阅读说明：本技术 一种适用于多种环境下的气体流量校准仪 (Gas flow calibrator suitable for multiple environment ) 是由 袁德梅 于 2019-12-25 设计创作，主要内容包括：本发明公开了一种适用于多种环境下的气体流量校准仪,包括底板、气罐支架、工作台、安装在气罐支架外表面的固定机构和安装在底板顶端的紧固机构和安装在工作台顶端的连接机构,所述固定机构包括耳片三,所述耳片三安装在气罐支架一侧外表面的边缘处,所述耳片三的内表面套有铆钉,所述铆钉的另一侧的外表面设置有支撑杆,与现有技术相比,本发明具有如下的有益效果：通过设计了安装在气罐支架表面的耳片三和与耳片三相连接的支撑杆便于支撑杆的回收,通过设计了安装在支撑杆另一端的卡块一与卡块二,便于固定气罐支架与工作台之间的位置,通过设计了安装在卡块二和耳片二之间的弹簧,便于推动卡块二向上移动。(The invention discloses a gas flow calibrator suitable for various environments, which comprises a bottom plate, a gas tank support, a workbench, a fixing mechanism arranged on the outer surface of the gas tank support, a fastening mechanism arranged at the top end of the bottom plate and a connecting mechanism arranged at the top end of the workbench, wherein the fixing mechanism comprises a third lug piece, the third lug piece is arranged at the edge of the outer surface of one side of the gas tank support, a rivet is sleeved on the inner surface of the third lug piece, and a supporting rod is arranged on the outer surface of the other side of the rivet. The supporting rod which is arranged on the surface of the gas tank support and is connected with the lug plates in a three-phase mode is convenient for the recovery of the supporting rod, the position between the gas tank support and the workbench is convenient to fix by arranging the first clamping block and the second clamping block which are arranged at the other end of the supporting rod, and the spring arranged between the second clamping block and the second lug plate is convenient to push the second clamping block to move upwards.)

1. The utility model provides a gas flow calibrator suitable for under multiple environment, includes bottom plate (2), gas tank support (8), workstation (17), installs at the fixed establishment of gas tank support (8) surface and install the fastening device on bottom plate (2) top and install the coupling mechanism on workstation (17) top, its characterized in that: the fixing mechanism comprises a third lug (30), the third lug (30) is installed at the edge of the outer surface of one side of the gas tank support (8), a rivet (29) is sleeved on the inner surface of the third lug (30), a support rod (21) is arranged on the outer surface of the other side of the rivet (29), the support rod (21) is movably connected with the third lug (30) through the support rod (21) and the third lug (30) in a sleeved mode, an installation groove (20) is formed in one side of the outer surface of the workbench (17), the support rod (21) is connected with the workbench (17) through the support rod (21) in a sleeved mode through the installation groove (20), a first clamping block (18) is arranged at the other end of the support rod (21), a second lug (26) is arranged on the other side of the outer surface of the workbench (17), and a second clamping block (19) is fixedly connected, the bottom end of the second clamping block (19) is provided with a fastening bolt (24), the sliding rod (25) penetrates through the top end of the second lug (26) and is connected with a positioning plate (28), a spring (27) is sleeved on the outer surface of the bottom end of the sliding rod (25), the spring (27) is fixedly connected with the second lug (26) and the second clamping block (19), and the sliding rod (25) is movably connected with the first clamping block (18) through the first clamping block (18) clamping the second clamping block (19).

2. The gas flow calibrator adapted for use in a plurality of environments according to claim 1, wherein: the fastening mechanism comprises a fixed block (3), the fixed block (3) is arranged on the top end surface of one side of a bottom plate (2), a first gas tank (6) is arranged at the top end of the bottom plate (2), a first sliding groove (34) is formed in the top end of the bottom plate (2), a first moving block (4) is fixedly connected to the top end of the bottom plate (2), a top block (5) is fixedly connected to the top end of the bottom plate (2), a first lug (23) is arranged at the top end of the other side of the bottom plate (2), the first moving block (4) is movably connected with the fixed block (3) through a first gas tank (6) clamped at the rear end of the first moving block (4), the top block (5) is movably connected with a first moving block (4) through a second gas tank (7) clamped at the rear end of the top block (5), a first sliding block (31) is arranged at the bottom end of the first moving block (4), and, the moving block I (4) is clamped with the bottom plate (2) through a sliding block I (31) and a limiting block II (32) and is movably connected with the bottom plate (2), the top block (5) is clamped with the bottom plate (2) through a sliding block II (33) and a limiting block I (22), a fastening bolt (24) is fixedly connected to the surface of the front end of the top block (5), an external thread is arranged on the outer surface of the fastening bolt (24), an internal thread is arranged on the inner wall of the lug I (23), and the lug I (23) is screwed with the internal thread on the inner wall of the lug I (23) through the external thread on the outer surface of the fastening bolt (24) and is fixedly connected with the top block (5).

