Anti-interference negative oxygen ion sensing device

Abstract

The invention discloses an anti-interference negative oxygen ion sensing device which comprises a base and a supporting frame connected to the base, and the base is further connected with a negative oxygen ion sensing body. A dustproof net cylinder and a flow guide protection assembly are arranged on the base, an air extracting pump is further arranged on the supporting frame, and an annular top cover used for shielding the air extracting pump is further connected to the top end of the supporting frame; the flow guide protection assembly comprises a plurality of circular-truncated-cone-shaped guide ring pieces, the top end openings of the circular-truncated-cone-shaped guide ring pieces are small, the bottom end openings of the circular-truncated-cone-shaped guide ring pieces are large, and every two adjacent circular-truncated-cone-shaped guide ring pieces are connected through at least three connecting columns. According to the invention, the dustproof net cylinder and the diversion protection assembly can form a full-surrounding protection layer outside the negative oxygen ion sensing body, so that a dust attachment dead angle area is eliminated; the radial section of each circular-truncated-cone-shaped guide ring piece is of a gradually-shrunk streamline structure which can reduce air inlet resistance, guarantee air circulation and effectively prevent external dust and impurities from entering the dustproof net cylinder, and therefore airflow disturbance and influences of the dust and impurities can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of negative oxygen ion sensing devices, and particularly relates to an anti-interference negative oxygen ion sensing device. Background Art

[0002] A negative oxygen ion sensor is a device used to detect the concentration of negative oxygen ions (such as negatively charged oxygen molecules like O2 - or O3 - etc.) in the air. Negative oxygen ions are known as "air vitamins" due to their positive effects on human health, the ecological environment, and air quality, and are widely used in fields such as smart homes, healthcare, eco-tourism areas, meteorological environmental protection, etc.

[0003] Currently, to improve the monitoring accuracy, negative oxygen ion sensors in the prior art usually adopt temperature and humidity compensation algorithms to reduce the interference of environmental temperature and humidity changes on the measurement results. However, in terms of structural design, most existing sensors are directly exposed to the monitoring environment to achieve natural air exchange. Although this open design can meet the air flow exchange requirements, it also has the following technical defects: 1. Insufficient anti-interference ability: When the sensor is directly exposed to the external environment, it is easily affected by air flow disturbances and impurities such as dust, resulting in poor stability of the monitoring data, and the measurement accuracy may be reduced due to pollutant deposition during long-term use; 2. Inconvenient maintenance and replacement: The structural design of existing sensors usually adopts a fixed installation method, and the sensor body needs to be disassembled as a whole for maintenance or replacement. Lack of a quick disassembly and assembly structure leads to low maintenance efficiency, affecting the long-term reliability and use convenience of the device. Summary of the Invention

[0004] The main purpose of the present invention is to provide an anti-interference negative oxygen ion sensing device, which can effectively solve the problems in the background art, taking into account the air flow exchange efficiency, anti-environment (dust and impurities) interference ability, and modular maintenance convenience.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] An anti-interference negative oxygen ion sensing device, including a base and a support frame connected to the base, and a negative oxygen ion sensing body located inside the support frame is also connected to the base;

[0007] A dust-proof net cylinder and a flow guiding and protecting component located outside the support frame are sequentially arranged on the base from the inside to the outside, an air extraction pump is also arranged on the support frame above the dust-proof net cylinder and the flow guiding and protecting component, and an annular top cover for shielding the air extraction pump is connected to the top end of the support frame;

[0008] The diversion protection component includes a number of frustum-shaped guide ring pieces arranged closely one above the other. The frustum-shaped guide ring pieces are arranged with a small opening at the top end and a large opening at the bottom end. At least three connecting columns are used to connect between two adjacent frustum-shaped guide ring pieces.

[0009] Further, the top end part of the lower frustum-shaped guide ring piece among two adjacent frustum-shaped guide ring pieces is located inside the bottom end part of the upper frustum-shaped guide ring piece.

