CN214953275U

CN214953275U - Automatic sample introduction device of liquid chromatograph

Info

Publication number: CN214953275U
Application number: CN202121389332.5U
Authority: CN
Inventors: 王苗; 刘鹏
Original assignee: Shanghai Dezuo Industrial Co ltd
Current assignee: Shanghai Dezuo Industrial Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-11-30
Anticipated expiration: 2031-06-22

Abstract

The utility model discloses a liquid chromatograph autoinjection device, which comprises a bod, the control end is installed to one side of organism, and the inside bottom of organism installs the motor, the top of motor is connected with the dwang, and the top fixedly connected with carousel of dwang, a plurality of logical grooves have been seted up on the top of carousel, the inside top of organism is connected with the telescopic link, and the surface of telescopic link is connected with anchor clamps, the surface connection of anchor clamps has the cylinder. The utility model discloses in, under stop gear's effect, through pressing the connecting plate, connecting pipe and the stripper bar that can make the connecting plate connect move, the arc of being convenient for connect through the stripper bar is spacing to leading to the inside test tube of groove, prevent that the cylinder from when the operation, the test tube appears removing, influence its subsequent use, can make it drive the spheroid through rotating the bolt simultaneously and move, be convenient for remove its inside to the recess, be convenient for carry on spacingly to connecting pipe, stripper bar and arc.

Description

Automatic sample introduction device of liquid chromatograph

Technical Field

The utility model relates to a liquid chromatograph technical field especially relates to a liquid chromatograph autoinjection device.

Background

The liquid chromatograph is an instrument which firstly separates a mixture and then analyzes and identifies the mixture by utilizing the difference of the distribution ratio of the mixture between two liquids which are liquid, solid or immiscible, and the interior of the instrument consists of a liquid storage device, a pump, a sample injector, a chromatographic column, a detector, a recorder and the like.

When the automatic sample introduction device of the existing liquid chromatograph is used, the needle heads are exposed outside for a long time, so that external dust or other impurities are easily attached, certain influence is easily caused on subsequent use of the automatic sample introduction device, and the practicability is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the needle head of the existing automatic sample feeding device of the liquid chromatograph is exposed outside for a long time when in use, easily leads to the outside dust or other sundries to be stained with, easily causes certain influence on the subsequent use, has lower practicability and provides the automatic sample feeding device of the liquid chromatograph.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an automatic sample introduction device of a liquid chromatograph comprises a machine body, wherein a control end is installed on one side of the machine body, a motor is installed at the bottom end of the interior of the machine body, a rotating rod is connected to the top end of the motor, a rotating disc is fixedly connected to the top end of the rotating rod, a plurality of through grooves are formed in the top end of the rotating disc, a telescopic rod is connected to the top end of the interior of the machine body, a clamp is connected to the surface of the telescopic rod, a needle cylinder is connected to the surface of the clamp, a push rod is connected to the top end of the needle cylinder, a limiting mechanism is installed in the rotating disc, a connecting pipe is arranged in the limiting mechanism, the connecting pipe is movably sleeved with one side of the rotating disc, a first spring is connected to the interior of the connecting pipe, an extrusion rod is connected to one side of the first spring, the extrusion rod is movably connected with the interior of the rotating disc, and an arc-shaped plate is connected to one side of the extrusion rod, and be connected between the inner wall one side of arc and logical groove, one side of carousel is connected with the recess, one side of connecting pipe is connected with the connecting plate, and one side threaded connection of connecting plate has the bolt, the bottom of bolt is connected with the spheroid, and is connected for relatively between the inside of spheroid and recess, complementary unit is installed to one side of organism.

As a further description of the above technical solution:

the carousel passes through to constitute rotating-structure between dwang and the motor, the cylinder passes through to constitute elevation structure between anchor clamps and the telescopic link.

As a further description of the above technical solution:

the extrusion rod and the connecting pipe form an elastic structure through the first spring, and the bolt and the groove form a clamping structure through the ball.

