Automatic quantitative liquid adding device for reagent bottle

Abstract

The utility model discloses an automatic quantitative liquid adding device for a reagent bottle, which comprises a bottle body and a support frame arranged at the lower end of the bottle body, the side wall of the bottle body is communicated with a liquid guide pipe, a liquid squeezing cylinder is arranged above the liquid guide pipe, the liquid guide pipe and the liquid squeezing cylinder are connected with each other through a connecting mechanism, an inner cavity is arranged in the liquid squeezing cylinder, and the inner cavity is communicated with the support frame. The inner cavity is communicated with the interior of the bottle body; a U-shaped pipe is fixedly arranged in the bottle body, one end of the U-shaped pipe is communicated with the liquid guide pipe, a liquid through hole is formed in the side wall of the lower end of the U-shaped pipe in a penetrating mode, a one-way valve is arranged at the liquid through hole, and a liquid squeezing mechanism is movably arranged at the other end of the U-shaped pipe. The utility model relates to the technical field of reagent bottles. According to the automatic quantitative liquid adding device for the reagent bottle, direct contact with hazardous chemical substances is avoided, the operation safety risk is greatly reduced, the scattering harm in the hazardous chemical substance transferring process is reduced, the accurate liquid transferring effect is achieved, and meanwhile standard liquid of different volumes can be transferred according to needs.

Description

Technical Field

[0001] The utility model relates to the technical field of reagent bottles, in particular to an automatic quantitative liquid adding device for a reagent bottle. Background Art

[0002] Chemical reagent bottles are containers used to store various chemical reagents, usually made of glass or plastic. These bottles are designed to safely store various chemicals and are usually labeled with information such as the name of the reagent, chemical properties, hazards, and precautions for use;

[0003] When preparing chemical reagents, pipetting or measuring required solutions, the conventional operation is to pour the prepared mixed solution into a designated beaker or volumetric flask. Since the prepared reagent bottles are too large, they are inconvenient to move and the solution may cause hazardous chemicals to spill during the movement of the reagent bottles. At the same time, if the beaker and volumetric flask have too small a diameter, it is easy to cause spillage during the pipetting process and personnel to be corroded by strong acid and alkali solutions. When pipetting is performed manually, it is easy to cause the sampling volume to be inaccurate, too much or too little, and it is difficult to make up for it.

[0004] Therefore, the utility model provides an automatic quantitative liquid adding device for a reagent bottle to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the utility model provides an automatic quantitative liquid adding device for a reagent bottle, which solves the above-mentioned problems.

[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: an automatic quantitative liquid adding device for a reagent bottle, comprising a bottle body and a support frame arranged at the lower end of the bottle body, a liquid guide tube is connected to the side wall of the bottle body, a liquid squeezing cylinder is arranged above the liquid guide tube, the liquid guide tube and the liquid squeezing cylinder are connected to each other through a connecting mechanism, an inner cavity is arranged in the liquid squeezing cylinder, and the inner cavity and the bottle body are connected to each other;

[0007] A U-shaped tube is fixedly arranged in the bottle body, one end of the U-shaped tube is connected with the liquid guide tube, a liquid through hole is penetrated at the side wall of the lower end of the U-shaped tube, a one-way valve is arranged at the liquid through hole, a liquid squeezing mechanism is movably arranged at the other end of the U-shaped tube, and a measuring mechanism corresponding to the liquid squeezing mechanism is arranged on the surface of the liquid squeezing cylinder;

[0008] The liquid squeezing mechanism includes a sealing push plate slidably arranged in the other end of the U-shaped tube, a connecting rod is fixedly provided on the upper wall of the sealing push plate, a movable groove is opened on the side wall of the inner cavity, a toggle block slides in the movable groove, and a connecting plate is fixedly connected between the upper end of the connecting rod and the toggle block.

[0009] Preferably, the connection mechanism comprises a connection cylinder which is fixedly connected to the upper end of the liquid guiding tube, and a mounting cylinder is fixedly connected to the lower end of the liquid squeezing cylinder, and the mounting cylinder and the connection cylinder are connected by threaded mounting.

[0010] Preferably, a cover body is threadedly connected to the upper opening of the squeezing cylinder, and the cover body is made of a transparent acrylic plate.

[0011] Preferably, the measuring mechanism comprises an indicating block fixedly arranged on the side wall of the toggle block, and the surface of the squeezing cylinder is correspondingly engraved with scale lines.

[0012] Preferably, a protective ring is fixedly provided on the support frame, the protective ring is arranged around the bottle body, and the support frame and the protective ring are integrally formed. Beneficial Effects

[0013] The utility model provides an automatic quantitative liquid adding device for a reagent bottle. Compared with the prior art, it has the following beneficial effects:

[0014] (1) The automatic quantitative liquid adding device for reagent bottles can reflect the amount of chemical reagent discharged from the liquid guide tube by the amount of reagent pushed out when the sealing push plate descends. The cross-sectional area of ​​the U-shaped tube and the cross-sectional area of ​​the liquid guide tube can be adjusted as needed to achieve a correspondence between the descending height of the toggle block and the amount of reagent discharged from the liquid guide tube, thereby improving the application range of the device and avoiding direct contact with hazardous chemicals, greatly reducing the safety risk of operation, and reducing the hazard of spillage during the transfer of hazardous chemicals.

