CN213022999U

CN213022999U - Automatic sample introduction device for ion chromatography detection

Info

Publication number: CN213022999U
Application number: CN202022149285.9U
Authority: CN
Inventors: 孙旸
Original assignee: Nanjing Liankai Environmental Inspection Technology Co ltd
Current assignee: Nanjing Liankai Environmental Inspection Technology Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-04-20
Anticipated expiration: 2030-09-27

Abstract

The utility model discloses an automatic sampling device that ion chromatography detected usefulness relates to ion chromatography sampling device technical field, places for solving current sampling device and lacks the mechanism fixed to the sampling tube, leads to the sampling tube to place unstable inadequately, and askew problem is inserted easily to the syringe needle. The utility model discloses a bearing structure of a motor vehicle, including base, carousel, spliced pole, spacing dish, chuck, transmission shaft and driving motor, the top of base is installed and is placed the mechanism, place the mechanism and include base, carousel, spliced pole, spacing dish, chuck, transmission shaft and driving motor, the inside of spacing dish is provided with the mounting groove, and the mounting groove is provided with a plurality of, the chuck sets up in the inside of mounting groove, and the inside of a mounting groove is provided with four chucks, four the chuck encloses into a circumference, the chuck includes the spring, supports the interior pad of board and rubber, support the board and set up in the one end of spring, support the board and keep away from one side of spring and rubber interior pad and glue.

Description

Automatic sample introduction device for ion chromatography detection

Technical Field

The utility model relates to an ion chromatography examines sampling device technical field, specifically is an automatic sampling device that ion chromatography detected usefulness.

Background

Ion chromatography is one of high performance liquid chromatography, so it is also called high performance ion chromatography or modern ion chromatography, and it is different from traditional ion exchange chromatography column chromatography mainly because the resin has high crosslinking degree and low exchange capacity. The sample introduction device is an accessory device in the ion chromatograph, and the related accessory device further comprises a pipeline cleaning device, an online degassing device and the like. Along with the development of science and technology, the sampling device that current ion chromatograph used is automatic sampler mostly, will advance the appearance pipe and place on can the pivoted carousel, when the carousel drove the appearance pipe and rotate a certain position and be, utilizes adjustment mechanism to drive the needle tubing and descend, utilizes the drawing liquid pump to drive the needle tubing with the inside liquid of sampling tube and takes out, then carries into in the ion chromatograph behind the six-way valve to carry out the conductance detection to the sample.

However, the existing sample introduction device is lack of a mechanism for fixing the sample introduction tube, so that the sample introduction tube is not stably placed, and the needle tube is easy to insert askew, so that the existing requirements are not met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic sampling device that ion chromatography detected usefulness to the sampling device who proposes places and lacks the mechanism fixed to the sampling tube in solving above-mentioned background art, leads to the sampling tube to place and is stable inadequately, and askew problem is inserted easily to the syringe.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic sample introduction device for ion chromatography detection comprises a base, wherein a placing mechanism is installed above the base and comprises a base, a turntable, a connecting column, a limiting disc, chucks, a transmission shaft and a driving motor, a mounting groove is formed in the limiting disc and provided with a plurality of parts, the chucks are arranged in the mounting groove, four chucks are arranged in the mounting groove and surround a circumference, each chuck comprises a spring, a supporting plate and a rubber inner pad, the supporting plate is arranged at one end of the spring, one side of the supporting plate, far away from the spring, is connected with the rubber inner pad in a gluing manner, two ends of the spring are respectively fixedly connected with the supporting plate and the limiting disc, a supporting frame is installed on one side of the placing mechanism, an air cylinder is installed in the supporting frame, a fixing plate is arranged at the lower end of the air cylinder, and a needle tube is installed at one end, far away from the air cylinder, and a liquid pump is installed on one side of the top of the support frame, and the input end of the liquid pump is connected with the needle tube through a hose.

Preferably, the carousel sets up in the top of base, one side and spliced pole fixed connection that the base was kept away from to the carousel, carousel one end and spacing dish fixed connection that the spliced pole was kept away from, transmission shaft and driving motor all set up in the inside of base, and driving motor is located one side of transmission shaft, the transmission shaft upper end run through the base and with carousel fixed connection.

Preferably, the rubber base mat is installed at the top of carousel, and the rubber base mat is provided with a plurality of, the inside of the bottom embedding carousel of rubber base mat to be connected with the carousel cementing, the inside of rubber base mat is provided with the spacing groove.

Preferably, the number of the rubber bottom cushions is the same as that of the mounting grooves, and the rubber bottom cushions are positioned under the mounting grooves.

Preferably, the externally mounted of driving motor output has bevel pinion, the externally mounted of transmission shaft has bevel pinion, and bevel pinion meshes with bevel pinion and is connected, the transmission shaft passes through the bearing with the base and rotates and be connected.

Preferably, a sliding rod is installed between the needle tube and the air cylinder, penetrates through the fixing plate and is in sliding connection with the fixing plate through a sliding sleeve.

