CN107561219B - Air detection device - Google Patents
Air detection device Download PDFInfo
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- CN107561219B CN107561219B CN201710777798.4A CN201710777798A CN107561219B CN 107561219 B CN107561219 B CN 107561219B CN 201710777798 A CN201710777798 A CN 201710777798A CN 107561219 B CN107561219 B CN 107561219B
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Abstract
The invention discloses an air detection device, which comprises a detection main body, a frame and a rotating shaft, wherein the detection main body is provided with two opposite side surfaces and an outer peripheral surface for connecting the two side surfaces; the frame is sleeved on the periphery of the detection main body; the rotating shaft is connected with the detection main body and the frame, so that the detection main body can turn around the rotating shaft; the transverse section of the detection main body is divided into m masses by a plane where the rotating shaft is located and perpendicular to the lateral surface of the detection main body1And m2Two parts, wherein m1/m2∈ [1.2, 3.5) ] the technical scheme of the invention is that the detection main body is installed in the frame by rotating the rotating shaft, and the rotating shaft divides the detection main body into two parts with similar quality, when a user turns the detection main body in the frame, the rotation speed of the detection main body is more uniform, the contact between the detection main body and the sensor is smoother, and the detection accuracy of the sensor is higher.
Description
Technical Field
The invention relates to the technical field of air detection, in particular to an air detection device.
Background
The existing air detection device is provided with an air inlet hole on a shell of a detection main body, and outside air can enter the detection main body through the air inlet hole, so that the air detection device can be detected by a sensor arranged in the detection main body.
In this detection mode, the external air can only passively diffuse into the detection body, and the built-in sensor cannot actively contact the external air, so that the detection response time of the built-in sensor is long.
Disclosure of Invention
The invention mainly aims to provide an air detection device, aiming at reducing the response time of air quality detection.
In order to achieve the above object, the present invention provides an air detection device, including:
the detection body is provided with two opposite side surfaces and an outer peripheral surface connecting the two side surfaces;
the frame is sleeved on the periphery of the detection main body and is annularly arranged;
a rotating shaft connecting the detection main body and the frame so that the detection main body can turn around the rotating shaft;
the transverse section of the detection main body is divided into m masses by a plane where the rotating shaft is located and perpendicular to the lateral surface of the detection main body1And m2Two parts, wherein m1/m2∈[1.2，3.5]；
Mass m2The peripheral surface of the detection main body is provided with a data transmission interface;
the magnetic attraction detection device is characterized in that a first magnetic attraction component is arranged on a shell of the detection main body, a second magnetic attraction component is arranged on the frame, and the shell and the frame are matched in a magnetic attraction mode through the first magnetic attraction component and the second magnetic attraction component.
Preferably, be provided with on the frame with the breach of frame disconnection, the both sides of breach correspond the inner wall of frame is all installed the subassembly is inhaled to the second magnetism, first magnetism inhale the subassembly set up in the outer peripheral face of casing, and with the subassembly is inhaled to the second magnetism sets up relatively.
Preferably, the notch is arranged corresponding to a rotation track of the data transmission interface.
Preferably, the first magnetic attraction component is arranged on the mass m1The detection main body part of (1).
Preferably, one side surface of the housing is provided with an air inlet hole, and the outer circumferential surface of the housing is provided with an air outlet hole.
Preferably, m1/m2∈[2，3]。
Preferably, the air detection device is a formaldehyde detector.
