Receiver applied to dust landing instrument

Abstract

The utility model relates to the technical field of environment monitoring, in particular to a receiver applied to a dust landing instrument, which comprises a rotating plate, a plurality of air inlet holes are arranged at the top of the rotating plate, the bottom of the rotating plate is connected with a rotating motor through a rotating shaft, the rotating motor is mounted in a motor groove, the motor groove is arranged at the top of a moving plate, and the moving plate is connected with the rotating plate through a rotating shaft. The movable plate is slidably connected with a movable groove, the movable groove is formed in the top of the base, a containing groove is formed in one end of the top of the base and located below the air inlet hole, a light source and a photoelectric detector are installed in the containing groove, and an exhaust hole is formed in the inner wall of the air inlet hole. The exhaust hole is connected with an exhaust port through an exhaust pipe, the exhaust port is formed in the top of the rotating plate, and an exhaust fan is installed in the exhaust port. The exhaust fan can be used for exhausting air from the air inlet hole through which air enters, dust residues are discharged from the air inlet hole, and the subsequent detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental monitoring, in particular to a receiver applied to a dust falling instrument. Background Art

[0002] Occupational health testing for chemical environment is to test and evaluate the working environment of workers in the environmental chemical industry to protect their health and safety. The test is designed to discover and evaluate possible harmful substances, risk factors and workplace conditions, and to determine whether they comply with relevant occupational health standards and regulations.

[0003] my country's chemical pollution is quite serious, mainly including the large amount of harmful substances produced in chemical production that affect people's health and the quality of the environment we live in, as well as the waste gas, waste water, waste residue and toxic gases discharged by chemical plants that cause serious pollution to water, soil and air. The excessive amount of suspended particulate matter in the atmosphere is an important aspect of environmental pollution.

[0004] Existing environmental detectors often use dust drop meters to detect dust when testing the environment of chemical areas. Dust drop meters are a device used to detect dust content. They are widely used in industrial production, processing and manufacturing areas. They can detect dust content, thereby enabling more environmentally friendly production methods. At present, dust detection devices are relatively large and inconvenient to carry.

[0005] When using a dust concentration detector equipped with a microcomputer laser measurement module, the light source and photoelectric detector need to be placed in a relatively sealed receiver to isolate external light interference. When the outside air enters the receiver, after a long period of work, once the air flow rate slows down or stops, some dust will inevitably remain in the receiver. This dust remains in the measuring device. After the next air is introduced, the remaining dust will be stirred up, causing the air dust concentration to increase, affecting the accuracy of the measurement results. When facing this situation, some existing detectors adopt the method of continuously introducing air for a period of time before measurement to take out the residual dust and then measure, which results in a longer startup time for the detector.

[0006] Therefore, it is necessary to provide a receiver for dust falling instrument to solve the above technical problems. Utility Model Content

[0007] In order to solve the above technical problems, the utility model provides a receiver applied to a dust falling meter.

[0008] The utility model provides a receiver for a dust drop meter, comprising: a rotating plate, a plurality of air inlet holes are arranged on the top of the rotating plate, the bottom of the rotating plate is connected to a rotating motor through a rotating shaft, the rotating motor is installed in a motor slot, the motor slot is arranged on the top of a movable plate, the movable plate is slidably connected to a movable slot, the movable slot is arranged on the top of a base, an electric hydraulic device is installed between the movable slot and the movable plate, the air inlet holes are movably connected to a sealing mechanism that can seal the air inlet holes, a placement slot is arranged at one end of the top of the base, the placement slot is located below the air inlet holes, a light source and a photoelectric detector are installed inside the placement slot, an exhaust hole is installed on the inner wall of the air inlet hole, the exhaust hole is connected to an exhaust port through an exhaust pipe, the exhaust port is installed on the top of the rotating plate, and an exhaust fan is installed inside the exhaust port.

[0009] Preferably, the sealing mechanism includes a sealing plate, a through hole is provided on the sealing plate, the sealing plate is rotatably connected to a sealing groove, the sealing groove is communicated with the air inlet, the sealing groove is arranged inside the rotating plate, the center of the sealing plate is connected to a sealing shaft, the sealing shaft is located inside the sealing rotating hole, the sealing shaft is rotatably connected to a sealing motor through a coupling, and the sealing motor is installed on the top of the rotating plate.

