Exhaust device

Abstract

The utility model relates to an exhaust device, the exhaust device is used for exhausting air in a house, the house is provided with an exhaust outlet, the exhaust device is characterized by comprising a ventilation assembly, a moving box, a fan and a telescopic pipe, and the ventilation assembly is used for being arranged at the exhaust outlet; the moving box is provided with a first opening, a second opening and a containing cavity, and the first opening and the second opening communicate with the containing cavity; the fan is arranged in the accommodating cavity and is provided with a first air outlet and a first air inlet, and the first air outlet is communicated with the second opening; the telescopic pipe is provided with a first end and a second end which are opposite, the first end is located in the containing cavity and arranged at the first air inlet, and the second end is used for penetrating through the first opening and is detachably connected with the ventilation assembly. Compared with the prior art, the air exhaust device has the advantages that a worker only needs to take out the movable box when air needs to be exhausted in a house, the movable box is placed in a free area at ordinary times, the arrangement mode is more flexible, the occupied space is small, and the arrangement cost is low.

Description

Technical Field

[0001] The present application relates to the technical field of fire protection, and in particular to an exhaust device. Background Art

[0002] The electrical house of a thermal power plant is equipped with a gas fire extinguishing device and an exhaust device for exhausting air after the fire is extinguished. In traditional technology, the exhaust device is usually installed in the electrical house and connected to the outside world. This method causes the exhaust device to occupy a large space in the electrical house, resulting in high installation costs of the exhaust device. Summary of the invention

[0003] Based on this, it is necessary to provide an exhaust device to address the problem that the exhaust device in traditional technology occupies a large space and causes high installation cost.

[0004] The technical solution is as follows:

[0005] One embodiment provides an exhaust device, which is used to exhaust air from inside a house, wherein the house is provided with an exhaust port, and the exhaust device comprises:

[0006] A ventilation component, the ventilation component is used to be arranged at the exhaust port;

[0007] A moving box, the moving box having a first opening, a second opening and a receiving cavity, wherein the first opening and the second opening are both connected to the receiving cavity;

[0008] a fan, the fan being disposed in the receiving chamber and having a first air outlet and a first air inlet, the first air outlet being communicated with the second opening; and

[0009] A telescopic tube, wherein the telescopic tube has a first end and a second end opposite to each other, wherein the first end is located in the receiving cavity and is arranged at the first air inlet, and the second end is used to pass through the first opening and be detachably connected to the ventilation assembly.

[0010] In the above-mentioned exhaust device, the ventilation component is arranged at the exhaust port of the house. When the house needs to be exhausted, the staff places the mobile box outside the house to be exhausted, takes out the second end of the telescopic tube from the receiving chamber and connects it to the ventilation component, then turns on the fan. Under the action of the fan, the gas in the house flows into the telescopic tube through the ventilation component at the exhaust port, enters the first air inlet from the first end of the telescopic tube, and finally flows to the second opening through the first air outlet and is discharged to the outside. After the exhaust is completed, the staff detaches the second end from the ventilation component and receives the second end from the first opening into the receiving chamber, and then places the mobile box in an idle area. Compared with the traditional technology, in the above-mentioned exhaust device, the staff only needs to take out the mobile box when the house needs to be exhausted, and usually places the mobile box in an idle area. The layout method is more flexible, occupies less space, and has low layout cost.

[0011] In one embodiment, the ventilation assembly includes a mounting seat and a valve, wherein the mounting seat is used to be disposed on the exhaust port, and the valve is disposed on the mounting seat and has a second air inlet and a second air outlet, wherein the second air inlet is used to communicate with the interior of the house, and the second air outlet is used to be detachably connected to the second end.

[0012] In one embodiment, a first flange is provided on an outer edge of the second air outlet, and a second flange is provided on an outer edge of the second end. The first flange is used to dock with the second flange and be detachably connected to the second flange.

[0013] In one embodiment, the exhaust device further includes a connecting bolt and a connecting nut, the first flange is provided with a first assembly hole, the second flange is provided with a second assembly hole, one end of the connecting bolt is passed through the first assembly hole and the second assembly hole and is threadedly connected to the connecting nut; or,

[0014] The exhaust device also includes a connecting bolt and a connecting nut. The first flange is provided with a first assembly hole, and the second flange is provided with a second assembly hole. One end of the connecting bolt is passed through the second assembly hole and the first assembly hole and is threadedly connected to the connecting nut.

