Air inlet dustproof device of atmospheric measuring machine, air inlet and atmospheric measuring machine

Abstract

The invention discloses an air inlet dustproof device of an atmospheric measuring machine, an air inlet and the atmospheric measuring machine, and relates to the technical field of atmospheric measuring machines. Comprising a dustproof net belt winding and unwinding assembly which is provided with an air inlet of the atmosphere measuring machine and can be wound and unwound, a light-emitting assembly which is arranged on the outer side of the dustproof net belt winding and unwinding assembly and irradiates the dustproof net belt winding and unwinding assembly, and an optical sensor which is arranged on the inner side of the dustproof net belt winding and unwinding assembly and can detect light intensity. The unwinding control assembly is used for controlling the dustproof net belt winding and unwinding assembly to unwind; the optical sensor and the unwinding control assembly are in signal connection with the single-chip microcomputer control system. The device further comprises a belt replacement alarm system in signal connection with the single-chip microcomputer control system. The dust screen belt impurity particle adsorption condition can be detected in real time, and a new dust screen belt can be automatically replaced when much dust is adsorbed. The residual amount of the dustproof net belt can be calculated, and early warning prompt is performed when the residual amount is insufficient; smooth ventilation of the ventilation opening can be effectively ensured, and the accuracy of air pressure measurement of the atmospheric measuring machine is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of atmosphere measuring machines, and more specifically to the technical field of an air inlet dustproof device of an atmosphere measuring machine, an air inlet and an atmosphere measuring machine. Background Art

[0002] In order to ensure that the atmospheric measuring machine can accurately measure the air pressure during the flight of the equipment, the air vents of the atmospheric measuring machine must be kept unobstructed. However, during the flight, suspended particles, rain, dust, etc. floating in the surrounding environment may gather at the vents, blocking the vents, causing the external airflow to be blocked when flowing to the internal air pressure sensor of the atmospheric measuring machine, and ultimately affecting the accuracy of the atmospheric pressure measurement of the atmospheric measuring machine. Existing patents disclose the following technologies:

[0003] The patent with the publication number CN116678795A and the patent name "A Mechanism for Measuring the Particle Size of Atmospheric Dust" discloses the following contents: including: a mechanism body, which is a hollow cylinder, and a first connection hole and a third connection hole are arranged on the side wall of the mechanism body; a detection mechanism, which is detachably fixed in the mechanism body through the first connection hole; an exhaust mechanism, which is detachably fixed in the mechanism body through the third connection hole, and the wind passes through the detection mechanism and the exhaust mechanism in sequence when the exhaust mechanism is in operation. When the present invention is in use, the exhaust mechanism will exhaust air in the direction where the detection mechanism is located, and after the wind enters the mechanism body, the particle size analyzer of the detection mechanism measures the particle size of atmospheric dust, and the mechanism body protects the particle size analyzer therein to prevent it from being affected by the environment. In addition, when the particle size analyzer, fan and filter need to be replaced, the filter, fan and particle size analyzer can be replaced by removing the first clamp, the second clamp and the third clamp from the mechanism body.

[0004] The above patents and existing atmospheric measuring machines do not have many dust-proof designs. They generally use dust covers or dust nets for dust prevention, and the dust nets do not have an automatic replacement function. Instead, they use automatic cleaning devices to reuse the dust nets. This design cannot target sticky impurities. After long-term use, the dust nets still absorb too much dust particles, resulting in poor ventilation and affecting the accuracy of air pressure measurement. Summary of the invention