[0015] (2) The automatic quantitative liquid adding device for the reagent bottle can adjust the height of the liquid guide tube on the side wall of the bottle body and the replenishment of the reagent in the bottle body as needed to ensure that the liquid level in the bottle body is always higher than the height of the plane where the upper end of the liquid guide tube is located, so that the liquid guide tube is always in a full discharge state when discharging the reagent, preventing the scale line from failing to well reflect the amount of reagent discharged, and having a precise pipetting effect. At the same time, different volumes of standard liquid can be pipetted as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front structure of an automatic quantitative liquid adding device for a reagent bottle proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of an automatic quantitative liquid adding device for a reagent bottle proposed by the utility model;

[0018] Figure 3 It is a schematic cross-sectional view of the internal structure of an automatic quantitative liquid adding device for a reagent bottle proposed by the utility model;

[0019] Figure 4It is a cross-sectional schematic diagram of the internal structure of the automatic quantitative liquid adding device for a reagent bottle proposed by the utility model from another angle.

[0020] In the figure, 1, bottle body; 2, support frame; 3, protective ring; 4, liquid guide tube; 5, liquid squeezing cylinder; 6, mounting cylinder; 7, connecting cylinder; 8, cover body; 9, inner cavity; 10, connecting rod; 11, toggle block; 12, scale line; 13, indicator block; 14, connecting plate; 15, movable groove; 16, U-shaped tube; 17, liquid hole; 18, sealing push plate. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 , an automatic quantitative liquid adding device for a reagent bottle, comprising a bottle body 1 and a support frame 2 arranged at the lower end of the bottle body 1, a liquid guide tube 4 is connected to the side wall of the bottle body 1, a liquid squeezing cylinder 5 is arranged above the liquid guide tube 4, the liquid guide tube 4 and the liquid squeezing cylinder 5 are connected to each other through a connecting mechanism, an inner cavity 9 is arranged in the liquid squeezing cylinder 5, and the inner cavity 9 and the bottle body 1 are connected to each other;

[0023] A U-shaped tube 16 is fixedly provided in the bottle body 1, one end of the U-shaped tube 16 is connected to the liquid guiding tube 4, a liquid through hole 17 is penetrated at the side wall of the lower end of the U-shaped tube 16, a one-way valve is provided at the liquid through hole 17, and a liquid squeezing mechanism is movably provided at the other end of the U-shaped tube 16, and a measuring mechanism corresponding to the liquid squeezing mechanism is provided on the surface of the squeezing cylinder 5, and the cross-sectional area of ​​the U-shaped tube 16 and the cross-sectional area of ​​the liquid guiding tube 4 can be adjusted as needed to achieve the corresponding height of the lowering of the toggle block 11 and the amount of reagent discharged from the liquid guiding tube 4, thereby improving the application range of the device;

[0024] The liquid squeezing mechanism includes a sealing push plate 18 slidably arranged in the other end of the U-shaped tube 16, a connecting rod 10 is fixedly provided on the upper wall of the sealing push plate 18, a movable groove 15 is opened on the side wall of the inner cavity 9, a toggle block 11 slides in the movable groove 15, and a connecting plate 14 is fixedly connected between the upper end of the connecting rod 10 and the toggle block 11.

[0025] In an optional embodiment: the connection mechanism includes a connection cylinder 7 fixedly connected to the upper end of the liquid guiding tube 4, and the lower end of the liquid squeezing cylinder 5 is connected to the installation cylinder 6, and the installation cylinder 6 and the connection cylinder 7 are connected by threaded installation.

[0026] It should be noted that chemical reagents are loaded into the bottle body 1, and then the bottle body 1 and the squeezing cylinder 5 are connected by threaded installation, so that the connection between the two is simple and convenient, and they can be well installed. The device is easy to use, low in cost, does not need to be charged, and can be disassembled at any time.

[0027] In an optional embodiment: a cover body 8 is threadedly connected to the upper opening of the squeezing cylinder 5, and the cover body 8 is made of a transparent acrylic plate.

[0028] It should be noted that it is convenient to directly replenish the chemical reagent from the upper end of the squeezing cylinder 5, and through the transparent setting of the cover body 8, the bottle body 1 or the squeezing cylinder 5 can be observed and adjusted at any time.

[0029] In an optional embodiment: the measuring mechanism includes an indicating block 13 fixedly arranged on the side wall of the toggle block 11 , and the surface of the squeezing cylinder 5 is correspondingly engraved with scale lines 12 .

[0030] It should be noted that, according to the required amount, the dial block 11 can be pushed downwards by the indication of the scale line 12 and the indicator block 13 , so that the sealing push plate 18 pushes the chemical reagent in the U-shaped tube 16 .

