Weighing device
The scale device with a cooling element addresses the issue of inaccurate measurements of volatile liquids by reducing solvent evaporation, ensuring precise weighing through temperature control.
Patent Information
- Application Number
- CN202421498769.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-06-27
AI Technical Summary
Existing weighing instruments cannot accurately weigh liquids, especially volatile solvents, resulting in unstable weighing accuracy and results.
A weighing device is designed, including a weighing device and a cooling member, which reduces the volatilization rate of the solvent by placing the reagent bottle on the cooling member, thereby improving weighing accuracy.
By reducing the temperature of the reagent bottle and reducing the volatilization of the solvent, the accurate weighing of the volatile solvent is achieved and the weighing accuracy is improved.
Smart Images
Figure CN223107048U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of weighing instruments, and particularly relates to a weighing device. Background Art
[0002] Currently, the weighing instruments used in existing laboratories are generally electronic balances, which have high precision and complete functions and can fully meet the needs of laboratory quality analysis.
[0003] However, in the process of using the weighing instruments in the related art, liquids cannot be accurately weighed, which will affect the weighing accuracy and results. Summary of the Utility Model
[0004] In view of the above problems, this application provides a weighing device that can solve the problem that existing weighing instruments cannot accurately weigh liquids during use.
[0005] To solve the above technical problems, this application proposes a weighing device, including:
[0006] A weighing instrument;
[0007] A cooling member, which is arranged on the weighing instrument.
[0008] In the technical solution of the embodiment of this application, when weighing a solvent with a high saturated vapor pressure value and being volatile, only need to first place an empty reagent bottle on the cooling member and start the cooling member to make the reagent bottle in a low-temperature state, and then add the corresponding solvent into the reagent bottle. Since the reagent bottle is always in a low-temperature state under the action of the cooling member, when the solvent is added into the reagent bottle, the evaporation rate of the solvent can be reduced, so that accurate data can be weighed by the weighing instrument, and the weighing accuracy is significantly improved.
[0009] In some embodiments, the weighing device further includes a storage bottle, and the storage bottle is arranged on the cooling member. In this way, it is convenient to add the solvent to be weighed.
[0010] In some embodiments, the cooling member includes a metal bath, and the storage bottle is arranged on the metal bath. In this way, the temperature of the storage bottle can be conveniently controlled through the metal bath.
[0011] In some embodiments, a first groove is arranged on the metal bath, and the storage bottle is located in the first groove. In this way, the storage bottle is wrapped in the first groove, and the low temperature in the first groove can be directly transmitted to the surface of the storage bottle, avoiding the influence of the external environment on the surface temperature of the storage bottle.
[0012] In some embodiments, under the condition that the storage bottle is disposed in the first groove, the position of the storage bottle relative to the first groove is fixed. In this way, when tightening the bottle cap on the storage bottle, the storage bottle can be prevented from rotating relative to the first groove.
[0013] In some embodiments, under the condition that the storage bottle is disposed in the first groove, the surface of the storage bottle contacts the inner wall of the first groove. In this way, the cold temperature in the first groove is directly transferred to the surface of the storage bottle, thereby enabling rapid cooling.
[0014] In some embodiments, under the condition that the storage bottle is disposed in the first groove, at least a part of the storage bottle is located outside the first groove. In this way, it is avoided that the storage bottle is entirely located in the first groove, which is inconvenient for taking and placing the storage bottle.
[0015] In some embodiments, a display panel is provided on the metal bath. In this way, it is convenient to view the temperature of the metal bath.
[0016] In some embodiments, a temperature adjustment button is provided on the metal bath. In this way, it is convenient to adjust the controlled temperature of the metal bath.
[0017] In some embodiments, a bottle cap is provided on the storage bottle, and the bottle cap is detachably connected to the open end of the storage bottle. In this way, it is convenient to disassemble or install the bottle cap from the open end of the storage bottle.
[0018] In some embodiments, an anti-corrosion layer is provided on the inner wall of the storage bottle. In this way, the corrosion of the storage bottle by the solvent can be avoided.
[0019] In some embodiments, a placement tray is provided on the weighing device, and the cooling member is disposed on the placement tray.
[0020] In some embodiments, a second groove is provided on the placement tray, and the cooling member is located in the second groove.
