CN214310331U

CN214310331U - Gas chromatograph connecting device convenient to butt joint

Info

Publication number: CN214310331U
Application number: CN202120182831.0U
Authority: CN
Inventors: 郭海霞; 池连学; 张禧庆; 马金秀; 张岩; 王丹
Original assignee: Shandong Jienuo Testing Service Co ltd
Current assignee: Shandong Jienuo Testing Service Co ltd
Priority date: 2021-01-23
Filing date: 2021-01-23
Publication date: 2021-09-28
Anticipated expiration: 2031-01-23

Abstract

The utility model relates to a gas chromatograph connects technical field, specifically is a gas chromatograph connecting device of convenient butt joint, including gas chromatograph, gas chromatograph upper end inner chamber is provided with the air inlet, and gas chromatograph's upper end is provided with the butt joint case, and the upper end of air inlet is provided with a pair of side direction runner of bilateral symmetry, and beneficial effect is: the utility model has the advantages that the piston plate with the difference of upper and lower pressure is arranged, so that the content of air in the air inlet cavity is reduced by utilizing the boosting rise of the piston plate and the inserted column, the purity of the detection gas is improved, the error is reduced, and meanwhile, the matching of the lifting position is realized by matching with a foldable pipeline; through the extrusion of electronic telescopic link to the piston plate, realize inside gas pressure to the extrusion of clamp plate for the clamp plate descends, thereby communicates with the air inlet, reaches the purpose of admitting air, cooperates the reduction of reseing and inside atmospheric pressure of spring simultaneously, thereby realizes timely closure, avoids gaseous backward flow, has improved the security that detects the admission greatly.

Description

Gas chromatograph connecting device convenient to butt joint

Technical Field

The utility model relates to a gas chromatograph connects technical field, specifically is a gas chromatograph connecting device of convenient butt joint.

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.

The existing gas chromatograph lacks a butt joint device at an air inlet, and is easy to cause mixing with air in the air inlet process, so that the detection precision is reduced, the detection error value is increased, the connection between the gas chromatograph and the air inlet device is inconvenient, gas leakage is easy to cause, and the detection danger is increased.

Therefore, the gas chromatograph connecting device convenient to butt joint is provided, and the problems of air inlet safety and detection precision are solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gas chromatograph connecting device of convenient butt joint to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a gas chromatograph connecting device convenient for butt joint comprises a gas chromatograph, wherein an air inlet is arranged in an inner cavity at the upper end of the gas chromatograph, a butt joint box is arranged at the upper end of the gas chromatograph, a pair of lateral flow passages which are bilaterally symmetrical are arranged at the upper end of the air inlet, an adjusting inner cavity is vertically arranged at the upper end of the lateral flow passages, a pressing plate is slidably arranged in the adjusting inner cavity, a stand column is arranged at the lower end of the pressing plate, a spring is arranged on the stand column, a lower sleeve is arranged at the lower end of the butt joint box, a piston plate is slidably arranged in the inner cavity of the butt joint box, a pair of supports which are bilaterally symmetrical are vertically welded at the upper end of the butt joint box, an electromagnetic valve is fixedly arranged in the middle of the upper end face of the butt joint box, the lower sleeve at the lower end of the butt joint box is hermetically inserted in the inner cavity at the upper end of the adjusting inner cavity, a pair of guide rods which are bilaterally symmetrical are vertically welded at the upper end of the piston plate, and an insertion column is arranged at the lower end of the piston plate, the inserting column is slidably inserted into the lower sleeve, an air inlet head is arranged on the lower end face of the inserting column, a folding connecting pipe is connected to the upper end of the inserting column, an electric telescopic rod is vertically and downwards installed at the upper end of the support, and a pressing ball is arranged at the lower end of the electric telescopic rod.

Preferably, the lower end of the adjusting inner cavity is provided with a lifting groove, the upper end of the pressure plate is opposite to the air inlet head, the lower end of the upright post is inserted in the lifting groove in a sliding mode, and the upper end of the lifting groove is communicated with the adjusting inner cavity.

Preferably, the spring is sleeved on the outer wall of the upper end of the upright post, the upper end of the spring abuts against the lower end face of the pressing plate, and the lower end of the spring abuts against the inner wall of the lower end of the adjusting inner cavity.

Preferably, a pair of through holes which are bilaterally symmetrical are formed in the upper end face of the butt joint box, the guide rod is inserted in the through holes in a sliding mode, and the upper end of the guide rod is opposite to the pressing ball.

