Nitrogen blowing concentration functional island

Abstract

The utility model provides a nitrogen blowing concentration functional island, belongs to the technical field of sample detection, and solves the problems that a solvent needs to be taken out from a headspace bottle manually and the working intensity is high in the prior art. The headspace bottle sealing device comprises a mounting frame, a three-axis mechanical arm is mounted at the top of the mounting frame and connected with a liquid moving and taking module, a headspace bottle sealing device is mounted in the mounting frame and comprises a supporting seat, a bottle seat and a rotary lifting air cylinder are arranged in the supporting seat, a headspace bottle is placed in the bottle seat, and the rotary lifting air cylinder is connected with the headspace bottle. The movable end of the rotary lifting air cylinder is connected with a rotary base, and the lower surface of the rotary base is connected with a pressing plate used for blocking the headspace bottle. The liquid moving and taking module is arranged on the three-axis mechanical arm, manual solvent extraction can be replaced, the headspace bottle can be automatically opened and closed in cooperation with the rotary lifting air cylinder, automatic operation is achieved, manual operation is avoided, continuous operation of the nitrogen blowing concentration function island is facilitated, and the treatment efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the sample detection technical field, concretely belongs to a nitrogen blow concentration function island. BACKGROUND

[0002] Nitrogen blow concentration is a technology that uses nitrogen to blow sample solution to evaporate solvent in it, thereby obtaining more concentrated sample. This technology is widely used in sample pretreatment in the fields of environment, food, medicine, etc.

[0003] The existing nitrogen blow concentration function island mainly includes nitrogen blow module, high-precision mechanical hand system, vortex module, container opening and closing system and liquid adding function module and other automatic equipment, can realize full-automatic nitrogen blow operation, reduces manual intervention, improves the accuracy and repeatability of experiment. In the nitrogen blow concentration function island, headspace bottle filling solvent is used, in the nitrogen blow concentration process, solvent needs to be taken out from the headspace bottle and added to the sample, in order to reduce the volatilization of the solvent, the headspace bottle is in the closed state, and is opened only when in use, and needs to be closed immediately after use; The operation of taking out the solvent from the existing nitrogen blow concentration function island is manually operated, and the reciprocating operation is high in working strength for the operator, and is not conducive to the continuous operation of the nitrogen blow concentration function island. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the utility model aims at providing a nitrogen blow concentration function island, liquid removal module is arranged on the three-axis mechanical arm, can replace manual solvent extraction, cooperate with the rotary lifting cylinder to automatically open and close the headspace bottle, realize automatic operation, avoid manual operation, be favorable for the continuous operation of the nitrogen blow concentration function island, improve the processing efficiency.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A nitrogen blow concentration function island, including the installation frame, the top of the installation frame is installed three-axis mechanical arm, three-axis mechanical arm is connected with liquid removal module, the installation frame is installed with headspace bottle sealing device, headspace bottle sealing device includes support seat, the support seat is provided with bottle seat and rotary lifting cylinder, the bottle seat is placed with headspace bottle, the movable end of rotary lifting cylinder is connected with rotary seat, the lower surface of rotary seat is connected with the pressing plate for plugging headspace bottle.

[0007] Preferably, the upper surface of the pressing plate is connected with the mounting column vertically movably penetrating the rotary seat, and the sidewall of the rotary seat is threaded with the threaded stud abutting against the mounting column.

[0008] Preferably, the lower surface of the pressing plate is provided with a sealing gasket.

[0009] Preferably, the three-axis robotic arm includes a moving frame, the moving frame is provided with a transverse movement device that moves along the length direction of the moving frame, the transverse movement device is connected to a telescopic arm, and the liquid transfer module is provided on the telescopic end of the telescopic arm.

[0010] Preferably, two telescopic arms are provided, one of which is connected to the liquid transfer module, and the other is connected to an electric clamp.

[0011] Preferably, universal wheels are provided at the bottom of the mounting frame.

[0012] Preferably, a first nut is fixedly connected to the bottom of the installation frame, the first nut is threadedly connected to a vertically arranged screw rod, and the lower end of the screw rod is connected to a support pad.

[0013] Preferably, a second nut is fixedly sleeved on the screw rod.

[0014] Preferably, the installation frame is provided with a nitrogen blowing module, a switch cover module, a vortex module and a liquid processing module.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] A liquid transfer module is installed on the three-axis robotic arm to replace manual extraction of solvents. The rotary lifting cylinder can automatically open and close the headspace bottle, realizing automated operation and avoiding manual operation. This is conducive to the continuous operation of the nitrogen blowing and concentration functional island and improves processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of a three-dimensional structure provided by an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of a three-dimensional structure from another perspective provided by an embodiment of the present utility model;

[0020] Figure 3 A schematic diagram of the main structure provided by an embodiment of the utility model;

[0021] Figure 4 for Figure 1 A in the figure shows the enlarged structural diagram;

[0022] Figure 5For Figure 2 Amplification structure schematic view in B in the figure;

[0023] Figure 6 The top space bottle sealing device structure schematic view provided by the utility model embodiment.

