A liquid titration container for laboratory use

Abstract

This utility model belongs to the technical field of analytical chemistry experimental equipment and discloses an experimental liquid titration container, including a base, a liquid storage container on the top of the base, a positioning support frame on the outside of the liquid storage container, the positioning support frame on the base, a titrator connected to the top of the liquid storage container, a hot air injection component connected to one side of the liquid storage container, a container positioning component on the base, and a shaking component connected to the bottom of the container positioning component, the shaking component on the base. By integrating the liquid storage container and the titrator into an integrated sealed structure, the opportunity for external impurities to enter is reduced from the source. The shaking component replaces manual shaking through automated operation, completely eliminating the defects of unstable force and frequency in manual operation, and can also work with the container positioning component to form a stable fixation for the conical flask, fundamentally avoiding the risk of container breakage that may occur when manually shaking by hand.

Description

Technical Field

[0001] This utility model belongs to the technical field of analytical chemistry experimental equipment, specifically a liquid titration container for experiments. Background Technology

[0002] Laboratory liquid titration vessels are core and fundamental equipment for quantitative analysis in analytical chemistry. Based on the core principle of "reaction stoichiometry," they precisely control the amount of standard reagent of known concentration added, causing an observable characteristic reaction between the reagent and the sample within the reaction vessel. Then, based on the calculation relationship of "titer consumption × titrant concentration," the content of the target component in the sample is accurately determined. This is a classic quantitative method in chemical analysis that combines accuracy and economy. The applications of this type of equipment cover multiple fields: in chemical testing, it can be used for purity determination of industrial raw materials and quality control analysis of impurities in chemical products; in pharmaceutical research and development, it can monitor the content of intermediate products in drug synthesis and accurately identify the effective components of finished drugs; in environmental monitoring, it can detect indicators such as pH, hardness, and chemical oxygen demand in water quality, and can also be extended to food testing, agricultural testing, and other scenarios, providing key technical support for quality control and data support in various fields.

[0003] Traditional titration apparatuses typically consist of independent functional components, including a burette for precise measurement and addition of reagents, a reagent bottle for storing the standard reagent, a metal stand for securing the burette, and an Erlenmeyer flask as the reaction vessel. In some scenarios, auxiliary components such as pipettes and indicator droppers are also required. In practice, multiple coordinated steps must be performed manually: first, the standard reagent must be transferred from the reagent bottle to the burette using a glass rod; during titration, the stopcock or rubber tubing of the burette must be manually controlled to adjust the reagent addition rate; simultaneously, the Erlenmeyer flask must be held in the other hand and oscillated clockwise or counterclockwise at a uniform speed to ensure thorough mixing of the added reagent with the sample and complete reaction. The entire process relies heavily on the operator's experience, and the independence of each component makes the procedure cumbersome. Furthermore, careful attention must be paid to the coordination between components, demanding a high level of proficiency from novice operators.

[0004] However, existing technologies have significant shortcomings: First, traditional burettes and reagent bottles are independent of each other. When replenishing the solution, reagents need to be transferred by pouring or pipetting. During the operation, the reagents are easily exposed to air or contaminated with external impurities, leading to reagent contamination and affecting the accuracy of titration results. Second, after the titrant is added to the conical flask, it needs to be manually shaken to promote uniform reaction. However, the strength and frequency of manual shaking are difficult to control consistently, which can easily lead to incomplete reaction. Furthermore, hand fatigue or negligence during operation may cause the conical flask to break, posing a safety hazard. Third, after rinsing the storage container or burette, traditional containers have structural dead corners at the bottom or interface, which can easily leave liquid residue. This residual liquid can not only dilute the reagents used next time but may also react with new reagents, interfering with experimental results and hindering the reuse of the equipment.

[0005] Therefore, a liquid titration container for experiments is proposed to address the above problems. Summary of the Invention

[0006] To address the problems mentioned in the background art, this utility model provides a liquid titration container for experiments, which has the advantages of integrated sealing of the liquid storage container and titrator to block external impurities, hot air injection component to dry water stains after cleaning, automated shaking component to ensure uniform reaction, and container positioning component to avoid the risk of conical flask breakage, thereby improving titration accuracy and operational safety.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an experimental liquid titration container, including a base, a liquid storage container disposed on the top of the base, a positioning support frame disposed on the outside of the liquid storage container, the positioning support frame being disposed on the base, a titrator being connected to the top of the liquid storage container, a hot air injection component being connected to one side of the liquid storage container, a container positioning component being disposed on the base, and a shaking component being connected to the bottom of the container positioning component being disposed on the base.

[0008] Preferably, the liquid storage container has an injection port on one side near the top and a drain port at the bottom.

[0009] Preferably, the titrator includes a display screen, an operating knob, and a support arm on the housing, the support arm being connected to a titration outlet tube.

[0010] Preferably, the hot air injection assembly includes a hot air duct connected to the top of one side of the liquid storage container, and a hot air blower is connected to one end of the hot air duct, which is mounted on the base.

