CN218725639U

CN218725639U - Pump suction type automatic sample injector

Info

Publication number: CN218725639U
Application number: CN202120313653.0U
Authority: CN
Inventors: 续竞生
Original assignee: Tianjin Otesains Instrument Co ltd
Current assignee: Tianjin Otesains Instrument Co ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2023-03-24
Anticipated expiration: 2031-02-03

Abstract

The utility model belongs to the technical field of the sample test, especially, be a pump suction type autosampler, comprising a base plate, there are motor, controller and brace table in proper order from a left side to the right side in the up end of bottom plate, the output fixed mounting of motor has the dish of placing, the up end of placing the dish is seted up a plurality of standing grooves that encircle the distribution, the up end of placing the dish is provided with the bracing piece, the support frame is installed to the bottom of bracing piece, the internally mounted of support frame has the gyro wheel, the spout is installed to the right side wall of bracing piece, the inside activity joint of spout has the connecting rod, the bottom face fixed mounting of connecting rod has the sampling tube to prescribe a limit to the position of gyro wheel through the spacing groove, thereby avoid placing the dish and take place the skew when rotating, appear influencing the problem of taking a sample to and make fixed frame drive the downward movement that the sampling needle can be stable, and then make the sampling needle can be accurate insert the standing groove and take a sample.

Description

Pump suction type automatic sample injector

Technical Field

The utility model relates to a sample detection technical field, concretely relates to pump suction type automatic sample injector.

Background

Along with the application of liquid phase systems in the fields of biology, chemistry, medical treatment, petroleum and the like, the sample injector is more and more favored by people as a main device for sampling of the liquid phase systems, at present, the existing sample injectors can be divided into a manual sample injector and an automatic sample injector, the automatic sample injector gradually replaces the manual sample injector with the advantages of large sample injection amount, high sample injection speed, high sample injection accuracy and the like, the motion forms of the motion systems of the automatic sample injectors are more and more, most of the motion systems of the automatic sample injectors adopt a structure that a transmission part is matched with a guide rail so as to realize a three-dimensional motion (i.e. the motion in three axial directions of an X axis, a Y axis and a Z axis), and some guide rails adopt ball guide rails, some guide rails adopt linear guide rails and the like.

When the existing pump suction type automatic sample injector is used for sampling, various transmission parts are matched with the guide rail to move, and the shaking phenomenon can occur in the moving process, so that the transmission parts are deviated, the positioning precision of the automatic sample injector cannot meet the requirement, and the sampling accuracy is influenced.

SUMMERY OF THE UTILITY MODEL

For solving the problem that provides in the above-mentioned background art, the utility model provides a pumping formula autosampler has and prescribes a limit to the position of gyro wheel through the spacing groove to avoid placing the dish and taking place the skew when rotating, appear influencing the problem of sample, and make fixed frame drive the downstream that the sampling needle can be stable, and then make the characteristics of inserting the standing groove and taking a sample that the sampling needle can be accurate.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pump suction type autosampler, includes the bottom plate, there are motor, controller and brace table in proper order fixed mounting in a left side to the right side in the up end of bottom plate, the output fixed mounting of motor has the dish of placing, the up end of placing the dish is seted up a plurality of standing grooves that encircle the distribution, the up end of placing the dish is provided with the bracing piece, the support frame is installed to the bottom of bracing piece, the internally mounted of support frame has the gyro wheel, the spout is installed to the right side wall of bracing piece, the inside activity joint of spout has the connecting rod, the bottom face fixed mounting of connecting rod has the sampling tube, the one end intercommunication of sampling tube has the sample needle, the right-hand member fixedly connected with of connecting rod, the fixed frame is from last to installing air pump down in proper order and storing up the appearance case in the inside of fixed frame, the right side of fixed frame is provided with the backup pad, backup pad fixed mounting is in the right-hand member of brace table up end, the left side wall of backup pad is provided with the slide bar that distributes around two the equal activity of lateral wall of slide bar has cup jointed two sliding sleeves, four the equal fixed wall fixed mounting in the right side wall of fixed frame.

