Elliptical conical flask titration clamp

Abstract

An oval conical flask titration clamp comprises a first clamp body, a second clamp body and an elastic connecting piece, and the first clamp body and the second clamp body are connected to the two ends of the elastic connecting piece respectively. The first clamp body, the second clamp body and the elastic connecting piece are arc-shaped, and the inner arc surface of the first clamp body is opposite to the inner arc surface of the second clamp body. The first clamp body and the second clamp body are made of wood, bamboo or plastic, the inner cambered surface and the outer cambered surface are rough surfaces, and the elastic connecting piece is made of metal. According to the titration clamp disclosed by the utility model, the first clamp body, the elastic connecting piece and the second clamp body form an approximately elliptical shape which is matched with the shape formed by the thumb, the jaw and the index finger of a human hand, so that the human hand can firmly and stably grasp the titration clamp and clamp a conical flask. And the first clamp body and the second clamp body are made of wood, bamboo or plastic, so that a heat insulation effect can be achieved, an experimenter is prevented from being scalded, and the titration clamp is suitable for titration analysis operation after heating.

Description

Technical Field

[0001] The utility model belongs to the technical field of experimental instruments, and particularly relates to a titration clamp for an oval conical flask. Background Art

[0002] A conical flask is a common glass instrument in a chemical laboratory and is often used in titration analysis experiments. Titration analysis is a common quantitative analysis method.

[0003] During the titration process, it is required to hold the neck of the conical flask with the right hand and shake the conical flask using wrist force, adding the titrant while shaking to make the reactants mix evenly. For some titration reactions, the reaction rate is slow and appropriate heating is required to accelerate the reaction. After the reactants in the conical flask are heated, the temperature of the bottle mouth and the neck is relatively high. Therefore, some experimenters wrap the neck of the conical flask with paper or a cloth for titration operations, but this method is prone to slipping and the conical flask is not held firmly. Some other experimenters use a clamp to hold the neck of the conical flask for titration operations. Generally, the clamp can hold the neck firmly, but it is not suitable for the operation of shaking the conical flask. Content of the Utility Model

[0004] Aiming at the above problems, the utility model provides a titration clamp for an oval conical flask. Using the titration clamp for titration operations after heating can isolate the heat of the conical flask, not be hot to the touch, and can firmly hold the conical flask, facilitating the shaking operation.

[0005] To achieve the above object, the technical solution adopted by the utility model is:

[0006] A titration clamp for an oval conical flask includes a first clamp body, a second clamp body and an elastic connecting piece. The first clamp body and the second clamp body have the same shape and size, and the first clamp body and the second clamp body are respectively connected to both ends of the elastic connecting piece. The first clamp body, the second clamp body and the elastic connecting piece are all arc-shaped, and the inner arc surfaces of the first clamp body and the second clamp body are arranged opposite to each other. The utility model makes a titration clamp for a conical flask by using the elasticity of the elastic connecting piece, and clamps the neck of the conical flask with the first clamp body and the second clamp body. The proposed titration clamp for a conical flask is composed of only three parts, with a simple structure, being durable and not easily damaged, and being easy to manufacture.

[0007] In the utility model, the first clamp body and the second clamp body are made of wood, bamboo or plastic, and both the inner arc surface and the outer arc surface are rough matte surfaces. The wood, bamboo or plastic materials have heat insulation and heat preservation functions. There is a heat insulation material between the experimenter's hand and the conical flask, and the hand will not be scalded during the process of clamping and shaking the conical flask. The rough matte surface can increase the friction, and it is not easy to slip at the interface. It will be more firm for a person to hold the clamp and for the clamp to hold the conical flask.

[0008] In the utility model, the inner arc height of the first clamp and the second clamp is 0.5-2.0cm, the outer arc height is 1.0-2.5cm, the chord length is 3.0-5.0cm, and the width is 2.0-3.0cm. The arc height of the elastic connecting piece is 0.5-1.5cm, the chord length is 2.0-3.0cm, and the width is 2.0-3.0cm. The first clamp, the elastic connecting piece, and the second clamp are all arc-shaped, and the three are connected in sequence to form an approximately elliptical shape, whose shape and size are adapted to the shape and size formed by the thumb, the base of the thumb, and the index finger of the human hand. When the human hand grasps the titration clamp, the inner side of the finger can be evenly applied, so that the human hand can hold the titration clamp firmly, and the conical flask will not feel too tired even if the conical flask is shaken for a long time. The inner arc surface of the first clamp and the second clamp is adapted to the bottleneck size of most conical flasks, which can ensure that the clamp and the bottleneck of the conical flask fit well, increase the stability of the clamp, and facilitate the operation of shaking the conical flask.

