Physical adsorption instrument capable of detecting automobile exhaust
By designing limit stable connection components in the physical adsorption instrument, the problem of shaking, offset or pouring of the Dewar bottle during use is solved, and the measurement efficiency and detection accuracy are improved.
Patent Information
- Application Number
- CN202422118285.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-30
AI Technical Summary
During the connection and use of existing physical adsorbents, the Dewar bottles are easily shaken, offset or poured, affecting the measurement efficiency.
A connecting assembly is designed, including mounting grooves, limit grooves, fixing rings, snap teeth and scroll springs, through which the limit connection between the Dewar bottle and the base plate is achieved to avoid offset and tipping.
It effectively avoids the offset and pouring of the Dewar bottle during use, improves the measurement efficiency, and ensures the accuracy of the detection results.
Smart Images
Figure CN223006137U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of physical adsorption instruments, in particular to a physical adsorption instrument capable of detecting automobile exhaust gas. Background Technique
[0002] Automobile exhaust gas refers to the waste gas discharged by an automobile during operation, mainly including harmful substances such as carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx), and particulate matter (PM). Automobile exhaust gas has great harm to the environment and human health. It not only causes air pollution and affects air quality, but also damages the human respiratory system, cardiovascular system, etc., leading to various diseases. In addition, carbon dioxide (CO2) in automobile exhaust gas is also one of the main greenhouse gases causing global climate change. Therefore, in order to protect the environment and human health, it is necessary to detect automobile exhaust gas. The main purpose of detecting automobile exhaust gas is to determine whether the emissions of harmful substances in automobile exhaust gas meet the national and local emission standards. If the automobile exhaust gas emissions exceed the emission standards, corresponding measures need to be taken for treatment to reduce the harm of automobile exhaust gas to the environment and human health.
[0003] There are various existing detection devices, such as physical adsorption instruments. The Dewar flask in the physical adsorption instrument is mainly used to provide a low-temperature environment to achieve physical adsorption measurement of samples. However, in specific use, when the Dewar flask is connected, it is mostly docked with the physical adsorption instrument by placing it. When the Dewar flask is lifted, it will shake, and the Dewar flask cannot be limited and fixed, and it will be overturned due to accidental touch by personnel, affecting the measurement efficiency. Content of the Utility Model
[0004] The purpose of the utility model is to provide a physical adsorption instrument capable of detecting automobile exhaust gas to solve the problems put forward in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A physical adsorption instrument capable of detecting automobile exhaust gas, including a physical adsorption instrument, a sliding groove is opened on the surface of the physical adsorption instrument, a connecting plate is slidably connected to the inner wall of the sliding groove, a bottom plate is fixed on the surface of the connecting plate, a Dewar flask is placed on the surface of the bottom plate, and a connecting component for limiting the Dewar flask is arranged on the surfaces of the bottom plate and the Dewar flask. The connecting component includes:
[0006] An installation groove is opened at the bottom of the Dewar flask, a limiting groove is opened inside the installation groove, and a fixing ring is fixed on the top of the bottom plate.
[0007] Preferably, the connecting assembly also includes a groove, the groove is opened at the top of the bottom plate, the inner wall of the fixing ring is rotatably connected to a fixing disk, the inner side of the fixing disk is fixed with a first latch tooth, the inner wall of the groove is rotatably connected to a fixing column, a connecting hole is opened on the surface of the fixing disk, the top of the fixing column passes through the connecting hole, the surface of the fixing column is fixed with a second latch tooth, the surface of the fixing column is fixed with a third latch tooth, the bottom of the fixing disk is fixed with a fixing rod, the bottom of the fixing rod is rotatably connected to the bottom of the inner wall of the groove, and the inner wall of the groove is fixed A circular ring is provided, a volute spring is fixed on the inner side of the circular ring, one end of the volute spring away from the circular ring is fixed on the surface of the fixed rod, a rack is provided inside the fixed ring, the rack passes through the fixed ring, and the rack is slidably connected with the fixed ring, the rack is meshed with the second latch tooth, the connecting assembly also includes a releasing part, the Dewar flask is docked with the base plate, the fixed ring enters the installation groove, and the rack enters the limiting groove through the first latch tooth, the fixed column, the second latch tooth, the third latch tooth, the circular ring, and the volute spring, so that the Dewar flask and the base plate are limited stably, and the Dewar flask will not be offset.
[0008] Preferably, the releasing member includes a gear, which is penetrated by a fixed rod and fixedly connected to the fixed rod. A connecting rod is provided on the surface of the base plate, which penetrates the base plate and the groove and is connected to the base plate. A latch tooth four is fixed on the surface of the connecting rod, which meshes with the gear. When the connecting rod is pressed, the latch tooth four moves, and the gear drives the fixed rod and the fixed disk to rotate, so that each rack is disengaged from the limiting groove through the latch tooth one, the fixed column, the latch tooth two and the latch tooth three.
