Gas measuring devices

Abstract

The present application provides a gas measurement device that solves the problem of low measurement accuracy. The gas measurement device includes: a gas collection mechanism including two gas collection chambers; a fixed frame rotatably connected to the gas collection mechanism; a limiting mechanism located below the two gas collection chambers, for limiting the rotation angle of the gas collection mechanism by colliding with the edges of the gas collection chambers; a housing that accommodates the gas collection mechanism, the fixed frame, the limiting mechanism, and a liquid medium; and an air inlet located below the gas collection mechanism, wherein bubbles emerge from the air inlet and rise into one of the gas collection chambers. As bubbles accumulate, the liquid medium in the gas collection chamber is gradually discharged. The gas collection mechanism rotates under the buoyancy of the accumulated bubbles, causing the bubbles emerging from the air inlet to rise into the other gas collection chamber.

Description

Technical Field

[0001] The present application relates to the field of gas measurement technology, and in particular to a gas measurement device. Background Art

[0002] The measurement structure of existing gas measurement equipment is mostly a single-cavity structure. The single cavity is immersed in the liquid medium in an upside-down manner at an initial position. Gas enters the single cavity in the form of bubbles from the opening below the single cavity, thereby realizing the collection of gas by the single cavity. When the collected gas reaches a set capacity, the buoyancy generated by the gas will be greater than the force required to lift the single cavity, so that when the single cavity is lifted to a level close to the liquid surface of the liquid medium, the gas overflows from the single cavity into the air, thereby reducing the buoyancy of the single cavity, and causing the single cavity to fall back to its initial position under the action of gravity. Since the single cavity must go through the process of falling back into the liquid medium, a certain amount of falling time is required, but the gas to be measured is continuously input. Therefore, during the process of the single cavity falling back, the single cavity cannot collect the gas, which will cause the gas to be measured to leak, resulting in low accuracy of the gas measurement results. Summary of the Invention

[0003] In view of this, an embodiment of the present application provides a gas measurement device to solve the problem of low accuracy of gas measurement results.

[0004] A gas measuring device provided in one embodiment of the present application includes: a gas collecting mechanism, including two gas collecting chambers; a fixing frame, rotatably connected to the gas collecting mechanism; a limiting mechanism, located below the two gas collecting chambers, for limiting the rotation angle of the gas collecting mechanism by colliding with the edges of the gas collecting chambers; a shell, accommodating the gas collecting mechanism, the fixing frame, the limiting mechanism and the liquid medium; and an air inlet, located below the gas collecting mechanism, wherein bubbles emerge from the air inlet and rise into one of the gas collecting chambers, and as the bubbles accumulate, the liquid medium in the gas collecting chamber is gradually discharged, and the gas collecting mechanism rotates under the buoyancy of the accumulated bubbles, so that the bubbles emerging from the air inlet rise into the other gas collecting chamber.

[0005] In one embodiment of the present application, the two gas collecting chambers are symmetrically arranged.

[0006] In one embodiment of the present application, the limiting mechanism includes: a fixing unit, fixedly connected to the fixing frame; and a stroke adjustment unit, located above the fixing unit and movably connected to the fixing unit up and down, thereby achieving height adjustment of the limiting mechanism, thereby adjusting the collision position with the two gas collecting chambers.

[0007] In one embodiment of the present application, the gas collecting mechanism also includes: a partition, used to separate the two gas collecting chambers, thereby achieving symmetrical separation of the two gas collecting chambers; and a bubble guiding unit, wherein the bubble guiding unit includes a sheet or block structure, fixedly connected to the partition of the two gas collecting chambers, and is used to prevent the deviation of the rising path of the bubbles.

[0008] In one embodiment of the present application, the cross-section of the bubble guiding unit parallel to the side wall of the gas collecting mechanism has an inverted triangle shape.

[0009] In one embodiment of the present application, the air inlet includes a circular through hole, one end of the air inlet is connected to one end of the air inlet pipe, the gas enters from the other end of the air inlet pipe, and emerges from the other end of the air inlet; wherein the diameter of the circular through hole is smaller than the inner diameter of the air inlet pipe.

