A gas sampling device for chemical safety detection

Abstract

The utility model relates to a gas sampling technology field, concretely relates to a gas sampling equipment for chemical safety detection, including base, the top of base is fixedly connected with a plurality of collection box, and the bottom of collection box is fixedly connected with the air pipe and air inlet pipe respectively, and is equipped with the valve on the air pipe, is equipped with the piston disc in the collection box, the top of piston disc is fixedly connected with fixed column, and the top of fixed column is fixedly connected with the fixed disc located above collection box, the top of base is fixedly connected with the gas pump, and the top of gas pump is equipped with the air outlet head and air inlet head respectively, and the output of gas pump and air outlet head are connected through first hose, and the input of gas pump and air inlet head are connected through second hose, and the rotatory butt joint structure that is adapted with air outlet head and air inlet pipe respectively is installed on the base, can gather different gas in a plurality of collection boxes, need not repeatedly change collection box, has improved the collection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of gas sampling technology, and in particular to a gas sampling device for chemical safety testing. Background Technology

[0002] Chemical leaks pose a significant hazard, as some chemicals are toxic and corrosive. Therefore, to improve chemical safety, safety inspections are often necessary. During safety inspections, sampling is required, and for gaseous chemicals, gas sampling equipment must be used for gas sampling.

[0003] In the prior art, Chinese patent CN221484917U discloses a gas sampling device for chemical safety detection. The device can extend and retract the length of the telescopic suction nozzle according to the actual situation, so that the suction head of the telescopic suction nozzle is close to and aligned with the gas sampling position, thereby improving the sampling effect and increasing the distance between the sampling position and the sampling personnel, thus reducing the harm to the sampling personnel caused by chemical gas leakage at the sampling position.

[0004] However, it is worth considering that gas sampling equipment needs to change different sampling canisters each time it collects different gases, and repeatedly changing the sampling canisters affects the sampling efficiency.

[0005] Therefore, in order to solve the above problems, a more suitable facility that meets the needs of users is needed. Utility Model Content

[0006] In view of this, the purpose of this utility model is to propose a gas sampling device for chemical safety testing, so as to solve the problem of repeated replacement of the sampling tank affecting the sampling efficiency.

[0007] To achieve the above objectives, this utility model provides a gas sampling device for chemical safety testing, including a base, with several collection boxes fixedly connected to the top of the base. The bottom of each collection box is fixedly connected to an outlet pipe and an inlet pipe, and a valve is provided on the outlet pipe. A piston disc is provided inside the collection box, and a fixing column is fixedly connected to the top of the piston disc. A fixing disc located above the collection box is fixedly connected to the top of the fixing column. An air pump is fixedly connected to the top of the base. An air outlet and an air inlet are respectively provided above the air pump. The output end of the air pump and the air outlet are connected through a first hose, and the input end of the air pump and the air inlet are connected through a second hose. Rotary docking structures adapted to the air outlet and the air inlet are installed on the base. An adjustment component for adjusting the position of the air inlet is installed on the base.

[0008] Preferably, the rotating docking structure includes a fixed frame disposed above the base, and the collection box and the fixed frame are fixedly connected. A servo motor is fixedly connected to the fixed frame, and the output end of the servo motor is fixedly connected to the rotating frame. A shielding ring is fixedly sleeved on the outside of the rotating frame, and the air inlet pipe is located above the shielding ring. The top of the air outlet and the bottom of the shielding ring are fixedly connected, and the shielding ring is provided with an air hole that matches the air outlet.

[0009] Preferably, a sealing ring is fixedly connected to the bottom of the air intake pipe, and the bottom of the sealing ring is in contact with the top of the shielding ring.

[0010] Preferably, the bottom of the base is fixedly connected with several casters.

