Indoor atmosphere sampling device

Abstract

The utility model relates to the technical field of sampling, and discloses an indoor air sampling device which comprises a bottom plate, a collecting pipe is arranged above the bottom plate, three filter screens arranged at equal intervals are fixedly connected to the inner wall of the collecting pipe, a rotating shaft is rotationally connected among the three filter screens, and a rotating shaft is fixedly connected to the inner wall of the collecting pipe. And the outer surface of the rotating shaft is fixedly connected with three groups of tapered wedges which are arranged circumferentially. According to the indoor air sampling device, impurities with different sizes in air can be classified and intercepted by arranging three filter screens with different specifications, the effect that a vibration ball resets to knock the filter screens can be achieved by arranging an inclined wedge block after the vibration ball is extruded to be far away when a rotating shaft rotates, and through high-frequency knocking, the sampling efficiency is greatly improved. According to the dust collection device, intercepted dust can fall into the collection pipe, blockage of a filter screen is avoided, passing efficiency is guaranteed, meanwhile, a user can conveniently observe the solid content in air, the purpose of storing gas can be achieved through the collection bottle and the one-way valve, and transfer detection of the user is facilitated.

Description

Technical Field

[0001] The present application relates to the field of sampling technology, and in particular to an indoor atmosphere sampling device. Background Art

[0002] The sampling device for indoor environment testing is designed to detect indoor air quality so as to promptly detect and eliminate possible pollutants and harmful gases to ensure the health and safety of the indoor environment.

[0003] The existing patent (Announcement No.: CN220339793U) discloses a sampling device for indoor environment detection, which relates to the technical field of environmental sampling devices, including a fan, one end of which is connected to an air pipeline, one end of which is slidably installed with a filter mechanism, one side of which is fixedly installed with an air inlet, and the top of the fan is fixedly installed with a handle, and the other side of the fan is connected to a sampling collection device. The utility model has a handle fixedly installed on the top of the fan for the sampling device to be lifted and carried around for more convenient use. The large air masses and coarse particles in the air are filtered out by the mesh filter of the filtering mechanism, and the filtering mechanism can be removed for cleaning. There will be no residual particles to contaminate the collected samples during the next sampling. The sampling is more accurate and easy to clean and maintain. The particles of different diameters in the air are filtered and blocked by the sampling collection device, and adsorbed on the sampling fiber net of the corresponding aperture size, so that different samples in the air are sampled and classified and collected.

[0004] The above device filters out large air masses and coarse particles in the air through the mesh filter of the filtering mechanism. The filtering mechanism can be removed for cleaning. There will be no remaining particles to contaminate the collected samples during the next sampling, and the sampling is more accurate. However, after each sampling is completed, the above sampling device needs to disassemble and clean the multiple internal filters, which is relatively cumbersome. Utility Model Content

[0005] In response to the shortcomings of the prior art, the present application provides an indoor atmosphere sampling device with the advantages of accurate measurement, etc., which solves the problem of needing to disassemble and clean multiple internal filters, which is rather cumbersome. At the same time, during the sampling process, dust in the air is intercepted, and the solid content in the air cannot be accurately measured, affecting the accuracy of sampling.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an indoor air sampling device, comprising a bottom plate, a collection tube is arranged above the bottom plate, the inner wall of the collection tube is fixedly connected with three filter screens arranged at equal distances, a rotating shaft is rotatably connected between the three filter screens, and the outer surface of the rotating shaft is fixedly connected with three groups of circumferentially arranged inclined wedge blocks;

[0007] The inner wall of the collection tube is fixedly connected with three groups of reset seats arranged in a circle, a reset shaft is rotatably connected between the left and right inner walls of each reset seat, a reset plate is fixedly connected to the outer surface of each reset shaft, torsion springs are fixedly installed on both side surfaces of each reset plate, the other end of each torsion spring is fixedly connected to the reset seat adjacent to it, a vibration ball is fixedly connected to one side surface of each reset plate, and each vibration ball is in contact with the filter screen adjacent to it.

[0008] Through the above scheme, by setting up three filters of different specifications, impurities of different sizes in the air can be classified and intercepted, and by setting the inclined wedge block, the vibration ball can be squeezed away when the rotating shaft rotates, so as to achieve the effect of resetting the vibration ball and knocking the filter. Through high-frequency knocking, the intercepted dust can fall into the interior of the collection tube, avoiding clogging of the filter, ensuring the passing efficiency, and at the same time making it convenient for users to observe the solid content in the air. Through the collection bottle and the one-way valve, the purpose of gas preservation can be achieved, which is convenient for users to transfer and detect.

[0009] Furthermore, the bottom of the collection pipe is fixedly connected with three connecting pipes, and the bottom end of each connecting pipe is threadedly connected with a dust tank.

[0010] Through the above scheme, by setting up the dust tank, solid matter of different specifications can be classified and collected.

