CN221974450U - A high vacuum flapper valve - Google Patents

Abstract

The utility model discloses a high vacuum baffle valve, which relates to the field of valve technology, and comprises a valve body, a cylinder and an electromagnetic valve, wherein a valve seat is formed in the valve body; the cylinder body of the air cylinder is provided with an electromagnetic valve mounting seat; the electromagnetic valve mounting seat is provided with a first flow passage and a second flow passage, the first flow passage is communicated with a rodless cavity of the air cylinder, the second flow passage is communicated with a rod cavity of the air cylinder, the first flow passage penetrates through the surface of the electromagnetic valve mounting seat to form a first air vent, the second flow passage penetrates through the surface of the electromagnetic valve mounting seat to form a second air vent, and the electromagnetic valve is fixed on the electromagnetic valve mounting seat; the solenoid valve has a first working port aligned with and communicating with the first vent and a second working port aligned with and communicating with the second vent. The utility model can solve the problems of cross disorder of the air pipe, inconvenient connection and the like when the air pipe is connected with the air cylinder and the electromagnetic valve.

Description

A high vacuum flapper valve

Technical Field

The utility model relates to the field of valve technology, in particular to a high vacuum baffle valve.

Background Art

The pneumatic high vacuum flapper valve is a valve used to connect or cut off the air flow in the vacuum pipeline. It includes a valve body, a cylinder and a solenoid valve. The solenoid valve is connected to the air source, and the cylinder is supplied with air through the solenoid valve to drive the piston of the cylinder to extend and retract. The cylinder is set on the valve body and the piston rod of the cylinder extends into the valve body. The end of the piston rod away from the cylinder body is connected to the baffle. When the cylinder drives the baffle to move down, the baffle cooperates with the valve seat inside the valve body to isolate the inner cavity of the valve body, thereby cutting off the pneumatic high vacuum flapper valve; when the cylinder drives the baffle to move up, the baffle separates from the valve seat inside the valve body to open the pneumatic high vacuum solenoid valve.

In the prior art, the cylinder and the working port of the solenoid valve are connected by an air pipe, which is inconvenient to assemble and difficult to ensure the air tightness of the connection. On the other hand, since the air outlet of the pneumatic high vacuum flapper valve is in a sealed state under normal conditions, the lower working port of the solenoid valve needs to be connected to the upper air guide hole of the cylinder; the upper working port of the solenoid valve needs to be connected to the lower air guide hole of the cylinder, which causes the two air pipes to cross and the air pipe arrangement to be disordered.

Summary of the invention

The utility model aims to provide a high vacuum baffle valve, which solves the problems of disordered air pipe crossing and inconvenient connection when an air cylinder and a solenoid valve are connected through an air pipe.

The above technical objectives of the utility model are achieved through the following technical solutions:

The utility model provides a high vacuum baffle valve, comprising a valve body, a cylinder and a solenoid valve, wherein a valve seat is formed in the valve body, a piston rod of the cylinder is connected with a baffle for abutting and blocking the valve seat, and the solenoid valve is connected to an external air source and the cylinder; a solenoid valve mounting seat is arranged on the cylinder body of the cylinder;

The solenoid valve mounting seat is provided with a first flow channel and a second flow channel, the first flow channel is connected to the rodless chamber of the cylinder, the second flow channel is connected to the rod chamber of the cylinder, the first flow channel passes through the surface of the solenoid valve mounting seat to form a first air vent, the second flow channel passes through the surface of the solenoid valve mounting seat to form a second air vent, and the solenoid valve is fixed to the solenoid valve mounting seat; the solenoid valve has a first working port and a second working port, the first working port is aligned with and connected to the first air vent, and the second working port is aligned with and connected to the second air vent.