[0009] Preferably, one end of the rack away from the fixed column is arranged as an inclined surface, so that when it is interfered, the rack can be moved to facilitate the docking of the Dewar flask with the bottom plate.
[0010] Preferably, a cavity is provided inside the physical adsorption instrument, a motor is fixed inside the cavity, the output shaft of the motor passes through the cavity and the slide groove, the inner wall of the slide groove is rotatably connected with a threaded rod, the threaded rod passes through a connecting plate, the threaded rod is threadedly connected to the connecting plate, the top of the threaded rod is fixed to the bottom of the output shaft of the motor, and the motor is turned on for forward or reverse rotation, so that the threaded rod drives the connecting plate and the bottom plate to move up or down, thereby driving the Dewar flask to move synchronously, which is convenient for detection and removal.
[0011] Preferably, the connecting hole is configured to be arc-shaped, so that when the fixing disk rotates, it will not affect the fixing column 86, thereby avoiding motion interference.
[0012] Preferably, the fixed column, rack, second latch tooth and third latch tooth are each provided in four groups, and the four groups of fixed columns, racks, second latch teeth and third latch teeth are all arranged in a circular array with the center of the fixed ring as the axis, thereby increasing the stability of the bottom plate and the Dewar flask.
[0013] Compared with the prior art, the utility model provides a physical adsorption instrument capable of detecting automobile exhaust gas, which has the following beneficial effects:
[0014] 1. For the physical adsorption instrument capable of detecting automobile exhaust gas, through the arranged connection assembly, the Dewar flask is butted against the bottom plate, the fixing ring enters the installation groove, and through each first tooth, fixing column, second tooth, third tooth, circular ring and scroll spring, the rack enters the limiting groove, so that the Dewar flask and the bottom plate are stably limited, the Dewar flask will not shift, and the situation of accidental touch and tipping is avoided, thus affecting the detection efficiency.
[0015] 2. For the physical adsorption instrument capable of detecting automobile exhaust gas, when the motor rotates forward or reversely, the threaded rod drives the connecting plate and the bottom plate to move up or down, and then the Dewar flask can be driven to move synchronously, which is convenient for detection and taking out. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is the front view structural schematic diagram of the utility model;
[0017] Figure 2 is the front view internal structural schematic diagram of the utility model;
[0018] Figure 3 is the side view structural schematic diagram of the utility model;
[0019] Figure 4 is the partial explosion structural schematic diagram of the utility model;
[0020] Figure 5 is the partial top view structural schematic diagram of the utility model;
[0021] Figure 6 is the partial cross-sectional view structural schematic diagram of the utility model.
[0022] In the figure: 1, physical adsorption instrument; 2, chute; 3, cavity; 4, motor; 5, threaded rod; 6, connecting plate; 7, bottom plate; 9, Dewar flask; 8, connection assembly; 80, installation groove; 81, limiting groove; 82, fixing ring; 84, fixing disk; 85, first tooth; 86, fixing column; 87, second tooth; 88, third tooth; 800, connection hole; 801, circular ring; 802, scroll spring; 803, fixing rod; 804, groove; 805, rack; 89, release part; 890, gear; 891, connecting rod; 892, fourth tooth. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] Such as Figures 1-6As shown in the figure, the present utility model provides a technical solution: a physical adsorption instrument capable of detecting automobile exhaust gas, including a physical adsorption instrument 1. A chute 2 is provided on the surface of the physical adsorption instrument 1. A connecting plate 6 is slidably connected to the inner wall of the chute 2. A bottom plate 7 is fixed on the surface of the connecting plate 6. A Dewar flask 9 is placed on the surface of the bottom plate 7. A connecting component 8 for limiting the Dewar flask 9 is provided on the surfaces of the bottom plate 7 and the Dewar flask 9. The connecting component 8 includes: an installation groove 80, which is opened at the bottom of the Dewar flask 9. A limiting groove 81 is opened inside the installation groove 80. A fixing ring 82 is fixed on the top of the bottom plate 7. The connecting component 8 further includes a groove 804, which is opened on the top of the bottom plate 7. A fixing disk 84 is rotatably connected to the inner wall of the fixing ring 82. A first set of teeth 85 is fixed on the inner side of the fixing disk 84. A fixing column 86 is rotatably connected to the inner wall of the groove 804. A connecting hole 800 is opened on the surface of the fixing disk 84. The top of the fixing column 86 penetrates through the connecting hole 800. A second set of teeth 87 is fixed on the surface of the fixing column 86. A third set of teeth 88 is fixed on the surface of the fixing column 86. A fixing rod 803 is fixed on the bottom of the fixing disk 84. The bottom of the fixing rod 803 is rotatably connected to the bottom of the inner wall of the groove 804. A circular ring 801 is fixed on the inner wall of the groove 804. A scroll spring 802 is