阅读说明：本技术 一种带有导液功能的通风管用闸阀 (Gate valve with liquid guiding function for ventilation pipe ) 是由 钟平 朱青青 于 2021-09-09 设计创作，主要内容包括：本发明公开了一种带有导液功能的通风管用闸阀,属于阀的技术领域,该通风管道用闸阀包括阀体,所述阀体两端均设置有连接件,阀体内部设置有发射板和引力板,所述发射板与电源负极电连接,所述引力板与电源正极电连接,阀体内部设置有冷凝板和热压板,所述热压板在阀体内散发热量,所述冷凝板对空气中的水分进行冷凝。引力板通过正电场对发射板上的电子进行吸引,使发射板上的电子打破势垒,并向引力板运动,电子在运动过程中与空气中的杂质结合,使杂质带负电,杂质在引力板的吸引下,吸附在引力板上,进而与空气分离,热压板通过热空气的膨胀将空气往冷凝板的方向挤压,冷凝板对空气中的水分进行冷凝,使水分与空气分离。(The invention discloses a gate valve with a liquid guiding function for a ventilating pipe, which belongs to the technical field of valves and comprises a valve body, wherein connecting pieces are arranged at two ends of the valve body, an emission plate and an attraction plate are arranged inside the valve body, the emission plate is electrically connected with a negative electrode of a power supply, the attraction plate is electrically connected with a positive electrode of the power supply, a condensation plate and a hot pressing plate are arranged inside the valve body, the hot pressing plate dissipates heat in the valve body, and the condensation plate condenses moisture in the air. The attraction plate attracts electrons on the emission plate through a positive electric field, so that the electrons on the emission plate break a potential barrier and move towards the attraction plate, the electrons are combined with impurities in air in the moving process, the impurities are charged with negative electricity, the impurities are adsorbed on the attraction plate under the attraction of the attraction plate and are further separated from the air, the hot pressing plate extrudes the air towards the direction of the condensation plate through expansion of the hot air, and the condensation plate condenses moisture in the air, so that the moisture is separated from the air.)

1. The utility model provides a gate valve for ventilation pipe with drain function which characterized in that: the gate valve for the ventilation pipe comprises a valve body (1), wherein connecting pieces (2) are arranged at two ends of the valve body (1), an emitting plate (105) and an attraction plate (106) are arranged inside the valve body (1), the emitting plate (105) is electrically connected with a power supply cathode, the attraction plate (106) is electrically connected with a power supply anode, a condensing plate (102) and a hot pressing plate (103) are arranged inside the valve body (1), the hot pressing plate (103) dissipates heat in the valve body (1), the condensing plate (102) condenses moisture in the air, and a valve plate (101) is arranged inside the valve body (1) on one side of the condensing plate (102);

the connecting piece (2) connects the valve body (1) with the vent pipe.

2. The gate valve for a vent pipe with a liquid guiding function according to claim 1, wherein: the emission plate (105) is located above the inside of the valve body (1), the attraction plate (106) is located below the inside of the valve body (1), the attraction plate (106) is rotatably connected with the valve body (1), a plurality of spurs (107) are arranged on the emission plate (105) and the attraction plate (106), electrons are accumulated on the emission plate (105), and the attraction plate (106) attracts the electrons through a positive electric field.

3. The gate valve for a vent pipe with a liquid guiding function according to claim 2, wherein: the hot pressing plate (103) is located above the condensation plate (102), two P-type semiconductors (1011) and two N-type semiconductors (1012) are arranged on the inner wall of the valve body (1), two ends of the hot pressing plate (103) are respectively connected with one P-type semiconductor (1011) and one N-type semiconductor (1012), and two ends of the condensation plate (102) are respectively connected with the other P-type semiconductor (1011) and the other N-type semiconductor (1012).

4. The gate valve for a vent pipe with a liquid guiding function according to claim 3, wherein: the condensing plate (102) is provided with a plurality of groups of fins, and liquid guide holes are formed in the two sides of each fin on the condensing plate (102).

