CN108266063B

CN108266063B - Air pressure control device and fire control smoke exhaust window system applied by same

Info

Publication number: CN108266063B
Application number: CN201611258624.9A
Authority: CN
Inventors: 袁仕达; 周铁永; 王荣华
Original assignee: Ningbo Oushi Intelligent Technology Co ltd
Current assignee: Ningbo Oushi Intelligent Technology Co ltd
Priority date: 2016-12-30
Filing date: 2016-12-30
Publication date: 2023-10-27
Anticipated expiration: 2036-12-30
Also published as: CN108266063A

Abstract

The utility model provides a fire control smoke window system that air control device and applied mainly through the control of air control device's change over valve switch realizes that the smoke window carries out window form locking or unblock's function to open or close again, simultaneously, under emergency, can ensure again that the release of window lock opens the smoke window, so, when meeting emergency, also can trigger holistic air control device through the remote operation from the safety department to force drive disaster prevention pneumatic means, in order to provide protection effect and effectively reduce the disaster loss.

Description

Air pressure control device and fire control smoke exhaust window system applied by same

Technical Field

The invention relates to the technical field of safety equipment, in particular to an air pressure control device which can be controlled by a general state switch or an emergency state switch and can respectively provide general air pressure and emergency air pressure to further drive an external disaster prevention pneumatic device and a fire control smoke exhaust window system applied by the air pressure control device.

Background

Humans use fire to provide heat energy to specific substances or articles to achieve a specific purpose. The fire can increase the temperature of the substance or article, and when the temperature of the substance changes to a certain extent, its properties change, for example, from a solid state to a liquid state. Cooking is the use of fire to change the characteristics of food. The food materials placed in the pot are not cooked, are not suitable for the human digestive system, and after the pot is heated by fire, the temperature of the food materials is changed and cooked, so that the food materials can be accepted by the human digestive system.

Although the fire energy brings convenience to human beings, if the fire energy is not well controlled, the fire is easy to happen if the combustion exceeds the expected combustion. Fire disasters can be divided into four main categories according to different combustion substances, and the fire disasters comprise common combustibles, combustible liquid, electrical equipment and active metals, wherein the common combustibles comprise wood products, paper fibers, cotton, cloth, synthetic resin, rubber, plastics and the like; combustible liquids such as petroleum, or combustible gases such as ethane gas, acetylene gas, or combustible greases such as paint, etc.; to electrical equipment in the process of energizing, such as electrical appliances, transformers, wires, distribution boards, etc.; active metals such as magnesium, potassium, lithium, zirconium, titanium, etc., or other water-inhibiting substances.

In the event of a fire, at least the following factors affect life safety. Firstly, the high temperature environment may dehydrate the human body, and further generate the problems of dizzy, asthma, dyspnea, etc. The flame burns to the human body, which can cause burns and scalds of the human body to affect the actions, and the burnt body directly causes harm to internal organs. In addition, smoke generated by combustion threatens life, particularly toxic gases released by the smoke can lose judgment, and the lung is destroyed by the gas with too high temperature inhaled by a human body, so that respiratory failure is caused, and the smoke is usually the main reason for taking away life.

Typically humans are free to move about at an oxygen concentration of 21% of atmospheric air, and when the oxygen concentration is as low as 17%, muscle function declines and some people experience dizziness. At 10-14% oxygen concentration, the person still has consciousness, but shows wrong judgment and is not aware of himself. At 6-8% oxygen concentration, breathing ceases and asphyxia will occur within 6-8 minutes. Although the oxygen concentration should be normal at 21% of the atmospheric level, the amount of fire-induced hyperactivity and activity increases the demand of the human body, so that in practice, the oxygen deficiency symptoms may still occur at an oxygen concentration of not less than 21%. The lower limit of oxygen concentration for normal human survival is 10%. The combustion conditions are different every time a fire occurs, and the combustion conditions are affected by the combustion substances as mentioned above, and the oxygen concentration is affected by the type of combustible material, the combustion speed, the volume of the combustion system and the ventilation rate, so that the decrease of the oxygen concentration is different according to the fire.

In addition to the above oxygen concentration affecting the human body, the gases generated by combustion may also be toxic to the human body. The thermal decomposition and combustion products of the general polymer materials are complex in types, more than hundred types, and a plurality of gas products have specific toxic effects on human physiology, and toxic components of the gases can be basically divided into three types: 1 choking or comatose component; 2 components having a stimulating effect on the sensory or respiratory organs; 3 other abnormal toxic components. From the statistics of fire death, it is known that most victims are fatal due to inhalation of harmful combustion gases such as carbon monoxide, but the fact is not so pure, since there is no single fire situation the same, and many fire tests show that the oxygen concentration has fallen to the minimum standard or the highest respiratory level temperature has been reached before any toxic gas has reached the lethal concentration in many situations.

In the event of a fire, an attempt may be made to extinguish the fire. The fire extinguishing emphasis is put on time effect, and the fire extinguishing emphasis can be put out immediately when a fire source is started, so that the fire can be quickly restrained from happening or spreading, and the nearby fire extinguisher and the water aiming of a fire hydrant box can be used for extinguishing fire, if the fire extinguishing appliance cannot be obtained in a short time, the cotton quilt, a curtain and the like can be used for wetting to extinguish fire. However, if the fire tends to spread, the fire should be evacuated rapidly to a safe place. In addition, when a fire disaster occurs, the police personnel should be notified rapidly, for example, a manual alarm on a fire hydrant box in a building is utilized, or a telephone is used, and meanwhile, people can also shout loudly, knock a door and wake up others to know the occurrence of the fire disaster, so that people can escape from the scene. When the fire alarm is connected with the fire-fighting personnel, the fire alarm is not in palpitation, and the address, the place, the building condition and the like of the fire alarm are required to be specified so as to be suitable for dispatching the fire-fighting vehicle to go to the disaster relief.

In addition to the existing fire-fighting equipment, smoke-removing fire-fighting equipment is becoming more important. As described above, when a fire occurs, a victim is dead by inhaling a high-temperature gas or a toxic gas, and therefore, when a fire occurs, the elimination of a high-temperature gas and a toxic gas becomes another important point for fire control. The exhaust equipment comprises at least two types of mechanical exhaust and natural convection exhaust, wherein the mechanical exhaust is to exhaust gas from the indoor to the outdoor by means of fans and other equipment, however, if the fans are just arranged at the place of a flame when a fire occurs, the fans are started at the moment to enable the fire to spread rapidly to the extent that the fire cannot be extinguished, so that the mechanical exhaust equipment is not needed for the equipment for exhausting the gas for fire protection. The natural convection removing device is a channel for connecting the indoor and the outdoor, and when a fire disaster occurs, the natural convection removing device is started to generate natural convection indoors and outdoors, so that the function of removing gas is achieved, and the harm of the fire disaster to human bodies is slowed down.

