Ventilation device for closed space

Abstract

The utility model provides a ventilation device for a closed space, which relates to the technical field of ventilation equipment, and comprises a shell, a ventilation channel and a ventilation device, the fan is arranged at one end, used for air inlet, of the air exchange channel; the valve mechanism is arranged at the air outlet end of the air exchange channel and comprises a motor, a magnetic block, a valve plate and a magnetic bent plate, the magnetic bent plate is rotatably fixed to the upper portion of the air exchange channel and comprises a first bent part and a second bent part which are bent oppositely, the first bent part is fixedly connected with the valve plate, and the second bent part is fixedly connected with the valve plate. The motor is connected with the magnetic block to drive the magnetic block to rotate, so that the magnetic block can attract the first bent part and the second bent part respectively, and therefore the valve is driven to rotate to close or open the ventilation channel. The device has the advantages of being simple in structure, convenient to operate, very low in energy consumption, high in ventilation efficiency, small in occupied space and free of changing a sealed space structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ventilation equipment technical field especially relates to a closed space ventilation and air exchange device. BACKGROUND

[0002] The air inside the closed space is often polluted and needs to be ventilated. For example, the closed space of the pressurized building is a high air-tight and high-closed building structure form, all the windows are non-openable pressure-tight beds, and natural ventilation and air exchange are impossible. In the pressurized building, such as a hotel type building, in order to provide a better living experience, the building contains a large amount of thermal insulation decoration and soft material, which inevitably releases some toxic and harmful substances. In the initial stage of the pressurized building operation and the initial stage of the cabin body interruption operation reuse, the concentration of indoor decoration gas volatiles is high, which is easy to cause human discomfort. Although the existing ventilation and air exchange fan can solve the air exchange problem, it is difficult to ensure sealing, and some closed spaces have a very high energy consumption and low air exchange efficiency through the air exchange mode of the action of the pressurized equipment and the valve. SUMMARY

[0003] Therefore, in order to solve the air exchange problem in the closed space, the embodiments of the utility model provide a closed space ventilation and air exchange device.

[0004] The embodiments of the utility model provide a closed space ventilation and air exchange device, which comprises:

[0005] A shell is internally provided with an air exchange channel;

[0006] A fan is arranged at one end of the air exchange channel for air inlet;

[0007] A valve mechanism is arranged at one end of the air exchange channel for air outlet, the valve mechanism comprises a motor, a magnetic block, a valve plate and a magnetic bent plate, the magnetic bent plate is rotatably fixed on the upper part of the air exchange channel, the magnetic bent plate comprises a first bent part and a second bent part which are oppositely bent, the first bent part is fixedly connected with the valve plate, the motor is connected with the magnetic block to drive the magnetic block to rotate, so that the magnetic block can be attracted to the first bent part and the second bent part respectively, thereby driving the valve to rotate to close or open the air exchange channel.

[0008] Further, the magnetic bent plate further comprises a rotating shaft, the rotating shaft is rotatably installed in the air exchange channel, and the first bent part and the second bent part are connected with the outer wall of the rotating shaft respectively.

[0009] Further, the included angle between the first bent part and the second bent part is obtuse.

[0010] Further, the valve mechanism further comprises a fixed frame fixedly installed in the ventilation passage, the valve plate is arranged on one side of the fixed frame, and the valve plate is rotatable to be attached to or separated from the fixed frame, so that the ventilation passage is closed or opened.

[0011] Further, a sealing ring is arranged on the part of the fixed frame in contact with the valve plate.

[0012] Further, the valve mechanism further comprises a rotating block, the rotating block is installed on the output shaft of the motor, and the magnetic block is fixed on the rotating block and arranged eccentrically relative to the output shaft of the motor.

[0013] Further, the rotating block and the magnetic block are both cylindrical, the rotating block is coaxially arranged on the output shaft of the motor, the magnetic block is embedded in the front end of the rotating block, and the front end of the rotating block extends to the rear of the magnetic bending plate.

[0014] Further, the fan comprises a fan body and an air inlet window, the air inlet window is fixedly installed on one side of the shell, and the fan body is installed on the air inlet window and connected to the ventilation passage.

[0015] Further, the ventilation passage is a straight-line type passage.

[0016] Further, the ventilation passage is a bending passage bent at least once.

