Volumetric flask

By setting a vacuum layer and a heat-conducting wire structure between the inner and outer jackets of the volumetric flask, and using heating materials and an impermeable membrane to control gas entry, the temperature control problem caused by the vacuum structure is solved, enabling controllable heating or heat preservation, and improving ease of use and effectiveness.

CN222305839UActive Publication Date: 2025-01-07HUNAN PROVINCIAL COMMODITY QUALITY INSPECTION INST
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Patent Information

Application Number
CN202420499159.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-14
Publication Date
2025-01-07
Estimated Expiration
2034-03-14

AI Technical Summary

Technical Problem

The vacuum structure of existing volumetric flasks makes temperature control difficult, affecting temperature stability and ease of operation during later use.

Method used

Design a volumetric flask with an inner and outer jacket structure. The outer side of the inner jacket has a receiving cavity and a heat-conducting wire. A vacuum layer is formed between the inner and outer jackets. The receiving cavity contains a heating material. Heat is conducted through the heat-conducting wire to control the temperature. Gas entry is controlled by an impermeable membrane to achieve heating or heat preservation.

Benefits of technology

It enables controllable heating or insulation of the volumetric flask's internal temperature, and features a simple structure, convenient operation, and good performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to medical instruments, and discloses a volumetric flask, which comprises a flask body (1) and a flask cap (2) connected with the flask body (1), the flask body (1) comprises an inner interlayer (101) and an outer interlayer (102) which are integrally formed, a vacuum layer is formed between the inner interlayer (101) and the outer interlayer (102), an accommodating cavity (103) is integrally formed on the bottom surface of the outer side of the inner interlayer (101), and the accommodating cavity (103) is communicated with the inner interlayer (101). A heating material (3) is arranged in the containing cavity (103), a plurality of heat conduction wires (4) are arranged on the outer side face of the inner interlayer (101), the containing cavity (103) is connected with the outer interlayer (102), and an anti-ventilation film (5) is arranged at an opening of the containing cavity (103). The volumetric flask disclosed by the utility model is simple in structure, convenient to operate and good in using effect.
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Description

Technical Field

[0001] The utility model relates to the technical field of containers, in particular to a volumetric flask. Background Art

[0002] In the existing volumetric flask, a vacuum structure is used to keep the temperature inside the volumetric flask constant, thereby maintaining the performance of the items inside the volumetric flask stable. However, the vacuum structure also has a certain impact on the later use of the volumetric flask, and it is difficult to control the temperature inside the volumetric flask during the later use.

[0003] Therefore, it is necessary to design a volumetric flask to solve or overcome the above-mentioned technical problems. Utility Model Content

[0004] In view of this, the technical problem to be solved by the utility model is to provide a volumetric flask, which can heat or keep warm during use, so as to control the temperature inside the volumetric flask to meet the use requirements, has a simple structure, is easy to operate, and has a good use effect.

[0005] To achieve the above-mentioned purpose, the utility model provides a volumetric flask, comprising a bottle body and a bottle cap connected to the bottle body, the bottle body comprising an inner interlayer and an outer interlayer integrally formed, a vacuum layer is formed between the inner interlayer and the outer interlayer, a receiving cavity is integrally formed on the outer bottom surface of the inner interlayer, a heating material is arranged in the receiving cavity, a plurality of heat conductive wires are arranged on the outer surface of the inner interlayer, the receiving cavity is connected to the outer interlayer and an anti-air permeability film is arranged at the opening of the receiving cavity.

[0006] As a preferred embodiment of the utility model, the inner interlayer includes an inner interlayer side wall formed as a columnar structure and an inner interlayer bottom surface integrally formed with the inner interlayer side wall, the outer interlayer includes an outer interlayer side wall formed as a columnar structure and an outer interlayer bottom surface integrally formed with the outer interlayer side wall, and the upper end edge of the inner interlayer side wall is connected to the upper end edge of the outer interlayer side wall.

[0007] More preferably, the accommodating cavity is integrally formed on the bottom surface of the inner interlayer, and a gas passage is formed between the accommodating cavity and the bottom surface of the outer interlayer, and the air-proof membrane is arranged at the air inlet of the gas passage.

[0008] As another preferred embodiment of the utility model, the air inlet of the gas channel is arranged on the bottom surface of the outer interlayer, and the air inlet of the gas channel is formed as a single circular through hole; or the air inlet of the gas channel is formed as a plurality of fine air inlets.

[0009] Further preferably, the diameter of each circular through hole is 0.5-2 mm, and the diameter of each fine air inlet is 0.01-0.2 mm.

[0010] As another preferred embodiment of the present invention, a positioning flange is formed at the open end of the bottle body.

