阅读说明：本技术 一种隧道通风用可调节组合风阀 (Adjustable combined air valve for tunnel ventilation ) 是由 沈锋 于 2021-02-19 设计创作，主要内容包括：本发明涉及通风设备技术领域,且公开了一种隧道通风用可调节组合风阀,包括筒体,所述筒体的内部固定安装有固定转轴,所述固定转轴与所述筒体的中轴线垂直,所述固定转轴上可转动的套设有挡风仓体,所述挡风仓体为一端具有开口的圆柱形仓体结构,所述挡风仓体的直径与所述筒体的内径相适配,所述仓体的开口处还安装有挡风仓门。该隧道通风用可调节组合风阀,打开风阀时可自动吸收风阀挡风片上凝结水,关闭风阀时还能够避免其内部被吸收的水体被排出的有益效果。(The invention relates to the technical field of ventilation equipment, and discloses an adjustable combined air valve for tunnel ventilation, which comprises a barrel, wherein a fixed rotating shaft is fixedly arranged in the barrel, the fixed rotating shaft is vertical to the central axis of the barrel, a wind shielding bin body is rotatably sleeved on the fixed rotating shaft, the wind shielding bin body is a cylindrical bin body structure with an opening at one end, the diameter of the wind shielding bin body is matched with the inner diameter of the barrel, and a wind shielding bin door is further arranged at the opening of the bin body. This tunnel ventilation is with adjustable combination blast gate can absorb the blast gate condensate water on the wind screen automatically when opening the blast gate, can also avoid its inside absorbed water by exhaust beneficial effect when closing the blast gate.)

1. The utility model provides a tunnel ventilation is with adjustable combination blast gate, includes barrel (1), its characterized in that: a fixed rotating shaft (3) is fixedly installed inside the barrel body (1), the fixed rotating shaft (3) is perpendicular to the central axis of the barrel body (1), a wind shielding bin body (2) is rotatably sleeved on the fixed rotating shaft (3), the wind shielding bin body (2) is a cylindrical bin body structure with an opening at one end, the diameter of the wind shielding bin body (2) is matched with the inner diameter of the barrel body (1), a wind shielding bin door (23) is further installed at the opening of the bin body and used for plugging the opening of the wind shielding bin body (2), and a plurality of first water suction holes (231) for water drops to flow through are formed in the wind shielding bin door (23);

wherein, rubber seal membrane (4) are still installed to the inside in the storehouse body, rubber seal membrane (4), the storehouse body (2) and the door (23) three that keep out the wind form seal chamber, fixed rotating shaft (3) are located rubber seal membrane (4) with keep out the wind between door (23), fixed cover is equipped with briquetting (31) still on fixed rotating shaft (3), works as fixed rotating shaft (3) for keep out the wind storehouse body (2) and rotate, briquetting (31) are used for adjusting rubber seal membrane (4) produce deformation, and make rubber seal membrane (4) with keep out the wind corresponding formation negative pressure or malleation between door (23).

2. The adjustable combination damper for tunnel ventilation according to claim 1, wherein: the inside of the wind shielding bin body (2) is also provided with a water absorption cotton body (7), the water absorption cotton body (7) is positioned between the fixed rotating shaft (3) and the wind shielding bin door (23) and is used for absorbing water drops inside the wind shielding bin body (2).

3. The adjustable combination damper for tunnel ventilation according to claim 2, wherein: the pressing block (31) is of a cylindrical structure with two elliptical bottom surfaces, a connecting line of centers of the two bottom surfaces of the pressing block (31) is collinear with an axis of the fixed rotating shaft (3), and when the fixed rotating shaft (3) rotates relative to the wind shielding bin body (2), the pressing block (31) is used for adjusting the contact force between the water absorbing cotton body (7) and the wind shielding bin door (23);

the water absorption cotton body (7) is also fixedly provided with a buffer bearing plate (71) for bearing the pressing force of the pressing block (31).

4. The adjustable combination damper for tunnel ventilation according to claim 3, wherein: a sliding groove (22) is formed in the wind shielding bin body (2), a pressing plate (5) is slidably mounted in the sliding groove (22), the pressing plate (5) is located between the pressing block (31) and the water absorption cotton body (7), the bottom of the pressing plate (5) is connected with the bottom of the sliding groove (22) through a return spring (53), the return spring (53) is used for supporting the pressing plate (5) to be far away from the wind shielding bin door (23), and the pressing plate (5) is connected with the buffering bearing plate (71) through an elastic buffering device (6).

