CN116817094A

CN116817094A - Chromatograph with stable support

Info

Publication number: CN116817094A
Application number: CN202211326734.XA
Authority: CN
Inventors: 朱云冲
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-09-29

Abstract

The present invention relates to a chromatograph, and more particularly, to a chromatograph with a stable support. It is desirable to design a chromatograph with a stable support that is directly stable to the chromatograph drop without waiting. A chromatograph with a stable support comprises a chromatograph, a support frame and the like, wherein the chromatograph is arranged at the top of the support frame. According to the invention, the chromatograph is placed at the designated position, the chromatograph drives the support frame to move downwards, the support frame drives the friction mechanism to move downwards to contact the ground, the friction mechanism works to provide stability, so that the chromatograph can be stably placed, and the chromatograph can be started to be used, thus the influence of random shaking of the chromatograph on the use can be avoided, and the chromatograph can be stably supported after being placed without waiting.

Description

Chromatograph with stable support

Technical Field

The present invention relates to a chromatograph, and more particularly, to a chromatograph with a stable support.

Background

The chromatograph is a device for performing chromatographic separation analysis. The system comprises a sample injection system, a detection system, a recording and data processing system, a temperature control system, a mobile phase control system and the like. Modern chromatographic instruments have the characteristics of high stability, sensitivity, versatility, automation degree and the like.

Chinese patent publication No. CN213813468U discloses a stable gas chromatograph. Comprising the following steps: the chromatograph body, the bottom of chromatograph body is provided with the base, is provided with universal pulley on the base. Locate the both sides face of chromatograph body for support the stabilising arrangement of fixed chromatograph body, stabilising arrangement includes: the chromatographic instrument comprises a support column for supporting a chromatographic instrument body, a first adjusting component arranged on the chromatographic instrument body and used for pressing down and rising one end of the support column, a second adjusting component used for expanding the support column outwards and contracting inwards, and a fixing device used for adsorbing the support column. Although the chromatograph can be stably placed and used, the chromatograph is supported and fixed by starting the second adjusting component, and a certain time is needed for the operation, so that the chromatograph can be used after being put down for a while.

The present invention is intended to solve the problems of the above-mentioned patents, and for this purpose, a chromatograph with a stable support is proposed, which is directly stably supported without waiting, while the chromatograph is put down.

Disclosure of Invention

In order to overcome the defects that the chromatograph can be stably placed and used, but the chromatograph needs to be supported and fixed by starting the operation of the second adjusting component, a certain time is needed for the operation, and a while is needed for use after the chromatograph is put down, the chromatograph with the stable support is provided, and the chromatograph is put down and directly stably supported without waiting.

The invention is realized by the following technical approaches:

the utility model provides a chromatograph with stable support, including chromatograph and support frame, the chromatograph has been placed at the support frame top, still including damping mechanism, stop gear and friction mechanism, is provided with on the support frame and carries out spacing stop gear to the chromatograph, stop gear and chromatograph contact, is provided with the damping mechanism that plays the guide effect on the support frame, is provided with the friction mechanism that is used for providing stability between damping mechanism and the support frame.

Further stated, the vibration damping mechanism comprises swinging frames, vibration damping springs, torsion springs and rollers, the swinging frames are connected to the left side and the right side of the bottom of the support frame in a front-back symmetrical rotation mode, the torsion springs are connected between the upper parts of the left side and the right side of the four swinging frames and the bottom of the support frame, the rollers with guiding functions are connected to the bottom ends of the four swinging frames in a rotation mode, and the vibration damping springs are arranged on the rollers.

Further stated, the limiting mechanism comprises a limiting frame, guide rods and first springs, three guide rods are fixedly connected to the supporting frame at equal intervals, the three guide rods are sleeved with the limiting frame for limiting the chromatograph in a front-back symmetrical sliding mode, the limiting frame is in contact with the chromatograph, the first springs are connected between the inner side faces of all the limiting frames and the inner side faces of the supporting frame, and the first springs are sleeved on the guide rods.