[0005] The purpose of the present invention is to solve the technical problem that the dust-proof structure of the existing atmospheric measuring machine cannot deal with impurities with high viscosity, and after long-term use, the dust-proof net still absorbs too much particulate dust, resulting in poor ventilation and affecting the accuracy of air pressure measurement. The present invention provides an atmospheric measuring machine air inlet dust-proof device, an air inlet and an atmospheric measuring machine.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] The first aspect of the present invention provides an air inlet dustproof device for an atmosphere measuring machine, comprising a dustproof mesh belt retracting and unretracting assembly arranged at the air inlet of the atmosphere measuring machine, a light-emitting assembly arranged outside the dustproof mesh belt retracting and unretracting assembly and irradiating the dustproof mesh belt retracting and unretracting assembly, an optical sensor arranged inside the dustproof mesh belt retracting and unretracting assembly and capable of detecting light intensity, an unreeling control assembly for controlling the unreeling of the dustproof mesh belt retracting and unreeling assembly, and a single-chip control system; the optical sensor and the unreeling control assembly are both signal-connected to the single-chip control system;

[0008] The single-chip control system determines the impurity particle adsorption condition of the dust-proof mesh belt of the current dust-proof mesh belt retracting and unwinding component according to the light intensity transmitted by the optical sensor. When the adsorption condition exceeds the threshold, the unwinding control component is controlled to rotate to realize automatic replacement of the dust-proof mesh belt.

[0009] It also includes a tape change alarm system connected to the signal of the single-chip microcomputer control system, and the tape change alarm system includes a remaining amount sensor and an alarm; the single-chip microcomputer control system determines the remaining amount of the dustproof mesh tape of the dustproof mesh tape retracting and unwinding assembly according to the rotation distance of the unwinding control assembly. When the remaining amount of the dustproof mesh tape is lower than the threshold value, the single-chip microcomputer control system controls the alarm to issue a warning prompt.

[0010] Specifically, this solution can detect the adsorption of impurity particles on the dustproof mesh in real time, and automatically replace the new dustproof mesh when the adsorption is large. It can calculate the remaining amount of the dustproof mesh and issue an early warning when the remaining amount is insufficient. It can effectively ensure smooth ventilation of the vents and ensure the accuracy of the air pressure measurement of the atmospheric measuring machine.

[0011] In one embodiment, the dustproof mesh belt retracting assembly includes a dustproof mesh belt roll, a dustproof mesh belt unwinding roller located on one side of the air inlet of the atmosphere measuring machine, a dustproof mesh belt take-up roller located on the other side of the air inlet of the atmosphere measuring machine, a belt unwinding end pinch roller assembly close to the dustproof mesh belt unwinding roller, and a belt take-up end pinch roller assembly close to the dustproof mesh belt take-up roller;

[0012] The dustproof mesh belt reel is arranged on the dustproof mesh belt unwinding roller, and the starting end of the dustproof mesh belt reel bypasses the unwinding end pressure wheel assembly and the taking-up end pressure wheel assembly and is wound around the dustproof mesh belt taking-up roller, and the unwinding control assembly drives the dustproof mesh belt taking-up roller to rotate.

[0013] In one embodiment, the unwinding control component is a winding motor.

[0014] In one embodiment, an air intake passage is provided between the unwinding end pinch roller assembly and the take-up end pinch roller assembly, and the unwinding end pinch roller assembly and the take-up end pinch roller assembly are symmetrically arranged at both ends of the air intake passage.

[0015] In one embodiment, the unwinding end pinch roller assembly and the take-up end pinch roller assembly each include two guide rollers disposed one above the other, and both ends of each guide roller are provided with a deviation correction limit block to prevent the dustproof net belt roll from deviating when unwinding.

[0016] In one embodiment, the belt changing alarm system includes a remaining amount sensing mechanism for detecting the remaining amount of the dustproof mesh belt unwinding roller and an alarm device arranged outside the air inlet of the atmosphere measuring machine, and both the remaining amount sensing mechanism and the alarm device are connected to the single chip control system signal.

[0017] In one embodiment, the alarm device is an LED light or a buzzer alarm device.

[0018] In one embodiment, the light emitting component is a UV light component, and the optical sensor is a UV optical sensor.

[0019] A second aspect of the present invention provides an air inlet of an atmosphere measuring machine, comprising the above-mentioned dust prevention device for the air inlet of an atmosphere measuring machine.