[0031] In an optional embodiment: a protective ring 3 is fixedly provided on the support frame 2, the protective ring 3 is arranged around the bottle body 1, and the support frame 2 and the protective ring 3 are integrally formed.

[0032] It should be noted that the bottle body 1 is supported and limited, and the structure between the support frame 2 and the protective ring 3 is prevented from falling off, thereby ensuring the support safety of the bottle body 1.

[0033] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] When the device is in use, the chemical reagent is loaded into the bottle body 1, and then the bottle body 1 and the squeezing cylinder 5 are connected by threaded installation. At the same time, the sealing push plate 18 is pushed into one end of the U-shaped tube 16. Then, according to the required amount, the dial block 11 can be pushed downward according to the indication of the scale line 12 and the indicator block 13, so that the sealing push plate 18 pushes the chemical reagent in the U-shaped tube 16. Due to the setting of the one-way valve at the liquid through hole 17, when the sealing push plate 18 squeezes the reagent in the U-shaped tube 16, the reagent will not flow out from the liquid through hole 17, so that the amount of reagent pushed out when the sealing push plate 18 descends is the amount of chemical reagent discharged from the liquid guide tube 4. The cross-sectional area of ​​the U-shaped tube 16 and the cross-sectional area of ​​the liquid guide tube 4 can be adjusted as needed to achieve a corresponding height of the dial block 11 descending and the amount of reagent discharged from the liquid guide tube 4, thereby improving the application range of the device;

[0035] After each downward movement of the toggle block 11 to push the reagent out of the liquid guiding tube 4, or when the toggle block 11 is moved to the lower end of the movable groove 15, the toggle block 11 can be pulled upward to the initial position. During this process, the chemical reagent in the bottle body 1 re-enters the U-shaped tube 16 from the liquid through hole 17. The device can adjust the height of the liquid guiding tube 4 on the side wall of the bottle body 1 and the replenishment of the reagent in the bottle body 1 as needed to ensure that the liquid level in the bottle body 1 is always higher than the height of the plane where the upper end of the liquid guiding tube 4 is located, so that the liquid guiding tube 4 is always in a full discharge state when discharging the reagent, to prevent the scale line 12 from failing to well reflect the amount of reagent discharged.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] 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. An automatic quantitative liquid adding device for a reagent bottle, comprising a bottle body (1) and a support frame (2) arranged at the lower end of the bottle body (1), characterized in that: A liquid guide tube (4) is provided on the side wall of the bottle body (1), a liquid squeezing cylinder (5) is provided above the liquid guide tube (4), the liquid guide tube (4) and the liquid squeezing cylinder (5) are connected to each other via a connecting mechanism, an inner cavity (9) is provided in the liquid squeezing cylinder (5), and the inner cavity (9) and the bottle body (1) are connected to each other; A U-shaped tube (16) is fixedly provided in the bottle body (1), one end of the U-shaped tube (16) and the liquid guide tube (4) are in communication with each other, a liquid through hole (17) is penetrated through the side wall of the lower end of the U-shaped tube (16), a one-way valve is provided at the liquid through hole (17), a liquid squeezing mechanism is movably provided at the other end of the U-shaped tube (16), and a measuring mechanism corresponding to the liquid squeezing mechanism is provided on the surface of the liquid squeezing cylinder (5); The liquid squeezing mechanism comprises a sealing push plate (18) slidably arranged in the other end of the U-shaped tube (16), a connecting rod (10) is fixedly arranged on the upper wall of the sealing push plate (18), a movable groove (15) is opened on the side wall of the inner cavity (9), a toggle block (11) slides in the movable groove (15), and a connecting plate (14) is fixedly connected between the upper end of the connecting rod (10) and the toggle block (11).

2. The automatic quantitative liquid adding device for reagent bottles according to claim 1, characterized in that: The connection mechanism comprises a connection cylinder (7) which is connected and fixedly arranged at the upper end of the liquid guiding tube (4); the lower end of the liquid squeezing cylinder (5) is connected and fixedly arranged with a mounting cylinder (6); the mounting cylinder (6) and the connection cylinder (7) are connected by threaded mounting.

3. The automatic quantitative liquid adding device for reagent bottles according to claim 1, characterized in that: A cover body (8) is threadedly connected to the upper opening of the squeezing cylinder (5), and the cover body (8) is made of a transparent acrylic plate.

4. The automatic quantitative liquid adding device for reagent bottles according to claim 1, characterized in that: The measuring mechanism comprises an indicating block (13) fixedly arranged on the side wall of the toggle block (11), and a scale line (12) is correspondingly engraved on the surface of the squeezing cylinder (5).

5. The automatic quantitative liquid adding device for reagent bottles according to claim 1, characterized in that: A protective ring (3) is fixedly provided on the support frame (2); the protective ring (3) is arranged around the bottle body (1); and the support frame (2) and the protective ring (3) are integrally formed.

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