According to the technical scheme, the detection main body is rotatably arranged in the frame through the rotating shaft, the rotating shaft divides the detection main body into two parts with similar quality, when a user turns the detection main body in the frame, the rotating speed of the detection main body is more uniform, the detection main body is more smoothly contacted with air and the sensor, and the detection accuracy of the sensor is higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an air detecting device according to an embodiment of the present invention;
FIG. 2 is an exploded view of the air detection assembly of FIG. 1;
FIG. 3 is a mass comparison diagram of the detecting body of the air detecting device in FIG. 1 located at two sides of the rotating shaft;
FIG. 4 is a schematic structural diagram of an air detecting device according to another embodiment of the present invention;
FIG. 5 is a top view of the air detection unit of FIG. 4 in a stowed position;
FIG. 6 is a schematic structural diagram of an air detecting device according to still another embodiment of the present invention;
FIG. 7 is a top view of the air detection unit of FIG. 6 in a stowed position;
fig. 8 is a schematic structural diagram of another embodiment of the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Figures 1 to 7 show a preferred embodiment and a variant embodiment of the air detection device of the invention, with multiple modifications in these embodiments; in the detailed description, each modification thereof is described as an embodiment, and technical features between the following embodiments can be freely combined without structural interference and conflict. Where combinations of features are mutually inconsistent or impractical, such combinations should not be considered as being absent and not within the scope of the claimed invention.
The invention provides an air detection device. The air detection device can be used for detecting formaldehyde (namely a formaldehyde detector), can also be used for detecting CO, and can also be used for detecting CO2Or for detecting NH4 +The method can also be used for detecting methane (gas leakage), PM2.5 and SO2Nitrogen oxide, O3Or for detecting volatile substances such as benzene, phenol, and anthracene.
In the embodiment of the present invention, as shown in fig. 1 to 3, the air detection device 10 includes a detection main body 11, a frame 12, and a rotation shaft 14. Wherein the detection body 11 has two opposite side surfaces X1And connecting two of said side surfaces X1Outer peripheral surface X of2(ii) a The frame 12 is sleeved on the periphery of the detection main body 11. The rotation shaft 14 connects the detection body 11 and the frame 12, so that the detection body 11 can be turned around the rotation shaft 14. The detecting body 11 is located by the rotating shaft 14 and is perpendicular to the side surface X1The detection body 11 is intersected into m masses respectively1And m2Two parts, wherein m1/m2∈[1.2，3.5]。
Specifically, the frame 12 may be provided in a ring shape, and the ring-shaped frame 12 may be a circular ring, a square ring, a triangular ring, a diamond ring, or the like. In addition, the ring frame 12 may be disposed in a semi-ring shape, that is, on the basis of the ring frame 12, a notch 130 is disposed at an edge of the frame 12 (as shown in fig. 6 and 7), so that the ring frame 12 is open-loop (not in a closed ring shape).
The ring frame 12 allows the detection body 11 to be more stably attached and to rotate more smoothly. The semi-annular frame 12 has a notch 130 (see fig. 6 and 7), so that the air detection device 10 can be hung or manually applied.
Referring to fig. 2, the case 11a of the detection body 11 is provided in a pie shape. The housing 11a is provided with a PCB 11b, the PCB 11b is provided with the sensor 11c, and a data transmission interface 13 (which may be a USB interface or a serial interface). The data transmission interface 13 is extended from the shell 11a, and a user can be connected with a mobile phone through the data transmission interface 13, so that the air quality can be conveniently detected in real time.
To make m1/m2∈[1.2，3.5]And even m1/m2∈[2，3]E.g. m1/m2Equal to 1.5, 1.8, 2, 2.5, 2.8, etc., it is important to detect the internal quality of the body 11. Specifically, the position or the mass of the PCB can be adjustedThe mounting position of the sensor 11c or its mass, the mass of the housing 11a itself, the mass and position of the data transmission interface 13. When the above-mentioned several factors are difficult to adjust, a weight member may be added to the housing 11a to achieve mass adjustment.
When the user needs to detect the air quality, the detection body 11 can be manually pushed to rotate, and air can rapidly enter from the air inlet hole 111 of the detection body 11 to contact with the sensor 11 c. Since the amount of outside air flow increases, the response time of the detection body 11 can be reduced, and detection can be performed in time. Furthermore, since the amount of gas is relatively increased, the external gas is sufficiently in contact with the detection body 11, and the accuracy of air detection can be improved, so that the air quality can be detected quickly and accurately.
