Liquid absorption experiment table

Abstract

The utility model belongs to the field of chemical analysis, and discloses a liquid suction experiment table which comprises a clamping device used for elastically clamping and fixing a liquid suction pipe and further comprises a table device used for bearing and placing a chemical analysis appliance, and a limiting device used for three-dimensional sliding auxiliary accurate positioning is installed on the table device. The clamping device is rotationally mounted on the limiting device; the table device comprises a table plate, a blocking edge is arranged on the circumference of the table plate, and a sewage draining assembly is arranged behind the table plate; the limiting device comprises a longitudinal moving assembly used for longitudinally sliding front and back, a lifting assembly used for lifting up and down and transversely sliding is installed on the longitudinal moving assembly, and damping rubber mats used for sliding after force is applied are arranged between the sliding surfaces. According to the liquid suction experiment table, three-dimensional fine adjustment of the liquid suction pipe is achieved through cooperative sliding of the longitudinal moving assembly, the lifting assembly and the transverse moving assembly (matched with the damping design of the rubber mat), it is guaranteed that positioning is accurate when a reagent is sucked, and manual operation errors are avoided.

Description

Technical Field

[0001] This utility model belongs to the field of chemical analysis, and in particular relates to a liquid aspiration experimental platform. Background Technology

[0002] Liquid aspiration workbenches are essential laboratory equipment for liquid handling and analysis, widely used in experiments in chemistry, biology, and medicine. Their design typically employs corrosion-resistant and easy-to-clean materials, such as stainless steel or special resins, ensuring stability and safety when in contact with various chemical reagents. In terms of safety, liquid aspiration workbenches generally meet international laboratory safety standards, possessing fire-resistant and explosion-proof features. Some special models are also equipped with emergency stop devices to ensure a safe and controllable experimental process.

[0003] Comparing with Chinese Patent No. CN215878019U, a liquid aspiration experimental platform for chemical analysis is disclosed. The frame includes a base plate and a fixed rod. The fixed rod is fixedly connected to the bottom of the base plate, and a support column is fixedly connected to the bottom of the fixed rod. An operating frame is fixedly connected to the upper surface of the base plate. The operating frame includes a movable rod and a fixed plate. The fixed plate is fixedly connected to the top left side of the movable rod, and a fixed power supply is fixedly connected to the top of the fixed plate. A movable rod is fixedly connected to the left side of the fixed power supply. A pipette is encased inside the movable rod, and a storage tube is fixedly installed on the bottom outer surface of the pipette. During use, the support can be extended or retracted, facilitating removal from the storage tube after liquid aspiration. The operating platform can also be adjusted in height according to the user's height, making it more convenient for users with varying heights.

[0004] However, the aforementioned patent can only clamp and lift the suction tube in a fixed position, which greatly reduces the flexibility, convenience and accuracy of suction tube operation. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of this invention is to provide a liquid aspiration experimental platform to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A liquid aspiration experimental table includes a clamping device for elastically holding and fixing a liquid aspiration tube, and a table device for supporting and placing chemical analysis instruments. The table device is equipped with a limiting device for three-dimensional sliding-assisted precise positioning, and the clamping device is rotatably mounted on the limiting device. The table device includes a tabletop with four supporting legs evenly distributed at the four corners of its bottom. A retaining flange is provided around the circumference of the tabletop, and a drainage component is located behind the tabletop. The limiting device includes a longitudinal sliding component for forward and backward longitudinal sliding, and a lifting component for vertical lifting and lateral sliding is installed on the longitudinal sliding component. Damping pads are provided between each sliding surface to allow sliding only after force is applied.

[0008] Furthermore: the clamping device includes a cantilever rod, a fixed clamp is fixedly installed at the end of the cantilever rod, a movable clamp is provided on one side of the fixed clamp, and the movable clamp and the fixed clamp are connected by a spring-loaded assembly.

[0009] Furthermore: the spring-loaded assembly includes a limiting slide bar provided at the end of the movable clamp, the limiting slide bar slides through the fixed clamp, the end of the limiting slide bar is provided with a pressing plate, and the limiting slide bar is provided with a return spring.

[0010] Furthermore, the fixed clamp and the movable clamp are corresponding arc shapes, and anti-slip pads are respectively attached to their opposite surfaces.

[0011] Furthermore: the sewage discharge assembly includes a rigid straight pipe welded to the back of the tabletop, and a flexible rubber tube is installed at the bottom end of the rigid straight pipe.

[0012] Furthermore: the longitudinal movement component includes two symmetrically arranged longitudinal movement guide rails, a longitudinal movement slider is slidably mounted on the longitudinal movement guide rails, and a vertical column is mounted on the longitudinal movement slider; the lifting component includes a transverse movement guide rail, two lifting sleeves are symmetrically arranged at both ends of the transverse movement guide rail, a transverse movement slider is slidably mounted on the transverse movement guide rails, and a connecting seat is provided on the transverse movement slider.

[0013] Furthermore: the connecting seat is cylindrical, and the clamping device is connected to the connecting seat by a bearing.

