Chemical gas safety detection sampling device

Abstract

The utility model discloses a chemical gas safety detection sampling device which comprises a collecting barrel, an inner telescopic barrel is inserted into the bottom of the collecting barrel, and the surface of the inner telescopic barrel is in extrusion sliding connection with the inner wall of the collecting barrel. According to the chemical gas safety detection sampling device, by rotating a rotary adjusting middle cylinder and utilizing the thread displacement principle of the rotary adjusting middle cylinder and an inner telescopic cylinder, a collecting cylinder is driven to stretch and retract upwards on the surface of the inner telescopic cylinder, and a conical piston cylinder is driven to pull and displace upwards, so that chemical gas of equipment to be sampled is extracted; the volume of the sampling device can be adjusted in real time according to the amount of the sampled chemical gas, and the conical piston cylinder and the sealing piston push disc can be driven to move upwards in the collecting cylinder by utilizing the thread propelling principle of the center rod and the collecting cylinder, so that the chemical gas can be sampled and stored after the collecting cylinder and the inner telescopic cylinder stretch out and draw back. And the effect of accommodating the amount of sampled chemical gas is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas sampling devices, in particular to a chemical gas safety detection sampling device. Background Art

[0002] During the transportation and transfer of chemical gases, it is necessary to regularly sample and test the gas materials to monitor their composition content in real time. However, the existing chemical gas safety detection sampling devices have certain drawbacks in actual operation. The volume of chemical gas sampled is fixed, and its collection capacity cannot be expanded and adjusted accordingly according to demand, so there are certain inconveniences in actual use. Summary of the invention

[0003] In view of the shortcomings of the prior art, the utility model provides a chemical gas safety detection sampling device, which solves certain drawbacks of the existing chemical gas safety detection sampling device in actual operation. The volume of chemical gas sampled is fixed, and its collection capacity cannot be expanded and adjusted accordingly according to demand. Therefore, there are certain inconveniences in actual use.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a chemical gas safety detection sampling device, comprising a collecting tube, an inner telescopic tube is inserted into the bottom of the collecting tube, the surface of the inner telescopic tube is squeezed and slidably connected with the inner wall of the collecting tube, a center rod is inserted into the top of the collecting tube, a threaded groove is provided on the surface of the center rod, the inner wall of the top plate of the collecting tube is threadedly connected with the surface of the center rod, the bottom of the collecting tube is rotatably connected with a rotating adjustment middle tube, the surface of the inner telescopic tube is provided with a threaded groove, the inner wall of the rotating adjustment middle tube is threadedly sleeved with the surface of the inner telescopic tube, the bottom of the center rod extends to the interior of the inner telescopic tube, the end of the center rod is inserted into the interior of the tapered piston tube, and the lower surface of the center rod is threaded with the tapered piston tube The inner wall of the plug-in adjusting sleeve is rotatably connected, the lower surface of the center rod is fixedly sleeved with a limited lifting support cylinder, the bottom of the center rod is fixedly connected with a plug-in adjusting sleeve, the bottom of the plug-in adjusting sleeve is inserted with a sealing opening and closing cylinder, the surface of the sealing opening and closing cylinder is threadedly connected to the inner wall of the plug-in adjusting sleeve, the bottom of the sealing opening and closing cylinder is fixedly connected with a mounting docking plate, the top of the plug-in adjusting sleeve is fixedly inserted with two circulation cylinders, the top of the circulation cylinder is inserted into the interior of the inner telescopic cylinder, the interior of the inner telescopic cylinder is connected with the interior of the plug-in adjusting sleeve through the circulation cylinder, the bottom of the conical piston cylinder is fixedly connected with two blocking cylinders used in conjunction with the circulation cylinders, the surface of the center rod is sleeved with an inner cylinder, and the annular outer surface of the inner cylinder is fixedly sleeved with a sealing piston push plate.

[0005] Preferably, a conical pressure cylinder is fixedly connected to the top of the inner cavity of the plug-in adjustment sleeve, a plug-in cylinder is fixedly connected to the bottom of the conical pressure cylinder, and an opening for use with the plug-in cylinder is provided in the middle of the mounting docking plate.

[0006] Preferably, a clamping stabilizing block is fixedly connected to the bottom end of the center rod, and the surface of the clamping stabilizing block is rotatably sleeved with the inner wall of the conical piston cylinder.

[0007] Preferably, a sealing sleeve is fixedly connected to the top of the sealing piston push plate, and the inner wall of the sealing sleeve is squeezed and movably sleeved on the surface of the center rod.

[0008] Preferably, a rotary adjustment cap is fixedly connected to the top of the central rod, and a pressure relief valve is fixedly installed on the top of the collecting cylinder.

