CN215832795U - Constant temperature graduated flask - Google Patents
Constant temperature graduated flask Download PDFInfo
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- CN215832795U CN215832795U CN202121597390.7U CN202121597390U CN215832795U CN 215832795 U CN215832795 U CN 215832795U CN 202121597390 U CN202121597390 U CN 202121597390U CN 215832795 U CN215832795 U CN 215832795U
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Abstract
The utility model provides a constant-temperature measuring cylinder, which comprises: the measuring cylinder layer is in a hollow cylindrical shape; the protective layer is arranged on the outer wall of the measuring cylinder layer and fixed on the base; the heating layer is disposed between the graduated cylinder layer and the protective layer, wherein the heating layer is capable of transferring heat to the graduated cylinder layer to maintain a constant temperature. Through designing the graduated flask into bilayer structure, not only can the accurate measurement target solution volume, the graduated flask layer of the protection inlayer that can be fine of outer protective layer simultaneously exempts from to receive direct striking, and the zone of heating has solved winter temperature again and has crossed the low problem that the error is too big when leading to the graduated flask to measure the solution of higher crystallization point, has improved the adaptability and the accuracy of graduated flask.
Description
Technical Field
The utility model relates to the technical field of measuring cylinders, in particular to a constant-temperature measuring cylinder.
Background
At present, most of measuring cylinders on the market are made of glass materials, when a solution with a high crystallization point is measured at a low temperature, the solution can be crystallized at the low temperature, and after the solution is crystallized, the density of the solution can be changed due to the change of the properties, so that certain errors are generated in the measured volume.
For example: the detection environment temperature in winter of the laboratory is about 0 ℃, the crystallization point of benzene is 5 ℃, and when the environment temperature is lower than 5 ℃, the benzene solution can be crystallized to become solid, the volume can expand to a certain extent, and errors are generated on the measurement result;
the glass material cylinder has a fragile nature, and the glass cylinder may be broken by toppling, bumping, etc.
In view of the above-mentioned shortcomings, it is necessary to develop a constant temperature measuring cylinder.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides a constant-temperature measuring cylinder to solve the technical problem that the error of a glass measuring cylinder in measuring a solution chamber with a higher crystallization point in a low-temperature environment is larger.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a constant temperature measuring cylinder comprising:
the measuring cylinder layer is in a hollow cylindrical shape;
the protective layer is arranged on the outer wall of the measuring cylinder layer and fixed on the base;
the heating layer is arranged between the measuring cylinder layer and the protective layer, wherein
The heating layer is capable of transferring heat to the graduated cylinder layer to maintain a constant temperature.
Preferably, the heating layer comprises a heating resistance wire, one side of the heating resistance wire is annularly fixed on the inner wall of the protective layer, and the other side of the heating resistance wire is attached to the outer wall of the measuring cylinder layer.
Preferably, the base is hollow, a battery pack is detachably arranged in the base, and the heating resistance wire is electrically connected with the battery pack.
Preferably, an adjusting switch is arranged on the side wall of the base, and the adjusting switch is electrically connected with the battery pack;
the adjusting switch is provided with a plurality of adjusting gears, and the adjusting switch can adjust the power of the heating resistance wire.
Preferably, the heating layer further comprises a buffer solution, the buffer solution is filled between the measuring cylinder layer and the protective layer, and the buffer solution wraps the outer wall of the heating resistance wire.
Preferably, a sealing ring is arranged at the top end of the heating layer, and two sides of the sealing ring are respectively fixed on the outer wall of the measuring cylinder layer and the inner wall of the protective layer.
Preferably, a supporting block is arranged at the bottom end of the heating layer, and the supporting block is in a disc shape;
the supporting block is fixed on the outer bottom wall of the measuring cylinder layer, and the side wall of the supporting block is vertically fixed on the inner wall of the protective layer.
Preferably, a positioning groove is formed in the side wall of the supporting block, a positioning block matched with the positioning groove is arranged on the inner wall of the protective layer, and the positioning block is arranged on the inner wall of the protective layer
The positioning block is inserted into the positioning groove and can support the measuring cylinder layer.
Preferably, the measuring cylinder layer is made of glass, and a plurality of weighing scales are arranged on the outer wall of the measuring cylinder layer.
Preferably, the protective layer is made of a transparent material, and the protective layer can buffer external impact on the measuring cylinder layer.
The beneficial effect of the utility model is to provide a constant temperature measuring cylinder, comprising: the measuring cylinder layer is in a hollow cylindrical shape; the protective layer is arranged on the outer wall of the measuring cylinder layer and fixed on the base; the heating layer is disposed between the graduated cylinder layer and the protective layer, wherein the heating layer is capable of transferring heat to the graduated cylinder layer to maintain a constant temperature. By designing the measuring cylinder into a double-layer structure, the measuring cylinder layer of the inner layer is made of glass, so that the volume of a target solution can be accurately measured, and the glass is corrosion-resistant and is not easy to react with liquid; meanwhile, the measuring cylinder layer of the outer protective layer, which can well protect the inner layer, is free from direct impact, so that the service life of the constant-temperature measuring cylinder is prolonged. The heating layer solves the problem that the error is too large when the measuring cylinder measures the solution with a higher crystallization point due to too low temperature in winter, the measuring cylinder layer is always kept in a constant temperature gradient through the heating layer, the measuring accuracy is greatly improved, and the adaptability and the accuracy of the measuring cylinder are improved.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of a constant temperature measuring cylinder of the present invention;
FIG. 2 is a longitudinal cross-sectional view of a thermostatic measuring cylinder of the present invention;
fig. 3 is a partially enlarged view of a in fig. 2.