[0020] The third aspect of the present invention provides an automatically replaceable atmosphere measuring machine, comprising the above-mentioned dust prevention device for the air inlet of the atmosphere measuring machine.

[0021] This embodiment takes the present invention as an example, which has a dustproof mesh belt roller, two belt-pressing roller assemblies, a purple light, an LED light, a purple light optical sensor and a set of single-chip control systems. The purple light optical sensor senses the light intensity of the purple light that passes through the dustproof mesh, and the single-chip control system determines the adsorption of impurity particles on the current dustproof mesh belt according to the light intensity. When the adsorption exceeds the threshold, the belt-pressing roller is controlled to rotate to realize automatic replacement of the dustproof mesh belt. At the same time, the single-chip control system determines the remaining dustproof mesh belt amount according to the rotation distance, and when the remaining dustproof mesh belt is lower than the threshold, the LED light is turned on for early warning.

[0022] Working principle:

[0023] The rotation is controlled, and the winding motor is controlled by the single-chip control system. A purple light is installed at the outer edge of the vent, and the light faces the inside of the vent. A purple light optical sensor is installed in the vent. The optical sensor communication interface is connected to the single-chip control system, and the single-chip control system reads the light intensity felt by the optical sensor through the interface.

[0024] In the initial state, the dust net does not absorb impurities and has good light transmission. The single-chip control system reads a high light intensity from the optical sensor. As the equipment works, the dust net absorbs more impurities and the light transmission of the dust net gradually decreases, causing the light intensity read by the single-chip control system to decrease until it is lower than the low light intensity threshold. At this time, the single-chip control system controls the winding motor to drive the pressure wheel assembly at the belt rewinding end to rotate, and replaces the dust net with more magazine particles at the vent with a clean dust net. The light transmission of the dust net gradually increases, and the light intensity read by the single-chip control system increases accordingly. When the light intensity exceeds the high light intensity threshold, the single-chip control system stops the motor control, and the dust net is automatically replaced. The single-chip control system calculates the used length based on the rotation time and obtains the remaining unused dust net length. If the remaining length is less than 20% of the total length, the LED light is turned on for early warning.

[0025] The beneficial effects of the present invention are as follows:

[0026] This solution can detect the adsorption of impurity particles on the dustproof mesh in real time, and automatically replace the new dustproof mesh when the adsorption is large. It can calculate the remaining amount of the dustproof mesh and issue an early warning when the remaining amount is insufficient. It can effectively ensure smooth ventilation of the vents and ensure the accuracy of the air pressure measurement of the atmospheric measuring machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 yes Figure 1 Schematic diagram of the local structure;

[0030] Figure numerals: 1-light-emitting component, 2-dust-proof net belt retracting and releasing component, 3-optical sensor, 4-alarm, 5-air inlet of atmosphere measuring machine, 21-belt-releasing end pressure wheel assembly, 22-belt-retracting end pressure wheel assembly. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and technical effects of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] Example 1

[0036] like Figure 1 to Figure 2 As shown, the present embodiment provides a dust-proof device for the air inlet of an atmosphere measuring machine, comprising a dust-proof mesh belt retracting and unwinding assembly 2 which is arranged at the air inlet 5 of the atmosphere measuring machine, a light-emitting assembly 1 which is arranged at the outside of the dust-proof mesh belt retracting and unwinding assembly 2 and irradiates the dust-proof mesh belt retracting and unwinding assembly 2, an optical sensor 3 which is arranged at the inside of the dust-proof mesh belt retracting and unwinding assembly 2 and can detect light intensity, an unwinding control assembly which controls the unwinding of the dust-proof mesh belt retracting and unwinding assembly 2, and a single-chip control system; the optical sensor 3 and the unwinding control assembly are both connected to the single-chip control system signal;

[0037] The single-chip control system determines the adsorption of impurity particles on the dust-proof mesh belt of the current dust-proof mesh belt retracting and unwinding component 2 according to the light intensity transmitted by the optical sensor 3. When the adsorption exceeds the threshold, the unwinding control component is controlled to rotate to realize automatic replacement of the dust-proof mesh belt.

