CN212410527U

CN212410527U - Auxiliary feeding device for gas chromatograph

Info

Publication number: CN212410527U
Application number: CN202020482999.9U
Authority: CN
Inventors: 吴方方; 邓爱珍
Original assignee: Foshan Tianyuan Environmental Testing Service Co ltd
Current assignee: Foshan Tianyuan Environmental Testing Service Co ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2021-01-26
Anticipated expiration: 2030-04-03

Abstract

The utility model belongs to the technical field of the detection technique and specifically relates to a supplementary loading attachment for gas chromatograph, including base, last charging tray, be used for changing the rotary mechanism of charging tray rotation angle and be used for changing the translation mechanism of the relative position of charging tray and base, go up the charging tray and install at rotary mechanism's output end department, rotary mechanism and base sliding connection install at translation mechanism's output end department, translation mechanism installs on the base. The utility model discloses a supplementary loading attachment for gas chromatograph mutually supports through rotary mechanism and translation mechanism and fixes a position the test tube before gas chromatograph's auto sucking ware material loading, reduces gas chromatograph's auto sucking ware's the radial round trip movement along the last charging tray, reduces charging tray stand-by time and material loading time, improves the rate of utilization and the material loading efficiency of charging tray.

Description

Auxiliary feeding device for gas chromatograph

Technical Field

The utility model belongs to the technical field of the detection technique and specifically relates to a gas chromatograph is with supplementary loading attachment.

Background

The gas chromatograph is a detection instrument for qualitatively and quantitatively analyzing a multi-component complex mixture by utilizing a chromatographic separation technology and a detection technology. Gas chromatographs are commonly used to analyze thermally stable organic materials in soils with boiling points not exceeding 500 ℃, such as volatile organic materials, organochlorines, organophosphates, polycyclic aromatic hydrocarbons, phthalate esters, and the like.

The feeding method of the gas chromatograph in the prior art has two methods, namely manual feeding and automatic feeding. In the manual feeding method, an operator is required to manually inject a sample into the gas chromatograph, and the speed of each sample injection is difficult to be kept uniform, so that the reproducibility of detection is also poor. In the automatic feeding method, a feeding disc for placing the test tube is matched with a movable material sucking device to feed the gas chromatograph, and the specific working principle is that the feeding disc rotates the test tube to a feeding station of the movable material sucking device, the movable material sucking device moves to the position above the test tube to be fed, and then moves downwards to suck the test tube, so that the detection reproducibility of the automatic feeding method is good. However, in the automatic feeding method, the detection period of each gas chromatograph is long (more than 10 minutes is needed), the standby time of the feeding tray is long, and the movable material sucker needs to move back and forth along the radial direction of the feeding tray to realize positioning during feeding, so that the feeding time is increased indirectly. Therefore, there is a need for an improved auxiliary charging device for a gas chromatograph.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a supplementary loading attachment for gas chromatograph is provided, charging tray stand-by time and material loading time in the reduction improve the rate of utilization and the material loading efficiency of charging tray.

The utility model discloses a gas chromatograph is with supplementary loading attachment, including the base, go up the charging tray, be used for changing the rotary mechanism of charging tray rotation angle and be used for changing the translation mechanism of the relative position of charging tray and base, it installs at rotary mechanism's output department to go up the charging tray, rotary mechanism and base sliding connection install at translation mechanism's output department, translation mechanism installs on the base.

As an improvement of the above scheme, the rotating mechanism includes a connecting seat installed at the output end of the translation mechanism, a first motor installed on the connecting seat, and a connecting plate installed at the output end of the first motor, the feeding tray is installed on the connecting plate, and the axis of the feeding tray coincides with the rotation axis of the first motor.

As an improvement of the above scheme, the translation mechanism includes a carriage, a lead screw for driving the carriage to slide relative to the base, and a second motor for driving the lead screw to rotate, the carriage is connected with the base in a sliding manner, the connecting seat is installed on the carriage, the lead screw is connected with the base in a rotating manner and is installed at the output end of the second motor, and the second motor is installed on the base.

As the improvement of above-mentioned scheme, the utility model discloses a supplementary loading attachment for gas chromatograph is still including installing the controller on the base, first motor and second motor all with controller electric connection.

As the improvement of the scheme, the feeding disc is provided with a plurality of circles of storage stations for placing test tubes, and each circle of storage stations are uniformly distributed around the circumference of the rotating axis of the feeding disc.

