A standard curve configuration device

Abstract

The utility model relates to experimental analysis equipment technical field especially, and one kind is configured to standard curve device, and the device includes experimental operation platform, and the mesa is equipped with the fillet rubber pad and electric lifting rod of scale line, and automatic horizontal transfer frame is assembled on the lifting rod upper end, and the automatic horizontal transfer frame is equipped with the automatic down -pressing frame of horizontal movement on, and a plurality of liquid suction components are assembled on the down -pressing frame. Automatic horizontal transfer frame drives C -shaped frame horizontal movement through motor drive long screw rod, and automatic down -pressing frame drives pressing plate lifting through motor drive short screw rod, and liquid suction component is linked with pressing plate through magnetic adsorption, and utilizes compression air cylinder and disposable pipette to complete suction and discharge. The utility model realizes the automation operation of liquid suction, pipetting, discharge in standard curve preparation process, has the advantages such as operation efficient, positioning accurate, prevent cross -contamination, and component spacing adjustable, is applicable to the standard solution batch preparation in chemical, biological and environmental monitoring field.

Description

Technical Field

[0001] This utility model relates to the field of experimental analysis equipment technology, and in particular to a standard curve configuration device. Background Technology

[0002] In quantitative analysis in fields such as chemical analysis, biological detection, and environmental monitoring, the preparation of standard curves is a crucial and fundamental step, as its accuracy and precision directly affect the reliability of the final test results.

[0003] Currently, the preparation of standard curves mainly relies on manual operation by laboratory personnel. Operators must use tools such as pipettes and tubes to repeatedly perform steps such as aspiration, pipetting, and dispensing. This traditional operating mode has many drawbacks: First, the entire process is cumbersome, time-consuming, and inefficient, especially when processing large batches of samples; second, manual operation inevitably introduces human error, such as inaccurate pipetting volumes or inconsistent operating rhythms, which can lead to poor linearity of the prepared standard curve and affect the accuracy of quantitative analysis; third, to prevent cross-contamination between solutions of different concentrations, pipetting tips must be frequently changed or pipetting instruments cleaned, which not only increases the complexity of the operation but also raises time and consumable costs; furthermore, the placement of experimental containers on the workbench usually depends on the operator's experience, lacking effective positioning assistance, and even slight misalignment of the container can affect the accuracy of pipetting.

[0004] Therefore, existing technologies lack a dedicated device that can automate and standardize operations and effectively improve preparation efficiency and accuracy. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a standard curve configuration device, the specific technical solution of which is as follows:

[0006] A standard curve configuration device includes an experimental operating table, with electric lifting rods embedded and fixed at the four corners of the top surface. An automatic horizontal moving frame is mounted on the upper end of each electric lifting rod, and an automatic pressing frame that can move horizontally along the frame is mounted on the automatic horizontal moving frame. Multiple liquid suction components for liquid suction and drainage are evenly mounted on the automatic pressing frame. The automatic horizontal moving frame includes a support frame mounted on the electric lifting rod, a sliding rod welded to the side of the support frame, a long screw rod with both ends passing through through holes in the corresponding support frames, a C-shaped frame slidably fitted onto the sliding rod, and a primary motor fixedly mounted in the upper through hole of one of the support frames. The long screw rod passes through a threaded through hole in the C-shaped frame and is threadedly engaged with it. The output shaft of the primary motor is connected to one end of the long screw rod for driving the C-shaped frame to move horizontally reciprocally along the sliding rod.

[0007] Preferably, the automatic pressing frame includes an H-shaped frame disposed at the lower end of the C-shaped frame, a rubber sleeve embedded in the rounded corner through hole at the lower end of the H-shaped frame, two sliding plates inserted into the rubber sleeve at both ends, a short screw rod passing through the threaded through hole near both ends of the H-shaped frame, a pressure plate sleeved on the lower end of the short screw rod, an iron strip fixed to the bottom surface of the pressure plate, a movable plate whose two ends are engaged with the sliding groove at the upper end of the H-shaped frame, and a second motor fixedly assembled in the circular frames at both ends of the movable plate; the output shaft of the second motor is connected to the upper end of the short screw rod for driving the pressure plate and the movable plate to rise and fall synchronously.

[0008] Preferably, the liquid suction assembly includes multiple rounded corner sliding frames evenly distributed on two sliding plates, rounded corner rubber sleeves fixed inside the rounded corner sliding frames, rubber short sleeves fixedly fitted at both ends of the central short tube of the rounded corner sliding frames, a compressed air cylinder fitted at the upper end of the central short tube of the rounded corner sliding frames, a magnetic sheet fixed to the top surface of the compressed air cylinder, and a disposable liquid suction tube fitted at the lower end of the central short tube of the rounded corner sliding frames; the top surface of the magnetic sheet is adsorbed and connected to the bottom surface of the iron strip to realize the linkage between the compressed air cylinder and the pressure plate.