[0011] Preferably, the adjustment assembly includes a support frame fixedly installed on the air intake head, two prisms fixedly connected to the top of the base, movable sleeves slidably fitted on the outside of the prisms, several positioning holes opened on the prisms, at least one bolt passing through the movable sleeve, the bolt and the movable sleeve being connected by a threaded connection, and the bolt passing through the corresponding positioning hole, guide grooves being opened on the inner walls of both sides of the support frame, guide posts being fixedly connected to the opposite sides of the two movable sleeves, and the guide posts being located in the corresponding guide grooves, and clamping units adapted to the support frame being provided on the movable sleeves.

[0012] Preferably, the clamping unit includes clamping plates respectively disposed on opposite sides of the two movable sleeves. The sides of the two clamping plates that are close to each other are in contact with the support frame. Two lead screws pass through the clamping plates and are fixedly connected to the corresponding movable sleeves. Nuts are sleeved on the outside of the lead screws and are located on the side of the clamping plate away from the movable sleeves.

[0013] The beneficial effects of this utility model are as follows: Operators adjust the air inlet head to a preset position using the adjustment components, and connect the air outlet head to a corresponding air inlet pipe via the rotating docking structure. The air pump is then started, drawing gas into the first hose through the air inlet head and the second hose. The gas then passes through the first hose, the air outlet head, and the air inlet pipe into the corresponding collection box. The gas pushes the piston disc, the fixing column, and the fixing plate upwards. When other gases need to be collected, the air outlet head is connected to another air inlet pipe via the rotating docking structure. Starting the air pump again allows gas to be collected into the next collection box. To remove gas from the collection box, the valve on the air outlet pipe is opened, and the operator presses the fixing plate. The fixing plate drives the piston disc downwards via the fixing column, allowing the gas in the collection box to be discharged through the air outlet pipe. This allows for the collection of different gases from several collection boxes without the need for repeated box replacements, thus improving collection efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the shielding ring in an embodiment of the present invention; Figure 3 This is a cross-sectional structural diagram of the data collection box according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the support frame in an embodiment of the present utility model.

[0016] The diagram is marked as follows: 1. Base; 2. Data collection box; 3. Air outlet pipe; 4. Air inlet pipe; 5. Air pump; 6. Air outlet head; 7. Air inlet head; 8. First hose; 9. Second hose; 10. Shielding ring; 11. Air hole; 12. Fixing frame; 13. Servo motor; 14. Rotating frame; 15. Piston disc; 16. Fixing column; 17. Fixing plate; 18. Sealing ring; 19. Support frame; 20. Prism; 21. Movable sleeve; 22. Guide column; 23. Guide groove; 24. Positioning hole; 25. Bolt; 26. Clamping plate; 27. Lead screw; 28. Nut; 29. ​​Caster wheel. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] This specification provides one or more embodiments of a gas sampling device for chemical safety detection, such as... Figure 1 , Figure 2 and Figure 3 As shown, it includes a base 1, and several collection boxes 2 are fixedly connected to the top of the base 1. The bottom of the collection box 2 is fixedly connected to an air outlet pipe 3 and an air inlet pipe 4, and a valve is provided on the air outlet pipe 3. A piston plate 15 is provided inside the collection box 2. A fixing column 16 is fixedly connected to the top of the piston plate 15, and a fixing plate 17 located above the collection box 2 is fixedly connected to the top of the fixing column 16. An air pump 5 is fixedly connected to the top of the base 1. An air outlet 6 and an air inlet 7 are respectively located above the air pump 5. The output end of the air pump 5 and the air outlet 6 are connected via a first flexible hose 8, and the input end of the air pump 5 and the air inlet 7 are connected via a second flexible hose 9. The base 1 is equipped with rotating docking structures adapted to the air outlet 6 and the air inlet pipe 4, respectively. An adjustment component for adjusting the position of the air inlet 7 is also installed on the base 1. The operator adjusts the air inlet 7 to a preset position using the adjustment component, and then docks the air outlet 6 with a corresponding air inlet pipe 4 using the rotating docking structure. The air pump 5 is then started, and the air pump 5 draws gas into the first flexible hose 8 through the air inlet 7 and the second flexible hose 9. The gas then passes through the first flexible hose 8 and exits through the second flexible hose 9. The head 6 and the inlet pipe 4 enter the corresponding collection box 2, and the gas pushes the piston disc 15, the fixed column 16 and the fixed plate 17 to move upward. When other gases need to be collected, the outlet head 6 is connected to another inlet pipe 4 through the rotating docking structure. When the air pump 5 is started again, the gas can be collected into the next collection box 2 again. When the gas in the collection box 2 needs to be removed, the valve on the outlet pipe 3 is opened, and the operator presses the fixed plate 17. The fixed plate 17 drives the piston disc 15 to move downward through the fixed column 16, and the gas in the collection box 2 can be discharged through the outlet pipe 3. Different gases can be collected in several collection boxes 2 without repeatedly changing the collection box 2, which improves the collection efficiency.

