Chemical analysis titration experiment device

Abstract

The utility model discloses a chemical analysis titration experiment device which comprises a titration assembly, the titration assembly comprises a burette, a titration head communicated with the bottom surface of the burette, and a rotary piston arranged at the position of the titration head; the auxiliary liquid inlet assembly comprises a liquid inlet pipe arranged above the burette, a liquid inlet transverse frame communicated with the liquid inlet pipe, a conical buffer sleeve communicated with the liquid inlet pipe, an inclined guide plate fixed on the inner side of the liquid inlet transverse frame, and an annular baffle fixed on the outer side wall of the liquid inlet pipe. The titration assembly and the auxiliary liquid inlet assembly are matched with each other, so that in the use process, chemical agents are assisted to enter, agent leakage is avoided, overflow buffering is directly carried out, the overflowed agents are stored, agent leakage is avoided, and the use safety is improved. The hands of an operator are protected while medicament waste is avoided, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical analysis titration, and specifically relates to a chemical analysis titration experiment device. Background Art

[0002] During the chemical analysis titration process, a burette is needed to titrate chemical agents into a beaker and strictly control the dropping amount of the liquid medicine. During the use of the burette, the user takes the chemical agent and directly pours it into the burette, and then controls the titration head through a rotating piston for precise titration. In the prior art, when the experimenter holds the liquid medicine cup and pours it into the burette, once the hand is unsteady, it is very easy to cause the leakage of the chemical agent. In this way, when the user holds the burette, there is a great potential safety hazard, and it is also easy to cause waste of the agent. Content of the Utility Model

[0003] Therefore, the purpose of the utility model is to provide a chemical analysis titration experiment device. Through the mutual cooperation of the set titration component and the auxiliary liquid inlet component, when in use, it can assist the chemical agent to enter, avoid the leakage of the agent, and when the agent is added too much and overflows due to carelessness, it can directly carry out overflow buffering, collect the overflowed agent, avoid the leakage of the agent, avoid the waste of the agent, and at the same time protect the operator's hand and reduce the potential safety hazard.

[0004] To solve the above technical problems, according to one aspect of the utility model, the following technical solutions are provided: A chemical analysis titration experiment device, comprising:

[0005] A titration component, the titration component includes a set burette, a titration head communicated with the bottom surface of the burette, and a rotating piston arranged at the position of the titration head;

[0006] An auxiliary liquid inlet component, the auxiliary liquid inlet component includes a liquid inlet pipe arranged above the burette, a liquid inlet cross frame communicated with the liquid inlet pipe, a conical buffer sleeve communicated with the liquid inlet pipe, an inclined guide plate fixed inside the liquid inlet cross frame, and an annular baffle fixed on the outer wall of the liquid inlet pipe.

[0007] As a preferred scheme of a chemical analysis titration experiment device described in the utility model, wherein, the liquid inlet pipe and the top end of the burette are sleeved with each other, and the annular baffle is attached to the top end of the burette.

[0008] As a preferred scheme of a chemical analysis titration experiment device described in the utility model, wherein, two inclined guide plates are provided, and the two inclined guide plates are symmetrically arranged at the midline position of the liquid inlet cross frame.

[0009] As a preferred embodiment of a chemical analysis titration experiment device according to the present utility model, further comprising a limiting component, the limiting component including a chute opening formed on the surface of the annular baffle and a slider snapped into the chute opening;

[0010] Wherein, the slider moves horizontally along the chute opening.

[0011] As a preferred embodiment of a chemical analysis titration experiment device according to the present utility model, wherein the limiting component further includes a vertical strip plate connected to the bottom surface of the slider, a suction cup connected to the surface of the vertical strip plate, and a spring disposed in the chute opening.

[0012] As a preferred embodiment of a chemical analysis titration experiment device according to the present utility model, wherein three limiting components are provided, and the three limiting components are annularly distributed;

[0013] Wherein, a plurality of suction cups are provided on the surface of each vertical strip plate.

[0014] Compared with the prior art, the advantages of the present utility model are as follows:

[0015] First, through the mutual cooperation of the titration component and the auxiliary liquid inlet component provided in the present utility model, when in use, it helps the chemical reagent to enter, avoids reagent leakage, and when too much reagent is added and overflows due to carelessness, it directly conducts overflow buffering, collects the overflowed reagent, avoids reagent leakage, avoids reagent waste, and protects the operator's hand at the same time, reducing potential safety hazards.