[0011] Furthermore, a pump body is installed on the upper surface of the bottom plate, and the input end of the pump body is fixedly connected to the collection pipe.

[0012] Through the above scheme and the setting of the pump body, the purpose of sucking air can be achieved.

[0013] Furthermore, four moving wheels arranged in a matrix are installed at the bottom of the base plate.

[0014] Through the above scheme, the overall movement can be facilitated by the provision of moving wheels.

[0015] Furthermore, a bottle rack is fixedly connected to the right side of the bottom plate, and a collection bottle is inserted into the bottle rack.

[0016] Through the above scheme and the provision of the bottle rack, the purpose of supporting the collection bottle can be achieved.

[0017] Furthermore, the top of the collection bottle is fixedly connected to a mounting tube, and a one-way valve is installed inside the mounting tube.

[0018] Through the above scheme, by setting the one-way valve, the backflow of gas inside the collection bottle can be avoided.

[0019] Furthermore, the output end of the pump body is fixedly connected with a hose, and the other end of the hose is threadedly connected to the mounting pipe.

[0020] Through the above scheme and the provision of a hose, the purpose of conveying gas can be achieved.

[0021] Furthermore, the inner wall of the collection tube is fixedly connected to a frame, a motor is fixedly installed inside the frame, and an output end of the motor is fixedly connected to one end of the rotating shaft.

[0022] Through the above solution, by setting the motor, it is possible to provide power for the rotation of the rotating shaft.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] The indoor air sampling device can classify and intercept impurities of different sizes in the air through three filters of different specifications. The inclined wedge block can squeeze the vibration ball away when the rotating shaft rotates, so as to achieve the effect of resetting the vibration ball and knocking the filter. The high-frequency knocking can make the intercepted dust fall into the interior of the collection tube, avoiding the clogging of the filter and ensuring the passing efficiency. At the same time, it can be convenient for users to observe the solid content in the air. The collection bottle and the one-way valve can achieve the purpose of gas preservation, which is convenient for users to transfer and detect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is the front view of the overall structure of this application;

[0026] Figure 2 It is a three-dimensional schematic diagram of the overall structure of this application;

[0027] Figure 3 This is a cross-sectional view of the overall structure of this application;

[0028] Figure 4 This is a schematic diagram of the filter, inclined wedge and vibration ball structure of this application.

[0029] In the figure:

[0030] 1. Bottom plate; 2. Collection tube; 3. Filter; 4. Rotating shaft; 5. Oblique wedge; 6. Reset seat; 7. Reset shaft; 8. Reset plate; 9. Torsion spring; 10. Vibration ball; 11. Connecting pipe; 12. Dust tank; 13. Pump body; 14. Moving wheel; 15. Bottle rack; 16. Collection bottle; 17. Mounting tube; 18. One-way valve; 19. Hose; 20. Rack; 21. Motor. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] See also Figure 1 , Figure 3 and Figure 4 An indoor air sampling device in this embodiment includes a base plate 1, a collection tube 2 is provided above the base plate 1, and three filter screens 3 arranged at equal distances are fixedly connected to the inner wall of the collection tube 2. The filter holes of the three filter screens 3 gradually decrease from left to right. Three connecting tubes 11 are fixedly connected to the bottom of the collection tube 2, and the bottom end of each connecting tube 11 is threadedly connected to a dust tank 12. Through the setting of the dust tank 12, solid matters of different specifications can be classified and collected.

[0033] See also Figure 1 , Figure 2 and Figure 3 A pump body 13 is installed on the upper surface of the base plate 1, and the input end of the pump body 13 is fixedly connected to the collection tube 2. Through the setting of the pump body 13, the purpose of sucking air can be achieved. Four moving wheels 14 arranged in a matrix are installed at the bottom of the base plate 1. Through the setting of the moving wheels 14, the overall movement can be facilitated. A bottle rack 15 is fixedly connected to the right side of the base plate 1. A collection bottle 16 is inserted into the bottle rack 15. Through the setting of the bottle rack 15, the purpose of supporting the collection bottle 16 can be achieved.

[0034] See also Figure 2 , Figure 3 and Figure 4 The top of the collection bottle 16 is fixedly connected to a mounting tube 17, and a one-way valve 18 is installed inside the mounting tube 17. The one-way valve 18 can prevent the gas inside the collection bottle 16 from flowing back. The output end of the pump body 13 is fixedly connected to a hose 19, and the other end of the hose 19 is threadedly connected to the mounting tube 17. The purpose of conveying gas can be achieved through the setting of the hose 19. A rotating shaft 4 is rotatably connected between the three filters 3, and three groups of circumferentially arranged inclined wedges 5 are fixedly connected to the outer surface of the rotating shaft 4. The inner wall of the collection tube 2 is fixedly connected to a frame 20, and a motor 21 is fixedly installed inside the frame 20. The output end of the motor 21 is fixedly connected to one end of the rotating shaft 4. The setting of the motor 21 can provide power for the rotation of the rotating shaft 4.