[0021] In some embodiments, under the condition that the cooling member is disposed in the second groove, the position of the cooling member relative to the second groove is fixed. In this way, the cooling member can be prevented from shaking relative to the placement tray.
[0022] In some embodiments, under the condition that the cooling member is disposed in the second groove, at least a part of the cooling member is located outside the second groove. In this way, it is avoided that the cooling member is entirely located in the second groove, which is inconvenient for taking and placing the cooling member.
[0023] In some embodiments, a display screen is provided on the weighing device. In this way, it is convenient to view the weighing result.
[0024] The above description is only an overview of the technical solution of the present application. In order to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically exemplified below. Description of the Drawings
[0025] By reading the detailed description of the following embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the embodiments and are not considered to be a limitation of the present application. Moreover, in all the drawings, the same reference numerals are used to represent the same components. In the drawings:
[0026] Figure 1 is a schematic structural diagram of a weighing device according to some embodiments of the present application;
[0027] Figure 2 is a schematic diagram of a storage bottle according to some embodiments of the present application;
[0028] Figure 3 is a schematic diagram of a metal bath according to some embodiments of the present application.
[0029] The reference numerals in the specific embodiments are as follows:
[0030] 11. Weigher; 12. Display screen; 13. Cooling member; 131. First groove; 14. Display panel; 15. Temperature adjustment button; 16. Placing tray; 161. Second groove; 17. Storage bottle; 171. Open end. Detailed Description of the Embodiments
[0031] The embodiments of the technical solution of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to illustrate the technical solution of the present application more clearly, and thus are only examples and cannot be used to limit the protection scope of the present application.
[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above description of the drawings are intended to cover non-exclusive inclusion.
[0033] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, "a plurality" means more than two unless otherwise specifically defined.
[0034] As used herein, the term "embodiment" means that the specific features, structures, or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The phrase appearing at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.
[0035] In the description of the embodiments of the present application, the term "and / or" is merely a relationship describing associated objects, indicating that there can be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.
[0036] In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two). Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).
[0037] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of the present application.
[0038] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.
[0039] Next, the present application will be described in detail.
[0040] Currently, the weighing instruments used in laboratories are generally electronic balances, which have high precision and complete functions, and can fully meet the needs of laboratory quality analysis.
[0041] However, when a solvent with a high saturated vapor pressure value and easy volatility (such as an ether solvent) is used during the liquid preparation experiment weighing, its volatility ability at normal temperature is strong, resulting in continuous volatilization of the liquid in the reagent bottle during the process of gradually adding liquid, making the weighing indication unstable, thus affecting the weighing accuracy and results.
[0042] To solve the problem that existing weighing instruments cannot accurately weigh liquids due to continuous liquid volatilization during the weighing process, an embodiment of the present application provides a weighing device. This weighing device can not only be used to weigh volatile liquids, but also can weigh non-volatile liquids, fixtures, etc. The following descriptions of the present application are all illustrated by taking the weighing of volatile liquids as an example.
[0043] As Figure 1 shown, the weighing device includes a weighing instrument 11 and a cooling member 13, wherein the cooling member 13 is disposed on the weighing instrument 11.
[0044] In this embodiment, the weighing instrument 11 can be an existing electronic balance, electronic scale, etc., and can be specifically determined according to the actual situation, and the embodiments of this specification do not limit this.
[0045] The cooling member 13 in this embodiment can be a metal bath, a refrigerator, etc., and can be specifically determined according to the actual situation, and the embodiments of this specification do not limit this.
[0046] In this embodiment, the cooling member 13 can be placed flat on the weighing instrument 11, or the cooling member 13 is fixed on the weighing instrument 11 by clamping, and can be specifically determined according to the actual situation, and the embodiments of this specification do not limit this.
[0047] In the technical solution of the embodiment of the present application, when weighing a solvent with a high saturated vapor pressure value and easy volatility, for example: when weighing an ether solvent, it is necessary to first place the empty reagent bottle on the cooling member 13, and then start the cooling member 13. At this time, under the action of the cooling member 13, the reagent bottle can be in a low-temperature state, and then the corresponding solvent is added to the reagent bottle.
