A sealed storage case for a layerless thermal material

By designing sealing strips and slot structures, combined with piezoelectric ceramic sheets and an airbag system, a sealed storage box for unprotected thermal materials is achieved, ensuring both sealing performance and structural integrity under different pressure environments. This solves the sealing problem of unprotected thermal materials in high-altitude or low-pressure environments and extends the material's lifespan.

CN224312350UActive Publication Date: 2026-06-02JIANGSU WANBAO RUIDA HI TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU WANBAO RUIDA HI TECH CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Unprotected heat-sensitive materials are prone to sealing failure due to pressure difference in high-altitude or low-pressure environments, allowing outside air and moisture to enter and affecting material performance and lifespan.

Method used

Design a sealed storage box that uses a structure of sealing strips and slots, combined with piezoelectric ceramic sheets and an airbag system, to achieve instant expansion adjustment of the sealing strips and self-balancing of internal and external pressure differences, thus ensuring airtightness.

Benefits of technology

It improves sealing and structural integrity, prevents external interference, extends material life, and adapts to different pressure environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a heat sensitive material technical field especially for a kind of sealing type storage box of heat sensitive material without protective layer, including box, the top of box is equipped with lid, sealing assembly is equipped between box and lid, symmetrically equipped with pressure balance assembly on lid, sealing assembly includes the sealing clamping slot and sealing clamping strip of inside and outside arrangement, sealing clamping slot is opened in the top four edges of box, sealing clamping strip is fixedly connected to the bottom four edges of lid, the inner chamber bottom of sealing clamping slot is equidistantly spaced and is fixedly connected with several first piezoelectric ceramic pieces, the bottom of sealing clamping strip is equipped with several embedding slot, second piezoelectric ceramic piece is fixedly embedded in embedding slot, the inner chamber of sealing clamping strip is equipped with sealing air bag, in the utility model, the expansion degree of sealing clamping strip can be adjusted to ensure that it is closely combined with sealing clamping slot to improve the overall sealing effect, and it has the ability of self-balancing internal and external pressure difference, thereby further protecting the sealing property and structural integrity of box.
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Description

Technical Field

[0001] This utility model relates to the field of thermosensitive materials technology, specifically a sealed storage box for thermosensitive materials without a protective layer. Background Technology

[0002] Thermosensitive materials are functional materials that are sensitive to temperature changes. Their properties change significantly with temperature. Common thermosensitive materials include thermistors and thermal paper. These materials are widely used in temperature measurement, automatic control, information recording and other fields, such as electronic thermometers and copier paper, providing convenience for modern technology and life.

[0003] Unprotected thermosensitive materials are thermosensitive materials that are not subjected to additional physical or chemical protection treatment. They are directly exposed to the environment and can respond quickly to temperature changes. Such materials usually have high sensitivity and can detect small temperature fluctuations in a short time. However, due to the lack of a protective layer, they are more sensitive to environmental factors and are easily affected by external interference or damage, thus affecting their performance and service life.

[0004] Unprotected thermally sensitive materials require sealed storage boxes for safekeeping. However, in high-altitude areas (such as plateaus and mountains) or low-pressure environments (such as aircraft cargo holds and vacuum laboratories), pressure differences will occur between the inside and outside of the box. Under the influence of pressure differences, the seals may deform or loosen, thereby compromising the box's airtightness. In this case, external air, moisture, or contaminants may enter the box, affecting the performance and quality of the unprotected thermally sensitive materials. Therefore, a sealed storage box for unprotected thermally sensitive materials is proposed to address the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a sealed storage box made of heat-sensitive material without a protective layer. The expansion degree of the sealing strip can be adjusted in real time according to the actual situation to ensure that the sealing strip is always tightly fitted with the sealing groove, thereby improving the overall sealing effect. It also has the ability to self-balance the internal and external pressure difference, thereby further protecting the sealing performance and structural integrity of the box, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A sealed storage box for heat-sensitive materials without a protective layer includes a box body, a lid on top of the box body, a sealing assembly between the box body and the lid, and symmetrical pressure-balancing assemblies on the lid. The sealing assembly includes sealing grooves and sealing strips arranged internally and externally. The sealing grooves are located on the four top sides of the box body, and the sealing strips are fixedly connected to the four bottom sides of the lid. A plurality of first piezoelectric ceramic sheets are evenly spaced and fixedly connected to the bottom of the inner cavity of the sealing grooves. A plurality of embedding slots are located on the bottom of the sealing strips, and second piezoelectric ceramic sheets are fixedly embedded in the embedding slots. A sealing airbag is located in the inner cavity of the sealing strips, and a vent pipe is located on the top of the sealing strips. An air pump is located on the top of the lid. The lid and box body are designed to match specific dimensions, and the air pump is fixedly connected to the top of the lid.