[0009] The utility model provides a chemical gas safety detection sampling device, which has the following beneficial effects:

[0010] (1) The chemical gas safety detection sampling device, through the setting of the collecting tube, and the coordinated use of the inner telescopic tube, the center rod, the rotating adjustment middle tube, the conical piston tube, the limit lifting support tube, the plug-in adjustment sleeve, the sealing opening and closing tube, the installation docking plate, the flow tube, the plugging tube, the pressure relief valve, the rotating adjustment cap, the inner tube and the sealing piston push plate, achieves the effect of driving the conical pressure tube and the plug-in tube to move upward through the rotation of the plug-in adjustment sleeve, so that the inside of the plug-in adjustment sleeve is connected with the sampling docking port of the device to be sampled, and then by rotating the rotating adjustment middle tube, the collecting tube is driven on the surface of the inner telescopic tube by utilizing the principle of thread displacement of the rotating adjustment middle tube and the inner telescopic tube. The upward telescopic displacement causes the tapered piston cylinder to be pulled and displaced upward inside the inner telescopic cylinder, thereby achieving the purpose of extracting the chemical gas from the equipment to be sampled, and enabling the sampling device to adjust the capacity in real time according to the amount of sampled chemical gas. Moreover, when it is necessary to increase the sampling capacity of the chemical gas, the center rod is rotated, and the threaded propulsion principle of the center rod and the collecting cylinder is utilized to drive the tapered piston cylinder and the sealing piston push plate to move upward inside the collecting cylinder, so that the collecting cylinder and the inner telescopic cylinder can sample and store the chemical gas after being telescoped and extended, greatly increasing the amount of sampled chemical gas that can be accommodated, making it more convenient in actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a front view of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0013] Figure 3 It is an internal schematic diagram of the expansion of the structure of the utility model;

[0014] Figure 4 The utility model structure Figure 2 A magnified schematic diagram of point A;

[0015] Figure 5 The utility model structure Figure 3 An enlarged schematic diagram of point B;

[0016] Figure 6 The utility model structure Figure 3 An enlarged schematic diagram of point C;

[0017] Figure 7 The utility model structure Figure 2 An enlarged schematic diagram of point D.

[0018] In the figure: 1. collecting cylinder; 2. inner telescopic cylinder; 3. center rod; 4. rotating adjustment middle cylinder; 5. conical piston cylinder; 6. clamping stabilizing block; 7. limit lifting cylinder; 8. plug-in adjustment sleeve; 9. sealing opening and closing cylinder; 10. installation docking plate; 11. circulation cylinder; 12. blocking cylinder; 13. conical pressure cylinder; 14. plug-in cylinder; 15. pressure relief valve; 16. rotating adjustment cap; 17. inner cylinder; 18. sealing piston push plate; 19. sealing sleeve gasket. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figure 1-7As shown, the utility model provides a technical solution: a chemical gas safety detection sampling device, including a collecting tube 1, an inner telescopic tube 2 is inserted into the bottom of the collecting tube 1, the surface of the inner telescopic tube 2 is squeezed and slidably connected with the inner wall of the collecting tube 1, a center rod 3 is inserted into the top of the collecting tube 1, a threaded groove is provided on the surface of the center rod 3, the inner wall of the top plate of the collecting tube 1 is threadedly connected with the surface of the center rod 3, the bottom of the collecting tube 1 is rotatably connected with a rotating adjustment middle tube 4, the surface of the inner telescopic tube 2 is provided with a threaded groove, the inner wall of the rotating adjustment middle tube 4 is threadedly sleeved with the surface of the inner telescopic tube 2, and through the arrangement of the inner telescopic tube 2 and the rotating adjustment middle tube 4, the rotating rotation adjustment middle tube 4 is rotated, and the threaded position of the rotating adjustment middle tube 4 and the inner telescopic tube 2 is utilized. The collecting tube 1 is telescopically displaced upward on the surface of the inner telescopic tube 2, so that it drives the tapered piston tube 5 to be pulled and displaced upward inside the inner telescopic tube 2, thereby achieving the effect of extracting the chemical gas from the equipment to be sampled, and enabling the sampling device to adjust the capacity in real time according to the amount of sampled chemical gas. The bottom of the center rod 3 extends to the inside of the inner telescopic tube 2, and the end of the center rod 3 is inserted into the inside of the tapered piston tube 5. The lower surface of the center rod 3 is rotatably connected to the inner wall of the tapered piston tube 5, and the bottom end of the center rod 3 is fixedly connected with a clamping stabilizing block 6. The surface of the clamping stabilizing block 6 is rotatably sleeved with the inner wall of the tapered piston tube 5. Through the setting of the clamping stabilizing block 6, the connection between the center rod 3 and the tapered piston tube 5 is strengthened. In order to improve the connection strength, the lower surface of the center rod 3 is fixedly sleeved with a limited lifting support tube 7, the bottom of the center rod 3 is fixedly connected with a plug-in adjustment sleeve 8, the bottom of the plug-in adjustment sleeve 8 is inserted with a sealing opening and closing tube 9, the surface of the sealing opening and closing tube 9 is threadedly connected to the inner wall of the plug-in adjustment sleeve 8, the bottom of the sealing opening and closing tube 9 is fixedly connected with a mounting docking plate 10, the top of the plug-in adjustment sleeve 8 is fixedly inserted with two circulation tubes 11, the top of the circulation tube 11 is inserted into the interior of the inner telescopic tube 2, the interior of the inner telescopic tube 2 is connected with the interior of the plug-in adjustment sleeve 8 through the circulation tube 11, and the bottom of the tapered piston tube 5 is fixedly connected with two blocking tubes 12 used in conjunction with the circulation tube 11, and the setting of the blocking tube 12 plays a role in sealing the interior of the inner telescopic tube 2 To achieve the sealing effect, the top of the inner cavity of the plug-in adjusting sleeve 8 is fixedly connected with a conical pressure cylinder 13, and the bottom of the conical pressure cylinder 13 is fixedly connected with a plug-in cylinder 14. An opening for cooperating with the plug-in cylinder 14 is opened in the middle of the installation docking plate 10. Through the arrangement of the conical pressure cylinder 13 and the plug-in cylinder 14, the conical pressure cylinder 13 and the plug-in cylinder 14 can be used to seal and plug the connecting port of the sealing opening and closing cylinder 9 and the installation docking plate 10. The surface of the center rod 3 is sleeved with an inner cylinder 17, and the annular outer surface of the inner cylinder 17 is fixedly sleeved with a sealing piston push plate 18. The top of the sealing piston push plate 18 is fixedly connected with a sealing sleeve gasket 19, and the inner wall of the sealing sleeve gasket 19 is squeezed and movably sleeved on the surface of the center rod 3. Through the arrangement of the sealing sleeve gasket 19,This makes the contact between the sealing piston push plate 18 and the center rod 3 more sealed. The top of the center rod 3 is fixedly connected with a rotating adjustment cap 16, and the top of the collection tube 1 is fixedly installed with a pressure relief valve 15. Through the setting of the pressure relief valve 15, the internal space above the collection tube 1 can be depressurized at any time.

