Gas sampler for chemical safety detection

Abstract

The utility model provides a gas sampler for chemical safety detection, which belongs to the technical field of chemical safety and comprises an air suction cylinder, and an air suction plate is slidably connected in the air suction cylinder. The piston rod is fixedly connected to the lower end of the air suction plate; the air storage tank is fixedly connected to the lower end of the connecting pipe, the butt joint block and the mounting block are matched in an inserted mode, the design that the fixing hole is inserted into the positioning groove is combined, and therefore rapid locking of the connecting pipe and the conveying pipe is achieved; the problem of tedious operation of traditional threaded connection is avoided, meanwhile, the butt joint stability is improved, the stress plate continuously presses the butt joint block downwards through cooperation of the spring and the vertical rod, it is ensured that the inserting groove is tightly attached to the butt joint rod, and gas leakage is effectively prevented.

Description

Technical Field

[0001] This utility model belongs to the field of chemical safety technology, specifically relating to a gas sampler for chemical safety detection. Background Technology

[0002] Chemical production processes involve large quantities of flammable, explosive, and toxic gases (such as hydrogen sulfide, chlorine, and volatile organic compounds). Leaks or excessive concentrations of these gases can lead to major safety accidents such as fires, explosions, and poisoning. Therefore, real-time and accurate gas sampling and detection is one of the core aspects of chemical safety management.

[0003] In chemical production processes, gas sampling is a crucial step in safety monitoring. Traditional gas samplers typically suffer from the following drawbacks:

[0004] (1) The air extraction cylinder and the air storage tank are connected by threads or snaps, which is cumbersome to disassemble and assemble and the sealing performance is easily affected by wear.

[0005] (2) Poor operational stability during sampling, the gripping part is prone to slipping, resulting in low suction efficiency;

[0006] (3) The lack of a quick locking structure makes the parts easy to loosen after docking, leading to the risk of gas leakage. Utility Model Content

[0007] The purpose of this invention is to provide a gas sampler for chemical safety testing, which aims to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A gas sampler for chemical safety detection, comprising:

[0010] An air extraction cylinder, wherein an air suction plate is slidably connected inside the air extraction cylinder;

[0011] A piston rod, which is fixedly connected to the lower end of the suction plate;

[0012] A transmission pipe is fixedly connected to the circumferential surface of the vacuum cylinder, and one end of the transmission pipe is detachably connected to a connecting pipe.

[0013] A gas storage tank is fixedly connected to the lower end of the connecting pipe; a spring is fixedly connected to the circumferential surface of the connecting pipe, and a force-bearing plate is fixedly connected to the upper end of the spring.

[0014] Two docking blocks, both of which are fixedly connected to the circumferential surface of the connecting pipe;

[0015] Two mounting blocks, both of which are fixedly connected to the circumferential surface of the transmission pipe;

[0016] Two insertion slots are respectively opened at one end of two mating blocks; two mating rods are respectively fixedly connected to one end of two mounting blocks, and the two mating rods are respectively movably inserted into the two insertion slots.

[0017] Two positioning slots are respectively opened at the upper ends of the two docking blocks and the two docking rods;

[0018] Two fixing holes are fixedly connected to the lower end of the force-bearing plate, and the two fixing holes are respectively movably inserted into the two positioning slots.

[0019] In a preferred embodiment of this invention, a limiting plate is fixedly connected to the lower end of the piston rod, and the diameter of the limiting plate is larger than the diameter of the piston rod.

[0020] As a preferred embodiment of this utility model, a handle is fixedly connected to the lower end of the limiting plate, and the circumferential surface of the handle is provided with multiple anti-slip textures.

[0021] In a preferred embodiment of this utility model, a vertical rod is fixedly connected to the circumferential surface of the connecting pipe, a vertical hole is provided at the upper end of the force plate, and the force plate is slidably connected to the circumferential surface of the vertical rod through the vertical hole, and the spring is sleeved on the circumferential surface of the vertical rod.

[0022] In a preferred embodiment of this utility model, an anti-detachment plate is fixedly connected to the upper end of the vertical rod, and the diameter of the anti-detachment plate is larger than the diameter of the vertical rod.