[0008] As a further optimization of this utility model, the sealing groove has a cross-section that is narrower at the top and wider at the bottom, and the sealing strip and the sealing groove are positioned correspondingly and matched in specifications.

[0009] As a further optimization of this utility model, the second piezoelectric ceramic sheet and the first piezoelectric ceramic sheet are set in equal numbers, corresponding positions, and matching specifications.

[0010] As a further optimization of this utility model, the bottom end of the vent pipe passes through the top of the sealing strip and is connected to the sealing airbag, while the top end of the vent pipe passes through the box cover and is connected to the air pump.

[0011] As a further optimization of this utility model, the pressure-balancing component includes a rubber mounting plate, which is fixedly connected to the top of the box cover. A pressure-balancing airbag is fixedly installed at the bottom of the rubber mounting plate. A pressure-balancing air pipe is connected to the side of the pressure-balancing airbag near the side wall of the box cover. The end of the pressure-balancing air pipe away from the pressure-balancing airbag passes through the side wall of the box cover and communicates with the outside, and is flush with the side wall of the box cover.

[0012] As a further optimization of this utility model, the following features are provided: a waterproof and breathable membrane is provided at the through end of the constant pressure air pipe; a protective baffle is rotatably connected to one side of the constant pressure air pipe at the side wall of the box cover via a rotating shaft; and a first magnetic block is fixedly connected to the outer side of the end of the protective baffle.

[0013] As a further optimization of this utility model, a second magnetic block is provided below the rotating shaft and fixedly connected to the side wall of the box cover, and a third magnetic block is fixedly connected to the side of the box cover away from the rotating shaft where the pressure-regulating air pipe passes through. The second and third magnetic blocks are both in position and matched with the first magnetic block.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, the enclosure can be used to place heat-sensitive materials without a protective layer, and the lid can seal the top of the enclosure, thus protecting the interior. The sealing assembly can adjust the expansion of the sealing strip in real time according to the actual situation to ensure that the sealing strip always fits tightly with the sealing groove, thereby improving the sealing effect between the enclosure and the lid. Furthermore, the inner and outer sealing grooves and sealing strips provide double sealing insurance between the enclosure and the lid. Even if one set of sealing grooves and sealing strips is damaged, the other set of sealing grooves and sealing strips can still provide reliable and stable sealing performance. The pressure balancing assembly can provide the ability to self-balance the pressure difference between the inside and outside of the enclosure, greatly reducing or avoiding the impact of the pressure difference between the inside and outside of the enclosure, thereby further protecting the sealing performance and structural integrity of the enclosure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0018] Figure 3 This is a cross-sectional view of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the vent pipe of this utility model;

[0020] Figure 5 This is a schematic diagram of the sealing strip of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the pressure-balancing airbag of this utility model;

[0022] Figure 7 This utility model Figure 2 Enlarged view of point A;

[0023] Figure 8 This utility model Figure 3 Enlarged view of point B;

[0024] Figure 9 This utility model Figure 5 Enlarged view of point C.