3. The gas flow calibrator adapted for use in a plurality of environments according to claim 1, wherein: the connecting mechanism comprises a measuring instrument (14), the measuring instrument (14) is arranged at the top end of a workbench (17), one side of the measuring instrument (14) is provided with a second air inlet pipe (12), the second air inlet pipe (12) is sleeved with a second pipeline (10), the outer surface of the second pipeline (10) is provided with a pressing block (41), the second pipeline (10) is fixedly connected with the second air inlet pipe (12) through the pressing block (41) in a clamping mode, the outer surface of the pressing block (41) is provided with a groove (42), a rotating block (35) is arranged on the outer surface of the second pipeline (10), the outer surface of one side of the second pipeline (10) is provided with a first sliding rail (37), one side of the rotating block (35), opposite to the outer surface of the second pipeline (10), is provided with a second sliding groove (36), and the rotating block (35) is connected with the second pipeline (10) through the second sliding groove (36) in a, the edge of the outer surface of one side of the second pipeline (10) is provided with a second sliding rail (39), the outer surface of the second pipeline (10) is provided with a second moving block (40), one side, opposite to the second sliding rail (39), of the second moving block (40) is provided with a third sliding groove (38), and the second moving block (40) is connected with the second pipeline (10) through the third sliding groove (38) in a clamping mode with the second sliding rail (39).

4. The gas flow calibrator adapted for use in a plurality of environments according to claim 1, wherein: the bottom of gas pitcher support (8) is provided with bottom plate (2), the bottom of gas pitcher support (8) is provided with universal wheel (1), the top of gas pitcher (6) is provided with pipeline one (9), the top of gas pitcher two (7) is provided with pipeline two (10), one side of measuring apparatu (14) is provided with intake pipe one (11), gas pitcher one (6) registrate pipeline one (9) and measuring apparatu (14) fixed connection through intake pipe one (11), gas pitcher two (7) registrate pipeline two (10) and measuring apparatu (14) fixed connection through intake pipe two (12), one side of measuring apparatu (14) is provided with gas vent (13), the top of measuring apparatu (14) is provided with handle (15), the front end of measuring apparatu (14) is provided with gas measurement appearance (16).

5. The gas flow calibrator adapted for use in a plurality of environments according to claim 1, wherein: the cross sectional shape of rivet (29) is "worker" font, sliding connection between rivet (29) and bracing piece (21), sliding connection between rivet (29) and auricle three (30), the longitudinal section size of bracing piece (21) is the same with mounting groove (20) longitudinal section size, the longitudinal section size of bracing piece (21) is the same with the longitudinal section size of fixture block one (18) front end.

6. The gas flow calibrator adapted for use in a plurality of environments according to claim 1, wherein: the cross section of the second clamping block (19) is L-shaped, the cross section of the first clamping block (18) is in a shape like a Chinese character 'men', the top end of the second clamping block (19) is connected with the bottom end of the first clamping block (18), the width of the top end of the second clamping block (19) is the same as that of the inner surface of the first clamping block (18), the width of the bottom end of the second clamping block (19) is the same as that of the second lug (26), and the length of the bottom end of the second clamping block (19) is the same as that of the second lug (26).

7. The gas flow calibrator adapted for use in a plurality of environments according to claim 1, wherein: the top end of the second lug piece (26) is provided with a through hole, the cross section of the through hole is the same as that of the sliding rod (25), the sliding rod (25) is in sliding connection with the second lug piece (26), and the positioning plate (28) is in sliding connection with the outer surface of the workbench (17).