As a further description of the above technical solution:

the inside of complementary unit is including the sleeve pipe, and is connected between the inner wall one side of sleeve pipe and organism, the hole groove has been seted up to sheathed tube one side, and sheathed tube inner wall one side is connected with the spout, the slider has been cup jointed in the inside activity of spout, and one side of slider is connected with the connecting rod, the opposite side of connecting rod is connected with the barrel, and the internal connection of barrel has the second spring, one side of second spring is connected with the gag lever post, and cup joints for the activity between the inside of gag lever post and hole groove, one side of connecting rod is connected with the cleaning block.

As a further description of the above technical solution:

the connecting rod passes through to constitute sliding structure between slider and the spout, the gag lever post is T shape.

As a further description of the above technical solution:

the limiting rod forms an elastic structure with the barrel through the second spring, and the limiting rod forms a clamping structure with the sleeve through the hole groove.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, under stop gear's effect, through pressing the connecting plate, connecting pipe and the stripper bar that can make the connecting plate connect move, the arc of being convenient for connect through the stripper bar is spacing to leading to the inside test tube of groove, prevent that the cylinder from when the operation, the test tube appears removing, influence its subsequent use, can make it drive the spheroid through rotating the bolt simultaneously and move, be convenient for remove its inside to the recess, be convenient for carry on spacingly to connecting pipe, stripper bar and arc.

2. The utility model discloses in, under complementary unit's effect, through the inside with the gag lever post extrusion hole groove, can make its inside connecting rod move in the inside of spout through the slider, be convenient for remove appointed position with the cleaning block that the connecting rod is connected, the syringe needle of being convenient for can accomodate it in the inside of cleaning block when not using, prevents to expose outside for a long time, influences its subsequent use.

Drawings

Fig. 1 is a schematic structural view of an automatic sample introduction device of a liquid chromatograph according to the present invention;

FIG. 2 is a front view of the structure of the middle body of the present invention;

fig. 3 is a schematic view of the top view structure of the transfer plate part of the present invention:

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

fig. 5 is a schematic view of the internal structure of the sleeve of the present invention.

Illustration of the drawings:

1. a body; 2. a control end; 3. a motor; 4. rotating the rod; 5. a turntable; 6. a through groove; 7. a telescopic rod; 8. a clamp; 9. a needle cylinder; 10. a push rod; 11. a limiting mechanism; 1101. a connecting pipe; 1102. a first spring; 1103. an extrusion stem; 1104. an arc-shaped plate; 1105. a groove; 1106. a connecting plate; 1107. a bolt; 1108. a sphere; 12. an auxiliary mechanism; 1201. a sleeve; 1202. a hole groove; 1203. a chute; 1204. a slider; 1205. a connecting rod; 1206. a barrel; 1207. a second spring; 1208. a limiting rod; 1209. and (4) cleaning the block.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, an automatic sample introduction device for a liquid chromatograph includes a machine body 1, a control end 2 is installed at one side of the machine body 1, a motor 3 is installed at the bottom end inside the machine body 1, a rotating rod 4 is connected to the top end of the motor 3, a rotating disc 5 is fixedly connected to the top end of the rotating rod 4, a plurality of through grooves 6 are formed in the top end of the rotating disc 5, an expansion link 7 is connected to the top end inside the machine body 1, a clamp 8 is connected to the surface of the expansion link 7, a needle cylinder 9 is connected to the surface of the clamp 8, a push rod 10 is connected to the top end of the needle cylinder 9, a limiting mechanism 11 is installed inside the rotating disc 5, a connecting pipe 1101 is included inside the limiting mechanism 11, the connecting pipe 1101 is movably sleeved with one side of the rotating disc 5, a first spring 1102 is connected inside the connecting pipe 1101, a squeezing rod 1103 is connected to one side of the first spring 1102, and the squeezing rod 1103 is movably connected to the inside of the rotating disc 5, one side of extrusion stem 1103 is connected with arc 1104, and be connected between arc 1104 and the inner wall one side that leads to groove 6, one side of carousel 5 is connected with recess 1105, one side of connecting pipe 1101 is connected with connecting plate 1106, and one side threaded connection of connecting plate 1106 has bolt 1107, the bottom of bolt 1107 is connected with spheroid 1108, and be connected for relatively between the inside of spheroid 1108 and recess 1105, complementary unit 12 is installed to one side of organism 1, telescopic link 7 is convenient for drive cylinder 9 and is removed, push rod 10 is convenient for drive cylinder 9 and is worked.