[0020] In embodiments of this utility model, such as Figure 1 , Figure 2 and Figure 3As shown, the rotating docking structure includes a fixed frame 12 mounted on the base 1, with the acquisition box 2 and the fixed frame 12 fixedly connected. A servo motor 13 is fixedly connected to the fixed frame 12, and a rotating frame 14 is fixedly connected to the output end of the servo motor 13. A shielding ring 10 is fixedly fitted on the outside of the rotating frame 14, and the air inlet pipe 4 is located above the shielding ring 10. The top of the air outlet 6 is fixedly connected to the bottom of the shielding ring 10, and the shielding ring 10 has an air hole 11 adapted to the air outlet 6. A sealing ring 18 is fixedly connected to the bottom of the air inlet pipe 4, and the bottom of the sealing ring 18 contacts the top of the shielding ring 10. Several universal wheels 29 are fixedly connected to the bottom of the base 1; the sealing ring 18... The design seals the connection between the air inlet pipe 4 and the shielding ring 10. The shielding ring 10 shields and seals the air inlet pipe 4. The servo motor 13 drives the rotating frame 14 and the shielding ring 10 to rotate. The shielding ring 10 drives the air hole 11 and the air outlet 6 to move below the corresponding air inlet pipe 4. The gas can then enter the corresponding air inlet pipe 4 through the air outlet 6 and the air hole 11. When the shielding ring 10 rotates again, the air hole 11 moves away from below the air inlet pipe 4. Through the cooperation of the shielding ring 10 and the sealing ring 18, the air inlet pipe 4 is shielded and sealed, preventing the gas in the collection box 2 from overflowing through the air inlet pipe 4. The design of the universal wheels 29 makes it easy to move the driving base 1 to the preset position.

[0021] In embodiments of this utility model, such as Figure 1 and Figure 4As shown, the adjustment assembly includes a support frame 19 fixedly mounted on the air intake head 7. Two prisms 20 are fixedly connected to the top of the base 1. Movable sleeves 21 are slidably fitted onto the outside of the prisms 20. Several positioning holes 24 are provided on the prisms 20. At least one bolt 25 passes through the movable sleeve 21. The bolt 25 and the movable sleeve 21 are connected by a threaded connection, and the bolt 25 passes through the corresponding positioning hole 24. Guide grooves 23 are respectively provided on the inner walls of both sides of the support frame 19. Guide posts 22 are fixedly connected to the opposite sides of the two movable sleeves 21, and the guide posts 22 are located within the corresponding guide grooves 23. A clamping unit adapted to the support frame 19 is provided on the movable sleeve 21. The clamping unit includes clamping plates 26 respectively disposed on the opposite sides of the two movable sleeves 21. The adjacent sides of the two clamping plates 26 are in contact with the support frame 19. Two lead screws 27 pass through the clamping plates 26. The lead screws 27 and the corresponding movable sleeves 21... 1. Fixed connection: A nut 28 is sleeved on the outside of the lead screw 27, and the nut 28 is located on the side of the clamping plate 26 away from the movable sleeve 21. The operator drives the movable sleeve 21 to slide relative to the prism 20, adjusting the height of the movable sleeve 21 and the support frame 19. After the height of the air inlet head 7 and the support frame 19 is adjusted, the operator drives the bolt 25 to pass through the corresponding movable sleeve 21, and the bolt 25 passes through the corresponding positioning hole 24, so that the movable sleeve 21 is fixed relative to the prism 20 and the base 1. The operator drives the support frame 19 and the air inlet head 7 to move relative to the movable sleeve 21, so that the guide post 22 slides in the guide groove 23, changing the position of the air inlet head 7. When the position of the air inlet head 7 is adjusted, the operator drives the nut 28 to rotate, so that the nut 28 pushes the clamping plate 26 to abut against the support frame 19. Finally, the two clamping plates 26 hold the support frame 19, so that the support frame 19 and the air inlet head 7 are fixed relative to the movable sleeve 21.