In order to avoid placing the dish and taking place the skew when rotating, as the utility model relates to a pump suction type autosampler is preferred, the spacing groove has been seted up to the up end of placing the dish, and is a plurality of the standing groove encircles and distributes in the outside of spacing groove, the gyro wheel is located the inside of spacing groove.

In order to make the sample needle insert and take a sample in the standing groove, as the utility model relates to a pump suction type autosampler is preferred, the up end of brace table is provided with the mounting groove, the inside fixed mounting of mounting groove has electric push rod, electric push rod's output and the bottom face fixed connection of fixed frame.

In order to make fixed frame drive the downward or rebound that the sampling needle can be stable, as the utility model relates to a pump suction type autosampler is preferred, the equal fixed mounting in upper and lower both ends of backup pad left side wall has the fixed plate, two the equal fixed mounting of slide bar is between two fixed plates.

In order to make the sampling needle pass through the sampling tube with the sample and inhale the storage appearance incasement, as the utility model relates to a pump suction type autosampler is preferred, the sampling tube is kept away from the one end of sampling needle and is stored up appearance case intercommunication, the air pump passes through the pipeline and stores up appearance case intercommunication.

Stop after rotating certain angle for make the motor for the convenience and take a sample, conduct the utility model relates to a pump suction type automatic sample injector is preferred, equal and the controller electric connection of motor, electric putter and air pump.

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

1. this kind of auto-sampler is inhaled to pump puts into the inside of a plurality of standing grooves in proper order to the container that will be equipped with the sample, and through starter motor, the motor drives and places the dish and rotate, and the gyro wheel rolls along the spacing groove for the spacing groove is injectd the position of gyro wheel, thereby avoids placing the dish and takes place the skew when rotating, and influences the sample.

2. This kind of auto-sampler of pump-suction type, through starting electric push rod, the fixed frame rebound of electric push rod pulling, four sliding sleeves support fixed frame respectively along two slide bars downward or rebound, make fixed frame drive the rebound that the sampling needle can be stable, and then make the sampling needle can be accurate when rebound insert the standing groove in take a sample, through starting the air pump, the air pump makes the reduction of storage appearance incasement atmospheric pressure, make the sampling needle inhale the storage appearance incasement with the sample through the sampling tube, thereby accomplish the sample work.

To sum up, this kind of pump suction autosampler has, prescribes a limit to the position of gyro wheel through the spacing groove to avoid placing the dish and taking place the skew when rotating, appear influencing the problem of sample, and make fixed frame drive the downstream that the sampling needle can be stable, and then make the sampling needle can be accurate insert the standing groove in sample.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a perspective view of a pump-suction type automatic sample injector according to the present invention;

FIG. 2 is a cross-sectional view of a pump-suction autosampler according to the present invention;

fig. 3 is a left side view structure diagram of the fixing plate of the present invention.

In the figure, 1, a bottom plate; 2. a motor; 3. placing a tray; 301. a placement groove; 302. a limiting groove; 4. a support bar; 401. a support frame; 402. a roller; 403. a chute; 5. a connecting rod; 501. a sampling tube; 502. a sampling needle; 6. a fixing frame; 601. an air pump; 602. a sample storage box; 7. a support plate; 701. a fixing plate; 702. a slide bar; 703. a sliding sleeve; 8. a support table; 801. mounting grooves; 802. an electric push rod; 9. and a controller.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides a pump-suction type autosampler, comprising a base plate 1, bottom plate 1's up end has motor 2 from a left side to the right side fixed mounting in proper order, controller 9 and brace table 8, motor 2's output fixed mounting places a set 3, place the up end of set 3 and set up a plurality of standing grooves 301 that encircle the distribution, the up end of placing set 3 is provided with bracing piece 4, support frame 401 is installed to the bottom of bracing piece 4, the internally mounted of support frame 401 has gyro wheel 402, spout 403 is installed to the right side wall of bracing piece 4, the inside activity joint of spout 403 has connecting rod 5, the bottom face fixed mounting of connecting rod 5 has sampling tube 501, the one end intercommunication of sampling tube 501 has sampling needle 502, the right-hand member fixedly connected with fixed frame 6 of connecting rod 5, the inside of fixed frame 6 is from last to installing air pump 601 and storing up appearance case 602 in proper order down, the right side of fixed frame 6 is provided with backup pad 7, backup pad 7 fixed mounting is at the right-hand member of the up end of brace table 8, the left side wall of backup pad 7 is provided with two slide bars 702 that distribute from beginning to end, the front and back, the equal activity of the lateral wall of two slide bars 702 has cup jointed two slide bars 703, the equal fixed lateral walls, the lateral wall of four slide sleeves.