[0010] In one embodiment of the present application, the gas collecting mechanism also includes: a partition, used to separate the two gas collecting chambers to achieve symmetrical separation of the two gas collecting chambers; a rod-shaped structure, one end of the rod-shaped structure is connected to the partition and swings with the gas collecting mechanism; and a sending unit, fixedly installed at the other end of the rod-shaped structure, used to send a swing signal of the gas collecting mechanism.

[0011] In one embodiment of the present application, the rod-shaped structure has a streamlined shape.

[0012] In one embodiment of the present application, the measuring device further includes: a receiving unit, which is communicatively connected to the sending unit and receives the swing signal sent by the sending unit.

[0013] In one embodiment of the present application, the receiving unit is located outside the shell; wherein, the inner bottom surface of the shell includes a recessed portion, which provides an accommodation space for one end of the rod-shaped structure on which the sending unit is installed, so that when the rod-shaped structure swings to the bottom of the shell, it passes through the recessed portion.

[0014] In one embodiment of the present application, the shell is made of a transparent material.

[0015] In one embodiment of the present application, the shell includes: an arc-shaped recess located on the outside of the shell; wherein the shape of the cross section of the arc-shaped recess perpendicular to the shell includes an arc line.

[0016] In one embodiment of the present application, the device further includes: a pipeline guide unit, fixedly connected to the fixed frame, the pipeline guide unit including a tubular structure and / or a groove structure, for surrounding and / or semi-surrounding the intake pipeline, so that the intake pipeline is laid along the pipeline guide unit.

[0017] In one embodiment of the present application, the device further includes: a gas outlet located at the upper portion of the shell, for releasing gas emerging from the liquid medium.

[0018] The gas measuring device provided in the embodiment of the present application provides two gas collecting chambers, so that the bubbles emerging from the air inlet enter one gas collecting chamber. When the accumulated bubble volume reaches a certain level, the gas collecting mechanism rotates to release the gas in the gas collecting chamber, and the bubbles emerging from the air inlet rotate and enter the other gas collecting chamber, thereby avoiding gas leakage and improving the accuracy of the gas measurement results. In addition, by providing a limiting mechanism, the rotation angle of the gas collecting mechanism can be limited, thereby accurately limiting the gas collecting mechanism to rotate to the center of gravity position of the preset angle, thereby accurately limiting the buoyancy of the gas required for the rotation of the gas collecting mechanism, thereby accurately limiting the volume of gas in the gas collecting chamber corresponding to one rotation, thereby further improving the accuracy of gas measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG2 is a schematic structural diagram of a gas measuring device provided in one embodiment of the present application.

[0020] Figure 2 Shown is a front view of a gas measuring device provided in one embodiment of the present application.

[0021] Figure 3 Shown Figure 2 A cross-sectional view of section AA in the illustrated embodiment.

[0022] Figure 4 Shown is a structural schematic diagram of a gas collecting mechanism provided in one embodiment of the present application.

[0023] Figure 5 FIG2 is a schematic structural diagram of a gas measuring device provided by an embodiment of the present application with the shell removed.

[0024] Figure 6 Shown is a left side view of a gas measuring device provided by one embodiment of the present application with the shell removed.

[0025] Figure 7 Shown is a front view of a gas measuring device with the shell removed provided by one embodiment of the present application.

[0026] Figure 8 Shown Figure 7 A cross-sectional view of section BB in the illustrated embodiment.

[0027] Figure 9a Shown is a schematic diagram a of a gas measuring device provided in one embodiment of the present application.

[0028] Figure 9bFIG. 2 shows a schematic diagram b of a gas measuring device provided in an embodiment of the present application.

[0029] Figure 9c Shown is a schematic diagram c of a gas measuring device provided in one embodiment of the present application.