Further stated, the friction mechanism comprises a limiting air bag, connecting pipes, a cylinder body, piston rods and a second spring, wherein the limiting air bag is fixedly connected between the outer sides of the two front rollers, the limiting air bag used for providing stability is fixedly connected between the outer sides of the two rear rollers, the cylinder body is fixedly connected on the left side and the right side of the top of the support frame in a front-back symmetrical mode, the connecting pipes used for discharging inert gas into the limiting air bag are communicated on the four cylinder bodies, the tail ends of the two front connecting pipes are connected and communicated with the front-side limiting air bag, the tail ends of the two rear connecting pipes are connected and communicated with the rear-side limiting air bag, two piston rods are connected on the left side and the right side of the support frame in a sliding mode in a penetrating mode, the top ends of the four piston rods penetrate through the bottoms of the four cylinder bodies respectively, the piston rods are connected with the cylinder bodies in a sliding mode, and the second springs are connected between the lower parts of the four piston rods and the bottoms of the support frame.

Further, the device comprises an auxiliary supporting mechanism for providing stability, the auxiliary supporting mechanism comprises a mounting plate, compression cylinders, supporting rods, third springs and communicating pipes, the mounting plates are fixedly connected to the bottoms of the support frames in a bilateral symmetry mode, the compression cylinders are fixedly connected to the bottoms of the mounting plates on the left side and the right side, the supporting rods for providing supporting force are connected to the compression cylinders on the left side and the right side in a sliding mode, the third springs are connected between the tops of the supporting rods on the left side and the right side and the tops of the compression cylinders, and the communicating pipes are communicated between the upper portions of the compression cylinders on the left side and the right side.

Further description, still include the friction block, the rigid coupling has the friction block in the bracing piece bottom of left and right sides.

Further, the anti-collision mechanism for protecting the chromatograph is further included, the anti-collision mechanism comprises a shunt tube, a guide tube, a fixing frame and a protection air bag, the front side surface and the rear side surface of the support frame are fixedly connected with the fixing frame, the inner side surfaces of the front side and the rear side fixing frame are fixedly connected with the protection air bags for protecting the chromatograph in a bilateral symmetry manner, the shunt tube is fixedly connected in a penetrating manner in the middle of the support frame in a bilateral symmetry manner, the bottom ends of the shunt tubes on the left side and the right side penetrate through left and right mounting plates and are respectively connected and communicated with the tops of the compression cylinders on the left side and the right side, the front end and the rear end of the shunt tubes on the left side and the right side are respectively communicated with the guide tubes for discharging air into the protection air bags, and the tail ends of the four guide tubes are respectively connected and communicated with the bottoms of the four protection air bags.

Further, the synchronous mechanism for enabling the swinging frames to swing synchronously is further included, the synchronous mechanism comprises a connecting plate and a telescopic rod, the connecting plate is connected between the lower parts of the inner side faces of the swinging frames on the left side and the right side in the front in a rotating mode, the connecting plate is also connected between the lower parts of the inner side faces of the swinging frames on the left side and the right side in the rear in a rotating mode, and the telescopic rod for enabling the swinging frames to swing synchronously is connected between the middle parts of the inner side faces of the connecting plates on the front side and the rear side in a rotating mode.

Compared with the prior art, the invention has the following beneficial effects:

1. placing the chromatograph in the assigned position, the chromatograph drives the support frame and moves down, and the support frame drives friction mechanism downwardly moving, friction mechanism downwardly moving and ground contact, friction mechanism function provide stability, just so make the chromatograph stable place, can begin to use the chromatograph, so, can avoid the chromatograph to rock at will and influence the use, and just can be stably supported after the chromatograph is placed, need not to wait.

2. Under the effect of auxiliary support mechanism, whenever the chromatograph puts down, auxiliary support mechanism supports the support frame with ground contact, just also supports the chromatograph, so, can further improve the stability of chromatograph, the better of placing.

3. Under the effect of anticollision institution, whenever the chromatograph puts down, anticollision institution protects the chromatograph, so, can avoid the chromatograph to be knocked down the bad influence use in the use.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of a support frame according to the present invention.

Fig. 3 is a schematic perspective view of a vibration damping mechanism according to the present invention.

Fig. 4 is an enlarged schematic view of the portion a of the present invention.

Fig. 5 is a schematic view of a partially cut-away structure of a spacing mechanism of the present invention.

Fig. 6 is a schematic perspective view of the friction mechanism of the present invention.

Fig. 7 is a schematic view of a part of a friction mechanism of the present invention in perspective.

FIG. 8 is a schematic view of a partially cut-away structure of the auxiliary support mechanism of the present invention.

