CN215678234U

CN215678234U - Helium ionization gas chromatograph

Info

Publication number: CN215678234U
Application number: CN202121999322.3U
Authority: CN
Inventors: 王冲; 赵贺; 俞金
Original assignee: Beijing Gao Mai Ke Instrument S & T Co ltd
Current assignee: Beijing Gao Mai Ke Instrument S & T Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-01-28
Anticipated expiration: 2031-08-24

Abstract

The utility model belongs to the technical field of gas chromatographs, and particularly relates to a helium ionization gas chromatograph which comprises a gas chromatograph body and a support box, wherein the gas chromatograph body is fixedly installed at the top of the support box, screw sleeves are slidably installed at four corners of the bottom of the support box, a plurality of lifting screw rods are rotatably installed on the inner wall of the top of the support box and are respectively in threaded connection with the corresponding screw sleeves, driven bevel gears are fixedly sleeved on the outer sides of two lifting screw rods positioned on the front side, a plurality of vertical plates are fixedly installed on the inner part of the top of the support box and the inner wall of the bottom of the support box, the same two-way screw rod is rotatably installed on the plurality of vertical plates, driving bevel gears are fixedly sleeved at two ends of the two-way screw rods, and the two driving bevel gears are respectively meshed with the corresponding driven bevel gears. The leveling device is reasonable in design, simple to operate, capable of performing leveling operation according to needs, convenient to move and convenient to use.

Description

Helium ionization gas chromatograph

Technical Field

The utility model relates to the technical field of gas chromatographs, in particular to a helium ionization gas chromatograph.

Background

The gas chromatograph gasifies an analysis sample in an injection port, then carries the gasified analysis sample into a chromatographic column by carrier gas, separates the components by the chromatographic column with different retention performances on the components in the pre-detection mixture, and sequentially guides the components into a detector to obtain detection signals of the components. According to the sequence of leading in the detector, the components can be distinguished by comparison, and the content of each component can be calculated according to the peak height or peak area. Commonly used detectors are: thermal conductivity detectors, flame ionization detectors, helium ionization detectors, ultrasonic detectors, photoionization detectors, electron capture detectors, flame photometric detectors, electrochemical detectors, mass spectrometric detectors, and the like.

However, the existing gas chromatograph cannot be effectively leveled as required when in use, and meanwhile, when in need of moving, the mode of directly carrying is mostly adopted, so that the operation is complicated and the safety is poor, therefore, the helium ionization gas chromatograph is provided by the utility model to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects of the prior art and provides a helium ionized gas chromatograph.

The technical purpose of the utility model is realized by the following technical scheme: the helium ionization gas chromatograph comprises a gas chromatograph body and a support box, wherein the gas chromatograph body is fixedly installed at the top of the support box, screw sleeves are slidably installed at four corners of the bottom of the support box, a plurality of lifting screw rods are rotatably installed on the inner wall of the top of the support box and are in threaded connection with the corresponding screw sleeves respectively, driven bevel gears are fixedly sleeved on the outer sides of the two lifting screw rods positioned on the front side, a plurality of vertical plates are fixedly installed on the inner wall of the bottom and the inner wall of the top of the support box, the same two-way screw rod is rotatably installed on the vertical plates, driving bevel gears are fixedly sleeved at two ends of the two-way screw rod and are respectively meshed with the corresponding driven bevel gears, the bottom end of the screw sleeve extends to the lower part of the support box and is rotatably installed with a support plate, and an anti-skid pad is arranged at the bottom side of the support plate, sliding mounting has two bar boards on the top inner wall of supporting box, and two bar boards all with two-way lead screw threaded connection, both sides all rotate around the bar board and install the slurcam, and the one end that two slurcams kept away from the bar board all extends to the below of supporting box and has the removal wheel with the rotation.

Preferably, the fixed cover in the outside of two-way lead screw is equipped with the worm wheel, rotate on the front side inner wall of supporting box and install the worm, the worm meshes with the worm wheel mutually, the front end of worm extends to the front side of supporting box and fixed cover is equipped with the rolling disc, and is provided with the handle pole on the rolling disc.