[0030] Figure 9d Shown is a schematic diagram d of a gas measuring device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0032] Figure 1 FIG2 is a schematic structural diagram of a gas measuring device provided in one embodiment of the present application. Figure 2 Shown is a front view of a gas measuring device provided in one embodiment of the present application. Figure 3 Shown Figure 2 A cross-sectional view of section AA in the illustrated embodiment. Figure 4 Shown is a structural schematic diagram of a gas collecting mechanism provided in one embodiment of the present application. Figure 5 FIG2 is a schematic structural diagram of a gas measuring device provided by an embodiment of the present application with the shell removed. Figure 6 Shown is a left side view of a gas measuring device provided by one embodiment of the present application with the shell removed. Figure 7 Shown is a front view of a gas measuring device with the shell removed provided by one embodiment of the present application. Figure 8 Shown Figure 7 The cross-sectional view of the BB section in the embodiment shown. Figure 1-8As shown, the gas measuring device 100 includes: a housing 101, a gas collecting mechanism 102, a fixing frame 103, a first limiting mechanism 104, a second limiting mechanism 105, and an air inlet 106. The gas collecting mechanism 102 includes a first gas collecting chamber 1021 and a second gas collecting chamber 1022. The fixing frame 103 is rotatably connected to the gas collecting mechanism 102. The first limiting mechanism 104 is located below the first gas collecting chamber 1021, and the second limiting mechanism 105 is located below the second gas collecting chamber 1022, and is used to limit the rotation angle of the gas collecting mechanism by colliding with the edge of the gas collecting chamber. The housing 101 is used to accommodate the gas collecting mechanism 102, the fixing frame 103, the first limiting mechanism 104, the second limiting mechanism 105, and the liquid medium. The air inlet 106 is located below the air collecting mechanism 102. Bubbles emerge from the air inlet 106 and rise into an air collecting chamber. As the bubbles accumulate, the liquid medium in the air collecting chamber is gradually discharged. The air collecting mechanism 102 rotates under the buoyancy of the accumulated bubbles, causing the bubbles emerging from the air inlet to rise into another air collecting chamber. This cycle continues until the measurement is stopped.

[0033] Gas measurement device 100 accumulates a preset volume of gas through a cycle, releases it, and counts the volume. The volume of gas flowing through gas measurement device 100 is determined by multiplying the number of rotations counted by the preset volume. The preset volume can be a preset resolution of gas measurement device 100, i.e., the threshold for the gas contained within the gas collection chamber. When the volume of gas contained within the gas collection chamber exceeds the preset volume, the buoyancy generated by bubbles 119 overcomes the rotational force of gas collection mechanism 102, causing it to rotate, resulting in a count.

[0034] Figure 9a Shown is a schematic diagram a of a gas measuring device provided in one embodiment of the present application. Figure 9b FIG. 2 shows a schematic diagram b of a gas measuring device provided in an embodiment of the present application. Figure 9c Shown is a schematic diagram c of a gas measuring device provided in one embodiment of the present application. Figure 9d FIG. 2 is a schematic diagram of a gas measuring device provided by an embodiment of the present application. Figures 9a-9d As shown, the working principle of the gas measuring device 100 is as follows: gas enters the liquid medium 117 from the air inlet 106 in the form of bubbles 119, rises in the liquid medium 117, and enters a gas collecting chamber. Here, the edge of the first gas collecting chamber 1021 collides with the first limiting mechanism 104, so that the first gas collecting chamber 1021 stays directly above the air inlet 106. For example, the bubble 119 first enters the first gas collecting chamber 1021. Figure 9aAs shown, as the bubbles 119 accumulate, the buoyancy generated by the bubbles 119 in the first gas collecting chamber 1021 becomes larger and larger. When the buoyancy generated by the bubbles 119 in the first gas collecting chamber 1021 is greater than the rotational force of the gas collecting mechanism 102, the gas collecting mechanism 102 rotates, causing the first gas collecting chamber 1021 to rise close to the liquid medium plane 118, as shown in FIG. Figure 9b As shown, the bubbles 119 in the first gas collecting chamber 1021 are released into the space above the interior of the housing 101. At the same time, the second gas collecting chamber 1022 rotates to be directly above the air inlet 106, and the bubbles 119 rise into the second gas collecting chamber 1022. The edge of the second gas collecting chamber 1022 collides with the second limiting mechanism 105, so that the second gas collecting chamber 1022 stays directly above the air inlet 106. Figure 9c As shown, as the bubbles 119 accumulate, the buoyancy generated by the bubbles 119 in the second gas collecting chamber 1022 becomes larger and larger. When the buoyancy generated by the bubbles 119 in the second gas collecting chamber 1022 is greater than the rotational force of the gas collecting mechanism 102, the gas collecting mechanism 102 rotates, causing the second gas collecting chamber 1022 to rise close to the liquid medium plane 118, as shown in FIG. Figure 9d As shown, the bubbles 119 in the second air collecting chamber 1022 are released into the space above the interior of the shell 101. At the same time, the first air collecting chamber 1021 rotates to directly above the air inlet 106, and the bubbles 119 rise into the first air collecting chamber 1021. The edge of the first air collecting chamber 1021 collides with the first limiting mechanism 104, so that the first air collecting chamber 1021 stays directly above the air inlet 106 and continues to accumulate bubbles 119.

