Sampling steel cylinder with liquid level indication function

By integrating a magnetic level gauge and tilt warning structure onto the sampling cylinder, the problems of not being able to visually view the liquid level and the cylinder being placed at an angle are solved, enabling liquid level indication and tilt alarm functions, thus ensuring sampling accuracy and safety.

CN223795067UActive Publication Date: 2026-01-13LIHUAYI WEIYUAN CHEM CO LTD
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Patent Information

Application Number
CN202422899468.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2026-01-13
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

The existing sampling cylinders do not allow for a direct view of the liquid level during replacement, and they cannot promptly alert staff to adjust them when tilted, affecting sampling accuracy.

Method used

Design a sampling cylinder with liquid level indication function. By combining a magnetic float level gauge and a tilt warning structure, liquid level indication and tilt alarm can be achieved to ensure the correct placement of the sampling cylinder.

Benefits of technology

It enables intuitive observation of the liquid level during the replacement process and provides timely alarm when the sampling cylinder is tilted, ensuring the accuracy and safety of the sampling process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sampling steel cylinder with a liquid level indication function. The sampling steel cylinder comprises a sampling steel cylinder, two three-way connecting pipes are mounted on the sampling steel cylinder, extension pipes are mounted on the two three-way connecting pipes, liquid level indicating structures are mounted on the two three-way connecting pipes, a fixing ring sleeves the sampling steel cylinder, a mounting box is mounted on the fixing ring, and an inclined warning structure is mounted on the mounting box; according to the utility model, the sampling steel cylinder and the magnetic turning plate liquid level meter are matched for use, so that part of liquid can enter the magnetic turning plate liquid level meter through the three-way connecting pipe when the sampling steel cylinder is connected with replacement liquid, when the liquid immerses into a floater in the magnetic turning plate liquid level meter, the floater can rise and fall under the buoyancy action of the liquid, and when the floater rises, the floater can be separated from the magnetic turning plate liquid level meter through the three-way connecting pipe. When the sampling steel cylinder is fully filled with the liquid, the turning plate in the magnetic turning plate liquid level meter is turned to a red state, and the liquid level in the sampling steel cylinder can be indicated according to the turning degree of the red turning plate, so that whether the sampling steel cylinder is fully filled with the liquid or not is observed and replacement operation is performed.
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Description

Technical Field

[0001] This utility model relates to the field of sampling cylinder technology, specifically a sampling cylinder with liquid level indication function. Background Technology

[0002] Sampling cylinders are containers used to collect and store gaseous, liquid, or solid samples, playing a vital role in scientific research, environmental monitoring, and industrial production. During gas sampling, the cylinder may contain residual gas, impurities, or contaminants from the previous sampling. These residues can contaminate the newly sampled gas, affecting the accuracy of the sampling results. Therefore, before conducting a new gas sampling, the sampling cylinder must be purged to remove any residues and ensure its cleanliness and freedom from contamination.

[0003] When replacing the gas or liquid in the sampling cylinder, open the cylinder's vent valve or outlet valve to empty the original gas, liquid, or residue inside the cylinder. After emptying, close the vent valve or outlet valve, open the inlet valve for the replacement gas or liquid, and fill the cylinder with replacement gas or liquid. Repeat this operation several times to initially remove the residue inside the cylinder.

[0004] In existing technologies, most sampling cylinders adopt a sealed design. When replacing the residual liquid inside the sampling cylinder, it is not possible to intuitively see the liquid level information of the sampling cylinder. Moreover, in order to ensure a uniform distribution of liquid pressure inside the sampling cylinder, it is usually necessary to place it vertically. However, there are no tilt warning measures on the sampling cylinder. If the sampling cylinder tilts or falls over during installation, it is not convenient to remind the staff to make adjustments in time. Therefore, there is a need for a sampling cylinder with a liquid level indication function to meet people's needs. Utility Model Content

[0005] The purpose of this invention is to provide a sampling cylinder with a liquid level indication function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sampling cylinder with a liquid level indication function, comprising a sampling cylinder; two three-way connectors are installed on the sampling cylinder, each of the two three-way connectors is equipped with an extension tube, a liquid level indication structure is installed on the two three-way connectors, a fixing ring is sleeved on the sampling cylinder, an installation box is installed on the fixing ring, a tilt warning structure is installed on the installation box, and a linkage structure is installed on the tilt warning structure.

[0007] Preferably, the liquid level indicating structure includes a valve one, which is installed on a three-way connector. A connecting flange is installed on the three-way connector, and a magnetic float level gauge is installed on the connecting flange. The magnetic float level gauge is connected to the three-way connector. A valve two is provided on an extension pipe, and an external threaded connector is installed at one end of the extension pipe. The external threaded connector is connected to the extension pipe.

