CN218761513U

CN218761513U - Knife-shaped gate valve

Info

Publication number: CN218761513U
Application number: CN202223182768.4U
Authority: CN
Inventors: 朱世湖; 陶乃扬; 朱杰
Original assignee: Anhui Qiujing Machinery Manufacturing Co ltd
Current assignee: Anhui Qiujing Machinery Manufacturing Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-03-28
Anticipated expiration: 2032-11-29

Abstract

The utility model discloses a knife gate valve in the technical field of gate valves, including the gate body, valve and second ring flange, the valve fixed connection is in the bottom of the gate body, the second ring flange is located the rear side of valve, the top fixedly connected with cylinder of gate body, the output fixedly connected with control lever of cylinder, the bottom fixedly connected with plug-in strip of control lever, the side fixedly connected with baffle is around the inner chamber bottom of valve, and this knife gate valve, structural design is reasonable, makes the knife gate valve after long-time use, after the knife gate is vigorously washed by liquid, can not produce the space either, can not influence the sealed effect of pipeline, is favorable to the long-term use of pipeline; make in the use of knife gate valve, the impurity that liquid has when circulating in the pipeline can filter the interception, is difficult for making granule impurity to cause the damage easily to the inside meticulous part of knife gate valve, reduces knife gate valve's use cost.

Description

Knife-shaped gate valve

Technical Field

The utility model relates to a gate valve technical field specifically is a knife gate valve.

Background

The knife-shaped gate valve is characterized in that the bottom of a flat plate valve plate is provided with a knife-shaped inclined notch, the knife-shaped inclined notch has a function of cutting off a medium, the valve is closed and is not blocked by the medium, the knife-shaped gate valve is mainly used as a valve inside a pipeline for liquid circulation to interrupt the liquid, and the application range is wide.

After long-time use, the knife gate and the gate are abraded due to long-term friction action of the knife gate and the gate in the knife gate valve and are washed away by liquid, the accuracy between the knife gate and the gate is influenced, gaps are generated, the sealing effect is influenced, and effective interception of a pipeline is not facilitated; in the use process of the knife gate valve, liquid in a pipeline can have impurities when flowing, filtering and intercepting cannot be achieved, particle impurities easily damage fine parts inside the knife gate valve, the use cost of the knife gate valve is improved, and therefore the knife gate valve is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a knife gate valve, which solves the problems that after the knife gate valve is used for a long time, the knife gate and the gate are abraded due to the long-term friction effect inside the knife gate valve and after the knife gate is washed by liquid, the accuracy between the knife gate and the gate is influenced, a gap is generated, and the sealing effect is influenced; and in the use of the knife gate valve, liquid in the pipeline can have impurities when circulating, and cannot be filtered and intercepted, and particle impurities easily cause damage to fine parts in the knife gate valve.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a knife gate valve, includes the floodgate body, valve and second ring flange, valve fixed connection is in the bottom of the floodgate body, the second ring flange is located the rear side of valve, the top fixedly connected with cylinder of the floodgate body, the output fixedly connected with control lever of cylinder, the bottom fixedly connected with plug-in strip of control lever, side fixedly connected with baffle around the inner chamber bottom of valve, it has the draw-in groove to open in the middle of the bottom of valve, the inner chamber bottom of draw-in groove bonds there is the cushion, the first ring flange of fixedly connected with in the middle of the front and back lateral wall of valve, fixedly connected with filter tube between in the middle of the inside wall of second ring flange, both sides fixedly connected with filter screen around between the inside wall of filter tube.

As a further description of the above technical solution:

the middle of the lower side of the front side wall of the brake body is fixedly connected with a starting button, and the starting button is electrically connected with the air cylinder.

As a further description of the above technical solution:

the bottom end of the control rod penetrates through the bottom of the inner cavity of the switch body and extends downwards, and the switch blade is located in the middle of the inner cavity of the valve.

As a further description of the above technical solution:

the shape of baffle is the V-arrangement shape, just the cushion adopts chlorosulfonated polyethylene rubber material to make.

As a further description of the above technical solution:

a groove is formed in the middle of the outer side wall of the second flange plate, and a sealing gasket is bonded on the inner side of the inner cavity of the groove.