[0024] The figure mark: 1 - installation frame; 2 - switch cover module; 3 - scroll module; 4 - liquid processing module; 5 - top space bottle sealing device; 501 - support seat; 502 - sealing gasket; 503 - mounting column; 504 - rotating seat; 505 - rotary lifting air cylinder; 506 - stud; 507 - pressing plate; 508 - bottle seat; 6 - support pad; 7 - universal wheel; 8 - three-axis mechanical arm; 801 - horizontal moving device; 802 - moving frame; 803 - telescopic arm; 9 - nitrogen blowing module; 10 - sample rack placing plate; 11 - sample rack; 12 - inductive switch; 13 - first nut; 14 - screw rod; 15 - second nut; 16 - liquid taking module; 17 - electric clamping jaw; 18 - test tube; 19 - top space bottle. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model embodiments clearer, the technical scheme in the utility model embodiments will be described clearly and completely below in combination with the drawings in the utility model embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the utility model embodiments described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0027] In the description of the utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0028] The following will be described in detail in combination with Figures 1-6 The utility model is described in detail.

[0029] Embodiment:

[0030] A nitrogen blow concentration function island, comprising a mounting frame 1, a three-axis mechanical arm 8 is mounted on the top of the mounting frame 1, a liquid transfer module 16 is connected to the three-axis mechanical arm 8, a headspace bottle sealing device 5 is installed in the mounting frame 1, the headspace bottle sealing device 5 comprises a support seat 501, a bottle seat 508 and a rotary lifting cylinder 505 are arranged in the support seat 501, a headspace bottle 19 is placed in the bottle seat 508, a rotary seat 504 is connected to the movable end of the rotary lifting cylinder 505, and a pressing plate 507 for sealing the headspace bottle 19 is connected to the lower surface of the rotary seat 504.

[0031] The rotary lifting cylinder 505 can control the up-and-down movement of the pressing plate 507 and also enable the pressing plate 507 to rotate and be offset from the position directly above the headspace bottle 19, facilitating the three-axis mechanical arm 8 to drive the liquid transfer module 16 to extend into the headspace bottle 19 to extract the solvent. When the pressing plate 507 is attached to the upper end surface of the headspace bottle 19, the headspace bottle 19 can be sealed, reducing the evaporation of the solvent. The rotary lifting cylinder 505 is an existing device, such as an MKB rotary cylinder; the liquid transfer module 16 is a prior art technology used for the suction and injection of liquid samples, such as the liquid transfer module disclosed in the patent with the publication number CN112774750A.

[0032] As shown in Figure 5 and 6 , the upper surface of the pressing plate 507 is connected with a mounting column 503 that vertically moves through the rotary seat 504, and the sidewall of the rotary seat 504 is threaded through a stud 506 that abuts against the mounting column 503. The pressing plate 507 is detachably connected to the rotary seat 504 through the cooperation of the mounting column 503 and the stud 506, thereby facilitating the replacement of the pressing plate 507 to press and seal headspace bottles 19 of different sizes. In order to further ensure the sealing effect of the headspace bottle 19, a magnetic switch can be provided on the rotary lifting cylinder 505 to detect the position of the rotary seat 504, thereby judging whether the action of the rotary lifting cylinder 505 is completed, such as the rotation and depression of the rotary lifting cylinder 505 and the rotation and lifting of the rotary lifting cylinder 505.

[0033] The lower surface of the pressing plate 507 is provided with a sealing gasket 502. The sealing gasket 502 seals the gap between the pressing plate 507 and the headspace bottle 19, further improving the sealing performance. The sealing gasket 502 is detachably connected to the pressing plate 507 by screws, facilitating the disassembly and replacement of the sealing gasket 502 after aging.

[0034] As shown in Figure 1As shown, the three-axis mechanical arm 8 comprises a moving frame 802, a transverse moving device 801 arranged on the moving frame 802 and moving along the length direction of the moving frame 802, a telescopic arm 803 connected to the transverse moving device 801, and the liquid taking module 16 arranged on the telescopic end of the telescopic arm 803. The moving frame 802 can move along the longitudinal direction, and the transverse moving device 801 can move along the transverse direction, so that the telescopic arm 803 moves to any position right above the installation frame 1. When moved to the designated position, the telescopic arm 803 is extended to stretch the liquid taking module 16 downward, so that the collection tube of the liquid taking module 16 is stretched into the headspace bottle 19.

[0035] As shown in Figure 4 The telescopic arm 803 is provided with two, one of which is connected with the liquid taking module 16, and the other is connected with the electric clamping jaw 17. The electric clamping jaw 17 can clamp the test tube 18 containing the sample and move to the relevant module for processing. In use, one of the telescopic arms 803 can be telescoped according to the requirement to control the electric clamping jaw 17 or the liquid taking module 16 to operate.

