CN220104956U

CN220104956U - Gas chromatograph

Info

Publication number: CN220104956U
Application number: CN202320340824.8U
Authority: CN
Inventors: 梅炼; 李志全; 黄世旬; 何星; 芦苇; 戴哲; 张妮
Original assignee: Guangjian Testing Technology Wuhan Co ltd
Current assignee: Guangjian Testing Technology Wuhan Co ltd
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-11-28
Anticipated expiration: 2033-02-23

Abstract

The utility model discloses a gas chromatograph, which comprises a machine body, a placing disc, a fixing frame, a sleeve and a clamping device, wherein the placing disc is arranged on the machine body and used for placing a liner tube; the assembly of taking is including seting up a plurality of square grooves on the sleeve, each sliding connection has L type grip block on the square groove, each L type grip block is relative one side is fixed with the rubber blotter. According to the gas chromatograph, when the detected surface temperature of the liner tube is high and is inconvenient to take and replace, the rubber buffer pads on the L-shaped clamping plates are propped against the outer side of the liner tube through the taking assembly, and the liner tube is clamped and taken through the propping action of the rubber buffer pads and the outer part of the liner tube, so that the liner tube can be conveniently taken and replaced after the gas chromatograph is used.

Description

Gas chromatograph

Technical Field

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

Background

The gas chromatograph is an instrument for qualitatively and quantitatively analyzing a complex mixture of multiple components by utilizing chromatographic separation technology and detection technology, and can be generally used for analyzing organic matters with heat stability in soil and boiling point not exceeding 500 ℃, such as volatile organic matters, organic chlorine, organic phosphorus, polycyclic aromatic hydrocarbon, phthalate ester and the like.

In the process of operation of the gas chromatograph, when the detection temperature of equipment is high, the temperature on the surface of the liner tube is difficult to be rapidly cooled after detection is finished, the liner tube is easy to scald hands when being directly taken, and the liner tube on the gas chromatograph is inconvenient to replace in time.

There is therefore a need for a gas chromatograph to address the above problems.

Disclosure of Invention

The utility model aims to provide a gas chromatograph, which solves the problems that the liner tube is easy to scald hands when being directly taken and is inconvenient to replace in time on the gas chromatograph.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the gas chromatograph comprises a machine body, a placing disc arranged on the machine body and used for placing a liner tube, and a fixing frame fixed on the machine body, wherein the lower end of the fixing frame is connected with a sleeve through a plurality of connecting pieces, and a taking assembly used for taking the placed liner tube is arranged on the sleeve;

the assembly of taking is including seting up a plurality of square grooves on the sleeve, each sliding connection has L type grip block on the square groove, each the relative one side of L type grip block is fixed with rubber buffer pad, telescopic inside is provided with and is used for each L type grip block driven drive assembly.

The square grooves and the L-shaped clamping plates are arranged on the sleeve in an annular array.

The driving assembly comprises a rotary table rotationally connected inside the sleeve, a plurality of inclined grooves are formed in the rotary table, transmission pins are slidably connected to the inclined grooves, the transmission pins are respectively fixed to the upper ends of the L-shaped clamping plates, and a rotating assembly which is used for rotating with the rotary table is arranged inside the sleeve.

The rotating assembly comprises a gear fixed at the upper end of the turntable, a rack is connected to the inside of the sleeve through a connecting assembly, the gear and the rack are mutually meshed, and a pushing assembly for pushing the rack is arranged on the sleeve.

The connecting assembly comprises a plurality of sleeves fixed on the inner wall of the sleeve, each sleeve is connected with a sliding rod in a sliding manner, and the other end of each sliding rod is fixed with the rack.

The pushing assembly comprises a push rod which is connected to the sleeve in a sliding mode, one end of the push rod is fixed with the rack, and the other end of the push rod is located outside the sleeve and is fixedly provided with a fixing pin.

The side wall of the push rod is sleeved with a spring, and two ends of the spring are respectively connected with the rack and the inner wall of the sleeve.

The connecting piece is an elastic rope, and two ends of the elastic rope are respectively connected with the sleeve and the fixing frame.

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

according to the gas chromatograph, when the detected surface temperature of the liner tube is high and is inconvenient to take and replace, the rubber buffer pads on the L-shaped clamping plates are propped against the outer side of the liner tube through the taking assembly, and the liner tube is clamped and taken through the propping action of the rubber buffer pads and the outer part of the liner tube, so that the liner tube can be conveniently taken and replaced after the gas chromatograph is used.

