阅读说明：本技术 一种多功能气相色谱仪 (Multifunctional gas chromatograph ) 是由 刘勤 于 2020-11-25 设计创作，主要内容包括：本发明公开了一种多功能气相色谱仪,包括气相色谱仪主体,所述气相色谱仪主体的前侧设有观察窗,所述气相色谱仪主体的上表面固定连接有进气装置,所述进气装置包括管一,所述管一的下表面与气相色谱仪主体的上表面固定连接,所述管一的内壁固定连接有单向阀一和单向阀二,所述管一上单向阀一和单向阀二之间的空间区域为F区,所述F区的上方开设有通孔并通过通孔密封固连有套筒,所述套筒的内壁滑动连接有活塞。本发明,通过上述结构之间的配合使用,解决了在实际使用过程中,由于传统气相色谱仪的进气量难以进行适应性的调控,而且所进入的空气中的杂质也容易影响气相色谱仪的检测精度,给使用带来不便的问题。(The invention discloses a multifunctional gas chromatograph, which comprises a gas chromatograph main body, wherein an observation window is arranged on the front side of the gas chromatograph main body, an air inlet device is fixedly connected to the upper surface of the gas chromatograph main body, the air inlet device comprises a first pipe, the lower surface of the first pipe is fixedly connected with the upper surface of the gas chromatograph main body, the inner wall of the first pipe is fixedly connected with a first check valve and a second check valve, a space area between the first check valve and the second check valve on the first pipe is an F area, a through hole is formed above the F area, a sleeve is fixedly connected with the F area in a sealing mode through the through hole, and a piston is connected to the inner wall of the sleeve in a sliding mode. The invention solves the problems that the air inflow of the traditional gas chromatograph is difficult to be adjusted and controlled adaptively and impurities in the entered air easily influence the detection precision of the gas chromatograph and bring inconvenience to the use in the actual use process by the matching use of the structures.)

1. The utility model provides a multi-functional gas chromatograph, includes gas chromatograph main part (1), the front side of gas chromatograph main part (1) is equipped with observation window (2), its characterized in that: the upper surface of the gas chromatograph main body (1) is fixedly connected with an air inlet device (3);

the gas inlet device (3) comprises a first pipe (4), the lower surface of the first pipe (4) is fixedly connected with the upper surface of the gas chromatograph main body (1), a first check valve (5) and a second check valve (6) are fixedly connected with the inner wall of the first pipe (4), a space area between the first check valve (5) and the second check valve (6) on the first pipe (4) is an F area, a through hole is formed above the F area and fixedly connected with a sleeve (7) in a sealing manner through the through hole, a piston (8) is slidably connected with the inner wall of the sleeve (7), a first rod (9) is fixedly connected with the upper surface of the piston (8), a through hole for the first rod (9) to slide up and down is formed in the upper surface of the sleeve (7), a pressing plate (10) is fixedly connected with the top of the first rod (9), a surface pressure spring (11) of the first rod (9), and opposite surfaces of the two ends of the pressure spring (11) are fixedly connected with the pressing plate (10) and the, the right-hand member fixedly connected with pipe two (12) of pipe (4), the top of sleeve (7) is equipped with casing (13), pipe two (12) run through casing (13) and with casing (13) fixed connection, the left side that is close to the bottom on casing (13) has been seted up the through-hole and has been linked firmly pipe three (14) through the through-hole is sealed, the one end of keeping away from casing (13) on pipe three (14) links firmly with the air inlet on gas chromatograph main part (1) is sealed, the inner wall of casing (13) is equipped with auxiliary device (15).

2. The multifunctional gas chromatograph of claim 1, wherein: the auxiliary device (15) comprises a rotating shaft (16) which limits the rotation in the shell (13), the surface of the rotating shaft (16) is fixedly connected with a stirring plate (17), the surfaces of the rotating shaft (16) close to the two ends are fixedly connected with gears (18), the rear side of the gear (18) is engaged with a toothed plate (19), the bottom of the toothed plate (19) is fixedly connected with a transmission bar (20), the bottom of the shell (13) is provided with a through hole and is fixedly connected with a sleeve (21) through the through hole, a second rod (22) is arranged in the sleeve (21), the rear side of the second rod (22) close to the top is fixedly connected with the front side of the transmission bar (20), the bottom of the second rod (22) is fixedly connected with the upper surface of the pressure plate (10), and a piston ring (23) is fixedly sleeved on the surface of the second rod (22), and the side surface of the piston ring (23) is in sliding connection with the inner wall of the sleeve (21).