Preferably, the through-hole has all been seted up in the bottom four corners of supporting box, fixed mounting has a plurality of limiting plates on the inner wall of through-hole, a plurality of spacing grooves have been seted up on the swivel nut, and a plurality of limiting plates respectively with the spacing groove sliding connection who corresponds.

Preferably, the outer sides of the lifting screw rods are fixedly sleeved with belt wheels, and the two belt wheels positioned on the same side are in transmission connection with the same belt.

Preferably, the runner is installed in the outside rotation of swivel nut, accommodate the lead screw is installed to the screw thread on the runner, accommodate the lead screw's top fixed mounting has the knob, the backup pad is the annular based on the swivel nut and has seted up a plurality of recesses for the centre of a circle, accommodate the lead screw's bottom has corresponding recess looks butt, the mounting groove has been seted up at the top of backup pad, the fixed cover is equipped with the inner circle of bearing on the swivel nut, the outer lane fixed mounting of bearing is in the mounting groove, and the bearing is aligning ball bearing.

Preferably, four rectangle mouths have been seted up to the bottom of supporting box, and equal fixed mounting has the fixed pin in four rectangle mouths, the bar mouth has been seted up on the slurcam, and fixed pin and bar mouth sliding connection.

The utility model has the beneficial effects that: according to the utility model, the rotating disc is rotated through the handle lever, the position of the strip-shaped plate can be adjusted under the action of the worm, the worm wheel and the two-way screw rod, the pushing plate can be guided under the action of the fixing pin and the strip-shaped opening, the moving wheel can be controlled to be in contact with the operating table top and form support under the combined action of the driving bevel gear, the driven bevel gear, the belt wheel, the belt and the like, meanwhile, the supporting plate is separated from the operating table top, the device is convenient to move under the action of the moving wheel, and the leveling operation can be performed on the device under the combined action of the rotating wheel, the adjusting screw rod, the groove and the aligning ball bearing.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic perspective view of a helium-ionized gas chromatograph according to the present invention;

FIG. 2 is a schematic cross-sectional view of a helium-ionized gas chromatograph according to the present invention;

FIG. 3 is a schematic structural diagram of part A of the helium ionized gas chromatograph according to the present invention;

fig. 4 is a schematic structural diagram of a part B of the helium ionization gas chromatograph according to the present invention.

In the figure: 1. a gas chromatograph body; 2. a support box; 3. a threaded sleeve; 4. a lifting screw rod; 5. a driven bevel gear; 6. a bidirectional screw rod; 7. a drive bevel gear; 8. a pulley; 9. a belt; 10. a limiting plate; 11. a limiting groove; 12. a support plate; 13. a rotating wheel; 14. adjusting the screw rod; 15. a strip plate; 16. a push plate; 17. a moving wheel; 18. a worm gear; 19. a worm; 20. and (6) rotating the disc.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

Referring to fig. 1-4, the helium ionization gas chromatograph comprises a gas chromatograph body 1 and a support box 2, wherein the gas chromatograph body 1 is fixedly installed at the top of the support box 2, turnbuckles 3 are slidably installed at four corners of the bottom of the support box 2, a plurality of lifting screws 4 are rotatably installed on the inner wall of the top of the support box 2, the lifting screws 4 are respectively in threaded connection with the corresponding turnbuckles 3, driven bevel gears 5 are fixedly sleeved at the outer sides of the two lifting screws 4 positioned at the front side, a plurality of vertical plates are fixedly installed on the inner part of the top of the support box 2 and the inner wall of the bottom, the same bidirectional screw 6 rotates on the vertical plates, the bidirectional screw 6 can be effectively supported through the vertical plates, driving bevel gears 7 are fixedly sleeved at two ends of the bidirectional screw 6, and the two driving bevel gears 7 are respectively meshed with the corresponding driven bevel gears 5, the bottom of swivel nut 3 extends to the below of supporting box 2 and rotates and install backup pad 12, and the bottom side of backup pad 12 is provided with the slipmat, can effectually avoid the device to appear sideslipping under the effect of slipmat, and then can improve the device's stability, slidable mounting has two bar plates 15 on the top inner wall of supporting box 2, and two bar plates 15 all with 6 threaded connection of two-way lead screw, both sides are all rotated around bar plate 15 and are installed slurcam 16, the one end that two slurcam 16 kept away from bar plate 15 all extends to the below of supporting box 2 and rotates and install and remove wheel 17, be convenient for remove the device under the effect that removes wheel 17.