[0010] Preferably, a second sealing plate is provided below the sealing plate, a second through hole is provided on the second sealing plate, the second sealing plate is rotatably connected to a second sealing groove, the second sealing groove is communicated with the air inlet, the second sealing groove is arranged inside the rotating plate, and the top of the sealing plate is connected to the sealing shaft.

[0011] Preferably, a connecting ring is provided on the rotating plate on the outer side of the bottom of the air inlet hole, and the connecting ring is slidably connected to the connecting groove, and the connecting groove is arranged on the base outside the placement groove.

[0012] Preferably, the end surface of the movable plate is connected to a plurality of sliding blocks, the sliding blocks are slidably connected to sliding grooves, and the sliding grooves are arranged on the inner walls of the movable grooves.

[0013] Preferably, there are a plurality of exhaust holes, and the exhaust holes are located between the sealing plate and the upper sealing plate. The exhaust holes are equidistantly distributed on the inner wall of the air inlet hole around the axis of the air inlet hole.

[0014] Compared with the related art, the receiver for dust falling meter provided by the utility model has the following beneficial effects:

[0015] 1. The utility model can detect dust in the air and measure the dust concentration by installing a light source and a photoelectric detector in the placement slot. After the measurement, the air inlet located above the placement slot can be moved away by rotating the motor, and the air inlet that has been detected can be closed by rotating the sealing structure. The air inlet that has been inhaled can be exhausted by the exhaust fan, and the dust residue can be discharged from the air inlet, thereby improving the subsequent detection efficiency. By setting a plurality of air inlet holes, after one air inlet hole is moved away, the remaining air inlets can be added, thereby improving the continuity of the detection operation and the detection efficiency;

[0016] 2. The utility model provides a sealing plate that can be rotated by a sealing motor, and a through hole is provided on the sealing plate. When the sealing plate needs to be closed, the sealing plate without the through hole is rotated to the inside of the air inlet hole. When the air inlet hole needs to be opened, the through hole is located inside the air inlet hole to open and close the air inlet hole. By providing the second sealing hole and the second through hole, the opening and closing of the lower part of the air inlet hole can be realized. In cooperation with the sealing plate, the upper and lower parts of the connecting hole can be sealed to improve the sealing performance of the air inlet hole.

[0017] 3. The utility model can form a relatively sealed environment for the sealing hole and the placement groove through the connection of the connecting ring and the connecting groove when the rotating plate is moved up and down, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a preferred embodiment of a receiver for a dust falling meter provided by the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure of the base shown;

[0020] Figure 3 for Figure 1 The structural schematic diagram of the placement slot shown;

[0021] Figure 4 for Figure 1 The structural schematic diagram of the electric hydraulic device shown;

[0022] Figure 5 for Figure 1 A schematic diagram of the structure from the bottom view of the rotating plate shown;

[0023] Figure 6 for Figure 1 A schematic diagram of the structure from the bottom view of the rotating plate shown;

[0024] Numbers in the figure: 1. rotating plate; 2. air inlet; 3. exhaust hole; 4. exhaust port; 5. exhaust fan; 6. sealed motor; 7. base; 8. sealing plate; 9. rotating motor; 10. sliding groove; 11. connecting groove; 12. placement groove; 13. photoelectric detector; 14. light source; 15. moving plate; 16. sliding block; 17. motor groove; 18. electric hydraulic device; 19. second sealing plate; 20. connecting ring; 21. sealed rotating hole; 22. sealing groove; 23. second sealing groove. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is 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 utility model and are not used to limit the utility model.

[0026] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0027] refer to Figures 1 to 6 The utility model provides a receiver for a dust drop meter, comprising: a rotating plate 1, a plurality of air inlet holes 2 are arranged on the top of the rotating plate 1, a rotating motor 9 is connected to the bottom of the rotating plate 1 through a rotating shaft, the rotating motor 9 is installed in a motor slot 17, the motor slot 17 is provided with the top of a movable plate 15, the movable plate 15 is slidably connected to the movable slot, the movable slot is arranged on the top of a base 7, an electric hydraulic device 18 is installed between the movable slot and the movable plate 15, the air inlet holes 2 are movably connected to a sealing mechanism that can seal the air inlet holes 2, a placement slot 12 is arranged at one end of the top of the base 7, the placement slot 12 is located below the air inlet holes 2, a light source 14 and a photoelectric detector 13 are installed inside the placement slot 12, an exhaust hole 3 is installed on the inner wall of the air inlet hole 2, the exhaust hole 3 is connected to the exhaust port 4 through an exhaust pipe, the exhaust port 4 is installed on the top of the rotating plate 1, and an exhaust fan 5 is installed inside the exhaust port 4.