3. The multifunctional gas chromatograph of claim 2, wherein: the surface of the stirring plate (17) is provided with a through hole and is fixedly connected with a first filter screen (24) through the through hole.

4. The multifunctional gas chromatograph of claim 3, wherein: the number of the first filter screens (24) on the stirring plate (17) is not less than six.

5. The multifunctional gas chromatograph of claim 1, wherein: the bottom of the inner wall of the shell (13) is fixedly connected with two positioning rods (25), and the surfaces of the positioning rods (25) penetrate through the transmission bars (20) and are in sliding connection with the transmission bars (20).

6. The multifunctional gas chromatograph of claim 1, wherein: and a second filter screen (26) is fixedly connected to the inner wall of the first pipe (4) close to the left end.

7. The multifunctional gas chromatograph of claim 1, wherein: edges on the pressing plate (10) are all subjected to arc transition treatment, and the upper surface of the pressing plate is provided with anti-skid grains.

Technical Field

The invention relates to the technical field of gas chromatograph equipment, in particular to a multifunctional gas chromatograph.

Background

The gas chromatograph is a chromatographic analysis device using gas as a mobile phase. The principle is mainly to realize the separation of the mixture by utilizing the differences of the boiling point, the polarity and the adsorption property of the substances. After being gasified in the gasification chamber, the sample to be analyzed is carried into the chromatographic column by inert gas (i.e. carrier gas, also called mobile phase), the column contains liquid or solid stationary phase, and each component in the sample tends to form distribution or adsorption equilibrium between the mobile phase and the stationary phase.

But the single of current gas chromatograph function comparison, can not examine the side to multiple gas, and examine the precision of side lower, efficiency is also slow, for this reason, people propose a neotype multi-functional gas chromatograph, like the neotype multi-functional gas chromatograph that chinese patent CN208805493U disclosed, including chromatograph and display, the display is fixed to be set up at chromatograph side surface, the fixed printer that is provided with in display bottom, and the printer passes through the wire and links to each other with the display electrical property, fixed surface is provided with the air inlet on the chromatograph, air inlet bottom fixedly connected with chromatographic column. The utility model discloses pour into the chromatographic column in proper order with the gas that stores in the gas holder, No. two gas holders and No. three gas holders to make things convenient for the chromatograph to examine different gases, can effectively enlarge the detection range of chromatograph, chromatographic column bottom fixedly connected with vibrator produces the vibration through the vibrator, makes the mixing velocity between the gas accelerate, thereby accelerates the detection speed to the gas, and can reduce the transmission of vibrations through the shock pad, thereby play the function of shock attenuation, it is more convenient to use, is fit for being widely promoted and used;

however, in the actual use process, the air intake of the conventional gas chromatograph is difficult to be adaptively controlled, and impurities in the entering air easily influence the detection accuracy of the gas chromatograph, which brings inconvenience to the use.

Disclosure of Invention

The invention aims to provide a multifunctional gas chromatograph, which improves the traditional device and solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a multi-functional gas chromatograph, includes the gas chromatograph main part, the front side of gas chromatograph main part is equipped with the observation window, the last fixed surface of gas chromatograph main part is connected with air inlet unit.

The air inlet device comprises a first pipe, the lower surface of the first pipe is fixedly connected with the upper surface of a gas chromatograph main body, the inner wall of the first pipe is fixedly connected with a first check valve and a second check valve, the space area between the first check valve and the second check valve on the first pipe is an F area, a through hole is formed above the F area and fixedly connected with a sleeve through the through hole in a sealing manner, the inner wall of the sleeve is connected with a piston in a sliding manner, the upper surface of the piston is fixedly connected with a first rod, the upper surface of the sleeve is provided with a through hole for the first rod to slide up and down, the top of the first rod is fixedly connected with a pressing plate, the surface of the first rod is sleeved with a pressure spring, two ends of the pressure spring are fixedly connected with the opposite surfaces of the pressing plate and the sleeve, the right end of the first pipe is fixedly connected with a second pipe, a shell is arranged above the sleeve, the second pipe penetrates through the shell and is fixedly, and one end of the third pipe, which is far away from the shell, is fixedly connected with an air inlet on the gas chromatograph main body in a sealing manner, and an auxiliary device is arranged on the inner wall of the shell.