Fig. 9 is a schematic view of a partially cut-away structure of an impact mechanism of the present invention.

Fig. 10 is a schematic view of a partially cut-away structure of the synchronizing mechanism of the invention.

FIG. 11 is an enlarged schematic view of section B of the present invention.

In the reference numerals: 1_chromatograph, 2_support frame, 4_damping mechanism, 41_swing frame, 42_damping spring, 43_torsion spring, 44_roller, 5_limit mechanism, 51_limit frame, 52_guide bar, 53_first spring, 6_friction mechanism, 61_limit air bag, 62_connecting tube, 64_cylinder, 65_piston rod, 66_second spring, 7_auxiliary support mechanism, 71_mounting plate, 72_compression cylinder, 73_support rod, 74_third spring, 75_connecting tube, 76_friction block, 8_anti-collision mechanism, 81_shunt tube, 82_guide tube, 83_mount, 84_protection air bag, 9_synchronization mechanism, 91_connecting plate, 92_telescoping rod.

Detailed Description

It should be noted that in the various embodiments described, identical components are provided with identical reference numerals or identical component names, wherein the disclosure contained throughout the description can be transferred in a meaning to identical components having identical reference numerals or identical component names. The position specification, the upper, lower, lateral, etc. selected in the description are also referred to directly in the description and the figures shown and are transferred in the sense of a new position when the position is changed.

Example 1

The utility model provides a chromatograph with steady rest, including chromatograph 1, support frame 2, damping mechanism 4, stop gear 5 and friction mechanism 6, please see the fig. 1-7 and show, chromatograph 1 has been placed at support frame 2 top, be provided with stop gear 5 on the support frame 2, stop gear 5 and chromatograph 1 contact, stop gear 5 is used for spacing chromatograph 1, be provided with damping mechanism 4 on the support frame 2, damping mechanism 4 is used for playing the guide effect, be provided with friction mechanism 6 between damping mechanism 4 and the support frame 2, when friction mechanism 6 function, friction mechanism 6 can realize providing stability.

The vibration damping mechanism 4 includes a swing frame 41, a vibration damping spring 42, a torsion spring 43 and a roller 44, as shown in fig. 1, 3 and 4, the swing frames 41 are symmetrically connected on the left and right sides of the bottom of the support frame 2 in a front-back rotation manner, the torsion springs 43 are connected between the upper parts of the left and right sides of the four swing frames 41 and the bottom of the support frame 2, the roller 44 is rotatably connected at the bottom of the four swing frames 41, and when the roller 44 swings, the roller 44 is used for guiding, and the vibration damping spring 42 is arranged on the roller 44.

The limiting mechanism 5 comprises a limiting frame 51, guide rods 52 and a first spring 53, as shown in fig. 1 and 5, three guide rods 52 are uniformly arranged on the support frame 2 at intervals in a welding connection mode, the three guide rods 52 are symmetrically sleeved with the limiting frame 51 in a sliding mode, the limiting frame 51 is in contact with the chromatograph 1, the limiting frame 51 is used for limiting the chromatograph 1, the first springs 53 are connected between the inner side faces of all the limiting frames 51 and the inner side face of the support frame 2, and the first springs 53 are sleeved on the guide rods 52.

The friction mechanism 6 includes a limit air bag 61, connecting pipes 62, a cylinder 64, piston rods 65 and a second spring 66, as shown in fig. 1, 6 and 7, the limit air bag 61 is fixedly connected between the outer sides of the two front rollers 44, the limit air bag 61 is fixedly connected between the outer sides of the two rear rollers 44, when the limit air bag 61 is expanded to contact with the ground, the limit air bag 61 can provide stability, the cylinder 64 is fixedly connected on the left and right sides of the top of the support frame 2 in a front-back symmetrical manner, the connecting pipes 62 are communicated with the four cylinders 64, the tail ends of the two front connecting pipes 62 are connected and communicated with the front limit air bag 61, the tail ends of the two rear connecting pipes 62 are connected and communicated with the rear limit air bag 61, when inert gas is discharged into the connecting pipes 62, the inert gas is discharged into the limit air bag 61, the two piston rods 65 are slidably connected on the left and right sides of the support frame 2, the top ends of the four piston rods 65 penetrate the bottoms of the four cylinders 64 respectively, the piston rods 65 are slidably connected with the cylinder 64, and the second spring 66 is connected between the lower parts of the four piston rods 65 and the bottom of the support frame 2.