[0048] Since the evaporation rate of the solvent is positively correlated with the ambient temperature, when the ambient temperature decreases, the evaporation rate of the solvent can be reduced. In this way, because the reagent bottle is always in a low-temperature state under the action of the cooling member 13, when the solvent is added to the reagent bottle, under the protection of the reagent bottle, the solvent added to the reagent bottle is always in a low-temperature state. At this time, the evaporation rate of the solvent can be reduced, and thus accurate data can be weighed by the weighing instrument 11, significantly improving the weighing accuracy.
[0049] According to some embodiments of the present application, as Figure 1 shown, the weighing device further includes a storage bottle 17, and the storage bottle 17 is disposed on the cooling member 13.
[0050] In this embodiment, the storage bottle 17 is movably placed on the cooling member 13. When it is necessary to remove the storage bottle 17 from the cooling member 13, it is only necessary to grab the storage bottle 17 from the cooling member 13 by an external force.
[0051] In this embodiment, since the storage bottle 17 is arranged on the cooling member 13, in this way, it is convenient to add the solvent to be weighed.
[0052] According to some embodiments of the present application, the cooling member 13 includes a metal bath, and the storage bottle 17 is arranged in the metal bath.
[0053] In this embodiment, the cooling member 13 is not limited to the metal bath. The cooling member 13 can also be a refrigerator or the like, and specifically can be determined according to the actual situation, and the embodiments of this specification do not limit this.
[0054] In this embodiment, the lower temperature control limit of the metal bath is as low as -30°C. The material of the metal bath can be stainless steel, aluminum alloy, semiconductor material, etc. The structure of the metal bath is a prior art, so the structure and working principle of the metal bath will not be described in detail here.
[0055] In this embodiment, when the storage bottle 17 is placed in the metal bath, after connecting the metal bath to an external power supply, the storage bottle 17 can be made to be in a low temperature state by using the metal bath.
[0056] According to some embodiments of the present application, as Figure 3 shown, a first groove 131 is provided on the metal bath, and the storage bottle 17 is located in the first groove 131. In this way, the storage bottle 17 is wrapped in the first groove 131, and the cold temperature generated in the first groove 131 can be directly transferred to the surface of the storage bottle 17, avoiding the influence of the external environment on the surface temperature of the storage bottle 17.
[0057] According to some embodiments of the present application, under the condition that the storage bottle 17 is arranged in the first groove 131, the position of the storage bottle 17 relative to the first groove 131 is fixed.
[0058] In this embodiment, the storage bottle 17 can be a triangular prism, a quadrangular prism, etc. The internal space formed by the first groove 131 corresponds to the shape of a triangular prism or a quadrangular prism. At the same time, the size of the storage bottle 17 corresponds to the opening size of the first groove 131. When the storage bottle 17 is placed in the first groove 131, the prism-shaped storage bottle 17 is correspondingly located in the prism-shaped first groove 131, so that the storage bottle 17 and the first groove 131 can be prevented from rotating.
[0059] Of course, it can be understood that the storage bottle 17 can also be other irregular shapes, such as conical. Similarly, the internal space formed by the first groove 131 can also be other irregular shapes. The embodiments of the present application do not limit the specific shapes of the storage bottle 17 and the first groove 131, as long as the storage bottle 17 and the first groove 131 do not rotate relative to each other after the storage bottle 17 is placed in the first groove 131.
[0060] During use, after the storage bottle 17 is filled with liquid, the bottle cap on the storage bottle 17 needs to be tightened again. Since the position of the storage bottle 17 relative to the first groove 131 is fixed, when tightening the bottle cap on the storage bottle 17, rotation between the storage bottle 17 and the first groove 131 can be avoided.
[0061] Moreover, when tightening the bottle cap on the storage bottle 17, it is not necessary to take out the storage bottle 17 from the first groove 131 before tightening the bottle cap onto the storage bottle 17. This can avoid transferring the storage bottle 17 from the first groove 131 to the external environment and then tightening the bottle cap, thereby avoiding the contact time between the storage bottle 17 without the bottle cap and the external environment and reducing the evaporation of the liquid in the storage bottle 17.
[0062] According to some embodiments of the present application, under the condition that the storage bottle 17 is disposed in the first groove 131, the surface of the storage bottle 17 contacts the inner wall of the first groove 131. In this way, the cold temperature generated in the first groove 131 in the metal bath is directly transferred to the surface of the storage bottle, thereby enabling rapid cooling of the storage bottle 17.
