CN112858118B - Be used for indoor environment particulate matter detection device - Google Patents

Abstract

The invention discloses a device for detecting indoor environment particulate matter, which is characterized in that a cleaning cavity communicated with a detection cavity is arranged on a detection machine body, a cleaning component is detachably and hermetically arranged in the cleaning cavity, the detection cavity is communicated with an air inlet head through a detection air passage, a detection component for detecting particulate matter is arranged in the detection cavity, and a cleaning end of the cleaning component can extend into the detection component of the detection cavity so as to clean the detection component and the inner wall of the detection cavity, so that a detection device and the detection cavity of the detection component are effectively cleaned, the cleaning effect is ensured, and the detection accuracy is improved; when the cleaning assembly is used for cleaning, the cleaning air pumping and spraying pump of the cleaning assembly can be switched intermittently between pumping and spraying so as to realize periodic change cleaning of pumping and spraying air flow, the cleaning efficiency can be ensured, and the cleaning effect on the detection device and the inner wall of the detection cavity is improved.

Description

A device for detecting particulate matter in an indoor environment

technical field

The invention relates to the technical field of indoor environment detection equipment, in particular to a device for detecting particulate matter in an indoor environment.

Background technique

The quality of indoor environment is closely related to health. Therefore, environmental protection is paid more and more attention by people. As people pay more and more attention to air quality, there are more and more requirements for the detection of air particles. Therefore, the indoor air quality needs to be detected by an environmental particle detection device. When it is necessary to use the particle detection device for indoor environment, since the support frame at the bottom of the existing detection device is fixed by bolt locking or welding, it is inconvenient to quickly disassemble when it is not needed for detection, and the overall footprint is large , and is not conducive to transportation. Moreover, the current detection devices generally use optics for detection. However, after multiple detections, the detection device inside the device and the detection wall are prone to dust. These dust particles will reduce the subsequent detection accuracy of the detection device and affect the detection accuracy. .

Contents of the invention

Technical solutions

The present invention is achieved through the following technical solutions: the present invention proposes a detection device for indoor environmental particulates, including a detection body, a rotating and dismounting device, an auxiliary fixing mechanism and a triangular support frame, wherein the rotating and dismounting device is arranged at the bottom of the detection body In the middle of the end, the auxiliary fixing mechanism is arranged on the top surface of the triangular support frame, and the rotation and removal device and the auxiliary fixing mechanism can be rotated to realize locking, loosening and disassembly. The upper end of the detection body is provided with an air The entrance head is characterized in that the detection body is provided with a cleaning chamber communicating with the detection chamber, the detachable seal in the cleaning chamber is provided with a cleaning assembly, and the detection chamber is connected to the air inlet head through the detection airway connected, the detection chamber is provided with a detection component for detecting particles, and the cleaning end of the cleaning component can extend into the detection component of the detection cavity, so as to clean the detection component and the inner wall of the detection cavity processing; also includes blockage, when the detection device detects, the blockage can be blocked at the outer port of the detection chamber, so as to replace the cleaning assembly to block and seal the detection chamber, the detection The lower end of the cavity is also provided with an air outlet.

Further, preferably, the cleaning assembly includes an upper cleaning part and a lower cleaning part, the upper cleaning part is arranged upward in the detection chamber, and the lower cleaning part is arranged downward in the detection chamber, wherein , both the upper cleaning part and the lower cleaning part can be cleaned by means of pumping and spraying.