[0035] The liquid medium 117 may be water, or other liquid medium that does not dissolve the gas to be measured and does not generate gas.

[0036] In one embodiment, the gas measurement device 100 further includes an input port 113 and an air inlet line 108 . Gas enters the air inlet line 108 from the input port 113 , and then enters the air inlet 106 through the air inlet line 108 .

[0037] The fixing frame 103 and the gas collecting mechanism 102 can be rotatably connected by a hole-shaft fit, or by other means. As long as the rotatable connection is achieved, this application does not specifically limit the method of rotatable connection.

[0038] The first limiting mechanism 104 and the second limiting mechanism 105 can both be block structures or strip structures, as long as they can collide with the gas collecting mechanism 102 to achieve the limiting purpose. This application does not make any specific restrictions on the structures of the first limiting mechanism 104 and the second limiting mechanism 105.

[0039] It can be seen that the gas measuring device 100 sets two gas collecting chambers so that the bubbles 119 emerging from the air inlet 106 enter one gas collecting chamber, and when the accumulated bubble volume reaches a preset volume, the gas collecting mechanism 102 rotates to release the gas in the gas collecting chamber, and the bubbles 119 emerging from the air inlet rotate and enter the other gas collecting chamber, thereby avoiding gas leakage and improving the accuracy of the gas measurement results. In addition, by setting the first limiting mechanism 104 and the second limiting mechanism 105, the rotation angle of the gas collecting mechanism 102 can be limited, thereby accurately limiting the center of gravity position of the gas collecting mechanism 102 when it rotates to the preset angle, thereby accurately limiting the buoyancy of the gas required for the rotation of the gas collecting mechanism 102, thereby accurately limiting the volume of gas in the gas collecting chamber corresponding to one rotation, thereby further improving the accuracy of gas measurement.

[0040] In one embodiment of the present application, the first gas collecting chamber 1021 and the second gas collecting chamber 1022 are symmetrically arranged, so that the gas collecting mechanism 102 can rotate under the buoyancy generated by the same volume of gas, further improving the accuracy of gas measurement.

[0041] In one embodiment of the present application, the first position-limiting mechanism 104 includes a first fixing unit 1041 and a first stroke adjustment unit 1042. The first fixing unit 1041 is fixedly connected to the fixing frame 103. The first stroke adjustment unit 1042 is located above the first fixing unit 1041 and is movably connected to the first fixing unit 1041 in an upward and downward direction, thereby adjusting the height of the first position-limiting mechanism 104 and thereby adjusting the collision position with the first plenum chamber 1021.

[0042] Specifically, the first stroke adjustment unit 1042 can be threadedly connected to the first fixing unit 1041, and the height of the first stroke adjustment unit 1042 can be raised or lowered by rotating the thread. The first stroke adjustment unit 1042 can also be connected to the first fixing unit 1041 by snapping, and the height of the first stroke adjustment unit 1042 can be raised or lowered by adjusting the snap's engagement position. As long as the first stroke adjustment unit 1042 and the first fixing unit 1041 can be moved vertically, this application does not specifically limit the connection method between the first stroke adjustment unit 1042 and the first fixing unit 1041.