[0015] In one embodiment, the exhaust device also includes an assembly clamp, which has a first clamping portion and a second clamping portion that are rotatably connected, the first clamping portion is used to abut against the first flange, and the second clamping portion is used to abut against the second flange, so that the first flange and the second flange are both used to be clamped between the first clamping portion and the second clamping portion.

[0016] In one embodiment, the mounting base includes an outer frame and a support plate, the outer frame is arranged on the outer edge of the support plate and is used to abut against the mouth wall of the exhaust port, the valve is arranged on the support plate, and the second air inlet and the second air outlet are respectively located on opposite sides of the support plate.

[0017] In one embodiment, the outer frame is arranged along the circumference of the support plate to form a accommodating cavity with an opening, the second air outlet is located in the accommodating cavity, and the ventilation assembly also includes a door body, which is arranged on the outer frame and can open or close the opening.

[0018] In one of the embodiments, the exhaust device further includes a power supply component, which is disposed on the outer frame and is used to be electrically connected to the fan.

[0019] In one of the embodiments, the fan is provided with a conducting wire and a winding portion, the conducting wire is used to be electrically connected to the power supply component, and the winding portion is used to wind up the conducting wire.

[0020] In one embodiment, the winding portion includes a winding rod, the winding rod is arranged on the fan, and the conducting wire is used to be wound around the winding rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] FIG. 1 is a schematic diagram of the overall structure of an exhaust device in one embodiment of the present application.

[0023] FIG. 2 is a schematic structural diagram of the AA section in FIG. 1 .

[0024] FIG3 is a schematic diagram of the overall structure of a ventilation assembly in one embodiment of the present application.

[0025] FIG. 4 is a schematic diagram of the overall structure of a mobile box in one embodiment of the present application.

[0026] Notes on the attached drawings:

[0027] 100, housing; 110, exhaust vent; 200, ventilation assembly; 210, mounting seat; 211, outer frame; 212, support plate; 220, valve; 221, second air inlet; 222, second air outlet; 2221, first flange; 223, switch actuator; 230, door body; 240, accommodating chamber; 300, moving box; 310, first opening; 320, second opening; 330, accommodating chamber; 400, fan; 410, first air outlet; 420, first air inlet; 500, telescopic tube; 510, first end; 520, second end; 521, second flange; 600, extension tube; 700, power supply assembly; 810, wire; 820, winding section; 910, handbrake-type universal wheel; 920, handrail. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0029] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0030] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0034] Please refer to Figures 1 to 4. An embodiment of the present application provides an exhaust device, which is used to exhaust the interior of a house 100. The house 100 is provided with an exhaust port 110, and is characterized in that the exhaust device includes a ventilation assembly 200, a mobile box 300, a fan 400 and a telescopic tube 500. The ventilation assembly 200 is used to be arranged at the exhaust port 110; the mobile box 300 has a first opening 310, a second opening 320 and a receiving cavity 330, and the first opening 310 and the second opening 320 are both connected to the receiving cavity 330; the fan 400 is arranged in the receiving cavity 330 and has a first air outlet 410 and a first air inlet 420, and the first air outlet 410 is connected to the second opening 320; the telescopic tube 500 has a first end 510 and a second end 520 opposite to each other, the first end 510 is located in the receiving cavity 330 and is arranged at the first air inlet 420, and the second end 520 is used to pass through the first opening 310 and be detachably connected to the ventilation assembly 200.

[0035] The above-mentioned exhaust device, the ventilation assembly 200 is arranged at the exhaust port 110 of the house 100. When the house 100 needs to be exhausted, the staff will place the mobile box 300 outside the house 100 to be exhausted, and take out the second end 520 of the telescopic tube 500 from the receiving chamber 330 and connect it to the ventilation assembly 200, and then turn on the fan 400. Under the action of the fan 400, the gas in the house 100 flows through the ventilation assembly 200 at the exhaust port 110 to the telescopic tube 500, and enters the first air inlet from the first end 510 of the telescopic tube 500. 420, and finally flows to the second opening 320 through the first air outlet 410 and is discharged to the outside. After the exhaust is completed, the staff detaches the second end 520 from the ventilation component 200 and stores the second end 520 from the first opening 310 into the accommodating chamber 330, and then places the mobile box 300 in an idle area. Compared with the traditional technology, with the above-mentioned exhaust device, the staff only needs to take out the mobile box 300 when exhaust is needed in the house 100, and usually place the mobile box 300 in an idle area. The layout method is more flexible, occupies less space, and has low layout cost.