[0008] Preferably, the magnetic level gauge is connected to a drain pipe, and a drain valve is installed on the drain pipe.

[0009] Preferably, the tilt warning structure includes a connecting shaft, which is rotatably mounted on the inner wall of the mounting box. A connecting rod is mounted on the connecting shaft, and a counterweight is mounted on one end of the connecting rod. The counterweight is movably mounted inside the mounting box. Two alarms are mounted on the inner wall of the mounting box, and each alarm has an alarm switch. The two alarm switches are located on opposite sides of the counterweight. A transparent observation plate is provided on the mounting box.

[0010] Preferably, the inner wall of the mounting box is provided with an arc-shaped groove, and the counterweight is movably installed in the arc-shaped groove.

[0011] Preferably, the linkage structure includes a sliding plate, which is movably sleeved on the external threaded pipe. A connecting rod is mounted on the sliding plate and slidably mounted on one side of the mounting box. An insert is mounted on the connecting rod, and a slot is provided on the connecting shaft, in which the insert is movably mounted.

[0012] Preferably, a fixing collar is fitted onto the extension tube, one end of which is fitted with a spring, and the other end of which is fitted onto a sliding plate. The spring is movably fitted onto the external threaded connector and the extension tube. A sliding hole is provided on the inner wall of the sliding plate, and the external threaded connector is movably installed in the sliding hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, by using a sampling cylinder in conjunction with a magnetic float level gauge, when the sampling cylinder is connected to the replacement liquid, some of the liquid can enter the magnetic float level gauge through the three-way connector. When the liquid is immersed in the float in the magnetic float level gauge, the float will rise and fall due to the buoyancy of the liquid. When the float rises, it will cause the flip plate in the magnetic float level gauge to flip to the red state. The degree of flipping of the red flip plate can be used to indicate the liquid level in the sampling cylinder, so as to observe whether the liquid in the sampling cylinder is completely filled and to carry out the replacement operation.

[0015] (2) When the connecting pipe is put on the external threaded pipe, it will squeeze the sliding plate and make it move. During the process, it can release the restriction on the connecting shaft and make the connecting shaft rotatable. When the placement of the sampling cylinder is tilted, it will cause the installation box to tilt, while the counterweight will remain vertical under its own weight. Finally, the counterweight will squeeze the alarm switch and make the alarm sound, reminding the staff to adjust the angle of the sampling cylinder as soon as possible to avoid affecting the sampling process of the sampling cylinder. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a sampling cylinder with liquid level indication function proposed in this utility model;

[0017] Figure 2 This is a side view of a sampling cylinder with a liquid level indication function proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the sliding plate structure of a sampling steel cylinder with liquid level indication function proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the linkage structure of a sampling steel cylinder with liquid level indication function proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the mounting box structure for a sampling steel cylinder with liquid level indication function proposed in this utility model;

[0021] Figure 6 This is a schematic diagram of the internal structure of the mounting box for a sampling steel cylinder with a liquid level indication function, as proposed in this utility model.

[0022] In the diagram: 100, sampling cylinder; 200, tee connector; 201, valve one; 202, connecting flange; 203, magnetic level gauge; 204, valve two; 205, external threaded connector; 206, drain pipe; 207, drain valve; 208, extension pipe; 300, retaining ring; 301, mounting box; 302, connecting shaft; 303, connecting rod; 304, counterweight; 305, alarm; 306, alarm switch; 307, transparent observation plate; 308, arc groove; 400, sliding plate; 401, connecting rod; 402, insert block; 403, slot; 404, retaining collar; 405, spring; 406, sliding hole. Detailed Implementation

[0023] 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.

[0024] Example 1: Please refer to Figure 1-6 This utility model provides a technical solution: a sampling cylinder with a liquid level indication function, including a sampling cylinder 100; two three-way connectors 200 are installed on the sampling cylinder 100, each of the two three-way connectors 200 is equipped with an extension tube 208, and a liquid level indication structure is installed on the two three-way connectors 200; a fixing ring 300 is sleeved on the sampling cylinder 100, and an installation box 301 is installed on the fixing ring 300; a tilt warning structure is installed on the installation box 301, and a linkage structure is installed on the tilt warning structure. By setting the liquid level indication structure, the liquid level in the sampling cylinder 100 can be indicated, and the tilt warning structure can promptly remind the staff to pay attention to the placement angle when the sampling cylinder 100 is placed at an angle. With the use of the linkage structure, the sampling cylinder 100 can be prevented from accidentally triggering an alarm during placement.