In addition, since the mass of the detection body 11 is different between the two sides of the rotation shaft 14, when the detection body 11 rotates around the rotation shaft 14, the heavy part rapidly rotates downwards, so that the external air can enter the housing very quickly, thereby further reducing the response time of the detection body.
According to the technical scheme, the detection main body 11 is rotatably arranged in the frame 12 through the rotating shaft 14, the rotating shaft 14 divides the detection main body 11 into two parts with different masses, when a user turns the detection main body 11 in the frame 12, on one hand, external air can rapidly enter the shell to enable the air detection device to rapidly respond, and on the other hand, due to the fact that the masses of the detection main bodies 11 corresponding to the two sides of the rotating shaft 14 are different, when the detection main body 11 is in detection, the swinging speed of the detection main body 11 is higher, the air is more timely in contact with the sensor 11c, and the response time of the air detection device 11 is greatly reduced.
For the ring frame 12, in order to facilitate the data transmission interface not to interfere with the frame when rotating, a part of the housing is usually removed to increase the distance between the housing and the frame, so as to facilitate the installation of the data transmission interface. Here, since a part of the case is missing, the mass thereof is reduced. In view of this, in the present embodiment, the mass is m2The peripheral surface of the detection main body is provided with a data transmission interface. Thus, m can be controlled without separately providing a weight member in the case1And m2A large gap is formed.
In addition, normally, the fixing of the detection body 11 is realized by the data transmission interface 13 abutting against the inner wall of the frame 12, however, this way is not stable on one hand, and on the other hand, the frame 12 is easy to scratch, and on the other hand, the data transmission interface 13 may be damaged. In view of this, in this embodiment, referring to fig. 4 and fig. 5, a first magnetic component 110 is disposed on the housing 11a, a second magnetic component 120 is disposed on the frame 12, and the housing 11a and the frame 12 are magnetically engaged with each other through the first magnetic component 110 and the second magnetic component 120.
There are various ways for the first magnetic assembly 110 and the second magnetic assembly 120 to magnetically attract each other. For example, one of the first magnetic component 110 and the second magnetic component 120 is a magnetic metal (e.g., iron, cobalt, nickel, or an alloy of any two or three of the three), and the other is a magnet. Alternatively, both the first magnetic attraction member 110 and the second magnetic attraction member 120 may be magnets.
It should be noted that, when the first magnetic attraction component 110 is a magnet, the frame 12 may be a magnetic attraction metal component as a whole, or a magnetic attraction metal component as a part, so as to serve as the second magnetic attraction component 120. Similarly, when the second magnetic component 120 is a magnet, the casing 11a of the detecting body 11 can be a magnetic metal component (such as stainless steel) as a whole, or a magnetic metal component as a part to serve as the first magnetic component 110.
The air detection device 10 has a housed state and a deployed state. When the user needs to detect the air quality, the detecting body 11 can be rotated to separate the first magnetic attraction assembly 110 and the second magnetic attraction assembly 120 from the magnetic attraction, and further, the detecting body 11 can swing around the rotating shaft 14. During the swing, outside air may rapidly enter the housing 11a to be detected by the sensor 11 c. After the user uses the air detecting device 10, the detecting body 11 can be rotated to make the first magnetic component 110 and the second magnetic component 120 correspond to each other, so that the detecting body 11 can be positioned in the frame 12 by the magnetic attraction between the first magnetic component 110 and the second magnetic component 120.