The best choice for natural convection removal equipment is typically windows. When a fire disaster occurs, the window is opened, so that natural convection is generated indoors and outdoors. However, when a fire disaster occurs, the time is quite urgent, and under the condition that the time is necessary for the minute and the second, people are difficult to withdraw the time to open the windows one by one, especially in large buildings such as exhibition halls or factories, the setting positions of the windows are often not reached by the people, and the windows are further opened, so that when the fire disaster occurs, how to automatically open the windows in time becomes an important research direction of fire fighting equipment.

Valve members are a very common mechanism element used to automatically open windows. The valve member is generally referred to as a mechanical element for regulating, directing and controlling the flow of fluid to and from the valve member, and may be opened or closed in a variety of different ways, including by manpower, gas propulsion, electrical power, and mechanical design. The valve can be opened or closed to control the flow direction, and the size of the opening is adjusted to adjust the flow. The valve can have various different aspects according to the application range, and the window capable of being automatically opened has specific requirements according to the places and the configuration, and the valve is designed into the most suitable aspect according to the specific requirements, so that the automatic opening function is optimized, and the problems that the window cannot be opened due to faults in emergency and the like, so that smoke emission is unsmooth and the fire safety is influenced are avoided.

In addition, it should be noted that in the modern technology, fire protection devices such as fire protection or smoke exhaust windows are usually installed inside a house, and emergency opening is performed when necessary by opening and closing valve elements, so as to reduce casualties and damages caused by fire, however, it has been found from the past experience that when a fire occurs, in a general operation mode, air pressure sources such as fire protection devices such as fire protection or smoke exhaust windows may not normally supply air due to the occurrence of a disaster, and thus the fire protection devices may not exert their functions, so that how to develop a fire protection device control box capable of providing emergency air sources in emergency situations is an unprecedented issue in the present fire protection technology.

Disclosure of Invention

The invention aims to solve the technical problems of providing an air pressure control device and a fire-fighting smoke discharging window system applied by the air pressure control device, wherein the air pressure control device mainly realizes the function of locking or unlocking a smoke discharging window through the control of a switching valve switch of the air pressure control device, and then opens or closes the window, and simultaneously, under an emergency state, the release of the window lock and the opening of the smoke discharging window can be ensured, so that when an emergency situation is met, the integral air pressure control device can be triggered through remote operation from a safety place, and disaster prevention pneumatic equipment is forcedly driven, thereby providing a protection effect and effectively reducing disaster loss.

In order to achieve the above object, the present invention provides an air pressure control device, comprising:

the air path switching module is provided with an air source input port, a first air pressure output port, a second air pressure output port and a third air pressure output port, and in addition, the air path switching module further comprises:

the air channel switching shaft is arranged in a switching shaft accommodating cavity of the air channel switching module and can slide, and the switching shaft accommodating cavity is communicated among the first air pressure output port, the second air pressure output port and the air source input port;

the first switching valve switch is arranged on the gas path switching module and is provided with at least one exhaust valve and a first switching valve, wherein the first switching valve is communicated between the gas source input port and the first and second gas pressure output ports; and

the second switching valve switch is arranged on the gas path switching module and is provided with at least one exhaust valve and a second switching valve, wherein the second switching valve is communicated between the gas source input port and the third gas pressure output port;

The first switching valve is controlled to switch, so that the air pressure input by the air source input port is communicated to the first air pressure output port or the second air pressure output port through the first switching valve, the switching shaft accommodating cavity and the notch of the air path switching shaft for output; meanwhile, the backflow air pressure input by the other air pressure output port (the second air pressure output port or the first air pressure output port) is communicated to the exhaust valve of the first switching valve switch through the air path switching shaft, the switching shaft accommodating cavity and the first switching valve;

the second switching valve is controlled to switch, so that the air source input port is communicated or not communicated with the third air pressure output port, and when the air source input port is not communicated with the third air pressure output port, the backflow air pressure input by the third air pressure output port is communicated to the exhaust valve of the second switching valve switch through the second switching valve.

As described above, preferably, in the air pressure control device, the air path switching module further includes: and the emergency air channel is formed in the air channel switching module, wherein one end of the air channel switching shaft is blocked between the switching shaft accommodating cavity and the emergency air channel.

As described above, preferably, the air circuit switching module further includes an emergency air circuit switching element and is disposed on an air circuit switching element main body of the air circuit switching module, where the emergency air circuit switching element includes:

the second air pressure output port is arranged on the emergency air path switching element main body;

the emergency gas circuit switching block is arranged in the switching block accommodating cavity in the emergency gas circuit switching element main body in a sliding manner, and the switching block accommodating cavity is communicated with the second gas pressure output port; and

the second emergency air passage is formed in the emergency air passage switching element body, two ends of the second emergency air passage are respectively connected with the switching block accommodating cavity and the emergency air passage, and the emergency air passage switching block is blocked between the switching block accommodating cavity and the second emergency air passage.

In the air pressure control device as described above, preferably, the second emergency air path channel is communicated with the first emergency air source output through hole of the air path switching element body through a second emergency air source output through hole of the emergency air path switching element body.

In the air pressure control device as described above, preferably, the emergency air path switching block is formed with a switching block recess, wherein the switching shaft accommodating cavity is communicated with the switching block accommodating cavity through an air source first through hole of the air path switching element main body and an air source second through hole of the emergency air path switching element main body, and the switching shaft accommodating cavity is also communicated with the second air pressure output port through the switching block recess.

In the above air pressure control device, preferably, the emergency air path switching element further includes a return spring, and two ends of the return spring are respectively connected to the emergency air path switching element main body and the emergency air path switching block.

In the air pressure control device as described above, preferably, the air path switching shaft is formed with a first switching shaft recess and a second switching shaft recess, and the first switching shaft recess corresponds to the first air pressure output port, where the air source input port is communicated with the first air pressure output port through the switching shaft accommodating cavity and the first switching shaft recess; in addition, the second switching shaft concave part corresponds to the air source first through hole, wherein the air source input port is communicated with the air source first through hole through the switching shaft accommodating cavity and the second switching shaft concave part.

In the air pressure control device, preferably, the air path switching element main body further includes a return spring, and two ends of the return spring are respectively connected to the air path switching element main body and the other end of the air path switching shaft.

The air pressure control device as described above preferably further includes:

at least one air bottle puncturing device which is arranged and connected with the emergency air channel in an air way and is provided with a puncturing device switch, a switching device second communication air port and a puncturing pipe; and

at least one high-pressure gas cylinder arranged on the gas cylinder puncturing device and provided with an opening, wherein the opening is covered with a high-pressure sealing film, and the puncturing pipe corresponds to the opening;

the puncture device is triggered to open and close to drive the puncture tube to puncture the high-pressure sealing film of the high-pressure gas cylinder, so that the gas pressure in the high-pressure gas cylinder enters the emergency gas channel and the second emergency gas channel through the puncture tube and the second communication gas port of the switching device, and the gas channel switching shaft and the emergency gas channel switching block are pushed to switch the gas channels;

when the emergency air channel switching block is pushed, the emergency air channel is communicated with the second air pressure output port through the second emergency air channel and the switching block accommodating cavity.