Preferably, the upper end of the electromagnetic valve is connected with an air inlet pipe, the lower end of the electromagnetic valve is communicated with a folding connecting pipe, and the lower end of the folding connecting pipe is communicated with an air inlet head.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model has the advantages that the piston plate with the difference of upper and lower pressure is arranged, so that the content of air in the air inlet cavity is reduced by utilizing the boosting rise of the piston plate and the inserted column, the purity of the detection gas is improved, the error is reduced, and meanwhile, the matching of the lifting position is realized by matching with a foldable pipeline;

2. the utility model discloses an extrusion of electronic expansion link to the piston plate realizes inside gas pressure to the extrusion of clamp plate for the clamp plate descends, thereby with the air inlet intercommunication, reaches the purpose of admitting air, cooperates the reduction of reseing and inside atmospheric pressure of spring simultaneously, thereby realizes timely closure, avoids gaseous backward flow, has improved the security that detects the admission greatly.

Drawings

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

fig. 2 is a schematic view of the structure of the docking box of the present invention.

In the figure: 1. a gas chromatograph; 2. a butt-joint box; 3. an air inlet; 4. adjusting the inner cavity; 5. a lateral flow channel; 6. a lifting groove; 7. a piston plate; 8. inserting a column; 9. a guide bar; 10. a support; 11. an electric telescopic rod; 12. pressing the ball; 13. an air inlet pipe; 14. a through hole; 15. an electromagnetic valve; 16. folding the connecting pipe; 17. an air inlet head; 18. pressing a plate; 19. a column; 20. setting a sleeve; 21. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 2, the present invention provides a technical solution:

the utility model provides a gas chromatograph connecting device of convenient butt joint, includes gas chromatograph 1, and gas chromatograph 1 upper end inner chamber is provided with air inlet 3, and gas chromatograph 1's upper end is provided with butt joint case 2, and the upper end of air inlet 3 is provided with a pair of side direction runner 5 of bilateral symmetry, and the upper end of side direction runner 5 is vertical to be provided with adjusts inner chamber 4, utilizes side direction runner 5 to realize adjusting inner chamber 4 and air inlet 3's intercommunication.

A pressing plate 18 is slidably mounted in the adjusting inner cavity 4, a stand column 19 is arranged at the lower end of the pressing plate 18, a spring 21 is arranged on the stand column 19, the spring 21 is sleeved on the outer wall of the upper end of the stand column 19, the upper end of the spring 21 abuts against the lower end face of the pressing plate 18, the lower end of the spring 21 abuts against the inner wall of the lower end of the adjusting inner cavity 4, and the pressing plate 18 is pressed on the lower end face of the lower sleeve 20 through the spring 21.

The lower end of the butt joint box 2 is provided with a lower sleeve 20, the lower sleeve 20 at the lower end of the butt joint box 2 is hermetically inserted in an upper end inner cavity of the adjusting inner cavity 4, a piston plate 7 is slidably mounted in the inner cavity of the butt joint box 2, a pair of guide rods 9 which are bilaterally symmetrical are vertically welded at the upper end of the piston plate 7, a pair of through holes 14 which are bilaterally symmetrical are formed in the upper end face of the butt joint box 2, the guide rods 9 are slidably inserted in the through holes 14, and stable up-down lifting of the piston plate 7 is achieved by means of matching of the through holes 14 and the guide rods 9.

The lower extreme of piston plate 7 is provided with inserts post 8, insert post 8 and slide and peg graft in lower casing 20, the lower terminal surface of inserting post 8 is provided with inlet head 17, the upper end of inserting post 8 is connected with folding connecting pipe 16, fixed mounting has solenoid valve 15 in the middle of the up end of butt joint case 2, the upper end of solenoid valve 15 is connected with intake pipe 13, the folding connecting pipe 16 of lower extreme intercommunication of solenoid valve 15, the lower extreme intercommunication inlet head 17 of folding connecting pipe 16, utilize the cooperation of intake pipe 13 and inlet head 17 to admit air to piston plate 7 lower extreme inner chamber, make inside pressure increase, drive piston plate 7 and rise.

Butt joint box 2's the vertical welding in upper end has bilateral symmetry's a pair of support 10, electric telescopic handle 11 is installed downwards to the upper end of support 10 is vertical, electric telescopic handle 11's lower extreme is provided with pressure ball 12, guide arm 9's upper end is just to pressing ball 12, when guide arm 9 rises to the highest position, electric telescopic handle 11 drives pressure ball 12 and extrudees guide arm 9 downwards, make guide arm 9 downstream, piston plate 7 descends this moment, inside volume reduces, the pressure increase, make clamp plate 18 descend, spring 21 is compressed.

The lower extreme of adjusting inner chamber 4 is provided with lift groove 6, the upper end of clamp plate 18 is just to admitting air head 17, the lower extreme of stand 19 slides and pegs graft on lift groove 6, lift groove 6's upper end intercommunication adjusts inner chamber 4, when clamp plate 18 descends to side direction runner 5 lower extreme, gaseous along side direction runner 5 gets into in the air inlet 3, inside pressure reduces, under the effect that spring 21 and pressure reduce, realize the quick reset of clamp plate 18, reach timely sealed purpose, avoid gaseous backward flow, the security of detecting the admission has been improved greatly.