[0036] In addition, a factory building is usually provided with a plurality of houses 100, and all houses 100 are respectively provided with an exhaust port 110 and a ventilation assembly 200 arranged at the exhaust port 110. In the conventional technology, it is necessary to provide a corresponding independent fixed air duct and an aluminum alloy shutter for each house 100, which has a high installation cost and occupies a large space. By adopting the exhaust device in the present application, the mobile box 300 can be shared. In one embodiment, when one of the houses 100 in the factory building needs to be exhausted, the staff takes out the mobile box 300 from the tool room or storage room, and moves the mobile box 300 to the ventilation assembly 200 corresponding to the house 100 to be exhausted, so as to exhaust the house 100, thereby realizing the sharing of the mobile box 300 and reducing the layout space and layout cost of the exhaust device.

[0037] In some embodiments, the telescopic tube 500 is a foldable fireproof flexible tube, which can be bent to a certain extent and has a fireproof function. The exhaust outlet 110 of the house 100 can be set on the side wall, etc. By setting the foldable fireproof flexible tube to be able to be bent, the second end 520 of the telescopic tube 500 can be more flexibly connected to the ventilation assembly 200 of the exhaust outlet 110 at different positions, which is more practical. Preferably, the foldable fireproof flexible tube is 3m long to meet most situations.

[0038] Optionally, the air outlet 110 of the house 100 is set between 0.2m and 0.5m from the ground, for example 0.3m, to prevent the telescopic tube 500 from being damaged by excessive bending when connecting to the ventilation assembly 200 at the air outlet 110 .

[0039] Please refer to Figure 1. In one embodiment, the exhaust device also includes an extension pipe 600, one end of the extension pipe 600 is arranged at the first air outlet 410 and is located in the accommodating cavity, and the opposite ends of the extension pipe 600 can be close to or away from each other. When the extension pipe 600 needs to be stored, the opposite ends of the extension pipe 600 are close to each other so that the extension pipe 600 can be stored in the accommodating cavity. When the gas in the house 100 needs to be discharged to a farther distance, the opposite ends of the extension pipe 600 are moved away from each other, so that one end of the extension pipe 600 extends to a distant place, thereby discharging the gas in the house 100 to a distant place.

[0040] Preferably, the extension tube 600 also adopts a foldable fireproof flexible tube, which will not be described in detail here.

[0041] Please refer to Figures 1 to 3. In one embodiment, the ventilation assembly 200 includes a mounting base 210 and a valve 220. The mounting base 210 is used to be disposed on the exhaust port 110. The valve 220 is disposed on the mounting base 210 and has a second air inlet 221 and a second air outlet 222. The second air inlet 221 is used to communicate with the inside of the house 100, and the second air outlet 222 is used to be detachably connected to the second end 520.

[0042] The valve 220 is arranged on the mounting seat 210 located at the exhaust port 110, and the second air inlet 221 of the valve 220 is connected to the house 100. When the house 100 needs to be exhausted, the second air outlet 222 of the valve 220 is connected to the second end 520 of the telescopic tube 500, the valve 220 is opened, and the house 100 is exhausted through the fan 400. After the exhaust is completed, the second air outlet 222 of the valve 220 is detached from the second end 520 of the telescopic tube 500, and the valve 220 is closed to close the exhaust port 110 of the house 100; by opening or closing the valve 220, the house 100 can be exhausted more flexibly and conveniently, and at the same time, it does not affect the daily use of the house 100, thereby improving the overall practicality of the exhaust device.

[0043] Furthermore, the valve 220 is also provided with a switch actuator 223, and the staff operates the switch actuator 223 to open or close the valve 220; there is enough space near the mounting seat 210 for the staff to operate the switch actuator 223, and the operation is convenient.

[0044] In one embodiment, the valve 220 and the second end 520 of the telescopic tube 500 are connected by a flange clamp and a common plate flange to achieve a quick connection, and the connection is more stable.

[0045] In one embodiment, the air outlet 110 is opened on the wall of the house 100 , and the mounting base 210 is embedded in the air outlet 110 of the wall to fix the mounting base 210 .