[0038] It also includes a tape change alarm system connected to the single-chip control system signal, the tape change alarm system includes a remaining amount sensor and an alarm 4; the single-chip control system determines the remaining dust-proof mesh tape amount of the dust-proof mesh tape retracting and unwinding component 2 according to the rotation distance of the unwinding control component. When the remaining dust-proof mesh tape amount is lower than the threshold value, the single-chip control system controls the alarm 4 to issue a warning prompt.

[0039] Specifically, this solution can detect the adsorption of impurity particles on the dustproof mesh in real time, and automatically replace the new dustproof mesh when the adsorption is large. It can calculate the remaining amount of the dustproof mesh and issue an early warning when the remaining amount is insufficient. It can effectively ensure smooth ventilation of the vents and ensure the accuracy of the air pressure measurement of the atmospheric measuring machine.

[0040] Example 2

[0041] like Figure 1 to Figure 2 As shown, the present embodiment provides a dust-proof device for the air inlet of an atmosphere measuring machine, comprising a dust-proof mesh belt retracting and unwinding assembly 2 which is arranged at the air inlet 5 of the atmosphere measuring machine, a light-emitting assembly 1 which is arranged at the outside of the dust-proof mesh belt retracting and unwinding assembly 2 and irradiates the dust-proof mesh belt retracting and unwinding assembly 2, an optical sensor 3 which is arranged at the inside of the dust-proof mesh belt retracting and unwinding assembly 2 and can detect light intensity, an unwinding control assembly which controls the unwinding of the dust-proof mesh belt retracting and unwinding assembly 2, and a single-chip control system; the optical sensor 3 and the unwinding control assembly are both connected to the single-chip control system signal;

[0042] The single-chip control system determines the adsorption of impurity particles on the dust-proof mesh belt of the current dust-proof mesh belt retracting and unwinding component 2 according to the light intensity transmitted by the optical sensor 3. When the adsorption exceeds the threshold, the unwinding control component is controlled to rotate to realize automatic replacement of the dust-proof mesh belt.

[0043] It also includes a tape change alarm system connected to the single-chip control system signal, the tape change alarm system includes a remaining amount sensor and an alarm 4; the single-chip control system determines the remaining dust-proof mesh tape amount of the dust-proof mesh tape retracting and unwinding component 2 according to the rotation distance of the unwinding control component. When the remaining dust-proof mesh tape amount is lower than the threshold value, the single-chip control system controls the alarm 4 to issue a warning prompt.

[0044] The dustproof mesh belt retracting assembly 2 includes a dustproof mesh belt roll, a dustproof mesh belt unwinding roller located on one side of the air inlet 5 of the atmosphere measuring machine, a dustproof mesh belt take-up roller located on the other side of the air inlet 5 of the atmosphere measuring machine, a belt unwinding end pinch roller assembly 21 close to the dustproof mesh belt unwinding roller, and a belt take-up end pinch roller assembly 22 close to the dustproof mesh belt take-up roller;

[0045] The dustproof mesh belt reel is arranged on the dustproof mesh belt unwinding roller, and the starting end of the dustproof mesh belt reel passes through the unwinding end pressure wheel assembly 21 and the take-up end pressure wheel assembly 22 and is wound around the dustproof mesh belt take-up roller, and the unwinding control assembly drives the dustproof mesh belt take-up roller to rotate.

[0046] The unwinding control component is the rewinding motor.

[0047] An air inlet passage is formed between the unwinding end pinch roller assembly 21 and the taking-up end pinch roller assembly 22 , and the unwinding end pinch roller assembly 21 and the taking-up end pinch roller assembly 22 are symmetrically arranged at both ends of the air inlet passage.