5. The adjustable combination damper for tunnel ventilation according to claim 4, wherein: the inner part of the sliding groove (22) is also fixedly provided with a limiting sliding rod (52), the pressure applying plate (5) is slidably sleeved on the limiting sliding rod (52), the limiting sliding rod (52) is sleeved with the return spring (53), and two ends of the return spring (53) are respectively connected with the pressure applying plate (5) and the sliding groove (22).

6. The adjustable combination damper for tunnel ventilation according to claim 5, wherein: the elastic buffer device (6) comprises a buffer cylinder (61), the bottom of the buffer cylinder (61) is fixed with the buffer bearing plate (71), a buffer sliding plate (63) is slidably sleeved in the buffer cylinder (61), the bottom of the buffer sliding plate (63) is fixedly connected with a buffer spring (64), the bottom of the buffer spring (64) is fixed with the bottom of the inner cavity of the buffer cylinder (61), the top of the buffer sliding plate (63) is fixedly connected with a buffer sliding rod (62), the top of the buffer sliding rod (62) extends to the outside of the buffer cylinder (61), and the top of the buffer sliding rod (62) is fixed with the pressure applying plate (5);

wherein, a buffer vent groove (631) used for adjusting the internal pressure of the buffer cylinder (61) is arranged on the buffer sliding plate (63).

7. The adjustable combination damper for tunnel ventilation according to claim 1, wherein: a plurality of hemispherical water collecting bulges (8) are fixedly mounted on the wind shielding bin door (23), a second water suction hole (81) is formed in each water collecting bulge (8), and the second water suction holes (81) correspond to the first water suction holes (231) in a one-to-one mode.

8. The adjustable combination damper for tunnel ventilation according to claim 7, wherein: the pressing plate (5) is provided with a pressure transmission through hole (51), and the top of the wind shielding bin body (2) is provided with a pressure stabilizing hole (21).

9. The adjustable combination damper for tunnel ventilation of claim 8, wherein: and a rubber lifting plate (41) is fixedly arranged on the rubber sealing film (4).

10. The adjustable combination damper for tunnel ventilation of claim 9, wherein: the side wall of the barrel body (1) is further fixedly communicated with a fixed sleeve (11), a driving sleeve (12) is rotatably sleeved in the fixed sleeve (11), one end of the driving sleeve (12) extends into the barrel body (1) and is fixed with the wind shielding bin body (2), and the other end of the driving sleeve (12) is fixedly connected with a driving turbine (13);

the side wall of the barrel body (1) is further fixedly connected with a fixing plate (9), a driving worm (10) is rotatably mounted on the fixing plate (9), and the driving worm (10) is meshed with the driving worm wheel (13) and connected with the driving worm wheel.

Technical Field

The invention relates to the technical field of ventilation equipment, in particular to an adjustable combined air valve for tunnel ventilation.

Background

The air valve is a device for gas circulation, and is generally used as an exchange and circulation structure of air inside and outside a building, and in rail tunnel engineering, the use of the air valve is particularly common, and the air valve is a junction for exchanging air inside a tunnel and outside air.

The existing air valve is various, mainly manual and automatic, no matter manual air valve or automatic air valve, the structure of the air blocking sheet in the air valve is very simple, the air valve is low in cost, but a great deal of problems occur in the using process, for example, when the air valve is used as an air exchange pivot of two spaces, when the air valve is closed, if the air temperature difference of the two spaces is large, a great amount of water drops can be condensed on the air blocking sheet of the air valve, when the air valve is opened by the air blocking sheet of the rotary air valve, the water drops can fall in the field using the air valve when the water drops are excessive, and therefore the water accumulation phenomenon is caused to the field.