Referring to FIG. 6, in the above embodiment, the first magnetThe magnetic attraction component 110 and the second magnetic attraction component 120 can be installed at various positions, such as the frame 12 having upper and lower surfaces (for the ring-shaped frame 12, two ring surfaces representing the frame), and an inner surface X connecting the upper and lower surfaces3. The second magnetic component 120 can be disposed on one of the upper and lower surfaces of the frame 12, and the first magnetic component 110 is disposed on one side surface X of the housing 11a1When the detection body 11 needs to be stored, only the detection body 11 needs to be rotated, so that the first magnetic attraction component 110 and the second magnetic attraction component 120 are adapted to be magnetically attracted. In addition, the first magnetic attraction component 110 can be embedded into the housing 11a, and the second magnetic attraction component 120 can be embedded into the frame 12, or can be exposed. Considering that the main purpose of the first magnetic attraction assembly 110 and the second magnetic attraction assembly 120 is to position the detecting body 11 in the frame 12, in order to make the magnetic attraction effect between the first magnetic attraction assembly 110 and the second magnetic attraction assembly 120 better, in this embodiment, the first magnetic attraction assembly 110 is disposed on the outer peripheral surface X of the housing 11a2The second magnetic component 120 is disposed on the inner surface X of the frame 123. Thus, the area of the first magnetic component 110 corresponding to the area of the second magnetic component 120 is large, so that the magnetic area is large, the magnetic attraction force is strong, and the magnetic attraction effect is better.
On the basis of the above embodiment, when the user rotates the detection body 11 by dialing, the user's hand is hard to apply force. In view of this, referring to fig. 6 and 7, in this embodiment, the frame 12 is provided with a notch 130 for separating the frame 12, the second magnetic assemblies 120 are mounted on the inner walls of the frame 12 corresponding to two sides of the notch 130, and the first magnetic assembly 110 is disposed on the outer peripheral surface X of the housing 11a2And is disposed opposite to the second magnetic attraction component 120. In this manner, the urging force of the user on the detection main body 11 is facilitated.
Referring to fig. 8, on the basis of the previous embodiment, in order to facilitate the data transmission interface 13 to plug the mobile phone when the detection main body is swung, in this embodiment, the notch 130 is disposed corresponding to a rotation track of the data transmission interface 13. That is, when the detecting body 11 is in the accommodating state, the second magnetic attraction element 120 around the notch 130 and the first magnetic attraction element 110 on the outer peripheral surface X2 of the housing 11a can be magnetically attracted and positioned with each other. When the user needs to activate the air detection apparatus 10, a downward force may be applied to the notch 130, so that the detection main body 11 swings downward. After the swing of the main body 11 to be detected is finished, the user can rotate the data transmission interface 13 to the position of the notch 130, when the data transmission interface 13 is inserted into the mobile phone, the notch 130 can clamp the mobile phone, so that the air detection device 10 is more stably connected with the mobile phone, the user only needs to hold the air detection device 11 by hand, the mobile phone and the air detection device 10 do not need to be held simultaneously, and the whole detection process is very convenient.
For the installation position of the first magnetic attraction component 110, it can be installed at m1The corresponding detection main body 11 part can be installed on m2The corresponding detection body 11 portion. In contrast, in order to make the detection main body 11 more stably accommodated in the frame 12 (the detection main body 11 will not automatically turn over due to the magnetic attraction force of the first magnetic assembly 110 and the second magnetic assembly 120 caused by slight shake), in this embodiment, the first magnetic assembly 110 is disposed at a position with a mass m1Outer peripheral surface X of the detection body 11 portion2。
In a preferred embodiment, referring to fig. 4, in order to facilitate the external air to enter into the housing, the housing 11a has an air inlet hole 111 and an air outlet hole 111', the air inlet hole 111 being disposed on one side surface X thereof1The air outlet 111' is arranged on the outer peripheral surface X of the shell 11a2。
In the above embodiment, only in the case where the air intake holes 111 are provided in the housing 11a, the flow rate of the outside air flowing into the housing 11a is slow, thus affecting the response speed of the air detection device 10. If set up venthole 111 'on casing 11a, when detecting main part 11 and rotating, outside air can follow inlet port 111 and get into casing 11a in, and the air in the casing 11a can flow out from venthole 111', so greatly increased the inside and outside gas convection effect of casing 11a, the response speed of air detection main part 11 to and the detection precision will promote greatly.
