Natural gas quality sampling container

Abstract

The utility model belongs to the technical field of gas quality sampling containers, and particularly relates to a natural gas quality sampling container which comprises a sampling bag body and an overturning mechanism arranged on the sampling bag body, the sampling bag body is provided with an air inlet pipe communicated with the sampling bag body, and the overturning mechanism is provided with a self-sealing mechanism used for extruding the air inlet pipe. Through the bottom frame and the upturning frame on the overturning mechanism, when the sampling bag body is inflated and expanded, an elastic connecting belt is pushed to drive the upturning frame to overturn upwards, and meanwhile, an elastic pulling belt on the self-sealing mechanism is driven to pull a pressing mechanism, so that the pressing mechanism drives a pressing and sealing plate to extrude an air inlet pipe to seal an air inlet passage; meanwhile, the pressing and sealing plate drives a tough plate on the clamping mechanism to move downwards, and drives clamping teeth to slide downwards one by one to be clamped on the inner top surface of the cover frame in a staggered manner, so that a tooth sealing plate on the pressing mechanism can be braked in real time, and therefore, after the sampling bag body expands to a certain degree during sampling, air intake is limited, and the phenomenon of air leakage caused by excessive expansion of the sampling bag body is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of gas quality sampling container, specifically relates to a natural gas quality sampling container. BACKGROUND

[0002] Natural gas is mainly composed of methane, which is a flammable and explosive gas. If too much oxygen or other flammable gases are mixed into natural gas, it may change its explosion limit range and increase the risk of explosion and fire. Through gas quality sampling and analysis, the oxygen content and other key indicators in natural gas can be strictly controlled to ensure that it is within a safe range. Secondly, some natural gas may contain hydrogen sulfide, carbon monoxide and other toxic and harmful gases. For example, hydrogen sulfide is highly toxic, and even a small amount of leakage may cause serious harm to the human body, and even endanger life. Gas quality sampling can accurately detect the content of these toxic and harmful substances in time, and take appropriate measures for treatment, such as desulfurization and decarburization, to ensure personnel safety.

[0003] Problems existing in the prior art:

[0004] When natural gas is sampled by using a sampling bag, the gas inlet on the sampling bag is correspondingly sampled with the sampling port on the natural gas pipeline. During the sampling process, the valve needs to be controlled to observe the expansion of the sampling bag. As a result, the sampling bag may be filled with too much air, causing the bag to expand too much and leak, thereby requiring resampling and reducing the sampling effect. Utility model content

[0005] The utility model aims at providing a natural gas quality sampling container, which can solve the above technical problems.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] The utility model provides a natural gas quality sampling container, which comprises a sampling bag body and a turnover mechanism arranged on the sampling bag body, the sampling bag body is provided with an intercommunicating gas inlet pipe, the turnover mechanism is provided with a self-sealing mechanism for extruding the gas inlet pipe;

[0008] The turnover mechanism comprises a bottom frame and an upper turning frame, the sampling bag is arranged between the bottom frames, the sampling bag body is provided with elastic connecting belts on both sides, respectively, two elastic connecting belts are arranged on both sides inside the bottom frames, a rotating connecting mechanism is arranged between the bottom frame and the upper turning frame, the upper turning frame is provided with a supporting belt away from the rotating connecting mechanism and corresponding to the sampling bag body;

[0009] The self-sealing mechanism comprises a cover frame, the air inlet pipe is movably sleeved in the cover frame, a pressing mechanism for pressing the air inlet pipe is arranged in the cover frame, the pressing mechanism and the upper surface of the cover frame are respectively provided with elastic movable connection mechanisms, two pipe supporting plates for supporting the air inlet pipe are arranged in the cover frame, and a clamping mechanism for limiting the movement of the pressing mechanism is arranged on the cover frame.

[0010] When the natural gas quality sampling container is used, the sampling bag body is inflated through the air inlet pipe to expand, and simultaneously pushes the elastic connecting belt and the upturned frame to be turned over by relying on the horizontal shaft, so that the distance between the upturned frame and the bottom frame is expanded, and the upturned frame and the bottom frame drive the elastic pulling belt to pull the linkage plate and the cover frame away from each other, so as to drive the push-pull plate to slide in the cover frame, and simultaneously drive the pressing plate to move close to the inner bottom surface of the cover frame, so as to cooperate with the pipe supporting plate to press the air inlet pipe in a staggered manner, so that the channel in the air inlet pipe is pressed and limited to be unobstructed, and simultaneously the pressing plate moves downward to drive the clamping nails on the toughness plate to move downward, so that the clamping nails are clamped in the inner top surface of the cover frame in a staggered manner with the inclined surface in the movable hole, so that the pressing plate maintains the pressing state of the air inlet pipe. Thus, after the sampling bag body is inflated for sampling by relying on the air inlet pipe, the air inlet pipe is automatically sealed, air leakage caused by excessive air inlet of the sampling bag body is avoided, and the sampling effect of natural gas is affected.