[0022] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0023] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A gas sampling device for chemical safety detection, comprising a base (1), characterized in that, Several collection boxes (2) are fixedly connected above the base (1). The bottom of the collection box (2) is fixedly connected to an air outlet pipe (3) and an air inlet pipe (4). A valve is provided on the air outlet pipe (3). A piston plate (15) is provided inside the collection box (2). A fixing column (16) is fixedly connected to the top of the piston plate (15). A fixing plate (17) located above the collection box (2) is fixedly connected to the top of the fixing column (16). An air pump (5) is fixedly connected to the top of the base (1). An air outlet (6) and an air inlet (7) are respectively provided above the air pump (5). The output end of the air pump (5) and the air outlet (6) are connected through a first hose (8). The input end of the air pump (5) and the air inlet (7) are connected through a second hose (9). A rotating docking structure adapted to the air outlet (6) and the air inlet pipe (4) is installed on the base (1). An adjustment component for adjusting the position of the air inlet (7) is installed on the base (1).

2. The gas sampling apparatus for chemical safety detection according to claim 1, wherein The rotating docking structure includes a fixed frame (12) set above the base (1), and the collection box (2) and the fixed frame (12) are fixedly connected. A servo motor (13) is fixedly connected on the fixed frame (12), and a rotating frame (14) is fixedly connected to the output end of the servo motor (13). A shielding ring (10) is fixedly sleeved on the outside of the rotating frame (14), and the air inlet pipe (4) is located above the shielding ring (10). The top of the air outlet (6) and the bottom of the shielding ring (10) are fixedly connected, and an air hole (11) adapted to the air outlet (6) is opened on the shielding ring (10).

3. The gas sampling device for chemical safety detection according to claim 2, wherein The bottom of the air intake pipe (4) is fixedly connected to a sealing ring (18), and the bottom of the sealing ring (18) is in contact with the top of the shielding ring (10).

4. The gas sampling device for chemical safety detection according to claim 1, wherein The bottom of the base (1) is fixedly connected with several casters (29).

5. The gas sampling device for chemical safety detection according to claim 1, wherein The adjustment assembly includes a support frame (19) fixedly installed on the air intake head (7), two prisms (20) fixedly connected to the top of the base (1), a movable sleeve (21) is slidably sleeved on the outside of the prism (20), a number of positioning holes (24) are opened on the prism (20), at least one bolt (25) passes through the movable sleeve (21), the bolt (25) and the movable sleeve (21) are connected by thread, and the bolt (25) passes through the corresponding positioning hole (24). Guide grooves (23) are opened on the inner walls of both sides of the support frame (19), and guide posts (22) are fixedly connected to the two movable sleeves (21) on the side away from each other, and the guide posts (22) are located in the corresponding guide grooves (23). The movable sleeve (21) is provided with a clamping unit that is compatible with the support frame (19).

6. The gas sampling device for chemical safety detection according to claim 5, wherein The clamping unit includes clamping plates (26) respectively disposed on the opposite side of the two movable sleeves (21). The side of the two clamping plates (26) that is close to each other is in contact with the support frame (19). Two lead screws (27) pass through the clamping plates (26). The lead screws (27) are fixedly connected to the corresponding movable sleeves (21). Nuts (28) are sleeved on the outside of the lead screws (27), and the nuts (28) are located on the side of the clamping plates (26) that is away from the movable sleeves (21).

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