Preferably, auxiliary device includes spacing pivoted pivot in the casing, the fixed surface of pivot is connected with stirs the board, be close to the fixed surface at both ends in the pivot and be connected with the gear, the rear side meshing of gear has the pinion rack, the bottom fixedly connected with transmission strip of pinion rack, the through-hole has been seted up and through-hole fixedly connected with sleeve pipe to the bottom of casing, the intraductal pole two that is equipped with of cover, the rear side that is close to the top on the pole two is connected with the front side fixed connection of transmission strip, the bottom of pole two is connected with the last fixed surface of clamp plate, the fixed surface cover of pole two has the piston ring, the side and the sheathed tube inner wall sliding connection of piston ring.

Preferably, the surface of the stirring plate is provided with a through hole and is fixedly connected with a first filter screen through the through hole.

Preferably, the number of the first filter screens on the stirring plate is not less than six.

Preferably, the bottom of the inner wall of the shell is fixedly connected with two positioning rods, and the surfaces of the positioning rods penetrate through the transmission bars and are in sliding connection with the transmission bars.

Preferably, the inner wall of the first pipe close to the left end is fixedly connected with a second filter screen.

Preferably, the edges on the pressing plate are subjected to arc transition treatment, and the upper surface of the pressing plate is provided with anti-skid grains.

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

the invention can quantitatively control the air sucked by the gas chromatograph, and can perform operations such as filtering, uniformly mixing and the like on the sucked air so as to improve the detection precision by arranging the air inlet device.

Secondly, the pressing plate is pressed on the pressing plate by hand, the pressing plate drives the first rod to move downwards after overcoming the elastic action of the pressure spring, then the pressing of the pressing plate is released, and the pressing plate drives the first rod and the piston to move upwards under the elastic action of the pressure spring;

when the piston moves downwards, the volume of the area F is reduced, the pressure of air in the area F is increased, high-pressure air enters the pipe II through the check valve II, when the piston moves upwards, the volume of the area F is increased, the opening pressure in the area F is further reduced, the air pressure at the air source to be detected at the left end of the pipe I is relatively large, high-pressure air enters the area F through the check valve I, then along with the downward movement of the piston again, the air in the area F is extruded into the pipe II through the check valve II again, and the rod I and the piston are driven to lift through the pressing plate, so that the air at the air source is continuously sucked;

finally, the clean gas to be detected is sent to the gas inlet on the gas chromatograph main body through the pipe II, the shell and the pipe III, and gas phase monitoring is carried out through the gas chromatograph main body;

the secondary filtration and uniform mixing operation of the gas to be detected in the shell are realized through the auxiliary device, so that the detection precision is further improved;

thirdly, the invention solves the problems that the air inflow of the traditional gas chromatograph is difficult to be adjusted and controlled adaptively, and the detection precision of the gas chromatograph is easily influenced by impurities in the entering air, so that the use is inconvenient in the actual use process through the matching use of the structures.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front cross-sectional view of a second tube of the present invention;

fig. 3 is a front cross-sectional view of the housing of the present invention.

In the figure: the device comprises a gas chromatograph main body, a gas chromatograph 2-an observation window, a gas inlet device 3-a 4-tube I, a check valve 5I, a check valve 6 II, a sleeve 7, a piston 8, a rod I9, a pressure plate 10, a pressure spring 11, a tube II 12, a shell 13, a tube III 14, an auxiliary device 15, a rotating shaft 16, a stirring plate 17, a gear 18, a toothed plate 19, a transmission bar 20, a sleeve 21, a rod II 22, a piston ring 23, a filter screen I24, a positioning rod 25 and a filter screen II 26.