[0048] The unwinding end pinch wheel assembly 21 and the rewinding end pinch wheel assembly 22 each include two guide rollers disposed one above the other. Both ends of each guide roller are provided with deviation-correcting limit blocks for preventing the dustproof net belt roll from deviating when unwinding.

[0049] The belt replacement alarm system includes a residual amount sensing mechanism for detecting the residual amount of the dustproof mesh belt unwinding roller and an alarm device arranged outside the air inlet 5 of the atmosphere measuring machine. Both the residual amount sensing mechanism and the alarm device are connected to the single-chip control system signal.

[0050] Alarm device LED light or buzzer alarm device.

[0051] The light emitting component 1 is a purple light component, and the optical sensor 3 is a purple light optical sensor 3 .

[0052] Example 3

[0053] This embodiment provides an air inlet of an atmosphere measuring machine, including the above-mentioned dust prevention device for the air inlet of an atmosphere measuring machine.

[0054] Example 4

[0055] This embodiment provides an air inlet of an atmosphere measuring machine,

[0056] This embodiment provides an automatically replaceable atmosphere measuring machine, including the above-mentioned dust prevention device for the air inlet of the atmosphere measuring machine.

[0057] This embodiment takes the present invention as an example, which has a dustproof mesh belt roller, two belt-pressing roller assemblies, a purple light lamp, an LED lamp, a purple light optical sensor 3 and a set of single-chip control systems. The purple light optical sensor 3 senses the light intensity of the purple light lamp passing through the dustproof mesh, and the single-chip control system determines the adsorption of impurity particles on the current dustproof mesh belt according to the light intensity. When the adsorption exceeds the threshold, the belt-pressing roller is controlled to rotate to realize automatic replacement of the dustproof mesh belt. At the same time, the single-chip control system determines the remaining dustproof mesh belt amount according to the rotation distance, and when the remaining dustproof mesh belt is lower than the threshold, the LED lamp is lit for early warning.

[0058] Working principle:

[0059] The rotation is controlled, and the winding motor is controlled by the single-chip control system. A purple light is installed at the outer edge of the vent, and the light faces the inside of the vent. A purple light optical sensor 3 is installed in the vent. The communication interface of the optical sensor 3 is connected to the single-chip control system, and the single-chip control system reads the light intensity felt by the optical sensor 3 through the interface.

[0060] In the initial state, the dust net does not absorb foreign particles, and the light transmittance is good. The single-chip control system reads a large light intensity from the optical sensor 3; as the equipment works, the number of foreign particles absorbed by the dust net increases, and the light transmittance of the dust net gradually decreases, causing the light intensity read by the single-chip control system to decrease until it is lower than the low light intensity threshold. At this time, the single-chip control system controls the winding motor to drive the pressure wheel assembly 22 at the belt receiving end to rotate, and replaces the dust net belt with more magazine particles at the vent with a clean dust net belt. The light transmittance of the dust net belt gradually increases, and the light intensity read by the single-chip control system increases accordingly. When the light intensity exceeds the high light intensity threshold, the single-chip control system stops the motor control, and the dust net belt is automatically replaced. The single-chip control system calculates the used length based on the rotation time of this time, and obtains the remaining unused dust net belt length. If the remaining length is less than 20% of the total length, the LED light is turned on for early warning.

