An extraction-type ultra-low dust meter with an anti-static sampling head

Abstract

This utility model relates to the field of ultra-low dust meter technology, and in particular to an extraction-type ultra-low dust meter with an anti-static sampling head. It includes a detector, an adsorption tube fixedly installed on one side of the outer surface of the detector, and a collection structure fixedly installed at the end of the adsorption tube. The collection structure includes a flange. During dust detection, the output shaft of a servo motor drives a copper core to rotate, thereby causing the copper core to rotate a conductive brush inside the collection tube, sweeping away suspended dust particles. Simultaneously, the conductive brush is connected to the copper core via metal contacts, allowing static electricity to be conducted to the outer surface of a first metal collar through a conductive silicone ring. Due to the grounding wire connection, the static electricity is conducted to the ground. This prevents static electricity from adsorbing free dust particles in the environment, which could lead to falsely high sampling concentrations and deviations from the true value, affecting normal dust detection and improving detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of ultra-low dust meter technology, specifically an extractable ultra-low dust meter with an anti-static sampling head. Background Technology

[0002] Ultra-low dust meters are mainly used to detect the concentration of dust in ambient air. Types of dust meters include: laser dust meters, online continuous monitoring dust meters, and portable dust meters. Dust meters are widely used in disease prevention and control centers, mines, metallurgy, power plants, chemical manufacturing, health supervision, environmental protection, online environmental monitoring, and so on.

[0003] Existing ultra-low dust meters still have certain shortcomings in practical use: the sampling head of existing ultra-low dust meters lacks an anti-static structure, which causes static electricity to attract free dust particles in the environment, resulting in falsely high sampling concentrations and measured values ​​deviating from the true values, affecting normal dust detection. Based on the shortcomings of existing technology, this utility model designs an extractable ultra-low dust meter with an anti-static sampling head. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an extractable ultra-low dust meter with an anti-static sampling head, which has the advantage of an anti-static sampling head.

[0005] This utility model provides the following technical solution: an extraction-type ultra-low dust meter with an anti-static sampling head, comprising a detector, an adsorption tube fixedly installed on one side of the outer surface of the detector, and a collection structure fixedly installed at the end of the adsorption tube; the collection structure comprises a flange, a collection tube fixedly installed on one side of the outer surface of the flange, a first metal collar disposed inside the collection tube, a grounding wire fixedly installed on one side of the outer surface of the first metal collar, three second connecting blocks fixedly installed inside the first metal collar, second metal collars fixedly installed inside the three second connecting blocks, a servo motor fixedly installed inside the second metal collar, a copper core fixedly installed at one end of the output shaft of the servo motor, a conductive silicone ring installed on the outer surface of the first metal collar, the conductive silicone ring being fitted around the outer surface of the copper core, and a conductive brush installed on the outer surface of the copper core.

[0006] As a preferred embodiment of this utility model, the flange is fixedly connected to the end of the adsorption tube by bolts, one end of the grounding wire is connected to the ground, and a first connecting block is fixedly installed on the top of the first metal collar.

[0007] As a preferred embodiment of this utility model, a disassembly structure is fixedly installed on the top of the outer surface of the flange, and the disassembly structure includes two fixing plates.

[0008] As a preferred embodiment of this utility model, the two fixing plates are fixedly connected to the flange by bolts, and a sealing frame is fixedly installed between the two fixing plates. The sealing frame is fixedly connected to the first connecting block.

[0009] As a preferred embodiment of this utility model, the sealing frame is fitted over the opening of the collection tube, and the bottom of the sealing frame is fixedly connected to the first metal collar.

[0010] As a preferred embodiment of this utility model, guide rails are fixedly installed on both sides of the top of the outer surface of the sealing frame.

[0011] As a preferred embodiment of this utility model, a sliding plate is slidably installed inside the two guide rails.