5. The gate valve for a vent pipe with a liquid guiding function according to claim 4, wherein: the water removal device is characterized in that a water removal cabin (1010) is arranged in the valve body (1) and below the condensation plate (102) and the attraction plate (106), a drying block (104) is arranged in the water removal cabin (1010) and below the condensation plate (102), and the drying block (104) absorbs water flowing up and down the condensation plate (102).

6. The gate valve for a vent pipe with a liquid guiding function according to claim 5, wherein: the rotation space has been seted up in one side that removes water tank (1010) on valve body (1), it is provided with ejector pin (108) to rotate the space upper end, rotates the space lower extreme and is provided with drainage tube (109), rotates the space middle part and is provided with the wane, wane one end and ejector pin (108) sliding connection, the wane other end and drainage tube (109) sliding connection, the one end that the wane was kept away from in ejector pin (108) is located inside removing water tank (1010), drainage tube (109) get into under the support of wane and remove water tank (1010), and it has the catheter to rotate the space below, catheter and drainage tube (109) pipe connection.

7. The gate valve for a vent pipe with a liquid guiding function according to claim 6, wherein: each connecting piece (2) comprises four sealing assemblies (201) and four internal expanding assemblies (202);

every seal assembly (201) all includes seal membrane (2011), is located seal membrane (2011) inside and the supporting mechanism who is connected with it, supporting mechanism includes two screw rods (2012), expansion plate (2013) be connected with screw rod (2012), every screw rod (2012) all inclines to set up on connecting piece (2), every the one end and connecting piece (2) of expansion plate (2013) are fixed, and the other end of expansion plate (2013) is provided with apex angle piece (2014), two connect through company's board (2015) between apex angle piece (2014).

8. The gate valve for a vent pipe with a liquid guiding function according to claim 7, wherein: each internal expanding component (202) comprises a bolt (2021), a rotating shaft (2022), two first worm gears (2023) and an inner plate (2025);

the bolt (2021) is rotatably connected with the connecting piece (2), a second worm is arranged on the bolt (2021), the rotating shaft (2022) is located inside the connecting piece (2), first worms are arranged at two ends of the rotating shaft (2022), a second worm wheel is arranged in the middle of the rotating shaft (2022), the second worm wheel is rotatably connected with the second worm, the two first worm wheels (2023) are respectively rotatably connected with the two first worms, a telescopic pull rod (2024) is arranged below each first worm wheel (2023), and two ends of the inner plate (2025) are respectively arranged on the two telescopic pull rods (2024).

Technical Field

The invention relates to the technical field of valves, in particular to a gate valve for a vent pipe with a liquid guiding function.

Background

The gate valve is mainly used for connecting or cutting off a medium in a pipeline, the gate valve for the ventilating pipeline generally comprises a valve body and a flashboard, the gate valve can be divided into three types of manual operation, electric operation and pneumatic operation according to different execution mechanisms, and the flashboard is movably arranged in the valve body and used for blocking or releasing the medium in a medium channel. Although gate valves are classified into various types, high sealing performance is required for each type of gate valve.

The existing gate valve has the following defects: the gate valve cannot remove moisture in the introduced air, and after the moisture forms water in the channel, the inner wall surface of the valve body and the outer surface of the gate plate are corroded, so that the service life of the gate valve is shortened, and a medium is easily polluted; impurities in the air cannot be removed, so that the impurities are accumulated in the valve body, and the impurities are difficult to clean due to long-term accumulation, so that the sealing performance of the gate valve is poor, and the practicability of the gate valve is poor; the size of current gate valve is fixed relatively, perhaps prefabricates the gate valve of unidimensional in advance, and current gate valve difference is suitable for the ventilation pipe of different pipeline diameters, and when the ventilation pipe size changed, just need more renew the gate valve for use cost improves, and adaptability is relatively poor.

Disclosure of Invention

The present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a gate valve for a vent pipe having a fluid-guiding function.