In this solution, the solenoid valve is connected and communicated with the cylinder through the solenoid valve mounting seat. The first flow channel and the second flow channel are arranged in the solenoid valve mounting seat. When the solenoid valve is connected to the cylinder, the first working port on the solenoid valve is opposite to the first air vent on the solenoid valve mounting seat, and the second working port on the solenoid valve is opposite to the second air vent on the solenoid valve mounting seat. When the high vacuum flapper valve needs to be closed, the external gas source supplies gas to the solenoid valve, and the compressed gas enters the first flow channel through the first working port and the first vent, thereby entering the rodless chamber of the cylinder, pushing the piston rod to drive the baffle to move down to block the valve seat, and at the same time, the gas in the rod chamber can be discharged back to the solenoid valve through the second flow channel, the second vent, and the second working port, thereby closing the high vacuum flapper valve; when the high vacuum flapper valve needs to be opened, the solenoid valve stem moves to switch the working position, and the compressed gas enters the rod chamber from the second working port, the second vent, and the second flow channel, and the gas in the rodless chamber is discharged through the first flow channel, the first vent, and the first working port flow channel solenoid valve, thereby driving the piston rod to drive the baffle to move up so that the baffle leaves the valve seat, thereby realizing the opening of the high vacuum flapper valve. Therefore, through the improvement of the structure, the solenoid valve and the cylinder do not need to be connected to the air pipe, which reduces the air tightness requirements of the air pipe connection, facilitates the installation of the solenoid valve, and at the same time, there is no exposed air pipe, so that the overall structure is simple and not easy to damage.

Furthermore, one end of the first flow channel away from the first vent penetrates the solenoid valve mounting seat to form a third vent, the third vent is aligned with the second working port, and a first blocking member is detachably provided in the third vent;

One end of the second flow channel away from the second vent penetrates the solenoid valve mounting seat to form a fourth vent, the fourth vent is aligned with the first working port, and a second blocking member is detachably connected to the fourth vent.

In this solution, the first flow channel forms a third vent connected to the second working port, and the third vent is blocked by the first blocking piece, so that under normal circumstances, the gas flows into or flows out of the first flow channel through the first working port and the first vent. Under special circumstances, the first blocking piece can be blocked at the first vent, and the third vent is connected to the second working port, so that the gas can also flow into the first flow channel through the second working port. Similarly, when necessary, the second blocking piece can also be removed from the fourth vent and blocked at the second vent, so that the gas can flow into or flow out of the second flow channel from the first working port and the fourth vent. In this way, the connection method between the solenoid valve and the cylinder can be changed according to needs, thereby improving the applicability of the high vacuum baffle valve.

Further, the first blocking piece is a spherical component, and the first blocking piece is interference-fitted with the third vent; the second blocking piece is a spherical component, and the second blocking piece is interference-fitted with the fourth vent.

Further, the first flow channel penetrates the electromagnetic valve mounting seat toward the side of the cylinder to form a first connection port connected to the rodless chamber of the cylinder, and the first connection port is coaxially arranged with the third vent;

The second flow channel penetrates the side of the solenoid valve mounting seat facing the cylinder to form a second connecting port connected to the rod chamber of the cylinder, and the second connecting port is coaxially arranged with the fourth vent.

Further, the first flow channel includes a first vertical cavity extending vertically, a first air inlet cavity extending horizontally, and a first connecting cavity extending horizontally; the first air inlet cavity and the first connecting cavity are vertically connected to the first vertical cavity, the first air inlet cavity penetrates the electromagnetic valve mounting seat on one side facing the electromagnetic valve to form the first vent, and the first connecting cavity penetrates the opposite sides of the electromagnetic valve mounting seat to form the third vent and the first connecting port;

The second flow channel includes a second vertical cavity extending vertically, a second air inlet cavity extending horizontally, and a second connecting cavity extending horizontally. The second air inlet cavity and the second connecting cavity are both vertically connected to the second vertical cavity. The second air inlet cavity passes through the solenoid valve mounting seat to form the second air vent toward the side of the solenoid valve. The second connecting cavity passes through the opposite sides of the solenoid valve mounting seat to form the fourth air vent and the second connecting port.

