CN209841794U

CN209841794U - Portable gas chromatograph

Info

Publication number: CN209841794U
Application number: CN201920629166.8U
Authority: CN
Inventors: 吴林滨; 张嘉良
Original assignee: Guangdong Zhongrun Testing Technology Co Ltd
Current assignee: Guangdong Zhongrun Testing Technology Co Ltd
Priority date: 2019-05-05
Filing date: 2019-05-05
Publication date: 2019-12-24
Anticipated expiration: 2029-05-05

Abstract

The utility model discloses a portable gas chromatograph belongs to the chromatograph and carries technical field, including the gas chromatograph main part, the inboard bottom of gas chromatograph main part is provided with the safety cover, the both ends of the inside both sides of safety cover all are provided with first bracing piece, the top of first bracing piece is provided with first spring, the bottom of first bracing piece all is provided with the support frame that runs through to gas chromatograph main part bottom, the universal wheel is all installed to the bottom of support frame. The utility model discloses a press down one of them a set of handle to one side of gas chromatograph main part, make the handle drive first pivot to the back motion to promote the backup pad rearward movement and extrude the second spring, and drive the backup pad rearward movement on right side when making left backup pad rearward movement through the third bracing piece, realized two sets of first pivots while rearward movement, and realized the effect that the universal wheel resets fast under the effect of second spring and first spring, improved work efficiency.

Description

Portable gas chromatograph

Technical Field

The utility model relates to a chromatograph carries technical field, specifically is a portable gas chromatograph.

Background

The gas chromatograph is an instrument for qualitatively and quantitatively analyzing a multi-component complex mixture by utilizing a chromatographic separation technology and a detection technology, and can be generally used for analyzing organic matters which are thermally stable in soil and have a boiling point of not more than 500 ℃, such as volatile organic matters, organic chlorine, organic phosphorus, polycyclic aromatic hydrocarbons, phthalate esters and the like.

However, in the moving process of the existing gas chromatograph, bolts are generally adopted to drive gears to rotate and drive supporting rods of a single group of universal wheels to ascend or descend, so that the universal wheels are in contact with the ground and then the gas chromatograph is pushed to move.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problem that the four groups of bolts need to be rotated respectively in each use, the difficulty of work is increased, the supporting rods of the universal wheels cannot be reset quickly, and therefore the work efficiency is reduced, the portable gas chromatograph is provided.

In order to achieve the above object, the utility model provides a following technical scheme: a portable gas chromatograph comprises a gas chromatograph main body, wherein a protective cover is arranged at the bottom end of the inner side of the gas chromatograph main body, first support rods are arranged at two ends of two sides in the protective cover, a first spring is arranged at the top of each first support rod, support frames penetrating to the bottom of the gas chromatograph main body are arranged at the bottom of each first support rod, universal wheels are arranged at the bottoms of the support frames, a first rotating shaft is arranged at one side of each first support rod, ratchets are arranged at two ends of the outer side of the first rotating shaft, a handle penetrating to one end of the protective cover is arranged at one end of each first rotating shaft, a support plate is arranged at one side of each first rotating shaft far away from the handle, rollers are arranged at one side of the outer side of the first rotating shaft close to the support plate, a bearing seat is arranged at one side of the support plate close to the rollers, and a second, the figure of backup pad is two sets of, and two sets of the backup pad passes through third bracing piece fixed connection, the four corners department of gas chromatograph main part bottom all is provided with the supporting leg.

Preferably, the figure of ratchet is four groups, and every one side at the top of ratchet all is provided with the pawl, one side that the ratchet was kept away from to the pawl all is connected with the safety cover rotation through the second pivot, the below of second pivot all is provided with flexible loop bar, and the top of flexible loop bar all is connected through round pin axle and pawl rotation, the outside of flexible loop bar all is provided with the spring.

Preferably, the inside of bearing frame all is provided with the bearing, first pivot all is connected with the backup pad rotation through mutually supporting of bearing frame and bearing.

Preferably, the number of the rollers is two, and the two rollers are rotationally connected through a belt.

Preferably, one side of the first support rod close to the ratchet wheel is provided with a latch matched with the ratchet wheel, and the first support rod is meshed with the ratchet wheel through the latch.