In this embodiment: through starter motor 2, motor 2 drives and places dish 3 and rotate, gyro wheel 402 rolls along spacing groove 302, make spacing groove 302 prescribe a limit to the position of gyro wheel 402, thereby avoid placing dish 3 and take place the skew when rotating, at this moment through starting electric push rod 802, the fixed frame 6 of electric push rod 802 pulling is downstream, four sliding sleeves 703 support fixed frame 6 respectively along two slide bars 702 downward or rebound, make fixed frame 6 drive the downward movement that the sampling needle 502 can be stable, and then make the sampling needle 502 can be accurate when the downward movement insert the standing groove 301 in take a sample, through starting air pump 601, air pump 601 makes the internal pressure of sample storage case 602 reduce, make the sampling needle 502 inhale the sample through sampling tube 501 in the sample storage case 602, thereby accomplish sample work.

As a technical optimization scheme of the utility model, the spacing groove 302 has been seted up to the up end of placing dish 3, and a plurality of standing grooves 301 encircle and distribute in the outside of spacing groove 302, and gyro wheel 402 is located the inside of spacing groove 302.

In this embodiment: when the placing disc 3 rotates, the roller 402 rolls along the limiting groove 302, so that the limiting groove 302 limits the position of the roller 402, the placing disc 3 is prevented from deviating when rotating, and the sampling needle 502 can be accurately inserted into the placing groove 301 for sampling when moving downwards.

As a technical optimization scheme of the utility model, the up end of brace table 8 is provided with mounting groove 801, and the inside fixed mounting of mounting groove 801 has electric push rod 802, electric push rod 802's output and the bottom face fixed connection of fixed frame 6.

In this embodiment: by starting the electric push rod 802, the electric push rod 802 pulls the fixing frame 6 to move downwards, so that the fixing frame 6 drives the sampling tube 501 and the sampling needle 502 to move downwards, and the sampling needle 502 is inserted into the placing groove 301 for sampling.

As a technical optimization scheme of the utility model, the equal fixed mounting in upper and lower both ends of the 7 left side walls of backup pad has fixed plate 701, and two equal fixed mounting of slide bar 702 are between two fixed plates 701.

In this embodiment: when the fixed frame 6 moves downwards or upwards, the four sliding sleeves 703 move downwards or upwards along the two sliding rods 702 respectively, so that the two sliding rods 702 play a supporting role, and the fixed frame 6 drives the sampling needle 502 to move downwards or upwards stably.

As a technical optimization scheme of the utility model, the one end and the storage appearance case 602 intercommunication of sampling probe 502 are kept away from to sampling tube 501, and air pump 601 passes through the pipeline and stores up appearance case 602 intercommunication.

In this embodiment: when the sampling needle 502 is moved downward and inserted into the placement groove 301, the air pump 601 is started to reduce the air pressure in the sample storage box 602, so that the sampling needle 502 is prompted to suck the sample into the sample storage box 602 through the sampling tube 501, and the sampling work is completed.

As a technical optimization scheme of the utility model, motor 2, electric push rod 802 and air pump 601 all with controller 9 electric connection.