[0023] As a preferred embodiment of this utility model, two mounting rods are fixedly connected to the circumferential surface of the air extraction cylinder, and a mounting shell is fixedly connected to one end of each of the two mounting rods.

[0024] As a preferred embodiment of this utility model, an air check valve is provided on the circumferential surface of the connecting pipe, and an anti-slip grip ring is fixedly connected to the circumferential surface of the air extraction cylinder.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] 1. In this solution, the connection between the connecting block and the mounting block is made possible by inserting the fixing hole into the positioning groove, which enables the quick locking of the connecting pipe and the transmission pipe. This avoids the cumbersome operation of traditional threaded connections and improves the stability of the connection. The cooperation between the spring and the vertical rod causes the force plate to continuously press down on the connecting block, ensuring that the insertion groove and the connecting rod fit tightly together and effectively preventing gas leakage.

[0027] 2. In this solution, the handle surface is provided with anti-slip texture, and the double grip structure with anti-slip grip ring improves the stability of operation; the linkage design between the limiting plate and the piston rod prevents excessive air extraction from causing the suction plate to detach from the suction cylinder; the air tank is connected to the transmission pipe through a detachable connecting pipe for easy replacement and carrying; the housing can integrate spare parts to improve on-site testing efficiency. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0029] Figure 1 This is a front perspective view of the present invention;

[0030] Figure 2 In this utility model Figure 1 A magnified view of a section at point A in the middle;

[0031] Figure 3 This is a side sectional perspective view of the present invention;

[0032] Figure 4 In this utility model Figure 3 A magnified view of a section at point B in the middle;

[0033] Figure 5 This is a perspective view of the main cross-section of this utility model.

[0034] In the diagram: 1. Air pump; 2. Anti-slip grip ring; 3. Limiting plate; 4. Handle; 5. Housing; 6. Transmission pipe; 7. Air check valve; 8. Connecting pipe; 9. Connecting block; 10. Mounting block; 11. Connecting rod; 12. Fixing hole; 13. Force plate; 14. Vertical rod; 15. Spring; 16. Anti-detachment plate; 17. Piston rod; 18. Suction plate; 19. Mounting rod; 20. Air tank. Detailed Implementation

[0035] 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.

[0036] Example 1

[0037] Please see Figure 1-5 The present invention provides the following technical solution:

[0038] A gas sampler for chemical safety detection, comprising:

[0039] A vacuum pump 1, with a suction plate 18 slidably connected inside the vacuum pump 1;

[0040] Piston rod 17 is fixedly connected to the lower end of suction plate 18;

[0041] Transmission pipe 6 is fixedly connected to the circumferential surface of the vacuum cylinder 1, and

[0042] One end of the transmission pipe 6 is detachably connected to the connecting pipe 8.

[0043] Gas storage tank 20 is fixedly connected to the lower end of connecting pipe 8; spring 15 is fixedly connected to the circumferential surface of connecting pipe 8, and a force-bearing plate 13 is fixedly connected to the upper end of spring 15.

[0044] Two docking blocks 9 are fixedly connected to the circumferential surface of the connecting pipe 8;

[0045] Two mounting blocks 10 are fixedly connected to the circumferential surface of the transmission pipe 6;

[0046] Two insertion slots are respectively opened at one end of two mating blocks 9; two mating rods 11 are respectively fixedly connected to one end of two mounting blocks 10, and the two mating rods 11 are respectively movably inserted into the two insertion slots.

[0047] Two positioning slots are respectively opened at the upper ends of the two docking blocks 9 and the two docking rods 11;

[0048] Two fixing holes 12 are fixedly connected to the lower end of the force-bearing plate 13, and the two fixing holes 12 are respectively movably inserted into the two positioning grooves.