fixed on the inner side of the circular ring 801. One end of the scroll spring 802 away from the circular ring 801 is fixed on the surface of the fixing rod 803. A rack 805 is provided inside the fixing ring 82. The rack 805 penetrates through the fixing ring 82 and is slidably connected to the fixing ring 82. The rack 805 meshes with the second set of teeth 87. The connecting component 8 further includes a releasing member 89. The releasing member 89 includes a gear 890. The gear 890 is penetrated by the fixing rod 803 and is fixed to the fixing rod 803. A connecting rod 891 is provided on the surface of the bottom plate 7. The connecting rod 891 penetrates through the bottom plate 7 and the groove 804 and is connected to the bottom plate 7. A fourth set of teeth 892 is fixed on the surface of the connecting rod 891. The fourth set of teeth 892 meshes with the gear 890. One end of the rack 805 away from the fixing column 86 is provided as an inclined surface. The connecting hole 800 is provided as an arc. The fixing column 86, the rack 805, the second set of teeth 87, and the third set of teeth 88 are all provided in four groups, and the four groups of fixing columns 86, racks 805, second set of teeth 87, and third set of teeth 88 are all circumferentially arranged around the center of the fixing ring 82. The Dewar flask 9 is butted against the bottom plate 7. The fixing ring 82 enters the installation groove 80. Through each first set of teeth 85, fixing column 86, second set of teeth 87, third set of teeth 88, circular ring 801, and scroll spring 802, the rack 805 enters the limiting groove 81, so that the Dewar flask 9 and the bottom plate 7 are stably limited, the Dewar flask 9 will not shift, and there will be no accidental touch and tipping, which will affect the detection. Press the connecting rod 891 to drive the fourth set of teeth 892 to move. At this time, when the gear 890 drives the fixing rod 803 to rotate, the fixing disk 84 rotates at this time. Through the first set of teeth 85, fixing column 86, second set of teeth 87, and third set of teeth 88, each rack 805 is separated from the limiting groove 81, and at this time, the personnel can take it out normally.
[0024] The interior of the physical adsorption instrument 1 is provided with a cavity 3. A motor 4 is fixed inside the cavity 3. The output shaft of the motor 4 penetrates through the cavity 3 and the chute 2. The inner wall of the chute 2 is rotatably connected with a threaded rod 5. The threaded rod 5 penetrates through the connecting plate 6, and the threaded rod 5 is threadedly connected with the connecting plate 6. The bottom of the output shaft of the motor 4 is fixed to the top of the threaded rod 5. When the motor 4 is started to rotate forward, the threaded rod 5 drives the connecting plate 6 and the bottom plate 7 to move upward. The detection head of the physical adsorption instrument 1 is inserted into the Dewar flask 9 to detect the tail gas.
[0025] When it is necessary to detect the automobile tail gas, the tail gas is connected into the Dewar flask 9 through a conduit. At this time, the Dewar flask 9 is docked with the bottom plate 7, so that the fixing ring 82 enters the installation groove 80. At this time, the inner wall of the installation groove 80 abuts against the inclined surface of the rack 805. At this time, the rack 805 moves closer to the center of the fixing ring 82, driving the second engaging tooth 87 and the fixing column 86 to rotate. Furthermore, the third engaging tooth 88 drives the first engaging tooth 85 and the fixing disk 84 to rotate synchronously. The fixing disk 84 drives the fixing rod 803 to rotate. At this time, the scroll spring 802 is wound up. When the fixing disk 84 rotates, through the synchronous rotation of the first engaging teeth 85, the fixing columns 86, the second engaging teeth 87, and the third engaging teeth 88, the racks 805 move synchronously. When the rack 805 is parallel to the position of the limiting groove 81, the scroll spring 802 is released, and the fixing rod 803 rotates in the reverse direction. At this time, the fixing disk 84 rotates in the reverse direction. Through the first engaging tooth 85, the fixing column 86, the second engaging tooth 87, and the third engaging tooth 88, at this time, the rack 805 enters the limiting groove 81, so that the Dewar flask 9 and the bottom plate 7 can be stably limited. During the detection, the motor 4 is started to rotate forward, and the threaded rod 5 drives the connecting plate 6 and the bottom plate 7 to move upward. The detection head of the physical adsorption instrument 1 is inserted into the Dewar flask 9 to detect the tail gas, and the Dewar flask 9 will not shift, and there will be no accidental touch and tipping, affecting the detection. When it is necessary to take out the Dewar flask 9, the motor 4 is started to rotate in the reverse direction. Through the threaded rod 5 and the connecting plate 6, the Dewar flask 9 moves downward to disengage from the detection head of the physical adsorption instrument 1. At this time, the connecting rod 891 is pressed, driving the fourth engaging tooth 892 to move. At this time, when the gear 890 drives the fixing rod 803 to rotate, the fixing disk 84 rotates at this time. Through the first engaging tooth 85, the fixing column 86, the second engaging tooth 87, and the third engaging tooth 88, the racks 805 are disengaged from the limiting groove 81, and then the personnel can take it out normally.