As described above, in the air pressure control device, preferably, the air path switching shaft further includes:

the switching shaft gas path channel is formed in the gas path switching shaft;

the first emergency air passage concave is provided with a first emergency air passage concave through hole, and the first emergency air passage concave through hole is communicated with the switching shaft air passage;

the second emergency air passage concave is provided with a second emergency air passage concave through hole, and the second emergency air passage concave through hole is communicated with the switching shaft air passage;

when the air passage switching shaft is pushed, the first emergency air passage concave part corresponds to the first air pressure output port, and the second emergency air passage concave part corresponds to a connecting hole on the air passage switching element main body;

the connecting hole is connected with an exhaust valve connecting hole on the emergency gas circuit switching element main body, and the exhaust valve connecting hole is communicated with an exhaust valve on the emergency gas circuit switching element main body;

when the air passage switching shaft is pushed, the first air pressure output port is communicated with an exhaust valve on the emergency air passage switching element main body through the first emergency air passage concave part, the switching shaft air passage and the second emergency air passage concave part.

In the air pressure control device as described above, preferably, the air path switching shaft and the emergency air path switching block are provided with a plurality of airtight rings.

In the above air pressure control device, preferably, the air bottle puncture device includes a main body, and the main body is provided with an air passage connecting cavity and a second communication air port of the switching device, where the second communication air port of the switching device is communicated with the air passage connecting cavity, and the puncture tube is disposed and can slide on the main body.

As described above, in the air pressure control device, preferably, the puncture device switch has a handle portion and a puncture tube pushing portion, and the puncture tube pushing portion is disposed in the air path connection cavity and contacts and is linked with the other end of the puncture tube, wherein, the operation of the handle portion can make the puncture tube pushing portion push the end of the puncture tube, so that the puncture tube pierces the high-pressure air bottle, and then the gas inside the high-pressure air bottle is led into the air path connection cavity through the puncture tube.

In the above air pressure control device, preferably, the number of the gas cylinder piercing devices and the number of the high-pressure gas cylinders are two, and two ends of a linkage rod are respectively connected to the piercing device switches of the two gas cylinder piercing devices.

In the air pressure control device as described above, preferably, the first switching valve switch switches the first switching valve by a first electric control switch.

In the air pressure control device as described above, preferably, the second switching valve switch switches the second switching valve by a second electric control switch.

As described above, preferably, the air circuit switching module further includes a first air circuit connecting block and is connected to the air circuit switching element main body, where the air source input port and the first switching valve switch are disposed on the first air circuit connecting block, and the first air circuit connecting block includes: and the first switching valve switch is in gas circuit communication with the input gas source channel through a through hole.

As described above, in the air pressure control device, preferably, the air path switching element body is formed with a first air through hole and a second air through hole respectively and is communicated with the switching shaft accommodating cavity, where the first air through hole corresponds to the first switching shaft concave portion of the air path switching shaft and is communicated with the first switching valve switch through a first air channel on the first air path connecting block; in addition, the second air through hole corresponds to the second switching shaft concave part of the air path switching shaft and is communicated with the first switching valve switch through a second air channel on the first air path connecting block.

In the air pressure control device as described above, preferably, the air path switching element body is formed with a third air pressure output connection through hole and an emergency air path connection through hole respectively thereon, and the third air pressure output connection through hole is communicated with the third air pressure output port, and the emergency air path connection through hole is communicated with the emergency air path channel.

In the air pressure control device, preferably, the air channel switching module further includes a second air channel connecting block and is connected to the first air channel connecting block, wherein a third air pressure output air channel is formed in the second air channel connecting block, and the third air pressure output air channel is respectively communicated with the third air pressure output connecting through hole and the emergency air channel connecting through hole through a first air channel connecting channel and a second air channel connecting channel on the first air channel connecting block.

In the air pressure control device as described above, preferably, the third air pressure output air channel is communicated with the second switching valve switch through a second switching valve switch connecting hole, and an air channel blocking sphere is disposed and can roll in the third air pressure output air channel, wherein when air pressure is input through the air source input port, the air channel blocking sphere is pushed by air pressure and blocks between the first air channel connecting channel and the second air channel connecting channel; in addition, when the air pressure is input through the emergency air passage, the air passage blocking ball is pushed by the air pressure and blocks the space between the first air passage connecting passage and the second switching valve switch connecting hole.

In the air pressure control device as described above, preferably, the input air source channel is connected to the second switching valve switch through an air opening on the first air path connecting block and an input air channel on the second air path connecting block.

The air pressure control device as described above preferably further comprises an air filter element connected to the air supply inlet.

In addition, the invention also provides a fire-fighting smoke exhaust window system, which comprises the air pressure control device, and the fire-fighting smoke exhaust window system further comprises:

the air source output device is connected with the air source input port;

the control unit is used for controlling the first switching valve switch, the second switching valve switch and the air source output device; and

at least one exhaust window opening or closing by at least one window cylinder;

the first air pressure output port and the second air pressure output port are connected to the window air cylinder, and when the second air pressure output port outputs air to the window air cylinder, the window air cylinder opens the smoke exhaust window and discharges air through the first air pressure output port; when the first air pressure output port outputs air to the window air cylinder, the window air cylinder closes the smoke exhaust window and discharges air through the second air pressure output port;

The smoke exhaust window body is provided with a window lock and is controlled to be locked or unlocked by a window lock cylinder, and the window lock cylinder is connected with the third air pressure output port.

In the fire-fighting smoke exhaust window system as described above, preferably, the window-locking cylinder is provided with a recovery spring, and when the third air pressure outlet port inputs air to the window-locking cylinder, the window-locking cylinder unlocks the smoke exhaust window, and when the third air pressure outlet port stops supplying air, the window-locking cylinder locks the smoke exhaust window by means of the recovery spring.

Compared with the prior art, the invention has the beneficial effects that the function of locking or unlocking the window body of the smoke exhaust window can be realized by means of the control of the switch of the switching valve, and the window body is opened or closed again, and simultaneously, the release of the window lock and the opening of the smoke exhaust window can be ensured in an emergency state, so that when an emergency situation is met, the integral air pressure control device can be triggered from a safety place through remote operation, and disaster prevention pneumatic equipment is forcedly driven, thereby providing a protection effect and effectively reducing disaster loss.

The invention will now be described in more detail with reference to the drawings and specific examples, which are not intended to limit the invention thereto.