In this embodiment: the rotation angle of the motor 2 is set through the controller 9, the rotation angle of the motor 2 is consistent with the rotation angles of the placing grooves 301, the motor 2 stops after rotating for a certain angle, and the sampling needle 502 is convenient to sample.

The utility model discloses a theory of operation and use flow: firstly, the container that will be equipped with the sample is put into the inside of a plurality of standing grooves 301 in proper order, through starter motor 2, motor 2 drives and places the dish 3 and rotate, gyro wheel 402 rolls along spacing groove 302, make spacing groove 302 prescribe the position of gyro wheel 402, thereby avoid placing dish 3 and take place the skew when rotating, this moment through starting electric push rod 802, fixed frame 6 is moved down in electric push rod 802 pulling, four sliding sleeves 703 support fixed frame 6 respectively and move down or upward along two slide bars 702, make fixed frame 6 drive the downward removal that sampling needle 502 can be stable, and then make sampling needle 502 can be accurate when the downward removal insert standing groove 301 in take a sample, through starting air pump 601, air pump 601 makes the internal pressure of storage sample case 602 reduce, impel sampling needle 502 to inhale the sample through sampling tube 501 in the storage sample case 602, thereby accomplish sampling work.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a pump-suction autosampler, includes bottom plate (1), its characterized in that: the upper end face of the bottom plate (1) is fixedly provided with a motor (2), a controller (9) and a supporting table (8) in sequence from left to right, an output end of the motor (2) is fixedly provided with a placing disc (3), the upper end face of the placing disc (3) is provided with a plurality of placing grooves (301) distributed in a surrounding manner, the upper end face of the placing disc (3) is provided with a supporting rod (4), the bottom of the supporting rod (4) is provided with a supporting frame (401), the inside of the supporting frame (401) is provided with a roller (402), the right side wall of the supporting rod (4) is provided with a sliding groove (403), the inside of the sliding groove (403) is movably clamped with a connecting rod (5), the bottom end face of the connecting rod (5) is fixedly provided with a sampling tube (501), one end of the sampling tube (501) is communicated with a sampling needle (502), the right end of the connecting rod (5) is fixedly connected with a fixed frame (6), the inside of the fixed frame (6) is provided with an air pump (601) and a sample storage box (602) in sequence from top to bottom, the right side of the fixed frame (6) is provided with a supporting plate (7), the sliding sleeve is fixedly arranged on the left side face of the sliding sleeve (8), and the sliding sleeve is provided with two sliding sleeve (702), and the sliding sleeve (702) is provided with two outer side walls, the outer side walls of the four sliding sleeves (703) are fixedly arranged on the right side wall of the fixed frame (6).

2. The pump-suction autosampler of claim 1, wherein: the upper end face of the placing disc (3) is provided with a limiting groove (302), the placing grooves (301) are distributed on the outer side of the limiting groove (302) in a surrounding mode, and the roller (402) is located inside the limiting groove (302).

3. The pump-suction autosampler of claim 1, wherein: the utility model discloses a supporting bench, including supporting bench (8), the up end of supporting bench (8) is provided with mounting groove (801), the inside fixed mounting of mounting groove (801) has electric push rod (802), the output of electric push rod (802) and the bottom end face fixed connection of fixed frame (6).

4. The pump-suction autosampler of claim 1, wherein: the upper end and the lower end of the left side wall of the supporting plate (7) are fixedly provided with fixing plates (701), and the two sliding rods (702) are fixedly arranged between the two fixing plates (701).

5. The pump-suction autosampler of claim 1, wherein: one end of the sampling tube (501), which is far away from the sampling needle (502), is communicated with the sample storage box (602), and the air pump (601) is communicated with the sample storage box (602) through a pipeline.

6. The pump-suction autosampler of claim 1, wherein: the motor (2), the electric push rod (802) and the air pump (601) are electrically connected with the controller (9).