Dust sensor capable of automatically calibrating

Abstract

The utility model provides a dust sensor capable of automatic calibration, which comprises a dust sensor main body, a dust sample assembly and a dust sample box, and a sensor box body is arranged in the middle of the internal composition of the dust sensor main body. Compared with the prior art, the dust sensor has the following beneficial effects that the dust sensor main body and the dust sample assembly are additionally arranged, the prepared dust sample assembly is placed in the placing groove, and the fixing spring drives the fixing column to be embedded with the fixing hole, so that the dust sample assembly is mounted and fixed; during calibration, a calibration telescopic rod drives a calibration sliding block to move in a calibration sliding groove, a calibration pipe moves leftwards to penetrate through a penetrating hole and abuts against a sealing plate to move, a supporting spring is compressed, and a calibration hole pipe enters a dust sample box to detect a standard sample, so that calibration use can be facilitated; the dust sample can be conveniently stored for later use.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust sensors, and in particular relates to an automatically calibrated dust sensor. Background Art

[0002] Dust sensors are devices used to detect the concentration of suspended particulate matter (i.e., dust) in the air. These sensors are widely used in a variety of fields, including environmental monitoring, industrial safety, and indoor air quality assessment. The accuracy of a dust sensor's detection data is determined by its detection precision. Dust sensors are controlled internally by electronic components and programmed to automatically detect dust concentrations. The use of dust sensors may result in variations in their standard data due to factors such as the precision, quality, lifespan, and failures of the electronic components. This can lead to discrepancies between the sensor's measurement results and the actual dust concentration, potentially leading to misjudgments. Decisions based on erroneous measurement data can have serious consequences. For example, in air quality monitoring, erroneous data can lead to false pollution warnings. Dust sensors require calibration during use due to deviations in standard data. This requires connecting the dust sensor to an external standard sample for calibration and correction. This makes calibration complex and affects normal detection and use.

[0003] In summary, dust sensors that require manual connection operations during calibration have some problems in use, so it is hoped to propose a new structure to solve the above technical problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a dust sensor that can be automatically calibrated to solve the problems raised in the above background technology.

[0005] The utility model is realized through the following technical solutions: a dust sensor that can be automatically calibrated, comprising: a dust sensor main body, a dust sample assembly and a dust sample box, a sensor box body is provided in the middle position of the internal composition of the dust sensor main body, mounting plates are provided on the left and right sides of the sensor box body, a detection head is provided on the upper right side of the sensor box body, a placement groove for placing the dust sample assembly is provided at the left end of the upper surface of the sensor box body, a dust sample assembly for automatic calibration is provided on the inner side of the placement groove, the dust sample assembly includes a dust sample box, a box cover and two sealing rings, a calibration hole is provided on the inner side of the sensor box body and on the right side of the placement groove, a calibration tube for automatically calibrating and collecting standard data is provided at the middle position inside the calibration hole, and the right side of the dust sample box is vertically penetrated to form a through hole.

[0006] As a preferred embodiment, a storage groove is provided on the upper surface of the dust sample box, a support column is fixedly connected to the left end of the inner side of the storage groove, a support spring is provided on the inner side of the support column, and two groups of symmetrically arranged guide grooves are provided on the inner side of the support column.

[0007] As a preferred embodiment, a support slider is fixedly connected to the right side of the support spring, and the support slider and the guide slot are movably engaged with each other. A connecting column is fixedly connected to the right side of the support slider. In the absence of external force on the sealing plate, the support spring can push the support slider to move right in the guide slot, so that the sealing plate is engaged with the groove.

[0008] As a preferred embodiment, a sealing plate is fixedly connected to the right side of the connecting column, a groove is opened at the left end of the inner side of the dust sample box and the center of the perforation, and a sealing groove 1 is opened on the outer periphery of the left side of the groove;

[0009] The sealing plate and the groove are embedded in each other, and a sealing ring 1 is fixedly connected to the outer periphery of the right side of the sealing plate, and the sealing ring 1 is embedded in the sealing groove 1.