In the figure:
1. measuring the cylinder layer; 11. weighing scales; 2. a protective layer; 21. positioning blocks; 3. a heating layer; 31. a buffer solution; 32. heating resistance wires; 33. a seal ring; 34. a support block; 341. positioning a groove; 4. a base; 41. a battery pack; 42. and adjusting the switch.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the utility model include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 to 3, the present invention provides a constant temperature measuring cylinder, including: the measuring cylinder comprises a measuring cylinder layer 1, a protective layer 2, a heating layer 3 and a base 4, wherein the protective layer 2 is arranged on the outer wall of the measuring cylinder layer 1, the protective layer 2 is fixed on the base 4, the protective layer 2 is made of transparent materials, and the actually-weighed scales of the measuring cylinder layer 1 on the inner side can be observed through the protective layer 2; the base 4 is arranged at the bottommost part of the constant-temperature measuring cylinder, the base 4 is rectangular, on one hand, a supporting effect is provided for the measuring cylinder layer 1 at the upper part, and meanwhile, the area of the base 4 is larger than the projection area of the measuring cylinder layer 1, so that better stability can be provided; the heating layer 3 is arranged between the measuring cylinder layer 1 and the protective layer 2, and the heating layer 3 can heat the measuring cylinder layer 1 at the inner layer and keep the constant temperature. Wherein the heating layer 3 is capable of transferring heat to the graduated cylinder layer 1 to maintain a constant temperature. For the above components, the following is detailed:
measuring cylinder layer 1
The measuring cylinder layer 1 is in a hollow cylindrical shape, and the measuring cylinder layer 1 is suitable for weighing the volume of liquid; the graduated flask layer 1 is the glass material, and the graduated flask layer 1 of glass material is not only corrosion-resistant, and stable in structure is difficult to take place the reaction with liquid, and the graduated flask layer 1 life of glass material is longer moreover, and other materials of comparing can also reduce measuring error. The outer wall of the measuring cylinder layer 1 is provided with a plurality of weighing scales 11.
The protective layer 2 is made of transparent materials, and the protective layer 2 can buffer external collision on the measuring cylinder layer 1. Protective layer 2 adopts transparent material, conveniently sees through protective layer 2 observes the inlayer the actual scale 11 of weighing of graduated flask layer 1, and protective layer 2 still chooses soft materials for use, works as when protective layer 2 receives outside striking, protective layer 2 can cushion the impact that receives to the protection inlayer graduated flask layer 1 prevents that it from receiving the striking damage.
Heating layer 3
The heating layer 3 comprises a heating resistance wire 32, the heating resistance wire 32 is an adjustable resistance, and the adjustment switch 42 can control the heating resistance wire 32 to be constant at different temperatures; one side of the heating resistance wire 32 is annularly fixed on the inner wall of the protective layer 2, and the other side of the heating resistance wire 32 is attached to the outer wall of the measuring cylinder layer 1. The heating layer 3 further comprises a buffer solution 31, the buffer solution 31 is filled between the measuring cylinder layer 1 and the protective layer 2, and the buffer solution 31 wraps the outer wall of the heating resistance wire 32. The buffer solution 31 wraps the heating resistance wire 32, so that on one hand, the buffer solution 31 can disperse the impact force on the protective layer 2 to the periphery, and the measuring cylinder layer 1 on the inner side is prevented from being damaged by external force; on the other hand, the buffer solution 31 can also transfer the heat of the heating resistance wire 32, so that the buffer solution can uniformly transfer the heat to the inner measuring cylinder layer 1, and the temperature can be kept constant.
The top of zone of heating 3 is provided with a sealing ring 33, the both sides of sealing ring 33 are fixed respectively the graduated flask layer 1 outer wall with protective layer 2 inner wall. The sealing ring 33 seals the buffer solution 31 between the measuring cylinder layer 1 and the protective layer 2; a supporting block 34 is arranged at the bottom end of the heating layer 3, the supporting block 34 is in a disc shape, the diameter of the supporting block 34 is larger than that of the measuring cylinder layer 1, and the diameter of the supporting block 34 is equal to the inner diameter of the protective layer 2; the supporting block 34 plays a role of supporting the measuring cylinder layer 1 so as to enable the measuring cylinder layer to be vertically fixed on the base 4; the supporting block 34 is fixed on the outer bottom wall of the measuring cylinder layer 1, and the side wall of the supporting block 34 is vertically fixed on the inner wall of the protective layer 2. A positioning groove 341 is formed in the side wall of the supporting block 34, a positioning block 21 adapted to the positioning groove 341 is arranged on the inner wall of the protective layer 2, the positioning block 21 is inserted into the positioning groove 341 and can support the measuring cylinder layer 1, a positioning groove 341 is formed in the side wall of the supporting block 34, a positioning block 21 is arranged on the inner wall of the protective layer 2, and the positioning block 21 is inserted into the positioning groove 341, so that the connection firmness between the supporting block 34 and the protective layer 2 is increased, the sealing performance of the supporting block 34 can be improved, and the buffer solution 31 is prevented from leaking from the gap of the supporting block 34.
