Laboratory liquid feeding device

Abstract

The utility model relates to the technical field of liquid quantifying equipment, and discloses a laboratory liquid feeding device which comprises a base, a supporting block is fixedly connected to the upper surface of the base, a friction pad is fixedly connected to the upper surface of the base, the supporting block is in an L shape, and a mounting block is fixedly connected to the outer surface of the side, away from a vertical block, of a transverse block of the supporting block. The laboratory liquid feeding device comprises a mounting block, a feeding mechanism is arranged on the mounting block, the feeding mechanism comprises a measuring cylinder, and a plurality of sliding grooves extending out of the lower surface of the mounting block are formed in the upper surface of the mounting block. When the controller controls the starting time of the electric push rod, the corresponding amount of experimental liquid can be controlled to be injected into the measuring cup, operation is accurate and easy, manual injection of the experimental liquid is not needed, manpower is saved, the experimental accuracy is guaranteed, the operation time is shortened, the working efficiency is improved, and the feeding accuracy degree of the laboratory liquid is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid quantitative equipment, in particular to a laboratory liquid feeding device. Background Art

[0002] A laboratory is a place where experiments are conducted. It is the cradle of science, the base of scientific research, the source of scientific and technological development, and plays a very important role in the development of science and technology. Laboratories can be divided into three categories according to their affiliation: the first category is experiments that are affiliated with universities or managed by universities; the second category of laboratories belong to national institutions, and some are even international institutions; the third category of laboratories are directly affiliated with industrial enterprises and serve the development and research of industrial technology.

[0003] In chemical or physical experiments, different types of liquids are often required to be mixed for experiments; however, operators often quantitatively feed the liquids one by one. The existing quantitative addition of experimental liquids generally relies on manual control, which is troublesome and laborious, and the efficiency of manual control addition is low, which prolongs the operation time of the experiment and affects the efficiency of the experiment. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a laboratory liquid feeding device, which is equipped with an electric push rod that can drive a piston to push a quantitative unit of experimental liquid downward every second, and then when the controller controls the time to start the electric push rod, it can control the injection of a corresponding amount of experimental liquid into the measuring cup. The operation is precise and simple, and there is no need to manually inject the experimental liquid, which saves manpower, ensures the accuracy of the experiment, and thus reduces the operation time, improves work efficiency, and increases the accuracy of laboratory liquid feeding, etc. The utility model solves the problem that in chemical or physical experiments, different types of liquids are often required to be mixed for experiments; but operators often feed the liquids one by one in a quantitative manner. The existing quantitative addition of the experimental liquid generally relies on manual control, which is troublesome and laborious, and the manual control addition efficiency is low, which prolongs the operation time of the experiment and affects the efficiency of the experiment.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laboratory liquid feeding device, comprising a base, the upper surface of which is fixedly connected with a support block;

[0008] Wherein, a friction pad is fixedly connected to the upper surface of the base;

[0009] The support block is L-shaped, and the outer surface of the side of the horizontal block of the support block away from the vertical block is fixedly connected with a mounting block;

[0010] Wherein, a feeding mechanism is arranged on the mounting block;

[0011] The feeding mechanism includes a measuring cylinder, and the upper surface of the mounting block is provided with a plurality of sliding grooves extending from the lower surface thereof;

[0012] Wherein, the measuring cylinder is slidably connected with the sliding groove;

[0013] Wherein, a positioning ring is fixedly sleeved on the outer surface of the measuring cylinder;

[0014] Among them, the measuring cylinder is made of transparent glass material, and a scale is arranged outside the measuring cylinder;

[0015] Wherein, a feeding pipe communicating with the interior of the measuring cylinder is fixedly connected to the lower surface of the measuring cylinder;

[0016] Wherein, a piston is slidably connected in the measuring cylinder;

[0017] Wherein, a positioning rod is fixedly connected to the upper surface of the piston;

[0018] Wherein, the upper end of the positioning rod extends out of the upper surface of the measuring cylinder;

[0019] Wherein, the upper end of the positioning rod is fixedly connected with a positioning plate;

[0020] Wherein, the upper surface of the mounting block is fixedly connected with an electric push rod.

[0021] Preferably, the telescopic end of the electric push rod is fixedly connected to the lower surface of the positioning plate.