In order to solve the technical problems, the invention provides the following technical scheme: a gate valve for a ventilation pipe with a liquid guiding function comprises a valve body, wherein connecting pieces are arranged at two ends of the valve body, an emission plate and a gravitational plate are arranged inside the valve body, the emission plate is electrically connected with a negative pole of a power supply, the gravitational plate is electrically connected with a positive pole of the power supply, a condensation plate and a hot pressing plate are arranged inside the valve body, the hot pressing plate dissipates heat in the valve body, the condensation plate condenses moisture in the air, and a valve plate is arranged inside the valve body and on one side of the condensation plate;

the connecting piece connects the valve body with the vent pipe. The attraction plate attracts electrons on the emission plate through a positive electric field, so that the electrons on the emission plate break a potential barrier and move towards the attraction plate, the electrons are combined with impurities in the air in the moving process, the impurities are negatively charged, and the impurities are adsorbed on the attraction plate under the attraction of the attraction plate, so that the impurities are separated from the air; the hot pressing plate extrudes air towards the direction of the condensing plate through the expansion of hot air, the condensing plate condenses moisture in the air to separate the moisture from the air, the impurities are separated from the air and the moisture from the air step by step through the arrangement of the attraction plate and the condensing plate, the water and the impurities are prevented from being mixed together through the separation of the water and the impurities step by step, and the adhesion force of the impurities is prevented from being improved and being attached to the spurs or the attraction plate; impurities are attached to the spurs or the attraction plates through water, after the impurities are dried, the connection tightness degree between the impurities and the spurs or the attraction plates is larger than the tightness degree of the impurities directly falling on the spurs or the attraction plates, so that the impurities are difficult to remove, and therefore the impurities and the water are separated step by step; the air is subjected to dust removal treatment, so that impurities and dust are prevented from falling into the valve body to influence the sealing property of the gate valve; carry out dehydration to the air, prevent that water from being detained in the valve body after condensing, prevent that water from corroding the gate valve, influencing the life of gate valve. The connecting piece links together valve body and the air pipe of different pipeline diameters, makes the gate valve be applicable to the air pipe of different pipeline diameters, improves the application range and the adaptability of gate valve.

The emission plate is located above the inside of the valve body, the attraction plate is located below the inside of the valve body, the attraction plate is rotatably connected with the valve body, a plurality of spurs are arranged on the emission plate and the attraction plate, electrons are accumulated on the emission plate, and the attraction plate attracts the electrons through a positive electric field. The spurs are arranged on the opposite end surfaces of the emission plate and the attraction plate, electrons are accumulated on the spurs of the emission plate to form a negative electric field, positrons form a positive electric field on the spurs of the attraction plate, and the spurs shorten the distance between the emission plate and the attraction plate, so that the electrons can break potential barriers at the positions of the spurs more easily and impact the attraction plate; the electrons combine with oxygen to form negative oxygen.

The hot pressboard is located the top of condensing panel, be provided with two P type semiconductors and two N type semiconductors on the valve body inner wall, the both ends of hot pressboard are connected with a P type semiconductor and an N type semiconductor respectively, the both ends of condensing panel are connected with another P type semiconductor and another N type semiconductor respectively. The hot pressboard gives off the heat through the Peltier effect, the hot pressboard heats the air on every side in the valve body, make air thermal expansion on every side, and then near the air extrusion condensing panel that lets in the ventilation pipe, the condensing panel absorbs heat through the Peltier effect, make the air cooling on every side, the heat absorption ability of condensing panel is greater than the heat-sinking capability of hot pressboard, and then avoid condensing panel condensation moisture to receive the influence of hot pressboard, the condensing panel makes the air cooling through the heat absorption, and then come out moisture condensation from the air, realize the separation of water and air.

The condensing plate is provided with a plurality of groups of fins, and liquid guide holes are formed in two sides of each fin on the condensing plate. The fins increase the heat absorption area of the condensing plate and increase the contact area of the condensing plate and air.