[0028] It should be noted that: when in use, the rotation of the rotating plate 1 is driven by the rotating motor 9, which can drive the rotation of the air inlet 2, and different air inlet holes 2 can be moved to the top of the placement slot 12, and then the sealing mechanism can be opened through the controller to expose the air inlet 2, and the outside air can enter the placement slot 12 through the air inlet 2. The light source 14 and the photoelectric detector 13 installed in the placement slot 12 can detect the dust in the air and measure the dust concentration. After the measurement, the air inlet 2 located above the placement slot 12 can be removed by the rotating motor 9, and the air inlet 2 that has been detected can be closed by rotating the sealing structure, and the air inlet 2 that has been inhaled can be exhausted by the exhaust fan 5 to discharge the dust residue from the air inlet 2, thereby improving the subsequent detection efficiency, and by providing multiple air inlet holes 2, after one air inlet hole 2 is removed, the remaining air inlets can be added, thereby improving the continuity of the detection operation and improving the detection efficiency.

[0029] In the embodiments of the present invention, reference is made to Figure 1 , Figure 6 As shown, the sealing mechanism includes a sealing plate 8, which is provided with a through hole. The sealing plate 8 is rotatably connected to a sealing groove 22, which is communicated with the air inlet 2. The sealing groove 22 is arranged inside the rotating plate 1. The center of the sealing plate 8 is connected to a sealing shaft, which is located inside the sealing rotating hole 21. The sealing shaft is rotatably connected to a sealing motor 6 through a coupling, and the sealing motor 6 is installed on the top of the rotating plate 1.

[0030] It should be noted that: by setting up a sealing plate 8 that can be rotated by a sealing motor 6, and providing a through hole on the sealing plate 8, when it is necessary to close, the sealing plate 8 without the through hole can be rotated to the inside of the air inlet 2, and when it is necessary to open, the through hole is located inside the air inlet 2, thereby realizing the opening and closing of the air inlet 2.

[0031] In the embodiments of the present invention, reference is made to Figure 1 , Figure 6 As shown, a second sealing plate 19 is provided below the sealing plate 8, a second through hole is provided on the second sealing plate 19, the second sealing plate 19 is rotatably connected to a second sealing groove 23, the second sealing groove 23 is communicated with the air inlet 2, the second sealing groove 23 is arranged inside the rotating plate 1, and the top of the sealing plate 8 is connected to the sealing shaft.

[0032] It should be noted that the second through hole is located directly below the through hole. By setting the second sealing hole and the second through hole, the opening and closing of the bottom of the air inlet hole 2 can be achieved. In conjunction with the sealing plate 8, the upper and lower parts of the connecting hole can be sealed to improve the sealing of the air inlet hole 2.

[0033] In the embodiments of the present invention, reference is made to Figure 2 , Figure 5 As shown, a connecting ring 20 is provided on the rotating plate 1 outside the bottom of the air inlet 2 , and the connecting ring 20 is slidably connected to the connecting groove 11 , and the connecting groove 11 is provided on the base 7 outside the placement groove 12 .

[0034] It should be noted that when the rotating plate 1 is moved up and down, the connecting ring 20 is connected to the connecting groove 11 to form a relatively sealed environment for the sealing hole and the placement groove 12, thereby improving the detection accuracy.

[0035] In the embodiments of the present invention, reference is made to Figure 2 , Figure 3 As shown, the end surface of the moving plate 15 is connected to a plurality of sliding blocks 16 , and the sliding blocks 16 are slidably connected to the sliding grooves 10 , and the sliding grooves 10 are arranged on the inner wall of the moving grooves.

[0036] It should be noted that: by providing the sliding block 16 , the sliding groove 10 can limit the sliding block 16 , thereby ensuring the stability of the upward and downward movement of the movable plate 15 .

[0037] In the embodiments of the present invention, reference is made to Figure 1 As shown, there are multiple exhaust holes 3 , and the exhaust holes 3 are located between the sealing plate 8 and the upper sealing plate 8 . The exhaust holes 3 are equidistantly distributed on the inner wall of the air inlet hole 2 around the axis of the air inlet hole 2 .