[0043] Similarly, the second position-limiting mechanism 105 includes a second fixing unit 1051 and a second stroke adjustment unit 1052. The second fixing unit 1051 is fixedly connected to the fixing frame 103. The second stroke adjustment unit 1052 is located above the second fixing unit 1051 and is vertically movably connected to the second fixing unit 1051, thereby adjusting the height of the second position-limiting mechanism 105 and, therefore, adjusting the collision position with the first plenum chamber 1021.

[0044] Specifically, the second stroke adjustment unit 1052 can be threadedly connected to the second fixing unit 1051, and the height of the second stroke adjustment unit 1052 can be raised or lowered by rotating the thread. The second stroke adjustment unit 1052 can also be connected to the second fixing unit 1051 by snapping, and the height of the second stroke adjustment unit 1052 can be raised or lowered by adjusting the snap's engagement position. As long as the second stroke adjustment unit 1052 and the second fixing unit 1051 can be moved vertically, this application does not specifically limit the connection method of the second stroke adjustment unit 1052 and the second fixing unit 1051.

[0045] By making the height of the first limiting mechanism 104 and the second limiting mechanism 105 adjustable, the collision position with the gas collecting mechanism 102 can be adjusted, and the rotation angle of the gas collecting mechanism 102 can be adjusted, so that the center of gravity of the gas collecting mechanism 102 after stopping rotation due to the collision with the first limiting mechanism 104 and the second limiting mechanism 105 can be adjusted, and the buoyancy of the gas required for the rotation of the gas collecting mechanism 102 can be adjusted, so that the volume of the gas in the gas collecting chamber corresponding to one rotation can be adjusted, that is, the resolution of the gas measuring device 100 can be adjusted, thereby improving the accuracy of the resolution of the gas measuring device 100.

[0046] In one embodiment of the present application, the gas collection mechanism 102 further includes a partition 1023 and a bubble guiding unit 107. The partition 1023 is used to separate the first gas collection chamber 1021 from the second gas collection chamber 1022, thereby achieving symmetrical separation between the first gas collection chamber 1021 and the second gas collection chamber 1022. The bubble guiding unit 107 can be a sheet-like structure or a block-like structure, and is fixedly connected to the partition 1023 to prevent the upward path of bubbles from deviating.

[0047] Specifically, the bubble guide unit 107 can be fixedly connected to the partition 1023 by bonding. The bubble guide unit 107 can also be integrally formed with the partition 1023 during manufacturing. This application does not specifically limit the connection method between the bubble guide unit 107 and the partition 1023.

[0048] By providing the bubble guiding unit 107 , the deviation of the rising route of the bubbles can be blocked, thereby preventing the bubbles from entering the first gas collecting chamber 1021 and the second gas collecting chamber 1022 at the same time.

[0049] In one embodiment of the present application, Figure 8 As shown, the cross-section of the bubble guiding unit 107 parallel to the side wall of the gas collecting mechanism can be in the shape of an inverted triangle, thereby increasing the space for the bubble rising route to deviate and improving the ability of the gas measuring device 100 to resist external vibration and other interference.

[0050] It should be understood that the shape of the cross section of the bubble guiding unit 107 parallel to the side wall of the gas collecting mechanism can also be an inverted trapezoid, an inverted triangle with rounded corners, an inverted trapezoid with rounded corners, etc., as long as the space for the bubble rising route to be offset can be increased. This application does not make any specific limitation on the shape of the cross section of the bubble guiding unit 107 parallel to the side wall of the gas collecting mechanism.

[0051] In one embodiment of the present application, the air inlet 106 can be a circular through hole, one end of the air inlet 106 is connected to one end of the air inlet pipe 108, the gas enters from the other end of the air inlet pipe 108, and emerges from the other end of the air inlet 106, and the diameter of the circular through hole is set to be smaller than the inner diameter of the air inlet pipe 108.