As an improvement of the scheme, the number of the storage stations in each circle is the same.

As an improvement of the scheme, the storage stations at the same angle are arranged at equal intervals along the radial direction of the upper tray.

As an improvement of the scheme, each station is provided with two counter bores, and each counter bore is used for placing a test tube.

Implement the utility model discloses, following beneficial effect has:

the utility model discloses a rotary mechanism and translation mechanism synchronous motion in the supplementary loading attachment for gas chromatograph make the test tube enter into under gas chromatograph's auto sucking device, mutually support through rotary mechanism and translation mechanism and fix a position the test tube before gas chromatograph's auto sucking device material loading, reduce gas chromatograph's auto sucking device's the radial round trip movement along the charging tray, reduce the material loading time; the utility model discloses a gas chromatograph can also make the test tube on the charging tray switch between two sets of gas chromatograph's the material loading station of inhaling the glassware, carries out the material sucking device of another group of gas chromatograph of in-process cooperation that detects at a set of cylinder chromatograph, reduces charging tray stand-by time and material loading time, improves the rate of utilization and the material loading efficiency of charging tray.

Drawings

Fig. 1 is a schematic front view of an auxiliary feeding device for a gas chromatograph in an embodiment of the present invention;

fig. 2 is a schematic top view of the auxiliary feeding device for a gas chromatograph in the embodiment of the present invention;

fig. 3 is a schematic diagram of the connection of the controller according to the embodiment of the present invention.

In the figure: 1. a base; 2. feeding a material plate; 3. a rotation mechanism; 4. a translation mechanism; 31. a connecting seat; 32. a first motor; 33. a connecting plate; 41. a carriage; 42. a screw rod; 43. a second motor; 5. a controller; 21. a counterbore.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical idea claimed in the present invention. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside etc. position words that appear or will appear in the text only use the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.

As shown in fig. 1-3, the embodiment of the present invention provides an auxiliary feeding device for gas chromatograph, including base 1, feeding tray 2, rotating mechanism 3 for changing the rotation angle of feeding tray 2 and translation mechanism 4 for changing the relative position of feeding tray 2 and base 1, feeding tray 2 is installed at the output end of rotating mechanism 3, rotating mechanism 3 and base 1 are slidably connected and installed at the output end of translation mechanism 4, translation mechanism 4 is installed on base 1, and auxiliary feeding device for gas chromatograph can be installed in the required position through base 1. In practical application, the test tube placed on the feeding tray 2 is filled with the test agent to be detected, the rotating mechanism 3 is used for adjusting the angle of the test tube on the feeding tray 2, so that the test tube enters the feeding station of the material suction device of the gas chromatograph, and the translation mechanism 4 adjusts the position of the test tube, so that the test tube enters the material suction device of the gas chromatograph under the test tube. Simultaneously, can also be through the translation distance of extension translation mechanism 4, the test tube that can go up on the charging tray 2 can switch between the material loading station of two sets of gas chromatograph's auto sucking ware.

The utility model discloses a rotary mechanism 3 and translation mechanism 4 synchronous motion among the supplementary loading attachment for gas chromatograph make the test tube enter into gas chromatograph under the auto sucking device, mutually support through rotary mechanism 3 and translation mechanism 4 and fix a position the test tube before the auto sucking device of gas chromatograph is loaded, reduce the radial round trip movement of the auto sucking device of gas chromatograph along loading tray 2, reduce the material loading time; the utility model discloses a gas chromatograph is with supplementary loading attachment can also make the test tube on the charging tray 2 can switch between two sets of gas chromatograph's the material loading station of inhaling the glassware, carries out the material sucking device of another group of gas chromatograph of in-process cooperation that detects at a set of cylinder chromatograph, reduces charging tray 2 stand-by time and material loading time, improves charging tray 2's rate of utilization and material loading efficiency.

In fact, the rotating mechanism 3 preferably includes a connecting seat 31 installed at the output end of the translation mechanism 4, a first motor 32 installed on the connecting seat 31, and a connecting plate 33 installed at the output end of the first motor 32, the upper tray 2 is installed on the connecting plate 33, the installation manner may be threaded connection, clamping, welding, etc., and the axis of the upper tray 2 coincides with the rotation axis of the first motor 32. The rotation angle of the feeding tray 2 can be changed by changing the rotation angle of the output shaft of the first motor 32, so that the positions of the test tubes on the feeding tray 2 are changed.