The inside water removal cabin of having seted up in the below of condensing panel and gravitation board of valve body, the below that lies in the condensing panel in the water removal cabin is provided with dry piece, dry piece absorbs the water that flows down on the condensing panel. The dewatering cabin provides a space for the rotation of the condensation plate, the drying block is preferably sponge, the drying block absorbs water, the condensation plate and the attraction plate are matched with each other to block the dewatering cabin, a rotating assembly is arranged below the attraction plate, the rotating assembly enables the attraction plate to rotate in the dewatering cabin, the end face of the attraction plate with the spurs faces downwards, the attraction plate rotates, the side end face of the attraction plate is enabled to be in contact with the drying block, when the gate valve is closed, air in the ventilation pipe is squeezed into the valve body, the air squeezes water in the drying block, and the water in the drying block is squeezed out; the rotation of attraction board makes the area of air extrusion drying piece fixed, makes water flow out from one side of drying piece contact attraction board, and water washes away impurity and dust on the thorn in the flow process, realizes the cleanness to the thorn suddenly.

The rotation space has been seted up in one side of dewatering cabin on the valve body, it is provided with the ejector pin to rotate the space upper end, rotates the space lower extreme and is provided with the drainage tube, rotates the space middle part and is provided with the wane, wane one end and ejector pin sliding connection, the wane other end and drainage tube sliding connection, the one end that the wane was kept away from to the ejector pin is located inside the dewatering cabin, the drainage tube gets into in the dewatering cabin under the support of wane, rotates the space below and has the catheter, catheter and drainage tube way connection. The ejector pin provides power for the motion of drainage tube, and the wane transmits, pushes away the drainage tube and rotates the space, and after the gravitation board rotated, the gravitation board extrudeed the ejector pin, makes the ejector pin retract in rotating the space, and the ejector pin promotes the wane, makes the drainage tube stretch into in the dehydration cabin under the promotion of wane, and after the drainage tube stretched into in the dehydration cabin, the drainage tube will remove water cabin and catheter intercommunication, makes the water that flows out in the dry piece flow out the valve body through drainage tube and catheter.

Each connecting piece comprises four sealing components and four internal expansion components;

every seal assembly all includes the seal membrane, is located the inside and rather than the supporting mechanism who is connected of seal membrane, supporting mechanism includes two screw rods, the expansion plate of being connected with the screw rod, every the screw rod all inclines to set up on the connecting piece, every the one end of expansion plate is fixed with the connecting piece, and the other end of expansion plate is provided with apex angle piece, two through linking the board connection between the apex angle piece. The screw rod comprises a threaded rod and a rod sleeve, the threaded rod is rotationally connected with the rod sleeve, and the rod sleeve is connected with the outer plate; the telescopic plate comprises a support plate and an outer plate, the support plate is connected with the outer plate in a sliding mode, one end face of the support plate and one end of the outer plate are on the same plane, the end faces of the outer plate and the support plate on the two end faces on the same plane are both in contact with the sealing film, and the vertex angle block is connected with the outer plate; the connecting plate comprises two fixing plates and a plate sleeve, the two fixing plates are both fixed with the plate sleeve, the two fixing plates stretch in the plate sleeve, the two fixing plates are on the same plane, and the end face of each fixing plate, which is in contact with the sealing membrane, and the end face of each fixing plate, which is in contact with the plate sleeve, are on the same plane; planking and board cover are C type shell structure, and through the flexible of screw rod, the telescopic plate drives the apex angle piece and moves, makes two apex angle pieces be close to each other or keep away from each other, and four seal membranes and supporting mechanism mutually support and seal the ventilation pipe of different pipe diameters, and the seal membrane is located the outside of ventilation pipe and contacts with the outer pipe wall of sealed tube.