[0063] According to some embodiments of the present application, under the condition that the storage bottle 17 is disposed in the first groove 131, at least a part of the storage bottle 17 is located outside the first groove 131.
[0064] In this embodiment, the height of the storage bottle 17 can be 95 mm, 100 mm, etc., and the depth of the first groove 131 can be 70 mm, 80 mm, etc. Specifically, it can be determined according to the actual situation, and the embodiments of this specification do not limit this.
[0065] In this way, when the storage bottle 17 is placed in the first groove 131, a part of the storage bottle 17 is located outside the first groove 131, avoiding the storage bottle 17 being entirely located in the first groove 131, thereby facilitating the taking and placing of the storage bottle 17.
[0066] According to some embodiments of the present application, a display panel 14 is provided on the metal bath. The connection structure between the metal bath and the display panel 14 in the present application is prior art and will not be elaborated here.
[0067] Since the display panel 14 is provided on the metal bath, it is convenient to view the temperature of the metal bath.
[0068] According to some embodiments of the present application, a temperature adjustment button 15 is provided on the metal bath. The connection structure between the metal bath and the temperature adjustment button 15 in the present application is prior art and will not be elaborated herein.
[0069] Since the temperature adjustment button 15 is provided on the metal bath, in this way, it is convenient to adjust the control temperature of the metal bath.
[0070] According to some embodiments of the present application, as Figure 2 shown, a bottle cap is provided on the storage bottle 17, and the bottle cap is detachably connected to the opening end 171 of the storage bottle 17. In this way, it is convenient to detach or install the bottle cap from the opening end 171 of the storage bottle.
[0071] In this embodiment, the bottle cap can be threadedly connected to the opening end 171 of the storage bottle 17, or the bottle cap can be snap-fitted to the opening end 171 of the storage bottle 17. Specifically, it can be determined according to the actual situation, and the embodiments of this specification do not limit this.
[0072] According to some embodiments of the present application, an anti-corrosion layer is provided on the inner wall of the storage bottle 17.
[0073] In this embodiment, the anti-corrosion layer can be a fluoropolymer layer, a polypropylene layer, etc. Specifically, it can be determined according to the actual situation, and the embodiments of this specification do not limit this.
[0074] Since the anti-corrosion layer is provided on the inner wall of the storage bottle 17, in this way, the corrosion of the storage bottle by the solvent can be avoided.
[0075] According to some embodiments of the present application, as Figure 1 or Figure 3 shown, a placement tray 16 is provided on the weighing device 11, and the cooling member 13 is arranged on the placement tray 16.
[0076] In this embodiment, the placement tray 16 can be integrally formed with the weighing device 11, or the placement tray 16 is connected to the weighing device 11 by bolts. Specifically, it can be determined according to the actual situation, and the embodiments of this specification do not limit this.
[0077] In this embodiment, the cooling member 13 is placed on the placement tray 16, which can avoid the weighing device 11 from being damaged by collision after the cooling member 13 directly contacts the weighing device 11.
[0078] According to some embodiments of the present application, as Figure 1 or Figure 3 shown, a second groove 161 is provided on the placement tray 16, and the cooling member 13 is located in the second groove 161. In this way, under the limitation of the second groove 161, it can be avoided that the cooling member 13 directly detaches from the placement tray 16 when being collided by an external force.
[0079] According to some embodiments of the present application, under the condition that the cooling member 13 is disposed in the second groove 161, the position of the cooling member 13 relative to the second groove 161 is fixed.
[0080] In this embodiment, with reference to Figure 1 As shown, the internal space formed by the second groove 161 may be cylindrical, and the cooling member 13 may be a triangular prism, a quadrangular prism, etc. After the cooling member 13 is placed into the second groove 161, the side wall of the cooling member 13 abuts against the inner wall of the second groove 161. In this way, under the joint limitation of the side wall of the cooling member 13 and the inner wall of the second groove 161, the cooling member 13 can be prevented from shaking relative to the second groove 161.