[0009] Preferably, the inner side of the rounded corner rubber sleeve is uniformly provided with a plurality of annular grooves for enhancing the stability of the fit with the slide plate; the outer side of the rubber short sleeve is uniformly provided with a plurality of annular grooves for improving the sealing performance.

[0010] Preferably, the inner side of the rubber sleeve is provided with a plurality of annular grooves to enhance the friction with the slide plate, and its side is provided with rounded protrusions for easy gripping.

[0011] Preferably, the side of the rounded corner slide frame is provided with rounded corner protrusions to facilitate pushing it to slide along the slide plate.

[0012] Preferably, a rounded rubber pad with graduation lines is fixed in the middle of the top surface of the experimental workbench.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] Firstly, this solution centrally controls the coordinated actions of the electric lifting rod, automatic horizontal moving frame, and automatic pressing frame through the control panel, realizing full automation of the entire process from liquid aspiration and horizontal movement to liquid discharge, greatly simplifying the operation process and significantly improving the efficiency of standard curve preparation.

[0015] Secondly, in this design, the liquid aspiration components are mounted on the slide plate via rounded corner sliding frames, and the spacing between them can be flexibly adjusted according to the container layout. The number of liquid aspiration components can be easily increased or decreased by disassembling the slide plate, which can meet the diverse needs of different experiments for the number and arrangement of containers.

[0016] Thirdly, the use of disposable suction tubes in this solution can completely avoid cross-contamination; the scale lines on the table assist in the precise and orderly placement of containers; and the precise control of the electric lifting rod and motor ensures the high accuracy of the volume and position of the suction and discharge, thereby guaranteeing the linear quality of the standard curve. Attached Figure Description

[0017] Appendix Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Appendix Figure 2 This is the utility model Figure 1 Enlarged diagram of part A in the middle;

[0019] Appendix Figure 3 This is the utility model Figure 1 Enlarged diagram of section B;

[0020] Appendix Figure 4 This is a partially exploded schematic diagram of the automatic transverse moving frame of this utility model;

[0021] Appendix Figure 5 This is a schematic diagram of the automatic pressing frame and liquid suction assembly of this utility model;

[0022] Appendix Figure 6 This is an exploded view of the automatic pressure frame of this utility model;

[0023] Appendix Figure 7 This is an exploded schematic diagram of the liquid absorption component of this utility model.

[0024] Figure labels: 1. Experimental workbench; 2. Cabinet door; 3. Rounded corner rubber pad; 4. Electric lifting rod; 5. Automatic horizontal moving frame; 501. U-shaped support frame; 502. Slide rod; 503. Long screw; 504. C-shaped frame; 505. Motor No. 1; 6. Automatic pressing frame; 601. H-shaped frame; 602. Rubber sleeve; 603. Slide plate; 604. Short screw; 605. Pressure plate; 606. Iron strip; 607. Movable plate; 608. Motor No. 2; 7. Liquid suction assembly; 701. Rounded corner slide frame; 702. Rounded corner rubber sleeve; 703. Short rubber sleeve; 704. Compressed air cylinder; 705. Magnetic sheet; 706. Disposable liquid suction tube; 8. Control panel. Detailed Implementation

[0025] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0026] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0027] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0029] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0030] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0031] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0032] like Figures 1 to 7 As shown, this utility model provides a standard curve configuration device, including an experimental operating table 1. A cabinet door is movably fitted to the front surface of the operating table 1. A rounded rubber pad 3 with graduated lines is fixed to the center of its top surface by adhesive. Electric lifting rods 4 are embedded and fixedly fitted near the four corners of the top surface. An automatic horizontal moving frame 5 is fitted to the upper end of the electric lifting rod 4. An automatic downward pressing frame 6, which can move horizontally along the automatic horizontal moving frame 5, is fitted with multiple liquid suction components 7 evenly arranged on the automatic downward pressing frame 6 for liquid suction and drainage. A control panel 8 is embedded in the center of one end of the top surface of the experimental operating table 1 for centralized control of the coordinated operation of the electric lifting rod 4, the automatic horizontal moving frame 5, and the automatic downward pressing frame 6.