Each internal expanding component comprises a bolt, a rotating shaft, two first worm gears and an inner plate;

the bolt is connected with the connecting piece rotation, is provided with the second worm on the bolt, the pivot is located inside the connecting piece, and the pivot both ends all are provided with first worm, and the pivot middle part is provided with the second worm wheel, the second worm wheel rotates with the second worm to be connected, two first worm wheel rotates with two first worms respectively to be connected, every the below of first worm wheel all is provided with flexible pull rod, and the both ends of inner panel set up respectively two on the flexible pull rod. The structure of the telescopic pull rod is the same as that of the screw rod, the bolt is manually screwed, power is transmitted to the worm wheel through the worm wheel, power transmission is performed through the worm wheel and the worm, the telescopic pull rod is rotated, and the inner plate is moved; the movement of the inner plate caused by the shaking of the ventilation pipe can be prevented through the self-locking of the worm gear and the worm; the inner plate carries out the rigidity to the ventilation pipe from the inboard of ventilation pipe, and interior tension module and seal assembly mutually support and make ventilation pipe and gate valve link together.

Compared with the prior art, the invention has the following beneficial effects:

1. the attraction plate attracts electrons on the emission plate through a positive electric field, so that the electrons on the emission plate break a potential barrier and move towards the attraction plate, the electrons are combined with impurities in the air in the moving process, the impurities are negatively charged, and the impurities are adsorbed on the attraction plate under the attraction of the attraction plate, so that the impurities are separated from the air; the hot pressing plate extrudes the air towards the direction of the condensing plate through the expansion of the hot air, and the condensing plate condenses the moisture in the air to separate the moisture from the air; the air is subjected to dust removal treatment, so that impurities and dust are prevented from falling into the valve body to influence the sealing property of the gate valve; carry out dehydration to the air, prevent that water from being detained in the valve body after condensing, prevent that water from corroding the gate valve, influencing the life of gate valve.

2. The four sealing films and the supporting mechanism are mutually matched to clamp the ventilating pipes with different pipe diameters from the outer side, and the sealing films control the sealing between the ventilating pipes and the gate valve; the inner plate fixes the position of the ventilation pipe from the inner side of the ventilation pipe, and the internal expanding assembly and the sealing assembly are matched with each other to connect the ventilation pipe and the gate valve together; the connecting piece links together valve body and the air pipe of different pipeline diameters, makes the gate valve be applicable to the air pipe of different pipeline diameters, improves the application range and the adaptability of gate valve.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of a front view configuration of the present invention;

FIG. 3 is a front view of the interior of the valve body of the present invention;

FIG. 4 is a schematic cross-sectional view of a portion of the valve body of the present invention;

FIG. 5 is a schematic structural view of the region A in FIG. 4 according to the present invention;

FIG. 6 is a schematic view of the impurities of the present invention being adsorbed;

FIG. 7 is a schematic view of the hot platen and cold platen of the present invention in connection with a P-type semiconductor and an N-type semiconductor;

FIG. 8 is a schematic view of the internal structure of the connector of the present invention;

FIG. 9 is a left side view of the connector of the present invention;

FIG. 10 is a schematic structural view of the internal tension assembly of the present invention;

fig. 11 is a schematic structural view of the seal assembly of the present invention.

In the figure: 1. a valve body; 2. a connecting member; 101. a valve plate; 102. a condensing plate; 103. hot pressing plate; 104. drying the blocks; 105. a launch plate; 106. a gravitational plate; 107. bur protruding; 108. a top rod; 109. a drainage tube; 1010. a water removal cabin; 1011. a P-type semiconductor; 1012. an N-type semiconductor; 201. a seal assembly; 202. an internal tension assembly; 2011. a sealing film; 2012. a screw; 2013. a retractable plate; 2014. a vertex angle block; 2015. connecting plates; 2021. a bolt; 2022. a rotating shaft; 2023. a first worm gear; 2024. a telescopic pull rod; 2025. an inner panel.

