular to a gate valve. The gate valve comprises a valve body and a valve core assembly, wherein a valve cavity is formed in the valve body, two pipeline ports are coaxially formed in two sides of the valve body, and the valve core assembly is arranged in the valve cavity in a sliding mode so that the valve core assembly can plug or conduct the two pipeline ports. In addition, the valve core assembly comprises a valve core plate and an adjusting piece, and the adjusting piece can adjust the distance between the valve core plate and the pipeline port so that the valve core plate is attached to the inner wall of the valve cavity when the valve core plate moves to be opposite to the pipeline port, and therefore the valve core plate can seal the pipeline port. Through setting up the regulating part, the interval of inner wall and the case board of valve pocket when can adjusting the valve core board and reacing the shutoff position solves because of uncontrollable factors such as production error, deformation lead to the sealed bad problem, improves the shutoff effect of case board to the pipeline mouth, has reduced the defective rate of production accessories, reduce cost.

Description

Gate valve

Technical Field

The utility model relates to the technical field of valves, in particular to a gate valve.

Background

The gate valve is a shutter, which is a valve that can be moved along the vertical direction of the central line of a channel to open and close a pipeline. The pipeline port of the gate valve is connected with the pipeline, and the valve core assembly of the gate valve performs sliding movement in the valve cavity to plug and communicate the valve core assembly with the pipeline port, so that the gate valve is switched on and off the pipeline. However, in the production and composition processes of the valve core assembly, the problem of poor sealing of the valve core assembly is easily caused by uncontrollable factors such as production errors and deformation of the valve core assembly, when the valve core assembly moves to a position just opposite to a pipeline port to plug the pipeline port, a gap is easily formed between the valve core assembly and the inner wall of the valve cavity, so that the valve core assembly is not tight in plugging the pipeline port, the plugging effect of the valve core assembly is greatly reduced, the service life of the valve core assembly is also reduced, and the replacement cost is increased.

Therefore, it is desirable to invent a gate valve to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a gate valve, which aims to solve the problem of poor sealing caused by uncontrollable factors such as production errors and deformation of a valve core assembly, improve the plugging effect of the valve core assembly on a pipeline opening, reduce the reject ratio of production accessories and reduce the cost.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a gate valve, includes valve body and case subassembly, the valve pocket has been seted up to the inside of valve body, two pipeline mouths have been seted up with the axle center in the both sides of valve body, the case subassembly slide set up in the valve pocket to make case subassembly shutoff or switch on two the pipeline mouth, the case subassembly includes:

the adjusting piece can adjust the distance between the valve core plate and the pipeline port, so that the valve core plate is attached to the inner wall of the valve cavity when the valve core plate moves to be opposite to the pipeline port.

Preferably, the adjusting part is an adjusting bolt, the valve core plate comprises a lining plate and a sealing plate arranged on the lining plate, a screw of the adjusting bolt is in threaded connection with the lining plate, and the screw of the adjusting bolt penetrates through the lining plate and abuts against the sealing plate;

the adjusting bolt is screwed on the lining plate, so that the screw rod of the adjusting bolt drives the sealing plate to approach the inner wall of the valve cavity.

Preferably, the adjusting bolts are arranged in a plurality, and the adjusting bolts are arranged at intervals in the circumferential direction of the lining plate.

Preferably, the valve core plate further includes:

a fixing bolt configured to fix the packing plate and the sealing plate, the fixing bolt being loosened when the adjusting bolt is screwed on the packing plate.

Preferably, the gate valve further includes:

the driving assembly is configured to drive the valve core assembly to slide in the valve cavity so as to block or communicate the two pipeline ports.

As preferred scheme, be provided with the valve gap on the valve body, the valve gap lid is established the shutoff and is in on the valve chamber, drive assembly includes:

a driving member disposed on the valve cover; and

the connecting rod, set up in the valve pocket, the connecting rod includes looks articulated first connecting rod and second connecting rod, first connecting rod with the case subassembly is articulated mutually, the second connecting rod with the valve gap is articulated mutually, the output of driving piece passes the valve gap with the second connecting rod is articulated mutually.