As a further description of the above technical solution:

the middle of the inner cavity of the filter pipe is filled with active carbon and is positioned between the inner sides of the filter screens.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this knife gate valve, through draw-in groove and the cushion and the baffle of installation of opening in the floodgate body, be the V-arrangement shape through the baffle, can reduce the scope of damming of the interior plug-in strip of valve, the cushion in the cooperation draw-in groove, it passes through self elasticity to have the wearability, can make the plug-in strip press down when supporting the cushion, compress with the cushion, make knife gate valve after long-time use, after knife gate is widely washed away by liquid, can not produce the space yet, can not influence the sealed effect of pipeline, be favorable to the long-term use of pipeline.

2. This knife gate valve, through the second ring flange of addding, sealed the pad, the filter tube, the filter screen, active carbon and recess, sealed the pad through in the recess makes second ring flange and first ring flange core zonulae occludens, make the residue filter the back through the filter screen, adsorb by the active carbon core again and purify, make in the knife gate valve use, the impurity that liquid has when circulating in the pipeline, can filter the interception, be difficult for making the granule impurity cause the damage easily to the inside meticulous part of knife gate valve, reduce the use cost of knife gate valve.

Drawings

Fig. 1 is a schematic perspective view of a knife gate valve according to the present invention;

fig. 2 is a schematic front sectional view of a knife gate valve according to the present invention;

fig. 3 is a schematic right sectional view of the knife gate valve according to the present invention;

fig. 4 is a left side view schematic structural diagram of the knife gate valve provided by the present invention.

In the figure: 100. a gate body; 110. a start button; 120. a cylinder; 130. a control lever; 140. a knife switch; 200. a valve; 210. a baffle plate; 220. a card slot; 230. an elastic pad; 240. a first flange plate; 300. a second flange plate; 310. a groove; 311. a gasket; 320. a filter tube; 330. a filter screen; 340. activated carbon.

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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified 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 meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The utility model provides a knife gate valve, which can prevent the knife gate from generating a gap after being used for a long time and being washed by liquid, and can not affect the sealing effect of the pipeline, thereby being beneficial to the long-term use of the pipeline; in the use process of the knife gate valve, impurities carried by liquid in a pipeline during circulation can be filtered and intercepted, fine parts in the knife gate valve are not easily damaged by particle impurities, and the use cost of the knife gate valve is reduced, please refer to fig. 1-4, which comprises a gate body 100, a valve 200 and a second flange plate 300;

referring to fig. 1-4 again, the top of the gate body 100 is fixedly connected with an air cylinder 120, the air cylinder 120 is used for driving the movement of the control rod 130 to move up and down, the output end of the air cylinder 120 is fixedly connected with the control rod 130, the control rod 130 is used for controlling the movement of the knife switch 140 to move up and down, the bottom end of the control rod 130 is fixedly connected with the knife switch 140, the knife switch 140 is used for intercepting the movement of the valve 200, and the gate body 100 is used for installing and connecting the valve 200 and the second flange plate 300;

referring to fig. 1-4 again, the front side and the rear side of the bottom of the inner cavity of the valve 200 are fixedly connected with a baffle 210, the baffle 210 is used for reducing the flow-stopping area of the knife switch 140, the middle of the bottom of the valve 200 is provided with a clamping groove 220, the clamping groove 220 is used for installing and connecting the elastic pad 230, the bottom of the inner cavity of the clamping groove 220 is bonded with the elastic pad 230, the elastic pad 230 is used for sealing and connecting the knife switch 140, the middle of the front side wall and the rear side wall of the valve 200 is fixedly connected with a first flange 240, the first flange 240 is used for flange connection with the pipeline core, the valve 200 is fixedly connected to the bottom of the gate body 100, and the valve 200 is used for connecting the pipeline core;

in summary, the clamping groove 220 formed in the gate body 100, and the elastic pad 230 and the baffle 210 installed in the gate body enable the knife gate valve to be used for a long time, and after the knife gate is vigorously washed by liquid, no gap is generated, the sealing effect of the pipeline is not affected, and the long-term use of the pipeline is facilitated.

Referring to fig. 1, 3 and 4 again, a filter pipe 320 is fixedly connected between the middle of the inner side walls of the second flange 300, the filter pipe 320 is used for installing and connecting a filter screen 330, the filter screen 330 is fixedly connected between the front side and the rear side of the inner side walls of the filter pipe 320, the filter screen 330 is used for filtering the liquid movement, the second flange 300 is located at the rear side of the valve 200, specifically, the second flange 300 is connected with the valve 200 through the first flange 240, and the second flange 300 is used for connecting the filter pipe 320.