The working principle is as follows: firstly, air is fed into an inner cavity at the lower end of the piston plate 7 by matching of the air inlet pipe 13 and the air inlet head 17, so that the internal pressure is increased, the piston plate 7 is driven to ascend, stable ascending and descending of the piston plate 7 are realized by matching of the through hole 14 and the guide rod 9, at the moment, the pressing plate 18 is pressed on the lower end face of the lower sleeve 20 by the spring 21, when the guide rod 9 ascends to the highest position, the electromagnetic valve 15 is closed, the electric telescopic rod 11 drives the pressing ball 12 to downwards extrude the guide rod 9, the guide rod 9 moves downwards, at the moment, the piston plate 7 descends, the internal volume is reduced, the pressure is increased, the pressing plate 18 descends, and the spring 21 is compressed.

Utilize side direction runner 5 to realize adjusting the intercommunication of inner chamber 4 and air inlet 3, when clamp plate 18 descends to side direction runner 5 lower extreme, during gas got into air inlet 3 along side direction runner 5, inside pressure reduces, under the effect that spring 21 and pressure reduce, realizes resetting rapidly of clamp plate 18, reaches timely sealed purpose, avoids gaseous backward flow, has improved the security that detects the admission greatly.

The electric telescopic rod 11 and the electromagnetic valve 15 are common devices in the field and are not described in detail.

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.

Claims

1. The utility model provides a gas chromatograph connecting device of convenient butt joint, includes gas chromatograph (1), its characterized in that: an air inlet (3) is arranged in an inner cavity at the upper end of the gas chromatograph (1), a butt joint box (2) is arranged at the upper end of the gas chromatograph (1), a pair of lateral runners (5) which are bilaterally symmetrical are arranged at the upper end of the air inlet (3), an adjusting inner cavity (4) is vertically arranged at the upper end of the lateral runners (5), a pressing plate (18) is slidably arranged in the adjusting inner cavity (4), a stand column (19) is arranged at the lower end of the pressing plate (18), a spring (21) is arranged on the stand column (19), a lower sleeve (20) is arranged at the lower end of the butt joint box (2), a piston plate (7) is slidably arranged in the inner cavity of the butt joint box (2), a pair of supports (10) which are bilaterally symmetrical are vertically welded at the upper end of the butt joint box (2), an electromagnetic valve (15) is fixedly arranged in the middle of the upper end face of the butt joint box (2), and the lower sleeve (20) at the lower end of the butt joint box (2) is hermetically inserted in the inner cavity at the upper end of the adjusting inner cavity (4), the vertical welding in upper end of piston plate (7) has a pair of guide arm (9) of bilateral symmetry, and the lower extreme of piston plate (7) is provided with inserts post (8), insert post (8) and slide and peg graft in lower sleeve pipe (20), and the lower terminal surface of inserting post (8) is provided with inlet head (17), and the upper end of inserting post (8) is connected with folding even pipe (16), electric telescopic handle (11) are installed to the upper end of support (10) is vertical downwards, the lower extreme of electric telescopic handle (11) is provided with pressure ball (12).

2. A gas chromatograph connecting device facilitating butt joint according to claim 1, wherein: the lower end of the adjusting inner cavity (4) is provided with a lifting groove (6), the upper end of the pressing plate (18) is over against the air inlet head (17), the lower end of the upright post (19) is inserted in the lifting groove (6) in a sliding mode, and the upper end of the lifting groove (6) is communicated with the adjusting inner cavity (4).

3. A gas chromatograph connecting device facilitating butt joint according to claim 1, wherein: the spring (21) is sleeved on the outer wall of the upper end of the upright post (19), the upper end of the spring (21) abuts against the lower end face of the pressing plate (18), and the lower end of the spring (21) abuts against the inner wall of the lower end of the adjusting inner cavity (4).

4. A gas chromatograph connecting device facilitating butt joint according to claim 1, wherein: the upper end face of the butt joint box (2) is provided with a pair of through holes (14) which are bilaterally symmetrical, the guide rod (9) is inserted in the through holes (14) in a sliding mode, and the upper end of the guide rod (9) is opposite to the press ball (12).

5. A gas chromatograph connecting device facilitating butt joint according to claim 1, wherein: the upper end of the electromagnetic valve (15) is connected with an air inlet pipe (13), the lower end of the electromagnetic valve (15) is communicated with a folding connecting pipe (16), and the lower end of the folding connecting pipe (16) is communicated with an air inlet head (17).