[0016] Second, based on the first beneficial effect, through the provided limiting component, the liquid inlet pipe is limited, preventing the accidental detachment of the liquid inlet pipe from the burette, and ensuring the stable use of the auxiliary liquid inlet component.

[0017] During specific use, the user sleeved the liquid inlet pipe into the burette and made the annular baffle fit on the top surface of the burette. At this time, the experimenter poured the liquid medicine into the liquid inlet cross frame through the liquid medicine cup. The liquid medicine was guided to the liquid inlet pipe through the inclined guide plate and finally flowed into the burette, thus expanding the liquid inlet of the burette and avoiding liquid medicine leakage. During the process of pouring the liquid medicine through the liquid medicine cup, if the liquid medicine overflows due to a little carelessness, the liquid medicine will directly enter the liquid inlet pipe, and the overflowed liquid medicine will directly enter the expanded conical buffer sleeve, thereby increasing the capacity of the liquid inlet pipe, avoiding the liquid medicine from overflowing through the liquid inlet cross frame, preventing reagent waste, protecting the operator's hand at the same time, and reducing potential safety hazards. Description of the Drawings

[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the present utility model will be described in detail below in conjunction with the drawings and specific embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0019] Figure 1 is the structural diagram of the present utility model;

[0020] Figure 2 is the structural diagram of the auxiliary liquid inlet assembly of the present utility model;

[0021] Figure 3 is the structural diagram of the first perspective of the limit assembly of the present utility model;

[0022] Figure 4 is the structural diagram of the second perspective of the limit assembly of the present utility model.

[0023] In the figure: 11, burette; 12, burette tip; 13, rotary piston; 21, liquid inlet pipe; 22, liquid inlet cross frame; 23, conical buffer sleeve; 24, inclined guide plate; 25, annular baffle; 31, chute opening; 32, slider; 33, vertical strip plate; 34, suction cup; 35, spring. Specific Embodiments

[0024] To make the above objects, features and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below in conjunction with the drawings.

[0025] Many specific details are set forth in the following description in order to provide a thorough understanding of the present utility model, but the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0026] Secondly, the present utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present utility model, for the sake of clarity, the cross-sectional views showing the device structure will be enlarged locally out of proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0027] To make the purpose, technical solutions and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below in conjunction with the drawings.

[0028] The utility model provides a chemical analysis titration experiment device. Through the mutual cooperation of the set titration component and the auxiliary liquid inlet component, when in use, it can assist the chemical reagent to enter, avoid reagent leakage, and when too much reagent is added and overflows due to carelessness, it can directly carry out overflow buffering, collect the overflowed reagent, avoid reagent leakage, avoid reagent waste, protect the operator's hands at the same time, and reduce potential safety hazards.

[0029] Embodiment 1

[0030] Figures 1 - 4 Shown is a schematic diagram of the overall structure of an embodiment of a chemical analysis titration experiment device of the present utility model. Please refer to Figures 1 - 4 , the main structures of this embodiment include: a titration component and an auxiliary liquid inlet component.

[0031] The titration component is used for liquid medicine titration. Specifically, the titration component includes a set burette 11, a titration head 12 connected to the bottom surface of the burette 11, and a rotary piston 13 arranged at the position of the titration head 12;

[0032] During specific use, the liquid medicine is poured into the burette 11, titrated through the titration head 12, and the dropping speed is controlled by the rotary piston 13.