In this embodiment, the fixed cover in outside of two-way lead screw 6 is equipped with worm wheel 18, it installs worm 19 to rotate on the front side inner wall of support box 2, worm 19 meshes with worm wheel 18 mutually, the front end of worm 19 extends to the front side of support box 2 and fixed cover is equipped with rolling disc 20, and be provided with the handle bar on the rolling disc 20, it makes worm 19 drive worm wheel 18 rotate to rotate through handle bar rotation rolling disc 20, thereby can drive two-way lead screw 6 and rotate, and then can adjust the position of strip plate 15.

In this embodiment, the through-hole has all been seted up in the bottom four corners of supporting box 2, and fixed mounting has a plurality of limiting plates 10 on the inner wall of through-hole, has seted up a plurality of spacing grooves 11 on the swivel nut 3, and a plurality of limiting plates 10 respectively with the 11 sliding connection of the spacing groove that correspond, can make swivel nut 3 follow the slip that the through-hole remains stable under limiting plate 10 and spacing groove 11's effect, can carry out effectual injecing to its home range simultaneously.

In this embodiment, the belt pulleys 8 are fixedly sleeved on the outer sides of the plurality of lifting screw rods 4, the two belt pulleys 8 located on the same side are connected with the same belt 9 in a transmission manner, and the two lifting screw rods 4 located on the same side can keep rotating synchronously under the action of the belt pulleys 8 and the belt 9.

In this embodiment, runner 13 is installed in the outside rotation of swivel nut 3, accommodate the lead screw 14 is installed to the screw thread on runner 13, accommodate the lead screw 14's top fixed mounting has the knob, backup pad 12 is the annular based on swivel nut 3 and has seted up a plurality of recesses for the centre of a circle, accommodate the lead screw 14's bottom has corresponding recess looks butt, the mounting groove has been seted up at the top of backup pad 12, the fixed cover is equipped with the inner circle of bearing on the swivel nut 3, the outer lane fixed mounting of bearing is in the mounting groove, and the bearing is self-aligning ball bearing, at accommodate the lead screw 14, under the mutually supporting between components such as runner 13 and recess, can be when the operation mesa is level inadequately, rotate accommodate the lead screw 14 through the knob and adjust the angle of backup pad 12, thereby can realize carrying out stable support to gas chromatograph body 1.

In this embodiment, four rectangle mouths have been seted up to the bottom of supporting box 2, equal fixed mounting has the fixed pin in four rectangle mouths, the bar mouth has been seted up on the slurcam 16, and fixed pin and bar mouth sliding connection, can lead slurcam 16 under the effect of bar mouth and fixed pin, thereby can drive four slurcams 16 when two strip boards 15 move to the direction of keeping away from each other and make and remove wheel 17 and operation mesa and contact, and then be convenient for remove gas chromatograph body 1.

The working principle is as follows: when the device is used, firstly, the device is placed on an operation table board, the rotating wheel 13 is rotated to a proper angle according to needs, the adjusting screw rod 14 is rotated through a knob to enable the bottom end of the adjusting screw rod to be abutted to the corresponding groove, so that the gas chromatograph body 1 can be leveled, when the device needs to be moved, the rotating disc 20 is rotated through the handle rod, the two-way screw rod 6 is driven under the action of the worm 19 and the worm wheel 18 to enable the two strip-shaped plates 15 to move towards the directions away from each other, the pushing plate 16 can be pushed to enable the moving wheel 17 to be in contact with the operation table board and form support, meanwhile, the four lifting screw rods 4 are driven to rotate under the combined action of the driving bevel gear 7, the driven bevel gear 5, the belt wheel 8 and the belt 9, so that the screw sleeve 3 can drive the support plate 12 to move upwards, then, the device is moved to a proper position, after the position adjustment is completed, the rotating disc 20 is reversely rotated through the handle rod, can realize accomodating removal wheel 17, make swivel nut 3 drive backup pad 12 and operation mesa contact and form stable support simultaneously, can avoid the device to appear sideslipping under the effect of slipmat.