[0038] It should be noted that by providing a plurality of exhaust holes 3 , the efficiency of exhausting dust from the air inlet 2 can be improved by increasing the number of the exhaust holes 3 .

[0039] The working principle of a receiver for a dust falling meter provided by the utility model is as follows:

[0040] When in use, the rotation of the rotating plate 1 is driven by the rotating motor 9, which can drive the rotation of the air inlet 2, and different air inlet holes 2 can be moved to the top of the placement slot 12, and then the sealing mechanism can be opened through the controller to expose the air inlet 2, and the outside air can enter the placement slot 12 through the air inlet 2. The light source 14 and the photoelectric detector 13 installed in the placement slot 12 can detect the dust in the air and measure the dust concentration. After the measurement, the air inlet 2 located above the placement slot 12 can be removed by the rotating motor 9, and the detected air inlet 2 can be closed by rotating the sealing structure, and the air inlet 2 that has been inhaled can be exhausted by the exhaust fan 5 to discharge the dust residue from the air inlet 2, thereby improving the subsequent detection efficiency, and by providing multiple air inlet holes 2, after one air inlet hole 2 is removed, the remaining air inlets can be added, thereby improving the continuity of the detection operation and improving the detection efficiency.

[0041] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0042] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A receiver for a dust falling instrument, characterized in that: include: A rotating plate (1), wherein a plurality of air inlet holes (2) are arranged on the top of the rotating plate (1), the bottom of the rotating plate (1) is connected to a rotating motor (9) via a rotating shaft, the rotating motor (9) is installed in a motor slot (17), the motor slot (17) is provided with the top of a moving plate (15), the moving plate (15) is slidably connected to a moving slot, the moving slot is arranged on the top of a base (7), an electric hydraulic device (18) is installed between the moving slot and the moving plate (15), the air inlet holes (2) are movably connected to the air inlet holes (2), and the air inlet holes (2) can be movably connected to the air inlet holes (2). A sealing mechanism for sealing the hole (2) is provided at one end of the top of the base (7), the placement groove (12) is located below the air inlet hole (2), a light source (14) and a photoelectric detector (13) are installed inside the placement groove (12), an exhaust hole (3) is installed on the inner wall of the air inlet hole (2), the exhaust hole (3) is connected to an exhaust port (4) through an exhaust pipe, the exhaust port (4) is installed on the top of the rotating plate (1), and an exhaust fan (5) is installed inside the exhaust port (4).

2. A receiver for a dust fall meter according to claim 1, characterized in that: The sealing mechanism comprises a sealing plate (8), wherein a through hole is provided on the sealing plate (8), wherein the sealing plate (8) is rotatably connected to a sealing groove (22), wherein the sealing groove (22) is communicated with an air inlet hole (2), wherein the sealing groove (22) is arranged inside the rotating plate (1), wherein the center of the sealing plate (8) is connected to a sealing rotating shaft, wherein the sealing rotating shaft is located inside the sealing rotating hole (21), wherein the sealing rotating shaft is rotatably connected to a sealing motor (6) via a coupling, wherein the sealing motor (6) is mounted on the top of the rotating plate (1).

3. A receiver for a dust fall meter according to claim 2, characterized in that: A second sealing plate (19) is provided below the sealing plate (8), a second through hole is provided on the second sealing plate (19), the second sealing plate (19) is rotatably connected to a second sealing groove (23), the second sealing groove (23) is communicated with the air inlet (2), the second sealing groove (23) is arranged inside the rotating plate (1), and the top of the sealing plate (8) is connected to a sealing rotating shaft.

4. The receiver for dust falling instrument according to claim 1, characterized in that: A connecting ring (20) is provided on the rotating plate (1) outside the bottom of the air inlet (2), and the connecting ring (20) is slidably connected to the connecting groove (11), and the connecting groove (11) is provided on the base (7) outside the placement groove (12).

5. The receiver for dust falling instrument according to claim 4, characterized in that: The end surface of the movable plate (15) is connected to a plurality of sliding blocks (16), the sliding blocks (16) are slidably connected to the sliding groove (10), and the sliding groove (10) is arranged on the inner wall of the movable groove.

6. The receiver for dust falling instrument according to claim 1, characterized in that: The exhaust holes (3) are multiple in number, and the exhaust holes (3) are located between the sealing plate (8) and the upper sealing plate (8). The exhaust holes (3) are equidistantly distributed on the inner wall of the air inlet hole (2) around the axis of the air inlet hole (2).

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