In the present embodiment, the first flow channel includes a first vertical cavity, a first air inlet cavity and a first connecting cavity. The first vertical cavity extends vertically, and the first air inlet cavity and the first connecting cavity extend horizontally perpendicular to the first vertical cavity. The linear cavity facilitates the opening of the first vertical cavity, the first air inlet cavity and the first connecting cavity, and also facilitates the formation of the first air vent, the first connecting port and the third air vent (such as directly drilling a circular hole on the solenoid valve mounting seat by a lathe to form the first vertical cavity, the first air inlet cavity and the first connecting cavity); similarly, the second flow channel includes a second vertical cavity, a second air inlet cavity and a second connecting cavity. The second vertical cavity extends vertically, and the second air inlet cavity and the second connecting cavity extend horizontally perpendicular to the second vertical cavity, which facilitates the opening of the second vertical cavity, the second air inlet cavity and the second connecting cavity and the formation of the second air vent, the second connecting port and the fourth air vent.

Furthermore, both the first vertical cavity and the second vertical cavity vertically penetrate the ends of the solenoid valve mounting seat to form openings connected to the outside world, a third sealing piece is detachably installed in the ends of the first vertical cavity opening, and a fourth sealing piece is detachably installed in the ends of the second vertical cavity opening.

In this solution, the first vertical cavity and the second vertical cavity penetrate the end of the electromagnetic valve mounting seat to form an opening, so that the electromagnetic valve can be connected to the cylinder at the first vent, the second vent, the third vent and the fourth vent, and can also be connected to the opening of the first vertical cavity and the second vertical cavity at the end of the mounting seat through the air pipe, thereby further improving the applicability of the high vacuum electromagnetic valve. At the same time, the first vertical cavity and the second vertical cavity vertically penetrate the electromagnetic valve mounting seat, making it more convenient to open the first vertical cavity and the second vertical cavity (such as directly turning the first vertical cavity and the second vertical cavity by a lathe, and the open opening is used for the lathe to advance and retract).

Furthermore, the solenoid valve mounting seat is integrally formed with the cylinder body of the cylinder.

Furthermore, in a horizontal cross section, the solenoid valve mounting seat is in an inverted trapezoidal shape with an area gradually decreasing in a direction approaching the cylinder, and the cylinder body of the cylinder is provided with two isolation grooves on both sides of the solenoid valve mounting seat, and the two isolation grooves are arranged parallel to each other along the length direction.

In this solution, the solenoid valve mounting seat is in an inverted trapezoidal shape in a horizontal cross section, so that the area on the side close to the solenoid valve is larger to facilitate the installation of the solenoid valve, and the area on the side close to the cylinder is smaller, and the opposite sides of the solenoid valve mounting seat are separated from the cylinder by two parallel isolation grooves, thereby facilitating the molding and mold opening of the solenoid valve mounting seat.

Furthermore, the solenoid valve is provided with at least two mounting holes, the solenoid valve mounting seat is provided with threaded holes having the same number as the mounting holes, the mounting holes are aligned with the threaded holes one by one, and a connecting screw is simultaneously passed through the aligned mounting holes and the threaded holes.

Furthermore, the solenoid valve is a two-position five-way solenoid valve, which is vertically arranged, with a first working port of the solenoid valve located below a second working port, and sealing rings are arranged around the edges of the first working port and the second working port.

In this solution, the solenoid valve is a two-position five-way solenoid valve, and its two working ports are used for air supply and air return respectively. The edges of the first working port and the second working port are both provided with sealing rings, so that when the solenoid valve is fixed to the solenoid valve mounting seat, the first working port and the first vent port, and the second working port and the second vent port are aligned and connected, the airtightness is good, which facilitates the airtight connection between the solenoid valve and the cylinder.

In summary, the utility model has the following beneficial effects:

In the high-vacuum baffle valve of the utility model, a solenoid valve mounting seat is integrated on the cylinder body of the cylinder, a first flow channel and a second flow channel are opened in the solenoid valve mounting seat, and the first flow channel and the second flow channel are respectively connected to the rodless chamber and the rod chamber of the cylinder. When the solenoid valve is installed on the solenoid valve mounting seat, its first working port is connected with the first air vent, and the second working port is connected with the second air vent. Therefore, there is no need to connect the air pipe. The solenoid valve only needs to be positioned and installed on the solenoid valve mounting seat to realize the connection between the solenoid valve and the cylinder, which facilitates the installation and connection of the solenoid valve, reduces the disorder and trouble during the installation of the air pipe, and solves the problem of difficulty in meeting the air tightness during the installation of the air pipe.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of a high vacuum baffle valve according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of a high vacuum baffle valve according to an embodiment of the present invention.