Specifically, the translation mechanism 4 preferably includes a carriage 41, a screw rod 42 for driving the carriage 41 to slide relative to the base 1, and a second motor 43 for driving the screw rod 42 to rotate, the carriage 41 is slidably connected to the base 1, the connecting base 31 is mounted on the carriage 41, the screw rod 42 is rotatably connected to the base 1 and is mounted at an output end of the second motor 43, and the second motor 43 is mounted on the base 1. Wherein, the screw rod 42 is rotatably connected with the base 1 through a bearing. The second motor 43 is matched with the screw rod 42 and the sliding frame 41, so that the position of the feeding tray 2 can be changed, and the positioning precision is high.

It should be noted that, the utility model discloses a supplementary loading attachment for gas chromatograph is still preferred including installing controller 5 on base 1, first motor 32 and second motor 43 all with controller 5 electric connection. The controller 5 is a PLC, and can perform logic operation, sequence control, timing and counting, and control the operation of each electrical component by changing the connection mode of the input end and the output end, so that each electrical component can automatically operate. The controller 5 is matched with the first motor 32 and the second motor 43, so that the test tube position of the feeding tray 2 can be automatically switched.

It should be noted that, the material loading plate 2 is preferably provided with a plurality of circles of storage stations for placing test tubes, and each circle of storage stations is uniformly distributed around the circumference of the rotating axis of the material loading plate 2. As shown in fig. 2, a circle has 16 storage stations, and the rotating mechanism 3 drives the upper tray 2 to rotate 22.5 degrees, so that the circle of storage stations can move through one station.

Furthermore, the number of the storage stations in each circle is preferably the same, namely the rotation angles required for moving the storage stations in different circles through one station are the same, so that the positioning of the feeding tray 2 is simplified.

Furthermore, the storage stations at the same angle are arranged along the radial direction of the upper tray 2 at equal intervals, so that the distance between two adjacent storage stations is the same, and when the material suction device of the gas chromatograph is positioned on one storage station, the other storage station at the same angle can be switched to be positioned under the material suction device of the gas chromatograph only by changing the position of the upper tray 2 through the translation mechanism 4.

In addition, each station is provided with two counter bores 21, and each counter bore 21 is used for placing a test tube. The feeding efficiency is improved by matching with a gas chromatograph provided with double suckers.

The above is only the concrete embodiment of the present invention, and not therefore the limit of the patent scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a gas chromatograph is with supplementary loading attachment which characterized in that: including base, last charging tray, be used for changing the rotary mechanism of going up charging tray rotation angle and be used for changing the translation mechanism of the relative position of going up charging tray and base, it installs at rotary mechanism's output end department to go up the charging tray, rotary mechanism and base sliding connection install at translation mechanism's output end department, translation mechanism installs on the base.

2. The auxiliary charging device for a gas chromatograph of claim 1, wherein: the rotating mechanism comprises a connecting seat arranged at the output end of the translation mechanism, a first motor arranged on the connecting seat and a connecting plate arranged at the output end of the first motor, the feeding plate is arranged on the connecting plate, and the axis of the feeding plate coincides with the rotating axis of the first motor.

3. The auxiliary charging device for a gas chromatograph of claim 2, wherein: translation mechanism includes the balladeur train, is used for driving the gliding lead screw of balladeur train relative base and is used for driving lead screw pivoted second motor, balladeur train and base sliding connection, the connecting seat is installed on the balladeur train, the lead screw rotates with the base to be connected and installs at the output end department of second motor, the second motor is installed on the base.

4. An auxiliary charging device for a gas chromatograph according to claim 3, wherein: the motor is characterized by further comprising a controller installed on the base, and the first motor and the second motor are electrically connected with the controller.

5. An auxiliary charging device for a gas chromatograph according to any of claims 1 to 4, wherein: the material loading plate is provided with a plurality of circles of storage stations for placing test tubes, and each circle of storage stations is uniformly distributed around the circumference of the rotating axis of the material loading plate.

6. An auxiliary charging device for a gas chromatograph according to claim 5, wherein: the number of the storage stations in each circle is the same.

7. The auxiliary charging device for a gas chromatograph of claim 6, wherein: the storage stations at the same angle are arranged at equal intervals along the radial direction of the upper charging tray.

8. An auxiliary charging device for a gas chromatograph according to claim 5, wherein: each station is provided with two counter bores, and each counter bore is used for placing a test tube.