Preferably, the top that ratchet one side was kept away from to first bracing piece all is provided with the slider, inside one side of safety cover all is provided with the spout with slider assorted.

Preferably, the protective cover is of a U-shaped structure, and two sides of the protective cover are provided with the box doors.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model rotates one group of the handles to drive the first rotating shaft to rotate, so that the first rotating shaft rotates to drive the two groups of rollers to rotate under the action of the belt, so that the two groups of first rotating shafts rotate simultaneously, the four groups of ratchets rotate, the heights of the four groups of universal wheels are adjusted simultaneously by meshing the ratchets with the latch teeth on the first supporting rod, the difficulty of work is reduced, one group of the handles is pressed towards one side of the main body of the gas chromatograph to drive the first rotating shafts to move backwards, so that the supporting plate is pushed to move backwards and extrude the second spring, and meanwhile, the supporting plate on the right side is driven to move backwards when the supporting plate on the left side moves backwards through the third supporting rod, so that the two groups of first rotating shafts move backwards simultaneously, the four groups of ratchets are separated from the pawl and the latch teeth on the first supporting rod, and the first supporting rod is reset under the action of the first spring, thereby the effect that the universal wheel resets fast has been realized, work efficiency has been improved.

Drawings

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

fig. 2 is a top view of the present invention;

FIG. 3 is a schematic view of a partial structure of the present invention;

fig. 4 is a schematic structural view of the support rod of the present invention;

fig. 5 is an enlarged view of a of the support bar of the present invention;

fig. 6 is an enlarged view of the present invention B.

In the figure: 1. a gas chromatograph main body; 2. a protective cover; 3. a first support bar; 4. a support frame; 5. a first spring; 6. a first rotating shaft; 7. a ratchet wheel; 8. a handle; 9. a roller; 10. a belt; 11. a support plate; 12. a bearing seat; 13. a third support bar; 14. a second spring; 15. a pawl; 16. a telescopic loop bar; 17. a second rotating shaft; 18. supporting legs; 19. a universal wheel.

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. 1-6, a portable gas chromatograph includes a gas chromatograph main body 1, a protective cover 2 is disposed at the bottom end of the inner side of the gas chromatograph main body 1, first support rods 3 are disposed at both ends of the inner side of the protective cover 2, a first spring 5 is disposed at the top of each first support rod 3, a support frame 4 penetrating the bottom of the gas chromatograph main body 1 is disposed at the bottom of each first support rod 3, universal wheels 19 are mounted at the bottom of each support frame 4, a first rotating shaft 6 is disposed at one side of each first support rod 3, ratchet wheels 7 are disposed at both ends of the outer side of each first rotating shaft 6, a handle 8 penetrating the end of the protective cover 2 is disposed at one end of each first rotating shaft 6, a support plate 11 is disposed at one side of each first rotating shaft 6 away from the handle 8, a roller 9 is disposed at one side of the outer side of each first rotating shaft 6 close to the support plate 11, a, one side that bearing frame 12 was kept away from to backup pad 11 all is provided with second spring 14, and the figure of backup pad 11 is two sets of, and just two sets of backup pads 11 are through third bracing piece 13 fixed connection, and the four corners department of gas chromatograph main part 1 bottom all is provided with supporting leg 18.

This use is novel to drive the backup pad 11 rearward movement on right side when making left backup pad 11 rearward movement through third bracing piece 13 to realized two sets of first pivots 6 simultaneous rearward movement, made the separation of the latch on four ratchet 7 of group and the first bracing piece 3, made first bracing piece 3 reset under the effect of first spring 5, thereby realized the effect that the universal wheel resets fast, improved work efficiency.

Please refer to fig. 1 and 5, the number of the ratchet wheels 7 is four, and one side of the top of each ratchet wheel 7 is provided with a pawl 15, one side of the pawl 15 away from the ratchet wheel 7 is rotatably connected with the protective cover 2 through a second rotating shaft 17, a telescopic loop bar 16 is arranged below the second rotating shaft 17, the top of the telescopic loop bar 16 is rotatably connected with the pawl 15 through a pin shaft, and the outer side of the telescopic loop bar 16 is provided with a spring.