[0009] The oval conical flask titration clamp proposed by the utility model is small in size and can be held in the palm of the hand. The heat is isolated by heat insulation materials, instead of using the long handle of the general clamp to increase the distance between the experimenter's hand and the high-temperature object to avoid scalding. The long-handled clamp can firmly clamp the object and is not suitable for shaking the conical flask. The utility model is a conical flask titration clamp suitable for the heating titration process.

[0010] The beneficial effects of adopting the above technical solution are:

[0011] 1. The overall shape of the conical flask titrant clamp is approximately elliptical, which is adapted to the shape formed by the thumb, base of the thumb and index finger of a human hand. The titration clamp is small in size and can be easily placed between the thumb and index finger, which is conducive to the human hand to firmly and steadily grasp the conical flask, and is conducive to the operation of shaking the conical flask during the heating titration analysis.

[0012] 2. The inner arc structure of the first clamp and the second clamp can make the clamp fit well with the bottleneck of a common conical bottle, thereby increasing the stability of clamping.

[0013] 3. The inner and outer arc surfaces of the clamp body are made of wood, bamboo or plastic. Wood, bamboo or plastic materials have heat insulation and can isolate the heat of the conical flask to prevent burns to the hands of the experimenter. The rough surface increases friction and is not easy to slip, making it more secure for the human hand to hold the clamp and the clamp to hold the conical flask.

[0014] 4. The conical flask titration clamp consists of only three parts, with a simple structure, easy production and manufacturing, and is durable and not easy to damage.

[0015] 5. The materials are wood, bamboo, plastic and elastic metal, the materials are cheap and the manufacturing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structural schematic diagram of a titration clamp for an oval conical flask of the present utility model.

[0017] Figure 2 This is the structural schematic diagram of the first clamping body or the second clamping body of the present utility model.

[0018] Figure 3 This is the dimensional schematic diagram of the first clamping body or the second clamping body of the present utility model.

[0019] Figure 4 This is the structural schematic diagram of the elastic connecting piece of the present utility model.

[0020] Figure 5 This is the dimensional schematic diagram of the elastic connecting piece of the present utility model.

[0021] In the figure, 1 is the first clamping body, 2 is the second clamping body, 3 is the elastic connecting piece, 4 is the inner arc height of the clamping body, 5 is the outer arc height of the clamping body, 6 is the chord length of the clamping body, 7 is the width of the clamping body, 8 is the arc height of the elastic connecting piece, 9 is the chord length of the elastic connecting piece, and 10 is the width of the elastic connecting piece. Specific embodiments

[0022] Next, with reference to the accompanying drawings, the technical solutions proposed by the present utility model will be clearly and completely described through embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0023] Embodiment 1

[0024] An oval conical flask titration clamp includes a first clamping body 1, a second clamping body 2, and an elastic connecting piece 3. The shapes and sizes of the first clamping body 1 and the second clamping body 2 are the same. The first clamping body 1 and the second clamping body 2 are respectively connected to both ends of the elastic connecting piece 3. The first clamping body 1, the second clamping body 2, and the elastic connecting piece 3 are all arc-shaped, and the inner arc surfaces of the first clamping body 1 and the second clamping body 2 are arranged opposite to each other.

[0025] Furthermore, the first clamping body 1 and the second clamping body 2 are made of wood, and the elastic connecting piece 3 is made of metal.

[0026] Furthermore, the inner arc surfaces and the outer arc surfaces of the first clamping body 1 and the second clamping body 2 are both rough matte surfaces.

[0027] Furthermore, the inner arc height 4 of the first clamping body 1 and the second clamping body 2 is 0.5 cm, the outer arc height 5 is 1.0 cm, the chord length 6 of the clamping body is 3.0 cm, and the width 7 of the clamping body is 2.0 cm.

[0028] Furthermore, the arc height 8 of the elastic connecting piece is 0.5 cm, the chord length 9 of the elastic connecting piece is 2.0 cm, and the width 10 of the elastic connecting piece is 2.0 cm.

[0029] During the titration process, hold the oval conical flask titration clamp gently between the thumb, base of the thumb and index finger in the right hand, apply force inwards to clamp the neck of the heated conical flask, leave the heating plate, and perform the titration operation.

[0030] Example 2

[0031] An elliptical conical flask titration clamp comprises a first clamp body 1, a second clamp body 2 and an elastic connecting piece 3. The first clamp body 1 and the second clamp body 2 are consistent in shape and size. The first clamp body 1 and the second clamp body 2 are respectively connected to two ends of the elastic connecting piece 3. The first clamp body 1, the second clamp body 2 and the elastic connecting piece 3 are all arc-shaped. The inner arc surface of the first clamp body 1 is arranged opposite to the inner arc surface of the second clamp body 2.