[0010] Further, the support frame includes an upper fixed ring seat and a lower fixed ring seat located below the upper fixed ring seat. A circulation port penetrating through the upper and lower ends is opened in the middle of the upper fixed ring seat. The lower fixed ring seat is detachably connected to the base;

[0011] The support frame further includes a number of support columns. The bottom ends of the support columns pass through the upper fixed ring seat and are connected to the lower fixed ring seat. The top ends of the support columns are connected to the annular top cover;

[0012] The air extraction pump is fixedly installed on the upper fixed ring seat, and the input end of the air extraction pump is communicated with the circulation port.

[0013] Further, a rotary cover ring is threadedly connected to the upper fixed ring seat. The rotary cover ring is used to limit the height positions of the dust-proof net cylinder and the diversion protection component.

[0014] Further, a number of rotary anti-slip protrusions are arranged on the outer ring surface of the rotary cover ring.

[0015] Further, a number of fixed connection holes are arranged on the circumferential surface of the lower fixed ring seat;

[0016] A number of fixed threaded holes corresponding to the number of fixed connection holes are opened at the top end of the base;

[0017] It further includes a number of fixing screws. The bottom ends of the fixing screws pass through the fixed connection holes and are threadedly connected to the corresponding fixed threaded holes.

[0018] Further, a plug socket located inside the support frame is provided in the middle of the top end of the base;

[0019] The bottom end of the negative oxygen ion sensing body has a plug head that can be electrically connected to the plug socket.

[0020] Further, a hand-held handle is connected between the negative oxygen ion sensing body and the plug head.

[0021] Further, a collection trough opening corresponding to the output end of the air extraction pump is opened at the bottom end of the annular top cover. A number of dispersion trough channels arranged along the radial direction of the annular top cover are opened in the circumferential direction of the collection trough opening. The dispersion trough channels penetrate through the outer ring end face of the annular top cover.

[0022] Furthermore, the channel depth at the outer end of the dispersion channel gradually increases from the inside to the outside along the radial direction of the annular top cover.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. In the present invention, the dust-proof net cylinder and the flow guiding and protecting component can form a fully enclosed protective layer outside the negative oxygen ion sensing body, eliminating the dead angle area of dust adhesion; the design of multiple frustum-shaped guiding ring pieces can reduce the air flow turbulence degree and improve the detection accuracy; the radial cross-section of the frustum-shaped guiding ring piece is a gradually shrinking streamline structure, which can not only reduce the intake resistance and ensure the air circulation, but also effectively prevent external dust and impurities from entering the dust-proof net cylinder. Thus, the influence of air flow disturbance and dust and impurities can be reduced.

[0025] 2. In the present invention, the connection between the rotating cover ring and the upper fixed ring seat can ensure the stability of the dust-proof net cylinder and the flow guiding and protecting component, preventing them from accidentally shaking; by detaching the rotating cover ring from the upper fixed ring seat, the dust-proof net cylinder and the flow guiding and protecting component can be disassembled and assembled for corresponding replacement and cleaning to ensure the high-efficiency protective effect against dust and impurities; through the cooperation of the plug joint and the socket, the operator can hold the handle to disassemble and assemble the negative oxygen ion sensing body, so as to calibrate and maintain the negative oxygen ion sensing body according to the monitoring environment (temperature and humidity).

[0026] 3. In the present invention, through the design of the annular top cover, the waste gas is output from the top of the air extraction pump and will first directly flow to the collecting trough opening, and then quickly disperse to the outside through the setting of the dispersion channel. In this way, the coherence of air circulation can be improved. The tail of the dispersion channel is lifted upward, which can divert the waste gas upward. Thus, the gas that has been detected can be reduced from flowing back to the flow guiding and protecting component for detection again in a short time. In this way, the incompleteness of monitoring can be avoided, and the effectiveness, comprehensiveness and scientificity of monitoring data can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of an anti-interference negative oxygen ion sensing device of the present invention;

[0028] Figure 2 is a schematic diagram of the installation structure of an anti-interference negative oxygen ion sensing device of the present invention;

[0029] Figure 3 is a sectional view of the installation of an anti-interference negative oxygen ion sensing device of the present invention;

[0030] Figure 4 is a schematic diagram of the structure of the upper fixed ring seat of an anti-interference negative oxygen ion sensing device of the present invention;

[0031] Figure 5Schematic three-dimensional structure diagram of the flow guiding and protection component of an anti-interference negative oxygen ion sensing device according to the present invention;

[0032] Figures 6 - 7 Schematic structure diagram of the annular top cover of an anti-interference negative oxygen ion sensing device according to the present invention.

