Portable sampler for nitrogen oxide detector

Abstract

The utility model relates to the technical field of samplers, and discloses a portable sampler for a nitrogen oxide detector, which comprises a carrying box, mounting boxes are fixedly connected to the front side and the rear side of the inside of the carrying box, sliding blocks are slidably connected to the inner sides of the mounting boxes, and a supporting rod is rotatably connected to the right side of the inside of the carrying box. A mounting plate is rotatably connected to the top end of the supporting rod, two first spherical sleeves are fixedly connected to the left side of the bottom end of the mounting plate, rotating rods are rotatably connected to the inner sides of the first spherical sleeves, second spherical sleeves are fixedly connected to the top end of the sliding block, and the other ends of the two rotating rods are rotatably connected to the inner sides of the two second spherical sleeves. According to the utility model, the sampler and the tripod are convenient to fold and store when being carried, so that the occupied space is reduced, the convenience is improved, the difficulty in carrying the sampler is reduced, the sampling time is shortened, the sampling efficiency is improved, and the phenomenon that the work progress is delayed is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of samplers, in particular to a portable sampler for a nitrogen oxide detector. Background Art

[0002] A nitrogen oxide detector is an instrument specifically used to detect the nitrogen oxide content in the air. Its working principle is mainly based on chemical reactions and electrochemical principles. The nitrogen oxide sensor reacts with nitrogen oxides in the air to generate specific electrical signals, and then measures the size of the electrical signal to determine the concentration of nitrogen oxides. It can quickly and accurately detect the nitrogen oxide content and issue an alarm in time when necessary to prevent air pollution from harming humans and the environment. During use, the airbag is located inside the device, and it is inconvenient to empty the residual air inside it. Therefore, it will pollute the air collected in the airbag and affect the accuracy of the test results. In addition, the way the device collects gas requires a gas pressure sensor to detect the gas pressure in the airbag, which increases the use cost of the device.

[0003] In order to solve the above problems, a utility model patent with publication number CN220289136U discloses a portable gas sampler. By setting a piston mechanism, in the initial state, the top wall of the piston plate fits with the top wall of the inner cavity of the sampling box, so that no residual gas will remain on the top of the inner cavity of the sampling box, avoiding contamination of the collected gas and affecting the detection results. The downward movement distance of the piston plate can be accurately observed through the observation window and the sampling scale, and the gas sampling amount at the top of the inner cavity of the sampling box can be controlled, thereby improving the applicability of the equipment.

[0004] The above-mentioned sampler still has some shortcomings during use. When the sampler is sampling nitrogen oxides, it is usually necessary to carry the sampler, and the sampler needs to be supported by a tripod when carried, so it is necessary to carry the tripod and the sampler at the same time, which is more troublesome. If the tripod is not fixed when carrying, the frame is easy to unfold, which is not convenient to take, thereby increasing the difficulty of carrying and using the sampler and reducing the sampling efficiency. In addition, the tripod is more complicated to install, which delays the work progress and prolongs the sampling time. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a portable sampler for a nitrogen oxide detector.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a portable sampler for a nitrogen oxide detector, comprising a carrying box, the front and rear sides of the carrying box are fixedly connected with installation boxes, the inner side of the installation box is slidably connected with a slider, the right side of the inner side of the carrying box is rotatably connected with a support rod, the top end of the support rod is rotatably connected with a mounting plate, the left side of the bottom end of the mounting plate is fixedly connected with two first spherical sleeves, the inner side of the first spherical sleeves is rotatably connected with a rotating rod, the top end of the slider is fixedly connected with a second spherical sleeve, the other ends of the two rotating rods are rotatably connected to the inner sides of the two second spherical sleeves, the right side of the mounting plate is rotatably connected with a clamping rod, a square groove is provided in the middle part of the right side of the support rod, a screw rod penetrates the middle part of the rear side of the support rod, and a nut is threadedly connected to the outer side of the screw rod.