Further, carousel 5 passes through to constitute rotating-structure between dwang 4 and the motor 3, and syringe 9 passes through to constitute elevation structure between anchor clamps 8 and the telescopic link 7, and motor 3 is being convenient for drive carousel 5 and is rotating, is convenient for rotate the bottom of syringe 9 with leading to the inside test tube of groove 6.

Further, the extrusion stem 1103 forms an elastic structure through between first spring 1102 and the connecting pipe 1101, the bolt 1107 passes through the sphere 1108 and forms a clamping structure between the groove 1105, the extrusion stem 1103 and the arc plate 1104 are convenient for limiting the test tube, and the sphere 1108 and the groove 1105 are convenient for limiting the arc plate 1104.

Further, the inside of the auxiliary mechanism 12 includes a sleeve 1201, and the sleeve 1201 is connected with one side of the inner wall of the machine body 1, a hole 1202 is opened on one side of the sleeve 1201, and one side of the inner wall of the sleeve 1201 is connected with a sliding groove 1203, a sliding block 1204 is movably sleeved on the sliding groove 1203, one side of the sliding block 1204 is connected with a connecting rod 1205, the other side of the connecting rod 1205 is connected with a barrel 1206, the inside of the barrel 1206 is connected with a second spring 1207, one side of the second spring 1207 is connected with a limiting rod 1208, and the limiting rod 1208 and the inside of the hole 1202 are movably sleeved, one side of the connecting rod 1205 is connected with a cleaning block 1209, when the needle is not used, the cleaning block 1209 can be accommodated inside the needle, so that dust or other sundries can be prevented from contacting the needle, and subsequent use of the needle can be affected.

Further, the connecting rod 1205 passes through and constitutes sliding structure between slider 1204 and the spout 1203, and gag lever post 1208 is the T shape, and slider 1204 and spout 1203 are convenient for the connecting rod 1205 to remove, are convenient for remove the bottom of syringe needle with the cleaning block 1209 that the connecting rod 1205 is connected.

Further, gag lever post 1208 passes through to constitute elastic construction between second spring 1207 and the barrel 1206, and gag lever post 1208 passes through to constitute the block structure between hole 1202 and the sleeve 1201, and the gag lever post 1208 is connected with hole 1202, is convenient for carry on spacingly to connecting rod 1205, and the removal of gag lever post 1208 is convenient for to second spring 1207.