[0012] As a preferred technical solution of this utility model, a groove communicating with the collection tube is provided below the sliding plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This extraction-type ultra-low dust meter with an anti-static sampling head, through its acquisition structure, uses a servo motor to drive the output shaft of a copper core to rotate during dust detection. This allows the copper core to drive a conductive brush to rotate inside the acquisition tube, sweeping away suspended dust particles. Simultaneously, the conductive brush is connected to the copper core via metal contacts, allowing static electricity to be conducted to the outer surface of the first metal collar through a conductive silicone ring. Due to the grounding wire connection, the static electricity can be conducted to the ground. This avoids static electricity adsorbing free dust particles in the environment, which could lead to falsely high sampling concentrations and measured values ​​deviating from the true values, thus affecting normal dust detection and improving the accuracy of the detection.

[0015] 2. This type of extraction-type ultra-low dust meter with an anti-static sampling head has a disassembly and assembly structure. After the test is completed, the slide plate can be slid open, and the copper core can be removed from the output shaft of the servo motor through the hole. Then, the copper core and conductive brush are pulled out from the collection tube. The bolts on the fixing plate are loosened, and the sealing frame and the first metal collar can be removed from the inside of the flange, so that the inside of the collection tube can be cleaned. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the adsorption tube structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the disassembly and assembly structure of this utility model;

[0019] Figure 4This is a schematic diagram of the grounding wire structure of this utility model;

[0020] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Detector; 2. Adsorption tube; 3. Acquisition structure; 31. Flange; 32. Acquisition tube; 33. First connecting block; 34. First metal collar; 35. Second connecting block; 36. Second metal collar; 37. Servo motor; 38. Conductive silicone ring; 39. Copper core; 310. Conductive brush; 311. Grounding wire; 4. Assembly / disassembly structure; 41. Fixing plate; 42. Sealing frame; 43. Guide rail; 44. Slide plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 An extractive ultra-low dust meter with an anti-static sampling head includes a detector 1. An adsorption tube 2 is fixedly installed on one side of the outer surface of the detector 1, and a collection structure 3 is fixedly installed at the end of the adsorption tube 2. The collection structure 3 includes a flange 31. A collection tube 32 is fixedly installed on one side of the outer surface of the flange 31. A first metal collar 34 is provided inside the collection tube 32. A grounding wire 311 is fixedly installed on one side of the outer surface of the first metal collar 34. Three second connecting blocks 35 are fixedly installed inside the first metal collar 34. A second metal collar 36 is fixedly installed inside the three second connecting blocks 35. A servo motor 37 is fixedly installed inside the second metal collar 36. A copper core 39 is fixedly installed at one end of the output shaft of the servo motor 37. A conductive silicone ring 38 is installed on the outer surface of the first metal collar 34. The conductive silicone ring 38 is sleeved on the outer surface of the copper core 39. A conductive brush 310 is installed on the outer surface of the copper core 39.

[0024] Please see Figure 1-5 The flange 31 is fixedly connected to the end of the adsorption tube 2 by bolts, one end of the grounding wire 311 is connected to the ground, and the first connecting block 33 is fixedly installed on the top of the first metal collar 34.

[0025] The copper core 39 drives the conductive brush 310 to rotate inside the collection tube 32, sweeping away suspended dust particles. At the same time, the conductive brush 310 is connected to the copper core 39 through metal contacts, and can conduct static electricity through the conductive silicone ring 38 to the outer surface of the first metal collar 34. Due to the connection of the grounding wire 311, the static electricity can be conducted to the ground.

[0026] Please see Figure 2-3 A disassembly structure 4 is fixedly installed on the top of the outer surface of the flange 31. The disassembly structure 4 includes two fixing plates 41. The two fixing plates 41 are fixedly connected to the flange 31 by bolts. A sealing frame 42 is fixedly installed between the two fixing plates 41 and is fixedly connected to the first connecting block 33. The sealing frame 42 is fitted over the opening of the collection tube 32, and the bottom of the sealing frame 42 is fixedly connected to the first metal collar 34. Guide rails 43 are fixedly installed on both sides of the top of the outer surface of the sealing frame 42. Slide plates 44 are slidably installed inside the two guide rails 43.