[0007] As a further description of the above technical solution:

[0008] A mounting tube is threadedly connected to the middle part of the top end of the mounting plate, an adjusting column is slidably connected to the inner side of the mounting tube, a sampler body is fixedly installed on the top end of the adjusting column, a plurality of slots are provided on the front side of the adjusting column, a fixing shell is fixedly connected to the top end of the front side of the mounting tube, a card block is slidably connected to the inner side of the fixing shell, a U-shaped rod is fixedly connected to the front side of the card block, and springs are fixedly connected to the left and right sides of the front end of the card block.

[0009] As a further description of the above technical solution:

[0010] The front side of the U-shaped rod is rotatably connected with a handle, and the outer side of the U-shaped rod is slidably connected to the front side of the fixed shell.

[0011] As a further description of the above technical solution:

[0012] The opposite sides of the installation boxes on the front and rear sides are both provided with a plurality of thread grooves, and the opposite sides of the sliding blocks on the front and rear sides are both penetrated with bolts.

[0013] As a further description of the above technical solution:

[0014] An opening and closing cover is rotatably connected to the left side of the top of the carrying box, and a handle is fixedly connected to the left side of the carrying box.

[0015] As a further description of the above technical solution:

[0016] An iron sheet is fixedly connected to the top right side of the opening and closing cover, and two magnets are fixedly connected to the right side of the top of the carrying box.

[0017] As a further description of the above technical solution:

[0018] A plurality of universal wheels are fixedly connected to the bottom end of the carrying box, and the cross section of the card slot is arranged in a "cross" shape.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, the sampler is made easier to carry by cooperating with the carrying box, the mounting box, the slider, the support rod, the mounting plate, the first spherical sleeve, the rotating rod, the second spherical sleeve, the clamping rod and the square groove, so that the sampler and the tripod can be folded and stored when carried, which is beneficial to reduce the space occupied, improves the convenience, and reduces the difficulty of carrying the sampler, thereby shortening the sampling time, improving the sampling efficiency, and reducing the phenomenon of work progress being delayed.

[0021] 2. In the utility model, through the cooperation of the mounting tube, the adjusting column, the card slot, the fixing shell, the card block, the U-shaped block and the spring, the sampler is provided with the function of flexibly adjusting the height of the sampler during sampling according to the demand, thereby improving the flexibility of the sampler during sampling. Since the concentration of the gas distribution at different heights will be different, it is convenient to sample and detect the gas in the space at different heights, which is beneficial to improve the accuracy and comprehensiveness of the sampling data. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a portable sampler for a nitrogen oxide detector proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of a clamp rod of a portable sampler for a nitrogen oxide detector proposed by the utility model;

[0024] Figure 3 This is a schematic diagram of the handle structure of a portable sampler for a nitrogen oxide detector proposed by the utility model;

[0025] Figure 4 This is a schematic diagram of the mounting plate structure of a portable sampler for a nitrogen oxide detector proposed by the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of an adjustment column of a portable sampler for a nitrogen oxide detector proposed by the utility model;

[0027] Figure 6 The utility model provides a schematic diagram of the card block structure of a portable sampler for a nitrogen oxide detector.

[0028] Legend:

[0029] 1. Carrying box; 2. Installation box; 3. Sliding block; 4. Support rod; 5. Mounting plate; 6. First spherical sleeve; 7. Rotating rod; 8. Second spherical sleeve; 9. Clamping rod; 10. Square groove; 11. Screw rod; 12. Nut; 13. Mounting tube; 14. Adjusting column; 15. Sampler body; 16. Clamping slot; 17. Fixing shell; 18. Clamping block; 19. U-shaped rod; 20. Spring; 21. Handle; 22. Threaded groove; 23. Bolt; 24. Opening and closing cover; 25. Handle; 26. Iron sheet; 27. Magnet; 28. Universal wheel. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1-6 The utility model provides an embodiment: a portable sampler for a nitrogen oxide detector, including a carrying box 1, the front and rear sides of the carrying box 1 are fixedly connected with a mounting box 2, which is convenient for the slider 3 to adjust the position, the inner side of the mounting box 2 is slidably connected with the slider 3, the right side of the carrying box 1 is rotatably connected with a support rod 4, which is convenient for support and enhances stability, the top of the support rod 4 is rotatably connected with a mounting plate 5, and the bottom left side of the mounting plate 5 is fixedly connected with two first spherical sleeves 6 for connecting the rotating rod 7, the first spherical sleeve 6 The inner side is rotatably connected with a rotating rod 7, and the top of the slider 3 is fixedly connected with a second spherical sleeve 8, which is convenient for the rotation of the rotating rod 7 and improves the flexibility of the rotating rod 7. The other ends of the two rotating rods 7 are rotatably connected to the inner sides of the two second spherical sleeves 8. The right side of the mounting plate 5 is rotatably connected with a clamping rod 9. A square groove 10 is provided in the middle of the right side of the support rod 4, so that the clamping rod 9 is clamped into the inside of the square groove 10. A screw rod 11 passes through the middle of the rear side of the support rod 4, and a nut 12 is threadedly connected to the outer side of the screw rod 11, which is convenient for fixing the clamped clamping rod 9.

[0032] A mounting tube 13 is threadedly connected to the middle part of the top of the mounting plate 5, and an adjusting column 14 is slidably connected to the inner side of the mounting tube 13, which is convenient for driving the sampler body 15 to adjust the position. The sampler body 15 is fixedly installed on the top of the adjusting column 14, and a plurality of card slots 16 are arranged on the front side of the adjusting column 14. A fixed shell 17 is fixedly connected to the top of the front side of the mounting tube 13, and a card block 18 is slidably connected to the inner side of the fixed shell 17 to facilitate the movement of the card block 18. A U-shaped rod 19 is fixedly connected to the front side of the card block 18 for pulling the card block 18. Springs 20 are fixedly connected to the left and right sides of the front end of the card block 18 to increase the elastic force of the card block 18. A handle 21 is rotatably connected to the front side of the U-shaped rod 19 for pulling the U-shaped rod 19. The outer side of the U-shaped rod 19 is slidably connected to the front side of the fixed shell 17, and a plurality of threaded grooves 22 are provided on the opposite sides of the front and rear mounting boxes 2. Bolts 23 are penetrated on the opposite sides of the front and rear sliders 3, which are convenient for fixing the sliders 3 after movement. An opening and closing cover 24 is rotatably connected to the left side of the top of the carrying box 1, and a handle 25 is fixedly connected to the left side of the carrying box 1 to facilitate pulling the carrying box 1. An iron sheet 26 is fixedly connected to the top right of the opening and closing cover 24, and two magnets 27 are fixedly connected to the right side of the top of the carrying box 1 to facilitate the closing of the opening and closing cover 24. A plurality of universal wheels 28 are fixedly connected to the bottom end of the carrying box 1 to facilitate the movement of the carrying box 1, and the cross-section of the card slot 16 is set to a "cross" shape to improve the stability of the card engagement.