[0049] In a specific embodiment of this utility model, the gas sampler includes a suction cylinder 1, inside which is a suction plate 18 that can slide up and down. A piston rod 17 is welded and fixed to the lower end of the suction plate 18. A transmission pipe 6 is welded to the outer wall of the suction cylinder 1. The right end of the transmission pipe 6 is detachably connected to a connecting pipe 8 via a thread. A gas storage tank 20 is fixed to the lower end of the connecting pipe 8 by a flange. Two mating blocks 9 are symmetrically welded to the outer wall of the connecting pipe 8. Two mounting blocks 10 are symmetrically welded to the outer wall of the transmission pipe 6. An insertion groove is provided at the right end of the mating block 9. A cylindrical connecting rod 11 is welded to the right end of the mounting block 10. The connecting rod 11 is inserted into the insertion groove. Rectangular positioning grooves are opened on the top of both the connecting block 9 and the connecting rod 11. Two cylindrical fixing holes 12 are welded to the lower end of the force plate 13. The fixing holes 12 are inserted into the positioning grooves to form a mechanical lock. In actual use, pulling down the handle 4 causes the suction plate 18 to slide, and a negative pressure is formed in the suction cylinder 1. Releasing the handle 4 causes the suction plate 18 to reset under the action of air pressure. The gas enters the gas storage tank 20 through the transmission pipe 6 and the connecting pipe 8.

[0050] Please refer to the details. Figure 2 A limiting plate 3 is fixedly connected to the lower end of the piston rod 17. The diameter of the limiting plate 3 is larger than the diameter of the piston rod 17. A handle 4 is fixedly connected to the lower end of the limiting plate 3. Multiple anti-slip textures are formed on the circumferential surface of the handle 4.

[0051] In this embodiment: A circular limiting plate 3 is welded to the lower end of the piston rod 17. The diameter of the limiting plate 3 is twice the diameter of the piston rod 17. It is used to limit the upward stroke of the piston rod 17 and prevent the suction plate 18 from detaching from the suction cylinder 1. A rubber handle 4 is glued to the lower end of the limiting plate 3. The outer circumference of the handle 4 is machined with V-shaped anti-slip textures that are evenly distributed, so that the operator's hand will not easily slip when pulling the handle 4.

[0052] Please refer to the details. Figure 2 A vertical rod 14 is fixedly connected to the circumferential surface of the connecting pipe 8. A vertical hole is opened at the upper end of the force plate 13, and the force plate 13 is slidably connected to the circumferential surface of the vertical rod 14 through the vertical hole. A spring 15 is sleeved on the circumferential surface of the vertical rod 14.

[0053] In this embodiment: a vertical rod 14 is welded to the outer wall of the connecting pipe 8, a through hole is opened in the center of the force plate 13 and it is slidably sleeved on the vertical rod 14, and a spring 15 is sleeved on the outside of the vertical rod 14. The upper end of the spring 15 presses against the force plate 13 and the lower end presses against the outer wall of the connecting pipe 8. When the force plate 13 is pressed down, the spring 15 is compressed and stores force. After being released, the spring 15 rebounds and pushes the fixing hole 12 into the positioning groove.

[0054] Please refer to the details. Figure 3An anti-detachment plate 16 is fixedly connected to the upper end of the vertical rod 14. The diameter of the anti-detachment plate 16 is larger than the diameter of the vertical rod 14. Two mounting rods 19 are fixedly connected to the circumferential surface of the air pump 1. One end of the two mounting rods 19 is fixedly connected to a housing 5. An air check valve 7 is provided on the circumferential surface of the connecting pipe 8. An anti-slip grip ring 2 is fixedly connected to the circumferential surface of the air pump 1.

[0055] In this embodiment: an anti-detachment plate 16 is riveted to the top of the vertical rod 14. The anti-detachment plate 16 is a circular baffle with a diameter larger than that of the vertical rod 14 to prevent the force plate 13 from detaching from the top of the vertical rod 14. Two mounting rods 19 are welded to the outer wall of the air pump 1. The ends of the mounting rods 19 are fixed with bolts to a plastic housing 5. The housing 5 has a slot for storing the air tank 20. An air check valve 7 is installed in the middle section of the connecting pipe 8. The air check valve 7 flows from the transmission pipe 6 to the air tank 20 to prevent gas backflow. The outer wall of the air pump 1 is injection molded with an anti-slip grip ring 2. The surface of the anti-slip grip ring 2 has raised textures to facilitate one-handed fixation of the air pump 1.