[0017] The technical scheme provided by the embodiment of the utility model has the beneficial effects that the utility model discloses a ventilation and air exchange device for a sealed space, a magnetic block is driven to rotate by a motor, the relative position of the magnetic block relative to a magnetic bending plate is changed, the first bending part and the second bending part of the magnetic bending plate are adsorbed, when the first bending part is adsorbed, a valve plate blocks the ventilation passage, and the sealed space is kept sealed; when the second bending part is adsorbed, the valve plate is rotated to open the ventilation passage, and the fan is started to exhaust air, so that when air exchange is not performed, the valve plate blocks the ventilation passage to realize sealing of the sealed space, when air exchange is needed, the valve plate opens the ventilation passage, air exchange is realized under the action of the fan, the structure is simple, the operation is convenient, the energy consumption is very low, the air exchange efficiency is high, the occupied space is small, and the structure of the sealed space does not need to be changed. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of a ventilation and air exchange device for a sealed space in a non-air exchange state according to the utility model embodiment 1;

[0019] Figure 2 is a schematic view of a ventilation and air exchange device for a sealed space in an air exchange state according to the utility model embodiment 1;

[0020] Figure 3 isFigure 1 The working state diagram of the valve mechanism;

[0021] Figure 4 The working state diagram of the valve mechanism; Figure 2 The working state diagram of the valve mechanism;

[0022] Figure 5 The explosion diagram of the valve mechanism;

[0023] Figure 6 The schematic diagram of the magnetic bending plate;

[0024] Figure 7 The closing schematic diagram of the valve mechanism;

[0025] Figure 8 The opening schematic diagram of the valve mechanism;

[0026] Figure 9 The explosion diagram of the fan;

[0027] Figure 10 The schematic diagram of the closed space ventilation device in the non-ventilation state in the second embodiment of the utility model.

[0028] In the drawing: 1, the shell; 101, the ventilation passage; 2, the fan; 201, the fan body; 202, the air inlet window; 3, the valve mechanism; 301, the motor; 302, the valve plate; 303, the magnetic bending plate; 304, the magnetic block; 305, the fixed frame; 306, the fixed support; 307, the first bending part; 308, the second bending part; 309, the rotating shaft; 310, the support; 311, the rotating block. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the utility model more clear, the following will combine the drawings to make further description on the utility model embodiment. The following introduction is one of the more optimal ones in multiple possible embodiments of the utility model, and is intended to provide the basic understanding of the utility model, but is not intended to confirm the key or decisive elements of the utility model or limit the scope of protection.

[0030] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary, and not as a limitation. Thus, other examples of example embodiments can have different values.

[0031] The technology, method and equipment known to the person skilled in the relevant field can not be discussed in detail, but should be regarded as a part of the specification under appropriate circumstances.

[0032] It should be noted that like numerals and letters refer to like items throughout the several views, and once an item is defined in one view, it should not have to be discussed further in subsequent views. It is to be understood that the dimensions of the various parts shown in the drawings are not necessarily to scale.

[0033] In the description of the present application, it should be noted that the circuits, electronic components and modules involved in the present application are all prior art, which can be realized by those skilled in the art without further description, and the content protected by the present application does not involve improvement of internal structure and method.

[0034] It should be noted that unless otherwise specified and limited, the terms "mounting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] Example 1

[0036] Please refer to Figures 1-4 The embodiment of the present application provides a closed space ventilation device, which comprises a shell 1, a fan 2 and a valve assembly.

[0037] The shell 1 is internally provided with an air exchange channel 101, which is generally a circular pipeline and is connected with an external air outlet pipeline, so as to make the inside of the sealed space communicate with the outside. Considering that the closed space ventilation device is generally installed at the top of the sealed space such as a pressurized building, the air exchange channel 101 is a bending channel with at least one bending. As described in the embodiment, the air exchange channel 101 is an L-shaped channel with right-angle bending.

[0038] The fan 2 is arranged at one end of the air exchange channel 101 for air inlet. In combination with Figure 9 As shown in the embodiment, the lower end of the air exchange channel 101 is the air inlet end, and the fan 2 is installed in the air exchange channel 101. Specifically, the fan 2 comprises a fan body 201 and an air inlet window 202, the air inlet window 202 is fixedly installed on one side of the shell 1, and the fan body 201 is installed on the air inlet window 202 and connected with the air exchange channel 101.