Drawings

FIG. 1 is a block diagram of a fire smoke evacuation window system according to the present invention;

FIG. 2 is a perspective view of an air pressure control device according to the present invention;

FIG. 3 is an exploded view of the air pressure control device;

FIG. 4 is a first partially exploded view of the air pressure control device;

FIG. 5 is an exploded view of the air circuit switching module of the air pressure control device;

fig. 6a to 6b are perspective and sectional views of an emergency gas circuit switching element according to the present invention;

fig. 7a to 7c are a perspective view, an exploded view and a cross-sectional view of a gas circuit switching element according to the present invention;

FIG. 8 is a second partially exploded view of the air pressure control device;

FIG. 9 is a partial perspective explanatory view of the air pressure control device;

FIG. 10 is a perspective illustration of a second air circuit connection block of the present invention;

FIG. 11 is a perspective view illustrating a switch of a switching valve according to the present invention;

fig. 12a to 12b are schematic perspective views illustrating the operation of the gas cylinder puncturing device and the high-pressure gas cylinder according to the present invention;

FIG. 13 is an exploded view of the cylinder lancing device and the high pressure cylinder;

fig. 14a to 14b are schematic cross-sectional views illustrating the operation of the gas cylinder puncturing device and the high pressure gas cylinder;

FIG. 15 is a perspective view of the lancing device switch and emergency air supply according to the present invention;

FIG. 16 is an equivalent explanatory diagram of the air path structure in the initial state of the present invention;

FIGS. 17a to 17c are cross-sectional explanatory views of equivalent air path structures in the normal air source windowing state of the present invention;

FIGS. 18a to 18c are cross-sectional views illustrating the equivalent air path structure of the present invention in the normal air source window closing state; and

fig. 19a and 19b are a cross-sectional explanatory view and a partially enlarged view of an equivalent air path structure in an emergency air source windowing state according to the present invention.

Wherein reference numerals are used to refer to

[ the invention ]

W-shaped smoke exhausting window

PW window cylinder

PL window lock cylinder

CO control unit

A air source output device

C air pressure control device

E emergency air source

SP first switching valve switch

SL second switching valve switch

SE puncturing device switch

S1 first switch switching valve

S2 first electric control switch

E1 Exhaust valve

E2 Exhaust valve

S1' second switch switching valve

S2' second electric control switch

SE0 linkage rod

AO1 first air pressure output port

AO2 second air pressure output port

AO3 third air pressure output port

AI air source input port

1. Gas circuit switching module

11. Gas circuit switching element main body

110. First through hole of air source

111. Gas circuit switching shaft

112. The air source outputs a first through hole

113. Connecting hole

114. Switching shaft accommodating cavity

115. Emergency gas path channel

116. Emergency gas circuit connecting through hole

117. Third air pressure output connecting through hole

118. First air through hole

119. Second air through hole

1110. Reset spring

1111. First switching shaft recess

1112. Second switching shaft recess

1113. Second emergency air path concave part

1114. First emergency air path concave part

1115. Switching shaft gas path channel

11131. Second emergency air path concave part through hole

11141. First emergency air path concave part through hole

12. First air passage connecting block

120. Input air source channel

121. First air passage

122. Through hole

123. Second air passage

124. Air hole

125. First air passage connecting channel

126. Two gas circuit connecting channels

13. Second gas circuit connecting block

131. Input gas channel

132. Second switching valve switch connecting hole

133. Third air pressure output air channel

134. Gas path blocking sphere

2. Emergency gas circuit switching element

21. Emergency gas circuit switching element main body

22. Second emergency air channel

23. Emergency gas circuit switching block

24. Reset spring

25. Switching block accommodating cavity

211. Air source second through hole

212. Emergency air source output second through hole

213. Exhaust valve connecting hole

231. Switching block recess

3. Gas filter element

4. Gas cylinder puncturing device

411. Clamping groove

412. Handle portion

413. Puncture tube pushing part

414. Airtight ring

415. Linkage pin jack

42. The second communication air port of the switching device

43. Puncture tube

44. Main body

441. Air passage connecting cavity

442. Elastic bolt

443. Gas cylinder fixing part

444. Positioning hole

5. High-pressure gas cylinder

51. An opening

511. High-pressure sealing film

512. Airtight ring

Detailed Description

The structural and operational principles of the present invention are described in detail below with reference to the accompanying drawings:

for the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. Elements and features described in one drawing or embodiment of the invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that the illustration and description of components and processes known to those skilled in the art, which are not relevant to the present invention, have been omitted in the drawings and description for the sake of clarity. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention.

In order to more clearly describe an air pressure control device according to the present invention, a preferred embodiment of the present invention will be described in detail below with reference to the drawings.

Referring to fig. 1, a schematic diagram of a fire-fighting smoke-exhausting window system according to the present invention is shown; as shown in the figure, the fire-fighting smoke window system provided by the invention mainly comprises an air source output device a, a control unit CO, a smoke exhaust window W and an air pressure control device C, wherein the air source output device a can provide operation air pressure for the smoke exhaust window W through the air pressure control device C, and meanwhile, the air pressure control device C can be operated by the control unit CO to control the air pressure to be input into a window cylinder PW and a window lock cylinder PL of the smoke exhaust window W in different modes, and the smoke exhaust window W is opened or closed, unlocked or locked.

In addition, the air pressure control device C is further provided with an emergency air source E, so that when an emergency occurs, a user can provide emergency air pressure to the window cylinder PW and the window lock cylinder PL of the smoke exhaust window W by triggering the emergency air source E, and then unlock and open the smoke exhaust window in an emergency manner, thereby achieving the effect of fire-fighting smoke exhaust.

Please refer to fig. 1, and refer to fig. 2 and fig. 3 simultaneously, which are a perspective view and an exploded view of an air pressure control device according to the present invention; as shown in the figure, the air pressure control device C provided by the present invention mainly includes: an air passage switching module 1, an emergency air passage switching element 2, a first switching valve switch SP, a second switching valve switch SL, an air filtering element 3, two air bottle puncturing devices 4, two high-pressure air bottles 5 and a puncturing device switch SE.

With reference to fig. 1, 2 and 3, and with reference to fig. 4, 5, 6a to 6b, 7a to 7c, 8, 9, 10 and 11, respectively, a first partially exploded view of the air control device, an exploded view of the air switching module of the air control device, a perspective view and a cross-sectional view of the emergency air switching element, a main body perspective view of the air switching element, an exploded view and a cross-sectional view, a second partially exploded view of the air control device, a partially perspective explanatory view of the air control device, a second partially perspective explanatory view of the air connection block of the invention, and a three-dimensional explanatory view of the switching valve switch of the invention.

As shown in the drawing, in the present disclosure, the air path switching module 1 is mainly composed of the emergency air path switching element 2, an air path switching element body 11, a first air path connecting block 12 and a second air path connecting block 13, in addition, the air path switching module 1 has an air source input port AI, a first air pressure output port AO1, a second air pressure output port AO2, a third air pressure output port AO3 and an air path switching shaft 111, wherein the air path switching shaft 111 is disposed and can slide in a switching shaft accommodating cavity 114 of the air path switching module 1, the switching shaft accommodating cavity 114 is communicated between the first air pressure output port AO1, the second air pressure output port AO2 and the air source input port AI, and the air filtering element 3 is connected to the air source input port AI.