Preferably, a hinge point between the second connecting rod and the valve cover is located at an edge of the valve cover, and the hinge point between the second connecting rod and the driving member is located at one end of the second connecting rod close to the hinge point between the second connecting rod and the valve cover.

Preferably, the length of the second link is greater than that of the first link.

Preferably, the valve core assembly further comprises:

the mounting panel, first connecting rod with the mounting panel is articulated mutually, the case board sets up on the mounting panel.

Preferably, the valve core assembly slides in the valve cavity through a sliding structure, and the sliding structure is a roller sliding structure or a guide rail sliding structure.

The utility model has the beneficial effects that:

the utility model provides a gate valve which comprises a valve body and a valve core assembly, wherein a valve cavity is formed in the valve body, two pipeline ports are formed in the two sides of the valve body and the same axis, and the valve core assembly is arranged in the valve cavity in a sliding mode so that the valve core assembly can block or conduct the two pipeline ports. In addition, the valve core assembly comprises a valve core plate and an adjusting piece, and the adjusting piece can adjust the distance between the valve core plate and the pipeline port so that the valve core plate is attached to the inner wall of the valve cavity when the valve core plate moves to be opposite to the pipeline port, and therefore the valve core plate can seal the pipeline port. Through setting up the regulating part, the interval of inner wall and the case board of valve pocket when can adjusting the valve core board and reacing the shutoff position solves because of uncontrollable factors such as production error, deformation lead to the sealed bad problem, improves the shutoff effect of case board to the pipeline mouth, has reduced the defective rate of production accessories, has reduced the cost.

Drawings

FIG. 1 is a schematic structural view of a valve body provided by an embodiment of the utility model with a valve cover removed;

FIG. 2 is a schematic structural diagram of a valve core assembly conducting pipe port provided by the embodiment of the utility model;

FIG. 3 is a schematic structural diagram of a valve core assembly for blocking a pipeline port according to an embodiment of the utility model;

FIG. 4 is a schematic structural view of a valve core assembly provided by an embodiment of the utility model;

fig. 5 is an exploded view of a valve cartridge assembly and a conduit port provided by an embodiment of the present invention.

In the figure:

10. a valve body; 11. a valve cavity; 12. a valve cover; 13. a pipe orifice;

20. a valve core assembly; 21. a valve core plate; 211. a liner plate; 2111. a threaded adjustment hole; 2112. a first mounting hole; 212. a sealing plate; 2121. a second mounting hole; 213. fixing the bolt; 22. an adjustment member; 23. mounting a plate;

30. a drive assembly; 31. a connecting rod; 311. a first link; 312. a second link; 32. a drive member.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplicity of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The embodiment provides a gate valve which is mainly used for plugging and communicating pipelines. As shown in fig. 1 to 3, the gate valve includes a valve body 10 and a valve core assembly 20, wherein a valve cavity 11 is formed inside the valve body 10, two pipe ports 13 are formed on two sides of the valve body 10 coaxially, and the valve core assembly 20 is slidably disposed in the valve cavity 11, so that the valve core assembly 20 blocks or conducts the two pipe ports 13. The pipeline port 13 is connected with the corresponding pipeline, so that the pipeline is blocked and communicated by the gate valve. Specifically, as shown in fig. 3, when the valve core assembly 20 slides to be opposite to the pipe ports 13, the valve core assembly 20 plugs the two pipe ports 13, so as to plug the corresponding pipes, and as shown in fig. 2, when the valve core assembly 20 slides to be away from the pipe ports 13, the two pipe ports 13 are communicated, so as to communicate the corresponding pipes. The gate valve is simple in structure, convenient to operate and capable of reducing manufacturing cost due to the fact that the gate valve is designed.