Base 4
The base 4 is rectangular, on one hand, a supporting effect is provided for the measuring cylinder layer 1 at the upper part, and meanwhile, the area of the base 4 is larger than the projection area of the measuring cylinder layer 1, so that better stability can be provided; the base 4 is hollow, a battery pack 41 is detachably arranged in the base 4, and the heating resistance wire 32 is electrically connected with the battery pack 41. An adjusting switch 42 is arranged on the side wall of the base 4, and the adjusting switch 42 is electrically connected with the battery pack 41; the adjusting switch 42 is provided with a plurality of adjusting gears, the adjusting switch 42 can adjust the power of the heating resistance wire 32, and the adjusting switch 42 can increase or decrease the power of the heating resistance wire 32, so that the temperature of the measuring cylinder layer 1 is increased or decreased.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A constant temperature measuring cylinder, comprising:
the measuring cylinder comprises a measuring cylinder layer (1), a protective layer (2), a heating layer (3) and a base (4), wherein the measuring cylinder layer (1) is in a hollow column shape;
the protective layer (2) is arranged on the outer wall of the measuring cylinder layer (1), and the protective layer (2) is fixed on the base (4);
the heating layer (3) is arranged between the measuring cylinder layer (1) and the protective layer (2), wherein
The heating layer (3) is capable of transferring heat to the graduated cylinder layer (1) to maintain a constant temperature.
2. A thermostatic measuring cylinder according to claim 1,
the heating layer (3) comprises a heating resistance wire (32), one side of the heating resistance wire (32) is annularly fixed on the inner wall of the protective layer (2), and the other side of the heating resistance wire (32) is attached to the outer wall of the measuring cylinder layer (1).
3. A thermostatic measuring cylinder according to claim 2,
the base (4) is hollow, a battery pack (41) is detachably arranged in the base (4), and the heating resistance wire (32) is electrically connected with the battery pack (41).
4. A thermostatic measuring cylinder according to claim 3,
an adjusting switch (42) is arranged on the side wall of the base (4), and the adjusting switch (42) is electrically connected with the battery pack (41);
the adjusting switch (42) is provided with a plurality of adjusting gears, and the adjusting switch (42) can be adjusted to adjust the power of the heating resistance wire (32).
5. A thermostatic measuring cylinder according to claim 4,
the heating layer (3) further comprises a buffer solution (31), the buffer solution (31) is filled between the measuring cylinder layer (1) and the protective layer (2), and the buffer solution (31) wraps the outer wall of the heating resistance wire (32).
6. A thermostatic measuring cylinder according to claim 5,
the top of zone of heating (3) is provided with a sealing ring (33), the both sides of sealing ring (33) are fixed respectively graduated flask layer (1) outer wall with protective layer (2) inner wall.
7. A thermostatic measuring cylinder according to claim 6,
the bottom end of the heating layer (3) is provided with a supporting block (34), and the supporting block (34) is in a disc shape;
the supporting block (34) is fixed on the outer bottom wall of the measuring cylinder layer (1), and the side wall of the supporting block (34) is vertically fixed on the inner wall of the protective layer (2).
8. A thermostatic measuring cylinder according to claim 7,
a positioning groove (341) is formed in the side wall of the supporting block (34), a positioning block (21) matched with the positioning groove (341) is arranged on the inner wall of the protective layer (2), and the positioning block (21) is arranged on the inner wall of the protective layer
The positioning block (21) is inserted into the positioning groove (341) and can support the measuring cylinder layer (1).
9. A thermostatic measuring cylinder according to claim 8,
the measuring cylinder layer (1) is made of glass, and a plurality of weighing scales (11) are arranged on the outer wall of the measuring cylinder layer (1).
10. A thermostatic measuring cylinder according to claim 9,
the protective layer (2) is made of transparent materials, and the protective layer (2) can buffer external collision received by the measuring cylinder layer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121597390.7U CN215832795U (en) | 2021-07-14 | 2021-07-14 | Constant temperature graduated flask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121597390.7U CN215832795U (en) | 2021-07-14 | 2021-07-14 | Constant temperature graduated flask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215832795U true CN215832795U (en) | 2022-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121597390.7U Active CN215832795U (en) | 2021-07-14 | 2021-07-14 | Constant temperature graduated flask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215832795U (en) |
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2021
- 2021-07-14 CN CN202121597390.7U patent/CN215832795U/en active Active
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