Further, the first switching valve switch SP is disposed on the air path switching module 1, and the first switching valve switch SP has at least one exhaust valve E2 and a first switching valve S1, where the first switching valve S1 is communicated between the air source input AI and the first and second air pressure output AO1, AO 2; in addition, the second switching valve switch SL is disposed on the air path switching module 1, and the second switching valve switch SL has at least one exhaust valve E2 and a second switching valve S1', where the second switching valve S1' is connected between the air source input AI and the third air pressure output AO 3.

It should be noted that, in the present invention, the first switch SP is controlled to switch the first switch S1, so that the air pressure input from the air source input AI is communicated to the first air pressure output AO1 or the second air pressure output AO2 through the first switch S1, the switch shaft accommodating cavity 114 and the notch of the air path switch shaft 111 for outputting; meanwhile, the return air pressure input from the other air pressure output port (the second air pressure output port AO2 or the first air pressure output port AO 1) is communicated to the exhaust valve E2 of the first switching valve switch SP through the air path switching shaft 111, the switching shaft accommodating chamber 114 and the first switching valve S1.

In this way, the second switching valve switch SL is controlled to switch the second switching valve S1', so that the air source input port AI is connected or disconnected from the third air pressure output port AO3, and when the air source input port AI is disconnected from the third air pressure output port AO3, the return air pressure input by the third air pressure output port AO3 is connected to the exhaust valve E2 of the second switching valve switch SL through the second switching valve S1'.

In more detail, as shown in fig. 5 and fig. 6a to fig. 6b, the air path switching module 1 further includes an emergency air path channel 115 formed in the air path switching module 1, wherein one end of the air path switching shaft 111 is blocked between the switching shaft accommodating cavity 114 and the emergency air path channel 115, the emergency air path switching element 2 is disposed on the air path switching element body 11, and the second air pressure output port AO2 is disposed on the emergency air path switching element body 21.

In addition, the emergency gas circuit switching element 2 further comprises: an emergency air channel switching block 23, a second emergency air channel 22 and a return spring 24, wherein the emergency air channel switching block 23 is arranged and can slide in a switching block accommodating cavity 25 in the emergency air channel switching element main body 21, and in addition, two ends of the return spring 24 are respectively connected with the emergency air channel switching element main body 21 and the emergency air channel switching block 23; in this embodiment, a plurality of airtight rings are disposed on the air path switching shaft 111 and the emergency air path switching block 23.

The switching block accommodating cavity 25 is communicated with the second air pressure output port AO2; in addition, the second emergency air channel 22 is formed in the emergency air channel switching element main body 21, two ends of the second emergency air channel 22 are respectively connected to the switching block accommodating cavity 25 and the emergency air channel 115, and the emergency air channel switching block 23 is blocked between the switching block accommodating cavity 25 and the second emergency air channel 22.

The second emergency air passage 22 is communicated with the first emergency air output through hole 112 of the air passage switching element body 11 through the second emergency air output through hole 212 of the emergency air passage switching element body 21. The emergency gas circuit switching block 23 is formed with a switching block recess 231, and the switching shaft accommodating chamber 114 is communicated with the switching block accommodating chamber 25 through a gas source first through hole 110 of the gas circuit switching element body 11 and a gas source second through hole 211 of the emergency gas circuit switching element body 21, and in addition, the switching shaft accommodating chamber 114 is communicated with the second gas pressure output port AO2 through the switching block recess 231.

As shown in fig. 7a to 7c, 8, 9, 10 and 11, the air path switching shaft 111 is formed with a first switching shaft recess 1111 and a second switching shaft recess 1112, and the first switching shaft recess 1111 corresponds to the first air pressure output AO1, wherein the air source input AI is communicated with the first air pressure output AO1 through the switching shaft accommodating cavity 114 and the first switching shaft recess 1111; further, the second switching shaft concave portion 1112 corresponds to the air source first through hole 110, wherein the air source input port AI communicates with the air source first through hole 110 through the switching shaft accommodation chamber 114 and the second switching shaft concave portion 1112.

In addition, the air path switching element body 11 further includes a return spring 1110, and two ends of the return spring are respectively connected to the air path switching element body 11 and the other end of the air path switching shaft 111.

With continued reference to fig. 1-11, and with simultaneous reference to fig. 12 a-12 b, 13, 14 a-14 b, and 15, there are respectively a schematic perspective view of the actuation of the gas cylinder puncturing device and the high-pressure gas cylinder, an exploded view of the gas cylinder puncturing device and the high-pressure gas cylinder, a schematic sectional view of the actuation of the gas cylinder puncturing device and the high-pressure gas cylinder, and a schematic illustration of the opening and closing of the puncturing device and the emergency gas source; as shown, each gas bottle piercing device 4 is installed and connected to the emergency gas path channel 115, and has a piercing device switch SE, a switching device second communication port 42 and a piercing tube 43; in addition, each high-pressure gas cylinder 5 is installed in the gas cylinder piercing device 4, and has an opening 51, and the opening 51 is covered with a high-pressure sealing film 511, where the piercing tube 43 corresponds to the opening 51.

Wherein, the puncture tube 43 is driven to puncture the high pressure sealing film 511 of the high pressure gas cylinder 5 by triggering the puncture device switch SE, so that the gas pressure in the high pressure gas cylinder 5 enters the emergency gas channel 115 and the second emergency gas channel 22 through the puncture tube 43 and the second communication port 42 of the switching device, and pushes the gas channel switching shaft 111 and the emergency gas channel switching block 23 to switch the gas channels; in addition, when the emergency air path switching block 23 is pushed, the emergency air path 115 is communicated with the second air pressure output port AO2 through the second emergency air path 22 and the switching block accommodating chamber 25.

The air path switching shaft 111 as described in fig. 7a to 7c is further formed with: the switching shaft air channel 1115, a first emergency air channel recess 1114 and a second emergency air channel recess 1113, wherein the switching shaft air channel 1115 is formed in the air channel switching shaft 111, the first emergency air channel recess 1114 is formed with a first emergency air channel recess through hole 11141, the first emergency air channel recess through hole 11141 is communicated with the switching shaft air channel 1115, in addition, the second emergency air channel recess 1113 is formed with a second emergency air channel recess through hole 11131, and the second emergency air channel recess through hole 11131 is communicated with the switching shaft air channel 1115.

As mentioned above, when the air path switching shaft 111 is pushed, the first emergency air path recess 1114 corresponds to the first air pressure output port AO1, and the second emergency air path recess 1113 corresponds to a connection hole 113 on the air path switching element body 11; the connection hole 113 is connected to an exhaust valve connection hole 213 on the emergency gas circuit switching element body 21, and the exhaust valve connection hole 213 is communicated with an exhaust valve E1 on the emergency gas circuit switching element body 21; in addition, when the air passage switching shaft 111 is pushed, the first air pressure output port AO1 is communicated with an exhaust valve E1 on the emergency air passage switching element body 21 through the first emergency air passage recess 1114, the switching shaft air passage 1115, and the second emergency air passage recess 1113.