Further, preferably, the cleaning assembly includes an outer ferrule, an outer sealing sleeve, an inner sealing sleeve, an air extraction column, an upper cleaning component, and a lower cleaning component, wherein the outer ferrule is fixed on the end of the air extraction column part, and the center of the pumping jet column is provided with a pumping jet channel, the outer ferrule is provided with a clean jet pump communicating with the pumping jet channel, and the outer end of the pumping jet column is fixedly sleeved with the As for the outer sealing sleeve, the inner end fixing sleeve of the pumping jet column is provided with the inner sealing sleeve, the inner sealing sleeve and the outer sealing sleeve are arranged against the inner side and the outer side of the detection chamber, and the inner sealing sleeve The sealing sleeve is provided with a communication hole that communicates with the detection chamber and the detection airway, and the position between the outer sealing sleeve and the inner sealing sleeve is provided with the upper cleaning part and the lower cleaning part. An upper air injection chamber is surrounded between the parts and the air extraction column, and a lower air injection chamber is enclosed between the lower cleaning part and the air extraction column. Both the upper cleaning part and the lower cleaning part are provided with There are suction and ejection holes facing the inner wall of the detection chamber.

Further, as a preference, an upper sliding sleeve is provided on the upper wall of the detection chamber, and a lower sliding sleeve is provided on the lower wall of the detection chamber, and the blocking and cleaning components are slidably matched with the upper sliding sleeve and the lower sliding sleeve. set.

Further, as a preference, the detection component includes an upper light emitter and a lower light receiver, the upper light emitter and the lower light receiver are arranged opposite up and down, and the cleaning component is located on the upper light emitter and the lower light receiver between.

Further, preferably, when the cleaning assembly is cleaning, the cleaning suction jet pump of the cleaning assembly can intermittently switch between suction and spraying, so as to achieve periodic switching of the suction and jet airflow for cleaning.

Further, as a preference, a display screen is fixedly installed at the upper left end of the front part of the detection body; the rotating dismounting device is composed of a rotating disc, a chute, a sliding column, a sliding rod, a rod groove and a rotating member, and the middle part of the top of the rotating disc passes through A chute is provided, the surface of the inner diameter of the chute is slidingly matched with the sliding post, and the sliding post is integrally connected with the inner side of the top surface of the sliding rod, the sliding rod is slidingly fitted along the inner diameter surface of the rod groove, and the bottom of the rod groove The middle part of the end is rotatably matched with the rotating part, and the rotating disk is locked and fixed with the middle part of the bottom end of the detection body.

Further, as a preference, an indicator light is provided at the lower left end of the front part of the detection body, a controller is fixedly installed at the upper right end of the front part of the detection body, the middle part of the top end of the detection body is connected to a connecting pipe, and the connecting pipe is connected to the air The middle part of the bottom end of the entry head is connected with each other, the left bottom of the detection body is connected with the power line, the bottom of the detection body is provided with a triangular support frame, and the detection body, display screen, indicator light and power line are all connected with the controller. electrical connection.

Further, preferably, the auxiliary fixing mechanism includes a main body, a circular groove, a cross groove and an insertion groove, a circular groove is embedded in the middle part of the top end of the main body, a cross groove is embedded in the middle part of the top end of the circular groove, and the inner four corners of the cross groove are embedded There is an insertion groove, the inner diameter surface of the circular groove is engaged with the rotating disc, the inner diameter surface of the cross groove is engaged with the rod groove, and the inner diameter surface of the insertion groove is slidably engaged with the sliding rod.

Further, preferably, the chute is in the shape of a semi-arc and is distributed in a ring shape, the inner bottom of the cross groove is provided with a rotating groove, and the rotating groove is rotatably matched with the rotating member, and there are four sets of insertion grooves, and It is distributed in pairs.

(3) Beneficial effects

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

(1) A kind of detection device for indoor environmental particulate matter provided by the present invention is provided with a cleaning chamber communicated with the detection chamber on the detection body, and the detachable seal in the cleaning chamber is provided with a cleaning assembly, and the detection chamber passes through the detection chamber. The air passage communicates with the air inlet head, and a detection component for detecting particulate matter is arranged in the detection cavity, and the cleaning end of the cleaning component can extend into the detection component of the detection cavity, so as to clean the detection component and the detection component. The inner wall of the detection chamber is cleaned to effectively clean the detection device and the detection chamber of the detection component, ensure the cleaning effect, and improve the detection accuracy;