FIG. 3 is a schematic diagram of the three-dimensional structure of a cylinder and a valve body according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of the exploded structure of a high vacuum baffle valve according to an embodiment of the present invention.

FIG5 is a schematic diagram of a vertical cross-sectional structure of a first flow channel according to an embodiment of the present utility model.

FIG. 6 is a schematic diagram of a vertical cross-sectional structure of a second flow channel according to an embodiment of the present invention.

In the figure:

1000, high vacuum flapper valve; 100, valve body; 110, feed port; 120, discharge port; 130, valve seat; 200, cylinder; 210, rodless chamber; 220, rod chamber; 230, isolation groove; 300, solenoid valve; 310, first exhaust port; 320, first working port; 330, air inlet; 340, second working port; 350, second exhaust port; 360, mounting hole; 370, sealing ring; 400, solenoid valve mounting seat; 410, first flow channel; 411, first vent; 412, first vertical cavity; 413, first air inlet cavity; 414, first connecting cavity; 415, third vent; 416, first connecting port; 420, second flow channel; 421, second vent; 422, second vertical cavity; 423, second air inlet cavity; 424, second connecting cavity; 425, fourth vent; 426, second connecting port; 430, first blocking member; 440, second blocking member; 450, threaded hole; 460, third blocking member; 470, fourth blocking member; 500, baffle; 600, O-ring; 700, connecting screw.

DETAILED DESCRIPTION

The utility model is further described below in conjunction with the accompanying drawings.

The present embodiment discloses a high vacuum flapper valve 1000. Referring to FIG. 1 and FIG. 2 , the high vacuum flapper valve 1000 includes a valve body 100, a cylinder 200 and a solenoid valve 300. The cylinder body of the cylinder 200 is fixed above the valve body 100, and the piston rod of the cylinder 200 extends into the valve body 100. A valve seat 130 is formed in the valve body 100, and the piston rod of the cylinder 200 is connected to a baffle 500 for abutting against and blocking the valve seat 130. The solenoid valve 300 is fixed on the cylinder 200, and the solenoid valve 300 is connected to the external gas source and the cylinder 200.

The valve body 100 is an L-shaped pipe structure, with a feed inlet 110 formed on the side of the valve body 100, a discharge port 120 formed below the valve body 100, and a valve seat 130 formed on the upper edge of the discharge port 120. An O-ring 600 is provided on the side of the baffle 500 facing the valve seat 130. When the cylinder 200 drives the baffle 500 to move toward the valve seat 130, the valve seat 130 abuts against the O-ring 600 on the baffle 500, thereby blocking the discharge port 120 of the valve body 100, so that the high vacuum baffle valve 1000 is in a closed state. When the cylinder 200 drives the baffle 500 to move in a direction away from the valve seat 130, the baffle 500 is separated from the valve seat 130, and the high vacuum baffle valve 1000 is in an open state.

1 to 4, in this embodiment, the cylinder 200 is a double-acting cylinder, which has a rod chamber 220 and a rodless chamber 210. The solenoid valve 300 is a two-position five-way solenoid valve, which has a first exhaust port 310, a first working port 320, an air inlet 330, a second working port 340, and a second exhaust port 350. The air inlet 330 is connected to the air source, and the first working port 320 and the second working port 340 are respectively connected to the rodless chamber 210 and the rod chamber 220 of the cylinder 200. In addition, in other embodiments, the cylinder 200 and the solenoid valve 300 can also be selected from other types, which can drive the piston rod of the cylinder 200 to drive the baffle 500 to slide back and forth.