Drawings

FIG. 1 is a schematic diagram of the overall outline structure of the present utility model;

FIG. 2 is a schematic view of a tray and a holder according to the present utility model;

FIG. 3 is a schematic view of a pick-up assembly according to the present utility model;

fig. 4 is a schematic structural diagram of a driving assembly, a rotating assembly and a pushing assembly according to the present utility model.

In the figure: 1. a body; 2. placing a tray; 3. a fixing frame; 4. a sleeve; 5. an elastic rope; 601. a square groove; 602. an L-shaped clamping plate; 603. a rubber cushion pad; 701. a turntable; 702. a chute; 703. a drive pin; 801. a gear; 802. a rack; 901. a push rod; 902. a fixing pin; 903. a spring; 1001. a sleeve; 1002. and a slide bar.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the gas chromatograph provided by the utility model comprises a machine body 1, a placing disc 2 arranged on the machine body 1 and used for placing a liner tube, a fixing frame 3 fixed on the machine body 1, a sleeve 4 connected with the lower end of the fixing frame 3 through a plurality of connecting pieces, and a taking assembly used for taking the placed liner tube arranged on the sleeve 4;

the taking assembly comprises a plurality of square grooves 601 formed in a sleeve 4, each square groove 601 is connected with an L-shaped clamping plate 602 in a sliding manner, a rubber buffer pad 603 is fixed on one side, opposite to each L-shaped clamping plate 602, of each square groove, and a driving assembly for driving each L-shaped clamping plate 602 is arranged in the sleeve 4;

what needs to be explained here is: when the surface temperature of the liner tube is higher after detection and inconvenient to take and replace, the rubber buffer pads 603 on each L-shaped clamping plate 602 are propped against the outer side of the liner tube through the taking assembly, the liner tube is clamped and taken through the propping action of each rubber buffer pad 603 and the outer side of the liner tube, and the operation of taking and replacing the liner tube after the weather chromatograph is used is facilitated.

Each square groove 601 and the L-shaped clamping plate 602 are arranged in an annular array on the sleeve 4;

what needs to be explained here is: l-shaped clamping plates 602 arranged through a plurality of annular arrays are convenient for more stable clamping and taking.

The driving assembly comprises a rotary table 701 rotatably connected in the sleeve 4, a plurality of inclined grooves 702 are formed in the rotary table 701, transmission pins 703 are slidably connected to the inclined grooves 702, the transmission pins 703 are respectively fixed with the upper ends of the L-shaped clamping plates 602, and a rotating assembly which is used for rotating with the rotary table 701 is arranged in the sleeve 4;

what needs to be explained here is: through rotating the subassembly, drive carousel 701 rotates, and in carousel 701 pivoted in-process, through the transmission effect between each chute 702 and each driving pin 703 respectively, the atress of driving each L type grip block 602 moves near or keeps away from each other.

The rotating assembly comprises a gear 801 fixed at the upper end of the turntable 701, a rack 802 is connected to the inside of the sleeve 4 through a connecting assembly, the gear 801 and the rack 802 are meshed with each other, and a pushing assembly for pushing the rack 802 is arranged on the sleeve 4;

what needs to be explained here is: the rack 802 is driven to move in the sleeve 4 by the pushing assembly, and the turntable 701 is driven to rotate by the mutual meshing transmission between the rack 802 and the gear 801 during the movement of the rack 802.

The connecting assembly comprises a plurality of sleeves 1001 fixed on the inner wall of the sleeve 4, each sleeve 1001 is connected with a slide bar 1002 in a sliding way, and the other end of each slide bar 1002 is fixed with the rack 802;

what needs to be explained here is: the rack 802 after being subjected to the force is guided by the respective sleeves 1001 and the slide bar 1002.

The pushing assembly comprises a push rod 901 which is connected to the sleeve 4 in a sliding way, one end of the push rod 901 is fixed with the rack 802, and the other end of the push rod 901 is positioned outside the sleeve 4 and is fixed with a fixing pin 902;

what needs to be explained here is: in the process of pushing and pressing the fixing pin 902, the rack 802 is driven to move through the transmission of the push rod 901.

A spring 903 is sleeved on the side wall of the push rod 901, and two ends of the spring 903 are respectively connected with the rack 802 and the inner wall of the sleeve 4;

what needs to be explained here is: in the pushing process of the push rod 901, the driving spring 903 is stressed and deformed to generate elastic force, and the reset motion of the push rod 901 after pushing is facilitated by the elastic force of the spring 903.