(2) The present invention also includes blockage. When the detection device performs detection, the blockage can be blocked at the outer port of the detection chamber, so as to replace the cleaning component to block and seal the detection chamber, The lower end of the detection chamber is also provided with an air outlet to ensure normal detection and improve detection efficiency;

(3) When the cleaning assembly of the present invention is cleaning, the cleaning suction jet pump of the cleaning assembly can intermittently switch between suction and injection, so as to realize the periodic change of cleaning with the suction and injection airflow, which can ensure the efficiency of cleaning, Improve the cleaning effect on the detection device and the inner wall of the detection chamber;

(4) The present invention solves the problem that when it is necessary to use the indoor environment particle detection device, since the support frame at the bottom of the existing detection device is fixed by bolt locking or welding, it is inconvenient to perform fast detection when it is not necessary to use the detection device. Disassembly, the overall space occupation is large, and it is not conducive to transportation. By installing the rotating disassembly device in the middle of the bottom end of the detection body, the rotating disc can be driven by force on the box to rotate, and the sliding column and the chute are slidingly matched. Drive the sliding rod to slide out and fix from the rod groove, which is convenient to disassemble and easy to carry; by setting the auxiliary fixing mechanism on the top surface of the triangular support frame, it can be fixed by the rotating disc and the circular groove, and can be fixed by the rod groove and the cross groove It is fixed to realize the insertion and cooperation of the sliding rod and the insertion groove, which has strong stability and is convenient for fixing.

Description of drawings

Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic structural view of the auxiliary fixing mechanism of the present invention;

Fig. 3 is a schematic diagram of the internal structure of the auxiliary fixing mechanism of the present invention;

Fig. 4 is a structural schematic diagram of a top view of the rotating and dismounting device of the present invention;

Fig. 5 is a structural schematic diagram of the bottom of the rotating and dismantling device of the present invention.

Fig. 6 is a schematic diagram of the installation structure of the cleaning assembly of the present invention when cleaning;

Fig. 7 is a structural schematic view of the plugging installation of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Please refer to Figures 1-7, the present invention provides a particle detection device for indoor environment: including a detection body 1, a rotating and disassembling device 8, an auxiliary fixing mechanism 9 and a tripod support frame 10, wherein the rotating and disassembling device 8 is arranged on Detect the middle part of the bottom end of the body 1, the auxiliary fixing mechanism 9 is arranged on the top surface of the tripod 10, and the rotating disassembly device 8 and the auxiliary fixing mechanism 9 can be rotated to realize locking, loosening and disassembly, so The upper end of the detection body is provided with an air inlet head 6, which is characterized in that the detection body is provided with a cleaning chamber communicated with the detection chamber 12, and the detachable seal in the cleaning chamber is provided with a cleaning assembly 7, and the detection The cavity 12 communicates with the air inlet head through the detection air passage 10, a detection component for detecting particulate matter is arranged in the detection cavity, and the cleaning end of the cleaning component 7 can extend into the detection component of the detection cavity, In order to clean the detection assembly and the inner wall of the detection chamber; it also includes a blockage 23, when the detection device performs detection, the blockage can be blocked at the outer port of the detection chamber, so as to replace the cleaning Component 7 is used to block and seal the detection chamber, and an air outlet is also provided at the lower end of the detection chamber.

In this embodiment, the cleaning assembly 7 includes an upper cleaning part and a lower cleaning part, the upper cleaning part is arranged upward in the detection chamber, and the lower cleaning part is arranged downward in the detection chamber , wherein, both the upper cleaning part and the lower cleaning part can be cleaned by means of pumping and spraying.