[0033] The experimental workbench 1 serves as the base and support platform for the entire apparatus. Its front cabinet door 2 can be used for storage, facilitating the storage of experimental consumables. The rounded rubber pad 3 in the center of the workbench cushions impacts to protect containers from collisions, and its evenly spaced graduations allow for precise positioning of various containers holding standard solutions, test solutions, or cleaning solutions. The four corner electric lifting rods 4 are used to adjust the overall height of the automatic horizontal movement frame 5, the automatic downward pressing frame 6, and the liquid suction assembly 7, ensuring that the disposable suction tube 706 can be accurately inserted into or removed from the container.

[0034] The automatic horizontal moving frame 5 is responsible for driving the automatic pressing frame 6 and the liquid suction assembly 7 to move horizontally. Specifically, the automatic horizontal moving frame 5 includes a U-shaped support frame 501 fixedly mounted on the top surface of the experimental operating table 1 near the four corners, a slide rod 502 welded between the two corners of the side of the U-shaped support frame 501, a long screw 503 with both ends passing through the through holes of the corresponding U-shaped support frame 501, a C-shaped frame 504 slidably sleeved on the slide rod 502, and a primary motor 505 fixedly mounted in the upper through hole of one of the U-shaped support frames 501. The long screw 503 passes through the threaded through hole of the C-shaped frame 504 and is threadedly engaged with it. The output shaft of the primary motor 505 is connected to one end of the long screw 503. When the primary motor 505 is started, it can drive the long screw 503 to rotate, thereby driving the C-shaped frame 504 to move horizontally back and forth precisely along the length of the slide rod 502.

[0035] The automatic pressing frame 6 is the key actuator for realizing the liquid suction and discharge actions. Specifically, the automatic pressing frame 6 includes an H-shaped frame 601 bonded to the lower end of the C-shaped frame 504, a rubber sleeve 602 embedded in the rounded corner through hole at the lower end of the H-shaped frame 601, two sliding plates 603 inserted into the rubber sleeve 602 at both ends, a short screw 604 passing through the threaded through holes near both ends of the H-shaped frame 601, a pressure plate 605 sleeved on the lower end of the short screw 604, an iron strip 606 fixed to the bottom surface of the pressure plate 605 by adhesive, a movable plate 607 whose two ends are engaged with the sliding grooves at the upper end of the H-shaped frame 601, and a second motor 608 fixedly assembled in the circular frames at both ends of the movable plate 607. The output shaft of the second motor 608 is connected to the upper end of the short screw 604 for transmission. When motor 608 is started, it drives the short screw 604 to rotate, which in turn causes the movable plate 607 to rise and fall along the slide groove at the upper end of the H-shaped frame 601, and simultaneously causes the pressure plate 605 to rise and fall synchronously. The inner side of the rubber sleeve 602 is evenly provided with multiple annular grooves to enhance the friction with the sliding plate 603, and its side is provided with rounded protrusions for easy gripping.

[0036] The liquid suction assembly 7 is a component that directly performs liquid transfer. Specifically, the liquid suction assembly 7 includes multiple rounded corner sliding frames 701 evenly distributed on two sliding plates 603, rounded corner rubber sleeves 702 fixed inside the rounded corner sliding frames 701 by adhesive, rubber short sleeves 703 fixed to both ends of the central short tube of the rounded corner sliding frames 701 by adhesive, a compressed air cylinder 704 fitted on the upper end of the central short tube of the rounded corner sliding frames 701, a magnet 705 bonded to the top surface of the compressed air cylinder 704, and a disposable suction tube 706 fitted on the lower end of the central short tube of the rounded corner sliding frames 701. The central short tube of the rounded corner sliding frames 701 is located between the two sliding plates 603. The inner side of the rounded corner rubber sleeves 702 is evenly provided with multiple annular grooves to enhance the stability of the fit with the sliding plates 603. The outer side of the rubber short sleeves 703 is evenly provided with multiple annular grooves to improve the sealing performance of the connection with the compressed air cylinder 704 and the disposable suction tube 706. The top surface of the magnet 705 is adsorbed and connected to the bottom surface of the iron strip 606 to realize the linkage between the compressed air cylinder 704 and the pressure plate 605. The side of the rounded corner slide frame 701 is provided with rounded corner protrusions to facilitate pushing it to slide along the slide plate 603 to adjust the spacing.