[0033] The auxiliary liquid inlet component is used for assisting liquid inlet and avoiding liquid medicine leakage. Specifically, the auxiliary liquid inlet component includes a liquid inlet pipe 21 arranged above the burette 11, a liquid inlet cross frame 22 communicated with the liquid inlet pipe 21, a conical buffer sleeve 23 communicated with the liquid inlet pipe 21, an inclined guide plate 24 fixed inside the liquid inlet cross frame 22, and an annular baffle 25 fixed on the outer side wall of the liquid inlet pipe 21;

[0034] During specific use, the user sleeved the liquid inlet pipe 21 into the burette 11 and made the annular baffle 25 fit on the top surface of the burette 11. At this time, the experimenter poured the liquid medicine into the liquid inlet cross frame 22 through the liquid medicine cup. The liquid medicine was guided into the liquid inlet pipe 21 through the inclined guide plate 24 and finally flowed into the burette 11. In this way, the liquid inlet of the burette 11 was amplified to avoid liquid medicine leakage. During the process of pouring the liquid medicine through the liquid medicine cup, if the liquid medicine overflows due to a little carelessness, the liquid medicine will directly enter the liquid inlet pipe 21, and the overflowed liquid medicine will directly enter the amplified conical buffer sleeve 23. In this way, the capacity of the liquid inlet pipe 21 is increased, the liquid medicine is prevented from overflowing through the liquid inlet cross frame 22, the waste of the reagent is prevented, the operator's hands are protected, and the potential safety hazards are reduced.

[0035] Embodiment 2

[0036] Please refer to Figures 1 - 4 , through the set limit component, the liquid inlet pipe 21 is limited to prevent the accidental separation of the liquid inlet pipe 21 from the burette 11, and ensure the stable use of the auxiliary liquid inlet component;

[0037] Specifically, it further includes a limiting component. The limiting component includes a chute opening 31 formed on the surface of the annular baffle 25 and a slider 32 snapped into the chute opening 31.

[0038] Among them, the slider 32 moves horizontally along the chute opening 31.

[0039] The limiting component further includes a vertical strip plate 33 connected to the bottom surface of the slider 32, a suction cup 34 connected to the surface of the vertical strip plate 33, and a spring 35 arranged in the chute opening 31.

[0040] During specific use, when the liquid inlet pipe 21 is sleeved into the burette 11, the vertical strip plate 33 is located outside the burette 11. At this time, the spring 35 pushes the vertical strip plate 33 forward, and the vertical strip plate 33 drives the suction cup 34 to adsorb on the outer wall of the burette 11, so that the liquid inlet pipe 21 can be positioned to prevent accidental detachment.

[0041] Although the present invention has been described above with reference to the embodiments, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the disclosed embodiments of the present invention can be combined with each other in any way. The exhaustive description of these combinations is not given in this specification only for the sake of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A chemical analysis titration experimental device, characterized in that: include: A titration assembly, the titration assembly comprising a burette (11), a titration head (12) connected to the bottom surface of the burette (11), and a rotary piston (13) arranged at the position of the titration head (12); An auxiliary liquid inlet assembly, the auxiliary liquid inlet assembly comprising a liquid inlet pipe (21) arranged above the burette (11), a liquid inlet transverse frame (22) connected to the liquid inlet pipe (21), a conical buffer sleeve (23) connected to the liquid inlet pipe (21), an oblique guide plate (24) fixed on the inner side of the liquid inlet transverse frame (22), and an annular baffle (25) fixed on the outer side wall of the liquid inlet pipe (21).

2. A chemical analysis titration experimental device according to claim 1, characterized in that: The liquid inlet tube (21) and the top end of the burette (11) are fitted together, and the annular baffle (25) is fitted on the top end of the burette (11).

3. A chemical analysis titration experimental device according to claim 2, characterized in that: Two oblique flow guide plates (24) are provided, and the two oblique flow guide plates (24) are symmetrically arranged at the midline position of the liquid inlet horizontal frame (22).

4. A chemical analysis titration experimental device according to claim 3, characterized in that: It also includes a position limiting component, the position limiting component including a slide groove opening (31) provided on the surface of the annular baffle (25) and a sliding block (32) inserted into the slide groove opening (31); Wherein, the sliding block (32) moves horizontally along the sliding groove opening (31).

5. A chemical analysis titration experimental device according to claim 4, characterized in that: The position limiting assembly further comprises a vertical strip plate (33) connected to the bottom surface of the sliding block (32), a suction cup (34) connected to the surface of the vertical strip plate (33), and a spring (35) arranged in the sliding groove opening (31).

6. A chemical analysis titration experimental device according to claim 5, characterized in that: There are three limit assemblies, and the three limit assemblies are distributed in a ring; Wherein, a plurality of suction cups (34) are arranged on the surface of each vertical strip plate (33).

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