[0032] Furthermore, the first clamp body 1 and the second clamp body 2 are made of bamboo material, and the elastic connecting piece 3 is made of metal material.

[0033] Furthermore, the inner and outer arc surfaces of the first clamping body 1 and the second clamping body 2 are both rough surfaces.

[0034] Furthermore, the inner arc height 4 of the first clamp 1 and the second clamp 2 is 2.0 cm, the outer arc height 5 of the clamp is 2.5 cm, the chord length 6 of the clamp is 5.0 cm, and the width 7 of the clamp is 3.0 cm.

[0035] Furthermore, the arc height 8 of the elastic connecting piece is 1.5 cm, the chord length 9 of the elastic connecting piece is 3.0 cm, and the width 10 of the elastic connecting piece is 3.0 cm.

[0036] During the titration process, hold the oval conical flask titration clamp gently between the thumb, base of the thumb and index finger in the right hand, apply force inward with the fingers, clamp the neck of the heated conical flask, leave the electric furnace, and perform the titration operation.

[0037] Example 3

[0038] An elliptical conical flask titration clamp comprises a first clamp body 1, a second clamp body 2 and an elastic connecting piece 3. The first clamp body 1 and the second clamp body 2 are consistent in shape and size. The first clamp body 1 and the second clamp body 2 are respectively connected to two ends of the elastic connecting piece 3. The first clamp body 1, the second clamp body 2 and the elastic connecting piece 3 are all arc-shaped. The inner arc surface of the first clamp body 1 is arranged opposite to the inner arc surface of the second clamp body 2.

[0039] Furthermore, the first clamp body 1 and the second clamp body 2 are made of plastic material, and the elastic connecting piece 3 is made of metal material.

[0040] Further, the inner arc surfaces and outer arc surfaces of the first clamping body 1 and the second clamping body 2 are both rough matte surfaces.

[0041] Further, the inner arc height 4 of the clamping bodies of the first clamping body 1 and the second clamping body 2 is 1.0 cm, the outer arc height 5 of the clamping bodies is 2.0 cm, the chord length 6 of the clamping bodies is 4.0 cm, and the width 7 of the clamping bodies is 2.5 cm.

[0042] Further, the arc height 8 of the elastic connecting piece is 1.0 cm, the chord length 9 of the elastic connecting piece is 2.5 cm, and the width 10 of the elastic connecting piece is 2.5 cm.

[0043] During the titration process, the left hand (this utility model is equally applicable to left - hand operation and can be used by experimenters with the left hand as the dominant hand) gently holds the elliptical conical flask titration clamp between the thumb, the thenar eminence and the index finger, and the fingers exert inward force to clamp the neck of the heated conical flask, then leave the heating plate to perform the titration operation.

Claims

1. An elliptical conical flask burette clamp, comprising a first clamp body (1), a second clamp body (2) and an elastic connecting piece (3), wherein the first clamp body (1) and the second clamp body (2) have the same shape and size, and the first clamp body (1) and the second clamp body (2) are respectively connected to both ends of the elastic connecting piece, and the characteristics are as follows: The first clamping body (1), the second clamping body (2) and the elastic connecting piece (3) are all arc-shaped, and the inner arc surfaces of the first clamping body (1) and the second clamping body (2) are arranged opposite to each other.

2. The titration clamp for an elliptical conical flask according to claim 1, characterized in that: The materials of the first clamping body (1) and the second clamping body (2) include wood and plastic, and the material of the elastic connecting piece (3) is metal.

3. An elliptical conical flask burette clamp according to claim 1 or 2, characterized in that: The inner arc surfaces and the outer arc surfaces of the first clamping body (1) and the second clamping body (2) are rough matte surfaces.

4. An elliptical conical flask burette clamp according to claim 1 or 2, characterized in that: The inner arc height (4) of the clamping bodies of the first clamping body (1) and the second clamping body (2) is 0.5 - 2 cm, the outer arc height (5) of the clamping bodies is 1.0 - 2.5 cm, the chord length (6) of the clamping bodies is 3.0 - 5.0 cm, and the width (7) of the clamping bodies is 2.0 - 3.0 cm.

5. An elliptical conical flask burette clamp according to claim 1 or 2, characterized in that: The arc height (8) of the elastic connecting piece is 0.5 - 1.5 cm, the chord length (9) of the elastic connecting piece is 2.0 - 3.0 cm, and the width (10) of the elastic connecting piece is 2.0 - 3.0 cm.

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