[0010] As a preferred embodiment, two groups of symmetrically arranged calibration grooves are provided on the inner side of the calibration hole, a calibration slider is fixedly connected to the outer side of the calibration tube, the calibration slider and the calibration groove are movably engaged with each other, and a group of calibration telescopic rods are fixedly connected to the right side of the calibration slider, which can enable the calibration telescopic rods to drive the calibration slider to move in the calibration groove, so that the calibration tube passes through the perforation into the storage tank to complete the calibration operation.

[0011] As a preferred embodiment, a fixing hole is provided on the rear side of the dust sample box, an inner hole is provided on the inside of the sensor box body and the rear side of the placement slot, a fixing spring is provided on the inside of the inner hole, a fixing column is provided on the inside of the fixing spring, and the fixing column and the fixing hole are engaged with each other, so that the fixing column is engaged with the fixing hole under the drive of the fixing spring, and the dust sample assembly can be pre-installed.

[0012] As a preferred embodiment, the upper end of the internal component of the box cover is provided with a cover plate, the lower end of the outer side surface of the cover plate and the upper end of the outer side surface of the dust sample box are both provided with a second sealing groove, and the upper end of the inner side surface of the dust sample box is provided with an internal thread;

[0013] A stud is fixedly connected to the bottom of the cover plate, and the stud is connected to the internal thread. The second sealing ring is put to the outside of the second sealing groove. The top of the dust sample box is sealed by the cover plate, and the second sealing ring is used to enhance the sealing, which can facilitate the storage of dust samples for backup.

[0014] After adopting the above technical solution, the beneficial effect of the utility model is: by adding a dust sensor main body and a dust sample assembly, the pre-prepared dust sample assembly is placed in the placement groove, and the fixing spring drives the fixing column to engage with the fixing hole to complete the installation and fixation of the dust sample assembly. During calibration, the calibration telescopic rod drives the calibration slider to move in the calibration slide groove, so that the calibration tube moves to the left through the perforation and moves against the sealing plate, compressing the support spring, and the calibration hole tube enters the dust sample box to detect the standard sample, which is convenient for calibration and use. By adding the dust sample assembly, the storage of dust samples can be facilitated for standby use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 The utility model is a schematic diagram of the overall structure of an automatically calibrated dust sensor.

[0017] Figure 2 The utility model is a structural schematic diagram of a dust sensor body in an automatically calibrated dust sensor.

[0018] Figure 3 The utility model is a partial cross-sectional schematic diagram of a dust sensor body in the left and right directions of an automatically calibrated dust sensor.

[0019] Figure 4 The utility model is a partial cross-sectional schematic diagram of a dust sensor body in the front and rear directions of an automatically calibrated dust sensor.

[0020] Figure 5 The utility model is a structural schematic diagram of a dust sample component in an automatically calibrated dust sensor.

[0021] Figure 6 The utility model is a schematic diagram of the structure of a dust sample box in an automatically calibrated dust sensor.

[0022] Figure 7 The utility model is a cross-sectional schematic diagram of a dust sample box in an automatically calibrated dust sensor.

[0023] Figure 8 The utility model is a schematic structural diagram of a dust sensor box cover capable of automatic calibration.

[0024] In the figure, 100-dust sensor body, 101-sensor box, 102-mounting plate, 103-detection head, 104-placement slot, 105-calibration hole, 106-calibration slide, 107-calibration telescopic rod, 108-calibration slider, 109-calibration tube, 110-fixing spring, 111-fixing column;

[0025] 200-dust sample assembly, 201-dust sample box, 202-box cover, 203-sealing ring 2;

[0026] 201a - storage tank, 201b - internal thread, 201c - sealing groove 2, 201d - fixing hole, 201e - through hole, 201f - support column, 201g - support spring, 201h - guide groove, 201i - guide slider, 201j - sealing plate, 201k - sealing groove 1, 201l - sealing ring 1;

[0027] 202a-stud, 202b-cover plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1 to 8 The utility model provides a technical solution: a dust sensor capable of automatic calibration, comprising: a dust sensor body 100, a dust sample assembly 200 and a dust sample box 201, wherein the dust sensor body 100 is provided with a sensor box 101 in the middle position of its internal components;

[0030] The sensor box body 101 is provided with mounting plates 102 on both sides. A detection head 103 is provided on the upper right side of the sensor box body 101. A placement slot 104 for placing the dust sample assembly 200 is provided on the left end of the upper surface of the sensor box body 101. A dust sample assembly 200 for automatic calibration is provided inside the placement slot 104.

