CN217762138U

CN217762138U - Hydraulic engineering gate valve

Info

Publication number: CN217762138U
Application number: CN202221793580.0U
Authority: CN
Inventors: 赵秋菊; 吕启春; 韩发兴; 秦旭明; 金宝
Original assignee: Qinghai Herun Water Conservancy And Hydropower Engineering Co ltd
Current assignee: Qinghai Herun Water Conservancy And Hydropower Engineering Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-11-08
Anticipated expiration: 2032-07-12

Abstract

The application discloses hydraulic engineering gate valve, including disk seat, valve body, end, valve handle, valve ring, stopper, dead lever, support piece, flashboard, limiting plate, shrouding, sealed pad, connecting block, spout, breakwater, fixed pipe, sleeve pipe, loop bar, ejector pin and recess. According to the sealing structure, the sealing plate is arranged in the flashboard of the valve seat, and can be pushed to move when the valve body is closed, so that the sealing gasket on the surface of the sealing plate is in contact with one side of the valve seat, and the other side of the sealing plate is tightly attached to the valve seat through extrusion force, and the sealing performance is improved; the valve plate opening device has the advantages that the operation is convenient, the sealing plate can be loosened when the valve plate is opened, the problem that the gate valve is not easy to operate due to overlarge extrusion force is solved, the convenience of the gate valve is improved, and the service life of the gate valve is prolonged; this application has silt and collects the function, utilizes fluidic impulsive force to realize the removal of breakwater, conveniently clears up the inside silt of disk seat, avoids causing the gate valve to block up the problem, improves gate valve performance.

Description

Hydraulic engineering gate valve

Technical Field

The application relates to the technical field of gate valve application, in particular to a hydraulic engineering gate valve.

Background

The gate valve is an opening and closing member gate plate, is suitable for various places, especially hydraulic engineering pipeline uses the most, the direction of motion of the gate plate is perpendicular to fluid direction, the gate valve can only be opened and closed totally, can not be adjusted and throttled, the gate valve seals through valve base and gate plate contact, usually the sealed face will build-up weld metal material in order to increase the wearability, such as build-up weld 1Cr13, STL6, stainless steel, etc., the gate plate has rigid gate plate and elastic gate plate, according to the difference of the gate plate, the gate valve is divided into rigid gate valve and elastic gate valve, when the gate valve is closed, the sealed face can only rely on the medium pressure to seal, namely only rely on the medium pressure to press the sealed face of the gate plate to the valve base of the opposite side to guarantee the sealed face to seal, this is self-sealing, most gate valves adopt the force-sealing gate plate, namely when the valve is closed, rely on external force to press the valve base to guarantee the leakproofness of the sealed face.

The gate valve is when sealed, and the effect of forced seal is greater than the effect of self sealss, and still causes the fluid leakage easily when forced seal, because of appear the gap easily between long-time back flashboard and the disk seat, leads to the fluid seepage phenomenon to appear, and the fluid contains the equal length of silt of having and stops in disk seat inside, causes the damage to the gate valve easily, leads to the unable effective closure of flashboard easily, and the pipeline silt clearance is inconvenient, increases the operating pressure of gate valve, and then reduces the life of gate valve. A hydraulic engineering gate valve is proposed to the above-mentioned problem.

Disclosure of Invention

The utility model provides a hydraulic engineering gate valve is used for solving the problem that the gate valve sealing performance among the prior art is low in this embodiment.

