Double-person synchronous multifunctional titration frame

Abstract

The utility model relates to a double-person synchronous multifunctional titration frame, and belongs to the field of titration analysis. Comprising an adjustable base, a vertical support column is mounted in the center of the adjustable base, a bidirectional double-chute sleeves the vertical support column, one end of each titration arm is mounted on the bidirectional double-chute, a burette clamp is mounted at the other end of each titration arm, a plurality of titration arms can be mounted in the bidirectional double-chute, and a plurality of burette clamps are mounted at the tail ends of the plurality of burette arms. An electromagnetic stirrer is mounted on the adjustable base and is used for stirring liquid in the conical flask, so that synchronous titration of multi-concentration and multi-type titration solutions can be realized, burettes can be stored, double-person face-to-face synchronous titration analysis without interference is realized, storage and titration are integrated, a plurality of burettes can be used and stored at the same time, the space is saved, and the efficiency is improved. The experiment efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of titration analysis, and in particular relates to a double-person synchronous multifunctional titration stand. Background Art

[0002] The traditional burette stand has a simple design, in which the burette is fixed to the butterfly clamp of the iron stand support rod, and can only accommodate two burettes at the same time. Before titration analysis, the burette is removed and the titrant is injected into the burette. The acid burette is turned to adjust the liquid level to zero (the alkaline burette is pinched and the glass bead of the hose is released to adjust the liquid level to zero). After zeroing, the burette is clamped to the butterfly clamp and the titration experiment is carried out. After the titration experiment is completed, the burette is removed again and the reading is taken according to the liquid level height. In the titration analysis of the same sample, different concentrations and different types of titrants are often used for segmented titration at the same time. At this time, multiple burettes are needed for collaborative titration. However, the traditional burette stand can only accommodate two burettes at the same time, and the burette can only be frequently replaced or replaced with a different burette stand for titration. Titration analysis is extremely inconvenient, which will increase the titration experiment time and reduce work efficiency. It cannot meet the requirements of high detection efficiency in the laboratory.

[0003] In order to improve titration efficiency and reduce testing costs, a large number of literature and patents were consulted. There are very few patents for titration stands. Among them, the utility model patent "Multifunctional Six-element Titration Stand" with publication number CN 209406367 U is actually a test tube stand and has nothing to do with burettes and titration analysis; the utility model patent "A Liftable Titration Stand" with publication number CN 216280393 U is actually a slide installed parallel to a vertical support column, which cooperates with a gear and chain to achieve limited adjustment of the height position of the butterfly clamp and the burette. In fact, for adjusting the height position of the burette, all burette stands have one or two adjustment methods. One is to loosen the fixing screw bolt between the butterfly clamp and the support column, move the butterfly clamp to the appropriate position, and tighten the fixing screw bolt; the other is to open the butterfly clamp with one hand, move the burette to the appropriate height position with the other hand, and close the butterfly clamp to fix the burette; publication number CN 218962696 U's utility model patent, "A Automatically Stirring Acid-Base Titration Stand," is essentially a disc-shaped test tube rack with an added rotating device that allows the rack to rotate together with the test tubes, completely unrelated to the burettes and titration analysis. U's utility model patent, "A New Multi-Position Titration Stand," with publication number CN 215843090, is a multi-position burette stand that allows the burettes in a particular branch to be selected by rotating the stand. Compared to traditional burette stands, this increases the number of burettes and the method for replacing them. Because the burette stand rotates the burettes by rotating the threads on the support column, the height position of the burettes will change within a certain range during rotation. Utility Model Content

[0004] The utility model aims to overcome the problems of increased titration experiment time and low work efficiency caused by replacing the burette during the titration process of the existing burette, and provides a double-person synchronous multifunctional titration stand.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A two-person synchronous multifunctional titration stand includes an adjustable base, a vertical support column is installed at the center of the adjustable base, an electromagnetic stirrer is installed on the adjustable base, a bidirectional double chute is sleeved on the vertical support column, one end of the titration arm is installed on the bidirectional double chute, and the other end of the titration arm is installed with a burette clamp, and the chute of the bidirectional double chute can be used to install multiple titration arms.

[0007] A level is provided on the plane of the adjustable base, and height adjustment bolts are provided at the four corners of the adjustable base.

[0008] A connecting hole is provided at the center of the adjustable base, an internal thread is provided in the connecting hole, and an external thread is provided at the lower end of the vertical support column. The vertical support column is screwed into the connecting hole and fixed with threads.

[0009] The bidirectional double chute is provided with a vertical penetrating hole, and the bidirectional double chute is sleeved on the vertical support column through the vertical penetrating hole.

[0010] The bidirectional double chute is H-shaped.

[0011] A plurality of background plate hanging holes are provided on the lower edge of the bidirectional double chute.