[0011] As a preferred, the rotating connection mechanism comprises a horizontal shaft arranged on one side of the bottom frame, two movable plates are movably sleeved on the horizontal shaft, and the two movable plates are arranged on opposite sides of the upturned frame.

[0012] As a preferred, the pressing mechanism comprises a pressing plate, the pressing plate is arranged in the cover frame and on the upper side between the two pipe supporting plates, the bottom surface of the pressing plate is sleeved with the air inlet pipe through a semicircular groove, two push-pull plates are slidably sleeved on the bottom plate of the cover frame, and the bottom surface of the cover frame is provided with a linkage plate connected with the two push-pull plates.

[0013] As a preferred, the elastic movable connection mechanism comprises two vertical plates, the two vertical plates are arranged on the upper surface of the cover frame or the bottom surface of the linkage plate, a fixed shaft is arranged between the two vertical plates, a movable sleeve is movably sleeved on the fixed shaft, an elastic pulling belt is arranged on the movable sleeve, and the elastic pulling belt is arranged on the side of the bottom frame or the upturned frame away from the horizontal shaft.

[0014] As a preferred, the clamping mechanism comprises a toughness plate arranged on the upper surface of the pressing plate, the toughness plate is sleeved in a movable hole formed on the top plate of the cover frame, the side surface of the toughness plate is provided with a plurality of clamping nails, the plurality of clamping nails are matched with the inclined surface of the movable hole, and the plurality of clamping nails are matched with the corresponding top surface of the movable hole in the cover frame.

[0015] The beneficial effects are:

[0016] The utility model discloses a bottom frame and the upper frame of turnover mechanism can make the sampling bag body inflation when, drive the upper frame to overturn to the elastic connecting band, drive the elastic pull belt on the self -sealing mechanism to pull down the pressing mechanism simultaneously, thereby making the pressing mechanism drive the tooth seal plate to extrude the air inlet pipe closed air inlet passage, and the tooth seal plate drives the tenacity board on the card nail mechanism to move down and drive the card tooth to slide and dislocate and be clamped in the cover frame top surface one by one, so this can brake the tooth seal plate on the pressing mechanism in real time, thereby making the sampling bag body sample inflation to a certain degree, limit the air intake, avoid the sampling bag body overinflation and produce the air leakage phenomenon. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the front view structure schematic diagram of the utility model;

[0018] Figure 2 It is another side view structure schematic diagram of the utility model;

[0019] Figure 3 It is the self -sealing mechanism structure schematic diagram of the utility model;

[0020] Figure 4 It is another side structure schematic diagram of the self -sealing mechanism of the utility model.

[0021] In the drawings, the component list represented by each sign is as follows:

[0022] 1, sampling bag body;2, elastic connecting band;3, bottom frame;4, cross axle;5, upper frame;6, inflation support belt;7, self -sealing mechanism;701, cover frame;702, vertical board;703, fixed shaft;704, movable sleeve;705, elastic pull belt;706, tenacity board;707, card tooth;708, tooth seal plate;709, push -pull plate;710, support plate;711, linkage plate;8, air inlet pipe;9, movable plate. DETAILED DESCRIPTION

[0023] In order to make the purpose and the advantage of the utility model more clearly, the following specific description of the utility model is combined with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection scope of the utility model.