According to one aspect of the application, a hydraulic engineering gate valve is provided, which comprises a valve seat, a valve body, an end head and a valve handle;

the valve body is fixedly arranged in the middle of the valve seat, an end head is fixedly arranged at the top of the valve body, the interior of the end head is in threaded connection with the valve handle, the valve handle is fixedly connected with a fixed rod through a limiting block, the bottom end of the fixed rod is fixedly connected with a resisting block, the interiors of the valve seat and the valve body are both in sliding connection with the gate plate, a sealing plate is embedded and connected in the interior of the gate plate, a sealing gasket is fixedly connected to the side wall of the sealing plate, a connecting block is fixedly connected to the side end of the sealing plate, a sliding groove is formed in the inner wall of the gate plate, and the interior of the sliding groove is in sliding connection with the connecting block; the fixed pipe is fixedly installed at the bottom of the valve seat, the bottom end of the fixed pipe is in threaded sleeve joint with the sleeve, a sleeve rod is fixedly connected inside the sleeve, and the sleeve rod is movably sleeved with the ejector rod.

Further, disk seat middle part and valve body intercommunication, the valve body passes through the flange and is connected with the end, just the disk seat both ends all are equipped with the flange of being connected with the hydraulic engineering pipeline.

Further, the valve seat is internally connected with the flashboard in an embedded mode, the thickness of the top end of the flashboard is larger than that of the bottom end of the flashboard, and the flashboard is attached to the valve seat and the inner wall of the valve body in a sealing mode respectively.

Furthermore, flashboard top fixedly connected with limiting plate, the stopper has been cup jointed in the inside activity of limiting plate, the stopper is cylindrical structure.

Furthermore, the bottom end of the valve handle and the limiting block are rotatably connected with the inside of the limiting plate, and the limiting block is in contact with the top end of the flashboard.

Further, the flashboard is movably sleeved with the fixing rod, a groove is formed in one side of the flashboard and is connected with the sealing plate in a sliding mode, four sliding grooves are evenly distributed in the inner wall of the groove, and the bottom end of the fixing rod extends into the groove.

Furthermore, the inner side wall of the groove is in sliding connection with the abutting block, the cross section of the abutting block is of a right-angled trapezoid structure, and the inclined surface of the abutting block contacts with the side wall of the sealing plate.

Furthermore, the shrouding is located disk seat and valve body junction, the sealed pad and the disk seat of shrouding surface and the edge laminating of valve seat and valve body junction are connected.

Furthermore, two water baffles are arranged on one side of the valve body, the water baffle positioned at the bottom is rotatably connected with the valve body, the other water baffle is fixedly connected with the valve body, and the water baffle and the sealing plate are positioned on the same side of the flashboard.

Furthermore, a loop bar and an ejector rod are arranged in the fixed tube, the loop bar is connected with the ejector rod through a built-in spring, the bottom end of the ejector rod is connected with the inside of the loop bar in a sliding mode, the top of the ejector rod is in contact with a water baffle, and the water baffle is connected with the top end of the fixed tube in a fitting mode.

Through the above-mentioned embodiment of this application, the gate valve for hydraulic engineering has been adopted, the problem that gate valve sealing performance is low has been solved, the inside shrouding that sets up of flashboard at the disk seat, can promote the shrouding and remove when the valve body is closed, make the sealed pad contact disk seat one side on shrouding surface, and the opposite side is realized closely laminating with the disk seat by the extrusion force, be favorable to improving sealing performance, the convenient operation function has simultaneously, can realize not hard up of shrouding when the valve plate is opened along with the valve plate, realize opening of valve plate again, avoid the too big problem that leads to the difficult operation of gate valve of extrusion force, improve the convenience in utilization of gate valve, improve the life of gate valve, and have silt and collect the function, utilize fluidic impulsive force to realize the removal of breakwater, conveniently clear up the inside silt of disk seat, avoid causing the gate valve jam problem, improve the gate valve.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is an overall perspective view of one embodiment of the present application;

FIG. 2 is a schematic front view of an embodiment of the present application;

FIG. 3 is a schematic front view of an embodiment of the present application;

fig. 4 is a schematic front view of a shutter according to an embodiment of the present application.