[0037] The working principle of this utility model is as follows:

[0038] During preparation, according to experimental requirements, configure the required number and spacing of liquid suction components 7 on the slide plate 603 using sliding or disassembly methods, and install disposable liquid suction tubes 706. Arrange all experimental containers neatly according to the scale lines on the rounded rubber pads 3. At the start of operation, set the program via the control panel 8. First, the electric lifting rod 4 adjusts the overall height, then the automatic horizontal moving frame 5 moves the liquid suction components 7 above the container holding the mother liquor. The lifting rod 4 lowers, inserting the liquid suction tube below the liquid surface. Subsequently, the pressure plate 605 of the automatic pressing frame 6 rises, pulling the compressed air cylinder 704 to stretch, generating negative pressure, and completing liquid suction through the disposable liquid suction tube 706. After suction is complete, the lifting rod 4 rises, and the horizontal moving frame 5 moves the liquid suction components 7 above the target test tube or reaction vessel. The lifting rod 4 lowers again, the pressure plate 605 presses down, compressing the compressed air cylinder 704, and discharging the liquid into the target container. If cleaning is required, the suction and discharge operations can be repeated above the cleaning container.

[0039] The entire process is automated, reducing human intervention and ensuring the uniformity, repeatability, and accuracy of the operation.

[0040] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. A standard curve configuration device, characterized in that, The experimental operating table (1) has electric lifting rods (4) embedded and fixed at the four corners of its top surface; the upper end of the electric lifting rod (4) is equipped with an automatic horizontal moving frame (5), and the automatic horizontal moving frame (5) is equipped with an automatic pressing frame (6) that can move horizontally along it; the automatic pressing frame (6) is evenly equipped with multiple liquid suction components (7) for liquid suction and drainage; the automatic horizontal moving frame (5) includes a support frame (501) set on the electric lifting rod (4), a sliding rod (502) welded to the side of the support frame (501), and two ends. A long screw (503) is inserted into the through hole of the corresponding support frame (501), a C-shaped frame (504) is slidably sleeved on the slide rod (502), and a No. 1 motor (505) is fixedly assembled in the through hole at the upper end of one of the support frames (501); the long screw (503) passes through the threaded through hole on the C-shaped frame (504) and is threadedly engaged with it, and the output shaft of the No. 1 motor (505) is connected to one end of the long screw (503) for driving the C-shaped frame (504) to move horizontally back and forth along the slide rod (502).

2. The standard curve configuration device according to claim 1, characterized in that, The automatic pressing frame (6) includes an H-shaped frame (601) set at the lower end of the C-shaped frame (504), a rubber sleeve (602) embedded in the rounded corner through hole at the lower end of the H-shaped frame (601), two sliding plates (603) inserted into the rubber sleeve (602) at both ends, a short screw (604) passing through the threaded through hole opened near both ends of the H-shaped frame (601), a pressure plate (605) sleeved at the lower end of the short screw (604), an iron strip (606) fixed to the bottom surface of the pressure plate (605), a movable plate (607) with both ends clamped in the sliding groove opened at the upper end of the H-shaped frame (601), and a second motor (608) fixedly assembled in the round frame at both ends of the movable plate (607); the output shaft of the second motor (608) is connected to the upper end of the short screw (604) for driving the pressure plate (605) and the movable plate (607) to rise and fall synchronously.

3. The standard curve configuration device according to claim 2, characterized in that, The liquid suction assembly (7) includes multiple rounded sliding frames (701) evenly distributed on two sliding plates (603), rounded rubber sleeves (702) fixed inside the rounded sliding frames (701), rubber short sleeves (703) fixedly fitted at both ends of the central short tube of the rounded sliding frames (701), a compressed air cylinder (704) fitted at the upper end of the central short tube of the rounded sliding frames (701), a magnet (705) fixed on the top surface of the compressed air cylinder (704), and a disposable liquid suction tube (706) fitted at the lower end of the central short tube of the rounded sliding frames (701); the top surface of the magnet (705) is adsorbed and connected to the bottom surface of the iron strip (606) to realize the linkage between the compressed air cylinder (704) and the pressure plate (605).

4. The standard curve configuration device according to claim 3, characterized in that, The inner side of the rounded corner rubber sleeve (702) is uniformly provided with multiple annular grooves to enhance the stability of the fit with the slide plate (603); the outer side of the rubber short sleeve (703) is uniformly provided with multiple annular grooves to improve the sealing performance.

5. A standard curve configuration device according to claim 4, characterized in that, The inner side of the rubber sleeve (602) is provided with a plurality of annular grooves for enhancing the friction with the slide plate (603), and its side is provided with rounded protrusions for easy gripping.

6. A standard curve configuration device according to claim 3, characterized in that, The side of the rounded sliding frame (701) is provided with rounded protrusions to facilitate its sliding along the sliding plate (603).

7. The standard curve configuration device according to claim 1, characterized in that, The experimental workbench (1) has a rounded rubber pad (3) with scale lines fixed in the middle of its top surface.

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