The cleaning assembly includes an outer ferrule 16, an outer sealing sleeve 15, an inner sealing sleeve 11, an air jet column, an upper cleaning part 14, and a lower cleaning part 18, wherein the outer ferrule is fixed on the end of the air jet column part, and the center of the pumping jet column is provided with a pumping jet channel, the outer ferrule is provided with a clean jet pump communicating with the pumping jet channel, and the outer end of the pumping jet column is fixedly sleeved with the As for the outer sealing sleeve, the inner end fixing sleeve of the pumping jet column is provided with the inner sealing sleeve, the inner sealing sleeve and the outer sealing sleeve are arranged against the inner side and the outer side of the detection chamber, and the inner sealing sleeve The sealing sleeve is provided with a communication hole that communicates with the detection chamber and the detection airway, and the position between the outer sealing sleeve 15 and the inner sealing sleeve 11 is provided with the upper cleaning part 14 and the lower cleaning part 18, The upper cleaning part 14 and the air injection column are surrounded by an upper air injection chamber 22, and the lower cleaning part 18 and the air injection column are surrounded by a lower air injection chamber 20. The upper cleaning Both the component 14 and the lower cleaning component 18 are provided with suction and injection holes facing the inner wall of the detection chamber.

The upper wall of the detection chamber is provided with an upper sliding sleeve 21, and the lower wall of the detection chamber is provided with a lower sliding sleeve 17, and the plug 23 and the cleaning assembly 7 are all slidably matched to the upper sliding sleeve and the lower sliding sleeve. .

The detection assembly includes an upper light emitter 13 and a lower light receiver 19, the upper light emitter 13 and the lower light receiver 19 are set up and down oppositely, and the cleaning assembly is located at the upper light emitter 13 and the lower light receiver Between 19.

When the cleaning component is cleaning, the cleaning suction jet pump of the cleaning component can switch intermittently between suction and jetting, so as to achieve periodic change of cleaning by suction and jetting.

The upper left end of the front part of the detection body 1 is fixedly equipped with a display screen 2; the rotating dismounting device 8 is composed of a rotating disk 81, a chute 82, a sliding column 83, a sliding rod 84, a rod groove 85 and a rotating part 86. A chute 82 is perforated in the middle part of the top end of the disk 81, and the inner diameter surface of the chute 82 is slidably matched with the sliding column 83, and the sliding column 83 is integrally connected with the inner side of the top surface of the sliding rod 84, and the sliding rod 84 is along the rod. The surface of the inner diameter of the groove 85 is slidingly fitted, the middle part of the bottom end of the rod groove 85 is rotationally fitted with the rotating member 86, and the rotating disk 81 is locked and fixed with the middle part of the bottom end of the detection body 1 .

The lower left end of the front part of the detection body 1 is provided with an indicator light 3, the upper right end of the front part of the detection body 1 is fixedly installed with a controller 4, and the middle part of the top end of the detection body 1 is connected with the connecting pipe 5, and the connecting pipe 5 Interconnected with the middle part of the bottom end of the air inlet head 6, the left bottom of the detection body 1 is connected to the power cord 7, the bottom of the detection body 1 is provided with a triangular support frame 10, the detection body 1, the display screen 2, the indicator Both the lamp 3 and the power line 7 are electrically connected to the controller 4 .

The auxiliary fixing mechanism 9 includes a main body 91, a round groove 92, a cross groove 93 and an insertion groove 94, the top middle of the main body 91 is embedded with a round groove 92, the top middle of the round groove 92 is embedded with a cross groove 93, the cross The inner four corners of the groove 93 are embedded with insertion grooves 94, the inner diameter surface of the circular groove 92 is engaged with the rotating disk 81, the inner diameter surface of the cross groove 93 is engaged with the rod groove 85, and the inner diameter surface of the insertion groove 94 is engaged with the sliding rod. 84 slip fit.

The chute 82 is in the shape of a semi-arc and distributed in a ring shape. The inner bottom of the cross groove 93 is provided with a rotating groove, and the rotating groove is rotatably matched with the rotating member 86. The insertion groove 94 is provided with four groups, and has a shape of Pairwise distribution.