In the figure: 1. the valve comprises a valve seat, 2 a valve body, 3 an end, 4 a valve handle, 5 a valve ring, 6 a limiting block, 7 a fixing rod, 8 a butting block, 9 a flashboard, 10 a limiting plate, 11 a sealing plate, 12 a sealing gasket, 13 a connecting block, 14 a sliding groove, 15 a water baffle, 16 a fixing pipe, 17 a sleeve, 18 a sleeve rod, 19 a mandril, 20 and a groove.

Detailed Description

In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all 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 application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as the case may be.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-4, a hydraulic engineering gate valve includes a valve seat 1, a valve body 2, a head 3 and a valve handle 4;

the valve comprises a valve seat 1, a valve body 2, a valve handle 4, a limiting block 6, a fixing rod 7, a supporting block 8, a sealing block 11, a sealing pad 12, a connecting block 13, a chute 14 and a connecting block 13, wherein the valve body 2 is fixedly installed in the middle of the valve seat 1, the top of the valve body 2 is fixedly installed with an end head 3, the inner part of the end head 3 is in threaded connection with the valve handle 4, the valve handle 4 is fixedly connected with the fixing rod 7 through the limiting block 6, the bottom end of the fixing rod 7 is fixedly connected with the supporting block 8, the inner parts of the valve seat 1 and the valve body 2 are both in sliding connection with the shutter 9, the inner part of the shutter 9 is in embedded connection with the sealing plate 11, the side wall of the sealing plate 11 is fixedly connected with the sealing pad 12, the side end of the sealing plate 11 is fixedly connected with the connecting block 13, the inner wall of the shutter 9 is provided with the chute 14 in sliding connection with the connecting block 13; fixed mounting has fixed pipe 16 bottom the disk seat 1, fixed pipe 16 bottom cup joints with sleeve 17 screw thread, the inside fixedly connected with loop bar 18 of sleeve 17, just loop bar 18 is inside to cup joint with ejector pin 19 activity.

The middle part of the valve seat 1 is communicated with a valve body 2, the valve body 2 is connected with an end head 3 through a flange, and flanges connected with hydraulic engineering pipelines are arranged at two ends of the valve seat 1 and used for installing a gate valve; the interior of the valve seat 1 is connected with a flashboard 9 in a jogged mode, the thickness of the top end of the flashboard 9 is larger than that of the bottom end of the flashboard 9, and the flashboard 9 is respectively attached to the inner walls of the valve seat 1 and the valve body 2 in a sealing mode and used for sealing a gate valve; the top of the flashboard 9 is fixedly connected with a limiting plate 10, a limiting block 6 is movably sleeved in the limiting plate 10, and the limiting block 6 is of a cylindrical structure and used for limiting the limiting block 6; the bottom end of the valve handle 4 and the limiting block 6 are rotatably connected with the inside of the limiting plate 10, and the limiting block 6 is in contact with the top end of the flashboard 9 and used for pushing the flashboard 9 to move; the inner part of the gate plate 9 is movably sleeved with a fixed rod 7, a groove 20 is formed in one side of the gate plate 9, the inner part of the groove 20 is connected with a sealing plate 11 in a sliding mode, four sliding grooves 14 which are uniformly distributed are formed in the inner wall of the groove 20, and the bottom end of the fixed rod 7 extends into the groove 20 and is used for enabling the sealing plate 11 to move in the groove 20; the inner side wall of the groove 20 is connected with the abutting block 8 in a sliding mode, the cross section of the abutting block 8 is of a right-angled trapezoid structure, and the inclined surface of the abutting block 8 is in contact with the side wall of the sealing plate 11 and used for pushing the sealing plate 11 to move; the seal plate 11 is positioned at the joint of the valve seat 1 and the valve body 2, and the seal gasket 12 on the surface of the seal plate 11 is in fit connection with the edge of the joint of the valve seat 1 and the valve body 2 and used for improving the sealing performance; two water baffles 15 are arranged on one side of the valve body 2, the water baffle 15 positioned at the bottom is rotatably connected with the valve body 2, the other water baffle 15 is fixedly connected with the valve body 2, and the water baffle 15 and the sealing plate 11 are positioned on the same side of the gate plate 9 and are used for sealing a top pipe orifice of the fixed pipe 16; fixed 16 inside loop bars 18 and the ejector pin 19 of being equipped with of pipe, loop bar 18 is connected with ejector pin 19 through built-in spring, 19 bottom and the inside sliding connection of loop bar 18 of ejector pin, 19 top contact breakwaters 15 of ejector pin, breakwaters 15 is connected with the laminating of fixed 16 tops of pipe, the clearance of the inside silt of convenient fixed 16 of pipe.