[0021] When in use, first install and connect the docking plate 10 with the sampling docking port of the device to be sampled, and then rotate the plug-in adjusting sleeve 8 to make the collecting tube 1 and the inner telescopic tube 2 rotate synchronously, and utilize the threaded sleeve displacement principle of the plug-in adjusting sleeve 8 and the sealing opening and closing tube 9 to drive the conical pressure tube 13 and the plug-in tube 14 to move upward, so that the interior of the plug-in adjusting sleeve 8 is connected with the sampling docking port of the device to be sampled, and then the gas can be collected, that is, by rotating the rotating adjusting middle tube 4, and utilizing the threaded displacement principle of the rotating adjusting middle tube 4 and the inner telescopic tube 2, the collecting tube 1 is driven to telescope upward on the surface of the inner telescopic tube 2, so that it drives the conical piston tube 5 to pull and displace upward inside the inner telescopic tube 2, thereby achieving the purpose of collecting the gas to be sampled. The chemical gas of the sampling equipment is extracted, and the sampling device can adjust the capacity in real time according to the amount of sampled chemical gas. When the sampling capacity of the chemical gas needs to be increased, the rotating adjustment cap 16 on the top is turned to drive the center rod 3 to rotate. The threaded propulsion principle of the center rod 3 and the collecting tube 1 is utilized to drive the conical piston tube 5 and the sealing piston push plate 18 to move upward inside the collecting tube 1, so that the collecting tube 1 and the inner telescopic tube 2 can sample and store the chemical gas after being telescoped and stretched, which greatly increases the amount of sampled chemical gas that can be accommodated, making it more convenient in actual use. At the same time, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0022] In summary, the chemical gas safety detection sampling device, through the setting of the collecting tube 1, and the coordinated use of the inner telescopic tube 2, the center rod 3, the rotating adjustment middle tube 4, the conical piston tube 5, the limit lifting and supporting tube 7, the plug-in adjustment sleeve 8, the sealing opening and closing tube 9, the installation docking plate 10, the flow tube 11, the blocking tube 12, the pressure relief valve 15, the rotating adjustment cap 16, the inner tube 17 and the sealing piston push plate 18, thereby achieving the effect of driving the conical pressure tube 13 and the plug-in tube 14 to move upward through the rotation of the plug-in adjustment sleeve 8, so that the interior of the plug-in adjustment sleeve 8 is connected with the sampling docking port of the device to be sampled, and then by rotating the rotating adjustment middle tube 4, the threaded displacement principle of the rotating adjustment middle tube 4 and the inner telescopic tube 2 is utilized to drive the collecting tube 13 and the plug-in tube 14 to move upward. The cylinder 1 is telescopically displaced upward on the surface of the inner telescopic cylinder 2, so that it drives the conical piston cylinder 5 to be pulled and displaced upward inside the inner telescopic cylinder 2, thereby achieving the purpose of extracting the chemical gas from the equipment to be sampled, and enabling the sampling device to adjust the capacity in real time according to the amount of sampled chemical gas. Moreover, when it is necessary to increase the sampling capacity of the chemical gas, the center rod 3 is rotated, and the threaded propulsion principle of the center rod 3 and the collecting cylinder 1 is utilized to drive the conical piston cylinder 5 and the sealing piston push plate 18 to move upward inside the collecting cylinder 1, so that the collecting cylinder 1 and the inner telescopic cylinder 2 can sample and store the chemical gas after being telescoped and extended, which greatly increases the amount of sampled chemical gas that can be accommodated, making it more convenient in actual use.