The helium ionization gas chromatograph provided by the utility model is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are set forth only to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The helium ionization gas chromatograph comprises a gas chromatograph body (1) and a supporting box (2), and is characterized in that the gas chromatograph body (1) is fixedly installed at the top of the supporting box (2), threaded sleeves (3) are slidably installed at four corners of the bottom of the supporting box (2), a plurality of lifting screws (4) are rotatably installed on the inner wall of the top of the supporting box (2), the lifting screws (4) are respectively in threaded connection with the corresponding threaded sleeves (3), driven bevel gears (5) are fixedly sleeved on the outer sides of the two lifting screws (4) positioned on the front side, a plurality of vertical plates are fixedly installed on the inner portion of the top of the supporting box (2) and the inner wall of the bottom, the same two bidirectional screws (6) are rotatably installed on the plurality of vertical plates, driving bevel gears (7) are fixedly sleeved at two ends of the bidirectional screws (6), and the two driving bevel gears (7) are respectively meshed with the corresponding driven bevel gears (5), the bottom of swivel nut (3) extends to the below of supporting box (2) and rotates and install backup pad (12), and the bottom side of backup pad (12) is provided with the slipmat, slidable mounting has two bar boards (15) on the top inner wall of supporting box (2), and two bar boards (15) all with two-way lead screw (6) threaded connection, both sides all rotate around bar board (15) and install slurcam (16), and the one end that two slurcam (16) kept away from bar board (15) all extends to the below of supporting box (2) and rotates and install removal wheel (17).

2. The helium-ionized gas chromatograph of claim 1, wherein: the fixed cover in outside of two-way lead screw (6) is equipped with worm wheel (18), rotate on the front side inner wall of supporting box (2) and install worm (19), worm (19) mesh mutually with worm wheel (18), the front end of worm (19) extends to the front side of supporting box (2) and fixed cover is equipped with rolling disc (20), and is provided with the handle bar on rolling disc (20).

3. The helium-ionized gas chromatograph of claim 1, wherein: the through-hole has all been seted up in the bottom four corners of supporting box (2), fixed mounting has a plurality of limiting plate (10) on the inner wall of through-hole, a plurality of spacing groove (11) have been seted up on swivel nut (3), and a plurality of limiting plate (10) respectively with corresponding spacing groove (11) sliding connection.

4. The helium-ionized gas chromatograph of claim 1, wherein: the outer sides of the lifting screw rods (4) are fixedly sleeved with belt wheels (8), and two belt wheels (8) on the same side are in transmission connection with the same belt (9).

5. The helium-ionized gas chromatograph of claim 1, wherein: runner (13) are installed in the outside rotation of swivel nut (3), accommodate the lead screw (14) are installed to the screw thread on runner (13), the top fixed mounting of accommodate the lead screw (14) has the knob, backup pad (12) are a plurality of recesses for the centre of a circle annular based on swivel nut (3), the bottom of accommodate the lead screw (14) has corresponding recess looks butt, the mounting groove has been seted up at the top of backup pad (12), the inner circle of fixed cover being equipped with the bearing on swivel nut (3), the outer lane fixed mounting of bearing is in the mounting groove, and the bearing is aligning ball bearing.

6. The helium-ionized gas chromatograph of claim 1, wherein: four rectangle mouths have been seted up to the bottom of supporting box (2), and equal fixed mounting has the fixed pin in four rectangle mouths, the bar mouth has been seted up on slurcam (16), and fixed pin and bar mouth sliding connection.