As shown in fig. 12a to 12b, 13 and 14a to 14b, each gas cylinder puncturing device 4 includes a main body 44, and the main body 44 is provided with a gas path connecting cavity 441 and the switching device second communicating port 42, wherein the switching device second communicating port 42 is communicated with the gas path connecting cavity 441, and the puncturing tube 43 is disposed and can slide on the main body 44. Further, the lancing device switch SE has a handle portion 412 and a lancing tube pushing portion 413, and the lancing tube pushing portion 413 is disposed in the gas path connecting cavity 441 and contacts and is linked with the other end of the lancing tube 43, wherein, operating the handle portion 412 can make the lancing tube pushing portion 413 push the end of the lancing tube 43, so that the lancing tube 43 pierces the high pressure gas bottle 5, and then the gas inside the high pressure gas bottle 5 is led into the gas path connecting cavity 441 through the lancing tube 43.

It should be noted that, in the present embodiment, the cross section of the puncture tube pushing portion 413 is in a reversed U-shaped design, wherein the puncture tube pushing portion 413 contacts and pushes the puncture tube 43 by the reversed U-shaped edge, and the puncture tube 43 is further communicated with the air channel connecting cavity 441 by the reversed U-shaped edge notch. And, two airtight rings 414 are respectively disposed at two sides of the n-shape of the puncture tube pushing portion 413, so that the combination of the gas path connection cavity 441 and the puncture tube pushing portion 413 is completely sealed by the airtight rings 414. In this way, after the handle portion 412 is pushed, the puncture tube pushing portion 413 is driven to rotate, so that the puncture tube 43 is displaced and punctures the high-pressure gas cylinder 5, and the high-pressure gas inside the high-pressure gas cylinder 5 enters the gas path connecting cavity 441 through the puncture tube 43 and is pneumatically output from the switching device second communication port 42.

In addition, the handle 412 has a slot 411, and when the puncture tube pushing part 413 pushes the puncture tube 43 to puncture the high pressure gas cylinder 5, an elastic latch 442 of the main body 44 is ejected and snapped into the slot 411; in view of the above, when the user operates the gas cylinder puncturing device to drive the fire-fighting equipment such as the external smoke exhaust window by the gas cylinder air pressure, the puncturing tube 43 can be ensured to puncture and insert into the high pressure gas cylinder 5 effectively by the design of the clamping slot 411 and the elastic bolt 442, and the puncturing device switch SE and the gas cylinder puncturing device 4 can be further prevented from moving due to the external force factor and affecting the air supply condition of the high pressure gas cylinder 5.

The high-pressure gas cylinder 5 is a high-pressure gas cylinder, compressed gas filled in the high-pressure gas cylinder is carbon dioxide or nitrogen, and the high-pressure gas is provided by the high-pressure gas cylinder after puncture so as to reach specific air pressure, thereby forcedly driving fire-fighting equipment such as a smoke exhaust window and the like; further, the main body 44 is further formed with a gas cylinder fixing portion 443, and the opening 51 of the high pressure gas cylinder 5 is connected to and fixed on the gas cylinder fixing portion 443, wherein a plurality of airtight rings 512 are installed at the connection between the gas cylinder fixing portion 443 and the opening 51. In addition, the main body 44 is further formed with a plurality of positioning holes 444, and the positioning holes 444 are adjacent to the second communication port 42 of the switching device, wherein the gas cylinder puncturing device 4 and the second communication port 42 of the switching device can be tightly disposed on the gas circuit switching element 2 through the positioning holes 444.

In addition, two ends of a linkage rod SE0 are respectively connected to the puncturing device switches SE of the two gas cylinder puncturing devices 4, wherein, by virtue of the design of the linkage rod SE0, a user can trigger the two puncturing device switches SE simultaneously through the linkage rod SE0 at one time in an emergency.

As shown in fig. 11, the first switch SP switches the first switch S1 through a first electric control switch S2, and the second switch SL switches the second switch S1 'through a second electric control switch S2', and the specific configuration of the first switch SP in this embodiment is the same as that of the second switch SL.

As shown in fig. 7a to 7c, 8, 9 and 10, the first air connection block 12 is connected to the air circuit switching element main body 11, wherein the air supply input AI and the first switching valve SP are disposed on the first air connection block 12, and the first air connection block 12 includes: an input air source channel 120 is formed in the first air passage connection block 12, wherein the first switching valve switch SP is in air passage communication with the input air source channel 120 through a through hole 122.

Further, the air path switching element body 11 is respectively formed with a first air through hole 118 and a second air through hole 119 and is communicated with the switching shaft accommodating cavity 114, wherein the first air through hole 118 corresponds to the first switching shaft concave portion 1111 of the air path switching shaft 111 and is communicated with the first switching valve switch SP through a first air passage 121 on the first air path connecting block 12; in addition, the second air hole 119 corresponds to the second switching shaft recess 1112 of the air path switching shaft 111 and communicates with the first switching valve switch SP through a second air passage 123 on the first air path connecting block 12.

As described above, the air path switching element body 11 is respectively formed with a third air pressure output connection through hole 117 and an emergency air path connection through hole 116 thereon, and the third air pressure output connection through hole 117 is communicated with the third air pressure output port AO3, and the emergency air path connection through hole 116 is communicated with the emergency air path channel 115.

The second air connection block 13 is connected to the first air connection block 12, wherein a third air pressure output air channel 133 is formed in the second air connection block 13, and the third air pressure output air channel 133 is respectively connected to the third air pressure output connection through hole 117 and the emergency air connection through hole 116 through a first air connection channel 125 and a second air connection channel 126 on the first air connection block 12.

The third air pressure output air channel 133 is communicated with the second switching valve switch SL through a second switching valve switch connecting hole 132; and, an air path blocking sphere 134 is disposed and can roll in the third air pressure output air channel 133, wherein, when air pressure is input through the air source input port AI, the air path blocking sphere 134 will be pushed by air pressure and block between the first air path connecting channel 125 and the second air path connecting channel 126; in addition, when air pressure is inputted through the emergency air passage 115, the air passage blocking ball 134 is pushed by the air pressure and blocks the space between the first air passage connection passage 125 and the second switching valve switch connection hole 132. The input gas source channel 120 is connected to the second switching valve switch SL through a gas hole 124 on the first gas path connection block 12 and an input gas channel 131 on the second gas path connection block 13.