In addition, as shown in fig. 2 and 3, the gate valve further includes a driving assembly 30, and the driving assembly 30 is used for driving the valve core assembly 20 to slide in the valve cavity 11 to block or communicate the two pipeline ports 13. The driving assembly 30 is arranged to drive the valve core assembly 20, so that the operation and control are convenient.

Specifically, as shown in fig. 2 and 3, a valve cover 12 is disposed on the valve body 10, the valve cover 12 is covered and sealed on the valve cavity 11, the driving assembly 30 includes a driving member 32 and a connecting rod 31, wherein the driving member 32 is disposed on the valve cover 12, the connecting rod 31 is disposed in the valve cavity 11, the connecting rod 31 includes a first connecting rod 311 and a second connecting rod 312 that are hinged to each other, the first connecting rod 311 is hinged to the valve core assembly 20, the second connecting rod 312 is hinged to the valve cover 12, an output end of the driving member 32 passes through the valve cover 12 and is hinged to the second connecting rod 312, the driving member 32 can drive the second connecting rod 312 to move and the first connecting rod 311 to move, and the first connecting rod 311 further drives the valve core assembly 20 to slide in the valve cavity 11. Through setting up first connecting rod 311 and second connecting rod 312 to driving piece 32 drive second connecting rod 312 moves, can realize the distance that case subassembly 20 removed is multiplied and is greater than the distance that driving piece 32 output moved, thereby reduced the cost of manufacture of gate valve. In addition, as the driving element 32 penetrates through the valve cover 12 and is hinged with the second connecting rod 312, the sealing effect of the valve cover 12 on the valve cavity 11 can be ensured while the driving element 32 is connected with the second connecting rod 312, and the sealing performance of the whole valve core is ensured.

It should be noted that, in this embodiment, the driving element 32 may be a driving cylinder, which has low cost, convenient use and high reliability, and in other embodiments, the driving element 32 may also be a linear driving motor as long as a reciprocating driving structure can be implemented.

Preferably, as shown in fig. 3, a hinge point of the second link 312 and the valve cover 12 is located at an edge of the valve cover 12, and a hinge point of the second link 312 and the driving member 32 is located at an end of the second link 312 near the hinge point of the second link 312 and the valve cover 12. This mode of setting can further realize the original displacement of case subassembly 20 when reducing driving piece 32 output displacement, improves the multiple that case subassembly 20 displacement is for driving piece 32 output displacement promptly.

Further, the length of the second link 312 is greater than that of the first link 311, which can further increase the multiple of the moving distance of the valve core assembly 20 relative to the moving distance of the output end of the driver 32.

Referring to fig. 4, a specific structure of the valve core assembly 20 is described, as shown in fig. 4, the valve core assembly 20 includes a valve core plate 21 and a mounting plate 23, where the mounting plate 23 is fixed on the valve core plate 21, the first link 311 is hinged to the mounting plate 23, and the first link 311 drives the valve core plate 21 and the mounting plate 23 to slide in the valve cavity 11, so that the valve core plate 21 blocks or conducts the two pipe ports 13. By providing the mounting plate 23, the protection of the valve core plate 21 is improved, and a hinge hole hinged to the first link 311 is prevented from being formed in the valve core plate 21.

Preferably, in order to facilitate the sliding of the valve core assembly 20 in the valve cavity 11, the valve core assembly 20 slides in the illustrated valve cavity 11 through a sliding structure, in this embodiment, the sliding structure is a roller sliding structure, and the roller sliding structure is fixed on the valve core plate 21, so as to improve the reliability of the sliding of the valve core assembly 20 in the valve cavity 11. The mounting plate 23 is also provided with a slide structure. In other embodiments, the sliding structures provided on the valve core plate 21 and the mounting plate 23 may also be rail sliding structures.