8. A gas flow calibrator adapted for use in a plurality of environments, as recited in claim 2, wherein: the specification of fixed block (3) is unanimous with the specification of kicking block (5), the specification of slider one (31) is unanimous with the specification of slider two (33), the specification of stopper two (32) is unanimous with the specification of stopper one (22).

9. A gas flow calibrator adapted for use in a plurality of environments, as recited in claim 2, wherein: the width of the first sliding block (31) is the same as that of the first sliding groove (34), the height of the first sliding block (31) is the same as that of the fastening bolt (24), the width of the second limiting block (32) is the same as that of the first sliding block (31), the length of the second limiting block (32) is twice of that of the first sliding block (31), the first moving block (4) is connected with the bottom plate (2) in a sliding mode, and the top block (5) is connected with the bottom plate (2) in a sliding mode.

10. A gas flow calibrator adapted for use in a plurality of environments, according to claim 3, wherein: the axial cross section of the first sliding rail (37) is T-shaped, the axial cross section of the first sliding rail (37) is the same as that of the second lug plate (26), the longitudinal cross section of the first sliding rail (37) is annular, the width of the second sliding rail (39) is the same as that of the third sliding groove (38), four grooves (42) are formed in the first sliding rail (37), and the four grooves (42) are arranged around the axis of the pressing block (41) at equal intervals.

Technical Field

The invention belongs to the technical field of gas flow calibrators, and particularly relates to a gas flow calibrator suitable for various environments.

Background

The flow meter is mainly used for calibrating the flow of a sampler, and in order to obtain an accurate sampling volume, besides an accurate using method, the flow meter also has to calibrate the flow of the atmospheric sampler regularly, and the flow calibrator is a special instrument for calibrating the flow of the sampler. The traditional gas flow calibrator still has various problems and is difficult to meet the actual use requirements.

For example, the invention with the publication number of CN109323717A discloses a portable gas dynamic calibration instrument, which passes standard concentrations of gas and other gases without this gas at different flow rates in the instrument, thus, a user need only purchase a bottle of gas (e.g., nitrogen) for dilution or zeroing and a bottle of gas of standard concentration for the gas to be diluted, and can prepare different concentrations of gas for verifying the accuracy of the sensor and calibrating the sensor, but the problems that the gas tank support deviates to cause the calibrator to slide off a table top or cause unstable pipeline connection and unstable gas tank placement after the calibrator is installed, so that the gas tank is easy to topple over are not solved, therefore, the pipeline is inconvenient to connect or the tightness of the pipeline connection is influenced, and the traditional pipeline connection is inconvenient to cause the problem of complicated pipeline connection, so that the gas flow calibrator suitable for various environments is provided.

Disclosure of Invention

The invention aims to provide a gas flow calibrator suitable for various environments, and aims to solve the problems that after the calibrator is installed, a gas tank support deviates to cause the calibrator to slide off a table top or cause unstable pipeline connection and unstable gas tank placement, so that the gas tank is easy to topple over, thereby being inconvenient for pipeline connection or influencing the tightness of pipeline connection, and the pipeline connection is complicated due to the conventional inconvenient pipeline connection.

In order to achieve the purpose, the invention provides the following technical scheme: a gas flow calibrator suitable for multiple environments comprises a bottom plate, a gas tank support, a workbench, a fixing mechanism arranged on the outer surface of the gas tank support, a fastening mechanism arranged on the top end of the bottom plate, and a connecting mechanism arranged on the top end of the workbench, wherein the fixing mechanism comprises a third lug, the third lug is arranged on the edge of the outer surface of one side of the gas tank support, a rivet is sleeved on the inner surface of the third lug, a support rod is arranged on the outer surface of the other side of the rivet, the support rod is movably connected with the third lug through a rivet sleeved with the support rod and the third lug, a mounting groove is formed in one side of the outer surface of the workbench, the support rod is connected with the workbench through the mounting groove sleeved with the support rod, a first fixture block is arranged at the other end of the support rod, a second lug, the bottom end of the second clamping block is provided with a fastening bolt, the top end of the sliding rod penetrating through the second lug piece is connected with a positioning plate, a spring is sleeved on the outer surface of the bottom end of the sliding rod, the spring, the second lug piece and the second clamping block are fixedly connected, and the sliding rod is movably connected with the first clamping block through the first clamping block.