[0022] Preferably, a measuring cup is provided on the friction pad;

[0023] Wherein, a controller is arranged on the base, and the controller is electrically connected to the electric push rod.

[0024] (III) Beneficial effects

[0025] Compared with the prior art, the utility model provides a laboratory liquid feeding device having the following

[0026] Beneficial effects:

[0027] 1. The laboratory liquid feeding device, the electric push rod can drive the piston to push the quantitative unit of experimental liquid downward every second, and then when the controller controls the time to start the electric push rod, it can control the injection of the corresponding amount of experimental liquid into the measuring cup. The operation is precise and simple, and there is no need to manually inject the experimental liquid, which saves manpower and ensures the accuracy of the experiment, thereby reducing the operation time, improving work efficiency, and increasing the accuracy of laboratory liquid feeding.

[0028] 2. The laboratory liquid feeding device, when the electric push rod is started, drives the piston to move upward until the piston moves out of the measuring cylinder and the measuring cylinder can be pulled out upward, and then the measuring cylinder can be cleaned, which is easy to operate and increases the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of a laboratory liquid feeding device of the utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the measuring cylinder of the utility model;

[0031] Figure 3 This is a schematic diagram of the installation block structure of the utility model.

[0032] In the figure: 1. base; 2. friction pad; 3. measuring cup; 4. support block; 5. mounting block; 6. sliding groove; 7. measuring cylinder; 8. scale; 9. positioning ring; 10. electric push rod; 11. positioning plate; 12. positioning rod; 13. piston. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] The present invention is further described below in conjunction with the embodiments. The devices, connection structures and methods involved in the present invention, unless otherwise specified, are all devices, connection structures and methods known in the art. It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present disclosure.

[0035] Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those generally understood by those of ordinary skill in the art to which the present disclosure belongs. It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations and / or combinations thereof.

[0036] See also Figure 1-3 , the utility model provides a new technical solution: a laboratory liquid feeding device, comprising a base 1, the upper surface of the base 1 is fixedly connected with a support block 4;

[0037] Wherein, a friction pad 2 is fixedly connected to the upper surface of the base 1;

[0038] The support block 4 is L-shaped, and the outer surface of the side of the horizontal block of the support block 4 away from the vertical block is fixedly connected with the mounting block 5;

[0039] Among them, a feeding mechanism is arranged on the mounting block 5 .

[0040] Furthermore, the feeding mechanism includes a measuring cylinder 7, and the upper surface of the mounting block 5 is provided with a plurality of sliding grooves 6 extending from the lower surface thereof;

[0041] Wherein, the measuring cylinder 7 is slidably connected with the sliding groove 6;

[0042] Wherein, a positioning ring 9 is fixedly sleeved on the outer surface of the measuring cylinder 7 .

[0043] Furthermore, the measuring cylinder 7 is made of transparent glass, and a scale 8 is arranged outside the measuring cylinder 7;

[0044] Among them, the lower surface of the measuring cylinder 7 is fixedly connected with a feeding pipe communicating with the interior thereof;

[0045] A piston 13 is slidably connected inside the measuring cylinder 7 .

[0046] Furthermore, a positioning rod 12 is fixedly connected to the upper surface of the piston 13;

[0047] The upper end of the positioning rod 12 extends out of the upper surface of the measuring cylinder 7;

[0048] The upper end of the positioning rod 12 is fixedly connected to the positioning plate 11 .

[0049] Furthermore, an electric push rod 10 is fixedly connected to the upper surface of the mounting block 5;

[0050] The telescopic end of the electric push rod 10 is fixedly connected to the lower surface of the positioning plate 11 .

[0051] Furthermore, a measuring cup 3 is provided on the friction pad 2;

[0052] A controller is disposed on the base 1 , and the controller is electrically connected to the electric push rod 10 .

[0053] Furthermore, when the present solution is used, the feeding tube is immersed in the experimental liquid, and then the electric push rod 10 is started to drive the piston 13 to move upward, thereby synchronously driving the piston 13 to move upward to draw the experimental liquid into the measuring cylinder 7.