[0012] A rotating shaft sleeve is provided in the vertical penetration hole, a positioning bolt is provided on the inner shaft, and the outer shaft is fixed with a bidirectional double sliding groove.

[0013] The titration arm is connected by a three-fold axis, and each section of the titration arm adopts a trough structure. From the vertical support column to the outside, the size of the trough structure gradually decreases.

[0014] Each section of the titration arm can be folded when not in use to reduce the space occupied, and can be stretched to the appropriate position when in use.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The utility model provides a two-person synchronous multifunctional titration stand, comprising an adjustable base, a vertical support column installed at the center position of the adjustable base, a bidirectional double slide groove sleeved on the vertical support column, one end of a titration arm installed on the bidirectional double slide groove, and the other end installed with a burette clamp, a plurality of titration arms can be installed in the bidirectional double slide groove, a plurality of burette clamps are installed at the ends of the plurality of burette arms, an electromagnetic stirrer is installed on the adjustable base to stir the liquid in the conical flask, thereby realizing synchronous titration of multi-concentration and multi-type titrants, and can also store burettes, realizing face-to-face synchronous titration analysis by two people without interfering with each other, integrating storage and titration in one, and can use and store multiple burettes at the same time, saving space and improving experimental efficiency.

[0017] Furthermore, the base is adjustable, and a level is inlaid on the flat surface to ensure the horizontal stability of the base. The base is made of metal or quartz material, which is heavy, thereby ensuring the stability and safety of the titration operation.

[0018] Furthermore, an electromagnetic stirrer is installed at the base. During titration analysis, a stirring bar can be placed in the conical flask. Using electromagnetic stirring can replace the work of manually shaking the conical flask, thereby reducing the work intensity.

[0019] Furthermore, a vertical penetration hole is provided on the vertical support column for fixing the height position, and the outer shaft and the bidirectional double slide are fixed, so that the bidirectional double slide can rotate 360 ​​degrees as a whole.

[0020] Furthermore, each section of the titration arm adopts a slot-shaped structure, with the size gradually decreasing from near to far. A burette clamp is installed at the outer end of the third section, which can be folded when not in use and stretched when in use, ensuring that the burette clamp and the burette can be slid to the designated position by external force for titration analysis.

[0021] Furthermore, the color contrast background plate used for hanging during titration is helpful for the titrator to observe the liquid level of the burette. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a left-side schematic diagram of the double-person synchronous multifunctional titration stand provided by the utility model;

[0023] Figure 2 This is a top view of the base of the double-person synchronous multifunctional titration stand provided by the utility model;

[0024] Figure 3 This is a front view schematic diagram of the double-person synchronous multifunctional titration stand provided by the utility model;

[0025] Explanation of the reference numerals in the figure: 1. Adjustable base; 2. Level; 3. Height adjustment bolt; 4. Connecting hole; 5. Vertical support column; 6. Electromagnetic stirrer; 7. Bidirectional double slide; 8. Vertical penetrating hole; 9. Titration arm; 10. Burette clamp; 11. Background plate hanging hole. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0029] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear to indicate an orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the product of the present invention is typically placed when in use. These terms are used solely to facilitate the description of the present invention and to simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0032] The present invention will be described in detail below with reference to the accompanying drawings.

[0033] like Figure 1-3 The utility model provides a two-person synchronous multifunctional titration stand, comprising: an adjustable base 1, a connecting hole 4 is provided at the center position of the adjustable base 1 for inserting a vertical support column 5, the vertical penetration hole 8 of the two-way double slide 7 is sleeved on the appropriate position on the upper part of the vertical support column 5 to fix the height position, a titration arm 9 is installed in the slide of the two-way double slide 7, the end of the titration arm 9 is connected to the burette clamp 10 for installing the burette, a background plate hanging hole 11 is provided at the lower edge of the slide of the two-way double slide 7, a color contrast background plate is used for hanging during titration, which is beneficial for the titrator to observe the liquid level of the burette, the titration arm 9 and the burette clamp 10 are flexibly adjustable, and can realize synchronous titration of multiple concentrations and multiple types of titrants, can also store burettes, and can also realize synchronous titration analysis by two people face to face without interfering with each other, integrating storage and use, can use and store multiple burettes at the same time, saves space, and improves experimental efficiency.

[0034] Preferably, the bidirectional double chute 7 is an H-shaped structure. N titration arms 9 and burette clamps 10 can be installed in the A / B surface slides of the bidirectional double chute 7 as needed, and N burettes can be fixed at the same time. Different concentrations and different types of titrants can be loaded at the same time for titration analysis. The titrator can slide the burette of the required titrant to the appropriate position for titration analysis as needed. The tester does not need to frequently switch to different titration stands and burettes for titration analysis, thereby improving titration efficiency and reducing titration workload.