According to the portable gas chromatograph, the ratchet wheel 7 strikes the pawl 15 and continuously extrudes the telescopic loop bar 16 in the rotating process, meanwhile, the spring on the telescopic loop bar 16 generates upward elastic force on the pawl 15, and when external acting force is not generated on the ratchet wheel 7, the pawl 15 plays a fixing role on the ratchet wheel 7, so that the limitation of the supporting height of the universal wheel 19 is realized.

Please refer to fig. 2, 3, 4 and 6, the bearing seat 12 is provided with bearings inside, the first rotating shaft 6 is rotatably connected to the supporting plate 11 through the mutual cooperation of the bearing seat 12 and the bearings, the number of the rollers 9 is two, and the two sets of rollers 9 are rotatably connected through the belt 10.

This kind of portable gas chromatograph passes through mutually supporting of bearing frame 12 and bearing, makes first pivot 6 rotate with backup pad 11 and is connected to reduced frictional force, it is better to make first pivot 6 pivoted effect, and do not produce the effort to second spring 14, thereby do not influence subsequent function, and improved second spring 14's life, and make two sets of gyro wheels 9 rotate simultaneously through belt 10, thereby make two sets of first pivot 6's rotation effect better, it is more laborsaving to rotate.

Please refer to fig. 1 and 4, the first supporting rod 3 is provided with a latch matching with the ratchet 7 at a side close to the ratchet 7, and the first supporting rod 3 is engaged with the ratchet 7 through the latch.

This kind of portable gas chromatograph passes through latch and ratchet 7 intermeshing to make ratchet 7 rotate the better first bracing piece 3 of drive and rotate, and make first bracing piece 3 only can move towards same direction through ratchet 7, thereby avoided first bracing piece 3 because first spring 5 resets, thereby improved this kind of portable gas chromatograph's stability.

Please refer to fig. 1, 2 and 5, the top ends of the first support rods 3 away from the ratchet wheel 7 are provided with sliding blocks, one side of the inside of the protection cover 2 is provided with sliding grooves matched with the sliding blocks, the protection cover 2 is in a U-shaped structure, and two sides of the protection cover 2 are provided with box doors.

This kind of portable gas chromatograph passes through mutually supporting of slider and spout, has not only reduced the frictional force between first bracing piece 3 and the safety cover 2, and has played spacing gliding effect to first bracing piece 3, makes first bracing piece 3 only can move in same vertical direction, and is convenient for the later stage through the chamber door that sets up and maintains this kind of portable gas chromatograph.