[0014] Compared with existing technologies, the beneficial effects are:

[0015] 1. Through the coordinated sliding of the longitudinal, lifting, and lateral components (in conjunction with the rubber pad damping design), the three-dimensional fine adjustment of the suction tube is achieved, ensuring accurate positioning when drawing reagents and avoiding manual operation errors; the rubber pad design requires force to slide, which not only avoids misalignment but also maintains smooth adjustment, balancing operational accuracy and convenience.

[0016] 2. The bearing design of the connecting seat allows the clamping device to rotate. Combined with the linkage of the slide rail, it can adapt to experimental requirements at different angles and improve operational flexibility. The spring-loaded assembly (reset spring + limit slide bar) allows for clamping / releasing of the suction tube with one hand, saving time and avoiding the complex adjustments of traditional clamps.

[0017] 3. The wastewater discharge assembly (rigid straight pipe + flexible rubber hose) works in conjunction with the baffle to effectively collect waste liquid and guide it to a centralized treatment point, preventing waste liquid from overflowing and polluting the work surface or environment, and reducing the risk of corrosion; the baffle further prevents liquid splashing and ensures a clean experimental environment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the liquid aspiration experimental platform described in this utility model;

[0019] Figure 2 This is an axonometric view of the tabletop device of the liquid absorption experimental table described in this utility model;

[0020] Figure 3 This is a rear axonometric view of the tabletop device of the liquid aspiration experimental table described in this utility model;

[0021] Figure 4 This is a schematic diagram of the limiting device of the liquid aspiration test bench described in this utility model;

[0022] Figure 5 This is a schematic diagram of the clamping device of the liquid aspiration experimental table described in this utility model;

[0023] Figure 6 This is a top view of the clamping device of the liquid aspiration experimental table described in this utility model.

[0024] In the attached diagram, the following are the reference numerals: 101, tabletop; 102, support leg; 103, flange; 104, rigid tube; 105, flexible tube; 201, longitudinal guide rail; 202, longitudinal slider; 203, vertical column; 204, lifting sleeve; 205, transverse guide rail; 206, transverse slider; 207, connecting seat; 301, cantilever rod; 302, fixing clamp; 303, movable clamp; 304, anti-slip pad; 305, limit slider; 306, return spring; 307, pressing plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please seeFigures 1-6 A liquid aspiration experimental table includes a clamping device for elastically clamping and fixing a liquid aspiration tube, and a table device for supporting and placing chemical analysis instruments. The table device is equipped with a limiting device for three-dimensional sliding-assisted precise positioning, and the clamping device is rotatably mounted on the limiting device.

[0027] In this embodiment: the table device includes a tabletop 101, four supporting legs 102 are evenly distributed at the four corners of the bottom of the tabletop 101, a retaining flange 103 is provided around the circumference of the tabletop 101, and a sewage discharge component is provided behind the tabletop 101; the sewage discharge component includes a rigid straight pipe 104 welded to the back of the tabletop 101, and a flexible rubber tube 105 is installed at the bottom end of the rigid straight pipe 104; a beaker containing chemical reagents is placed on the tabletop 101, and after the experiment is completed, the waste liquid on the tabletop 101 is scraped into the rigid straight pipe 104 and flows into the centralized treatment position through the flexible rubber tube 105, and the retaining flange 103 prevents the waste liquid on the tabletop 101 from flowing out;

[0028] In this embodiment: the limiting device includes a longitudinal sliding component for forward and backward longitudinal sliding, and a lifting component for vertical lifting and lateral sliding is installed on the longitudinal sliding component. Damping pads are provided between each sliding surface to allow sliding only after force is applied. The longitudinal sliding component includes two symmetrically arranged longitudinal guide rails 201, on which a longitudinal slider 202 is slidably mounted, and a vertical column 203 is installed on the longitudinal slider 202. The lifting component includes a lateral guide rail 205, with two symmetrically arranged lifting sleeves 204 at both ends of the lateral guide rail 205. A horizontal sliding block 206 is slidably mounted on the 05, and a connecting seat 207 is provided on the horizontal sliding block 206; the connecting seat 207 is cylindrical, and the clamping device is connected to the connecting seat 207 by a bearing; the horizontal sliding block 206 is pushed to slide along the horizontal guide rail 205 by the cantilever rod 301 and the connecting seat 207, the horizontal guide rail 205 slides up and down along the vertical column 203 by the lifting sleeve 204, and the vertical column 203 slides back and forth along the longitudinal guide rail 201 by the longitudinal sliding block 202, so that the suction tube is inserted into the beaker and absorbs the chemical reagent, and transfers it to the analytical experimental position;