The working principle is as follows: when in use, firstly, the test tube is placed into the through groove 6, the connecting pipe 1101 and the extrusion rod 1103 connected with the connecting plate 1106 can be moved by pressing the connecting plate 1106, so that the test tube in the through groove 6 can be limited by the arc-shaped plate 1104 connected with the extrusion rod 1103, the test tube is prevented from moving when the needle cylinder 9 is operated, and the subsequent use of the test tube is influenced, meanwhile, the ball 1108 can be driven to move by rotating the bolt 1107 so as to move the test tube into the groove 1105, so that the connecting pipe 1101, the extrusion rod 1103 and the arc-shaped plate 1104 can be limited, the needle cylinder 9 can be driven to move to a specified position by the operation of the telescopic rod 7, the needle cylinder 9 can be operated by the operation of the push rod 10, the needle cylinder 9 can be operated, meanwhile, the rotary disc 5 and the test tube can be driven to rotate by the rotation of the motor 3, the working efficiency of the needle cylinder 9 can be improved, after the use is finished, can extrude the inside of gag lever post 1208 to hole groove 1202, can make its inside connecting rod 1205 move in the inside of spout 1203 through slider 1204, be convenient for move the cleaning block 1209 that connecting rod 1205 is connected to appointed position, the syringe needle of being convenient for when not using, can accomodate it in the inside of cleaning block 1209, prevent to expose outside for a long time, influence its subsequent use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a liquid chromatograph autoinjection device, includes organism (1), its characterized in that: the automatic feeding machine is characterized in that a control end (2) is installed on one side of the machine body (1), a motor (3) is installed at the bottom end inside the machine body (1), a rotating rod (4) is connected to the top end of the motor (3), a rotating disc (5) is fixedly connected to the top end of the rotating rod (4), a plurality of through grooves (6) are formed in the top end of the rotating disc (5), a telescopic rod (7) is connected to the top end of the machine body (1), a clamp (8) is connected to the surface of the telescopic rod (7), a needle cylinder (9) is connected to the surface of the clamp (8), a push rod (10) is connected to the top end of the needle cylinder (9), a limiting mechanism (11) is installed inside the rotating disc (5), a connecting pipe (1101) is included inside the limiting mechanism (11), the connecting pipe (1101) is movably sleeved between one side of the connecting pipe (1101) and one side of the rotating disc (5), and a first spring (1102) is connected inside the connecting pipe (1101), one side of first spring (1102) is connected with squeeze bar (1103), and is swing joint between the inside of squeeze bar (1103) and carousel (5), one side of squeeze bar (1103) is connected with arc (1104), and is connected between arc (1104) and the inner wall one side that leads to groove (6), one side of carousel (5) is connected with recess (1105), one side of connecting pipe (1101) is connected with connecting plate (1106), and one side threaded connection of connecting plate (1106) has bolt (1107), the bottom of bolt (1107) is connected with spheroid (1108), and is connected for relative between the inside of spheroid (1108) and recess (1105), complementary unit (12) are installed to one side of organism (1).

2. The automatic sample introduction device of a liquid chromatograph according to claim 1, characterized in that: carousel (5) constitute revolution mechanic through between dwang (4) and motor (3), needle cylinder (9) pass through and constitute elevation structure between anchor clamps (8) and telescopic link (7).

3. The automatic sample introduction device of a liquid chromatograph according to claim 1, characterized in that: the extrusion rod (1103) and the connecting pipe (1101) form an elastic structure through the first spring (1102), and the bolt (1107) forms a clamping structure through the ball (1108) and the groove (1105).

4. The automatic sample introduction device of a liquid chromatograph according to claim 1, characterized in that: the inside of complementary unit (12) is including sleeve pipe (1201), and is connected between the inner wall one side of sleeve pipe (1201) and organism (1), hole groove (1202) have been seted up to one side of sleeve pipe (1201), and inner wall one side of sleeve pipe (1201) is connected with spout (1203), slider (1204) have been cup jointed in the inside activity of spout (1203), and one side of slider (1204) is connected with connecting rod (1205), the opposite side of connecting rod (1205) is connected with barrel (1206), and the internal connection of barrel (1206) has second spring (1207), one side of second spring (1207) is connected with gag lever post (1208), and cup joint for the activity between the inside of gag lever post (1208) and hole groove (1202), one side of connecting rod (1205) is connected with cleaning block (1209).

5. The automatic sample introduction device of a liquid chromatograph according to claim 4, characterized in that: the connecting rod (1205) forms a sliding structure through the sliding block (1204) and the sliding groove (1203), and the limiting rod (1208) is T-shaped.

6. The automatic sample introduction device of a liquid chromatograph according to claim 4, characterized in that: the limiting rod (1208) forms an elastic structure with the barrel (1206) through the second spring (1207), and the limiting rod (1208) forms a clamping structure with the sleeve (1201) through the hole groove (1202).