[0011] Preferably, the container positioning assembly includes a positioning disk on a base, the positioning disk having circumferentially distributed threaded holes, the threaded holes being threadedly connected to positioning bolts, and the end of the positioning bolts being provided with rubber heads.

[0012] Preferably, the shaking assembly includes a first gear fixedly connected to the bottom of the positioning disk via a rotating rod, the first gear meshing with a second gear, the second gear being connected to a drive motor via a motor shaft, and the drive motor, the second gear, and the first gear all being mounted on a base.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model integrates the liquid storage container and the titrator into an integrated sealed structure, which significantly simplifies the liquid replenishment operation. Liquid replenishment can be completed without frequent reagent transfer, reducing the chance of external impurities entering from the source, effectively ensuring the purity of the reagent, and thus improving the accuracy of the titration results. At the same time, the hot air injection component can introduce hot air into the liquid storage container and the titrator, which can quickly dry the water stains remaining after cleaning and avoid water stains interfering with the concentration of subsequent reagents. 2. The shaking component of this utility model replaces manual shaking with automated operation. It can ensure a full and uniform reaction through stable power output, completely eliminating the defects of unstable force and frequency in manual operation. It can also work with the container positioning component to form a stable fixation for the conical flask, fundamentally avoiding the risk of container breakage that may occur when shaking manually by hand, and significantly improving operational safety and experimental stability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the liquid storage container and hot air injection assembly of this utility model. Figure 3 This is a schematic diagram of the structure of the titrator of this utility model; Figure 4 This is a schematic diagram of the structure of the container positioning component of this utility model; Figure 5 This is a schematic diagram of the structure of the shaking component of this utility model.

[0015] In the diagram: 1. Base; 2. Liquid storage container; 3. Positioning support frame; 4. Titrator; 41. Display screen; 42. Operating knob; 43. Support arm; 44. Titration outlet tube; 5. Hot air injection assembly; 51. Hot air duct; 52. Hot air blower; 6. Container positioning assembly; 61. Positioning disc; 62. Threaded hole; 63. Positioning bolt; 64. Rubber head; 7. Shaking assembly; 71. First gear; 72. Second gear; 73. Drive motor; 8. Liquid injection port; 9. Liquid discharge port. Detailed Implementation

[0016] 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.

[0017] Example 1 like Figures 1 to 5 As shown, this utility model provides a liquid titration container for experiments, including a base 1. The base 1 is used to stably support all components of the entire device, ensuring structural stability during operation. A liquid storage container 2 is disposed above the base 1. The liquid storage container 2 is used to store titration reagents. Its integrated design with the titrator 4 reduces the reagent transfer process and lowers the risk of impurity contamination. A positioning support frame 3 is disposed on the outside of the liquid storage container 2. The positioning support frame 3 is used to fix the liquid storage container 2, preventing it from shaking or tipping over during operation, ensuring the stability of liquid storage and titration. The positioning support frame 3 is disposed on the base 1, and the top of the liquid storage container 2 is connected to... There is a titrator 4, which is used to precisely control the reagent dripping speed and dosage. A hot air injection component 5 is connected to one side of the liquid storage container 2. The hot air injection component 5 is used to inject hot air into the liquid storage container 2 to quickly dry the residual water stains inside after cleaning, so as to avoid water stains interfering with subsequent reagents. A container positioning component 6 is set on the base 1. The container positioning component 6 is used to fix reaction containers of different sizes and prevent them from shifting during the shaking process. A shaking component 7 is connected to the bottom of the container positioning component 6. The shaking component 7 is used to drive the reaction container to shake automatically, replacing manual operation to ensure the uniformity of the reaction. The shaking component 7 is set on the base 1.

[0018] Specifically, a liquid inlet 8 is provided on one side of the liquid storage container 2 near the top. The liquid inlet 8 is used to add reagents into the liquid storage container 2. Its position is designed to facilitate operation and reduce reagent spillage. A drain outlet 9 is provided at the bottom of the liquid storage container 2. The drain outlet 9 is used to drain residual reagents or cleaning waste liquid in the liquid storage container 2 to ensure that there is no liquid residue after cleaning and to facilitate the reuse of the equipment.

[0019] Furthermore, the titrator 4 includes a display screen 41, an operating knob 42, and a support arm 43 mounted on the outer casing. The display screen 41 can display data such as titration volume in real time for accurate recording. The operating knob 42 is used to adjust the dripping speed for fine control. The support arm 43 can flexibly adjust the position of the titration outlet tube 44 to ensure that the reagent is accurately dripped into the container below. The support arm 43 is connected to the titration outlet tube 44, which is used to accurately export the reagent into the reaction vessel.

[0020] Furthermore, the hot air injection assembly 5 includes a hot air duct 51 connected to the top of one side of the liquid storage container 2. The hot air duct 51 is used to guide hot air to enter the liquid storage container 2 stably. One end of the hot air duct 51 is connected to a hot air blower 52, which provides a hot air source and can adjust the wind speed and temperature to adapt to different drying needs. The hot air blower 52 is mounted on the base 1.