Because the valve core assembly 20 is in the production and composition process, the valve core assembly 20 is easy to cause the poor sealing problem of the valve core assembly 20 due to uncontrollable factors such as production errors and deformation, when the valve core plate 21 on the valve core assembly 20 moves to be over against the pipeline ports 13 to plug the two pipeline ports 13, a gap is easy to exist between the valve core plate 21 and the inner wall of the valve cavity 11, the pipeline port 13 is not tightly sealed by the valve core assembly 20, the plugging effect of the valve core assembly 20 is greatly reduced, the service life of the valve core assembly 20 is also reduced, and the replacement cost is increased.

In order to solve the above problem, as shown in fig. 4 and fig. 5, the valve core assembly 20 provided in this embodiment further includes an adjusting member 22, and the adjusting member 22 can adjust a distance between the valve core plate 21 and the duct port 13, so that when the valve core plate 21 moves to face the duct port 13, the valve core plate 21 is attached to an inner wall of the valve cavity 11, thereby blocking the duct port 13 by the valve core plate 21. By arranging the adjusting piece 22, the distance between the inner wall of the valve cavity 11 and the valve core plate 21 when the valve core plate 21 reaches the plugging position can be adjusted, the problem of poor sealing caused by uncontrollable factors such as production errors and deformation is solved, the plugging effect of the valve core plate 21 on the pipeline opening 13 is improved, the reject ratio of production accessories is reduced, and the cost is reduced.

In this embodiment, as shown in fig. 4 and 5, the adjusting member 22 is an adjusting bolt, the valve core plate 21 includes a lining plate 211 and a sealing plate 212 disposed on the lining plate 211, the lining plate 211 is connected to the mounting plate 23, a screw of the adjusting bolt is in threaded connection with the lining plate 211, and the screw of the adjusting bolt penetrates through the lining plate 211 to abut against the sealing plate 212, when there is a gap between the valve core plate 21 and the side of the pipe port 13, the adjusting bolt is screwed on the lining plate 211, so that the screw of the adjusting bolt drives the sealing plate 212 to move toward the side of the pipe port 13, the sealing plate 212 is ensured to be attached to the inner wall of the valve cavity 11, and the sealing plate 212 is ensured to be tightly plugged on the pipe port 13. Specifically, the liner 211 is provided with a thread adjusting hole 2111, and a screw of an adjusting bolt passes through the thread adjusting hole 2111 to abut against the seal plate 212.

As shown in fig. 4 and 5, the valve core plate 21 further includes a fixing bolt 213, the lining plate 211 is provided with a first mounting hole 2112, the sealing plate 212 is provided with a second mounting hole 2121, and the fixing bolt 213 passes through the first mounting hole 2112 and the second mounting hole 2121 in sequence to fix the lining plate 211 and the sealing plate 212. It should be noted that, when the distance between the sealing plate 212 and the pipe orifice 13 needs to be adjusted, the fixing bolt 213 is firstly unscrewed on the lining plate 211, and then the adjusting bolt is screwed on the lining plate 211 until the adjusting bolt drives the sealing plate 212 to be capable of fitting with the inner wall of the valve cavity 11, and after the relative distance between the lining plate 211 and the sealing plate 212 is adjusted, the fixing bolt 213 is screwed, so that the fixing of the lining plate 211 and the sealing plate 212 is realized.