[0025] Furthermore, the liquid level indicating structure includes valve 1 201, which is installed on the three-way connector 200. A connecting flange 202 is installed on the three-way connector 200, and a magnetic float level gauge 203 is installed on the connecting flange 202. The magnetic float level gauge 203 is connected to the three-way connector 200. A valve 204 is installed on the extension pipe 208, and an external threaded connector 205 is installed at one end of the extension pipe 208. The external threaded connector 205 is connected to the extension pipe 208. The two three-way connectors 200 on the sampling cylinder 100 are connected to the sampling pipeline respectively. The valves 204 on the two extension pipes 208 and valve 1 201 on the three-way connector 200 are opened respectively, so that the replacement liquid enters the three-way connector 200 through the extension pipe 208. During the process, some liquid can enter the magnetic float level gauge 203 through the three-way connector 200 and the connecting flange 202. The liquid level in the sampling cylinder 100 is indicated according to the degree of flipping of the red float.

[0026] Furthermore, a drain pipe 206 is connected to the magnetic float level gauge 203, and a drain valve 207 is installed on the drain pipe 206. By opening the drain valve 207, the residual liquid in the magnetic float level gauge 203 can be discharged for the next use.

[0027] Example 2: As Figure 3-6To promptly alert staff when the sampling cylinder 100 is tilted, a tilt warning structure is installed on the mounting box 301. This structure includes a connecting shaft 302, which is rotatably mounted on the inner wall of the mounting box 301. A connecting rod 303 is mounted on the connecting shaft 302, and a counterweight 304 is mounted at one end of the connecting rod 303. The counterweight 304 is movably mounted inside the mounting box 301. Two alarms 305 are installed on the inner wall of the mounting box 301, each equipped with an alarm switch 306, located on either side of the counterweight 304. The mounting box 301 is equipped with a transparent observation plate 307. The inner wall of the mounting box 301 is provided with an arc-shaped groove 308. The counterweight 304 is movably installed in the arc-shaped groove 308. The other features are the same as in Embodiment 1. The connecting shaft 302 is in a rotatable state. When the placement position of the sampling cylinder 100 is tilted, the counterweight 304 will cause the connecting rod 303 to flip under the action of gravity. The flipped connecting rod 303 will cause the connecting shaft 302 to flip, so that the counterweight 304 can always maintain a vertical state. Finally, the counterweight 304 can press against the alarm switch 306, thereby triggering the alarm 305 to sound an alarm.

[0028] Example 3: As Figure 2-5 To prevent the sampling cylinder 100 from accidentally triggering the alarm 305 during placement, a linkage structure is arranged on the tilt warning structure. This linkage structure includes a sliding plate 400, which is movably sleeved on the external threaded connector 205. A connecting rod 401 is mounted on the sliding plate 400 and slidably mounted on one side of the mounting box 301. A plug 402 is mounted on the connecting rod 401. A slot 403 is provided on the connecting shaft 302, and the plug 402 is movably mounted within the slot 403. A fixing collar 404 is sleeved on the extension tube 208, and one end of a spring 405 is mounted on the fixing collar 404. The other end of the spring 405 is mounted on the sliding plate 400, and the spring 405 is movably sleeved on the external threaded connector 205 and the extension tube 208. The inner wall of the sliding plate 400 has a sliding hole 406. The external threaded connector 205 is movably installed in the sliding hole 406. Since the external threaded connector 205 is designed with external threads, the connecting pipe needs to be sleeved on the external threaded connector 205 during installation. During the sleeve process, the connecting pipe will squeeze the sliding plate 400, causing the connecting rod 401 to drive the insert 402 to disengage from the slot 403. At this time, the angle restriction on the connecting shaft 302 can be released, and the connecting shaft 302 can be rotatable. When the connecting pipe sleeved on the external threaded connector 205 is loosened, the compressed spring 405 will push the sliding plate 400 to rise and reset, causing the connecting rod 401 to drive the insert 402 to re-insert into the slot 403, and the angle restriction on the connecting shaft 302 is re-established. The remaining features are the same as in Embodiment 2.