[0052] By setting the diameter of the circular through-hole smaller than the inner diameter of the air inlet line 108, gas is allowed to flow from the larger diameter air inlet line 108 into the smaller diameter circular through-hole, thereby increasing the gas pressure and allowing bubbles to rise smoothly into the gas collection chamber. Simultaneously, by reducing the diameter of the air inlet 106, the diameter of the bubbles emerging from the air inlet 106 is reduced, thereby reducing the probability of bubble bursting and bubble deviation from the rising path, thereby increasing the probability of bubbles rising smoothly into the gas collection chamber, further improving the accuracy of gas measurement.

[0053] In one embodiment of the present application, the gas collection mechanism 102 further includes a partition 1023, a rod-shaped structure 109, and a transmitting unit 110. The partition 1023 is used to separate the first gas collection chamber 1021 from the second gas collection chamber 1022, thereby achieving symmetrical separation between the first gas collection chamber 1021 and the second gas collection chamber 1022. One end of the rod-shaped structure 109 is connected to the partition 1023 and swings with the gas collection mechanism 102. The transmitting unit 110 is fixedly mounted on the other end of the rod-shaped structure 109 and is used to transmit a swing signal of the gas collection mechanism.

[0054] The sending unit 110 can be a sending unit of a sensor separated from the receiving unit, such as a Hall sensor, a photosensor, a light counter, or NFC. As long as it is a sending unit of a sensor separated from the receiving unit, this application does not specifically limit the type of the sending unit 110.

[0055] By using the sending unit 110 to obtain the swing signal of the gas collecting mechanism and sending the swing signal, the number of swings can be automatically calculated by receiving the swing signal, reducing the probability of incorrectly calculating the number of times, thereby further improving the accuracy of gas measurement.

[0056] In one embodiment of the present application, the gas measuring device 100 also includes a receiving unit, which is communicatively connected to the sending unit 110 and receives the swing signal sent by the sending unit 110, thereby automatically calculating the number of swings, reducing the probability of incorrectly calculating the number of times, and further improving the accuracy of gas measurement.

[0057] In one embodiment of the present application, the rod-shaped structure 109 has a streamlined shape, thereby reducing the impact of the movement of the rod-shaped structure 109 on the liquid medium 117, thereby reducing interference with the bubble movement path, and further improving the accuracy of gas measurement.

[0058] In one embodiment of the present application, the receiving unit is located outside the housing 101. The inner bottom surface of the housing 101 includes a recessed portion 116, which provides a space for the end of the rod-shaped structure 109 on which the transmitting unit 110 is mounted. When the rod-shaped structure 109 swings to the bottom of the housing 101, it passes through the recessed portion 116, thereby reducing the volume of the housing 101. At the same time, the recessed portion 116 forms a protrusion on the outside of the housing 101, and the receiving unit can be installed in the protruding position, thereby increasing the contact area between the transmitting unit 110 and the receiving unit when passing through the recessed portion 116, reducing the distance between the transmitting unit 110 and the receiving unit when passing through the recessed portion 116, thereby making the transmission of the swing signal more accurate, thereby further improving the accuracy of gas measurement.

[0059] In one embodiment of the present application, the shell 101 is made of a transparent material, which makes it easier for the user to observe the movement of the internal components of the shell 101 .

[0060] Specifically, the material of the shell 101 can be polycarbonate (PC) or other transparent materials that can contain the liquid medium 117. As long as it is a transparent material that can contain the liquid medium 117, this application does not specifically limit the material of the shell 101.

[0061] In one embodiment of the present application, the housing 101 includes a maximum liquid level scale line and a minimum liquid level scale line. The maximum liquid level scale line and the minimum liquid level scale line are used to indicate the liquid level of the liquid medium 117 contained in the housing 101. This ensures that the liquid level of the liquid medium 117 contained in the housing 101 is accurately located between the maximum liquid level scale line and the minimum liquid level scale line. It also facilitates the user to observe whether the actual liquid level of the liquid medium 117 is between the maximum liquid level scale line and the minimum liquid level scale line, thereby ensuring the measurement accuracy of the gas measurement device 100.