[0024] As Figures 1-4 Shown, a kind of natural gas quality sampling container, including sampling bag body 1 and setting on sampling bag body 1 turnover mechanism, sampling bag body 1 is provided with the air inlet pipe 8 of intercommunication, turnover mechanism is provided with the self -sealing mechanism 7 for extruding air inlet pipe 8;

[0025] The turnover mechanism comprises a bottom frame 3 and an upper turnover frame 5, the sampling bags are arranged between the bottom frame 3, the sampling bag body 1 is provided with elastic connecting belts 2 on both sides respectively, the two elastic connecting belts 2 are long belts with elastic extension and contraction, the two elastic connecting belts 2 are arranged on both sides inside the bottom frame 3, a rotating connection mechanism is arranged between the bottom frame 3 and the upper turnover frame 5, the upper turnover frame 5 is provided with a supporting belt 6 away from the rotating connection mechanism and corresponding to the sampling bag body 1, the supporting belt 6 is a long belt with elastic contraction, and the elastic extension and contraction amount of the supporting belt 6 is 1.2 times the width of the sampling bag body 1;

[0026] The self-sealing mechanism 7 comprises a cover frame 701, the air inlet pipe 8 is movably sleeved in the cover frame 701, the cover frame 701 is provided with a lower pressing mechanism for pressing the air inlet pipe 8, the lower pressing mechanism and the upper surface of the cover frame 701 are respectively provided with elastic movable connection mechanisms, the cover frame 701 is provided with two pipe supporting plates 710 for overlapping the air inlet pipe 8, and the cover frame 701 is provided with a clamping mechanism for limiting the movement of the lower pressing mechanism.

[0027] As an optional embodiment, the rotating connection mechanism comprises a horizontal shaft 4 arranged on one side inside the bottom frame 3, the horizontal shaft 4 is movably sleeved with two movable plates 9, and the two movable plates 9 are arranged on opposite sides inside one side of the upper turnover frame 5, so that the upper turnover frame 5 and the bottom frame 3 are driven to rotate away from each other on one side through the rotating connection mechanism, so as to drive the self-sealing mechanism 7 to automatically seal and adjust the air inlet pipe 8.

[0028] Referring to the accompanying drawings Figure 3 and the accompanying drawings Figure 4 The lower pressing mechanism comprises a pressing plate 708, the pressing plate 708 is located in the cover frame 701 and on the upper side between the two pipe supporting plates 710, the bottom surface of the pressing plate 708 is sleeved with the air inlet pipe 8 through a semicircular groove, two push-pull plates 709 are slidably sleeved on the bottom plate of the cover frame 701, the bottom surface of the cover frame 701 is provided with a linkage plate 711 connected with the two push-pull plates 709, and the two push-pull plates 709 are arranged in a symmetrical L shape, so that the sliding adjustment of the push-pull plates 709 and the cover frame 701 can be used to limit the movement track of the pressing plate 708, so as to press and close the passage of the air inlet pipe 8.

[0029] Further, the elastic movable connecting mechanism comprises two vertical plates 702 arranged on the upper surface of the cover frame 701 or the bottom surface of the linkage plate 711 respectively, a fixed shaft 703 arranged between the two vertical plates 702, a movable sleeve 704 arranged on the fixed shaft 703, and elastic pulling belts 705 arranged on the movable sleeve 704. The total elastic extension amount of the two elastic pulling belts 705 is set as three fourths of the inflation height of the sampling bag body 1. The elastic pulling belts 705 are arranged on the side of the bottom frame 3 or the upper turning frame 5 away from the horizontal shaft 4. In this way, the elastic pulling belts 705 can drive the upper turning frame 5 and the bottom frame 3 to turn, and generate a pulling force away from each other on the pressing plate 708 and the cover frame 701, thereby generating an automatic closing effect on the air inlet pipe 8.

[0030] Further, the clamping mechanism comprises a tough plate 706 arranged on the upper surface of the pressing plate 708, the tough plate 706 being sleeved in the movable hole formed on the top plate of the cover frame 701. The side surface of the tough plate 706 is provided with a plurality of clamping teeth 707, the plurality of clamping teeth 707 being matched with the inclined surface of the movable hole and the corresponding top surface of the movable hole in the cover frame 701. The tough plate 706 is made of a material with toughness. In this way, the tough plate 706 can be tilted and pushed by the clamping teeth 707 and the inclined surface of the movable hole, so that the clamping teeth 707 can slide through the movable hole and be clamped on the top surface of the cover frame 701, thereby forming a real-time braking effect on the tough plate 706 and the pressing plate 708.