[0081] Of course, it can be understood that the cooling member 13 may also be other irregular shapes, such as a cone. Similarly, the internal space formed by the second groove 161 may also be other irregular shapes. The specific shapes of the cooling member 13 and the second groove 161 are not limited in the embodiments of the present application, as long as the cooling member 13 does not shake relative to the second groove 161 after being placed into the second groove 161.
[0082] According to some embodiments of the present application, under the condition that the cooling member 13 is disposed in the second groove 161, at least a part of the cooling member 13 is located outside the second groove 161.
[0083] In this embodiment, the height of the cooling member 13 may be 180 mm, 200 mm, etc., and the depth of the second groove 161 may be 120 mm, 130 mm, etc. Specifically, it can be determined according to the actual situation, and the embodiments of this specification do not limit this.
[0084] In this way, when the cooling member 13 is placed into the second groove 161, a part of the cooling member 13 is located outside the second groove 161, preventing the cooling member 13 from being entirely located inside the second groove 161, thus facilitating the taking and placing of the cooling member 13.
[0085] According to some embodiments of the present application, as Figure 1 or Figure 3 shown, a display screen 12 is provided on the weighing device 11.
[0086] In this embodiment, the connection structure between the weighing device 11 and the display screen 12 and the working principle of the display screen 12 are both prior arts, and will not be elaborated here.
[0087] Since the display screen 12 is provided on the weighing device 11, in this way, it is convenient to view the weighing result.
[0088] When the weighing device provided by this application is in use, first, the storage bottle 17 can be placed into the first groove 131 on the metal bath. At the same time, the bottle cap on the storage bottle 17 is removed. Then, after adjusting the temperature control of the metal bath to cool down to -30°C and stabilizing, the reading of the weighing device 11 is leveled and set to zero.
[0089] At this time, lithium bis(trifluoromethanesulfonyl)imide, ethylene glycol dimethyl ether, and ether additives are successively added to the storage bottle 17. Before weighing each substance, the weighing device 11 is reset and adjusted to zero. After the weighing is completed, the storage bottle 17 is not taken out from the first groove 131 on the metal bath for the time being. The bottle cap is manually covered and tightened. Then, the storage bottle 17 filled with the ingredients is manually taken out to a room temperature environment for manual shaking or placed in a heating oscillator for shaking, so that the preparation of the solution can be completed.
[0090] It should be noted later that: the above embodiments are only used to illustrate the technical solutions of this application, rather than limiting them; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of each embodiment of this application, and they should all be covered within the scope of the claims and the description of this application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. This application 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 weighing device, characterized in that, Comprising: Weigher; Cooling member, the cooling member is arranged on the weigher; the cooling member includes a metal bath, and a first groove is arranged on the metal bath; Storage bottle, the storage bottle is arranged in the first groove.
2. The weighing device according to claim 1, wherein, Under the condition that the storage bottle is arranged in the first groove, the position of the storage bottle relative to the first groove is fixed.
3. The weighing device according to claim 2, wherein Under the condition that the storage bottle is arranged in the first groove, the surface of the storage bottle contacts the inner wall of the first groove.
4. The weighing device according to claim 2, characterized in that, Under the condition that the storage bottle is arranged in the first groove, at least part of the storage bottle is located outside the first groove.
5. The weighing device according to claim 1, characterized in that A display panel is arranged on the metal bath.
6. The weighing device according to claim 1, characterized in that, A temperature adjustment button is arranged on the metal bath.
7. The weighing device according to any one of claims 1 to 6, characterized in that A bottle cap is arranged on the storage bottle, and the bottle cap is detachably connected to the open end of the storage bottle.
8. The weighing device according to any one of claims 1 to 6, characterized in that, An anti-corrosion layer is arranged on the inner wall of the storage bottle.
9. The weighing device according to claim 1, characterized in that, A placement tray is arranged on the weigher, and the cooling member is arranged on the placement tray.
10. The weighing device according to claim 9, characterized in that, A second groove is arranged on the placement tray, and the cooling member is located in the second groove.
11. The weighing device according to claim 10, characterized in that, Under the condition that the cooling member is arranged in the second groove, the position of the cooling member relative to the second groove is fixed.
12. The weighing device according to claim 10, characterized in that, Under the condition that the cooling member is arranged in the second groove, at least part of the cooling member is located outside the second groove.
13. The weighing device according to claim 1, characterized in that, A display screen is arranged on the weigher.