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

1. the utility model discloses an inside of every mounting groove of spacing dish all is furnished with four chucks, can fix the sampling pipe through four chucks, the chuck is by the spring, support the board and fill up in the rubber and constitute, utilize the flexible and ability of recovering the deformation of spring, it is hugged closely with the sampling pipe to enable four to fill up in board area rubber, guarantee fixed fastness, and then avoid the needle tubing to insert askewly, the clamping mode is swift simultaneously, convenient to detach, the flexibility of use is high, applicable in the sampling pipe of fixed different diameter sizes.

2. The utility model discloses a pad in the inboard installation rubber of support board, a rubber heelpiece is all installed to below through every mounting groove, utilizes the high damping nature of rubber material, can play good buffering, shock attenuation effect, and then protects the sampling pipe, avoids the sampling pipe to damage, and the inside of rubber heelpiece sets up the spacing groove, and the lower extreme extensible of sampling pipe is further spacing to the sampling pipe in to the spacing groove, guarantees the stability of sampling pipe installation.

Drawings

Fig. 1 is a top view of the limiting plate of the present invention;

FIG. 2 is a partial enlarged view of region A of the present invention;

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

fig. 4 is a schematic structural view of the rubber base mat of the present invention.

In the figure: 1. a base; 2. a placement mechanism; 3. a base; 4. a turntable; 41. a rubber bottom pad; 411. a limiting groove; 5. connecting columns; 6. a limiting disc; 61. mounting grooves; 7. a chuck; 71. a spring; 72. a resisting plate; 73. a rubber inner pad; 8. a drive shaft; 9. a drive motor; 10. a support frame; 11. a cylinder; 12. a fixing plate; 13. a needle tube; 14. a slide bar; 15. and (4) a liquid pump.

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.

Referring to fig. 1-4, the present invention provides an embodiment: an automatic sample introduction device for ion chromatography detection comprises a base 1, a placement mechanism 2 is installed above the base 1, the placement mechanism 2 comprises a base 3, a rotary table 4, a connecting column 5, a limiting disc 6, chucks 7, a transmission shaft 8 and a driving motor 9, a plurality of mounting grooves 61 are arranged inside the limiting disc 6, the chucks 7 are arranged inside the mounting grooves 61, four chucks 7 are arranged inside one mounting groove 61, the four chucks 7 surround a circumference, the four chucks 7 are uniformly distributed around the outer portion of a sample inlet tube to ensure the stability of sample inlet tube clamping, each chuck 7 comprises a spring 71, a support plate 72 and a rubber inner pad 73, the support plate 72 is arranged at one end of the spring 71, one side of the support plate 72, which is far away from the spring 71, is connected with the rubber inner pad 73 in a gluing manner, the connection strength is high, two ends of the spring 71 are respectively fixedly connected with the support plate 72 and the limiting disc 6, place one side of mechanism 2 and install support frame 10, the internally mounted of support frame 10 has cylinder 11, there is fixed plate 12 cylinder 11's lower extreme, can weld the connection or pass through bolted connection, fixed plate 12 is kept away from the one end of cylinder 11 and is installed needle tubing 13, drawing liquid pump 15 is installed to one side at support frame 10 top, drawing liquid pump 15 passes through screw connection with support frame 10, and drawing liquid pump 15's input passes through the hose connection with needle tubing 13 for the transport of advance appearance liquid.

Further, carousel 4 sets up in the top of base 3, one side and the 5 fixed connection of spliced pole that base 3 was kept away from to carousel 4, 4 one ends of carousel and the 6 fixed connection of spacing dish that spliced pole 5 kept away from, transmission shaft 8 and driving motor 9 all set up in the inside of base 3, and driving motor 9 is located one side of

transmission shaft

8, 8 upper ends of transmission shaft run through base 3 and with 4 fixed connection of carousel, drive carousel 4 through transmission shaft 8 and rotate.

Further, rubber heelpiece 41 is installed at the top of carousel 4, and rubber heelpiece 41 is provided with a plurality of, the inside of the bottom embedding carousel 4 of rubber heelpiece 41 to be connected with 4 splices of carousel, joint strength is high, the frivolous stealthy of junction, it is fixed firm, the inside of rubber heelpiece 41 is provided with spacing groove 411, the lower extreme of advance appearance pipe extends to spacing groove 411, carry on spacingly to advance appearance pipe through spacing groove 411, guarantee the stability that advance appearance pipe placed.

Further, the quantity that rubber heelpiece 41 set up is the same with the quantity that mounting groove 61 set up, and rubber heelpiece 41 is located mounting groove 61 under for the bottom of accepting the sample bottle protects the sample bottle, damages under the punching press of needle tubing 13 with preventing the sample bottle.

Further, the externally mounted of driving motor 9 output has bevel pinion, and the externally mounted of transmission shaft 8 has bevel pinion, and bevel pinion meshes with be connected, converts the rotation on the horizontal direction to the rotation on the vertical direction, and transmission efficiency is just steady, and transmission shaft 8 passes through the bearing rotation with base 3 and is connected, and the transmission shaft 8 of being convenient for rotates.