[0033] In the figure: 1, base; 2, flow guiding and protection component; 21, frustum-shaped guide ring piece; 22, connecting column; 3, upper fixed ring seat; 4, support column; 5, annular top cover; 6, rotating cover ring; 7, air extraction pump; 8, negative oxygen ion sensing body; 9, hand-held handle; 10, plug connector; 11, fixing screw; 12, lower fixed ring seat; 13, dust-proof net cylinder; 14, plug socket; 15, through hole; 16, rotating anti-slip protrusion; 17, collecting groove opening; 18, dispersing groove channel. Detailed implementation manners

[0034] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0035] As Figures 1 - 7 shown, an anti-interference negative oxygen ion sensing device includes a base 1 and a support frame connected to the base 1, and a negative oxygen ion sensing body 8 located inside the support frame is also connected to the base 1;

[0036] A dust-proof net cylinder 13 and a flow guiding and protection component 2 are sequentially arranged on the base 1 from inside to outside and located outside the support frame, and an air extraction pump 7 is also arranged on the support frame above the dust-proof net cylinder 13 and the flow guiding and protection component 2, and an annular top cover 5 for shielding the air extraction pump 7 is further connected to the top end of the support frame;

[0037] The flow guiding and protection component 2 includes a plurality of frustum-shaped guide ring pieces 21 arranged closely up and down. The frustum-shaped guide ring pieces 21 are arranged with a small opening at the top end and a large opening at the bottom end, and at least three connecting columns 22 are used to connect between two adjacent frustum-shaped guide ring pieces 21.

[0038] In this embodiment, as Figure 1 shown, a gap or spacing is formed between the annular top cover 5 and the air extraction pump 7. In order to achieve the effect of shielding the air extraction pump 7, the outer diameter of the annular top cover 5 can be larger than the outer diameter of the support frame. The input end of the air extraction pump 7 is located at its bottom end, and the output end of the air extraction pump 7 is located at its top end.

[0039] During application, the air extraction pump 7 is started, and external air is guided by the negative pressure air flow from the bottom openings of several frustum-shaped guide ring pieces 21, and then flows into the negative oxygen ion sensing body 8 after being filtered by the dust-proof net cylinder 13 to remove impurity dust for corresponding detection. The exhaust gas after detection then flows out of the output end of the air extraction pump 7 to the outside. Among them, the dust-proof net cylinder 13 and the diversion protection component 2 can form a fully enclosed protection layer outside the negative oxygen ion sensing body 8 to eliminate the dead corner area where dust adheres; the design of multiple frustum-shaped guide ring pieces 21 can reduce the air flow turbulence and improve the accuracy of detection; the radial cross-section of the frustum-shaped guide ring piece 21 is in a gradually shrinking streamline structure, which can not only reduce the intake resistance and ensure the air circulation, but also effectively prevent external dust impurities from entering the dust-proof net cylinder 13. In this way, the influence of air flow disturbance and dust impurities can be reduced.

[0040] Preferably, the top end of the lower frustum-shaped guide ring piece 21 among two adjacent frustum-shaped guide ring pieces 21 is located inside the bottom end of the upper frustum-shaped guide ring piece 21.

[0041] With such a setting, the interference of external dust impurities can be further protected. Correspondingly, to ensure the reliability of air circulation, the power of the air extraction pump 7 can be increased.