Preferably, the fastening mechanism comprises a fixed block, the fixed block is arranged on the top surface of one side of the bottom plate, a first gas tank is arranged at the top end of the bottom plate, a first sliding groove is formed in the top end of the bottom plate, a first moving block is fixedly connected to the top end of the bottom plate, a first top block is fixedly connected to the top end of the bottom plate, a first lug is arranged at the top end of the other side of the bottom plate, the first moving block is movably connected with the fixed block through a first clamping gas tank at the rear end of the first moving block, the top block is movably connected with the first moving block through a second clamping gas tank at the rear end of the top block, a first sliding block is arranged at the bottom end of the first moving block, a second limiting block is arranged at the bottom end of the first sliding block, the first moving block is movably connected with the bottom plate through a first sliding block and a second limiting block clamping, the outer surface of the fastening bolt is provided with external threads, the inner wall of the lug I is provided with internal threads, and the lug I is fixedly connected with the top block through screwing the internal threads of the inner wall of the lug I through the external threads on the outer surface of the fastening bolt.

Preferably, the connecting mechanism comprises a measuring instrument, the measuring instrument is arranged at the top end of the workbench, one side of the measuring instrument is provided with a second air inlet pipe, the second air inlet pipe is sleeved with a second pipeline, a pressing block is arranged on the outer surface of the second pipeline, the second pipeline is fixedly connected with the second air inlet pipe through the pressing block in a clamping manner, the outer surface of the pressing block is provided with a groove, the rotating block is arranged on the outer surface of the second pipeline, the outer surface of one side of the second pipeline is provided with a first sliding rail, a second sliding groove is formed in one side of the rotating block, opposite to the outer surface of the second pipeline, the rotating block is connected with the second pipeline through a first sliding groove and a second sliding rail, a second sliding rail is arranged at the edge of the outer surface of one side of the second pipeline, a second moving block is arranged on the outer surface of the second pipeline, and a third sliding groove is formed in one side, opposite to the second sliding rail, of the second moving block, and the second moving block is connected with the second pipeline through the third sliding groove and the second sliding rail.

Preferably, the bottom of gas pitcher support is provided with the bottom plate, the bottom of gas pitcher support is provided with the universal wheel, the top of gas pitcher one is provided with pipeline one, the top of gas pitcher two is provided with pipeline two, one side of measuring apparatu is provided with intake pipe one, gas pitcher one registrates pipeline one and measuring apparatu fixed connection through the intake pipe, gas pitcher two registrates pipeline two and measuring apparatu fixed connection through intake pipe two, one side of measuring apparatu is provided with the gas vent, the top of measuring apparatu is provided with the handle, the front end of measuring apparatu is provided with the gas appearance.

Preferably, the cross sectional shape of the rivet is I-shaped, the rivet is in sliding connection with the support rod, the rivet is in sliding connection with the lug piece III, the longitudinal section of the support rod is the same as that of the mounting groove, and the longitudinal section of the support rod is the same as that of the front end of the fixture block.

Preferably, the cross section of the second fixture block is L-shaped, the cross section of the first fixture block is in a shape of a Chinese character 'men', the top end of the second fixture block is connected with the bottom end of the first fixture block, the width of the top end of the second fixture block is the same as the width of the inner surface of the first fixture block, the width of the bottom end of the second fixture block is the same as the width of the second lug, and the length of the bottom end of the second fixture block is the same as the length of the second lug.

Preferably, the top end of the second lug is provided with a through hole, the cross section of the through hole is the same as that of the slide rod, the slide rod is connected with the second lug in a sliding manner, and the positioning plate is connected with the outer surface of the workbench in a sliding manner.

Preferably, the specification of the fixed block is consistent with that of the ejector block, the specification of the first sliding block is consistent with that of the second sliding block, and the specification of the second limiting block is consistent with that of the first limiting block.

Preferably, the width of the first sliding block is the same as that of the first sliding groove, the height of the first sliding block is the same as that of the fastening bolt, the width of the second limiting block is the same as that of the first sliding block, the length of the second limiting block is twice that of the first sliding block, the first moving block is connected with the bottom plate in a sliding mode, and the top block is connected with the bottom plate in a sliding mode.