Detailed Description

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

Referring to fig. 1 to 11, the present invention provides a technical solution: a gate valve with a liquid guiding function for a ventilation pipe comprises a valve body 1, wherein a valve plate 101 is arranged in the valve body 1, an extraction assembly (not shown in the figure) is arranged on the outer side of the valve body 1 and connected with the valve plate 101, and the valve plate 101 is separated from the valve body 1 by the extraction assembly; the two ends of the valve body 1 are both provided with connecting pieces 2, the interior of the valve body 1 is provided with an emitting plate 105 and an attraction plate 106, the emitting plate 105 is electrically connected with the negative pole of a power supply, and the attraction plate 106 is electrically connected with the positive pole of the power supply;

the emitting plate 105 is located above the inside of the valve body 1, the attraction plate 106 is located below the inside of the valve body 1, the attraction plate 106 is rotatably connected with the valve body 1 through a rotating assembly, a plurality of spurs 107 are arranged on the emitting plate 105 and the attraction plate 106, electrons are accumulated on the emitting plate 105, and the attraction plate 106 attracts the electrons through a positive electric field.

The burs 107 are arranged on the mutually opposite end surfaces of the emission plate 105 and the attraction plate 106, electrons are accumulated on the burs 107 of the emission plate 105 to form a negative electric field, positrons form a positive electric field on the burs 107 of the attraction plate 106, the burs 107 shorten the distance between the emission plate 105 and the attraction plate 106, the attraction force applied to the electrons is increased, and the electrons are easier to break the potential barrier at the positions of the burs 107 and rush to the attraction plate 106;

the attraction plate 106 attracts electrons on the emission plate 105 through a positive electric field, so that the electrons on the emission plate 105 break a potential barrier, the electrons are combined with impurities in the air in the movement process, the impurities are negatively charged, the impurities are adsorbed on the attraction plate 106 under the attraction of the attraction plate 106, and then the impurities are separated from the air; meanwhile, the electrons combine with oxygen during movement to form negative oxygen.

The condensing plate 102 and the hot pressing plate 103 are installed inside the valve body 1, the hot pressing plate 103 is located above the condensing plate 102, two P-type semiconductors 1011 and two N-type semiconductors 1012 are arranged on the inner wall of the valve body 1, two ends of the hot pressing plate 103 are respectively connected with one P-type semiconductor 1011 and one N-type semiconductor 1012, two ends of the condensing plate 102 are respectively connected with the other P-type semiconductor 1011 and the other N-type semiconductor 1012, and the condensing plate 102 is located on the right side of the attraction plate 106.

A plurality of groups of fins are fixed on the condensing plate 102, liquid guide holes are formed in two sides of each fin on the condensing plate 102, and the condensing plate 102 is located on the left side of the valve plate 101;

the hot pressing plate 103 radiates heat in the valve body 1 through the Peltier effect, the hot pressing plate 103 heats surrounding air in the valve body 1, the surrounding air is thermally expanded, and the air introduced into the ventilation pipe is extruded to be close to the condensing plate 102;

the condensation plate 102 absorbs heat through the Peltier effect, so that the surrounding air is cooled, the heat absorption capacity of the condensation plate 102 is larger than the heat dissipation capacity of the hot pressing plate 103, the condensation moisture of the condensation plate 102 is prevented from being influenced by the hot pressing plate 103, the condensation plate 102 cools the air through heat absorption, the moisture is condensed out of the air, and the separation of water and the air is realized.

A dewatering chamber 1010 is arranged in the valve body 1 below the condensation plate 102 and the attraction plate 106, a drying block 104 is arranged in the dewatering chamber 1010 below the condensation plate 102, and the drying block 104 absorbs water flowing up and down the condensation plate 102.

The dry block 104 is preferably sponge, the dry block 104 absorbs water, the condensation plate 102 and the attraction plate 106 cooperate with each other to block the dewatering bin 1010, and impurities are prevented from entering the dewatering bin 1010;

the rotating assembly rotates the attraction plate 106 in the dewatering bin 1010, the end face of the attraction plate 106 with the spurs 107 faces downwards, the rotation of the attraction plate 106 causes the side end face of the attraction plate 106 to contact the drying block 104, when the gate valve is closed, the air flowing continuously in the ventilation pipe is squeezed into the valve body 1, and the air squeezes the water in the drying block 104, so that the water in the drying block 104 is squeezed out.