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 to 3, the present invention provides a technical solution: a multifunctional gas chromatograph comprises a gas chromatograph main body 1, wherein the gas chromatograph main body 1 comprises a chromatograph and a display, the display is fixedly arranged on one side surface of the chromatograph, a printer is fixedly arranged at the bottom of the display and is electrically connected with the display through a lead, an air inlet is fixedly arranged on the upper surface of the chromatograph, and a chromatographic column is fixedly connected to the bottom of the air inlet; the front side of the gas chromatograph main body 1 is provided with an observation window 2, the observation window 2 observes a chromatographic column in the gas chromatograph main body 1, the molecular content in gas is detected through the chromatographic column, and the detected data can be displayed through a display, so that a user can conveniently read the data, and the data can be printed through an RPAX printer, so that the use is more convenient; the upper surface of the gas chromatograph main body 1 is fixedly connected with the air inlet device 3, and the air inlet device 3 can be used for quantitatively controlling the air sucked by the gas chromatograph and filtering, uniformly mixing and other operations on the sucked air, so that the detection precision is improved.

The air inlet device 3 comprises a first pipe 4, a second filter screen 26 is fixedly connected to the inner wall of the first pipe 4 close to the left end, and preliminary filtering operation can be performed on sucked air through the arrangement of the second filter screen 26 on the inner wall of the first pipe 4;

the lower surface of a first pipe 4 is fixedly connected with the upper surface of a gas chromatograph main body 1, the inner wall of the first pipe 4 is fixedly connected with a first check valve 5 and a second check valve 6, the space area between the first check valve 5 and the second check valve 6 on the first pipe 4 is an F area, the first check valve 5 and the second check valve 6 are medical microminiature diaphragm one-way air valves, the model is DCV1601DVN, a through hole is formed above the F area and fixedly connected with a sleeve 7 through the through hole in a sealing manner, the inner wall of the sleeve 7 is slidably connected with a piston 8, the upper surface of the piston 8 is fixedly connected with a first rod 9, the upper surface of the sleeve 7 is provided with a through hole for the first rod 9 to slide up and down, the top of the first rod 9 is fixedly connected with a pressing plate 10, edges on the pressing plate 10 are all subjected to arc transition treatment, anti-slip veins are formed on the upper surface of the pressing plate 10, and, the hand is indented, and the anti-slip lines on the hand can avoid slipping during use;

pressing the pressing plate 10 by a hand, then enabling the pressing plate 10 to drive the first rod 9 to move downwards after overcoming the elastic action of the pressure spring 11, then releasing the pressing of the pressing plate 10, and enabling the pressing plate 10 to drive the first rod 9 and the piston 8 to move upwards under the elastic action of the pressure spring 11;

when the piston 8 moves downwards, the volume of the area F is reduced, the pressure of air in the area F is increased, high-pressure air can enter the pipe II 12 through the check valve II 6, when the piston 8 moves upwards, the volume of the area F is increased, the opening pressure in the area F is further reduced, the air pressure of an air source to be detected at the left end of the pipe I4 is relatively large, high-pressure air can enter the area F through the check valve I5, then along with the downward movement of the piston 8 again, the air in the area F can be extruded into the pipe II 12 through the check valve II 6 again, the rod I9 and the piston 8 are driven to lift through the pressure plate 10, and the air at the air source is continuously sucked;

the surface of the first rod 9 is sleeved with a pressure spring 11, two ends of the pressure spring 11 are fixedly connected with opposite surfaces of a pressure plate 10 and a sleeve 7, the right end of the first pipe 4 is fixedly connected with a second pipe 12, a shell 13 is arranged above the sleeve 7, the second pipe 12 penetrates through the shell 13 and is fixedly connected with the shell 13, a third pipe 14 is arranged on the left side, close to the bottom, of the shell 13 and is fixedly connected with the left side in a sealing mode through a through hole, and finally clean gas to be detected is sent to an air inlet in the gas chromatograph main body 1 through the second pipe 12, the shell 13 and the third pipe 14, and gas monitoring is carried;

one end of the third pipe 14, which is far away from the shell 13, is fixedly connected with the gas inlet on the gas chromatograph main body 1 in a sealing manner, the inner wall of the shell 13 is provided with an auxiliary device 15, secondary filtering and uniform mixing operation of the gas to be detected in the shell 13 are realized through the auxiliary device 15, and the detection precision is further improved;