Preferably, a shaft section of the slide rail is T-shaped, the shaft section of the first slide rail is the same as that of the second lug, the longitudinal section of the first slide rail is annular, the width of the second slide rail is the same as that of the third slide groove, four grooves are formed in the first slide rail, and the four grooves are arranged around the axis of the pressing block at equal intervals.

Compared with the prior art, the invention has the beneficial effects that:

(1) the supporting rod which is arranged on the surface of the gas tank support and is connected with the lug plates in a three-phase mode is convenient for the recovery of the supporting rod, the position between the gas tank support and the workbench is convenient to fix by arranging the first clamping block and the second clamping block which are arranged at the other end of the supporting rod, and the spring arranged between the second clamping block and the second lug plate is convenient to push the second clamping block to move upwards.

(2) The fixing block, the first moving block and the top block which are arranged at the top end of the bottom plate are designed to facilitate fixing of the first gas tank and the second gas tank, the first sliding block and the second sliding block which are arranged at the bottom end of the first moving block are designed to facilitate sliding of the first moving block, the second sliding block and the first limiting block which are arranged at the bottom end of the top block are designed to facilitate sliding of the top block, and the first lug piece and the second gas tank are designed to facilitate fixing of the first gas tank and the second gas tank through the first lug piece which is arranged at the top end of.

(3) The rotating block arranged on the outer surface of the pipeline and the moving block II in threaded connection with the rotating block are designed, so that the rotating block can push the moving block II to move, and the pressing block arranged on the outer surface of the pipeline can fix the air inlet pipe II conveniently, so that the pipeline II is connected with the air inlet pipe II.

Drawings

FIG. 1 is a schematic perspective view of a calibrator according to the present invention;

FIG. 2 is a schematic view of the calibrator;

FIG. 3 is a schematic view of a rotating cross-section of the calibrator in accordance with the present invention;

FIG. 4 is a schematic top view of the calibrator of the present invention;

FIG. 5 is a schematic cross-sectional view of the calibrator of the present invention;

FIG. 6 is a schematic cross-sectional view taken at A in FIG. 5 according to the present invention;

in the figure: 1. a universal wheel; 2. a base plate; 3. a fixed block; 4. moving a first block; 5. a top block; 6. a first gas tank; 7. a second gas tank; 8. a gas tank holder; 9. a first pipeline; 10. a second pipeline; 11. a first air inlet pipe; 12. a second air inlet pipe; 13. an exhaust port; 14. a measuring instrument; 15. a handle; 16. a gas meter; 17. a work table; 18. a first clamping block; 19. a second clamping block; 20. mounting grooves; 21. a support bar; 22. a first limiting block; 23. a first lug; 24. fastening a bolt; 25. a slide bar; 26. a second lug plate; 27. a spring; 28. positioning a plate; 29. riveting; 30. a third lug piece; 31. a first sliding block; 32. a second limiting block; 33. a second sliding block; 34. a first sliding chute; 35. rotating the block; 36. a second chute; 37. a first slide rail; 38. a third chute; 39. a second slide rail; 40. a second moving block; 41. briquetting; 42. and (4) a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a gas flow calibrator suitable for multiple environments comprises a bottom plate 2, a gas tank support 8, a workbench 17, a fixing mechanism arranged on the outer surface of the gas tank support 8, a fastening mechanism arranged on the top end of the bottom plate 2 and a connecting mechanism arranged on the top end of the workbench 17, wherein the fixing mechanism comprises a third lug 30, the third lug 30 is arranged on the edge of the outer surface of one side of the gas tank support 8, a rivet 29 is sleeved on the inner surface of the third lug 30, a support rod 21 is arranged on the outer surface of the other side of the rivet 29, the support rod 21 is movably connected with the third lug 30 by sleeving the support rod 21 and the third lug 30, an installation groove 20 is formed in one side of the outer surface of the workbench 17, the support rod 21 is connected with the workbench 17 by sleeving the support rod 21 through the installation groove 20, a first fixture block 18 is arranged at, a second clamping block 19 is fixedly connected to the outer surface of the workbench 17, a fastening bolt 24 is arranged at the bottom end of the second clamping block 19, a positioning plate 28 is connected to the top end, penetrating through the second lug 26, of the sliding rod 25, a spring 27 is sleeved on the outer surface of the bottom end of the sliding rod 25, the spring 27 is fixedly connected with the second lug 26 and the second clamping block 19, and the sliding rod 25 is movably connected with the first clamping block 18 through the second clamping block 19 clamped by the first clamping block 18.