[0029] The working principle is as follows: During use, connect the two T-connectors 200 on the sampling cylinder 100 to the sampling pipeline. Open valves 204 on the two extension pipes 208 and valve 201 on the T-connector 200, allowing the replacement liquid to enter the T-connector 200 through the extension pipes 208. During this process, some liquid can enter the magnetic level gauge 203 through the T-connector 200 and connecting flange 202. The magnetic level gauge 203 is a liquid level measuring tool in the prior art. When liquid is immersed in the float inside the magnetic level gauge 203, it will cause the flap inside the gauge to flip to the red position. The color-coded status indicates the liquid level in the sampling cylinder 100 based on the degree of flipping of the red flap. After use, the residual liquid in the magnetic flap level gauge 203 can be drained by opening the drain valve 207 for future use. Because the external threaded connector 205 is designed with external threads, the connecting pipe needs to be fitted onto it during installation. During this fitting process, the connecting pipe will press against the sliding plate 400, causing it to move downwards. The descending sliding plate 400 will compress the spring 405 through its interaction with the fixed collar 404, thus moving the connecting rod 401. The moving connecting rod 401 will then move within the mounting box 30. Sliding one side of the 1 leads to the insertion block 402 disengaging from the slot 403, thus releasing the angle restriction on the connecting shaft 302 and allowing it to rotate. When the sampling cylinder 100 is tilted, the counterweight 304 will cause the connecting rod 303 to flip under gravity. The flipped connecting rod 303 will then cause the connecting shaft 302 to flip, ensuring that the counterweight 304 remains vertical. Simultaneously, the counterweight 304 will move within the arc-shaped groove 308, ultimately pressing against the alarm switch 306, triggering the alarm 305 to sound an alarm and alert staff to act quickly. Adjust the angle of the sampling cylinder 100. When the sampling cylinder 100 is not in use, it can be placed vertically. Under the weight of the counterweight 304, the connecting rod 303 and the connecting shaft 302 will rotate and reset. Then, slowly loosen the connecting pipe fitted on the external threaded connector 205. At this time, the compressed spring 405 will push the sliding plate 400 to rise and reset. The reset sliding plate 400 will drive the connecting rod 401 to reset, so that the connecting rod 401 drives the insert 402 to re-insert into the slot 403, and re-limit the angle of the connecting shaft 302 to prevent the sampling cylinder 100 from accidentally triggering the alarm 305 during placement.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sampling cylinder with liquid level indication function, comprising a sampling cylinder (100); characterized in that: Two three-way pipes (200) are installed on the sampling steel cylinder (100), and extension pipes (208) are installed on the two three-way pipes (200); liquid level indicating structures are installed on the two three-way pipes (200); a fixing ring (300) is sleeved on the sampling steel cylinder (100); a mounting box (301) is installed on the fixing ring (300); an inclination warning structure is installed on the mounting box (301); and a linkage structure is installed on the inclination warning structure. The liquid level indicating structure comprises a valve one (201) arranged on the three-way pipe (200); a connecting flange (202) is installed on the three-way pipe (200); a magnetic float liquid level meter (203) is installed on the connecting flange (202); the magnetic float liquid level meter (203) is in communication with the three-way pipe (200); a valve two (204) is arranged on the extension pipe (208); an external thread pipe (205) is installed on one end of the extension pipe (208); and the external thread pipe (205) is in communication with the extension pipe (208). The inclination warning structure comprises a connecting shaft (302) rotatably installed on the inner wall of the mounting box (301); a connecting rod (303) is installed on the connecting shaft (302); a counterweight (304) is installed on one end of the connecting rod (303); the counterweight (304) is movably installed in the mounting box (301); two alarms (305) are installed on the inner wall of the mounting box (301); alarm switches (306) are arranged on the two alarms (305); the two alarm switches (306) are respectively located on the two sides of the counterweight (304); and a transparent observation plate (307) is arranged on the mounting box (301).

2. The sampling cylinder with liquid level indication function according to claim 1, characterized in that: The magnetic float liquid level meter (203) is connected with a blowdown pipe (206), and a blowdown valve (207) is arranged on the blowdown pipe (206).

3. The sampling cylinder with liquid level indication function according to claim 1, characterized in that: An arc-shaped groove (308) is formed in the inner wall of the mounting box (301), and the counterweight (304) is movably installed in the arc-shaped groove (308).

4. The sampling cylinder with liquid level indication function according to claim 1, characterized in that: The linkage structure comprises a sliding plate (400) movably sleeved on the external thread pipe (205); a connecting rod (401) is installed on the sliding plate (400); the connecting rod (401) is slidably installed on one side of the mounting box (301); an insertion block (402) is installed on the connecting rod (401); an insertion slot (403) is formed in the connecting shaft (302); and the insertion block (402) is movably installed in the insertion slot (403).

5. The sampling cylinder with liquid level indication function according to claim 1, characterized in that: A fixing sleeve ring (404) is sleeved on the extension pipe (208); one end of a spring (405) is installed on the fixing sleeve ring (404); the other end of the spring (405) is installed on the sliding plate (400); the spring (405) is movably sleeved on the external thread pipe (205) and the extension pipe (208); a sliding hole (406) is formed in the inner wall of the sliding plate (400); and the external thread pipe (205) is movably installed in the sliding hole (406).