Disclosure of Invention

The invention provides an adjustable combined air valve for tunnel ventilation, which can automatically absorb condensed water on an air baffle of the air valve when the air valve is opened, and solves the problems that when the air valve is used as an air exchange pivot of two spaces and the air valve is closed, a large amount of water drops can be condensed on the air baffle of the air valve if the air temperature difference of the two spaces is large, and when the air valve is opened by rotating the air baffle of the air valve, the water drops excessively and fall into a field using the air valve, so that the water accumulation phenomenon is caused to the field.

The invention provides the following technical scheme: an adjustable combined air valve for tunnel ventilation comprises a barrel, wherein a fixed rotating shaft is fixedly installed inside the barrel and is perpendicular to the central axis of the barrel, a wind shielding bin body is rotatably sleeved on the fixed rotating shaft, the wind shielding bin body is a cylindrical bin body structure with an opening at one end, the diameter of the wind shielding bin body is matched with the inner diameter of the barrel, a wind shielding bin door is further installed at the opening of the bin body and is used for plugging the opening of the wind shielding bin body, and a plurality of first water suction holes for water drops to circulate are formed in the wind shielding bin door; wherein, rubber seal membrane is still installed to the inside in the storehouse body, rubber seal membrane, the storehouse body of keeping out the wind and the door three that keeps out the wind form seal chamber, fixed rotating shaft is located rubber seal membrane with keep out the wind between the door, fixed cover is equipped with the briquetting in the fixed rotating shaft still, works as fixed rotating shaft for keep out the wind the storehouse body and rotate, the briquetting is used for adjusting rubber seal membrane produces deformation, and makes rubber seal membrane with keep out the wind corresponding formation negative pressure or malleation between the door.

As an alternative of the adjustable combined air valve for tunnel ventilation, the invention is characterized in that: the inside in the storehouse body that keeps out the wind still installs the cotton body that absorbs water, the cotton body that absorbs water is located fixed rotating shaft with keep out the wind between the door for absorb the water droplet in the storehouse body that keeps out the wind.

As an alternative of the adjustable combined air valve for tunnel ventilation, the invention is characterized in that: the pressing block is of a cylindrical structure with two elliptical bottom surfaces, a connecting line of centers of the two bottom surfaces of the pressing block is collinear with an axis of the fixed rotating shaft, and when the fixed rotating shaft rotates relative to the wind shielding bin body, the pressing block is used for adjusting the contact force between the water absorbent cotton body and the wind shielding bin door; the water absorption cotton body is also fixedly provided with a buffering bearing plate for bearing the pressing of the pressing block.

As an alternative of the adjustable combined air valve for tunnel ventilation, the invention is characterized in that: the windproof cabin is characterized in that a sliding groove is formed in the windproof cabin body, a pressing plate is slidably arranged in the sliding groove and is located between the pressing block and the absorbent cotton body, the bottom of the pressing plate is connected with the bottom of the sliding groove through a return spring, the return spring is used for supporting the pressing plate to be away from the windproof cabin door, and the pressing plate is connected with the buffering receiving plate through an elastic buffering device.

As an alternative of the adjustable combined air valve for tunnel ventilation, the invention is characterized in that: the inside of the sliding groove is also fixedly provided with a limiting sliding rod, the pressure applying plate is slidably sleeved on the limiting sliding rod, the limiting sliding rod is sleeved with the return spring, and two ends of the return spring are respectively connected with the pressure applying plate and the sliding groove.

As an alternative of the adjustable combined air valve for tunnel ventilation, the invention is characterized in that: the elastic buffer device comprises a buffer cylinder, the bottom of the buffer cylinder is fixed with the buffer bearing plate, a buffer sliding plate is slidably sleeved in the buffer cylinder, the bottom of the buffer sliding plate is fixedly connected with a buffer spring, the bottom of the buffer spring is fixed with the bottom of the inner cavity of the buffer cylinder, the top of the buffer sliding plate is fixedly connected with a buffer sliding rod, the top of the buffer sliding rod extends to the outside of the buffer cylinder, and the top of the buffer sliding rod is fixed with the pressure plate; wherein, a buffer vent groove used for adjusting the internal pressure of the buffer cylinder is arranged on the buffer slide plate.

As an alternative of the adjustable combined air valve for tunnel ventilation, the invention is characterized in that: a plurality of hemispherical water collecting bulges are fixedly mounted on the wind shielding bin door, a second water suction hole is formed in each water collecting bulge, and the second water suction holes correspond to the first water suction holes one to one.