In order to fix the positions of the first gas tank 6 and the second gas tank 7 conveniently, in the embodiment, preferably, the fastening mechanism comprises a fixed block 3, the fixed block 3 is arranged on the top end surface of one side of the bottom plate 2, the first gas tank 6 is arranged at the top end of the bottom plate 2, a first sliding groove 34 is formed in the top end of the bottom plate 2, a first moving block 4 is fixedly connected to the top end of the bottom plate 2, a first lug 23 is arranged at the top end of the other side of the bottom plate 2, the first moving block 4 is movably connected with the fixed block 3 through a first rear end clamping gas tank 6 of the first moving block 4, the first moving block 5 is movably connected with the first moving block 4 through a second rear end clamping gas tank 7 of the first moving block 5, a first sliding block 31 is arranged at the bottom end of the first sliding block 31, a second limiting block 32 is arranged at the bottom end of the first sliding, the top block 5 is movably connected with the bottom plate 2 through the sliding block II 33 and the limiting block I22, the bottom plate 2 is clamped with the bottom plate 2, the front end surface of the top block 5 is fixedly connected with a fastening bolt 24, the outer surface of the fastening bolt 24 is provided with an external thread, the inner wall of the lug I23 is provided with an internal thread, and the lug I23 is screwed with the internal thread of the inner wall of the lug I23 through the external thread of the outer surface of the fastening bolt 24 and is fixedly connected with the top block.

In order to facilitate the connection between the second pipeline 10 and the second air inlet pipe 12, in this embodiment, preferably, the connection mechanism includes a measuring instrument 14, the measuring instrument 14 is disposed at the top end of the workbench 17, one side of the measuring instrument 14 is provided with a second air inlet pipe 12, the second air inlet pipe 12 is sleeved with the second pipeline 10, the outer surface of the second pipeline 10 is provided with a pressing block 41, the second pipeline 10 is fixedly connected with the second air inlet pipe 12 by the pressing block 41 clamping the second air inlet pipe 12, the outer surface of the pressing block 41 is provided with a groove 42, a rotating block 35 is disposed on the outer surface of the second pipeline 10, the outer surface of one side of the second pipeline 10 is provided with a first sliding rail 37, one side of the rotating block 35 opposite to the outer surface of the second pipeline 10 is provided with a second sliding groove 36, the rotating block 35 is connected with the second pipeline 10 by the sliding groove 36, one side of the second moving block 40 opposite to the second slide rail 39 is provided with a third slide groove 38, and the second moving block 40 is connected with the second pipeline 10 by the second slide rail 39 clamped by the third slide groove 38.

In order to facilitate the operation of the device, in this embodiment, preferably, the bottom end of the gas tank support 8 is provided with the bottom plate 2, the bottom end of the gas tank support 8 is provided with the universal wheel 1, the top end of the gas tank one 6 is provided with a pipeline one 9, the top end of the gas tank two 7 is provided with a pipeline two 10, one side of the measuring instrument 14 is provided with a gas inlet pipe one 11, the gas tank one 6 is fixedly connected with the measuring instrument 14 through the gas inlet pipe one 11 which is sleeved with the pipeline one 9, the gas tank two 7 is fixedly connected with the measuring instrument 14 through the gas inlet pipe two 12 which is sleeved with the pipeline two 10, one side of the measuring instrument 14 is provided with the gas outlet 13.

In order to fix the support rod 21 and the third tab 30 together, in this embodiment, preferably, the cross-sectional shape of the rivet 29 is "i" shaped, the rivet 29 is slidably connected with the support rod 21, the rivet 29 is slidably connected with the third tab 30, the longitudinal cross-sectional dimension of the support rod 21 is the same as the longitudinal cross-sectional dimension of the mounting groove 20, and the longitudinal cross-sectional dimension of the support rod 21 is the same as the longitudinal cross-sectional dimension of the front end of the first fixture block 18.

In order to fix the supporting rod 21, in the present embodiment, preferably, the cross-sectional shape of the second clamping block 19 is L-shaped, the cross-sectional shape of the first clamping block 18 is "door" -shaped, the top end of the second clamping block 19 is connected to the bottom end of the first clamping block 18, the width of the top end of the second clamping block 19 is the same as the width of the inner surface of the first clamping block 18, the width of the bottom end of the second clamping block 19 is the same as the width of the second tab 26, and the length of the bottom end of the second clamping block 19 is the same as the.