[0046] Preferably, the valve 220 is a square 70°C fusible wall-mounted fire damper, which is normally closed. When ventilation is required in the house 100, the staff manually operates the switch actuator 223 to open the fire damper.

[0047] Please refer to Figures 1, 3 and 4. In one embodiment, a first flange 2221 is provided on the outer edge of the second air outlet 222, and a second flange 521 is provided on the outer edge of the second end 520. The first flange 2221 is used to dock with the second flange 521 and be detachably connected to the second flange 521.

[0048] The first flange 2221 and the second flange 521 can be butted against each other to achieve connection, and the connection effect is reliable, thereby improving the connection reliability and stability between the telescopic tube 500 and the valve 220 .

[0049] Furthermore, the first flange 2221 is arranged around the outer edge of the first air outlet 410 and has a first docking surface, and the second flange 521 is arranged around the outer edge of the second end 520 of the telescopic tube 500 and has a second docking surface. The first docking surface and the second docking surface can be docked to achieve the connection between the valve 220 and the telescopic tube 500.

[0050] In one embodiment, the exhaust device also includes a connecting bolt and a connecting nut (not shown in the figure), the first flange 2221 is provided with a first assembly hole, the second flange 521 is provided with a second assembly hole, one end of the connecting bolt is passed through the first assembly hole and the second assembly hole and is threadedly connected to the connecting nut.

[0051] When it is necessary to connect the second end 520 of the telescopic tube 500 to the first air outlet 410 of the valve 220, one end of the connecting bolt is passed through the first assembly hole of the first flange 2221 and the second assembly hole of the second flange 521 and is screwed with the connecting nut to achieve the connection between the first flange 2221 and the second flange 521, which is not easy to fall off. Such an arrangement has low cost and reliable connection effect.

[0052] As an alternative embodiment to the above embodiment, the exhaust device further includes a connecting bolt and a connecting nut, the first flange 2221 is provided with a first assembly hole, the second flange 521 is provided with a second assembly hole, one end of the connecting bolt is passed through the second assembly hole and the first assembly hole and is threadedly connected with the connecting nut. Compared with the above embodiment, the order in which the connecting bolt passes through the first assembly hole and the second assembly hole is different, which will not be repeated here.

[0053] In one embodiment, at least two first assembly holes are provided and are spaced apart along the circumference of the first flange 2221, at least two second assembly holes are provided and are spaced apart along the circumference of the second flange 521, the second assembly holes are provided in a one-to-one correspondence with the first assembly holes, and at least two connecting bolts and connecting nuts are provided and are spaced apart along the circumference of the second flange 521; in this way, the connection effect between the first flange 2221 and the second flange 521 can be made more secure, preventing the telescopic tube 500 and the valve 220 from separating and causing the interruption of the exhaust process.

[0054] In one embodiment, the exhaust device also includes an assembly clamp (not shown in the figure), which has a first clamping portion and a second clamping portion that are rotatably connected, the first clamping portion is used to abut against the first flange 2221, and the second clamping portion is used to abut against the second flange 521, so that the first flange 2221 and the second flange 521 are both used to be clamped between the first clamping portion and the second clamping portion.

[0055] The assembly clamp can clamp the first flange 2221 and the second flange 521 between the first clamping portion and the second clamping portion to achieve connection between the first flange 2221 and the second flange 521, thereby achieving connection between the valve 220 and the telescopic tube 500; with this arrangement, the connection process is convenient and fast, the cost is low, and the connection effect is reliable.

[0056] Furthermore, the first clamping portion and the second clamping portion can be moved closer to or farther away from each other to contact and clamp the first flange 2221 and the second flange 521. Preferably, the first clamping portion and the second clamping portion are connected to each other by a screw connection so that the first clamping portion and the second clamping portion can be moved closer to or farther away from each other by rotating the screw, thereby facilitating the clamping of the first flange 2221 and the second flange 521.

[0057] Please refer to Figures 1 to 3. In one embodiment, the mounting base 210 includes an outer frame 211 and a support plate 212. The outer frame 211 is arranged on the outer edge of the support plate 212 and is used to abut against the mouth wall of the exhaust port 110. The valve 220 is arranged on the support plate 212. The second air inlet 221 and the second air outlet 222 are respectively located on opposite sides of the support plate 212.