[0035] See also Figure 2 , Figure 3 and Figure 4The inner wall of the collection tube 2 is fixedly connected with three groups of reset seats 6 arranged in a circle, and a reset shaft 7 is rotatably connected between the left and right inner walls of each reset seat 6. The outer surface of each reset shaft 7 is fixedly connected with a reset plate 8, and torsion springs 9 are fixedly installed on both sides of each reset plate 8. The other end of each torsion spring 9 is fixedly connected to the reset seat 6 adjacent to it, and a vibration ball 10 is fixedly connected to one side of each reset plate 8, and each vibration ball 10 is in contact with the filter screen 3 adjacent to it.

[0036] An indoor air sampling device in the present embodiment can classify and intercept impurities of different sizes in the air through the three filters 3 of different specifications. The inclined wedge block 5 can squeeze the vibration ball 10 away when the rotating shaft 4 rotates, so as to achieve the effect of resetting the vibration ball 10 and knocking the filter 3. The high-frequency knocking can make the intercepted dust fall into the interior of the collection tube 2, avoiding the clogging of the filter 3 and ensuring the passing efficiency. At the same time, it can be convenient for users to observe the solid content in the air. The collection bottle 16 and the one-way valve 18 can achieve the purpose of gas preservation, which is convenient for users to transfer and detect.

[0037] It should be noted that the specifications of the three filters 3 are different.

[0038] The working principle of the above embodiment is as follows: when in use, by starting the pump body 13, external air is extracted through the collection tube 2, and the gas is filtered one by one through the three filter screens 3, so that particulate matter in the air can be intercepted, and the filtered gas is transported into the collection bottle 16 through the hose 19. When the collection is completed, the rotating shaft 4 is driven to rotate by starting the motor 21, which drives the inclined wedge block 5 to rotate. Since one side of the inclined wedge block 5 is an inclined surface, it contacts the vibration ball 10 during the rotation process, so that the vibration ball 10 and the reset plate 8 can be flipped to one side, and the torsion spring 9 is compressed. When the vibration ball 10 is out of contact with the inclined wedge block 5, the vibration ball 10 can be reset to knock on the filter screen 3. Through the rapid rotation of the rotating shaft 4, the knocking frequency of the vibration ball 10 can be accelerated, so that the intercepted particles fall into the interior of the dust tank 12, which can avoid clogging of the filter screen 3 and the tedious cleaning process. At the same time, it is convenient for the user to intuitively observe the particle content in the air.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0040] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An indoor air sampling device, comprising a bottom plate (1), characterized in that: A collection tube (2) is provided above the bottom plate (1); three filter screens (3) arranged at equal distances are fixedly connected to the inner wall of the collection tube (2); a rotating shaft (4) is rotatably connected between the three filter screens (3); and three groups of circumferentially arranged inclined wedge blocks (5) are fixedly connected to the outer surface of the rotating shaft (4); The inner wall of the collection tube (2) is fixedly connected to three groups of reset seats (6) arranged in a circle, a reset shaft (7) is rotatably connected between the left and right inner walls of each reset seat (6), a reset plate (8) is fixedly connected to the outer surface of each reset shaft (7), torsion springs (9) are fixedly installed on both sides of each reset plate (8), the other end of each torsion spring (9) is fixedly connected to the reset seat (6) adjacent to it, and a vibration ball (10) is fixedly connected to one side of each reset plate (8), and each vibration ball (10) is in contact with the filter screen (3) adjacent to it.

2. An indoor air sampling device according to claim 1, characterized in that: The bottom of the collection pipe (2) is fixedly connected to three connecting pipes (11), and the bottom end of each connecting pipe (11) is threadedly connected to a dust tank (12).

3. An indoor air sampling device according to claim 1, characterized in that: A pump body (13) is installed on the upper surface of the bottom plate (1), and an input end of the pump body (13) is fixedly connected to the collection pipe (2).

4. An indoor air sampling device according to claim 1, characterized in that: Four moving wheels (14) arranged in a matrix are installed at the bottom of the base plate (1).

5. An indoor air sampling device according to claim 1, characterized in that: A bottle rack (15) is fixedly connected to the right side surface of the bottom plate (1), and a collection bottle (16) is inserted into the interior of the bottle rack (15).

6. An indoor air sampling device according to claim 5, characterized in that: The top end of the collection bottle (16) is fixedly connected to a mounting tube (17), and a one-way valve (18) is installed inside the mounting tube (17).

7. An indoor air sampling device according to claim 3, characterized in that: The output end of the pump body (13) is fixedly connected to a hose (19), and the other end of the hose (19) is threadedly connected to the mounting pipe (17).

8. An indoor air sampling device according to claim 1, characterized in that: The inner wall of the collection tube (2) is fixedly connected to a frame (20), a motor (21) is fixedly installed inside the frame (20), and an output end of the motor (21) is fixedly connected to one end of the rotating shaft (4).

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