Preferably, as shown in fig. 4 and 5, a plurality of adjusting bolts are provided, the plurality of adjusting bolts are arranged at intervals in the circumferential direction of the lining plate 211, and by providing the plurality of adjusting bolts on the lining plate 211, each position of the sealing plate 212 is convenient to adjust to be attached to the inner wall of the valve cavity 11, and the levelness of the whole sealing plate 212 is also convenient to adjust. It should be noted that, in this embodiment, a plurality of adjusting bolts are respectively arranged at the positions of four frames of the lining board 211 at intervals, and correspondingly, a plurality of fixing bolts 213 are respectively arranged at the positions of four frames of the lining board 211 at intervals, when the distance between the position of the upper frame of the sealing plate 212 and the pipeline port 13 needs to be adjusted, the fixing bolts 213 at the position of the upper frame of the lining board 211 are firstly unscrewed, and then the adjusting bolts at the position of the upper frame of the lining board 211 are screwed, so as to achieve distance adjustment at the corresponding positions. It should be noted that the adjustment modes at the positions of the other frames are the same, and in other embodiments, one adjusting bolt may be disposed at the positions of the four frames of the lining board 211, or even more adjusting bolts may be disposed at intervals, and the adjusting bolts may be disposed according to requirements.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a gate valve, includes valve body (10) and case subassembly (20), valve chamber (11) have been seted up to the inside of valve body (10), two pipeline mouths (13) have been seted up with the axle center in the both sides of valve body (10), case subassembly (20) slide set up in valve chamber (11), so that case subassembly (20) shutoff or switch on two pipeline mouths (13), its characterized in that, case subassembly (20) include:

the valve core plate (21) and the adjusting piece (22), the adjusting piece (22) can adjust the distance between the valve core plate (21) and the pipeline port (13), so that when the valve core plate (21) moves to be opposite to the pipeline port (13), the valve core plate (21) is attached to the inner wall of the valve cavity (11).

2. The gate valve according to claim 1, wherein the adjusting member (22) is an adjusting bolt, the core plate (21) includes a lining plate (211) and a sealing plate (212) provided on the lining plate (211), a screw of the adjusting bolt is threadedly connected with the lining plate (211), and the screw of the adjusting bolt passes through the lining plate (211) to abut against the sealing plate (212);

the adjusting bolt is screwed on the lining plate (211), so that the screw rod of the adjusting bolt drives the sealing plate (212) to approach towards the inner wall of the valve cavity (11).

3. The gate valve according to claim 2, wherein the adjusting bolt is provided in plural numbers, and the plural numbers of the adjusting bolts are arranged at intervals in a circumferential direction of the liner plate (211).

4. A gate valve according to claim 2, wherein the core plate (21) further comprises:

and a fixing bolt (213) configured to fix the lining plate (211) and the sealing plate (212), wherein the fixing bolt (213) is loosened when the adjusting bolt is screwed on the lining plate (211).

5. A gate valve according to any of claims 1 to 4, characterised in that the gate valve further comprises:

a driving assembly (30) is configured to drive the valve core assembly (20) to slide in the valve cavity (11) so as to block or communicate the two pipeline ports (13).

6. A gate valve according to claim 5, characterized in that a valve cover (12) is arranged on the valve body (10), the valve cover (12) is covered and sealed on the valve cavity (11), and the driving assembly (30) comprises:

a drive member (32) disposed on the valve cap (12); and

the connecting rod (31) is arranged in the valve cavity (11), the connecting rod (31) comprises a first connecting rod (311) and a second connecting rod (312) which are hinged to each other, the first connecting rod (311) is hinged to the valve core assembly (20), the second connecting rod (312) is hinged to the valve cover (12), and the output end of the driving piece (32) penetrates through the valve cover (12) and is hinged to the second connecting rod (312).

7. A gate valve according to claim 6, characterized in that the hinge point of the second link (312) and the valve cover (12) is located at the edge of the valve cover (12), and the hinge point of the second link (312) and the driving member (32) is located at the end of the second link (312) near the hinge point of the second link (312) and the valve cover (12).

8. A gate valve according to claim 7, characterized in that the length of the second link (312) is larger than the length of the first link (311).

9. The gate valve of claim 6, wherein the spool assembly (20) further comprises:

the mounting plate (23), first connecting rod (311) with mounting plate (23) are articulated mutually, case board (21) sets up on mounting plate (23).

10. A gate valve according to any one of claims 1 to 4, wherein the valve core assembly (20) slides in the valve cavity (11) through a sliding structure, and the sliding structure is a roller sliding structure or a guide rail sliding structure.