When the chromatograph 1 is required to be used, the device is placed at a designated position, the chromatograph 1 is loosened, the chromatograph 1 drives the support frame 2 to move downwards due to the weight of the chromatograph 1, the support frame 2 moves downwards to drive the vibration damping mechanism 4 to operate, the vibration damping mechanism 4 operates to support and guide the chromatograph 1 to move downwards through the support frame 2, the support frame 2 moves downwards to drive the friction mechanism 6 to move downwards, the friction mechanism 6 starts to operate when the friction mechanism 6 moves downwards to be in contact with the ground, when the chromatograph 1 moves downwards to a proper position, the vibration damping mechanism 4 stops operating, the chromatograph 1 stops moving downwards, the support frame 2 stops driving the friction mechanism 6 to operate, friction force is provided by the friction mechanism 6 and the ground contact, the friction mechanism 6 enables the device to be placed more stably, and the chromatograph 1 can be used, so that random shaking of the chromatograph 1 can be avoided. When the chromatograph 1 is used up and needs to move, the chromatograph 1 is lifted up to drive the support frame 2 to move upwards, the support frame 2 moves upwards to drive the vibration reduction mechanism 4 to operate and reset, meanwhile, the support frame 2 also drives the friction mechanism 6 to operate and reset, the friction mechanism 6 operates and resets to be separated from the ground, and when an operator moves the chromatograph 1, the vibration reduction mechanism 4 is separated from the ground.

When the chromatograph 1 is required to be used, the chromatograph 1 is placed at a designated position, the chromatograph 1 is loosened, the chromatograph 1 drives the support frame 2 to move downwards due to the weight of the chromatograph 1, the support frame 2 moves downwards to drive the four swinging frames 41 to move downwards, the four swinging frames 41 move downwards to drive the four rollers 44 to move downwards, the four rollers 44 move downwards to contact the ground, the support frame 2 moves downwards to drive the four swinging frames 41 to swing outwards, all torsion springs 43 are compressed, the four swinging frames 41 swing outwards to drive the four rollers 44 to swing outwards, the four rollers 44 swing outwards to guide the chromatograph 1, meanwhile, the support frame 2 moves downwards to drive the friction mechanism 6 to operate, the friction mechanism 6 operates to provide stability to contact the ground, so that the chromatograph 1 is more stable, the support frame 2 stops driving the four swinging frames 41 to swing outwards, and the four rollers 44 stop swinging outwards, and the chromatograph 1 can be started to be used. When the chromatograph 1 needs to be moved, the chromatograph 1 is lifted, the support frame 2 drives the four swinging frames 41 to move upwards, the four swinging frames 41 move upwards to drive the four rollers 44 to move upwards, the four rollers 44 move upwards to be separated from contact with the ground, and the four swinging frames 41 swing inwards to reset under the action of all torsion springs 43.

Initially, all the first springs 53 are in a stretched state, and when the chromatograph 1 is used, the chromatograph 1 is limited by the six limiting frames 51, so that the chromatograph 1 is placed more firmly, and the chromatograph 1 can be started to be used. When the chromatograph 1 needs to be disassembled for maintenance, the chromatograph 1 can be disassembled, the chromatograph 1 is separated from the six limiting frames 51, and the six limiting frames 51 move inwards by a certain distance under the action of all the first springs 53. After the chromatograph 1 is maintained, the chromatograph 1 is put back on the support frame 2, the chromatograph 1 drives the six limiting frames 51 to move outwards, all the first springs 53 are stretched, and the six limiting frames 51 limit the chromatograph 1.