Further, a sliding rod 14 is installed between the needle tube 13 and the cylinder 11, the sliding rod 14 can provide support for the fixing plate 12, the support stability of the fixing plate 12 is guaranteed, the sliding rod 14 penetrates through the fixing plate 12 and is in sliding connection with the fixing plate 12 through a sliding sleeve, the friction force of the joint is small, and the fixing plate 12 is convenient to move.

The working principle is as follows: during the use, put into the mounting groove 61 of spacing dish 6 with the sampling tube, the body of sampling tube extrudes into between four chucks 7, its lower extreme inserts in the spacing groove 411 of rubber heelpiece 41, it is further spacing to the sampling tube through spacing groove 411, guarantee the stability of sampling tube installation, spring 71 atress on the chuck 7 produces the compression, the circumference grow that four are supported the board 72 and enclose, simultaneously spring 71 will produce reaction force for recovering to warp, and then promote to support the board 72 and inboard rubber inner pad 73 and hug closely with the sampling tube, realize fixing to the sampling tube from this. The rubber material adopted by the rubber bottom pad 41 and the rubber inner pad 73 has high damping performance, and can play a good role in buffering and damping, so that the sampling tube can be protected, and the damage to the sampling tube is avoided. The driving motor 9 is started, the output end of the driving motor 9 drives the small bevel gear to rotate, due to the meshing effect of the small bevel gear and the large bevel gear, the large bevel gear can rotate along with the small bevel gear, the transmission shaft 8 fixed with the large bevel gear and other parts fixed with the transmission shaft 8 rotate along with the small bevel gear, and the sample inlet pipe is rotated to be right below the needle tube 13. The output end of the liquid pump 15 is connected with a six-way valve of the ion chromatograph through a hose. The lower end of the cylinder 11 extends to drive the fixing plate 12 and the needle tube 13 fixed with the fixing plate 12 to move downwards, so that the lower end of the needle tube 13 is inserted into the sample inlet tube, the liquid pump 15 is started, a sample in the sample inlet tube is extracted through the needle tube 13, and is input into the six-way valve through the output end of the liquid pump 15, and is conveyed into the ion chromatograph through the six-way valve for detection.

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. The utility model provides an autoinjection device that ion chromatography detected usefulness, includes base (1), its characterized in that: the placing mechanism (2) is installed above the base (1), the placing mechanism (2) comprises a base (3), a turntable (4), a connecting column (5), a limiting disc (6), chucks (7), a transmission shaft (8) and a driving motor (9), a plurality of mounting grooves (61) are formed in the limiting disc (6), the chucks (7) are arranged in the mounting grooves (61), four chucks (7) are arranged in one mounting groove (61), a circumference is enclosed by the four chucks (7), each chuck (7) comprises a spring (71), a supporting plate (72) and a rubber inner pad (73), the supporting plate (72) is arranged at one end of the spring (71), one side, far away from the spring (71), of the supporting plate (72) is connected with the rubber inner pad (73) in a bonding manner, two ends of the spring (71) are respectively fixedly connected with the supporting plate (72) and the limiting disc (6), support frame (10) are installed to one side of placing mechanism (2), the internally mounted of support frame (10) has cylinder (11), there is fixed plate (12) lower extreme of cylinder (11), needle tubing (13) are installed to the one end that cylinder (11) were kept away from in fixed plate (12), drawing liquid pump (15) are installed to one side at support frame (10) top, and the input of drawing liquid pump (15) passes through the hose connection with needle tubing (13).

2. The automatic sample introduction device for ion chromatography detection according to claim 1, characterized in that: carousel (4) set up in the top of base (3), one side and spliced pole (5) fixed connection of base (3) are kept away from in carousel (4), carousel (4) one end and spacing dish (6) fixed connection that spliced pole (5) were kept away from, transmission shaft (8) and driving motor (9) all set up in the inside of base (3), and driving motor (9) are located one side of transmission shaft (8), transmission shaft (8) upper end run through base (3) and with carousel (4) fixed connection.

3. The automatic sample introduction device for ion chromatography detection according to claim 1, characterized in that: rubber heelpiece (41) are installed at the top of carousel (4), and rubber heelpiece (41) are provided with a plurality of, the inside of the bottom embedding carousel (4) of rubber heelpiece (41) to be connected with carousel (4) cementing, the inside of rubber heelpiece (41) is provided with spacing groove (411).

4. The automatic sample introduction device for ion chromatography detection according to claim 3, characterized in that: the number that rubber heelpiece (41) set up is the same with the number that mounting groove (61) set up, and rubber heelpiece (41) are located mounting groove (61) under.

5. The automatic sample introduction device for ion chromatography detection according to claim 1, characterized in that: the external mounting of driving motor (9) output has bevel pinion, the external mounting of transmission shaft (8) has bevel pinion greatly, and bevel pinion greatly is connected with bevel pinion meshing, transmission shaft (8) are connected through the bearing rotation with base (3).

6. The automatic sample introduction device for ion chromatography detection according to claim 1, characterized in that: a sliding rod (14) is installed between the needle tube (13) and the air cylinder (11), and the sliding rod (14) penetrates through the fixing plate (12) and is in sliding connection with the fixing plate (12) through a sliding sleeve.