[0058] The outer frame 211 is arranged on the outer edge of the support plate 212 and abuts against the mouth wall of the exhaust port 110. The valve 220 is arranged on the support plate 212 to realize the installation of the valve 220. The second air inlet 221 and the second air outlet 222 of the valve 220 are respectively located on the opposite sides of the support plate 212. When it is necessary to exhaust the house 100, the gas in the house 100 can only flow to the second air outlet 222 through the second air inlet 221 and flow to the telescopic tube 500. With this arrangement, the valve 220 can be installed at the vent of the house 100 to realize exhaust and ventilation in the house 100, and the installation effect is reliable.

[0059] Specifically, the second air inlet 221 and the second air outlet 222 are respectively arranged at opposite ends of the valve 220, the valve 220 is penetrated by the support plate 212, and the four sides of the valve 220 are welded to the support plate 212, so that the second air inlet 221 and the second air outlet 222 are respectively located on opposite sides of the support plate 212, thereby fixing the valve 220.

[0060] Please refer to Figures 2 to 3. In one embodiment, the outer frame 211 is arranged along the circumference of the support plate 212 to form a accommodating cavity 240 with an opening. The second air outlet 222 is located in the accommodating cavity 240. The ventilation assembly 200 also includes a door body 230, which is arranged on the outer frame 211 and can open or close the opening.

[0061] When it is necessary to use an exhaust device to exhaust the house 100, the staff places the mobile box 300 outside the house 100 to be exhausted, and then opens the door body 230 to connect the second end 520 of the telescopic tube 500 with the second air outlet 222 in the accommodating chamber 240 to carry out subsequent exhaust work; after the exhaust is completed, the staff detaches the second end 520 of the telescopic tube 500 from the second air outlet 222 in the accommodating chamber 240 and receives the second end 520 from the first opening 310 into the accommodating chamber 330, and then places the mobile box 300 in an empty area, and then closes the door body 230 to seal the opening; with such a setting, the second air outlet 222 of the valve body in the accommodating chamber 240 can be protected at ordinary times to prevent damage to the second air outlet 222 caused by accidental touch by personnel, thereby affecting the exhaust of the house 100.

[0062] In some embodiments, one side of the door body 230 is rotatably disposed on the outer frame 211 to enable the door body 230 to open and close the opening.

[0063] Preferably, the door body 230 is a fire door made of 2 mm thick 304 stainless steel material. Preferably, the fire door is 900 mm high, 600 mm wide, and is set 300 mm above the ground. The fire door is connected to the outer frame 211 with a 304 stainless steel hinge, and a handle is provided on the fire door to facilitate staff to open or close it.

[0064] Please refer to FIG. 1 to FIG. 4 . In one embodiment, the exhaust device further includes a power supply component 700 . The power supply component 700 is disposed on the outer frame 211 and is used to be electrically connected to the fan 400 .

[0065] When it is necessary to use the exhaust device to exhaust the house 100, the staff will place the mobile box 300 outside the house 100 to be exhausted, and connect the second end 520 of the telescopic tube 500 with the second air outlet 222 in the accommodating chamber 240. Then, the power supply component 700 on the outer frame 211 is electrically connected to the fan 400 in the mobile box 300 to power the fan 400, so that the fan 400 can be operated and exhaust the house 100. With this arrangement, when the exhaust device is used to exhaust the house 100, there is no need to set up other power supplies for powering the fan 400 to achieve the operation of the fan 400, so that local power supply is achieved, the operation is convenient, and the practicability is strong.

[0066] Please refer to 4 . In one embodiment, the fan 400 is provided with a conductor 810 and a reel 820 . The conductor 810 is used to be electrically connected to the power supply assembly 700 , and the reel 820 is used to reel the conductor 810 .

[0067] When there is a certain distance between the mobile box 300 and the power supply component 700 on the outer frame 211, the wire 810 on the fan 400 can be electrically connected to the power supply component 700, so that the fan 400 can obtain a stable and reliable power supply; in addition, by setting the wire 810, the setting position of the mobile box 300 is also more flexible, and the winding part 820 can wind up the wire 810 to prevent the wire 810 from being cross-entangled, thereby facilitating the transportation of the mobile box 300, reducing the probability of failure, and improving the practicality of the exhaust device.

[0068] Furthermore, the power supply component 700 includes a power socket built into the accommodating cavity 240, and a power plug is provided at the end of the wire 810 away from the fan 400, which can be plugged into the power socket to power the fan 400; preferably, the power socket adopts a 380V voltage power socket with a switch button type, and the switch button is usually in a closed state. When the fan 400 needs to be used, the switch button is turned on to power the fan 400.