[0026] The above text generally describes the present invention in detail, but based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, the modifications or improvements made without departing from the spirit of the present invention are all within the protection scope of the present invention.
Claims
1. A physical adsorption instrument for detecting automobile exhaust, comprising a physical adsorption instrument (1), characterized in that: The surface of the physical adsorption instrument (1) is provided with a slide groove (2), the inner wall of the slide groove (2) is slidably connected with a connecting plate (6), the surface of the connecting plate (6) is fixed with a bottom plate (7), a Dewar flask (9) is placed on the surface of the bottom plate (7), and the surfaces of the bottom plate (7) and the Dewar flask (9) are provided with a connecting component (8) for limiting the position of the Dewar flask (9), and the connecting component (8) comprises: a mounting groove (80), the mounting groove (80) is provided at the bottom of the Dewar flask (9), a limiting groove (81) is provided on the inner side of the mounting groove (80), and a fixing ring (82) is fixed to the top of the bottom plate (7).
2. A physical adsorption instrument for detecting automobile exhaust according to claim 1, characterized in that: The connecting assembly (8) further comprises a groove (804), wherein the groove (804) is provided at the top of the bottom plate (7), the inner wall of the fixing ring (82) is rotatably connected to a fixing plate (84), the inner side of the fixing plate (84) is fixed with a first latching tooth (85), the inner wall of the groove (804) is rotatably connected to a fixing column (86), a connecting hole (800) is provided on the surface of the fixing plate (84), the top of the fixing column (86) passes through the connecting hole (800), a second latching tooth (87) is fixed on the surface of the fixing column (86), a third latching tooth (88) is fixed on the surface of the fixing column (86), and a fixing rod is fixed on the bottom of the fixing plate (84). (803), the bottom of the fixing rod (803) is rotatably connected to the bottom of the inner wall of the groove (804), the inner wall of the groove (804) is fixed with a circular ring (801), the inner side of the circular ring (801) is fixed with a spiral spring (802), one end of the spiral spring (802) away from the circular ring (801) is fixed to the surface of the fixing rod (803), a rack (805) is arranged inside the fixing ring (82), the rack (805) passes through the fixing ring (82), and the rack (805) is slidably connected to the fixing ring (82), the rack (805) is meshed with the second latch tooth (87), and the connecting assembly (8) also includes a release member (89).
3. A physical adsorption instrument for detecting automobile exhaust according to claim 2, characterized in that: The release member (89) comprises a gear (890), the gear (890) is penetrated by a fixed rod (803), and the gear (890) is fixedly connected to the fixed rod (803); a connecting rod (891) is provided on the surface of the base plate (7), the connecting rod (891) penetrates the base plate (7) and the groove (804), and the connecting rod (891) is connected to the base plate (7); a latch tooth four (892) is fixed on the surface of the connecting rod (891), and the latch tooth four (892) is meshed with the gear (890).
4. A physical adsorption instrument for detecting automobile exhaust according to claim 2, characterized in that: One end of the rack (805) away from the fixing column (86) is configured as an inclined surface.
5. A physical adsorption instrument for detecting automobile exhaust according to claim 1, characterized in that: The physical adsorption instrument (1) has a cavity (3) formed inside, a motor (4) is fixed inside the cavity (3), an output shaft of the motor (4) passes through the cavity (3) and the slide groove (2), a threaded rod (5) is rotatably connected to the inner wall of the slide groove (2), the threaded rod (5) passes through a connecting plate (6), the threaded rod (5) is threadedly connected to the connecting plate (6), and the top of the threaded rod (5) is fixed to the bottom of the output shaft of the motor (4).
6. A physical adsorption instrument for detecting automobile exhaust according to claim 2, characterized in that: The connection hole (800) is configured to be arc-shaped.
7. A physical adsorption instrument for detecting automobile exhaust according to claim 2, characterized in that: The fixing column (86), the rack (805), the second latching tooth (87), and the third latching tooth (88) are all provided in four groups, and the four groups of the fixing column (86), the rack (805), the second latching tooth (87), and the third latching tooth (88) are all arranged in a circular array with the center of the fixing ring (82) as the axis center.