[0054] Furthermore, when the electric push rod 10 is started, the positioning plate 11, the positioning rod 12, and the piston 13 can be driven to move up and down. The downward displacement of the piston 13 can push the experimental liquid in the piston 13 downward into the measuring cylinder 7, thereby injecting the experimental liquid in the measuring cylinder 7 into the measuring cup 3. In this solution, the electric push rod 10 can drive the piston 13 to push a quantitative unit of experimental liquid downward every second, and then when the controller controls the time to start the electric push rod 10, it can control the injection of a corresponding amount of experimental liquid into the measuring cup 3. The operation is precise and simple, and there is no need to manually inject the experimental liquid, which saves manpower, ensures the accuracy of the experiment, and thereby reduces the operation time, improves work efficiency, and thereby increases the accuracy of laboratory liquid feeding.

[0055] Furthermore, when the present solution is used, the electric push rod 10 is started to drive the piston 13 to move upward until the piston 13 moves out of the measuring cylinder 7 and the measuring cylinder 7 can be pulled out upward, and then the measuring cylinder 7 can be cleaned, which is easy to operate and increases the practicality of the device.

[0056] Furthermore, when in use, the electric push rod 10 can drive the piston 13 to push downward a quantitative unit of experimental liquid per second. In this solution, the quantitative unit can be 1ml, 0.2ml, 0, 5ml, etc., and the quantitative unit is appropriately specified according to the specifications of the scale and the measuring cup 3.

[0057] Working principle: When the device is used, the feeding tube is immersed in the experimental liquid, and then the electric push rod 10 is started to drive the piston 13 to move upward, and then the piston 13 is synchronously driven to move upward to draw the experimental liquid into the measuring cylinder 7.

[0058] Furthermore, when the electric push rod 10 is started, the positioning plate 11, the positioning rod 12, and the piston 13 can be driven to move up and down. The downward displacement of the piston 13 can push the experimental liquid in the piston 13 downward into the measuring cylinder 7, thereby injecting the experimental liquid in the measuring cylinder 7 into the measuring cup 3. In this solution, the electric push rod 10 can drive the piston 13 to push a quantitative unit of experimental liquid downward every second, and then when the controller controls the time to start the electric push rod 10, it can control the injection of a corresponding amount of experimental liquid into the measuring cup 3. The operation is precise and simple, and there is no need to manually inject the experimental liquid, which saves manpower, ensures the accuracy of the experiment, and thereby reduces the operation time, improves work efficiency, and thereby increases the accuracy of laboratory liquid feeding.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laboratory liquid feeding device, comprising a base (1), characterized in that: A support block (4) is fixedly connected to the upper surface of the base (1); Wherein, a friction pad (2) is fixedly connected to the upper surface of the base (1); The support block (4) is L-shaped, and the outer surface of the side of the horizontal block of the support block (4) away from the vertical block is fixedly connected to the mounting block (5); Wherein, a feeding mechanism is arranged on the mounting block (5); The feeding mechanism comprises a measuring cylinder (7), and the upper surface of the mounting block (5) is provided with a plurality of sliding grooves (6) extending from the lower surface thereof; Wherein, the measuring cylinder (7) is slidably connected to the sliding groove (6); Wherein, a positioning ring (9) is fixedly sleeved on the outer surface of the measuring cylinder (7); Wherein, the measuring cylinder (7) is made of transparent glass material, and a scale (8) is arranged outside the measuring cylinder (7); Wherein, a feeding pipe communicating with the interior of the measuring cylinder (7) is fixedly connected to the lower surface of the measuring cylinder (7); Wherein, a piston (13) is slidably connected inside the measuring cylinder (7); Wherein, a positioning rod (12) is fixedly connected to the upper surface of the piston (13); Wherein, the upper end of the positioning rod (12) extends out of the upper surface of the measuring cylinder (7); Wherein, the upper end of the positioning rod (12) is fixedly connected to the positioning plate (11); Wherein, an electric push rod (10) is fixedly connected to the upper surface of the mounting block (5).

2. A laboratory liquid feeding device according to claim 1, characterized in that: The telescopic end of the electric push rod (10) is fixedly connected to the lower surface of the positioning plate (11).

3. A laboratory liquid feeding device according to claim 2, characterized in that: A measuring cup (3) is provided on the friction pad (2); Wherein, a controller is arranged on the base (1), and the controller is electrically connected to the electric push rod (10).

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