[0056] Working principle and usage process of this utility model:

[0057] The gas sampler includes a suction cylinder 1, inside which is a suction plate 18 that can slide up and down. A piston rod 17 is welded and fixed to the lower end of the suction plate 18. A transmission pipe 6 is welded to the outer wall of the suction cylinder 1. The right end of the transmission pipe 6 is detachably connected to a connecting pipe 8 via a thread. A gas storage tank 20 is fixed to the lower end of the connecting pipe 8 by a flange. Two mating blocks 9 are symmetrically welded to the outer wall of the connecting pipe 8. Two mounting blocks 10 are symmetrically welded to the outer wall of the transmission pipe 6. An insertion groove is opened at the right end of the mating block 9, and the right end of the mounting block 10... A cylindrical connecting rod 11 is welded and inserted into the insertion groove. Rectangular positioning grooves are opened on the top of both the connecting block 9 and the connecting rod 11. Two cylindrical fixing holes 12 are welded to the lower end of the force plate 13. The fixing holes 12 are inserted into the positioning grooves to form a mechanical lock. In actual use, pulling down the handle 4 causes the suction plate 18 to slide, creating a negative pressure in the suction cylinder 1. Releasing the handle 4 causes the suction plate 18 to reset under the action of air pressure. The gas enters the gas storage tank 20 through the transmission pipe 6 and the connecting pipe 8.

[0058] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any 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 sampler for chemical safety detection, characterized in that, include: An air extraction cylinder (1) is slidably connected to an air suction plate (18). Piston rod (17), which is fixedly connected to the lower end of the suction plate (18); The transmission pipe (6) is fixedly connected to the circumferential surface of the vacuum cylinder (1), and One end of the transmission pipe (6) is detachably connected to a connecting pipe (8): Gas storage tank (20), the gas storage tank (20) is fixedly connected to the lower end of the connecting pipe (8); spring (15), the spring (15) is fixedly connected to the circumferential surface of the connecting pipe (8), and the upper end of the spring (15) is fixedly connected to a force plate (13). Two docking blocks (9) are fixedly connected to the circumferential surface of the connecting pipe (8); Two mounting blocks (10) are fixedly connected to the circumferential surface of the transmission pipe (6); Two insertion slots are respectively opened at one end of the two mating blocks (9); Two connecting rods (11) are fixedly connected to one end of two mounting blocks (10), and the two connecting rods (11) are movably inserted into two insertion slots; Two positioning slots are respectively opened at the upper ends of the two docking blocks (9) and the two docking rods (11); Two fixing holes (12) are fixedly connected to the lower end of the force plate (13), and the two fixing holes (12) are respectively movably inserted into the two positioning grooves.

2. The gas sampler for chemical safety detection according to claim 1, characterized in that, A limiting plate (3) is fixedly connected to the lower end of the piston rod (17), and the diameter of the limiting plate (3) is larger than the diameter of the piston rod (17).

3. A gas sampler for chemical safety detection according to claim 2, characterized in that, The lower end of the limiting plate (3) is fixedly connected to a handle (4), and the circumferential surface of the handle (4) is provided with multiple anti-slip textures.

4. A gas sampler for chemical safety detection according to claim 3, characterized in that, A vertical rod (14) is fixedly connected to the circumferential surface of the connecting pipe (8). A vertical hole is opened at the upper end of the force plate (13), and the force plate (13) is slidably connected to the circumferential surface of the vertical rod (14) through the vertical hole. The spring (15) is sleeved on the circumferential surface of the vertical rod (14).

5. A gas sampler for chemical safety detection according to claim 4, characterized in that, An anti-detachment plate (16) is fixedly connected to the upper end of the vertical rod (14), and the diameter of the anti-detachment plate (16) is larger than the diameter of the vertical rod (14).

6. A gas sampler for chemical safety detection according to claim 5, characterized in that, Two mounting rods (19) are fixedly connected to the circumferential surface of the air extraction cylinder (1), and a housing (5) is fixedly connected to one end of the two mounting rods (19).

7. A gas sampler for chemical safety detection according to claim 6, characterized in that, An air check valve (7) is provided on the circumferential surface of the connecting pipe (8), and an anti-slip grip ring (2) is fixedly connected to the circumferential surface of the air pump (1).

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