CN212134249U - Sampling device for canned gas production - Google Patents

Abstract

The utility model discloses a sampling device for canned gas production, which comprises a sealing tank, an inner threaded pipe and a sampling cylinder. It is wrapped on the outer wall of the top of the detection port, and the top of the inner threaded pipe is connected to a limit tube. The sampling cylinder is arranged inside the limit tube, and the ball groove is provided with balls. The limit tube is provided with a limit groove. A replaceable needle is connected to the bottom of the sampling cylinder, a piston push rod is connected to the upper surface of the piston, and a handle is connected to the top of the piston push rod. The sampling device for canned gas production completes the gas sampling work by inserting a replaceable needle through the sealing silicone into the sealing tank, and pulling the piston push rod upward to make the piston rise to extract the gas inside the sealing tank. The sampling device has a simple structure and is convenient for production and production. , easy to disassemble, compact and easy to carry, which is conducive to vigorous promotion.

Description

A sampling device for canned gas production

technical field

The utility model relates to the technical field of canned gas sampling devices, in particular to a sampling device for canned gas production.

Background technique

When gas is stored, the gas is usually injected into the sealed tank for preservation, such as: oxygen tank for storing oxygen, liquefied gas tank for storing liquefied gas, etc. Such sealed tanks need to regularly sample and test the gas when storing gas to prevent gas Changes occur to avoid gas deterioration, and a gas sampling device is required at this time.

The existing gas sampling device is too large in size, inconvenient to disassemble and carry, and needs to be inserted into a sealed tank for sampling during use. During the insertion process, it is easy to generate gaps and cause gas leakage, which is easy to cause the human body to inhale harmful gases. In view of the above situation , we have launched a sampling device for canned gas production.

Utility model content

The purpose of the present utility model is to provide a sampling device for canned gas production, so as to solve the problem that the general gas sampling device proposed in the above-mentioned background technology is too large in size, inconvenient for disassembly and assembly, inconvenient to carry, and needs to be inserted into a sealed tank for sampling during use. , in the process of insertion, it is easy to generate gaps and cause gas leakage, which is easy to cause the problem of harmful gas inhalation by the human body.

In order to achieve the above purpose, the utility model provides the following technical solutions: a sampling device for canned gas production, comprising a sealing tank, an inner threaded pipe and a sampling cylinder, a detection port is opened on the top of the sealing tank, and a detection port is provided inside the detection port. Sealing silica gel, the inner threaded tube is wrapped around the outer wall of the top of the detection port, and the top of the inner threaded tube is connected to a limit tube, the sampling tube is arranged inside the limit tube, and the outer wall of the sampling tube is provided with a ball groove, and the inside of the ball groove A ball is provided, a limit groove is set inside the limit tube, a replaceable needle is connected to the bottom of the sampling cylinder, a piston is arranged inside the sampling cylinder, a piston push rod is connected to the upper surface of the piston, and the top of the piston push rod is connected The connection has a grip.

Preferably, the structure size of the inner port of the detection port is consistent with the structure size of the outer port of the sealing silica gel, and the sealing tank forms the sealing structure by the sealing silica gel.

Preferably, the vertical centerline of the internally threaded pipe and the vertical centerline of the detection port coincide with each other, and the internal threaded pipe and the limiting pipe are in a welded integrated structure.

Preferably, the outer wall of the sampling cylinder is in contact with the inner wall of the limiting tube, and the sampling cylinder forms a sliding structure through the balls, the limiting groove and the sampling cylinder.

Preferably, a screw connection is provided between the bottom of the sampling cylinder and the replaceable needle, and the structure size of the outer port of the piston is consistent with the structure size of the inner port of the sampling cylinder.

Preferably, the piston forms a telescopic structure between the piston push rod and the sampling cylinder, and the piston push rod passes through the handle "T"-shaped structure.

Compared with the prior art, the beneficial effect of the present utility model is that the sampling device for canned gas production inserts a replaceable needle into the sealed canister through the sealing silica gel, and pulls the piston push rod upwards to make the piston rise, so that the gas in the sealed canister can be detected. The gas sampling work is completed by extraction, the sampling device has a simple structure, is convenient for manufacture and production, is convenient for disassembly and assembly, and is compact and portable, which is conducive to vigorous promotion.