The connecting piece is an elastic rope 5, and two ends of the elastic rope 5 are respectively connected with the sleeve 4 and the fixing frame 3;

what needs to be explained here is: through the elasticity and flexible connection of many elastic ropes 5, sleeve 4 lift and removal of being convenient for, further be convenient for carry out the clamp operation to the bushing pipe of different positions.

Working principle: when the surface temperature of the liner tube after detection is high and is inconvenient to take and replace in the using process of the gas chromatograph, the sleeve 4 is pushed against the liner tube placed on the placing plate 2, and in the pushing process, each L-shaped clamping plate 602 on the sleeve 4 is annularly arranged on the outer side of the sleeve 4;

after the sleeve 4 is pushed, the pushed position of the sleeve 4 is kept, the fixing pin 902 is extruded, in the process of extruding the fixing pin 902, the rack 802 is driven to move in the sleeve 4 through the transmission action of the push rod 901 and the guide action of each sleeve 1001 and each slide bar 1002 on the stressed rack 802, in the process of moving the rack 802, the rotary table 701 is driven to rotate through the mutual meshing transmission between the rack 802 and the gear 801, in the process of rotating the rotary table 701, each L-shaped clamping plate 602 is driven to be stressed to move close to each other through the transmission action of each chute 702 and each transmission pin 703, in the process of mutually approaching the L-shaped clamping plates 602, the rubber buffer pad 603 on each L-shaped clamping plate 602 is propped against the outer side of the liner tube, and the liner tube is clamped and taken through the propping action of each rubber buffer pad 603 and the outer part of the liner tube, so that the liner tube is conveniently taken and replaced after the weather chromatograph is used.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A gas chromatograph, comprising:

the liner tube placing machine comprises a machine body (1) and a placing disc (2) arranged on the machine body (1) and used for placing a liner tube;

characterized by further comprising:

the fixing frame (3) is fixed on the machine body (1), the lower end of the fixing frame (3) is connected with a sleeve (4) through a plurality of connecting pieces, and a taking assembly for taking the placed liner tube is arranged on the sleeve (4);

the assembly of taking is including seting up a plurality of square grooves (601) on sleeve (4), each sliding connection has L type grip block (602) on square groove (601), and each one side that L type grip block (602) are relative is fixed with rubber buffer pad (603), the inside of sleeve (4) is provided with the drive assembly who is used for each L type grip block (602) drive.

2. A gas chromatograph according to claim 1, characterized in that: the square grooves (601) and the L-shaped clamping plates (602) are arranged on the sleeve (4) in an annular array.

3. A gas chromatograph according to claim 2, characterized in that: the driving assembly comprises a rotary table (701) which is rotationally connected inside a sleeve (4), a plurality of inclined grooves (702) are formed in the rotary table (701), transmission pins (703) are connected to the inclined grooves (702) in a sliding mode, the transmission pins (703) are respectively fixed to the upper ends of the L-shaped clamping plates (602), and a rotating assembly which is used for rotating with the rotary table (701) is arranged inside the sleeve (4).

4. A gas chromatograph according to claim 3, characterized in that: the rotary assembly comprises a gear (801) fixed at the upper end of the rotary plate (701), a rack (802) is connected to the inside of the sleeve (4) through a connecting assembly, the gear (801) and the rack (802) are meshed with each other, and a pushing assembly for pushing the rack (802) is arranged on the sleeve (4).

5. A gas chromatograph according to claim 4, wherein: the connecting assembly comprises a plurality of sleeves (1001) fixed on the inner wall of the sleeve (4), each sleeve (1001) is connected with a sliding rod (1002) in a sliding mode, and the other end of each sliding rod (1002) is fixed with the rack (802).

6. A gas chromatograph according to claim 5, characterized in that: the pushing assembly comprises a push rod (901) which is connected to the sleeve (4) in a sliding mode, one end of the push rod (901) is fixed with the rack (802), and the other end of the push rod (901) is located outside the sleeve (4) and is fixed with a fixing pin (902).

7. A gas chromatograph according to claim 6, wherein: the side wall of the push rod (901) is sleeved with a spring (903), and two ends of the spring (903) are respectively connected with the rack (802) and the inner wall of the sleeve (4).

8. A gas chromatograph according to claim 1, characterized in that: the connecting piece is an elastic rope (5), and two ends of the elastic rope (5) are respectively connected with the sleeve (4) and the fixing frame (3).