Referring to fig. 1-4 again, a start button 110 is fixedly connected to the middle of the lower side of the front sidewall of the gate body 100, and the start button 110 is electrically connected to the cylinder 120, so that the cylinder 120 is started by the start button 110.

Referring to fig. 1-4 again, the bottom end of the control rod 130 penetrates the bottom of the inner cavity of the gate body 100 and extends downward, and the gate blade 140 is located in the middle of the inner cavity of the valve 200 and connected to the gate blade 140 through the control rod 130.

Referring to fig. 1 to 4 again, the baffle 210 is in a V shape, and the elastic pad 230 is made of chlorosulfonated polyethylene rubber, so that the baffle 210 blocks the blade 140 due to the V shape, and the strength of the elastic pad 230 is enhanced due to the chlorosulfonated polyethylene rubber.

Referring to fig. 1, fig. 3 and fig. 4 again, a groove 310 is formed in the middle of the outer side wall of the second flange 300, a gasket 311 is adhered to the inner side of the inner cavity of the groove 310, the gasket 311 is connected through the groove 310, and the first flange 240 and the second flange 300 are connected in a sealing manner through the gasket 311.

In conclusion, through the additionally arranged second flange plate 300, the sealing gasket 311, the filtering pipe 320, the filtering net 330, the activated carbon 340 and the groove 310, impurities carried by liquid in a pipeline during circulation can be filtered and intercepted in the use process of the knife-type gate valve, the fine parts in the knife-type gate valve are not easily damaged by the particle impurities, and the use cost of the knife-type gate valve is reduced.

Referring to fig. 1, 3 and 4 again, the middle of the inner cavity of the filtering tube 320 is filled with activated carbon 340, and is located between the inner sides of the filtering net 330, and the liquid core is adsorbed and purified by the activated carbon 340.

When specific use, this technical field personnel will be connected through the first ring flange 240 and the pipeline core flange of floodgate body 100 front side earlier, through sealed the pad 311 in the recess 310, be connected with the second ring flange 300 core of front side by the first ring flange 240 of rear side again, liquid in the pipeline is through the purification in proper order of filter screen 330 and active carbon 340 in the chimney filter 320, make pure liquid pass the transmission of valve 200 core, click start button 110 and start cylinder 120, make the control lever 130 drive plug-in strip 140 and go up and down at valve 200, through the isolation of front and back side shield 210, make plug-in strip 140 get into draw-in groove 220 and push down cushion 230, seal the pipeline, begin to use promptly.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the description of such combinations is not exhaustive in the present specification only for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A knife gate valve which is characterized in that: including the floodgate body (100), valve (200) and second ring flange (300), valve (200) fixed connection be in the bottom of the floodgate body (100), second ring flange (300) are located the rear side of valve (200), top fixedly connected with cylinder (120) of the floodgate body (100), output fixedly connected with control lever (130) of cylinder (120), bottom fixedly connected with plug-in strip (140) of control lever (130), side fixedly connected with baffle (210) around the inner chamber bottom of valve (200), it has draw-in groove (220) to open in the middle of the bottom of valve (200), the inner chamber bottom bonding of draw-in groove (220) has elastic pad (230), fixedly connected with first ring flange (240) in the middle of the front and back lateral wall of valve (200), fixedly connected with filter tube (320) between the middle of the inside wall of second ring flange (300), both sides fixedly connected with filter screen (330) around between the inside wall of filter tube (320).

2. A knife gate valve according to claim 1, characterised in that: the middle of the lower side of the front side wall of the brake body (100) is fixedly connected with a starting button (110), and the starting button (110) is electrically connected with the air cylinder (120).

3. The knife gate valve of claim 1, wherein: the bottom end of the control rod (130) penetrates through the bottom of the inner cavity of the switch body (100) and extends downwards, and the switch blade (140) is located in the middle of the inner cavity of the valve (200).

4. The knife gate valve of claim 1, wherein: the shape of baffle (210) is V-arrangement shape, just elastic pad (230) adopt chlorosulfonated polyethylene rubber material to make.

5. A knife gate valve according to claim 1, characterised in that: a groove (310) is formed in the middle of the outer side wall of the second flange plate (300), and a sealing gasket (311) is bonded on the inner side of the inner cavity of the groove (310).

6. The knife gate valve of claim 1, wherein: the middle of the inner cavity of the filter pipe (320) is filled with active carbon (340) and is positioned between the inner sides of the filter screens (330).