[0031] The dust sample assembly 200 includes a dust sample box 201, a box cover 202 and a sealing ring 203. A calibration hole 105 is provided on the inner side of the sensor box body 101 and on the right side of the placement slot 104. A calibration tube 109 for automatically calibrating and collecting standard data is provided in the middle position inside the calibration hole 105. A through hole 201e is formed by vertically penetrating the right side of the dust sample box 201.

[0032] A storage slot 201a is provided on the upper surface of the dust sample box 201, and a support column 201f is fixedly connected to the left end of the inner side of the storage slot 201a. A support spring 201g is provided on the inner side of the support column 201f, and two groups of symmetrically arranged guide grooves 201h are provided on the inner side of the support column 201f.

[0033] The support slider 201i is fixedly connected to the right side of the support spring 201g, and the support slider 201i and the guide slot 201h are movably engaged with each other. A connecting column is fixedly connected to the right side of the support slider 201i. In the absence of external force on the sealing plate 201j, the support spring 201g can push the support slider 201i to move right in the guide slot 201h, so that the sealing plate 201j is engaged with the groove.

[0034] A sealing plate 201j is fixedly connected to the right side of the connecting column. A groove is opened at the left end of the inner side of the dust sample box 201 and the center of the circle of the through hole 201e. A sealing groove 201k is opened on the outer periphery of the left side of the groove.

[0035] The sealing plate 201j is interlocked with the groove, and a sealing ring 2011 is fixedly connected to the outer periphery of the right side of the sealing plate 201j, and the sealing ring 2011 is interlocked with the sealing groove 201k.

[0036] Two groups of symmetrically arranged calibration grooves 106 are provided on the inner side of the calibration hole 105, and a calibration slider 108 is fixedly connected to the outside of the calibration tube 109. The calibration slider 108 and the calibration groove 106 are movably engaged with each other. A group of calibration telescopic rods 107 are fixedly connected to the right side of the calibration slider 108, which can enable the calibration telescopic rods 107 to drive the calibration slider 108 to move in the calibration groove 106, so that the calibration tube 109 passes through the through hole 201e and enters the storage tank 201a to complete the calibration operation.

[0037] A fixing hole 201d is provided on the rear side of the dust sample box 201, and an inner hole is provided on the inner side of the sensor box body 101 and the rear side of the placement slot 104. A fixing spring 110 is provided on the inner side of the inner hole, and a fixing column 111 is provided on the inner side of the fixing spring 110. The fixing column 111 and the fixing hole 201d are engaged with each other, so that the fixing column 111 is engaged with the fixing hole 201d under the drive of the fixing spring 110, so that the dust sample assembly 200 can be pre-installed.

[0038] See also Figure 1-Figure 7As the first embodiment of the present utility model: first, the user pulls the fixing column 111 to the rear side to compress the fixing spring 110, and then places the dust sample assembly 200 in the placement groove 104, removes the external force so that the fixing column is driven by the fixing spring 110 to engage with the fixing hole 201d, so that the dust sample assembly 200 can be pre-installed and fixed. Secondly, during calibration, the calibration telescopic rod 107 drives the calibration slider 108 to move in the calibration slide groove 106, so that the calibration tube 109 passes through the through hole 201e and enters the storage groove 201a. When the dust sample box 201 is not in use, the support spring 201g can make the support slider 201i located at the right end, and make the sealing plate 201j engage with the groove, so that the sealing ring 201l is engaged with the sealing groove 201k to complete the sealing effect, so that it is convenient for calibration and use.

[0039] The upper end of the box cover 202 is provided with a cover plate 202b, and the lower end of the outer side of the cover plate 202b and the upper end of the outer side of the dust sample box 201 are both provided with a sealing groove 201c, and the upper end of the inner side of the dust sample box 201 is provided with an internal thread 201b;

[0040] A stud 202a is fixedly connected to the bottom of the cover 202b, and the stud 202a is threadedly connected to the internal thread 201b. The sealing ring 203 is put onto the outside of the sealing groove 201c. The top of the dust sample box 201 is sealed by the cover 202, and the sealing ring 203 is used to enhance the sealing, which can facilitate the storage of dust samples for backup.