The rotation of the attraction plate 106 enables air to extrude the area of the drying block 104 to be fixed, so that water flows out from one side of the drying block 104 contacting with the attraction plate 106, and the water washes impurities and dust on the burs 107 in the flowing process, thereby realizing the cleaning of the burs 107.

The rotation space has been seted up in one side of dewatering cabin 1010 on valve body 1, the rotation space upper end is provided with ejector pin 108, the rotation space lower extreme is provided with drainage tube 109, the rotation space middle part is provided with the wane, the wane rotates through round pin axle and torsion spring and installs inside the rotation space, wane one end and ejector pin 108 sliding connection, the wane other end and drainage tube 109 sliding connection, the one end that the wane was kept away from to ejector pin 108 is located inside dewatering cabin 1010, drainage tube 109 gets into in dewatering cabin 1010 under the support of wane, there is the catheter below the rotation space, catheter and drainage tube 109 pipe connection.

The valve body 1 is connected with the ventilation pipe through connecting pieces 2, and each connecting piece 2 comprises four sealing assemblies 201 and four internal expansion assemblies 202;

every seal assembly 201 all includes seal membrane 2011, be located the inside and rather than the supporting mechanism who is connected of seal membrane 2011, supporting mechanism includes two screws 2012, the expansion plate 2013 of being connected with screw 2012, every screw 2012 all inclines to set up on connecting piece 2, the one end of every expansion plate 2013 is fixed with connecting piece 2, the other end of expansion plate 2013 is provided with apex angle piece 2014, connect through company's board 2015 between two apex angle pieces 2014.

Further, the one end of seal membrane 2011 is passed through winding mechanism (not drawn in the figure) and is installed inside connecting piece 2, through the motion of apex angle piece 2014, pulls out connecting piece 2 with seal membrane 2011, and when apex angle piece 2014 moved towards the one side that is close to connecting piece 2, winding mechanism pulled back seal membrane 2011, made seal membrane 2011 reset.

The screw 2012 comprises a threaded rod and a rod sleeve, one end of the threaded rod is rotatably connected with the connecting piece 2, a tool groove capable of being connected with a tool is formed in one end of the rotatable connection, the threaded rod is rotatably connected with the rod sleeve, and the rod sleeve is connected with the outer plate;

the expansion plate 2013 comprises a support plate and an outer plate which are connected in a sliding mode, one end face of the support plate and one end of the outer plate are on the same plane, the end faces of the outer plate and the support plate on the two end faces on the same plane are both in contact with a sealing film 2011, and a vertex angle block 2014 is connected with the outer plate;

even board 2015 includes two fixed plates and board cover, and planking and board cover are C type shell structure, and two fixed plates all are fixed with the board cover, and two fixed plates stretch out and draw back in the board cover, and two fixed plates are on same plane, the terminal surface of fixed plate and seal membrane 2011 contact with the terminal surface of board cover and seal membrane 2011 contact on same plane.

Each internal expansion assembly 202 comprises a bolt 2021, a rotating shaft 2022, two first worm gears 2023 and an inner plate 2025;

the bolt 2021 is rotatably connected with the connecting piece 2, a second worm is fixed on the bolt 2021, the rotating shaft 2022 is located inside the connecting piece 2, first worms are respectively arranged at two ends of the rotating shaft 2022, a second worm wheel is arranged in the middle of the rotating shaft 2022, the second worm wheel is rotatably connected with the second worm, the two first worm wheels 2023 are respectively rotatably connected with the two first worms, a telescopic pull rod 2024 is arranged below each first worm wheel 2023, one end of the telescopic pull rod 2024 is located outside the connecting piece 2, and two ends of the inner plate 2025 are respectively installed on the two telescopic pull rods 2024.

The structure of the telescopic pull rod 2024 is the same as that of the screw 2012, the bolt 2021 is manually screwed, power is transmitted to the worm wheel through the worm, and power transmission is performed through the worm wheel and the worm, so that the telescopic pull rod 2024 rotates, and the inner plate 2025 moves; through the self-locking of the worm gear, the movement of the inner plate 2025 caused by the shaking of the ventilation pipe can be prevented.