As an alternative of the adjustable combined air valve for tunnel ventilation, the invention is characterized in that: the pressing plate is provided with a pressure conveying through hole, and the top of the wind shielding bin body is provided with a pressure stabilizing hole.

As an alternative of the adjustable combined air valve for tunnel ventilation, the invention is characterized in that: and a rubber lifting plate is fixedly arranged on the rubber sealing film.

As an alternative of the adjustable combined air valve for tunnel ventilation, the invention is characterized in that: the side wall of the barrel is fixedly communicated with a fixed sleeve, a driving sleeve is rotatably sleeved in the fixed sleeve, one end of the driving sleeve extends into the barrel and is fixed with the wind shielding bin body, and the other end of the driving sleeve is fixedly connected with a driving turbine; the side wall of the barrel is fixedly connected with a fixing plate, a driving worm is rotatably mounted on the fixing plate, and the driving worm is meshed with the driving worm wheel.

The invention has the following beneficial effects:

1. this tunnel ventilation is with adjustable combination blast gate can absorb the blast gate condensate water on the wind screen automatically when opening the blast gate, can also avoid its inside absorbed water by exhaust beneficial effect when closing the blast gate.

2. This tunnel ventilation is with adjustable combination blast gate, when closing the blast gate, the briquetting can not exert pressure to rubber seal membrane, when opening the blast gate, stir the storehouse body that keeps out the wind and rotate for fixed rotating shaft, the briquetting can exert pressure to rubber seal membrane this moment to make keep out the wind and produce the negative pressure between door and the rubber seal membrane, thereby absorb the condensate water of condensing on the door that keeps out the wind, avoid the water droplet to drip, the condensate water on the door that keeps out the wind gets into the inside of door that keeps out the wind by first hole of absorbing.

3. This tunnel ventilation is with adjustable combination blast gate, when closing the blast gate, the concrete joint chart, two minor axis b and the rubber seal membrane of briquetting and the cotton body that absorbs water become the vertical state this moment, the briquetting can not exert pressure to rubber seal membrane and the cotton body that absorbs water, when opening the blast gate, stir the storehouse body that keeps out the wind and rotate for fixed rotating shaft, two major axis a of briquetting progressively tend to become perpendicular with rubber seal membrane and the cotton body that absorbs water, the briquetting can exert pressure to rubber seal membrane this moment, and make and keep out the wind and produce the negative pressure between door and the rubber seal membrane, herein the briquetting also can exert pressure to the cotton body that absorbs water simultaneously, make the cotton body that absorbs water and the door contact that keeps out the wind, thereby be favorable to the cotton body that absorbs water to adsorb the.

4. When the air valve is opened, when the pressure block presses the water-absorbing cotton body, the pressure block firstly presses the pressure applying plate downwards, the pressure applying plate moves downwards and compresses the reset spring and the buffer slide rod, the buffer slide rod moves downwards and prompts the buffer slide plate to move downwards in the buffer cylinder and compress the buffer spring, finally the buffer cylinder also presses the buffer bearing plate, finally the water-absorbing cotton body is enabled to be closely contacted with the wind shielding bin door and absorb water drops, when the air valve is closed, the wind shielding bin body resets, the pressure of the pressure block on the rubber sealing membrane and the pressure applying plate is gradually cancelled, the air pressure between the rubber sealing membrane and the wind shielding bin door is increased, meanwhile, the pressure applying plate moves upwards under the action of the reset spring, at the moment, the buffer slide plate also moves upwards in the buffer cylinder, and the contact position of the buffer slide plate and the inner cavity of the buffer cylinder forms a sealing state, the air pressure between the buffering slide plate and the buffer cylinder is slowly relieved through the buffering vent groove under the action of the air pressure between the buffering slide plate and the buffer cylinder, at the moment, the buffering slide plate slowly moves upwards in the buffer cylinder, the upward displacement of the pressure applying plate in a moment is larger than the compensation amount between the buffering slide rod and the buffer cylinder, a certain gap is formed between the water absorbing cotton body and the wind shielding bin door, as the air pressure between the rubber sealing membrane and the wind shielding bin door is increased in the time period, the gap is just used for discharging the air pressure inside the gap through the first water absorbing hole, the water absorbing cotton body is not contacted with the wind shielding bin door, the water in the water absorbing cotton body is not taken away in the air discharging process, the phenomenon that water drops in the air valve are sprayed out through the first water absorbing hole is avoided when the air valve is closed, the upward displacement of the pressure applying plate is equal to the compensation amount of relative movement between the buffering slide rod and the buffer cylinder along, the cotton body that absorbs water contacts with the storehouse door that keeps out the wind at this moment again for when opening the blast gate again, keep out wind and form the negative pressure again between storehouse door and the rubber seal membrane, the cotton body that absorbs water can absorb the moisture that gets into in the storehouse that keeps out the wind immediately.