The invention provides a detection device for indoor environmental particles, which is provided with a cleaning chamber connected to the detection chamber on the detection body, and a detachable seal in the cleaning chamber is provided with a cleaning assembly, and the detection chamber communicates with the detection chamber through the detection airway. The air inlet head is connected, and a detection component for detecting particulate matter is arranged in the detection cavity, and the cleaning end of the cleaning component can extend into the detection component of the detection cavity, so as to clean the detection component and the detection cavity The inner wall is cleaned to effectively clean the detection device and the detection chamber of the detection assembly, ensure the cleaning effect, and improve the detection accuracy; the present invention also includes blockage, which can be blocked when the detection device detects The outer port of the detection chamber is used to block and seal the detection chamber instead of the cleaning assembly, and an air outlet is also provided at the lower end of the detection chamber to ensure normal detection and improve detection efficiency; the present invention When the cleaning component is cleaning, the cleaning suction jet pump of the cleaning component can intermittently switch between suction and spray, so as to realize the periodic change of cleaning by suction and jet airflow, which can ensure the cleaning efficiency and improve the detection device and Detect the cleaning effect of the inner wall of the cavity; the present invention solves the problem that when it is necessary to use the particle detection device for the indoor environment, since the support frame at the bottom of the existing detection device is fixed by bolt locking or welding, no detection is required. It is inconvenient to disassemble quickly, the overall space is large, and it is not conducive to transportation. By installing the rotating disassembly device in the middle of the bottom end of the detection body, the rotating disc can be driven by force on the box to rotate. Through the sliding column and the The sliding cooperation of the chute drives the sliding rod to slide out and fix from the rod groove, which is convenient to disassemble and easy to carry; by setting the auxiliary fixing mechanism on the top surface of the triangular support frame, it can be fixed by the rotating disc and the circular groove, and through the rod groove and The cross-recessed card position is fixed to realize the insertion and cooperation of the sliding rod and the insertion groove, which has strong stability and is easy to fix.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (9)