[0025] In the diagram: 1. Box body; 2. Box cover; 3. Sealing assembly; 31. Sealing slot; 32. Sealing strip; 33. First piezoelectric ceramic sheet; 34. Mounting groove; 35. Second piezoelectric ceramic sheet; 36. Sealing airbag; 37. Ventilation pipe; 38. Air pump; 4. Pressure balancing assembly; 41. Rubber mounting plate; 42. Pressure balancing airbag; 43. Pressure balancing air pipe; 431. Rotating shaft; 432. Protective baffle; 433. First magnetic block; 434. Second magnetic block; 435. Third magnetic block; 44. Waterproof and breathable membrane. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Please see Figure 1-9 This utility model provides a technical solution:

[0029] A sealed storage box for heat-sensitive materials without a protective layer includes a box body 1, a box cover 2 on the top of the box body 1, a sealing assembly 3 between the box body 1 and the box cover 2, and a pressure balancing assembly 4 symmetrically arranged on the box cover 2. The sealing assembly 3 includes sealing grooves 31 and sealing strips 32 arranged internally and externally. The sealing grooves 31 are opened on the top four sides of the box body 1, and the sealing strips 32 are fixedly connected to the bottom four sides of the box cover 2. Several first piezoelectric ceramic sheets 33 are arranged at equal intervals and fixedly connected to the bottom of the inner cavity of the sealing grooves 31. Several embedding grooves 34 are opened on the bottom of the sealing strips 32, and second piezoelectric ceramic sheets 35 are fixedly embedded in the embedding grooves 34. The inner cavity of the sealing strips 32 is provided with a sealing airbag 36, and the top of the sealing strips 32 is provided with a vent pipe 37. The top of the box cover 2 is provided with an air pump 38. The box cover 2 and the box body 1 are matched in specifications, and the air pump 38 is fixedly connected to the top of the box cover 2.

[0030] As a further implementation of this solution, the sealing groove 31 is designed with a cross-section that is narrow at the top and wide at the bottom. The sealing strip 32 and the sealing groove 31 are positioned correspondingly and matched in specifications. The design of being narrow at the top and wide at the bottom can provide a stable and reliable sealing strength after the sealing strip 32 is inserted into the sealing groove 31 and expands.

[0031] As a further implementation of this solution, the second piezoelectric ceramic sheet 35 and the first piezoelectric ceramic sheet 33 are set in equal numbers, corresponding positions and matching specifications. The second piezoelectric ceramic sheet 35 and the first piezoelectric ceramic sheet 33 can monitor the degree of expansion of each part after the sealing strip 32 is inserted into the sealing groove 31, so as to avoid local leakage caused by insufficient expansion in a certain place.

[0032] As a further implementation of this solution, the bottom end of the vent pipe 37 passes through the top of the sealing strip 32 and is connected to the sealing airbag 36. The top end of the vent pipe 37 passes through the box cover 2 and is connected to the air pump 38. The air pump 38 can inflate and deflate the sealing airbag 36 through the vent pipe 37 to adjust the expansion degree of the sealing strip 32, so as to ensure the effectiveness of the sealing strip 32.

[0033] As a further implementation of this solution, the pressure balancing assembly 4 includes a rubber mounting plate 41, which is fixedly connected to the top of the box cover 2. A pressure balancing airbag 42 is fixedly installed at the bottom of the rubber mounting plate 41. A pressure balancing air pipe 43 is connected to the side of the pressure balancing airbag 42 near the side wall of the box cover 2. The end of the pressure balancing air pipe 43 away from the pressure balancing airbag 42 passes through the side wall of the box cover 2 and connects to the outside, and is flush with the side wall of the box cover 2. The pressure balancing assembly 4 can provide the ability to self-balance the pressure difference between the inside and outside of the box 1, greatly reducing or avoiding the impact of the pressure difference between the inside and outside of the box 1, thereby further protecting the sealing performance and structural integrity of the box 1.

[0034] As a further implementation of this solution, the through end of the pressure-regulating air pipe 43 is provided with a waterproof and breathable membrane 44. On one side of the pressure-regulating air pipe 43 that penetrates the side wall of the box cover 2, a protective baffle 432 is rotatably connected via a pivot 431. A first magnetic block 433 is fixedly connected to the outer side of the end of the protective baffle 432. A second magnetic block 434 is fixedly connected to the side wall of the box cover 2 below the pivot 431. A third magnetic block 435 is fixedly connected to the side of the pressure-regulating air pipe 43 that penetrates the side wall of the box cover 2 away from the pivot 431. The second magnetic block 434 and the third magnetic block 435 are both corresponding to the first magnetic block 433 in position and matching in specifications. The protective baffle 432 can be flexibly rotated through the pivot 431. Therefore, when the box 1 is in use, the through end of the pressure-regulating air pipe 43 can be exposed to ensure its normal use, and when the box 1 is not in use, the through end of the pressure-regulating air pipe 43 can be closed to provide it with good protection.