[0035] Preferably, in this embodiment, the adjustable base 1 is a planar quadrilateral made of metal, quartz or tempered glass, with a side length of 30 cm and a thickness of 2 cm. The plane is inlaid with a level 2, and four height adjustment bolts 3 are provided at the four corners of the lower part for adjusting the level and stability of the base. There is a base and vertical support column connecting hole 4 with an aperture of 1.2 cm in the middle of the plane for inserting the vertical support column 5. The base is inlaid with an electromagnetic stirrer 6. The body of the electromagnetic stirrer is under the base platform, and the stirring surface is inlaid on the edge of the base platform and is flush with the platform.

[0036] Preferably, in this embodiment, the stainless steel vertical support column 5 is 50cm-60cm long, has an external thread at the lower end, and an internal thread is provided in the connecting hole 4. The vertical support column 5 is screwed into the connecting hole 4 and fixed on the adjustable base 1.

[0037] Preferably, in this embodiment, the vertical penetration hole 8 of the bidirectional double slide 7 is placed in a suitable position on the upper part of the vertical support column 5. The vertical penetration hole 8 includes an inner shaft and an outer shaft. The inner shaft is fixed to the bidirectional double slide 7 on the vertical support column 5 with a top screw bolt to fix the height position. The outer shaft is fixed to the bidirectional double slide 7, and the bidirectional double slide 7 can realize a 360-degree rotation of the entire bidirectional double slide 7.

[0038] Preferably, in this embodiment, a titration arm 9 and a burette clamp 10 at the end are installed in the bidirectional double-slot surface slideway. The titration arm is connected by a three-fold axis. Each section of the titration arm 9 adopts a groove structure. From near to far, the size gradually decreases. The burette clamp 10 is installed at the outer end of the third section. It is folded when not in use to reduce the space occupied. It can be stretched to a suitable position when in use to ensure that the burette clamp 10 and the burette can be slid to the specified position by external force for titration analysis.

[0039] Preferably, in this embodiment, the lower edge of the bidirectional double chute 7 has a plurality of background plate hanging holes 11 for hanging a color contrast background plate during titration, which is helpful for the titrator to observe the liquid level of the burette.

[0040] The utility model provides a two-person synchronous multifunctional titration stand, which can realize synchronous titration of various concentrations and various types of titrants, can also store titration tubes, and can also realize synchronous titration analysis by two people facing each other without interfering with each other. It integrates storage and use in one, saves space, and improves experimental efficiency.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A two-person synchronous multifunctional titration stand, characterized in that: The invention comprises an adjustable base (1), a vertical support column (5) is installed at the center of the adjustable base (1), an electromagnetic stirrer (6) is installed on the adjustable base (1), a bidirectional double chute (7) is sleeved on the vertical support column (5), one end of a titration arm (9) is installed on the bidirectional double chute (7), and a burette clamp (10) is installed on the other end of the titration arm (9), and a plurality of titration arms (9) can be installed in the chute of the bidirectional double chute (7).

2. The two-person synchronous multifunctional titration stand according to claim 1, characterized in that: A level (2) is provided on the plane of the adjustable base (1), and height adjustment bolts (3) are provided at the four corners of the adjustable base (1).

3. The two-person synchronous multifunctional titration stand according to claim 1, characterized in that: The adjustable base (1) is provided with a connection hole (4) at the center thereof, wherein an internal thread is provided in the connection hole (4), and the lower end of the vertical support column (5) is provided with an external thread, and the vertical support column (5) is screwed into the connection hole (4) and fixed by screwing.

4. The two-person synchronous multifunctional titration stand according to claim 1, characterized in that: The bidirectional double chute (7) is provided with a vertical penetrating hole (8), and the bidirectional double chute (7) is sleeved on the vertical support column (5) through the vertical penetrating hole (8).

5. The two-person synchronous multifunctional titration stand according to claim 4, characterized in that: The bidirectional double chute (7) is H-shaped.

6. The two-person synchronous multifunctional titration stand according to claim 4, characterized in that: A plurality of background plate hanging holes (11) are provided on the lower edge of the bidirectional double chute (7).

7. The two-person synchronous multifunctional titration stand according to claim 4, characterized in that: A rotating shaft sleeve is provided in the vertical penetration hole (8), a positioning bolt is provided on the inner shaft, and the outer shaft is fixed to the bidirectional double slide groove (7).

8. The two-person synchronous multifunctional titration stand according to claim 1, characterized in that: The titration arm (9) is connected by a three-fold axis, and each section of the titration arm (9) adopts a trough structure. From the vertical support column (5) outward, the size of the trough structure gradually decreases.

9. The two-person synchronous multifunctional titration stand according to claim 8, characterized in that: Each section of the titration arm (9) is foldable when not in use and can be stretched when in use.

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