Support bottom sleeve for conical flask titration experiment
By designing a backing sleeve for Erlenmeyer flasks, the problems of inaccurate results and temperature changes in titration experiments are solved, achieving higher experimental accuracy and stability.
Patent Information
- Application Number
- CN202421401663.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-06-19
AI Technical Summary
In the titration experiment, the color of the conical flask base is likely to affect the accuracy of the titration results, and the specific heat capacity of the iron base is small, resulting in a change in the solution temperature and affecting the detection results.
A backing base sleeve for Erlenmeyer flasks is designed, which adopts a magnetic base and an iron stand base for adsorption. The white lightweight cylinder provides stable support, white foil and thermal insulation effect for the Erlenmeyer flask.
Through the stable support and white background, the accuracy of the titration experiment is improved, and the thermal insulation effect reduces the impact of temperature changes, improving the accuracy of the detection results.
Smart Images
Figure CN222358519U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical experimental equipment, in particular to a supporting bottom sleeve used for a conical flask titration experiment. Background Art
[0002] In chemical laboratories, the titration method is often used to test solutions. The content of a certain solute is determined by the quantitative reaction of two solutions. The titration endpoint is indicated by the color change of the indicator, and the volume consumed by the standard solution is visually observed to calculate the analysis result.
[0003] In the actual operation of the titration experiment, it is generally carried out on an iron stand, that is, the container containing the test solution is placed on the base of the iron stand, and the test solution is fixed on the vertical rod to facilitate the quantitative dropwise operation. Among them, when the titration method is used for the test items such as dissolved oxygen, five-day biochemical oxygen demand, permanganate index, chemical oxygen demand, chloride, etc. in the "Surface Water Environmental Quality Standard" (GB3838-2022), conical flasks are used to hold the test solution.
[0004] When the titration method is used to monitor water quality, the color change of the equivalence point is not obvious and it is easily affected by the color of the iron stand base, resulting in readings before the titration reaches or exceeds the equivalence point, and the test results are not accurate enough. In addition, the specific heat capacity of the iron base is small, and the temperature changes greatly due to the influence of the environment, which will cause a significant change in the temperature of the solution to be tested, thus affecting the accuracy of the test results. Utility Model Content
[0005] The utility model aims to provide a supporting bottom sleeve for a conical flask titration experiment, which is used to solve the problem of inaccurate results in the titration experiment in the prior art.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a supporting bottom sleeve for a conical flask titration experiment, the bottom of the magnetic base is provided with a magnet adsorbed to the top surface of the iron frame base, the connecting cylinder is detachably connected to the top surface of the magnetic base, the white lightweight column is fixedly sleeved in the inner cavity of the connecting cylinder, and the middle part of the top surface of the white lightweight column is provided with a placement groove that matches the sleeve of the bottom of the conical flask.
[0007] Preferably, the white lightweight column is made of white polyurethane foam.
[0008] Preferably, the magnetic base further includes a chassis, and the magnet is embedded in a rectangular hole opened on the chassis.
[0009] Preferably, a clamping head is provided on the outer edge of the top surface of the chassis, and a clamping groove rotatably engaged with the clamping head is provided at the bottom end of the connecting cylinder.
[0010] Preferably, the chassis and the connecting cylinder are both made of plastic.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model relates to a supporting bottom sleeve for a conical flask titration experiment, which can stably support the conical flask containing a solution to be tested, provides a white supporting effect for the conical flask, and can provide a certain heat preservation effect for the bottom of the conical flask, thereby facilitating the improvement of the accuracy of the titration experiment structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the magnetic base of the utility model;
[0015] Figure 3 It is a three-dimensional structural schematic diagram of the connecting cylinder of the utility model.
[0016] In the figure: 1-magnetic base; 1.1-chassis; 1.2-magnet; 1.3-clip head;
[0017] 2-connecting cylinder; 2.1-card slot;
[0018] 3- White light cylinder; 3.1- Placement slot. DETAILED DESCRIPTION
[0019] 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.
[0020] See also Figure 1-3 The utility model provides a technical solution: a base sleeve for a conical flask titration experiment, wherein a magnetic base 1 comprises a base plate 1.1 and a magnet 1.2 embedded in a rectangular hole on the base plate 1.1, wherein the magnet 1.2 is a strong magnet block, so that the magnetic base 1 can be firmly adsorbed to the top surface of the iron frame base.
[0021] A clamping head 1.3 is provided on the outer edge of the top surface of the chassis 1.1, and a clamping slot 2 rotatably clamped with the clamping head 1.3 is provided at the bottom end of the connecting cylinder 2, that is, the clamping head 1.3 is firstly clamped with the clamping slot 2 along the vertical direction, and then the connecting cylinder 2 is rotated, so that the horizontal extension part of the clamping slot 2 can be clamped with the horizontal extension part of the clamping head 1.3, so as to realize the detachable connection between the connecting cylinder 2 and the magnetic base 1.
[0022] The white light column 3 is fixedly sleeved in the inner cavity of the connecting cylinder 2, and a placement groove 3.1 matching the bottom sleeve of the conical flask is provided in the middle of the top surface of the white light column 3. Among them, the white light column 3 is made of white polyurethane foam, so that the white light column 3 can not only provide a white foil for the conical flask, but also provide a certain heat preservation effect for the bottom of the conical flask. The chassis 1.1 and the connecting cylinder 2 are both made of plastic. That is, the connecting cylinder 2 and the white light column 3 are light in overall weight. After the bottom of the conical flask is inserted into the placement groove 3.1, since the white light column 3 is elastic and the inner diameter of the placement groove 3.1 is slightly smaller than the outer diameter of the bottom end of the conical flask, the white light column 3 and the connecting cylinder 2 can be rotated and lifted as a whole through the conical flask, so as to facilitate the operation of shaking the conical flask, and the conical flask still has the white light column 3 to provide a white foil during the shaking process, so as to accurately find the color change of the solution during shaking.
[0023] 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.
[0024] 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 base sleeve for conical flask titration experiment, characterized in that: include: A magnetic base (1), wherein a magnet (1.2) is provided at the bottom of the magnetic base (1) and is attracted to the top surface of the iron frame base; A connecting cylinder (2), wherein the connecting cylinder (2) is detachably connected to the top surface of the magnetic base (1); A white light column (3) is fixedly sleeved in the inner cavity of the connecting cylinder (2), and a placement groove (3.1) is provided in the middle of the top surface of the white light column (3) to match the bottom sleeve of the conical bottle.
2. The supporting bottom sleeve for conical flask titration experiment according to claim 1 is characterized in that: The white lightweight column (3) is made of white polyurethane foam.
3. The supporting bottom sleeve for conical flask titration experiment according to claim 1 is characterized in that: The magnetic base (1) also comprises a chassis (1.1), and the magnet (1.2) is embedded in a rectangular hole opened on the chassis (1.1).
4. The supporting bottom sleeve for conical flask titration experiment according to claim 3 is characterized in that: The outer edge of the top surface of the chassis (1.1) is provided with a clamping head (1.3), and the bottom end of the connecting cylinder (2) is provided with a clamping groove (2.1) rotatably clamped with the clamping head (1.3).
5. The supporting bottom sleeve for conical flask titration experiment according to claim 3 is characterized in that: The chassis (1.1) and the connecting cylinder (2) are both made of plastic.