1. A device for detecting particulate matter in an indoor environment, comprising a detection body (1), a rotating dismounting device (8), an auxiliary fixing mechanism (9) and a tripod support (10), wherein the rotating dismounting device (8) It is arranged in the middle part of the bottom end of the detection body (1), and the auxiliary fixing mechanism (9) is arranged on the top surface of the triangle support frame (10). Locking, loosening and disassembly are realized by rotation, and an air inlet head (6) is provided on the upper end of the detection body, and it is characterized in that a cleaning chamber communicating with the detection chamber (12) is provided on the detection body, the The detachable seal in the cleaning chamber is provided with a cleaning assembly (7), the detection chamber (12) communicates with the air inlet head through the detection air passage (10), and the detection chamber is provided with a detection device for detecting particulate matter. Assembly, the cleaning end of the cleaning assembly (7) can extend into the detection assembly of the detection chamber, so as to clean the detection assembly and the inner wall of the detection chamber; it also includes a blockage (23), when the When the detection device performs detection, the blockage can be blocked at the outer port of the detection chamber, so as to replace the cleaning component (7) to block and seal the detection chamber, and the lower end of the detection chamber is also provided with a airway; The cleaning assembly (7) includes an upper cleaning part and a lower cleaning part, the upper cleaning part is arranged upward in the detection chamber, and the lower cleaning part is arranged downward in the detection chamber, wherein the Both the upper cleaning part and the lower cleaning part can be cleaned by means of pumping and spraying. 2. A device for detecting particles in indoor environment according to claim 1, characterized in that: the cleaning assembly includes an outer ferrule (16), an outer sealing sleeve (15), an inner sealing sleeve (11), a pumping Air spray column, upper cleaning component (14), lower cleaning component (18), wherein, the outer ferrule is fixed on the end of the described suction jet column, and the center of the suction jet column is provided with a suction jet channel, so The outer ferrule is provided with a clean jet pump connected with the jet air channel, the outer end fixed sleeve of the air jet column is provided with the outer sealing sleeve, and the inner end fixed sleeve of the air jet column is provided with The inner sealing sleeve, the inner sealing sleeve and the outer sealing sleeve are arranged against the inner side and the outer side of the detection chamber, and the inner sealing sleeve is provided with a device that communicates with the detection chamber and the detection air passage. communication hole, the position between the outer sealing sleeve (15) and the inner sealing sleeve (11) is provided with the upper cleaning component (14), the lower cleaning component (18), the upper cleaning component (14) and An upper air injection chamber (22) is surrounded between the air extraction columns, and a lower air injection chamber (20) is enclosed between the lower cleaning part (18) and the air injection column. The upper cleaning part (14), the lower cleaning component (18) are both provided with suction and injection holes facing the inner wall of the detection chamber. 3. A device for detecting particles in an indoor environment according to claim 2, characterized in that: an upper sliding sleeve (21) is provided on the upper wall of the detection chamber, and an upper sliding sleeve (21) is provided on the lower wall of the detection chamber. The lower sleeve (17), the plug (23) and the cleaning assembly (7) are all slidably matched with the upper sliding sleeve and the lower sleeve. 4. A device for detecting particles in an indoor environment according to claim 3, characterized in that: the detection assembly includes an upper light emitter (13) and a lower light receiver (19), and the upper light emitter (13 ) and the lower light receiver (19) are vertically opposite to each other, and the cleaning assembly is located between the upper light emitter (13) and the lower light receiver (19). 5. A device for detecting particles in an indoor environment according to any one of claims 1-4, characterized in that: when the cleaning component is cleaning, the cleaning suction jet pump of the cleaning component can Intermittent switching is performed in order to realize suction and injection airflow to periodically change cleaning. 6. A device for detecting particulate matter in an indoor environment according to claim 5, characterized in that: a display screen (2) is fixedly installed on the upper left end of the front part of the detection body (1); the rotating dismounting device (8 ) consists of a rotating disc (81), a chute (82), a sliding column (83), a sliding rod (84), a rod groove (85) and a rotating member (86), and the middle part of the top of the rotating disc (81) is pierced There is a chute (82), the surface of the inner diameter of the chute (82) is slidably matched with the sliding column (83), and the sliding column (83) is integrally connected with the inner side of the top surface of the sliding rod (84), and the sliding rod (84) Sliding fit along the surface of the inner diameter of the rod groove (85), the middle part of the bottom end of the rod groove (85) rotates with the rotating part (86), and the rotating disc (81) and the middle part of the bottom end of the detection body (1) Lock securely. 7. A device for detecting particulate matter in an indoor environment according to claim 6, characterized in that: an indicator light (3) is provided at the lower left end of the front part of the detection body (1), A controller (4) is fixedly installed at the upper right end of the upper part, and the middle part of the top end of the detection body (1) is connected with the connecting pipe (5), and the connecting pipe (5) is connected with the middle part of the bottom end of the air inlet head (6). The left bottom of the detection body (1) is connected to the power cord (7), the bottom of the detection body (1) is provided with a triangular support frame (10), the detection body (1), the display screen (2), Both the indicator light (3) and the power cord (7) are electrically connected to the controller (4). 8. A device for detecting particles in an indoor environment according to claim 7, characterized in that: the auxiliary fixing mechanism (9) includes a main body (91), a circular groove (92), a cross groove (93) and an insertion Groove (94), the top middle part of the main body (91) is embedded with a round groove (92), the top middle part of the round groove (92) is embedded with a cross groove (93), and the inner four corners of the cross groove (93) are embedded with inserting Groove (94), the inner diameter surface of the circular groove (92) is engaged with the rotating disk (81), the inner diameter surface of the cross groove (93) is engaged with the rod groove (85), and the insertion groove (94) The inner diameter surface is a sliding fit with the sliding rod (84). 9. A device for detecting particulate matter in an indoor environment according to claim 8, characterized in that: the shape of the chute (82) is semi-arc and distributed in a ring shape, and the inner bottom of the cross groove (93) Rotation slots are provided, and the rotation slots are rotatably matched with the rotation member (86), and the insertion slots (94) are provided with four groups, and are arranged in pairs opposite each other.

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