Referring again to fig. 1 to 15, and also referring to fig. 16, 17a to 17c, 18a to 18c, and 19a to 19b, the air path structure equivalent explanatory diagrams in the initial state (window lock closed and locking smoke exhaust window to maintain in the closed state), the air path structure equivalent sectional explanatory diagrams in the normal air path open state (fig. 17a is normal air path open state 1, window lock open; fig. 17b is normal air path open state 2, air path pushes air cylinder to open smoke exhaust window; fig. 17c is normal air path open state 3, smoke exhaust window continuously open window lock returns to the initial state), the air path structure equivalent sectional explanatory diagrams in the normal air path open state (fig. 18a is normal air path open window state 1, window lock open; fig. 18b is normal air path open window state 2, air path pushes air exhaust window closed; fig. 18c is normal air path open window state 3, window lock resumes the closed state and locks smoke exhaust window), and the air path equivalent sectional diagrams in the emergency open and emergency open window state (fig. 19a is an enlarged air path open and emergency air path open window) in the emergency open and close state (fig. 19a and 19 b) respectively.

As shown in the figure, in the present invention, the air source output device a is connected to the air source input AI, the control unit C0 is used for controlling the first switch valve SP, the second switch valve SL and the air source output device a, and the smoke exhaust window W is opened or closed and locked or unlocked by the window cylinder PW and the window lock cylinder.

The first air pressure output port AO1 and the second air pressure output port AO2 are connected to the window air cylinder PW, and when the second air pressure output port AO2 outputs air to the window air cylinder PW, the window air cylinder PW opens the smoke exhaust window W and discharges air through the first air pressure output port AO 1; when the first air pressure output port AO1 outputs air to the window cylinder PW, the window cylinder PW closes the exhaust window W and discharges air through the second air pressure output port AO 2.

Wherein, the smoke exhaust window W is provided with a window lock and is controlled to be locked or unlocked by a window lock cylinder PL, and the window lock cylinder PL is connected with the third air pressure output port AO3; the window lock cylinder PL is provided with a recovery spring, and when the third air pressure outlet AO3 inputs air to the window lock cylinder PL, the window lock cylinder PL unlocks the smoke exhaust window W, and when the third air pressure outlet AO3 stops supplying air, the window lock cylinder PL locks the smoke exhaust window W by means of the recovery spring.

As shown in fig. 16, when the smoke exhaust window system is in the initial state, the smoke exhaust window W is normally closed and locked, and the closed smoke exhaust window W is prevented from being opened by the window lock under the influence of external force.

As shown in fig. 17a to 17c, when the smoke exhaust window system performs the normal air source windowing operation, first, the system will control the second switching valve switch SL to switch, so that the input air pressure provided by the air source output device a may be air-path connected to the third air pressure output port AO3 and push the window locking cylinder PL, so as to unlock the smoke exhaust window W.

After the smoke exhaust window is unlocked, the system controls the first switching valve switch SP to switch, so that the input air pressure provided by the air source output device A can be communicated with the second air pressure output port AO2 in an air way and push the window cylinder PW to open the smoke exhaust window W, wherein the pressure release end of the window cylinder PW is communicated with the exhaust valve E2 of the first switching valve switch SP through the first air pressure output port AO1 to release pressure, so that the window cylinder PW can operate smoothly.

In this way, after the smoke window is successfully opened, the system switches the second switching valve switch SL again, so that the air pressure input by the air source output device a is not communicated with the window lock cylinder PL any more, and at this time, the window lock cylinder PL recovers the window lock of the smoke window W to the initial position due to the recovery spring thereof, and the normal air source window opening action of the smoke window system of the present invention is completed.

On the other hand, as shown in fig. 18a to 18c, when the smoke exhaust window system performs the window closing action of the normal air source, first, the system will control the second switching valve switch SL to switch, so that the input air pressure provided by the air source output device a may be air-connected to the third air pressure output port AO3 and push the window lock cylinder PL, and further the window lock is in the unlocking state.

Then, the system controls the first switch valve SP to switch, so that the input air pressure provided by the air source output device a can be connected to the first air pressure output port AO1 in an air path manner and push the window air cylinder PW to close the smoke exhaust window W, wherein the pressure release end of the window air cylinder PW is connected to the exhaust valve E2 of the first switch valve SP through the second air pressure output port AO2 to release pressure, so that the window air cylinder PW can operate smoothly.

In this way, after the smoke exhaust window is closed, the system switches the second switching valve switch SL again, so that the air pressure input by the air source output device a is not communicated with the window lock cylinder PL any more, and at this time, the window lock cylinder PL recovers to the locked position due to the recovery spring thereof, so as to lock the smoke exhaust window W, and the normal air source window closing action of the smoke exhaust window system of the present invention is completed.

When the emergency state occurs, as shown in fig. 19a and 19b, when the puncturing device switch SE is triggered, the air pressure inside the high-pressure air bottle 5 is communicated with the window lock air cylinder PL through the emergency air passage 115 and provides air pressure to unlock the smoke exhaust window W, and the high-pressure air pushes the air passage switching shaft 111, the emergency air passage switching block 23 and the air passage blocking ball 134 at the same time, at this time, the high-pressure air bottle 5 is communicated with the second air pressure output port AO2, thereby providing emergency air pressure to the window air cylinder PW to push out the smoke exhaust window W, and at the same time, the air release end of the window air cylinder PW is led into the switching shaft air passage via the first air pressure output port AO1 and is communicated with and is released by the air release valve E1 of the emergency air passage switching element 2, thereby ensuring that the window air cylinder PW can normally operate.

It should be noted that the cross-sectional views and descriptions of fig. 16 to 19a to 19b are for convenience of describing the air channel flow structure of the present invention, wherein the air control device is also designed in a planar air channel manner for convenience of description, and the air control device may be implemented as a single embodiment in actual product manufacturing; in addition, in the embodiment of the present invention, the air control device is mainly used for controlling the window lock cylinder and the window body cylinder, however, in practical products, the air control device can also realize the effect of single air channel input and controlling multiple air channel outputs through the technical characteristics thereof, and is not limited to only controlling the opening and closing window and the operation window lock of the smoke exhaust window body.

Thus, the components, structure and technical features of the air pressure control device according to the present invention have been clearly and completely described, and it can be seen from the above description that the present invention has the following advantages:

1. by means of the technology of the present invention, normal air source is used to drive the operation of the disaster preventing pneumatic device and the operation of the switching valve switch and the air path switching module is adopted to switch the air path of the normal air source.

2. In the description of the 1 st point, the invention can also realize that in emergency, the emergency air source is provided by the high-pressure air bottle, and then the disaster prevention pneumatic device is forcedly driven to perform corresponding operation so as to ensure the use efficiency of the disaster prevention.

3. In addition, the function of locking or unlocking the window body of the smoke exhaust window can be realized by means of the control of the switch valve, the window body is opened or closed, and meanwhile, under an emergency state, the release of the window lock and the opening of the smoke exhaust window can be ensured, so that when an emergency condition is met, the whole air pressure control device can be triggered from a safety place through remote operation, and disaster prevention pneumatic equipment is forcedly driven, so that a protection effect is provided, and disaster loss is effectively reduced.

Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention, as will be apparent to those skilled in the art, without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An air pressure control device, comprising:

the air passage switching shaft is arranged in a switching shaft accommodating cavity of the air passage switching module and can slide, and the switching shaft accommodating cavity is communicated among the first air pressure output port, the second air pressure output port and the air source input port;

the first switching valve is controlled to switch, so that the air pressure input by the air source input port is communicated to the first air pressure output port or the second air pressure output port through the first switching valve, the switching shaft accommodating cavity and the notch of the air path switching shaft for output; meanwhile, the reflux air pressure input by the other air pressure output port is communicated to the exhaust valve of the first switching valve switch through the air path switching shaft, the switching shaft accommodating cavity and the first switching valve;

2. The air pressure control device according to claim 1, wherein the air path switching module further comprises: and the emergency air channel is formed in the air channel switching module, wherein one end of the air channel switching shaft is blocked between the switching shaft accommodating cavity and the emergency air channel.

3. The air pressure control device according to claim 2, wherein the air path switching module further comprises an emergency air path switching element and is disposed on an air path switching element body of the air path switching module, and the emergency air path switching element comprises:

4. The air pressure control device of claim 3, wherein the second emergency air path channel is in communication with one another through an emergency air source output second through hole in the emergency air path switching element body and an emergency air source output first through hole in the air path switching element body.

5. The air pressure control device according to claim 4, wherein the emergency air passage switching block is formed with a switching block recess, wherein the switching shaft accommodation chamber is communicated with the switching block accommodation chamber through an air source first through hole of the air passage switching element body and an air source second through hole of the emergency air passage switching element body, and the switching shaft accommodation chamber is also communicated with the second air pressure output port through the switching block recess.

6. The air pressure control device of claim 5, wherein the emergency air path switching element further comprises a return spring, and both ends of the return spring are respectively connected to the emergency air path switching element body and the emergency air path switching block.

7. The air pressure control device according to claim 6, wherein the air path switching shaft is formed with a first switching shaft recess and a second switching shaft recess, and the first switching shaft recess corresponds to the first air pressure output port, wherein the air source input port is communicated with the first air pressure output port through the switching shaft accommodating cavity and the first switching shaft recess; in addition, the second switching shaft concave part corresponds to the air source first through hole, wherein the air source input port is communicated with the air source first through hole through the switching shaft accommodating cavity and the second switching shaft concave part.

8. The air pressure control device as set forth in claim 7, wherein the air path switching element body further comprises a return spring, and both ends are respectively connected to the air path switching element body and the other end of the air path switching shaft.

9. The air pressure control device according to claim 8, further comprising:

10. The air pressure control device according to claim 9, wherein the air passage switching shaft is further formed with:

the switching shaft gas path channel is formed in the gas path switching shaft;

11. The air pressure control device of claim 10, wherein the air passage switching shaft and the emergency air passage switching block are each provided with a plurality of airtight rings.

12. The air pressure control device according to claim 9, wherein the air bottle puncturing device comprises a main body, and the main body is provided with an air passage connecting cavity and a second communication air port of the switching device, wherein the second communication air port of the switching device is communicated with the air passage connecting cavity, and the puncturing tube is arranged on the main body and can slide.

13. The air pressure control device according to claim 12, wherein the puncture device switch has a handle portion and a puncture tube pushing portion, and the puncture tube pushing portion is disposed in the air passage connection cavity and contacts and is linked to the other end of the puncture tube, wherein the operation of the handle portion can cause the puncture tube pushing portion to push the end of the puncture tube so that the puncture tube pierces the high-pressure air bottle, and thus the gas inside the high-pressure air bottle is introduced into the air passage connection cavity through the puncture tube.

14. The air pressure control device according to claim 13, wherein the number of the air bottle piercing devices and the number of the high-pressure air bottles are two, and two ends of a connecting rod are respectively connected to the piercing device switches of the two air bottle piercing devices.

15. The air pressure control device of claim 1, wherein the first switching valve switch switches the first switching valve via a first electronically controlled switch.

16. The air pressure control device according to claim 1, wherein the second switching valve switch switches the second switching valve by a second electric control switch.

17. The air pressure control device of claim 7, wherein the air passage switching module further comprises a first air passage connection block and is connected to the air passage switching element body, wherein the air supply input port and the first switching valve switch are disposed on the first air passage connection block, and the first air passage connection block comprises: and the first switching valve switch is in gas circuit communication with the input gas source channel through a through hole.

18. The air pressure control device according to claim 17, wherein the air passage switching element body is formed with a first air passage and a second air passage respectively and is communicated with the switching shaft accommodating cavity, wherein the first air passage corresponds to the first switching shaft concave portion of the air passage switching shaft and is communicated with the first switching valve switch through a first air passage on the first air passage connecting block; in addition, the second air through hole corresponds to the second switching shaft concave part of the air path switching shaft and is communicated with the first switching valve switch through a second air channel on the first air path connecting block.

19. The air pressure control device as set forth in claim 18, wherein the air passage switching element body is formed with a third air pressure output connection through hole and an emergency air passage connection through hole thereon, respectively, and the third air pressure output connection through hole is communicated with the third air pressure output port, and the emergency air passage connection through hole is communicated with the emergency air passage.

20. The air pressure control device of claim 19, wherein the air passage switching module further comprises a second air passage connection block and is connected to the first air passage connection block, wherein the second air passage connection block is formed with a third air pressure output air passage therein, and the third air pressure output air passage is respectively connected to the third air pressure output connection through hole and the emergency air passage connection through a first air passage connection passage and a second air passage connection passage on the first air passage connection block.

21. The air pressure control device of claim 20, wherein the third air pressure output air passage is communicated with the second switching valve switch through a second switching valve switch connecting hole, and an air passage blocking sphere is arranged and can roll in the third air pressure output air passage, wherein when air pressure is input through the air source input port, the air passage blocking sphere is pushed by air pressure and blocks between the first air passage connecting passage and the second air passage connecting passage; in addition, when the air pressure is input through the emergency air passage, the air passage blocking ball is pushed by the air pressure and blocks the space between the first air passage connecting passage and the second switching valve switch connecting hole.

22. The air pressure control device of claim 21, wherein the input air supply passage is connected to the second switching valve switch via an air opening in the first air passage connection block and an input air passage in the second air passage connection block.

23. The air pressure control device of claim 1, further comprising a gas filter element coupled to the gas source input.

24. A fire smoke window system comprising the air pressure control device of any one of claims 1 to 23, and further comprising;

the air source output device is connected with the air source input port;

at least one exhaust window opening or closing by at least one window cylinder;

25. The fire protection and smoke evacuation window system according to claim 24, wherein said window lock cylinder is provided with a return spring and said window lock cylinder unlocks said smoke evacuation window when a third air pressure outlet is supplying air to said window lock cylinder and locks said smoke evacuation window by means of said return spring when said third air pressure outlet is stopping supplying air.