[0011] Furthermore, the bottle cap includes an inner plug and an outer cover body arranged outside the inner plug, wherein

[0012] The outer peripheral surface of the positioning flange is provided with an external thread, and the outer cover body is provided with an internal thread, so that the outer cover body and the positioning flange can be threadedly connected; or

[0013] The positioning flange is formed as an annular flange, and an inner buckle flange is formed at the open end of the outer cover body. The outer cover body is engaged with the positioning flange by engaging the inner buckle flange with the annular flange.

[0014] As a specific structural form of the utility model, the heating material includes iron oxide powder, activated carbon, vermiculite, water and salt.

[0015] As another specific structural form of the utility model, the heat-conducting wire is formed into a spiral shape, or the heat-conducting wire is formed into a plurality of vertical stripes, and the heat-conducting wire is attached to or embedded in the inner interlayer.

[0016] As another specific structural form of the utility model, an adhesive is provided on one side of the anti-air permeability film.

[0017] Compared with the prior art, the volumetric flask described in the utility model has the following advantages:

[0018] The volumetric flask described in the utility model is configured with an inner interlayer and an outer interlayer as the bottle body, a vacuum structure is formed between the inner interlayer and the outer interlayer, and a containing cavity is arranged on the inner interlayer. In an initial state, the containing cavity is also in a vacuum state. When in use, air is filled into the containing cavity, and the heat-conducting wire conducts the heat generated by the heating material to the inner interlayer, thereby controlling the temperature in the bottle body. The utility model has a simple structure, is easy to operate, and has a good use effect.

[0019] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic implementation modes and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0021] Figure 1 It is a structural schematic diagram of a specific embodiment of the bottle body described in the embodiment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of another specific embodiment of the bottle body described in the embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of a specific embodiment of the volumetric flask described in the embodiment of the utility model.

[0024] Description of Reference Numerals

[0025] 1 bottle body 101 inner layer

[0026] 102 outer interlayer 103 receiving cavity

[0027] 104 gas channel 105 positioning flange

[0028] 2 Bottle Cap 201 Inner Plug

[0029] 202 outer cover 3 heating material

[0030] 4 thermal conductive wire 5 anti-permeable membrane DETAILED DESCRIPTION

[0031] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation modes described herein are only used to illustrate and explain the present invention, and the protection scope of the present invention is not limited to the specific implementation modes described below.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the description of the present invention, it is necessary to understand that the orientation terms are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention.

[0034] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] like Figure 3As shown, the utility model provides a volumetric flask, including a bottle body 1 and a bottle cap 2 connected to the bottle body 1, the bottle body 1 includes an inner interlayer 101 and an outer interlayer 102 which are integrally formed, a vacuum layer is formed between the inner interlayer 101 and the outer interlayer 102, a receiving cavity 103 is integrally formed on the outer bottom surface of the inner interlayer 101, a heating material 3 is arranged in the receiving cavity 103, a plurality of heat conductive wires 4 are arranged on the outer surface of the inner interlayer 101, the receiving cavity 103 is connected to the outer interlayer 102 and an air-proof membrane 5 is arranged at the opening of the receiving cavity 103.

[0036] In the utility model, the inner interlayer 101 and the outer interlayer 102 form an integral structure, and an accommodating cavity 103 is integrally formed between the inner interlayer 101 and the outer interlayer 102. Specifically, the inner interlayer 101, the outer interlayer 102 and the accommodating cavity 103 enclose a vacuum space for maintaining a constant temperature in the space of the inner interlayer 101. The accommodating cavity 103 is provided with a heating material 3, and the heat-conducting wire 4 is arranged on the inner interlayer 101 and extends into the accommodating cavity 103, so that the heat emitted by the heating material 3 can be conducted to the inner interlayer 101 through the heat-conducting wire 4, and while heating the inner interlayer 101, the articles in the inner interlayer 101 are also heated or kept warm. At the same time, since there is a vacuum layer between the inner interlayer 101 and the outer interlayer 102, the heat generated by the heating material 3 cannot be conducted toward the outer interlayer 102, but is conducted toward the inner interlayer 101, so that the heat preservation effect is good.

[0037] As a preferred embodiment, the bottle body 1 of the utility model is formed of a transparent material, preferably transparent glass, so as to facilitate observation of the specific form of the items in the bottle body 1. Of course, according to actual use requirements, the bottle body 1 can also be formed of other materials, such as resin, polymer materials, etc. At the same time, according to different actual use scenarios and different use requirements, the bottle body 1 is formed of colored glass to avoid the influence of light on the performance of the items in the bottle body 1, and also facilitate observation.