When the support frame 2 moves downwards, the support frame 2 drives the four piston rods 65 to move downwards through the four second springs 66, when the four piston rods 65 move downwards to contact the ground, the four piston rods 65 are limited, the support frame 2 continues to move downwards so that the four second springs 66 are compressed, meanwhile, the support frame 2 moves downwards to drive the four cylinder bodies 64 to move downwards, the four piston rods 65 push inert gas in the four cylinder bodies 64, the inert gas in the four cylinder bodies 64 is discharged into the four connecting pipes 62, the inert gas in the four connecting pipes 62 is discharged into the front and rear limit air bags 61, the front and rear limit air bags 61 expand continuously along with the discharge of the inert gas, when the front and rear limit air bags 61 expand to contact the ground, friction force is provided between the front and rear limit air bags 61 and the ground, stability is also provided, the front and rear limit air bags 61 stop moving outwards, the support frame 2 also stops moving downwards, and the chromatograph 1 can be started to be used. When the chromatograph 1 needs to move, the chromatograph 1 is taken up, the support frame 2 moves upwards to drive the four cylinder bodies 64 to move upwards, meanwhile, the support frame 2 also drives the four piston rods 65 to move upwards through the four second springs 66, the four piston rods 65 move upwards to be separated from the ground, and under the action of the four second springs 66, the four piston rods 65 move downwards to reset inert gas in the front and rear side limiting air bags 61 to be pumped back into the four cylinder bodies 64 through the four connecting pipes 62, and the front and rear side limiting air bags 61 shrink to reset to be separated from the ground along with the inert gas being pumped away. Thus, the chromatograph 1 can be placed more stably without affecting the use.

Example 2

On the basis of embodiment 1, the auxiliary supporting mechanism 7 is further included, the auxiliary supporting mechanism 7 comprises a mounting plate 71, a compression cylinder 72, a supporting rod 73, a third spring 74 and a communicating pipe 75, as shown in fig. 1 and 8, the mounting plate 71 is mounted on the bottom of the supporting frame 2 in a laterally symmetrical mode through a bolt connection mode, the compression cylinder 72 is fixedly connected in the middle of the bottoms of the mounting plates 71 on the left side and the right side, the supporting rod 73 is connected in the compression cylinder 72 on the left side and the right side in a sliding mode, when the supporting rod 73 is in contact with the ground, the supporting rod 73 can provide supporting force, the third spring 74 is connected between the top ends of the supporting rods 73 on the left side and the top ends of the compression cylinder 72 on the right side, and the communicating pipe 75 is communicated between the upper parts of the compression cylinders 72 on the left side and the right side.

Still include friction block 76, please refer to fig. 8, the friction block 76 is installed to the bottom of left and right sides bracing piece 73 through welded connection's mode.

The anti-collision mechanism 8 comprises a shunt tube 81, a conduit 82, a fixing frame 83 and a protection air bag 84, as shown in fig. 1 and 9, the fixing frame 83 is mounted on the front side and the rear side of the support frame 2 in a welded connection mode, the protection air bag 84 is fixedly connected on the inner side face of the front side and the rear side of the fixing frame 83 in a bilateral symmetry mode, when the protection air bag 84 is expanded to be in contact with the chromatograph 1, the protection air bag 84 can realize protection of the chromatograph 1, the shunt tube 81 is fixedly connected on the middle of the support frame 2 in a bilateral symmetry mode, the bottom ends of the shunt tubes 81 on the left side and the right side penetrate through the left mounting plate 71 and are respectively connected and communicated with the tops of the compression cylinders 72 on the left side and the right side, the front end and the rear end of the shunt tube 81 on the left side are respectively connected and communicated with the bottoms of the four protection air bags 84, and when air is discharged into the conduit 82, the conduit 82 can realize air discharge into the protection air bag 84.

When the support frame 2 moves downwards, the support frame 2 further drives the left and right mounting plates 71 to move downwards, the left and right mounting plates 71 move downwards to drive the left and right compression cylinders 72 to move downwards, the left and right compression cylinders 72 move downwards to drive the left and right support rods 73 to move downwards through the left and right third springs 74, the left and right support rods 73 move downwards to drive the left and right friction blocks 76 to move downwards, and when the left and right friction blocks 76 move downwards to contact the ground, the left and right friction blocks 76 provide friction force, and due to the action of the left and right third springs 74, the left and right support rods 73 support and buffer the support frame 2, so that the chromatograph 1 is supported and buffered, and due to the action of the friction blocks 76, the left and right support rods 73 can support the support frame 2 more firmly. When an operator picks up the chromatograph 1, the support frame 2 moves upwards to drive the left and right mounting plates 71 to move upwards, the left and right mounting plates 71 move upwards to drive the left and right compression cylinders 72 to move upwards, and the left and right compression cylinders 72 move upwards to drive the left and right support rods 73 to move upwards to drive the left and right friction blocks 76 to move upwards and separate from the ground through the left and right third springs 74. Thus, the stability of the chromatograph 1 can be further improved, and the placement is better.