[0023] 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.

[0024] Although embodiments of the present invention 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 invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chemical gas safety detection sampling device, comprising a collecting tube (1), characterized in that: An inner telescopic cylinder (2) is inserted into the bottom of the collecting cylinder (1), and the surface of the inner telescopic cylinder (2) is extruded and slidably connected to the inner wall of the collecting cylinder (1). A center rod (3) is inserted into the top of the collecting cylinder (1), and a thread groove is provided on the surface of the center rod (3). The inner wall of the top plate of the collecting cylinder (1) is threadedly connected to the surface of the center rod (3). The bottom of the collecting cylinder (1) is rotatably connected to a rotationally adjustable middle cylinder (4), and the surface of the inner telescopic cylinder (2) is provided with a thread groove. The inner wall of the rotationally adjustable middle cylinder (4) is threadedly sleeved with the surface of the inner telescopic cylinder (2). The bottom of the center rod (3) extends into the interior of the inner telescopic cylinder (2), and the end of the center rod (3) is inserted into the interior of the conical piston cylinder (5). The lower surface of the center rod (3) is rotatably connected to the inner wall of the conical piston cylinder (5), and the lower surface of the center rod (3) is fixedly sleeved with a limited lifting support cylinder (7). ), the bottom of the central rod (3) is fixedly connected with a plug-in adjustment sleeve (8), the bottom of the plug-in adjustment sleeve (8) is inserted with a sealing opening and closing cylinder (9), the surface of the sealing opening and closing cylinder (9) is threadedly connected to the inner wall of the plug-in adjustment sleeve (8), the bottom of the sealing opening and closing cylinder (9) is fixedly connected with a mounting docking plate (10), the top of the plug-in adjustment sleeve (8) is fixedly inserted with two circulation cylinders (11), the top of the circulation cylinder (11) is inserted into the interior of the inner telescopic cylinder (2), the interior of the inner telescopic cylinder (2) is connected with the interior of the plug-in adjustment sleeve (8) through the circulation cylinder (11), the bottom of the conical piston cylinder (5) is fixedly connected with two blocking cylinders (12) used in conjunction with the circulation cylinder (11), the surface of the central rod (3) is sleeved with an inner cylinder (17), and the annular outer surface of the inner cylinder (17) is fixedly sleeved with a sealing piston push plate (18).

2. A chemical gas safety detection sampling device according to claim 1, characterized in that: The top of the inner cavity of the plug-in adjustment sleeve (8) is fixedly connected to a conical pressure cylinder (13), the bottom of the conical pressure cylinder (13) is fixedly connected to a plug-in cylinder (14), and the middle of the mounting docking plate (10) is provided with an opening for use with the plug-in cylinder (14).

3. A chemical gas safety detection sampling device according to claim 1, characterized in that: The bottom end of the central rod (3) is fixedly connected to a clamping stabilizing block (6), and the surface of the clamping stabilizing block (6) is rotatably sleeved with the inner wall of the conical piston cylinder (5).

4. A chemical gas safety detection sampling device according to claim 1, characterized in that: A sealing sleeve (19) is fixedly connected to the top of the sealing piston push plate (18), and the inner wall of the sealing sleeve (19) is pressed and movably sleeved on the surface of the center rod (3).

5. A chemical gas safety detection sampling device according to claim 1, characterized in that: A rotary adjustment cap (16) is fixedly connected to the top of the central rod (3), and a pressure relief valve (15) is fixedly installed on the top of the collecting cylinder (1).

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