The sampling device for canned gas production can be used in conjunction with a suitable sealed can. The detection port at the top of the sealed can is filled with sealing silica gel. When the replaceable needle is inserted into the sealed can, the sealing silica gel will tightly wrap the replaceable needle. Preventing the generation of gaps is conducive to improving the sealing performance during gas sampling and preventing gas leakage, thereby preventing the human body from inhaling harmful gases.

The sampling cylinder of the sampling device for canned gas production slides vertically up and down along the interior of the limiting groove through the ball, which is beneficial to avoid the inclination of the replaceable needle when it is inserted into the sealed tank, and the replaceable needle is threadedly connected to the bottom of the sampling cylinder. It is convenient to disassemble and replace the replaceable needles of different sizes in the later stage, and the replaceable needles of different sizes can extract the gas at different levels inside the sealed tank, thereby improving the sample data during gas sampling and testing, which is conducive to improving the accuracy of gas detection. Spend.

Description of drawings

1 is a schematic view of the internal structure of the present utility model;

Figure 2 is a schematic diagram of the internal structure of the internal threaded pipe of the present invention;

FIG. 3 is a schematic view of the enlarged structure of the position A in FIG. 2 of the present utility model.

In the figure: 1. Sealing tank; 2. Detection port; 3. Sealing silica gel; 4. Internal thread pipe; 5. Limiting tube; 6. Sampling cylinder; 7. Ball groove; 8. Ball; 9. Limiting groove; 10. Replaceable needle; 11. Piston; 12. Piston push rod; 13. Grip.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIGS. 1-3 , the present utility model provides a technical solution: a sampling device for canned gas production, comprising a sealing tank 1, an inner threaded pipe 4 and a sampling cylinder 6, and a detection port 2 is opened on the top of the sealing tank 1, In addition, the detection port 2 is provided with a sealing silica gel 3, and the inner port structure size of the detection port 2 is consistent with the outer port structure size of the sealing silica gel 3, and the sealing tank 1 constitutes a sealing structure by the sealing silica gel 3, and the setting of the detection port 2 can be convenient. The staff samples and collects the gas inside the sealing tank 1, and the sealing silica gel 3 is fully filled in the detection port 2 to prevent the generation of gaps and avoid gas leakage;

The inner threaded pipe 4 is wrapped on the outer wall of the top of the detection port 2, and the top of the inner threaded pipe 4 is connected to the limit pipe 5. The vertical center line of the inner threaded pipe 4 and the vertical center line of the detection port 2 coincide with each other, and the inner threaded pipe 4 It has a welded integrated structure with the limit pipe 5, and the inner threaded pipe 4 and the detection port 2 are connected in a threaded connection. It is beneficial to insert the sampling device into the sealed tank 1 in a vertical state for sampling operation, and prevent the sampling device from being skewed;

The sampling tube 6 is arranged inside the limit tube 5, and the outer wall of the sampling tube 6 is provided with a ball groove 7, the ball groove 7 is provided with a ball 8, the limit tube 5 is provided with a limit groove 9, and the bottom of the sampling tube 6 is connected with a replaceable Needle 10, and the interior of the sampling cylinder 6 is provided with a piston 11, the bottom of the sampling cylinder 6 and the replaceable needle 10 are provided with a threaded connection, and the structure size of the outer port of the piston 11 is consistent with the structure size of the inner port of the sampling cylinder 6. The sampling cylinder 6 is pressed to slide down the inside of the limiting groove 9 through the ball 8 so that the sampling cylinder 6 is vertically lowered. The arrangement of the ball 8 and the limiting groove 9 is beneficial to prevent the sampling cylinder 6 from shaking when sliding, thereby avoiding the replacement of the needle. 10 When the sealing silica gel 3 is penetrated, the gap between the replaceable needle 10 and the sealing silica gel 3 is enlarged due to vibration. The ball 8 is arranged in the ball groove 7 to prevent the ball 8 from falling, and between the replaceable needle 10 and the bottom of the sampling cylinder 6 The threaded connection is convenient for later disassembly and replacement of the replaceable needles 10 of different sizes and specifications, and the replaceable needles 10 of different sizes and specifications can extract the gas at different levels inside the sealed tank 1, thereby improving the sample data during gas sampling and detection, which is beneficial to Improve the accuracy of gas detection;

The upper surface of the piston 11 is connected with a piston push rod 12, and the top of the piston push rod 12 is connected with a handle 13. The piston 11 forms a telescopic structure between the piston push rod 12 and the sampling cylinder 6, and the piston push rod 12 passes through the handle 13 " T"-shaped structure, after the replaceable needle 10 is vertically inserted into the sealing tank 1, the staff holds the outer wall of the sampling cylinder 6 with one hand, and the grip 13 with the other hand pulls up to drive the piston 11 to rise along the inner wall of the sampling cylinder 6, thereby preventing the sealing The gas inside the tank 1 is sampled and collected, and the "T"-shaped structure of the piston push rod 12 through the handle 13 is convenient for people to hold and pull or press down.