[0027] After the test is completed, the slide plate 44 is slid open, and the copper core 39 can be removed from the output shaft of the servo motor 37 through the hole. Then, the copper core 39 and the conductive brush 310 are pulled out from the collection tube 32. The bolts on the fixing plate 41 are loosened, and the sealing frame 42 and the first metal collar 34 can be removed from the inside of the flange 31, so that the inside of the collection tube 32 can be cleaned.

[0028] Working principle: When an extractive ultra-low dust meter with an anti-static sampling head is used, during dust detection, the output shaft of the servo motor 37 drives the copper core 39 to rotate. This causes the copper core 39 to rotate the conductive brush 310 inside the sampling tube 32, sweeping away suspended dust particles. Simultaneously, the conductive brush 310 is connected to the copper core 39 via metal contacts, allowing static electricity to be conducted through the conductive silicone ring 38 to the outer surface of the first metal collar 34. Due to the connection of the grounding wire 311, the static electricity is then conducted to the ground. This avoids the static electricity from adsorbing free dust particles in the environment, which would lead to an inflated sampling concentration and a deviation of the measured value from the true value, affecting normal dust detection. After the detection is completed, the slide plate 44 is slid open, and the copper core 39 can be removed from the output shaft of the servo motor 37 through the hole. Then, the copper core 39 and the conductive brush 310 are pulled out from the collection tube 32. The bolts on the fixing plate 41 are loosened, and the sealing frame 42 and the first metal collar 34 can be removed from the inside of the flange 31, so that the inside of the collection tube 32 can be cleaned.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A type of extraction-type ultra-low dust meter with an anti-static sampling head, comprising a detector (1), characterized in that: An adsorption tube (2) is fixedly installed on one side of the outer surface of the detector (1), and a collection structure (3) is fixedly installed at the end of the adsorption tube (2). The acquisition structure (3) includes a flange (31), an acquisition tube (32) is fixedly installed on one side of the outer surface of the flange (31), a first metal collar (34) is provided inside the acquisition tube (32), a grounding wire (311) is fixedly installed on one side of the outer surface of the first metal collar (34), three second connecting blocks (35) are fixedly installed inside the first metal collar (34), a second metal collar (36) is fixedly installed inside the three second connecting blocks (35), a servo motor (37) is fixedly installed inside the second metal collar (36), a copper core (39) is fixedly installed at one end of the output shaft of the servo motor (37), a conductive silicone ring (38) is installed on the outer surface of the first metal collar (34), the conductive silicone ring (38) is sleeved on the outer surface of the copper core (39), and a conductive brush (310) is installed on the outer surface of the copper core (39).

2. The extractive ultra-low dust meter with an anti-static sampling head according to claim 1, characterized in that: The flange (31) is fixedly connected to the end of the adsorption tube (2) by bolts, one end of the grounding wire (311) is connected to the ground, and the first connecting block (33) is fixedly installed on the top of the first metal collar (34).

3. The extraction-type ultra-low dust meter with an anti-static sampling head according to claim 1, characterized in that: The flange (31) has a disassembly structure (4) fixedly installed on the top of its outer surface. The disassembly structure (4) includes two fixing plates (41).

4. The extraction-type ultra-low dust meter with an anti-static sampling head according to claim 3, characterized in that: The two fixing plates (41) are fixedly connected to the flange (31) by bolts, and a sealing frame (42) is fixedly installed between the two fixing plates (41). The sealing frame (42) is fixedly connected to the first connecting block (33).

5. The extraction-type ultra-low dust meter with an anti-static sampling head according to claim 4, characterized in that: The sealing frame (42) is fitted over the opening of the collection tube (32), and the bottom of the sealing frame (42) is fixedly connected to the first metal collar (34).

6. The extractive ultra-low dust meter with an anti-static sampling head according to claim 4, characterized in that: Guide rails (43) are fixedly installed on both sides of the top of the outer surface of the sealing frame (42).

7. The extractive ultra-low dust meter with an anti-static sampling head according to claim 6, characterized in that: Slide plates (44) are slidably mounted inside the two guide rails (43).

8. The extraction-type ultra-low dust meter with an anti-static sampling head according to claim 7, characterized in that: The slide plate (44) has a groove below it that communicates with the collection tube (32).

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