[0038] As a preferred embodiment of the utility model, the inner interlayer 101 includes an inner interlayer side wall formed as a columnar structure and an inner interlayer bottom surface integrally formed with the inner interlayer side wall, the outer interlayer 102 includes an outer interlayer side wall formed as a columnar structure and an outer interlayer bottom surface integrally formed with the outer interlayer side wall, and the upper end edge of the inner interlayer side wall is connected to the upper end edge of the outer interlayer side wall.

[0039] As a preferred embodiment of the utility model, the inner interlayer side wall of the inner interlayer 101 is formed into a cylinder, preferably a cylindrical body, or a square cylindrical structure or a polygonal cylindrical structure, the inner interlayer bottom surface is integrally formed with the inner interlayer side wall, and the inner interlayer bottom surface is formed into a plane. Relatedly, the outer interlayer side wall is preferably a cylindrical body, or a square cylindrical structure or a polygonal cylindrical structure, the outer interlayer bottom surface is integrally formed with the outer interlayer side wall, and the outer interlayer bottom surface is formed into a plane for easy placement.

[0040] As a preferred embodiment of the present invention, the accommodating cavity 103 is integrally formed on the bottom surface of the inner interlayer, and a gas channel 104 is formed between the accommodating cavity 103 and the bottom surface of the outer interlayer, and the anti-permeability membrane 5 is arranged at the air inlet of the gas channel 104.

[0041] As a preferred embodiment of the utility model, the accommodating cavity 103 is formed as a cylindrical cavity, or a square cylindrical air, or a polygonal cylindrical air, the upper end surface of the accommodating cavity 103 and the outer side surface of the bottom surface of the inner interlayer are integrally formed, the lower end surface of the accommodating cavity 103 is formed as a plane, and a transition arc surface is formed between the lower end surface and the side surface. A gas channel 104 is formed between the lower end surface of the accommodating cavity 103 and the bottom surface of the outer interlayer, which can prevent the heat generated by the heating material 3 from being excessively transferred to the outer interlayer 102, and can also control the air intake by controlling the diameter of the gas channel 104, so as to control the heating time of the heating material 3 and ensure the use effect.

[0042] As a preferred embodiment of the present invention, Figure 2 and Figure 3 As shown, the air inlet of the gas channel 104 is arranged on the bottom surface of the outer interlayer, and the air inlet of the gas channel 104 is formed as a single circular through hole; or the air inlet of the gas channel 104 is formed as a plurality of fine air inlets.

[0043] As a preferred embodiment of the present invention, the air inlet of the gas channel 104 is arranged on the bottom surface of the outer interlayer and is integrally formed with the bottom surface of the outer interlayer, and the air outlet of the gas channel 104 is integrally formed with the lower end of the accommodating cavity 103 .

[0044] It is conceivable that a filtering structure may be provided in the gas channel 104 to filter the air entering the accommodating chamber 103, thereby achieving the purpose of controlling the water content of the air and removing some impurities in the air. The air intake volume may also be controlled through the filtering structure.

[0045] As a preferred embodiment of the present invention, the diameter of each circular through hole is 0.5-2 mm, and the diameter of each fine air inlet is 0.01-0.2 mm.

[0046] As a preferred embodiment of the utility model, the gas channel 104 of the present application has the following two specific structural forms: First, the gas channel 104 is formed as a single channel, and the diameter of the single channel is 0.5-2mm, preferably 0.5-1mm. Second, the air inlet of the gas channel 104 is provided with a baffle, or the accommodation cavity 103 and the outer sandwich bottom plate are set as a solid structure, and the microchannel is set on the baffle or the solid structure. Preferably, the diameter of the single microchannel is 0.01-0.2mm, and more preferably, the diameter of the single microchannel is 0.01-0.05mm.

[0047] As a preferred embodiment of the present invention, a positioning flange 105 is formed at the open end of the bottle body 1 .

[0048] More preferably, the bottle cap 2 comprises an inner plug 201 and an outer cover body 202 arranged outside the inner plug 201, wherein

[0049] An external thread is disposed on the outer circumferential surface of the positioning flange 105 , and an internal thread is disposed on the outer cover body 202 , so that the outer cover body 202 and the positioning flange 105 can be threadedly connected.

[0050] Optionally, the positioning flange 105 is formed as an annular flange, and the opening end of the outer cover body 202 is formed with an inner buckle flange, and the outer cover body 202 is engaged with the positioning flange 105 by engaging the inner buckle flange with the annular flange.

[0051] The positioning flange 105 of the utility model has the following two specific structural forms: first, the positioning flange 105 is formed as an annular flange, and the lower end opening of the outer cover 202 is rolled inward, so as to be able to clamp the positioning flange 105. Second, an external thread structure is formed on the outer peripheral surface of the positioning flange 105, and a corresponding internal thread structure is formed on the outer cover 202, and the bottle cap 2 is connected to the bottle body 1 through the external thread structure and the internal thread structure.