Of course, to avoid the inside of the housing 11aThe air flow is discharged and then enters the housing 11a from the air inlet hole 111, and the larger the distance between the air inlet hole 111 and the air outlet hole 111', the better. Namely: the air outlet hole 111' is opposite to the air inlet hole 111, that is, the air inlet hole 111 is arranged on one side surface X of the shell 11a1The air outlet hole 111' is arranged on the other side surface X1. Thus, when external air enters the housing 11a, the air in the housing 11a can flow out from the air outlet 111' quickly, and after the external air enters the housing 11a, the external air cannot be influenced by the original air in the housing 11a, so that the detection accuracy of the detection main body 11 is higher.
Although the air outlet hole 111 'is disposed opposite to the air inlet hole 111 to prevent air leakage (the air flow in the housing 11a flows out and then enters the housing 11a through the air inlet hole 111), if the air outlet hole 111' is disposed on one side surface X1When the detecting body 11 rotates, the air inlet hole 111 and the air outlet hole 111' are both in the windward state. Therefore, the airflow in the housing 11a is less likely to flow out, and the outside airflow is less likely to enter the housing 11 a. In view of this, in the present embodiment, the intake holes 111 are provided in the side surface X of the housing 11a1The air outlet 111' is arranged on the outer peripheral surface X of the shell 11a2. Thus, when the detection body 11 rotates, the side surface X1The air flows into the housing 11a along the air inlet holes 111 and the air in the housing 11a flows along the air outlet holes 111' from the outer peripheral surface X2And the air flow is subjected to small air resistance in the flowing-out process.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. An air detection device, comprising:
the detection body is provided with two opposite side surfaces and an outer peripheral surface connecting the two side surfaces; a PCB circuit board is arranged in a shell of the detection main body, a sensor for detecting air quality and a data transmission interface are arranged on the PCB circuit board, and the data transmission interface extends out of the shell and is used for being connected with a mobile phone;
the frame is sleeved on the periphery of the detection main body and is annularly arranged;
a rotating shaft connecting the detection main body and the frame so that the detection main body can turn around the rotating shaft;
the transverse section of the detection main body is divided into m masses by the plane where the rotating shaft is located and vertical to the side surface1And m2Two parts, wherein m1/m2∈[1.2，3.5]；
Mass m2The peripheral surface of the detection main body is provided with a data transmission interface;
the magnetic attraction detection device is characterized in that a first magnetic attraction component is arranged on a shell of the detection main body, a second magnetic attraction component is arranged on the frame, and the shell and the frame are matched in a magnetic attraction mode through the first magnetic attraction component and the second magnetic attraction component.
2. The air detection device of claim 1, wherein the frame is provided with a gap for disconnecting the frame, the second magnetic attraction assemblies are mounted on the inner wall of the frame corresponding to two sides of the gap, and the first magnetic attraction assembly is disposed on the outer peripheral surface of the housing and opposite to the second magnetic attraction assembly.
3. The air detection device of claim 2, wherein the notch is disposed to correspond to a rotational trajectory of the data transmission interface.
4. The air detection device of claim 1, wherein the first magnetic assembly is disposed at a mass m1The detection main body part of (1).
5. The air detection device as claimed in claim 1, wherein one side surface of the housing is provided with an air inlet hole, and an outer circumferential surface of the housing is provided with an air outlet hole.
6. The air detection system of claim 1, wherein m is m1/m2∈[2，3]。
7. The air detection device of any one of claims 1-6, wherein the air detection device is a formaldehyde detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710777798.4A CN107561219B (en) | 2017-08-31 | 2017-08-31 | Air detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710777798.4A CN107561219B (en) | 2017-08-31 | 2017-08-31 | Air detection device |
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| CN107561219A CN107561219A (en) | 2018-01-09 |
| CN107561219B true CN107561219B (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710777798.4A Active CN107561219B (en) | 2017-08-31 | 2017-08-31 | Air detection device |
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