The working principle is as follows: before the gas chromatograph main body 1 is used, the gas chromatograph main body 1 is supported with the ground through the supporting legs 18, meanwhile, the universal wheels 19 are not contacted with the ground, so that the stability of the gas chromatograph main body 1 is better, when the gas chromatograph main body is used, the handle 8 on the left side is rotated clockwise (the left side and the right side are both provided with the handles 8, the handles 8 at different positions are selected according to habits of users), the handle 8 drives the first rotating shaft 6 on the left side to rotate under the action of the bearing seat 12, the first rotating shaft 6 on the left side is rotated to drive the roller 9 on the left side to rotate, the roller 9 on the right side and the first rotating shaft 6 are driven to rotate under the action of the belt (the handle 8 on the right side can be observed to rotate at the same time from the outside of the gas chromatograph main body 1), so as to drive the ratchet 7 on the first rotating shaft 6 to rotate clockwise, the ratchet 7 is, thereby simultaneously driving four groups of universal wheels 19 to move downwards until the universal wheels 19 are contacted with the ground, then continuously rotating the handle 8, enabling the universal wheels to continuously move downwards, jacking up the gas chromatograph main body 1, enabling the supporting legs 18 to be slowly separated from the ground, enabling the ratchet wheel 7 to strike the pawl 15 and continuously extrude the telescopic loop bar 16 in the rotating process, enabling the spring on the telescopic loop bar 16 to generate upward elastic force on the pawl 15, enabling the pawl 15 to play a fixed role on the ratchet wheel 7 when external acting force is not generated on the ratchet wheel 7, thereby realizing the limitation of the supporting height of the universal wheels 19, and enabling the handle 8 to generate certain backward acting force on the first rotating shaft 6 by extruding the handle 8 on the left side (or the handle 8 on the right side) when the movement is not required, thereby enabling the first rotating shaft 6 to push the supporting plate 11 to move backwards, and enabling the supporting plate 11 on the left side to be fixedly connected with the supporting plate 11 on the right side due to the third supporting rod 13, so that the two sets of support plates 11 move backwards simultaneously and press the second springs 14, so that the two sets of first rotating shafts 6 drive the four sets of ratchet wheels 7 to move backwards simultaneously, the ratchet wheels 7 are separated from the pawls 15 and the latch teeth on the first support rods 3 simultaneously, so that the first support rods 3 are reset under the action of the first springs 5, the first support rods 3 drive the universal wheels 19 to move upwards and be separated from the ground, and the support legs 18 are contacted with the ground, when the universal wheels 19 are separated from the ground and are lifted to a proper height, the pressure on the handle 8 is released, so that the handle 8 and the first rotating shafts 6 are reset under the action of the second springs 14, so that the ratchet wheels 7 are engaged with the pawls 15 and the latch teeth on the first support rods 3, and the moving and placing processes of the gas chromatograph main body 1 are realized.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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 portable gas chromatograph includes a gas chromatograph main body (1), characterized in that: the bottom of the inner side of the gas chromatograph main body (1) is provided with a protective cover (2), two ends of two sides in the protective cover (2) are provided with first supporting rods (3), the top of each first supporting rod (3) is provided with a first spring (5), the bottom of each first supporting rod (3) is provided with a supporting frame (4) penetrating through the bottom of the gas chromatograph main body (1), universal wheels (19) are mounted at the bottom of each supporting frame (4), one side of each first supporting rod (3) is provided with a first rotating shaft (6), two ends of the outer side of each first rotating shaft (6) are provided with ratchet wheels (7), one end of each first rotating shaft (6) is provided with a handle (8) penetrating through one end of the protective cover (2), one side of each first rotating shaft (6) far away from the handle (8) is provided with a supporting plate (11), one side of the outer side of each first rotating shaft (6) close to the supporting plate (11) is provided with idler wheels (9), one side that backup pad (11) are close to gyro wheel (9) all is provided with bearing frame (12), one side that bearing frame (12) were kept away from in backup pad (11) all is provided with second spring (14), the figure of backup pad (11) is two sets of, and two sets of backup pad (11) are through third bracing piece (13) fixed connection, the four corners department of gas chromatograph main part (1) bottom all is provided with supporting leg (18).

2. A portable gas chromatograph according to claim 1, characterized in that: the figure of ratchet (7) is four groups, and every one side at the top of ratchet (7) all is provided with pawl (15), one side that ratchet (7) were kept away from in pawl (15) all rotates with safety cover (2) through second pivot (17) and is connected, the below of second pivot (17) all is provided with flexible loop bar (16), and the top of flexible loop bar (16) all rotates with pawl (15) through the round pin axle and is connected, the outside of flexible loop bar (16) all is provided with the spring.

3. A portable gas chromatograph according to claim 1, characterized in that: the inside of bearing frame (12) all is provided with the bearing, first pivot (6) all are connected with backup pad (11) rotation through mutually supporting of bearing frame (12) and bearing.

4. A portable gas chromatograph according to claim 1, characterized in that: the number of the rollers (9) is two, and the rollers (9) are rotationally connected through a belt (10).

5. A portable gas chromatograph according to claim 1, characterized in that: one side of the first support rod (3) close to the ratchet wheel (7) is provided with a latch matched with the ratchet wheel (7), and the first support rod (3) is meshed with the ratchet wheel (7) through the latch.

6. A portable gas chromatograph according to claim 1, characterized in that: the top that ratchet (7) one side was kept away from in first bracing piece (3) all is provided with the slider, inside one side of safety cover (2) all be provided with slider assorted spout.

7. A portable gas chromatograph according to claim 1, characterized in that: the protective cover (2) is of a U-shaped structure, and two sides of the protective cover (2) are provided with box doors.