When the support frame 2 moves downwards, the left and right friction blocks 76 move downwards to contact with the ground, the ground faces the left and right friction blocks 76 to limit, the left and right support rods 73 are limited by the limit of the left and right friction blocks 76, the left and right compression cylinders 72 continue to move downwards to compress the left and right third springs 74, the left and right support rods 73 push air in the left and right compression cylinders 72 into the left and right shunt tubes 81 along with the downward movement of the left and right compression cylinders 72, the air in the left and right shunt tubes 81 is discharged into the four guide tubes 82, the air in the four guide tubes 82 is discharged into the four protection air bags 84, the four protection air bags 84 are continuously inflated along with the air discharge, and the chromatograph 1 can be started to be used. When the chromatograph 1 needs to be used, the chromatograph 1 is lifted, the support frame 2 drives the left and right compression cylinders 72 to move upwards and reset through the left and right mounting plates 71, the left and right compression cylinders 72 move upwards to enable the left and right third springs 74 to stretch and reset, the left and right support rods 73 pump air in the four protection air bags 84 back into the left and right compression cylinders 72 through the four guide pipes 82 and the two shunt pipes 81 along with the upward movement of the left and right compression cylinders 72, the four protection air bags 84 continuously shrink and reset along with the continuous pumping of the air back into the left and right compression cylinders 72, and the four protection air bags 84 are separated from contact with the chromatograph 1. Thus, the chromatograph 1 can be prevented from being knocked and damaged in the use process.

Example 3

On the basis of embodiment 1 and embodiment 2, the swing mechanism further comprises a synchronization mechanism 9, the synchronization mechanism 9 comprises a connecting plate 91 and a telescopic rod 92, as shown in fig. 1, 10 and 11, the connecting plate 91 is rotatably connected between the lower parts of the inner side surfaces of the front left and right swing frames 41, the connecting plate 91 is rotatably connected between the lower parts of the inner side surfaces of the rear left and right swing frames 41, the telescopic rod 92 is rotatably connected between the middle parts of the inner side surfaces of the front and rear two side connecting plates 91, and the telescopic rod 92 is used for enabling the swing frames 41 to swing synchronously.

When the four swing frames 41 swing outwards, the four swing frames 41 swing outwards to drive the front and rear side connecting plates 91 to swing outwards, the front and rear side connecting plates 91 swing outwards to enable the telescopic rods 92 to stretch, and due to the action of the telescopic rods 92, the front and rear side connecting plates 91 enable the four swing frames 41 to swing outwards synchronously. When the four swinging frames 41 swing inwards to reset, the four swinging frames 41 drive the front and rear connecting plates 91 to swing inwards to reset, and the front and rear connecting plates 91 swing inwards to reset so that the telescopic rod 92 contracts to reset. Thus, the four swing frames 41 can swing synchronously, and the influence of different swinging time on the supporting guide is avoided.

Finally, it is necessary to state that: the foregoing is provided to assist in understanding the technical solutions of the present invention, and is not to be construed as limiting the scope of protection of the present invention; insubstantial modifications and variations from the above teachings are within the scope of the invention as claimed.

Claims

1. Chromatograph with steady rest, including chromatograph (1) and support frame (2), chromatograph (1) has been placed at support frame (2) top, a serial communication port, still including damping mechanism (4), stop gear (5) and friction mechanism (6), be provided with on support frame (2) and carry out spacing stop gear (5) to chromatograph (1), stop gear (5) and chromatograph (1) contact, be provided with damping mechanism (4) that play the guide effect on support frame (2), be provided with between damping mechanism (4) and support frame (2) and be used for providing friction mechanism (6) of stability.

2. The chromatograph with stable support according to claim 1, characterized in that the vibration damping mechanism (4) comprises a swinging frame (41), vibration damping springs (42), torsion springs (43) and rollers (44), the swinging frames (41) are symmetrically and rotationally connected on the left side and the right side of the bottom of the support frame (2), the torsion springs (43) are connected between the upper parts of the left side and the right side of the four swinging frames (41) and the bottom of the support frame (2), the rollers (44) with guiding function are rotationally connected at the bottom ends of the four swinging frames (41), and the vibration damping springs (42) are arranged on the rollers (44).