Drawings

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

FIG. 2 is a schematic sectional view at A-A of the present invention.

FIG. 3 is a schematic view of the internal structure of the elastic buffer device of the present invention.

FIG. 4 is a schematic view of the connection structure of the fixed rotating shaft and the pressing block according to the present invention.

In the figure: 1. the device comprises a cylinder body, 11, a fixing sleeve, 12, a driving sleeve, 13, a driving turbine, 2, a wind shielding cabin body, 21, a pressure stabilizing hole, 22, a sliding groove, 23, a wind shielding cabin door, 231, a first water suction hole, 3, a fixing rotating shaft, 31, a pressing block, 4, a rubber sealing film, 41, a rubber lifting plate, 5, a pressing plate, 51, a pressure conveying through hole, 52, a limiting sliding rod, 53, a return spring, 6, an elastic buffer device, 61, a buffer cylinder, 62, a buffer sliding rod, 63, a buffer sliding plate, 631, a buffer ventilating groove, 64, a buffer spring, 7, a water absorbing cotton body, 71, a buffer bearing plate, 8, a water collecting bulge, 81, a second water suction hole, 9, a fixing plate, 10 and a worm driving worm.

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.

Examples

Referring to fig. 1-4, an adjustable combined air valve for tunnel ventilation comprises a barrel body 1, a fixed rotating shaft 3 is fixedly installed inside the barrel body 1, the fixed rotating shaft 3 is perpendicular to the central axis of the barrel body 1, a wind shielding bin body 2 is rotatably sleeved on the fixed rotating shaft 3, the wind shielding bin body 2 is a cylindrical bin body structure with an opening at one end, the diameter of the wind shielding bin body 2 is matched with the inner diameter of the barrel body 1, a wind shielding bin door 23 is further installed at the opening of the bin body and used for plugging the opening of the wind shielding bin body 2, and a plurality of first water suction holes 231 for water drop circulation are formed in the wind shielding bin door 23; wherein, rubber seal membrane 4 is still installed to the inside in the storehouse body, rubber seal membrane 4, the storehouse body 2 and the door 23 three that keeps out the wind form seal chamber, fixed rotating shaft 3 is located rubber seal membrane 4 and keeps out the wind between the door 23, fixed cover still is equipped with briquetting 31 on the fixed rotating shaft 3, rotate for the storehouse body 2 that keeps out the wind when fixed rotating shaft 3, briquetting 31 is used for adjusting rubber seal membrane 4 and produces deformation, and make rubber seal membrane 4 and keep out the wind corresponding formation negative pressure or malleation between the door 23.

It should be noted that the wind-blocking sheet of the wind valve is mainly composed of a wind-blocking cabin body 2, a wind-blocking cabin door 23 and a rubber sealing film 4, and the three are combined with each other to form the wind-blocking sheet of the wind valve in the embodiment, and the specific working principle is as follows: when closing the blast gate, briquetting 31 can not exert pressure to rubber seal membrane 4, when opening the blast gate, stir the storehouse body 2 that keeps out the wind and rotate for fixed rotating shaft 3, briquetting 31 can exert pressure to rubber seal membrane 4 this moment to promote to keep out the wind and produce the negative pressure between door 23 and the rubber seal membrane 4, thereby absorb the condensate water that condenses on door 23 keeps out the wind, avoid the water droplet drippage, the condensate water on the door 23 that keeps out the wind gets into the inside of door 23 that keeps out the wind by first water absorption hole 231.