[0052] As a preferred embodiment of the present invention, the heating material 3 includes iron oxide powder, activated carbon, vermiculite, water and salt.

[0053] As a preferred embodiment of the utility model, the heating material 3 includes iron oxide powder, activated carbon, vermiculite, water, and salt, wherein, when air enters the accommodation chamber 103, the water and salt in the heating material 3 react chemically with the iron oxide powder and the activated carbon to generate a large amount of heat energy. Specifically, the surfaces of the iron oxide powder and the activated carbon will adsorb water molecules, and while adsorbing the water molecules, a chemical reaction will occur to release a large amount of heat energy, thereby increasing the temperature in the accommodation chamber 103.

[0054] As a preferred embodiment of the present invention, the heat conductive wire 4 is formed into a spiral shape, or the heat conductive wire 4 is formed into a plurality of vertical stripes, and the heat conductive wire 4 is attached to or embedded in the inner interlayer 101 .

[0055] As a preferred embodiment of the utility model, the heat conductive wire 4 is arranged on the inner interlayer 101, and can be arranged on the outer peripheral surface of the inner interlayer 101, or can be embedded in the inner interlayer 101, for heating the cavity area in the inner interlayer 101. According to the actual heat conduction efficiency, the specific structural form of the heat conductive wire 4 is set. Specifically, the heat conductive wire 4 can be formed into a spiral structure, or into a vertical stripe structure, that is, the vertical stripe can be understood as a line parallel to the central axis of the inner interlayer 101.

[0056] As a preferred embodiment of the present invention, an adhesive is provided on one surface of the air-impermeable film 5 .

[0057] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0058] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0059] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A volumetric flask, characterized in that: The invention comprises a bottle body (1) and a bottle cap (2) connected to the bottle body (1); the bottle body (1) comprises an inner interlayer (101) and an outer interlayer (102) which are integrally formed; a vacuum layer is formed between the inner interlayer (101) and the outer interlayer (102); a receiving cavity (103) is integrally formed on the outer bottom surface of the inner interlayer (101); a heating material (3) is arranged in the receiving cavity (103); a plurality of heat-conducting wires (4) are arranged on the outer surface of the inner interlayer (101); the receiving cavity (103) is connected to the outer interlayer (102) and an air-proof membrane (5) is arranged at the opening of the receiving cavity (103).

2. The volumetric flask according to claim 1, characterized in that The inner interlayer (101) includes an inner interlayer side wall formed into a columnar structure and an inner interlayer bottom surface integrally formed with the inner interlayer side wall, and the outer interlayer (102) includes an outer interlayer side wall formed into a columnar structure and an outer interlayer bottom surface integrally formed with the outer interlayer side wall, and the upper end edge of the inner interlayer side wall is connected to the upper end edge of the outer interlayer side wall.

3. The volumetric flask according to claim 2, characterized in that: The accommodating cavity (103) is integrally formed on the bottom surface of the inner interlayer, and a gas channel (104) is formed between the accommodating cavity (103) and the bottom surface of the outer interlayer, and the air-proof membrane (5) is arranged at the air inlet of the gas channel (104).

4. The volumetric flask according to claim 3, characterized in that: The air inlet of the gas channel (104) is arranged on the bottom surface of the outer interlayer, and the air inlet of the gas channel (104) is formed as a single circular through hole; or the air inlet of the gas channel (104) is formed as a plurality of fine air inlets.

5. The volumetric flask according to claim 4, characterized in that: The diameter of each circular through hole is 0.5-2 mm, and the diameter of each fine air inlet is 0.01-0.2 mm.

6. The volumetric flask according to any one of claims 1 to 5, characterized in that The opening end of the bottle body (1) is formed with a positioning flange (105).

7. The volumetric flask according to claim 6, characterized in that: The bottle cap (2) comprises an inner plug (201) and an outer cover body (202) arranged on the outer side of the inner plug (201), wherein The outer peripheral surface of the positioning flange (105) is provided with an external thread, and the outer cover (202) is provided with an internal thread, so that the outer cover (202) and the positioning flange (105) can be threadedly connected; or The positioning flange (105) is formed as an annular flange, and the opening end of the outer cover body (202) is formed with an inwardly buckled flange, and the outer cover body (202) is clamped with the positioning flange (105) by clamping the inwardly buckled flange with the annular flange.

8. The volumetric flask according to any one of claims 1 to 5, characterized in that The heat-conducting wire (4) is formed into a spiral shape, or the heat-conducting wire (4) is formed into a plurality of vertical stripes, and the heat-conducting wire (4) is attached to or embedded in the inner interlayer (101).

9. The volumetric flask according to any one of claims 1 to 5, characterized in that An adhesive is provided on one surface of the air-impermeable film (5).