[0069] Please refer to FIG. 4 . In one embodiment, the winding portion 820 includes a winding rod. The winding rod is disposed on the fan 400 . The conductive wire 810 is used to be wound around the winding rod.

[0070] The winding rod provided on the fan 400 can wind the wire 810, thereby realizing the reeling of the wire 810, which has a simple structure and low implementation cost, and improves the practicability of the exhaust device.

[0071] In one embodiment, the mobile box 300 is also provided with a handbrake type universal wheel 910 and an armrest 920, so that the staff can drive the mobile box 300 to move, and the handbrake can be used to fix the position of the mobile box 300 at any time, which is highly practical; preferably, the armrest 920 is made of 304 stainless steel, and the height of the armrest 920 is between 1.3m and 1.5m to facilitate the moving operation.

[0072] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An exhaust device, the exhaust device is used to exhaust air inside a house, the house is provided with an exhaust port, characterized in that: The exhaust device comprises: A ventilation component, the ventilation component is used to be arranged at the exhaust port; A moving box, the moving box having a first opening, a second opening and a receiving cavity, wherein the first opening and the second opening are both connected to the receiving cavity; a fan, the fan being disposed in the receiving chamber and having a first air outlet and a first air inlet, the first air outlet being communicated with the second opening; and A telescopic tube, wherein the telescopic tube has a first end and a second end opposite to each other, wherein the first end is located in the receiving cavity and is arranged at the first air inlet, and the second end is used to pass through the first opening and be detachably connected to the ventilation assembly.

2. The exhaust device according to claim 1, characterized in that: The ventilation assembly includes a mounting seat and a valve, wherein the mounting seat is used to be arranged on the exhaust port, and the valve is arranged on the mounting seat and has a second air inlet and a second air outlet, wherein the second air inlet is used to communicate with the inside of the house, and the second air outlet is used to be detachably connected to the second end.

3. The exhaust device according to claim 2, characterized in that: A first flange is provided on the outer edge of the second air outlet, and a second flange is provided on the outer edge of the second end. The first flange is used to dock with the second flange and be detachably connected to the second flange.

4. The exhaust device according to claim 3, characterized in that: The exhaust device further comprises a connecting bolt and a connecting nut, the first flange is provided with a first assembly hole, the second flange is provided with a second assembly hole, one end of the connecting bolt is passed through the first assembly hole and the second assembly hole and is threadedly connected to the connecting nut; or, The exhaust device also includes a connecting bolt and a connecting nut. The first flange is provided with a first assembly hole, and the second flange is provided with a second assembly hole. One end of the connecting bolt is passed through the second assembly hole and the first assembly hole and is threadedly connected to the connecting nut.

5. The exhaust device according to any one of claims 3 to 4, characterized in that: The exhaust device also includes an assembly clamp, which has a first clamping portion and a second clamping portion that are rotatably connected, the first clamping portion being used to abut against the first flange, and the second clamping portion being used to abut against the second flange, so that the first flange and the second flange are both used to be clamped between the first clamping portion and the second clamping portion.

6. The exhaust device according to claim 2, characterized in that: The mounting seat includes an outer frame and a support plate, the outer frame is arranged on the outer edge of the support plate and is used to abut against the mouth wall of the exhaust port, the valve is arranged on the support plate, and the second air inlet and the second air outlet are respectively located on opposite sides of the support plate.

7. The exhaust device according to claim 6, characterized in that: The outer frame is arranged along the circumference of the support plate to form a accommodating cavity with an opening, and the second air outlet is located in the accommodating cavity. The ventilation assembly also includes a door body, which is arranged on the outer frame and can open or close the opening.

8. The exhaust device according to claim 6, characterized in that: The exhaust device also includes a power supply component, which is arranged on the outer frame and is used to be electrically connected to the fan.

9. The exhaust device according to claim 8, characterized in that: The fan is provided with a conducting wire and a winding portion, wherein the conducting wire is used to be electrically connected to the power supply assembly, and the winding portion is used to wind up the conducting wire.

10. The exhaust device according to claim 9, characterized in that: The winding portion comprises a winding rod, the winding rod is arranged on the fan, and the conducting wire is used to be wound around the winding rod.

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