The cylinder body of the cylinder 200 is provided with a solenoid valve mounting seat 400, and the solenoid valve 300 is fixedly mounted on the solenoid valve mounting seat 400. Specifically, in this embodiment, at least two mounting holes 360 are provided on the solenoid valve 300, and the solenoid valve mounting seat 400 is provided with threaded holes 450 of the same number as the mounting holes 360, and the mounting holes 360 are aligned with the threaded holes 450 in a one-to-one correspondence, and a connecting screw 700 is simultaneously penetrated in the mutually aligned mounting holes 360 and threaded holes 450, so as to fix the solenoid valve 300 on the solenoid valve mounting seat 400. In addition, in other embodiments, the solenoid valve 300 can also be fixedly mounted in other suitable ways.

4 to 6, the solenoid valve mounting seat 400 is provided with a first flow channel 410 and a second flow channel 420. The first flow channel 410 is connected to the rodless chamber 210 of the cylinder 200, and the second flow channel 420 is connected to the rod chamber 220 of the cylinder 200. The first flow channel 410 penetrates the surface of the solenoid valve mounting seat 400 to form a first vent 411, and the second flow channel 420 penetrates the surface of the solenoid valve mounting seat 400 to form a second vent 421.

The first working port 320 of the solenoid valve 300 is aligned with and communicated with the first vent 411 , and the second working port 340 is aligned with and communicated with the second vent 421 .

Thus, the solenoid valve 300 is connected and communicated with the cylinder 200 through the solenoid valve mounting seat 400. The first flow channel 410 and the second flow channel 420 are set in the solenoid valve mounting seat 400. When the solenoid valve 300 is connected with the cylinder 200, the first working port 320 on the solenoid valve 300 is opposite to the first air vent 411 on the solenoid valve mounting seat 400, and the second working port 340 on the solenoid valve 300 is opposite to the second air vent 421 on the solenoid valve mounting seat 400, thereby realizing the communication between the solenoid valve 300 and the cylinder 200.

When the high vacuum baffle valve 1000 needs to be closed, the external air source supplies air to the solenoid valve 300, and the compressed gas enters the first flow channel 410 through the first working port 320 and the first air vent 411, and then enters the rodless chamber 210 of the cylinder 200, pushing the piston rod to drive the baffle 500 to move downward to block the valve seat 130. At the same time, the gas in the rod chamber 220 can return to the solenoid valve 300 through the second flow channel 420, the second air vent 421, and the second working port 340 to be discharged, thereby closing the high vacuum baffle valve 1000.

When the high vacuum flapper valve 1000 needs to be opened, the valve stem of the solenoid valve 300 moves to switch the working position, and the compressed gas enters the rod chamber 220 from the second working port 340, the second vent 421, and the second flow channel 420, and the gas in the rodless chamber 210 is discharged from the first flow channel 410, the first vent 411, and the first working port 320 flow channel solenoid valve 300, thereby driving the piston rod to drive the baffle 500 to move up so that the baffle 500 leaves the valve seat 130, and the high vacuum flapper valve 1000 is opened. Therefore, through the improvement of this structure, it is not necessary to connect the air pipe when the solenoid valve 300 and the cylinder 200 are connected, which reduces the air tightness requirements of the air pipe connection, facilitates the installation of the solenoid valve 300, and at the same time, there is no exposed air pipe, so that the overall structure is simple and not easy to damage.

5 , the first flow channel 410 includes a vertically extending first vertical cavity 412, a horizontally extending first air inlet cavity 413, and a horizontally extending first connecting cavity 414. The vertical extension here refers to extending parallel to the reciprocating direction of the piston rod of the cylinder 200, and the horizontal extension refers to extending perpendicular to the reciprocating direction of the piston rod of the cylinder 200.