[0033] Working principle: when the sampler is folded and stored for carrying, first twist the mounting tube 13 to make the mounting tube 13 separate from the top of the mounting plate 5, so as to disassemble the mounting tube 13, and then twist the nut 12 to loosen the screw 11 and then disassemble it, and then pull out the loosened clamping rod 9 to make the clamping rod 9 separate from the inner side of the square groove 10, and then twist the two bolts 23 to make the bolts 23 separate from the inside of the threaded groove 22, so that the two sliders 3 are in a slidable state, and then slide the slider 3 to make the slider 3 drive the second spherical sleeve 8 to move to the right side of the installation box 2, so as to drive the rotating rod 7 to rotate inside the first spherical sleeve 6 and the second spherical sleeve 8, and then make the support rod 4 and the two rotating rods 7 drive the rotation of the mounting plate 5 under the action of the separation support force, so as to be stored to the inner bottom end of the carrying box 1, so as to facilitate the sampler to be folded and stored when being carried, which is conducive to reducing the space occupied, improving the convenience, and reducing the difficulty of carrying the sampler. The sampling time is shortened, the sampling efficiency is improved, and the delay of the work progress is reduced. When adjusting the height of the sampler body 15, the handle 21 is pulled, so that the handle 21 drives the U-shaped rod 19 to pull the block 18, so that the block 18 is separated from the corresponding slot 16, so that the block 18 moves to the inside of the fixed shell 17 and squeezes the spring 20, and then the adjustment column 14 is pulled to make the adjustment column 14 slide on the inner side of the mounting tube 13, so as to facilitate the sampler body 15 to adjust the height. After the adjustment, the handle 21 is released, and the spring 20 is pressed and rebounded to push the block 18 to the inner side of the slot 16, so as to fix the position of the adjustment column 14, so as to facilitate the flexible adjustment of the sampler height during sampling according to the needs, improve the flexibility of the sampler during sampling, and facilitate the sampling and detection of gases in spaces of different heights, which is conducive to improving the accuracy and comprehensiveness of the sampling data.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable sampler for a nitrogen oxide detector, comprising a carrying case (1), characterized in that: The carrying box (1) is fixedly connected to the front and rear sides of the interior of the carrying box (1), and a slider (3) is slidably connected to the inner side of the installing box (2). The right side of the interior of the carrying box (1) is rotatably connected to a supporting rod (4), and the top end of the supporting rod (4) is rotatably connected to a mounting plate (5). The left side of the bottom end of the mounting plate (5) is fixedly connected to two first spherical sleeves (6), and the inner side of the first spherical sleeve (6) is rotatably connected to a rotating rod (7). The top end of the sliding block (3) is fixedly connected to a second spherical sleeve (8), and the other ends of the two rotating rods (7) are rotatably connected to the inner sides of the two second spherical sleeves (8). The right side of the mounting plate (5) is rotatably connected to a clamping rod (9). A square groove (10) is provided in the middle of the right side of the supporting rod (4), and a screw rod (11) passes through the middle of the rear side of the supporting rod (4), and a nut (12) is threadedly connected to the outer side of the screw rod (11).

2. A portable sampler for a nitrogen oxide detector according to claim 1, characterized in that: A mounting tube (13) is threadedly connected to the middle of the top end of the mounting plate (5), an adjusting column (14) is slidably connected to the inner side of the mounting tube (13), a sampler body (15) is fixedly mounted to the top end of the adjusting column (14), a plurality of card slots (16) are arranged on the front side of the adjusting column (14), a fixing shell (17) is fixedly connected to the top end of the front side of the mounting tube (13), a card block (18) is slidably connected to the inner side of the fixing shell (17), a U-shaped rod (19) is fixedly connected to the front side of the card block (18), and springs (20) are fixedly connected to the left and right sides of the front end of the card block (18).

3. A portable sampler for a nitrogen oxide detector according to claim 2, characterized in that: The front side of the U-shaped rod (19) is rotatably connected to a handle (21), and the outer side of the U-shaped rod (19) is slidably connected to the front side of the fixed shell (17).

4. A portable sampler for a nitrogen oxide detector according to claim 1, characterized in that: The opposite sides of the installation boxes (2) on the front and rear sides are both provided with a plurality of thread grooves (22), and the opposite sides of the sliding blocks (3) on the front and rear sides are both penetrated by bolts (23).

5. The portable sampler for nitrogen oxide detector according to claim 1, characterized in that: An opening and closing cover (24) is rotatably connected to the left side of the top end of the carrying box (1), and a handle (25) is fixedly connected to the left side of the carrying box (1).

6. A portable sampler for a nitrogen oxide detector according to claim 5, characterized in that: An iron sheet (26) is fixedly connected to the top right side of the opening and closing cover (24), and two magnets (27) are fixedly connected to the top right side of the carrying box (1).

7. A portable sampler for a nitrogen oxide detector according to claim 2, characterized in that: The bottom end of the carrying case (1) is fixedly connected to a plurality of universal wheels (28), and the cross section of the card slot (16) is arranged in a "cross" shape.

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