Claims

1. A dust prevention device for an air inlet of an atmosphere measuring machine, characterized in that: It comprises a dust-proof mesh belt retracting and unwinding assembly (2) which is provided with an air inlet (5) of an atmospheric measuring machine and can be retracted and unwound, a light-emitting assembly (1) which is provided on the outside of the dust-proof mesh belt retracting and unwinding assembly (2) and irradiates the dust-proof mesh belt retracting and unwinding assembly (2), an optical sensor (3) which is provided on the inside of the dust-proof mesh belt retracting and unwinding assembly (2) and can detect light intensity, an unwinding control assembly which controls the unwinding of the dust-proof mesh belt retracting and unwinding assembly (2), and a single-chip control system; the optical sensor (3) and the unwinding control assembly are both connected to the single-chip control system by signals; The single-chip control system determines the adsorption of foreign particles on the dustproof mesh belt of the current dustproof mesh belt retracting and unwinding component (2) based on the light intensity transmitted by the optical sensor (3), and controls the unwinding control component to rotate when the adsorption exceeds a threshold value, thereby realizing automatic replacement of the dustproof mesh belt; It also includes a tape change alarm system connected to the single-chip control system signal, the tape change alarm system including a remaining amount sensor and an alarm (4); the single-chip control system determines the remaining amount of dust-proof mesh tape of the dust-proof mesh tape retracting and unwinding component (2) according to the rotation distance of the unwinding control component, and when the remaining amount of dust-proof mesh tape is lower than a threshold value, the single-chip control system controls the alarm (4) to issue a warning prompt.

2. The dust-proof device for the air inlet of an atmosphere measuring machine according to claim 1, characterized in that: The dustproof mesh belt retracting and unwinding assembly (2) comprises a dustproof mesh belt roll, a dustproof mesh belt unwinding roller located on one side of the air inlet (5) of the atmosphere measuring machine, a dustproof mesh belt take-up roller located on the other side of the air inlet (5) of the atmosphere measuring machine, a belt unwinding end pressure roller assembly (21) close to the dustproof mesh belt unwinding roller, and a belt take-up end pressure roller assembly (22) close to the dustproof mesh belt take-up roller; The dustproof mesh belt reel is arranged on the dustproof mesh belt unwinding roller, the starting end of the dustproof mesh belt reel passes around the unwinding end pressure wheel assembly (21) and the take-up end pressure wheel assembly (22) and is wound around the dustproof mesh belt take-up roller, and the unwinding control assembly drives the dustproof mesh belt take-up roller to rotate.

3. The dust-proof device for the air inlet of an atmosphere measuring machine according to claim 2, characterized in that: The unwinding control component is a winding motor.

4. The dust-proof device for the air inlet of an atmosphere measuring machine according to claim 2, characterized in that: An air intake passage is provided between the unwinding end pressure wheel assembly (21) and the taking-up end pressure wheel assembly (22), and the unwinding end pressure wheel assembly (21) and the taking-up end pressure wheel assembly (22) are symmetrically arranged at both ends of the air intake passage.

5. The dust-proof device for the air inlet of an atmosphere measuring machine according to claim 4, characterized in that: The unwinding end belt pressure wheel assembly (21) and the take-up end belt pressure wheel assembly (22) both include two guide rollers arranged one above the other, and both ends of each guide roller are provided with a deviation correction limit block to prevent the dustproof net belt roll from deviating when unwinding.

6. The dust-proof device for the air inlet of an atmosphere measuring machine according to claim 2, characterized in that: The belt replacement alarm system comprises a residual amount sensing mechanism for detecting the residual amount of the dustproof mesh belt on the belt unwinding roller and an alarm device arranged outside the air inlet (5) of the atmosphere measuring machine, and the residual amount sensing mechanism and the alarm device are both connected to the single chip control system signal.

7. The dust-proof device for the air inlet of an atmosphere measuring machine according to claim 6, characterized in that: The alarm device is an LED light or a buzzer alarm device.

8. The dust-proof device for the air inlet of an atmosphere measuring machine according to claim 1, characterized in that: The light-emitting component (1) is a purple light lamp component, and the optical sensor (3) is a purple light optical sensor (3).

9. An air inlet of an atmosphere measuring machine, characterized in that: An air inlet dust prevention device for an atmosphere measuring machine comprising any one of claims 1 to 8.

10. An automatically replaceable atmospheric measuring machine, characterized in that: An air inlet dust prevention device for an atmosphere measuring machine comprising any one of claims 1 to 8.

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