[0029] In this embodiment: the clamping device includes a cantilever rod 301, a fixed clamp 302 is fixedly installed at the end of the cantilever rod 301, a movable clamp 303 is provided on one side of the fixed clamp 302, and the movable clamp 303 and the fixed clamp 302 are connected by a spring-loaded assembly; the spring-loaded assembly includes a limiting slide rod 305 provided at the end of the movable clamp 303, the limiting slide rod 305 slides through the fixed clamp 302, a pressing plate 307 is provided at the end of the limiting slide rod 305, and a return spring 306 is provided on the limiting slide rod 305; the fixed clamp 302 and the movable clamp 303 are corresponding arc shapes, and their opposite surfaces are respectively pasted with Anti-slip pad 304; the press plate 307 compresses the reset spring 306 and pushes the limiting slide bar 305 to slide under the support of the fixed clamp 302, pushing the movable clamp 303 away from the fixed clamp 302, inserting the suction tube between the movable clamp 303 and the fixed clamp 302, releasing the press plate 307, the elastic force of the reset spring 306 pushes the press plate 307 to reset, the limiting slide bar 305 pulls the movable clamp 303 to reset, and cooperates with the fixed clamp 302 to clamp the suction tube through the anti-slip pad 304 to fix it, and then the movable clamp 303 and the fixed clamp 302 hold the suction tube and move it.

[0030] Working principle: First, place the beaker containing chemical reagents on the tabletop 101. Then, the pressing plate 307 compresses the return spring 306, pushing the limiting slide rod 305 to slide under the support of the fixed clamp 302, pushing the movable clamp 303 away from the fixed clamp 302. Insert the suction tube between the movable clamp 303 and the fixed clamp 302. Release the pressing plate 307, and the elastic force of the return spring 306 pushes the pressing plate 307 to reset. The limiting slide rod 305 pulls the movable clamp 303 to reset, cooperating with the fixed clamp 302 to clamp the suction tube securely through the anti-slip pad 304. Then, the movable clamp 303 and the fixed clamp 302... Clamp 302 holds the suction tube and moves it. The horizontal slider 206 is pushed to slide along the horizontal guide rail 205 through the cantilever rod 301 and the connecting seat 207. The horizontal guide rail 205 slides up and down along the vertical column 203 through the lifting sleeve 204. The vertical column 203 slides back and forth along the longitudinal guide rail 201 through the longitudinal slider 202, so that the suction tube is inserted into the beaker and absorbs the chemical reagent. It is then transferred to the analytical experimental position. After the experiment is completed, the waste liquid on the table 101 is scraped into the rigid tube 104 and flows into the centralized treatment position through the soft rubber tube 105. The baffle 103 prevents the waste liquid on the table 101 from flowing out.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquid aspiration experimental platform, comprising a clamping device for elastically clamping and fixing a liquid aspiration tube, characterized in that: It also includes a table device for supporting and placing chemical analysis instruments, wherein a limiting device for three-dimensional sliding-assisted precise positioning is installed on the table device, and the clamping device is rotatably mounted on the limiting device; The table device includes a tabletop (101), four supporting legs (102) are evenly distributed at the four corners of the bottom of the tabletop (101), a retaining edge (103) is provided around the circumference of the tabletop (101), and a sewage discharge component is provided behind the tabletop (101). The limiting device includes a longitudinal sliding component for forward and backward longitudinal sliding, and a lifting component for vertical lifting and lateral sliding is installed on the longitudinal sliding component. Damping rubber pads are provided between each sliding surface to allow sliding only after force is applied.

2. The liquid aspiration experimental platform according to claim 1, characterized in that: The clamping device includes a cantilever rod (301), a fixed clamp (302) is fixedly installed at the end of the cantilever rod (301), a movable clamp (303) is provided on one side of the fixed clamp (302), and the movable clamp (303) and the fixed clamp (302) are connected by a spring-loaded assembly.

3. The liquid aspiration experimental platform according to claim 2, characterized in that: The spring-loaded assembly includes a limiting slide bar (305) provided at the end of the movable clamp (303), the limiting slide bar (305) slides through the fixed clamp (302), a pressing plate (307) is provided at the end of the limiting slide bar (305), and a return spring (306) is provided on the limiting slide bar (305).

4. The liquid aspiration experimental platform according to claim 2, characterized in that: The fixed clip (302) and the movable clip (303) are corresponding arc shapes, and anti-slip pads (304) are respectively pasted on their opposite surfaces.

5. The liquid aspiration experimental platform according to claim 1, characterized in that: The sewage discharge assembly includes a rigid tube (104) welded to the back of the tabletop (101), and a soft rubber tube (105) is installed at the bottom end of the rigid tube (104).

6. The liquid aspiration experimental platform according to claim 1, characterized in that: The longitudinal movement component includes two symmetrically arranged longitudinal movement guides (201), on which a longitudinal movement slider (202) is slidably mounted, and a vertical column (203) is mounted on the longitudinal movement slider (202); the lifting component includes a transverse movement guide (205), on which two lifting sleeves (204) are symmetrically arranged at both ends, on which a transverse movement slider (206) is slidably mounted, and a connecting seat (207) is provided on the transverse movement slider (206).

7. The liquid aspiration experimental platform according to claim 6, characterized in that: The connecting seat (207) is cylindrical, and the clamping device is connected to the connecting seat (207) by a bearing.

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