[0041] See also Figure 1 -and Figure 5-Figure 8 As the second embodiment of the present utility model: Based on the above-mentioned first embodiment, the user can fill the storage groove 201a of the dust sample box 201 with a predetermined amount of dust, and screw the stud 202a and the internal thread 201b together, so that the sealing ring 203 is nested to the outside of the sealing groove 201c to improve the sealing effect, thereby facilitating the storage of dust samples for backup.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dust sensor capable of automatic calibration, comprising: A dust sensor body (100), a dust sample assembly (200) and a dust sample box (201), characterized in that: a sensor box body (101) is provided at a middle position in the internal composition of the dust sensor body (100); The sensor box body (101) is provided with mounting plates (102) on both the left and right sides, a detection head (103) is provided on the upper right side of the sensor box body (101), a placement groove (104) for placing the dust sample assembly (200) is provided at the left end of the upper surface of the sensor box body (101), and a dust sample assembly (200) for automatic calibration is provided inside the placement groove (104); The dust sample assembly (200) includes a dust sample box (201), a box cover (202) and a second sealing ring (203). A calibration hole (105) is provided on the inner side of the sensor box body (101) and on the right side of the placement slot (104). A calibration tube (109) for automatically calibrating and collecting standard data is provided in the middle position of the inner side of the calibration hole (105). A through hole (201e) is vertically penetrated through the right side of the dust sample box (201).

2. The automatically calibrated dust sensor according to claim 1, characterized in that: A storage groove (201a) is provided on the upper surface of the dust sample box (201), a support column (201f) is fixedly connected to the left end of the inner side of the storage groove (201a), a support spring (201g) is provided on the inner side of the support column (201f), and two groups of symmetrically arranged guide grooves (201h) are provided on the inner side surface of the support column (201f).

3. The automatically calibrated dust sensor according to claim 2, characterized in that: The right side of the support spring (201g) is fixedly connected to a support slider (201i), the support slider (201i) and the guide slide groove (201h) are movably engaged with each other, and the right side of the support slider (201i) is fixedly connected to a connecting column.

4. The automatically calibrated dust sensor according to claim 3, characterized in that: A sealing plate (201j) is fixedly connected to the right side of the connecting column, a groove is provided at the left end of the inner side surface of the dust sample box (201) and the center of the circle of the through hole (201e), and a sealing groove 1 (201k) is provided on the outer periphery of the left side surface of the groove; The sealing plate (201j) and the groove are interlocked, and a sealing ring 1 (201l) is fixedly connected to the outer periphery of the right side of the sealing plate (201j), and the sealing ring 1 (201l) and the sealing groove 1 (201k) are interlocked.

5. The automatically calibrated dust sensor according to claim 4, characterized in that: The inner side of the calibration hole (105) is provided with two sets of symmetrically arranged calibration grooves (106), the outer side of the calibration tube (109) is fixedly connected with a calibration slider (108), the calibration slider (108) and the calibration groove (106) are movably engaged with each other, and the right side of the calibration slider (108) is fixedly connected with a set of calibration telescopic rods (107).

6. The automatically calibrated dust sensor according to claim 1, characterized in that: A fixing hole (201d) is provided on the rear side of the dust sample box (201), an inner hole is provided on the inner side of the sensor box body (101) and the rear side of the placement slot (104), a fixing spring (110) is provided on the inner side of the inner hole, a fixing column (111) is provided on the inner side of the fixing spring (110), and the fixing column (111) and the fixing hole (201d) are interlocked.

7. The automatically calibrated dust sensor according to claim 1, characterized in that: The upper end of the internal component of the box cover (202) is provided with a cover plate (202b), the lower end of the outer side surface of the cover plate (202b) and the upper end of the outer side surface of the dust sample box (201) are both provided with a second sealing groove (201c), and the upper end of the inner side surface of the dust sample box (201) is provided with an internal thread (201b); A stud (202a) is fixedly connected to the bottom of the cover plate (202b), and the stud (202a) is threadedly connected to the internal thread (201b), and the second sealing ring (203) is sleeved onto the outside of the second sealing groove (201c).

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