[0062] In one embodiment of the present application, the housing 101 includes a first arc-shaped recess 114. The first arc-shaped recess 114 is located outside the housing. The shape of the cross section of the first arc-shaped recess 114 perpendicular to the housing 101 may include an arc.

[0063] By providing a first arc-shaped recess 114 and making the shape of the cross section of the first arc-shaped recess 114 perpendicular to the shell 101 include an arc, the shell 101 can be snapped into place with a raised structure on a desktop or other device, so that the gas measuring device 100 can be stably placed on a desktop or other device, providing a stable measurement environment for the gas measuring device 100, thereby further improving the accuracy of gas measurement.

[0064] In one embodiment, the housing 101 further includes a second arc-shaped recess 115. The second arc-shaped recess 115 is located outside the housing. The shape of the cross section of the second arc-shaped recess 115 perpendicular to the housing 101 may include an arc.

[0065] By providing a second arc-shaped recess 115 and making the shape of the cross-section of the second arc-shaped recess 115 perpendicular to the shell 101 include an arc line, the firmness of the connection between the shell 101 and the raised structure of the desktop or other equipment is increased, thereby further improving the stability of the gas measuring device 100 when placed on the desktop or other equipment, providing a more stable measurement environment for the gas measuring device 100, thereby further improving the accuracy of gas measurement.

[0066] It should be understood that the shell 101 can also include a larger number of arc-shaped recesses, and the number of arc-shaped recesses can be set according to specific application scenarios. This application does not specifically limit the number of arc-shaped recesses.

[0067] In one embodiment of the present application, the gas measuring device 100 also includes a pipeline guide unit 111, which is fixedly connected to the fixed frame 103. The pipeline guide unit 111 can be a tubular structure, a groove-shaped structure, or a tubular structure and a groove-shaped structure at the same time, so that it can surround and / or semi-surround the intake pipeline 108, so that the intake pipeline 108 is laid along the pipeline guide unit and the intake pipeline 108 is fixed to prevent vibration and other interference caused by the flow of gas in the intake pipeline 108, thereby providing a stable measurement environment for the gas measuring device 100, thereby further improving the accuracy of gas measurement.

[0068] In one embodiment of the present application, the gas measuring device 100 further includes a gas outlet 112 located at the upper portion of the housing 101 for releasing gas emerging from the liquid medium 117 , thereby facilitating the collection and reuse of the gas emerging from the liquid medium 117 .

[0069] In one embodiment of the present application, the shell 101 may include a lower shell 1011 and an upper shell 1012. The lower shell 1011 and the upper shell 1012 are detachably connected, for example, they can be snap-connected or threaded. As long as they are detachably connected, the present application does not specifically limit the connection method between the lower shell 1011 and the upper shell 1012.

[0070] By making the housing 101 include a lower housing 1011 and an upper housing 1012 , and making the lower housing 1011 and the upper housing 1012 detachably connected, it is convenient for users to observe, repair, and maintain the components inside the gas measuring device 100 , and it is also convenient to manufacture the housing 101 .