The first air inlet cavity 413 and the first connecting cavity 414 are vertically connected to the first vertical cavity 412. The first air inlet cavity 413 penetrates the side of the solenoid valve mounting seat 400 facing the solenoid valve 300 to form a first vent 411. The first connecting cavity 414 penetrates the side of the solenoid valve mounting seat 400 facing the solenoid valve 300 to form a third vent 415. The first connecting cavity 414 penetrates the side of the solenoid valve mounting seat 400 facing the cylinder 200 to form a first connecting port 416. The third vent 415 is aligned with the second working port 340. A first blocking member 430 is detachably provided in the third vent 415. The first connecting port 416 is coaxially arranged with the third vent 415, and the first connecting port 416 is connected to the rodless cavity 210 of the cylinder 200.

Under normal circumstances, the third vent 415 is blocked by the first blocking member 430, and gas can flow into or out of the first flow channel 410 through the first working port 320 and the first vent 411. When the first blocking member 430 is removed from the third vent 415 and installed on the first vent 411, the third vent 415 is connected to the second working port 340, so that gas can also flow into the first flow channel 410 through the second working port 340.

Among them, the first vertical cavity 412 extends vertically, and the first air inlet cavity 413 and the first connecting cavity 414 extend horizontally perpendicular to the first vertical cavity 412. The linear cavity facilitates the opening of the first vertical cavity 412, the first air inlet cavity 413 and the first connecting cavity 414, and also facilitates the formation of the first air vent 411, the first connecting port 416 and the third air vent 415. As in the present embodiment, circular holes can be directly drilled on the solenoid valve mounting seat 400 by a lathe to form the first vertical cavity 412, the first air inlet cavity 413 and the first connecting cavity 414 and the first air vent 411, the first connecting port 416 and the third air vent 415.

6 , the second flow channel 420 includes a second vertical cavity 422 extending vertically, a second air inlet cavity 423 extending horizontally, and a second connecting cavity 424 extending horizontally. The second air inlet cavity 423 and the second connecting cavity 424 are both vertically connected to the second vertical cavity 422. The second air inlet cavity 423 penetrates the electromagnetic valve mounting seat 400 toward the electromagnetic valve 300 to form a second vent 421. The second connecting cavity 424 penetrates the electromagnetic valve mounting seat 400 toward the electromagnetic valve 300 to form a fourth vent 425. The second connecting cavity 424 penetrates the electromagnetic valve mounting seat 400 toward the cylinder 200 to form a second connecting port 426. The second connecting port 426 is connected to the rod cavity 220 of the cylinder 200. The second connecting port 426 and the fourth vent 425 are coaxially arranged.

The fourth vent 425 is aligned with the first working port 320, and a second blocking member 440 is detachably connected to the fourth vent 425. When necessary, the second blocking member 440 can be removed from the fourth vent 425 and blocked at the second vent 421, so that gas can flow into or out of the second flow channel 420 from the first working port 320 and the fourth vent 425. In this way, the communication mode between the solenoid valve 300 and the cylinder 200 can be changed according to needs, thereby improving the applicability of the high vacuum flapper valve 1000.

Among them, the second vertical cavity 422 extends vertically, the second air inlet cavity 423 and the second connecting cavity 424 extend horizontally perpendicular to the second vertical cavity 422, and the linear cavity body facilitates the opening of the second vertical cavity 422, the second air inlet cavity 423 and the second connecting cavity 424, and at the same time facilitates the formation of the second air vent 421, the second connecting port 426 and the fourth air vent 425. As in the present embodiment, the second vertical cavity 422, the second air inlet cavity 423 and the second connecting cavity 424 and the second air vent 421, the second connecting port 426 and the fourth air vent 425 can be formed by directly drilling circular holes on the solenoid valve mounting seat 400 through a lathe.

In this embodiment, the first blocking member 430 is a spherical member, and the first blocking member 430 is interference-fitted with the third vent 415. The second blocking member 440 is a spherical member, and the second blocking member 440 is interference-fitted with the fourth vent 425. The spherical first blocking member 430 and the second blocking member 440 have better airtightness when matched with the third vent 415 and the fourth vent 425, and do not need to be positioned during installation, which is more convenient.