[0042] Preferably, the support frame includes an upper fixed ring seat 3 and a lower fixed ring seat 12 located below the upper fixed ring seat 3. A through hole 15 is provided in the middle of the upper fixed ring seat 3, which penetrates through its upper and lower ends. The lower fixed ring seat 12 is detachably connected to the base 1;

[0043] The support frame further includes several support columns 4. The bottom ends of the support columns 4 pass through the upper fixed ring seat 3 and are connected to the lower fixed ring seat 12, and the top ends of the support columns 4 are connected to the annular top cover 5;

[0044] The air extraction pump 7 is fixedly installed on the upper fixed ring seat 3, and the input end of the air extraction pump 7 is communicated with the through hole 15.

[0045] In this embodiment, as Figure 2 and Figure 4 shown, the support frame can be provided with three support columns 4. Through the arrangement of the upper fixed seat 3, the lower fixed ring seat 12 and the support columns 4, firstly, the dust-proof net cylinder 13 and the diversion protection component 2 can be supported, and secondly, it is convenient for external air to uniformly perform electrode detection with the negative oxygen ion sensing body 8.

[0046] Preferably, a rotating cover ring 6 is threadedly connected to the upper fixed ring seat 3, and the rotating cover ring 6 is used to limit the height position of the dust-proof net cylinder 13 and the diversion protection component 2.

[0047] With such a setting, first, the connection between the rotary cover ring 6 and the upper fixed ring seat 3 can ensure the stability of the dust-proof net cylinder 13 and the diversion protection assembly 2, preventing them from accidentally shaking; second, by detaching the rotary cover ring 6 from the upper fixed ring seat 3, the dust-proof net cylinder 13 and the diversion protection assembly 2 can be disassembled and assembled for corresponding replacement and cleaning to ensure the efficient protection against dust and impurities.

[0048] Preferably, several rotary anti-slip protrusions 16 are provided on the outer ring surface of the rotary cover ring 6 for facilitating the rotation of the rotary cover ring 6.

[0049] Preferably, several fixed connection holes are provided on the circumferential surface of the lower fixed ring seat 12 for facilitating the disassembly and assembly of the support frame and the base 1.

[0050] Several fixed threaded holes corresponding to the several fixed connection holes are provided at the top end of the base 1.

[0051] It further includes several fixing screws 11, and the bottom end of the fixing screw 11 passes through the fixed connection hole and is threadedly connected to the corresponding fixed threaded hole.

[0052] Preferably, a socket 14 located inside the support frame is provided in the middle of the top end of the base 1 for facilitating the disassembly and assembly of the negative oxygen ion sensing body 8.

[0053] The bottom end of the negative oxygen ion sensing body 8 has a plug connector 10 that can be electrically connected to the socket 14.

[0054] Preferably, a hand-held handle 9 is connected between the negative oxygen ion sensing body 8 and the plug connector 10. The operator can assemble and disassemble the negative oxygen ion sensing body 8 by applying force to the hand-held handle 9 to facilitate the calibration and maintenance of the negative oxygen ion sensing body 8 according to the monitoring environment (temperature and humidity).

[0055] Preferably, a collecting groove opening 17 corresponding to the output end of the air extraction pump 7 is provided at the bottom end of the annular top cover 5, and several dispersion channel openings 18 arranged radially along the annular top cover 5 are provided in the circumferential direction of the collecting groove opening 17, and the dispersion channel openings 18 penetrate through the outer ring end face of the annular top cover 5.

[0056] In this embodiment, the waste gas is output from the top end of the air extraction pump 7 and will first directly flow to the collecting groove opening 17 and then be quickly dispersed to the outside through the arrangement of the dispersion channel openings 18. With such a setting, the coherence of air circulation in this embodiment can be improved.

[0057] Preferably, the channel depth at the outer end of the dispersion channel opening 18 gradually deepens from inside to outside along the radial direction of the annular top cover 5.

[0058] In this embodiment, as Figure 7As shown, the tail of the dispersion channel 18 is lifted upward, which can divert the exhaust gas upward. In this way, the gas that has been detected can be reduced from flowing back to the diversion protection component 2 for detection again in a short time. Thus, the incompleteness of monitoring can be avoided, and the effectiveness, comprehensiveness, and scientific nature of the monitoring data can be improved.