[0031] With the above structure, when the sampling bag body 1 is inflated through the air inlet pipe 8, the elastic connecting belts 2 and the upper turning frame 5 are pushed to turn around the horizontal shaft 4, so that the distance between the upper turning frame 5 and the bottom frame 3 is expanded. At the same time, the upper turning frame 5 and the bottom frame 3 drive the elastic pulling belts 705 to pull the linkage plate 711 and the cover frame 701 away from each other, thereby driving the pressing plate 708 to move close to the bottom surface of the cover frame 701 and to press the air inlet pipe 8 together with the supporting plate 710, so that the channel in the air inlet pipe 8 is squeezed and limited to be unobstructed. At the same time, the pressing plate 708 moves downward to drive the clamping teeth 707 on the tough plate 706 to move downward, so that the clamping teeth 707 are clamped on the top surface of the cover frame 701 in a dislocation manner with the inclined surface of the movable hole, thereby keeping the pressing plate 708 in a state of pressing the air inlet pipe 8. In this way, after the sampling bag body 1 is inflated by taking in gas through the air inlet pipe 8, the air inlet pipe 8 is automatically closed, so that the sampling bag body 1 is prevented from leaking due to excessive gas, thereby avoiding affecting the sampling effect of natural gas.

[0032] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application. Structures, devices and operation methods not specifically described and explained in the present application are implemented according to conventional means in the art, unless otherwise specified and limited.

Claims

1. A natural gas quality sampling vessel, characterized by: The utility model provides a sampling bag, which comprises a sampling bag body (1) and a turnover mechanism arranged on the sampling bag body (1), the sampling bag body (1) is provided with an air inlet pipe (8) in communication, and the turnover mechanism is provided with a self-sealing mechanism (7) for extruding the air inlet pipe (8). The turnover mechanism comprises a bottom frame (3) and an upper turnover frame (5), the sampling bag is arranged between the bottom frame (3), both sides of the sampling bag body (1) are provided with elastic connecting belts (2), respectively, two elastic connecting belts (2) are arranged on both sides in the bottom frame (3), a rotating connection mechanism is arranged between the bottom frame (3) and the upper turnover frame (5), the upper turnover frame (5) is provided with a supporting belt (6) away from the rotating connection mechanism and corresponding to the sampling bag body (1). The self-sealing mechanism (7) comprises a cover frame (701), the air inlet pipe (8) is movably sleeved (704) in the cover frame (701), a pressing mechanism for extruding the air inlet pipe (8) is arranged in the cover frame (701), the pressing mechanism and the upper surface of the cover frame (701) are respectively provided with elastic movable connection mechanisms, two pipe supporting plates (710) for overlapping the air inlet pipe (8) are arranged in the cover frame (701), and a clamping mechanism for limiting the movement of the pressing mechanism is arranged on the cover frame (701).

2. A natural gas quality sampling vessel according to claim 1, wherein: The rotating connection mechanism comprises a horizontal shaft (4) arranged on one side in the bottom frame (3), two movable plates (9) are movably sleeved (704) on the horizontal shaft (4), and the two movable plates (9) are arranged on opposite sides of one side in the upper turnover frame (5).

3. A natural gas quality sampling vessel according to claim 2, wherein: The pressing mechanism comprises a sealing plate (708), the sealing plate (708) is located in the cover frame (701) and on the upper side between the two pipe supporting plates (710), the bottom surface of the sealing plate (708) is sleeved with the air inlet pipe (8) through a semicircular groove, two push-pull plates (709) are slidably sleeved on the bottom plate of the cover frame (701), and the bottom surface of the cover frame (701) is provided with a linkage plate (711) connected with the two push-pull plates (709).

4. A natural gas quality sampling vessel according to claim 3, wherein: The elastic movable connection mechanism comprises two vertical plates (702), the two vertical plates (702) are arranged on the upper surface of the cover frame (701) or the bottom surface of the linkage plate (711), a fixed shaft (703) is arranged between the two vertical plates (702), a movable sleeve (704) is movably sleeved (704) on the fixed shaft (703), an elastic pulling belt (705) is arranged on the movable sleeve (704), and the elastic pulling belt (705) is arranged on one side of the bottom frame (3) or the upper turnover frame (5) away from the horizontal shaft (4).

5. A natural gas quality sampling vessel according to claim 4, wherein: The clamping mechanism comprises a flexible plate (706) arranged on the upper surface of the sealing plate (708), the flexible plate (706) is sleeved in the movable hole formed in the top plate of the cover frame (701), the side surface of the flexible plate (706) is provided with a plurality of clamping teeth (707), the plurality of clamping teeth (707) are matched with the inclined surface of the movable hole, and the plurality of clamping teeth (707) are matched with the corresponding top surface clamping of the movable hole in the cover frame (701).

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