5 and 6, the first vertical cavity 412 and the second vertical cavity 422 both vertically penetrate the upper end of the electromagnetic valve mounting seat 400 to form an opening connected to the outside, and the third blocking member 460 is detachably installed in the end of the opening of the first vertical cavity 412, and the fourth blocking member 470 is detachably installed in the end of the opening of the second vertical cavity 422. Therefore, in addition to being connected to the cylinder 200 at the first vent 411, the second vent 421, the third vent 415 and the fourth vent 425, the electromagnetic valve 300 can also be connected to the openings of the first vertical cavity 412 and the second vertical cavity 422 at the end of the mounting seat through the air pipe, thereby further improving the applicability of the high vacuum electromagnetic valve 300. At the same time, the first vertical cavity 412 and the second vertical cavity 422 vertically penetrate the solenoid valve mounting seat 400, so that it is convenient to open the first vertical cavity 412 and the second vertical cavity 422. For example, in the present embodiment, the first vertical cavity 412 and the second vertical cavity 422 can be formed by directly turning on a lathe, and the open openings are used for the lathe to advance and retract.

2 to 4 , in this embodiment, the solenoid valve mounting seat 400 and the cylinder body of the cylinder 200 are integrally formed, thereby ensuring the strength and airtightness of the connection between the solenoid valve mounting seat 400 and the cylinder 200 .

In the horizontal cross section, the solenoid valve mounting seat 400 is in the shape of an inverted trapezoid with its area gradually decreasing in the direction close to the cylinder 200. The cylinder body of the cylinder 200 is provided with two isolation grooves 230 on both sides of the solenoid valve mounting seat 400, and the two isolation grooves 230 are arranged parallel to each other along the length direction. As a result, the area of the side of the solenoid valve mounting seat 400 close to the solenoid valve 300 is larger to facilitate the installation of the solenoid valve 300, and the area of the side close to the cylinder 200 is smaller, and the opposite sides of the solenoid valve mounting seat 400 are separated from the cylinder 200 by two parallel isolation grooves 230, so as to facilitate the molding and mold opening of the solenoid valve mounting seat 400.

In this embodiment, the solenoid valve 300 is arranged vertically, and the first working port 320 of the solenoid valve 300 is located below the second working port 340. The edges of the first working port 320 and the second working port 340 are surrounded by a sealing ring 370, so that when the solenoid valve 300 is fixed to the solenoid valve mounting seat 400, the first working port 320 and the first vent 411, and the second working port 340 and the second vent 421 are aligned and connected, the airtightness is good, and the airtight connection between the solenoid valve 300 and the cylinder 200 is convenient.

The above are only preferred implementations of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles of the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims (10)

1. The high vacuum baffle valve comprises a valve body (100), a cylinder (200) and an electromagnetic valve (300), wherein a valve seat (130) is formed in the valve body (100), a piston rod of the cylinder (200) is connected with a baffle (500) for abutting and sealing the valve seat (130), and the electromagnetic valve (300) is communicated with an external air source and the cylinder (200); the electromagnetic valve is characterized in that a solenoid valve mounting seat (400) is arranged on a cylinder body of the air cylinder (200);

The electromagnetic valve mounting seat (400) is provided with a first flow passage (410) and a second flow passage (420), the first flow passage (410) is communicated with a rodless cavity (210) of the air cylinder (200), the second flow passage (420) is communicated with a rod cavity (220) of the air cylinder (200), the first flow passage (410) penetrates through the surface of the electromagnetic valve mounting seat (400) to form a first air vent (411), the second flow passage (420) penetrates through the surface of the electromagnetic valve mounting seat (400) to form a second air vent (421), and the electromagnetic valve (300) is fixed on the electromagnetic valve mounting seat (400); the solenoid valve (300) has a first working port (320) and a second working port (340), the first working port (320) being aligned with and in communication with the first vent (411), the second working port (340) being aligned with and in communication with the second vent (421).

2. A high vacuum flapper valve as claimed in claim 1 wherein an end of the first flow passage (410) remote from the first vent (411) extends through the solenoid valve mount (400) to form a third vent (415), the third vent (415) being aligned with the second working port (340), a first closure member (430) being removably disposed within the third vent (415);

One end of the second flow channel (420), which is far away from the second air vent (421), penetrates through the electromagnetic valve mounting seat (400) to form a fourth air vent (425), the fourth air vent (425) is aligned with the first working port (320), and a second blocking piece (440) is detachably connected in the fourth air vent (425).