When the valve is used, when the gate valve is closed, the valve ring 5 is rotated to drive the valve handle 4 to rotate at the end 3, the valve handle 4 drives the limiting block 6 and the fixing rod 7 to rotate and move downwards, so that the fixing rod 7 drives the abutting block 8 to contact the sealing plate 11, and the sealing plate 11 drives the connecting block 13 to move in the chute 14, so that the sealing plate 11 is driven to move out of the groove 20, the sealing gasket 12 is driven to contact the inner wall of the valve seat 1, when the limiting block 6 moves in the limiting plate 10 and contacts the top of the valve plate, the limiting block 6 pushes the gate plate 9 to move downwards, the gate plate 9 is embedded at the bottom of the valve seat 1 to realize sealing, and at the same time, the sealing gasket 12 is driven by the sealing plate 11 to be tightly attached to the inner wall of the valve seat 1 to realize tight sealing; when the gate valve is opened, the limiting block 6 moves to the top of the limiting plate 10, so that the abutting block 8 is separated from the closing plate 11, the sealing gasket 12 does not produce extrusion force on the valve seat 1 any more, and the limiting block 6 drives the limiting plate 10 and the flashboard 9 to move upwards at the same time to open the flashboard 9; when closing disk seat 1, can effectively prevent the water hammer effect through breakwater 15, and fluid damps the back silt and is located inside disk seat 1, 18 inside elasticity promotion ejector pins 19 of loop bar push away 15 with breakwater this moment, silt falls to fixed pipe 16 inside this moment, store through sleeve pipe 17 and collect, after opening the gate valve, the extrusion force that produces when the fluid flows promotes breakwater 15 and removes, make 15 laminating of breakwater in fixed pipe 16 departments, unscrew sleeve pipe 17 this moment, discharge the clearance with sleeve pipe 17 after fixed pipe 16 inside silt and tighten once more, make things convenient for the clearance of silt in disk seat 1, improve the convenience of use.

The application has the advantages that:

1. according to the sealing structure, the sealing plate is arranged in the flashboard of the valve seat, and can be pushed to move when the valve body is closed, so that the sealing gasket on the surface of the sealing plate is in contact with one side of the valve seat, and the other side of the sealing plate is tightly attached to the valve seat through extrusion force, and the sealing performance is improved;

2. the valve plate opening device has the advantages that the valve plate opening device has the function of convenience in operation, the sealing plate can be loosened when the valve plate is opened, then the valve plate is opened, the problem that the gate valve is not easy to operate due to overlarge extrusion force is solved, the use convenience of the gate valve is improved, and the service life of the gate valve is prolonged;

3. this application has silt and collects the function, utilizes fluidic impulsive force to realize the removal of breakwater, conveniently clears up the inside silt of disk seat, avoids causing the gate valve to block up the problem, improves gate valve performance.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a hydraulic engineering gate valve which characterized in that: comprises a valve seat (1), a valve body (2), an end head (3) and a valve handle (4);