the auxiliary device 15 comprises a rotating shaft 16 which is limited to rotate in the shell 13, the surface of the rotating shaft 16 is fixedly connected with a stirring plate 17, the surface of the rotating shaft 16 close to two ends is fixedly connected with a gear 18, the rear side of the gear 18 is meshed with a toothed plate 19, the bottom of the toothed plate 19 is fixedly connected with a transmission strip 20, the bottom of the shell 13 is provided with a through hole and is fixedly connected with a sleeve 21 through the through hole, a second rod 22 is arranged in the sleeve 21, the rear side of the second rod 22 close to the top is fixedly connected with the front side of the transmission strip 20, the bottom of the second rod 22 is fixedly connected with the upper surface of the pressing plate 10, the surface of the second rod 22 is fixedly sleeved with a piston ring 23, and the gas in the shell 13 is ensured not to be leaked;

the side surface of the piston ring 23 is connected with the inner wall of the sleeve 21 in a sliding manner, the lifting of the second driving rod 22 is driven by the lifting of the pressing plate 10, so that the lifting of the driving strip 20 is realized, when the toothed plate 19 is lifted, the gear 18 drives the rotating shaft 16 to perform reciprocating limiting rotation in the shell 13, the rotation of the rotating shaft 16 drives the stirring plate 17 to rotate, when the shell 13 rotates in the shell 13, the air in the shell 13 is stirred, and the uniform mixing of the air in the shell 13 is realized;

a through hole is formed in the surface of the stirring plate 17, a first filter screen 24 is fixedly connected with the through hole, the first filter screen 24 is driven to rotate in the shell 13 through the rotation of the stirring plate 17, and then impurities in the air in the shell 13 are filtered and absorbed again, so that the detection precision is further ensured;

the number of the first filter screens 24 on the stirring plate 17 is not less than six, and the number of the first filter screens 24 on the stirring plate 17 is not less than six, so that the filtering efficiency can be further improved;

the bottom of the inner wall of the shell 13 is fixedly connected with two positioning rods 25, the surfaces of the positioning rods 25 penetrate through the transmission bars 20 and are in sliding connection with the transmission bars 20, and the lifting of the transmission bars 20 in the shell 13 can be further limited by the arrangement of the two positioning rods 25 on the inner wall of the shell 13, so that the stability of the lifting process of the transmission bars 20 in the shell 13 is ensured;

the working principle is as follows: when the multifunctional gas chromatograph is used, the air intake device 3 is arranged, so that the air sucked by the gas chromatograph can be quantitatively controlled, and the operations of filtering, uniformly mixing and the like can be performed on the sucked air, so that the detection precision is improved; pressing the pressing plate 10 by a hand, then enabling the pressing plate 10 to drive the first rod 9 to move downwards after overcoming the elastic action of the pressure spring 11, then releasing the pressing of the pressing plate 10, and enabling the pressing plate 10 to drive the first rod 9 and the piston 8 to move upwards under the elastic action of the pressure spring 11; when the piston 8 moves downwards, the volume of the area F is reduced, the pressure of air in the area F is increased, high-pressure air can enter the pipe II 12 through the check valve II 6, when the piston 8 moves upwards, the volume of the area F is increased, the opening pressure in the area F is further reduced, the air pressure of an air source to be detected at the left end of the pipe I4 is relatively large, high-pressure air can enter the area F through the check valve I5, then along with the downward movement of the piston 8 again, the air in the area F can be extruded into the pipe II 12 through the check valve II 6 again, the rod I9 and the piston 8 are driven to lift through the pressure plate 10, and the air at the air source is continuously sucked; finally, the clean gas to be detected is sent to the gas inlet on the gas chromatograph main body 1 through the second pipe 12, the shell 13 and the third pipe 14, and gas phase monitoring is carried out through the gas chromatograph main body 1; the secondary filtration and uniform mixing operation of the gas to be detected in the shell 13 are realized through the auxiliary device 15, so that the detection precision is further improved; through the cooperation use between the above-mentioned structure, solved in the in-service use process, because traditional gas chromatograph's air input is difficult to carry out the regulation and control of adaptability, impurity in the air that gets into moreover also influences gas chromatograph's detection precision easily, gives the problem that the use is inconvenient.

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.