The inside of the wind shielding bin body 2 is also provided with a water absorption cotton body 7, and the water absorption cotton body 7 is positioned between the fixed rotating shaft 3 and the wind shielding bin door 23 and is used for absorbing water drops inside the wind shielding bin body 2.

The pressing block 31 is a cylindrical structure with two elliptical bottom surfaces, the connecting line of the centers of the two bottom surfaces of the pressing block 31 is collinear with the axis of the fixed rotating shaft 3, and when the fixed rotating shaft 3 rotates relative to the wind shielding bin body 2, the pressing block 31 is used for adjusting the contact force between the absorbent cotton body 7 and the wind shielding bin door 23; the water absorption cotton body 7 is also fixedly provided with a buffer bearing plate 71 which is used for bearing the pressure of the pressing block 31.

When the air valve is closed, specifically referring to fig. 4, at this time, the two short axes b of the pressing block 31 are perpendicular to the rubber sealing film 4 and the absorbent cotton 7, the pressing block 31 does not press the rubber sealing film 4 and the absorbent cotton 7, when the air valve is opened, the wind shielding bin body 2 is shifted to rotate relative to the fixed rotating shaft 3, the two long axes a of the pressing block 31 gradually tend to be perpendicular to the rubber sealing film 4 and the absorbent cotton 7, at this time, the pressing block 31 presses the rubber sealing film 4 and promotes the wind shielding bin gate 23 and the rubber sealing film 4 to generate negative pressure, meanwhile, the pressing block 31 also presses the absorbent cotton 7, so that the absorbent cotton 7 is in contact with the wind shielding bin gate 23, and water drops entering the wind shielding bin body 2 are favorably adsorbed by the absorbent cotton 7.

The inside of the wind shielding bin body 2 is provided with a sliding groove 22, a pressing plate 5 is slidably arranged in the sliding groove 22, the pressing plate 5 is positioned between the pressing block 31 and the water absorption cotton body 7, the bottom of the pressing plate 5 is connected with the bottom of the sliding groove 22 through a return spring 53, the return spring 53 is used for supporting the pressing plate 5 to be far away from the wind shielding bin door 23, and the pressing plate 5 is connected with a buffering bearing plate 71 through an elastic buffering device 6.

When the wind screen cabin 2 rotates relative to the fixed rotating shaft 3, the pressing block 31 can press the buffer bearing plate 71 through the transmission of the pressing plate 5 and the elastic buffer device 6, so as to press the absorbent cotton 7, and the return spring 53 is compressed at the moment.

The inside of the sliding groove 22 is also fixedly provided with a limit slide rod 52, the pressure applying plate 5 is slidably sleeved on the limit slide rod 52, the limit slide rod 52 is sleeved with a return spring 53, and two ends of the return spring 53 are respectively connected with the pressure applying plate 5 and the sliding groove 22.

With specific reference to fig. 2, the limiting slide rod 52 guides and limits the pressing plate 5, so that the pressing plate 5 can only move up and down in the wind shielding bin 2.

The elastic buffer device 6 comprises a buffer cylinder 61, the bottom of the buffer cylinder 61 is fixed with a buffer bearing plate 71, a buffer sliding plate 63 is slidably sleeved in the buffer cylinder 61, the bottom of the buffer sliding plate 63 is fixedly connected with a buffer spring 64, the bottom of the buffer spring 64 is fixed with the bottom of the inner cavity of the buffer cylinder 61, the top of the buffer sliding plate 63 is fixedly connected with a buffer sliding rod 62, the top of the buffer sliding rod 62 extends to the outside of the buffer cylinder 61, and the top of the buffer sliding rod 62 is fixed with a pressure applying plate 5; the buffer slide 63 is provided with a buffer vent groove 631 for adjusting the internal pressure of the buffer tube 61.