3. The chromatograph with stable support according to claim 2, characterized in that the limiting mechanism (5) comprises a limiting frame (51), guide rods (52) and a first spring (53), three guide rods (52) are fixedly connected on the support frame (2) at equal intervals, the three guide rods (52) are sleeved with the limiting frame (51) for limiting the chromatograph (1) in a front-back symmetrical sliding mode, the limiting frame (51) is in contact with the chromatograph (1), the first springs (53) are connected between the inner side faces of all the limiting frames (51) and the inner side faces of the support frame (2), and the first springs (53) are sleeved on the guide rods (52).

4. The chromatograph with stable support according to claim 3, wherein the friction mechanism (6) comprises a limiting air bag (61), connecting pipes (62), a cylinder body (64), piston rods (65) and a second spring (66), wherein the limiting air bag (61) is fixedly connected between the outer sides of the two front rollers (44), the limiting air bag (61) for providing stability is fixedly connected between the outer sides of the two rear rollers (44), the cylinder body (64) is fixedly connected on the left side and the right side of the top of the support frame (2) in a front-back symmetrical mode, connecting pipes (62) for discharging inert gas into the limiting air bag (61) are communicated on the four cylinder bodies (64), the tail ends of the two connecting pipes (62) on the front side are connected and communicated with the limiting air bag (61) on the front side, the tail ends of the two connecting pipes (62) on the rear side are connected and communicated with the limiting air bag (61) on the rear side, two piston rods (65) are connected in a sliding mode on the left side and the right side of the support frame (2), the top ends of the four piston rods (65) penetrate through the bottoms of the four cylinder bodies (64) respectively, the piston rods (65) are connected with the bottoms of the cylinder bodies (64) in a sliding mode, and the bottoms of the two piston rods (65) are connected with the bottom of the second spring (66).

5. The chromatograph with stable support according to claim 4, further comprising an auxiliary supporting mechanism (7) for providing stability, wherein the auxiliary supporting mechanism (7) comprises a mounting plate (71), a compression cylinder (72), a supporting rod (73), a third spring (74) and a communicating pipe (75), the mounting plate (71) is fixedly connected at the left and right sides of the bottom of the support frame (2), the compression cylinder (72) is fixedly connected in the middle of the bottom of the mounting plate (71) at the left and right sides, the supporting rod (73) for providing supporting force is connected in the compression cylinder (72) at the left and right sides in a sliding manner, the third spring (74) is connected between the top ends of the supporting rods (73) at the left and right sides and the inner top of the compression cylinder (72), and the communicating pipe (75) is communicated between the upper parts of the compression cylinder (72) at the left and right sides.

6. The chromatograph with the stable support according to claim 5, further comprising a friction block (76), wherein the friction blocks (76) are fixedly connected to the bottom ends of the left and right support rods (73).

7. The chromatograph with stable support according to claim 6, further comprising an anti-collision mechanism (8) for protecting the chromatograph (1), wherein the anti-collision mechanism (8) comprises a shunt tube (81), a conduit (82), a fixing frame (83) and a protection air bag (84), the fixing frame (83) is fixedly connected to the front side and the rear side of the support frame (2), the protection air bag (84) for protecting the chromatograph (1) is fixedly connected to the inner side of the fixing frame (83) in a bilateral symmetry manner, the shunt tube (81) is fixedly connected to the middle part of the support frame (2) in a bilateral symmetry manner in a penetrating manner, the bottom ends of the shunt tubes (81) on the left side and the right side penetrate through left and right mounting plates (71) to be connected and communicated with the tops of the compression cylinders (72) on the left side and the right side respectively, the conduit (82) for discharging air into the protection air bag (84) are connected to the front end and the rear end of the four conduits (82) to be connected and communicated with the bottoms of the four protection air bags (84) respectively.

8. The chromatograph with a stable bracket according to claim 7, further comprising a synchronizing mechanism (9) for synchronizing the swinging frames (41), wherein the synchronizing mechanism (9) comprises a connecting plate (91) and a telescopic rod (92), the connecting plate (91) is rotatably connected between the lower parts of the inner side surfaces of the front left and right swinging frames (41), the connecting plate (91) is rotatably connected between the lower parts of the inner side surfaces of the rear left and right swinging frames (41), and the telescopic rod (92) for synchronizing the swinging frames (41) is rotatably connected between the middle parts of the inner side surfaces of the front and rear side connecting plates (91).