[0039] The valve mechanism 3 is disposed at the air outlet end of the ventilation channel 101. In this embodiment, the right end of the ventilation channel 101 is the air outlet end, and the valve mechanism 3 is installed at the right end of the ventilation channel 101. The valve mechanism 3 can control the ventilation channel 101 to close or open.

[0040] like Figures 5-8 As shown, the valve mechanism 3 specifically includes a motor 301, a magnetic block 304, a valve plate 302, and a magnetic bending plate 303. The magnetic bending plate 303 is rotatably fixed to the upper part of the ventilation channel 101. The magnetic bending plate 303 includes a first bent portion 307 and a second bent portion 308 that are bent relative to each other. The first bent portion 307 is fixedly connected to the valve plate 302. The motor 301 is connected to the magnetic block 304 to drive the magnetic block 304 to rotate, so that the magnetic block 304 can attract the first bent portion 307 and the second bent portion 308 respectively, thereby causing the valve to rotate and close or open the ventilation channel 101.

[0041] The magnetic bending plate 303 is generally rotatably connected to the upper part of the ventilation channel 101. In this embodiment, the magnetic bending plate 303 also includes a rotating shaft 309, which is disposed in the direction perpendicular to the length of the ventilation channel 101. Both ends of the rotating shaft 309 are rotatably mounted to the upper part of the ventilation channel 101 via brackets 310. The first bending portion 307 and the second bending portion 308 are respectively connected to the outer wall of the rotating shaft 309, and the rotating shaft 309 is located on the coincident line of the first bending portion 307 and the second bending portion 308. In order for the magnetic block 304 to rotate accurately to the rear of the first bending portion 307 and the second bending portion 308 and attract the first bending portion 307 and the second bending portion 308, the valve mechanism 3 further includes a rotating block 311. The rotating block 311 is mounted on the output shaft of the motor 301, and the magnetic block 304 is fixed on the rotating block 311 and is eccentrically arranged relative to the output shaft of the motor 301.

[0042] More specifically, the rotating block 311 and the magnetic block 304 are both cylindrical, the rotating block 311 is coaxially arranged with the output shaft of the motor 301, and the magnetic block 304 is embedded in the front end of the rotating block 311, and the front end of the rotating block 311 extends to the rear of the magnetic bending plate 303. In this way, the motor 301 drives the rotating block 311 to rotate and drive the magnetic block 304 to rotate, and when the magnetic block 304 is at the lowest point, it is just located behind the first bending part 307 and can be adsorbed to the first bending part 307. When the magnetic block 304 is at the highest point, it is just located behind the second bending part 308 and can be adsorbed to the second bending part 308. The motor 301 rotates by 90°, which can drive the magnetic block 304 to rotate by 90°, so that the magnetic block 304 intermittently adsorbs the first bending part 307 and the second bending part 308.

[0043] In some embodiments, the included angle between the first bending part 307 and the second bending part 308 is obtuse. In this way, the first bending plate and the second bending part 308 can be adsorbed by the magnetic block 304 alone, avoiding interference.

[0044] In order to improve the sealing effect, the valve mechanism 3 further comprises a fixed frame 305, which is fixedly installed in the air exchange channel 101, and the outer wall of the fixed frame 305 is sealingly connected with the inner wall of the air exchange channel 101. The valve plate 302 is arranged on one side of the fixed frame 305, and the valve plate 302 can be rotated to be attached to or separated from the fixed frame 305, so as to close or open the air exchange channel 101. Moreover, a sealing ring can be arranged on the part of the fixed frame 305 in contact with the valve plate 302, and the sealing ring is pressed when the valve plate 302 is attached to the fixed frame 305, further improving the sealing effect.

[0045] The motor 301 is generally installed behind the valve plate 302. As described in the embodiment, the air exchange channel is located behind the fixed frame 305 and is provided with a fixed frame 306, the motor 301 is installed in the fixed frame 306, and the magnetic block 304 can rotate and penetrate the fixed frame 305 and extend to the rear of the magnetic bending plate 303.