The working principle of the invention is as follows:

the ventilating pipe is inserted into the connecting piece 2, the inner plate 2025 is inserted into the ventilating pipe, the sealing film 2011 is positioned on the outer side of the ventilating pipe, the bolt 2021 and the screw 2012 are screwed manually through a tool, the telescopic plate 2013 drives the vertex angle block 2014 to move under the driving of the screw 2012, the vertex angle block 2014 moves towards the direction of the ventilating pipe until the sealing film 2011 abuts against the outer wall of the ventilating pipe, and the sealing film 2011 seals the space between the ventilating pipe and the connecting piece 2 by screwing the screw 2012;

the rotation of the bolt 2021 causes the second worm to drive the second worm wheel to rotate, the rotating shaft 2022 drives the first worm and the first worm wheel 2023 to rotate, the telescopic pull rod 2024 is driven by the first worm wheel 2023 to rotate, the inner plate 2025 moves towards the inner wall of the ventilation pipe, the inner plate 2025 abuts against the inner wall, and the sealing assembly 201 and the internal tension assembly 202 are matched with each other to connect the ventilation pipe and the gate valve together.

When ventilation is performed, the valve plate 101 is drawn out of the valve body 1 by the drawing assembly, the gate valve is opened, air flows through the gate valve from the ventilation pipe, the hot pressing plate 103 radiates heat in the valve body 1 through the Peltier effect, the hot pressing plate 103 heats surrounding air in the valve body 1, the surrounding air is thermally expanded, and the air introduced by the ventilation pipe is extruded to the vicinity of the condensation plate 102;

the condensation plate 102 absorbs heat through the Peltier effect to cool the surrounding air, the heat absorption capacity of the condensation plate 102 is larger than the heat dissipation capacity of the hot pressing plate 103, the condensation plate 102 cools the air through heat absorption, and then the moisture is condensed out of the air, so that the separation of the water and the air is realized. The condensed water flows into the dewatering compartment 1010 through the drainage holes and falls onto the drying block 104, and the drying block 104 absorbs the water flowing down the condensing plate 102.

When the air is extruded and moves towards the direction of the condensing plate 102, electrons on the emitting plate 105 break the potential barrier under the attraction of the positive electric field, the electrons are combined with impurities in the air in the moving process, so that the impurities are negatively charged, the impurities are adsorbed on the attraction plate 106 under the attraction of the attraction plate 106, and then the impurities are separated from the air; meanwhile, the electrons combine with oxygen during movement to form negative oxygen.

After the ventilation is finished, the gate valve is closed, the valve plate 101 returns to the valve body 1 again, the rotating assembly rotates the attraction plate 106 in the dewatering bin 1010 by 180 degrees, the end face of the attraction plate 106 with the protruding spine 107 faces downwards, the side end face of the attraction plate 106 is in contact with the drying block 104, air continuously flowing in the ventilation pipe is squeezed into the valve body 1, and the air squeezes water in the drying block 104, so that the water in the drying block 104 is squeezed out.

The rotation of the attraction plate 106 enables air to extrude the area of the drying block 104 to be fixed, so that water flows out from one side of the drying block 104 contacting with the attraction plate 106, and the water washes impurities and dust on the burs 107 in the flowing process, thereby realizing the cleaning of the burs 107.

After the attraction plate 106 rotates, the attraction plate 106 extrudes the ejector rod 108 to enable the ejector rod 108 to retract into the rotating space, the ejector rod 108 pushes the rocker plate to enable the drainage tube 109 to extend into the dewatering chamber 1010 under the pushing of the rocker plate, after the drainage tube 109 extends into the dewatering chamber 1010, the drainage tube 109 communicates the dewatering chamber 1010 with the liquid guide tube, and water flowing out of the drying block 104 flows out of the valve body 1 through the drainage tube 109 and the liquid guide tube.

After the water is discharged, the attraction plate 106 is reset, and the drainage tube 109, the wane and the ejector rod 108 are all reset.

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.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.