[0071] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A gas measuring device, characterized in that: include: A gas collecting mechanism, comprising two gas collecting chambers; a fixed frame, rotatably connected to the gas collecting mechanism; a limiting mechanism, located below the two gas collecting chambers, for limiting the rotation angle of the gas collecting mechanism by colliding with the edges of the gas collecting chambers; a housing for accommodating the gas collecting mechanism, the fixing frame, the limiting mechanism, and the liquid medium; and an air inlet located below the air collecting mechanism, wherein bubbles emerge from the air inlet and rise into one of the air collecting chambers. As bubbles accumulate, the liquid medium in the air collecting chamber is gradually discharged. The air collecting mechanism rotates under the buoyancy of the accumulated bubbles, causing the bubbles emerging from the air inlet to rise into another of the air collecting chambers. The limiting mechanism includes: a fixing unit fixedly connected to the fixing frame; and a stroke adjustment unit located above the fixing unit and movably connected to the fixing unit up and down, thereby achieving height adjustment of the limiting mechanism, thereby adjusting the collision position with the two gas collecting chambers; The air inlet includes a circular through hole, the diameter of which is smaller than the inner diameter of the air inlet pipe; The limiting mechanism includes a first limiting mechanism and a second limiting mechanism; the first limiting mechanism includes a first fixing unit and a first stroke adjustment unit; the first fixing unit is fixedly connected to the fixing frame; the first stroke adjustment unit is located above the first fixing unit and is movably connected to the first fixing unit up and down, thereby realizing height adjustment of the first limiting mechanism, thereby adjusting the collision position with the first gas collecting chamber; the second limiting mechanism includes a second fixing unit and a second stroke adjustment unit; the second fixing unit is fixedly connected to the fixing frame; the second stroke adjustment unit is located above the second fixing unit and is movably connected to the second fixing unit up and down, thereby realizing height adjustment of the second limiting mechanism, thereby adjusting the collision position with the second gas collecting chamber; One end of the rod-shaped structure is connected to the partition and swings with the gas collecting mechanism; the recessed portion provides an accommodation space for one end of the rod-shaped structure on which a sending unit is installed. The sending unit is fixedly installed at the other end of the rod-shaped structure and is used to send the swing signal of the gas collecting mechanism; when the rod-shaped structure swings to the bottom of the shell, it passes through the recessed portion, thereby reducing the volume of the shell. At the same time, the recessed portion forms a bulge on the outside of the shell, and the receiving unit is installed in the raised position, thereby increasing the contact area between the sending unit and the receiving unit when passing through the recessed portion, and reducing the distance between the sending unit and the receiving unit when passing through the recessed portion.

2. The gas measuring device according to claim 1, characterized in that The two gas collecting chambers are symmetrically arranged.

3. The gas measuring device according to claim 1, characterized in that The gas collecting mechanism further comprises: A partition is used to separate the two gas collecting chambers to achieve symmetrical separation of the two gas collecting chambers; and a bubble guiding unit, which includes a sheet or block structure, fixedly connected to the partition of the two gas collecting chambers, and is used to prevent the deviation of the rising path of the bubbles.

4. The gas measuring device according to claim 3, characterized in that A cross-section of the bubble guide unit parallel to a side wall of the gas collecting mechanism may have an inverted triangle shape.

5. The gas measuring device according to claim 1, characterized in that The air inlet includes a circular through hole, one end of the air inlet is connected to one end of the air inlet pipeline, the gas enters from the other end of the air inlet pipeline, and emerges from the other end of the air inlet.

6. The gas measuring device according to claim 1, characterized in that The gas collecting mechanism further comprises: The partition is used to separate the two gas collecting chambers to achieve symmetrical separation of the two gas collecting chambers.

7. The gas measuring device according to claim 6, characterized in that The rod-shaped structure has a streamlined shape.

8. The gas measuring device according to claim 7, characterized in that The measuring device further comprises: The receiving unit is communicatively connected with the sending unit and receives the swing signal sent by the sending unit.

9. The gas measuring device according to claim 1, characterized in that The shell is made of a transparent material.

10. The gas measuring device according to claim 1, characterized in that The housing comprises: an arc-shaped recess located on the outer side of the shell; Wherein, the shape of the cross section of the arc-shaped recess perpendicular to the shell includes an arc line.

11. The gas measuring device according to claim 1, characterized in that The device further comprises: A pipeline guide unit is fixedly connected to the fixing frame. The pipeline guide unit includes a tubular structure and / or a groove structure, which is used to surround or semi-surround the air intake pipeline, so that the air intake pipeline is laid along the pipeline guide unit.

12. The gas measuring device according to claim 1, characterized in that The device further comprises: The gas outlet is located at the upper portion of the shell and is used to release the gas emitted from the liquid medium.

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