[0046] The embodiment of the utility model provides a kind of closed space ventilation and air exchange device is applied to the closed space such as pressure building, when not being ventilated, the motor 301 drives the rotating block 311 rotation, make the magnetic block 304 be located lowest point, at this time, the magnetic block 304 is adsorbed to the first bending part 307 to make the valve plate 302 and the fixed frame 305 adhere, block the air exchange passage 101, to make sealed space keep sealed.When needing ventilation, the motor 301 drives the rotating block 311 rotation 90 °, make the magnetic block 304 be located highest point, at this time, the magnetic block 304 is adsorbed to the second bending part 308 to make the valve plate 302 rotation and the fixed frame 305 separate, open the air exchange passage 101, start the fan 2, ventilation can be realized.

[0047] Embodiment 2

[0048] As Figure 10 The embodiment of the utility model provides a kind of closed space ventilation and air exchange device, including shell 1, fan 2 and valve assembly.Different from embodiment 1, the air exchange passage 101 is straight channel.Specifically, the air exchange passage 101 is the straight channel of horizontal extension.

[0049] In actual application, this closed space ventilation and air exchange device is installed in the wall of one side of closed space such as pressure building.The air exchange passage 101 is close to the end of the wall inboard of the closed space and is the air inlet end, and the fan 2 is installed in the air inlet end.The air exchange passage 101 is close to the end of the wall outboard of the closed space and is the air outlet end, and the valve assembly is installed in the air outlet end.

[0050] In this paper, the front, back, up, down and other orientation words are defined by the position of components in the drawing and the position of components relative to each other, just to express the technical solution clearly and conveniently.It should be understood that they are relative concepts, which can be changed accordingly according to different ways of use and placement, and the use of orientation words should not limit the scope of the application.

[0051] In the case of no conflict, the features of the above embodiments and the embodiments can be combined with each other.The above is only the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc., within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A ventilation and air exchange device for a closed space, characterized in that, include: The outer shell has an internal ventilation channel; A fan is installed at the air intake end of the ventilation channel; The system includes a valve mechanism located at the outlet end of the ventilation channel. The valve mechanism comprises a motor, a magnetic block, a valve plate, and a magnetic bending plate. The magnetic bending plate is rotatably fixed to the upper part of the ventilation channel. The magnetic bending plate includes a first bending portion and a second bending portion that are bent relative to each other. The first bending portion is fixedly connected to the valve plate. The motor is connected to the magnetic block to drive the magnetic block to rotate, so that the magnetic block can attract the first bending portion and the second bending portion respectively, thereby driving the valve to rotate and close or open the ventilation channel.

2. The ventilation and air exchange device for a closed space as described in claim 1, characterized in that: The magnetic bending plate also includes a rotating shaft, which is rotatably installed in the ventilation channel. The first bending portion and the second bending portion are respectively connected to the outer wall of the rotating shaft.

3. A ventilation and air exchange device for a closed space as described in claim 1 or 2, characterized in that: The included angle between the first bend and the second bend is an obtuse angle.

4. The ventilation and air exchange device for a closed space as described in claim 1, characterized in that: The valve mechanism also includes a fixed frame, which is fixedly installed in the ventilation channel. The valve plate is disposed on one side of the fixed frame. The valve plate can rotate to fit or separate from the fixed frame, thereby closing or opening the ventilation channel.

5. A ventilation and air exchange device for a closed space as described in claim 4, characterized in that: A sealing ring is provided on the part of the fixed frame that contacts the valve plate.

6. The ventilation and air exchange device for a closed space as described in claim 1, characterized in that: The valve mechanism further includes a rotating block, which is mounted on the output shaft of the motor, and a magnetic block is fixed on the rotating block and eccentrically disposed relative to the output shaft of the motor.

7. A ventilation and air exchange device for a closed space as described in claim 6, characterized in that: Both the rotating block and the magnetic block are cylindrical. The rotating block is coaxially arranged with the output shaft of the motor. The magnetic block is embedded in the front end of the rotating block, and the front end of the rotating block extends to the rear of the magnetic bending plate.

8. A ventilation and air exchange device for a closed space as described in claim 1, characterized in that: The fan includes a fan body and an air inlet window. The air inlet window is fixedly installed on one side of the outer casing, and the fan body is installed on the air inlet window and connected to the ventilation channel.

9. A ventilation and air exchange device for a closed space as described in claim 1, characterized in that: The ventilation channel is a straight channel.

10. A ventilation and air exchange device for a closed space as described in claim 1, characterized in that: The ventilation channel is a bend channel with at least one bend.

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