the valve comprises a valve seat (1), a valve body (2) and a fixing rod (7), wherein an end head (3) is fixedly mounted at the top of the valve body (2), the interior of the end head (3) is in threaded connection with a valve handle (4), the valve handle (4) is fixedly connected with the fixing rod (7) through a limiting block (6), a resisting block (8) is fixedly connected with the bottom end of the fixing rod (7), the interiors of the valve seat (1) and the valve body (2) are both in sliding connection with a flashboard (9), a sealing board (11) is embedded and connected in the flashboard (9), a sealing gasket (12) is fixedly connected to the side wall of the sealing board (11), a connecting block (13) is fixedly connected to the side end of the sealing board (11), a sliding groove (14) is formed in the inner wall of the flashboard (9), and the interior of the sliding groove (14) is in sliding connection with the connecting block (13); the fixed mounting of disk seat (1) bottom has fixed pipe (16), fixed pipe (16) bottom cup joints with sleeve pipe (17) screw thread, the inside fixedly connected with loop bar (18) of sleeve pipe (17), just loop bar (18) inside cup joints with ejector pin (19) activity.

2. A hydraulic engineering gate valve according to claim 1, characterized in that: disk seat (1) middle part and valve body (2) intercommunication, valve body (2) are connected with end (3) through the flange, just disk seat (1) both ends all are equipped with the flange of being connected with the hydraulic engineering pipeline.

3. A hydraulic engineering gate valve according to claim 1, characterized in that: the valve seat is characterized in that the valve seat (1) is connected with the flashboard (9) in an embedded mode, the thickness of the top end of the flashboard (9) is larger than that of the bottom end of the flashboard, and the flashboard (9) is attached to the inner walls of the valve seat (1) and the valve body (2) in a sealing mode respectively.

4. A hydraulic engineering gate valve according to claim 1, characterized in that: the top of the flashboard (9) is fixedly connected with a limiting plate (10), a limiting block (6) is movably sleeved inside the limiting plate (10), and the limiting block (6) is of a cylindrical structure.

5. A hydraulic engineering gate valve according to claim 1, characterized in that: the bottom end of the valve handle (4) and the limiting block (6) are rotatably connected with the inside of the limiting plate (10), and the limiting block (6) is in contact with the top end of the flashboard (9).

6. A hydraulic engineering gate valve according to claim 1, characterized in that: flashboard (9) inside cup joints with dead lever (7) activity, flashboard (9) one side is seted up fluted (20), just recess (20) inside and shrouding (11) sliding connection, recess (20) inner wall is equipped with four evenly distributed's spout (14), dead lever (7) bottom extends to inside recess (20).

7. A hydraulic engineering gate valve according to claim 6, characterized in that: the inner side wall of the groove (20) is in sliding connection with the abutting block (8), the cross section of the abutting block (8) is of a right-angled trapezoid structure, and the inclined surface of the abutting block (8) contacts with the side wall of the sealing plate (11).

8. A hydraulic engineering gate valve according to claim 1, characterized in that: the shrouding (11) are located disk seat (1) and valve body (2) junction, sealed pad (12) and disk seat (1) and valve body (2) junction edge laminating on shrouding (11) surface are connected.

9. A hydraulic engineering gate valve according to claim 1, characterized in that: the water-retaining valve is characterized in that two water-retaining plates (15) are arranged on one side of the valve body (2), the water-retaining plates (15) located at the bottom are rotatably connected with the valve body (2), the other water-retaining plates (15) are fixedly connected with the valve body (2), and the water-retaining plates (15) and the sealing plate (11) are located on the same side of the flashboard (9).

10. A hydraulic engineering gate valve according to claim 1, characterized in that: the water-retaining pipe is characterized in that a sleeve rod (18) and an ejector rod (19) are arranged inside the fixed pipe (16), the sleeve rod (18) is connected with the ejector rod (19) through an internal spring, the bottom end of the ejector rod (19) is connected with the sleeve rod (18) in a sliding mode, the top of the ejector rod (19) is in contact with a water baffle (15), and the water baffle (15) is connected with the top end of the fixed pipe (16) in a fitting mode.