Working principle: When using the sampling device for canned gas production, firstly turn the inner threaded pipe 4 clockwise to make a threaded connection with the detection port 2. At this time, the vertical centerline of the inner threaded pipe 4 is connected to the detection port. The vertical centerlines of 2 overlap each other, which is beneficial to insert the sampling device into the sealed tank 1 in a vertical state for sampling operation, and prevent the sampling device from being skewed. The needle 10 is threadedly connected to the bottom of the sampling cylinder 6, and then the sampling cylinder 6 is inserted into it from the top of the limit tube 5. At this time, the ball 8 is limited in the limit groove 9, and then the handle 13 is pressed down by hand to drive the sampling. The cylinder 6 slides vertically along the interior of the limit groove 9 through the ball 8, which is beneficial to prevent the sampling cylinder 6 from shaking when sliding. At this time, the replaceable needle 10 penetrates the sealing silicone 3 and is inserted into the sealing tank 1, and the sealing silicone 3 will be tightly wrapped. The needle 10 can be replaced to prevent the generation of gaps, which is beneficial to improve the airtightness during gas sampling and prevent gas leakage, thereby preventing the human body from inhaling harmful gases. Then the staff holds the outer wall of the sampling cylinder 6 with one hand, and holds the handle 13 with the other hand. Pull up The piston 11 is driven to rise along the inner wall of the sampling cylinder 6 to extract and collect the gas inside the sealed tank 1 , and finally the handle 13 is pulled upward to pull the replaceable needle 10 out of the sealed tank 1 to complete the sampling operation.

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

Claims (6)

1. The utility model provides a sampling device is used in canned gas production, includes seal pot (1), internal thread pipe (4) and sampler barrel (6), its characterized in that: detection mouth (2) have been seted up at seal pot (1) top, and detect mouth (2) inside and be provided with sealing silica gel (3), internal thread pipe (4) wrap up in detection mouth (2) top outer wall, and internal thread pipe (4) top is connected with spacing pipe (5), sampler barrel (6) set up inside spacing pipe (5), and sampler barrel (6) outer wall has seted up ball groove (7), ball groove (7) inside is provided with ball (8), spacing groove (9) have been seted up to spacing pipe (5) inside, sampler barrel (6) bottom is connected with and can replaces syringe needle (10), and sampler barrel (6) inside is provided with piston (11), piston (11) upper surface is connected with piston push rod (12), and piston push rod (12) top is connected with handle (13).

2. The sampling device for canned gas production according to claim 1, characterized in that: the inner opening structure size of the detection opening (2) is identical with the outer opening structure size of the sealing silica gel (3), and the sealing tank (1) forms a sealing structure through the sealing silica gel (3).

3. The sampling device for canned gas production according to claim 1, characterized in that: the vertical central line of internal thread pipe (4) and the vertical central line of detecting mouth (2) coincide each other, and are welding integral structure between internal thread pipe (4) and spacing pipe (5).

4. The sampling device for canned gas production according to claim 1, characterized in that: the outer wall of sampling tube (6) and the inner wall of spacing pipe (5) are laminated mutually, and sampling tube (6) pass through ball (8), spacing groove (9) and constitute sliding construction between sampling tube (6).

5. The sampling device for canned gas production according to claim 1, characterized in that: the bottom of the sampling tube (6) is in threaded connection with the replaceable needle head (10), and the structural size of the outer opening of the piston (11) is matched with that of the inner opening of the sampling tube (6).

6. The sampling device for canned gas production according to claim 1, characterized in that: the piston (11) forms a telescopic structure with the sampling cylinder (6) through a piston push rod (12), and the piston push rod (12) passes through a T-shaped structure of the handle (13).

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