With specific reference to fig. 2-3, the specific working principle is as follows: when the air valve is opened, when the pressing block 31 presses the absorbent cotton 7, the pressing block 31 firstly presses the pressing plate 5 downwards, the pressing plate 5 moves downwards and compresses the return spring 53 and the buffer slide rod 62, the buffer slide rod 62 moves downwards and prompts the buffer slide plate 63 to move downwards in the buffer cylinder 61 and compress the buffer spring 64, finally, the buffer cylinder 61 also presses the buffer bearing plate 71, finally, the absorbent cotton 7 is prompted to contact with the wind screen door 23 tightly and adsorb water drops, when the air valve is closed, the wind screen chamber 2 resets, the pressing block 31 gradually cancels the pressure on the rubber sealing film 4 and the pressing plate 5, the air pressure between the rubber sealing film 4 and the wind screen door 23 is increased, meanwhile, the pressing plate 5 moves upwards under the action of the return spring 53, at the moment, the buffer slide plate 63 also moves upwards in the buffer cylinder 61, and the contact position of the buffer slide plate 63 and the inner cavity of the buffer cylinder 61 forms a sealing state, under the action of the air pressure between the buffer sliding plate 63 and the buffer cylinder 61, the air pressure between the buffer sliding plate 63 and the buffer cylinder 61 is slowly relieved through the buffer vent groove 631, at this time, the buffer sliding plate 63 slowly moves upwards in the buffer cylinder 61, the upward displacement of the pressure applying plate 5 in a moment is larger than the compensation amount between the buffer sliding rod 62 and the buffer cylinder 61, so that a certain gap is formed between the water absorbing cotton 7 and the wind shielding door 23, because the air pressure between the rubber sealing film 4 and the wind shielding door 23 is increased in this time period, the gap is just used for discharging the air pressure inside the gap through the first water absorbing hole 231, the water absorbing cotton 7 is not in contact with the wind shielding door 23, the moisture in the water absorbing cotton 7 is not taken away during the air discharging, namely, the phenomenon that water drops in the air valve are sprayed out through the first water absorbing hole 231 is not generated when the air valve is closed, the upward displacement of the pressure applying plate 5 is equal to the compensation amount of the relative movement between the buffer sliding rod 62 and the buffer cylinder 61 along with, at the moment, the water absorption cotton body 7 is contacted with the wind shielding bin door 23 again, so that when the wind valve is opened again and negative pressure is formed between the wind shielding bin door 23 and the rubber sealing film 4 again, the water absorption cotton body 7 can immediately absorb the water entering the wind shielding bin body 2.

Keep out the wind on the door 23 of storehouse fixed mounting have a plurality of hemispheric catchments protruding 8, every catchment is protruding 8 and is gone up and has all been seted up the second hole 81 that absorbs water, second hole 81 and the first hole 231 one-to-one that absorbs water, and the protruding 8 that catchments is convenient for gather the opening part of second hole 81 that absorbs water with the condensate water on the door 23 of storehouse that keeps out the wind, is favorable to the cotton body 7 absorption that absorbs water to condense the water droplet on the door 23 of storehouse that keeps out the wind.

Pressure applying plate 5 is last to have seted up defeated pressure through-hole 51 for the atmospheric pressure between pressure applying plate 5 and the storehouse door 23 that keeps out the wind of releiving reduces pressure applying plate 5 to the influence of the atmospheric pressure between pressure applying plate 5 and the storehouse door 23 that keeps out the wind in the motion process, and steady voltage hole 21 has been seted up at the top of the storehouse body 2 that keeps out the wind, is favorable to releiving the atmospheric pressure change between the 2 tops of the rubber seal membrane 4 and the storehouse body that keeps out the wind.

The rubber sealing film 4 is fixedly provided with a rubber lifting plate 41, the rubber lifting plate 41 is of a hard plate structure, and when the pressing block 31 pushes the rubber sealing film 4 to move through the rubber lifting plate 41, the spatial deformation between the rubber sealing film 4 and the wind shielding bin door 23 can be promoted to be larger.

The side wall of the barrel body 1 is also fixedly communicated with a fixed sleeve 11, a driving sleeve 12 is rotatably sleeved in the fixed sleeve 11, one end of the driving sleeve 12 extends into the barrel body 1 and is fixed with the wind shielding bin body 2, and the other end of the driving sleeve 12 is fixedly connected with a driving turbine 13; the side wall of the cylinder body 1 is also fixedly connected with a fixing plate 9, a driving worm 10 is rotatably arranged on the fixing plate 9, the driving worm 10 is meshed with a driving turbine 13, and the opening and closing of the air valve can be controlled through the worm in the outside.

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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.