[0036] The bottom of the installation frame 1 is provided with universal wheels 7, which facilitates the movement of the entire functional island.

[0037] As shown in Figure 3 The bottom of the installation frame 1 is provided with a first nut 13 fixedly connected, the first nut 13 is threadedly connected with a vertically arranged screw rod 14, and the lower end of the screw rod 14 is connected with a support pad 6. The support pad 6 is threadedly connected to the first nut 13 through the screw rod 14, and after the functional island is moved to the position, the screw rod 14 is screwed downward, so that the support pad 6 is tightly pressed against the ground, thereby ensuring that the functional island is maintained in a stable placement state.

[0038] The screw rod 14 is fixedly sleeved with a second nut 15, which facilitates the screwing of the screw rod 14 by the tool clamping the second nut 15.

[0039] As shown in Figure 1 and 2As shown, the installation frame 1 is provided with a nitrogen blowing module 9, a switch cover module 2, a vortex module 3 and a liquid treatment module 4. The nitrogen blowing module 9 is used to blow nitrogen into the surface of the heated sample for sample concentration. The nitrogen blowing module 9 is prior art, for example, the patent with publication number CN205749089U discloses a nitrogen blowing instrument. The switch cover module 2 can automatically open and close the cover of the test tube 18. The switch cover module 2 is prior art, for example, the patent with publication number CN212050462U discloses a test tube automatic opening and closing device. The vortex module 3 is used to vortex mix the sample in the test tube 18. The vortex module 3 is prior art, for example, the patent with publication number CN217221205U discloses a physical and chemical sample pretreatment automatic mixing device. The liquid treatment module 4 is used for liquid suction, distribution, mixing and other treatment operations. The liquid treatment module 4 is prior art, for example, the patent with publication number CN113834710B discloses a full-automatic liquid treatment workstation.

[0040] As shown in Figure 2 The installation frame 1 is also provided with a sample rack placing plate 10. The sample rack 11 is placed on the sample rack placing plate 10. A plurality of test tubes 18 are placed on the sample rack 11. The sample rack placing plate 10 is provided with an inductive switch 12. The inductive switch 12 is used to sense whether the sample rack 11 is placed in place.

[0041] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A nitrogen blow concentration function island comprising a mounting frame (1), characterized in that, The top of the mounting frame (1) is provided with a three-axis mechanical arm (8), the three-axis mechanical arm (8) is connected with a liquid taking module (16), the mounting frame (1) is provided with a headspace bottle sealing device (5), the headspace bottle sealing device (5) comprises a supporting seat (501), the supporting seat (501) is provided with a bottle seat (508) and a rotary lifting cylinder (505), the bottle seat (508) is placed with a headspace bottle (19), the movable end of the rotary lifting cylinder (505) is connected with a rotary seat (504), the lower surface of the rotary seat (504) is connected with a pressing plate (507) for sealing the headspace bottle (19).

2. The nitrogen blow concentration functional island according to claim 1, wherein, The upper surface of the pressing plate (507) is connected with a mounting column (503) which moves vertically and penetrates the rotary seat (504), the sidewall of the rotary seat (504) is threaded penetrated by a stud (506) which abuts against the mounting column (503).

3. The nitrogen blow concentration functional island of claim 1, wherein, The lower surface of the pressing plate (507) is provided with a sealing gasket (502).

4. The nitrogen blow concentration functional island of claim 1, wherein, The three-axis mechanical arm (8) comprises a moving frame (802), the moving frame (802) is provided with a transverse moving device (801) which moves along the length direction of the moving frame (802), the transverse moving device (801) is connected with a telescopic arm (803), the liquid taking module (16) is arranged on the telescopic end of the telescopic arm (803).

5. A nitrogen blow concentration function island according to claim 4, wherein, The telescopic arm (803) is provided with two, one of the telescopic arms (803) is connected with the liquid taking module (16), and the other telescopic arm (803) is connected with an electric clamping jaw (17).

6. The nitrogen blow concentration functional island of claim 1, wherein, The bottom of the mounting frame (1) is provided with a universal wheel (7).

7. A nitrogen blow concentration functional island according to claim 6, wherein, The bottom of the mounting frame (1) is provided with a first nut (13) which is fixedly connected, the first nut (13) is threaded connected with a vertically arranged screw rod (14), the lower end of the screw rod (14) is connected with a supporting pad (6).

8. The nitrogen blow concentration function island of claim 7, wherein, The screw rod (14) is fixedly sleeved with a second nut (15).

9. The nitrogen blow concentration functional island of claim 1, wherein, The mounting frame (1) is provided with a nitrogen blowing module (9), a switch cover module (2), a vortex module (3) and a liquid processing module (4).

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