3. The high vacuum flapper valve of claim 2 wherein the first seal (430) is a spherical member, the first seal (430) being interference fit to the third vent (415); the second blocking piece (440) is a spherical component, and the second blocking piece (440) is in interference fit with the fourth air vent (425).

4. A high vacuum flapper valve as claimed in claim 3 wherein said first flow passage (410) extends through said solenoid valve mounting (400) to a side of said cylinder (200) to form a first connection port (416) communicating with a rodless chamber (210) of said cylinder (200), said first connection port (416) being coaxially disposed with said third port (415);

The second flow passage (420) penetrates through one side of the electromagnetic valve mounting seat (400) towards the air cylinder (200) to form a second connecting port (426) communicated with a rod cavity (220) of the air cylinder (200), and the second connecting port (426) and the fourth air port (425) are coaxially arranged.

5. A high vacuum flapper valve as claimed in claim 4 wherein the first flow passage (410) includes a first vertical cavity (412) extending vertically, a first air inlet cavity (413) extending horizontally and a first connecting cavity (414) extending horizontally; the first air inlet cavity (413) and the first connecting cavity (414) are vertically communicated with the first vertical cavity (412), the first air inlet cavity (413) penetrates through the electromagnetic valve mounting seat (400) to form the first air vent (411) towards one side of the electromagnetic valve (300), and the first connecting cavity (414) penetrates through the opposite sides of the electromagnetic valve mounting seat (400) to form the third air vent (415) and the first connecting port (416);

The second runner (420) comprises a second vertical cavity (422) which vertically extends, a second air inlet cavity (423) which horizontally extends and a second connecting cavity (424) which horizontally extends, the second air inlet cavity (423) and the second connecting cavity (424) are vertically communicated with the second vertical cavity (422), the second air inlet cavity (423) penetrates through the electromagnetic valve mounting seat (400) to form a second air inlet (421) towards one side of the electromagnetic valve (300), and the second connecting cavity (424) penetrates through two opposite sides of the electromagnetic valve mounting seat (400) to form a fourth air inlet (425) and a second connecting port (426).

6. The high vacuum flapper valve of claim 5 wherein the first vertical cavity (412) and the second vertical cavity (422) each vertically extend through an end of the solenoid valve mount (400) to form an opening to the outside, a third seal (460) is removably mounted in the open end of the first vertical cavity (412), and a fourth seal (470) is removably mounted in the open end of the second vertical cavity (422).

7. A high vacuum flapper valve as claimed in claim 1 wherein the solenoid valve mount (400) is integrally formed with the body of the cylinder (200).

8. A high vacuum flapper valve as claimed in claim 1, wherein said solenoid valve mounting base (400) has an inverted trapezoidal shape in which the area thereof is gradually reduced in a direction approaching said cylinder (200) in a horizontal cross section, and the cylinder body of said cylinder (200) is provided with two isolation grooves (230) on both sides of said solenoid valve mounting base (400), and said two isolation grooves (230) are arranged in parallel with each other in a longitudinal direction.

9. A high vacuum flapper valve as claimed in claim 1 wherein said solenoid valve (300) is provided with at least two mounting holes (360), said solenoid valve mounting block (400) is provided with threaded holes (450) in the same number as said mounting holes (360), said mounting holes (360) are aligned in one-to-one correspondence with said threaded holes (450), and a connecting screw (700) is simultaneously threaded into said mounting holes (360) and said threaded holes (450) aligned with each other.

10. The high vacuum flapper valve of claim 1 wherein the solenoid valve (300) is a two-position five-way solenoid valve (300), the solenoid valve (300) being vertically disposed, a first working port (320) of the solenoid valve (300) being positioned below a second working port (340); and sealing rings (370) are arranged around the edges of the first working opening (320) and the second working opening (340).