[0021] It is worth noting that the container positioning assembly 6 includes a positioning disk 61 mounted on the base 1. The positioning disk 61 provides a platform for placing the reaction container. The positioning disk 61 has circumferentially distributed threaded holes 62. The threaded holes 62 cooperate with the positioning bolts 63 to achieve position adjustment. The threaded holes 62 are threadedly connected to the positioning bolts 63. The positioning bolts 63 can be rotated to push the rubber head 64 close to the container. The end of the positioning bolts 63 is provided with rubber heads 64. The rubber heads 64 can avoid scratching the container and enhance friction, thereby improving the fixing effect.

[0022] It is worth noting that the shaking assembly 7 includes a first gear 71 fixedly connected to the bottom of the positioning disk 61 via a rotating rod. The first gear 71 meshes with the second gear 72 to transmit power. The first gear 71 is meshed with the second gear 72, and the second gear 72 transmits the power of the drive motor 73 to the first gear 71. The second gear 72 is connected to the drive motor 73 via a motor shaft. The drive motor 73 provides stable rotational power to ensure uniform shaking force and frequency. The drive motor 73, the second gear 72, and the first gear 71 are all mounted on the base 1.

[0023] Example 2 The positioning bolt 63 and mating rubber head 64 in the container positioning assembly 6 can be replaced with a spring clamp, which can quickly clamp conical bottles of different sizes without the need for rotation adjustment, making operation more convenient. Moreover, the elastic pressure of the spring can adapt to the container diameter, avoiding container damage caused by over-clamping.

[0024] The titrator 4, hot air blower 52, and drive motor 73 are existing technologies and will not be described in detail. In addition, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail.

[0025] Working principle and process: First, add titration reagent into the storage container 2 through the injection port 8. The positioning support frame 3 firmly supports the storage container 2 on the base 1. Then, place the conical flask on the positioning plate 61 of the container positioning assembly 6, and rotate the positioning bolt 63 in the threaded hole 62 to clamp the conical flask with the end rubber head 64 to complete the fixation. If there is residual water stains in the storage container 2 or the titrator 4 after cleaning, the hot air blower 52 of the hot air injection assembly 5 can be started. Hot air enters the storage container 2 and the inside of the titrator 4 through the hot air duct 51 for drying. When titration begins, operate the titrator 4... The drip rate is adjusted by the operating knob 42, and the titration outlet tube 44 is aligned with the mouth of the conical flask by the support arm 43. The reagent in the storage container 2 is dripped into the conical flask through the titration outlet tube 44. The display screen 41 displays the titration volume in real time. During this process, the drive motor 73 of the shaking component 7 is started, which drives the second gear 72 to rotate. The first gear 71, which meshes with the second gear 72, drives the positioning disk 61 to rotate in both directions through the rotating rod, so that the conical flask rotates at a uniform speed with the positioning disk 61 to achieve automatic shaking. After the titration is completed, the residual reagent can be discharged through the drain port 9 at the bottom of the storage container 2.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] 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. An experimental liquid titration container, comprising a base (1), characterized in that: A liquid storage container (2) is provided above the base (1), and a positioning support frame (3) is provided on the outside of the liquid storage container (2). The positioning support frame (3) is located on the base (1). A titrator (4) is connected to the top of the liquid storage container (2). A hot air injection component (5) is connected to one side of the liquid storage container (2). A container positioning component (6) is provided on the base (1). A shaking component (7) is connected to the bottom of the container positioning component (6). The shaking component (7) is located on the base (1).

2. A liquid titration vessel for laboratory use according to claim 1, characterised in that: The liquid storage container (2) has an injection port (8) on one side near the top, and a drain port (9) at the bottom.

3. A liquid titration vessel for laboratory use according to claim 1, characterised in that: The titrator (4) includes a display screen (41), an operation knob (42), and a support arm (43) on the outer casing. The support arm (43) is connected to a titration outlet tube (44).

4. A liquid titration vessel for laboratory use according to claim 1, characterized in that: The hot air injection assembly (5) includes a hot air duct (51) connected to the top of one side of the liquid storage container (2), and a hot air blower (52) is connected to one end of the hot air duct (51). The hot air blower (52) is mounted on the base (1).

5. The experimental liquid titration container according to claim 1, characterized in that: The container positioning assembly (6) includes a positioning disk (61) on the base (1). The positioning disk (61) has circumferentially distributed threaded holes (62). The threaded holes (62) are threadedly connected to positioning bolts (63). The end of the positioning bolts (63) is provided with rubber heads (64).

6. A liquid titration vessel for laboratory use according to claim 5, characterised in that: The shaking assembly (7) includes a first gear (71) fixedly connected to the bottom of the positioning disk (61) via a rotating rod. The first gear (71) is meshed with a second gear (72). The second gear (72) is connected to a drive motor (73) via a motor shaft. The drive motor (73), the second gear (72), and the first gear (71) are all located on the base (1).

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