In order to facilitate the sliding and fixing of the sliding rod 25, in this embodiment, preferably, the top end of the second lug 26 is provided with a through hole, the cross-sectional dimension of the through hole is the same as the cross-sectional dimension of the sliding rod 25, the sliding rod 25 is slidably connected with the second lug 26, and the positioning plate 28 is slidably connected with the outer surface of the workbench 17.

In order to facilitate installation of the device, in this embodiment, preferably, the specification of the fixed block 3 is consistent with the specification of the top block 5, the specification of the first slider 31 is consistent with the specification of the second slider 33, and the specification of the second stopper 32 is consistent with the specification of the first stopper 22.

In order to facilitate the movement of the moving block I4 and the top block 5, in this embodiment, preferably, the width of the sliding block I31 is the same as that of the sliding groove I34, the height of the sliding block I31 is the same as that of the fastening bolt 24, the width of the limiting block II 32 is the same as that of the sliding block I31, the length of the limiting block II 32 is twice as long as that of the sliding block I31, the moving block I4 is slidably connected with the bottom plate 2, and the top block 5 is slidably connected with the bottom plate 2.

In order to facilitate the normal operation of the connecting mechanism, in this embodiment, preferably, the first sliding rail 37 has a T-shaped axial cross-section, the axial cross-section of the first sliding rail 37 has the same size as that of the second tab 26, the longitudinal cross-section of the first sliding rail 37 has an annular shape, the width of the second sliding rail 39 is the same as that of the third sliding groove 38, four grooves 42 are provided, and the four grooves 42 are equidistantly arranged around the axis of the pressing block 41.

The working principle and the using process of the invention are as follows: when the device is installed, the supporting rod 21 is lifted, the supporting rod 21 rotates around the axis of the rivet 29, the supporting rod 21 is placed in the installation groove 20, the positioning plate 28 is pulled, the movement of the positioning plate 28 drives the movement of the sliding rod 25, the movement of the sliding rod 25 drives the movement of the second clamping block 19, the spring 27 of the second clamping block 19 is extruded between the second clamping block 19 and the second lug 26, the air tank support 8 is pushed, the supporting rod 21 penetrates through the installation groove 20, the positioning plate 28 is loosened, the spring 27 in a compressed state pushes the second clamping block 19 to be connected with the first clamping block 18, and therefore the position between the air tank support 8 and the workbench 17 is fixed; when the first gas tank 6 and the second gas tank 7 are placed. Connecting a first gas tank 6 with one end of a fixed block 3, moving a first moving block 4 to connect the rear end of the first moving block 4 with the other side of the first gas tank 6, placing a second gas tank 7 on the top end of a bottom plate 2, moving the second gas tank 7 to connect one side surface of the second gas tank 7 with the front end of the first moving block 4, moving a top block 5 to connect the rear end of the top block 5 with the other side surface of the second gas tank 7, rotating a fastening bolt 24, driving the fastening bolt 24 to move towards the inside of a gas tank bracket 8 by the rotation of the fastening bolt 24, so that the fastening bolt 24 pushes the top block 5 to move, the top block 5 clamps the gas tank II 7 between the top block 5 and the moving block I4, the moving block I4 clamps the gas tank I6 between the fixed block 3 and the moving block I4, therefore, the fixation of the first gas tank 6 and the second gas tank 7 is more stable, and the first gas tank 6 and the second gas tank 7 are convenient to mount stably; when the second pipeline 10 is connected with the second air inlet pipe 12, the second air inlet pipe 12 is sleeved on the outer surface of the second pipeline 10, the rotating block 35 is rotated, and due to the fact that the third sliding groove 38 is in sliding connection with the second sliding rail 39, the rotating block 35 rotates to drive the second moving block 40 to move, the second moving block 40 extrudes the pressing block 41, the pressing block 41 tightly clamps the second air inlet pipe 12, the position of the second pipeline 10 and the position of the second air inlet pipe 12 are fixed, and therefore the second pipeline 10 is conveniently connected with the second air inlet pipe 12.

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