[0059] The circuits, electronic components, and control modules involved are all prior arts and can be fully realized by those skilled in the art without further elaboration. The content protected by the present invention does not involve improvements to software and methods either.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An anti-interference negative oxygen ion sensing device, characterized in that: It includes a base (1) and a support frame connected to the base (1). A negative oxygen ion sensing body (8) located inside the support frame is also connected to the base (1). A dust-proof net cylinder (13) located outside the support frame and a diversion protection component (2) are sequentially arranged on the base (1) from the inside to the outside. An air extraction pump (7) located above the dust-proof net cylinder (13) and the diversion protection component (2) is also arranged on the support frame. An annular top cover (5) for shielding the air extraction pump (7) is connected to the top end of the support frame. The diversion protection component (2) includes a plurality of frustum-shaped guide ring pieces (21) arranged closely one above the other. The frustum-shaped guide ring pieces (21) are arranged with a small opening at the top end and a large opening at the bottom end. At least three connecting columns (22) are used to connect between two adjacent frustum-shaped guide ring pieces (21).

2. The anti-interference negative oxygen ion sensing device according to claim 1, wherein: The top end part of the lower frustum-shaped guide ring piece (21) among two adjacent frustum-shaped guide ring pieces (21) is located inside the bottom end part of the upper frustum-shaped guide ring piece (21).

3. The anti-interference negative oxygen ion sensing device according to claim 1, wherein: The support frame includes an upper fixed ring seat (3) and a lower fixed ring seat (12) located below the upper fixed ring seat (3). A through hole (15) penetrating through its upper and lower ends is opened in the middle of the upper fixed ring seat (3). The lower fixed ring seat (12) is detachably connected to the base (1). The support frame further includes a plurality of support columns (4). The bottom ends of the support columns (4) pass through the upper fixed ring seat (3) and are connected to the lower fixed ring seat (12). The top ends of the support columns (4) are connected to the annular top cover (5). The air extraction pump (7) is fixedly installed on the upper fixed ring seat (3), and the input end of the air extraction pump (7) is communicated with the through hole (15).

4. The anti-interference negative oxygen ion sensing device according to claim 3, wherein: A rotating cover ring (6) is threadedly connected to the upper fixed ring seat (3). The rotating cover ring (6) is used to limit the height positions of the dust-proof net cylinder (13) and the diversion protection component (2).

5. An anti-interference negative oxygen ion sensing device according to claim 4, characterized in that: A plurality of rotating anti-slip protrusions (16) are arranged on the outer ring surface of the rotating cover ring (6).

6. The anti-interference negative oxygen ion sensing device according to claim 3, wherein: A plurality of fixed connection holes are arranged on the circumferential surface of the lower fixed ring seat (12). A plurality of fixed threaded holes corresponding to the plurality of fixed connection holes are respectively opened at the top end of the base (1). A plurality of fixing screws (11) are further included. The bottom ends of the fixing screws (11) pass through the fixed connection holes and are threadedly connected to the corresponding fixed threaded holes.

7. An anti-interference negative oxygen ion sensing device according to claim 1, characterized in that: A socket (14) located inside the support frame is provided in the middle of the top end of the base (1). The bottom end of the negative oxygen ion sensing body (8) has a plug connector (10) that can be electrically connected to the socket (14).

8. An anti-interference negative oxygen ion sensing device according to claim 7, characterized in that: A hand-held handle (9) is connected between the negative oxygen ion sensing body (8) and the plug connector (10).

9. An anti-interference negative oxygen ion sensing device according to claim 1, characterized in that: A collection trough opening (17) corresponding to the output end of the air extraction pump (7) is opened at the bottom end of the annular top cover (5). A plurality of dispersion trough channels (18) arranged along the radial direction of the annular top cover (5) are circumferentially opened in the collection trough opening (17). The dispersion trough channels (18) penetrate through the outer ring end surface of the annular top cover (5).

10. An anti-interference negative oxygen ion sensing device according to claim 9, characterized in that: The channel depth at the outer end of the dispersion trough channel (18) gradually deepens from the inside to the outside along the radial direction of the annular top cover (5).

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