[0035] Workflow: First, power on all electrical appliances and connect an external controller. When storing, first place the unprotected heat-sensitive material inside the housing 1, then close the lid 2. Insert the inner and outer sealing strips 32 from the sealing assembly 3 into the corresponding inner and outer sealing slots. Then, control the air pump 38 to inflate. The air pump 38 inflates the sealing airbag 36 through the air pipe 37. The sealing airbag 36 expands due to inflation, and its expansion causes the sealing strips 32 to expand, stably locking into the sealing groove 31. When the sealing strips 32 are fully expanded and tightly fitted within the sealing groove 31, the second piezoelectric ceramic sheet 35 will contact and apply force to the first piezoelectric ceramic sheet 33 in the mounting groove 34. When pressure is applied, the second piezoelectric ceramic sheet 35 and the first piezoelectric ceramic sheet 33 convert mechanical energy into electrical energy and generate a voltage signal. This voltage signal is transmitted to an external controller, which then controls the air pump 38 to stop inflating. At this time, the inner and outer sealing strips 32 expand and tightly fit into the inner and outer sealing grooves 31, achieving excellent sealing through a double sealing method. The pressure balancing component 4 can automatically adjust the pressure inside and outside the chamber 1 by utilizing the compressibility of gas and Boyle's law, thereby balancing the pressure difference. When the internal pressure of the chamber 1 increases, the pressure balancing airbag 42 contracts and discharges the internal gas to the outside through the pressure balancing air pipe 43. When the internal pressure of the chamber 1 decreases, the pressure balancing airbag 42 contracts. The pressure bladder 42 expands and absorbs external gas through the pressure-regulating air tube 43. In this way, the pressure-regulating air bladder 42 can quickly respond to pressure difference changes, significantly reducing or avoiding the impact of internal and external pressure differences on the chamber 1, thereby further protecting the airtightness and structural integrity of the chamber 1. The waterproof and breathable membrane 44 can prevent external moisture and dust from entering while ensuring the ventilation of the pressure-regulating air tube 43. The protective baffle 432 can be flexibly rotated through the pivot 431, so that the through end of the pressure-regulating air tube 43 can be exposed when the chamber 1 is in use to ensure its normal use, and the through end of the pressure-regulating air tube 43 can be closed when the chamber 1 is not in use to provide it with good protection. When the end of the tube needs protection, the protective baffle 432 is rotated to block the end of the pressure-regulating air tube 43 by the pivot 431. At the same time, the first magnetic block 433 will be in contact with the third magnetic block 435. Finally, the current blocking position of the protective baffle 432 is located by the magnetic attraction of the first magnetic block 433 and the third magnetic block 435. When the end of the pressure-regulating air tube 43 needs to be exposed for use, the protective baffle 432 blocking the end of the pressure-regulating air tube 43 is rotated towards the second magnetic block 434 by the pivot 431. The first magnetic block 433 will be in contact with the second magnetic block 434. Finally, the current position of the protective baffle 432 is located by the magnetic attraction of the first magnetic block 433 and the second magnetic block 434.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealed storage case for a layerless heat-sensitive material, comprising a case body (1), characterized in that: The box body (1) is provided with a box cover (2) on top, and a sealing component (3) is provided between the box body (1) and the box cover (2). A pressure balancing component (4) is symmetrically provided on the box cover (2). The sealing assembly (3) includes sealing grooves (31) and sealing strips (32) provided inside and outside. The sealing grooves (31) are opened on the top four sides of the box body (1). The sealing strips (32) are fixedly connected to the bottom four sides of the box cover (2). A number of first piezoelectric ceramic sheets (33) are arranged at equal intervals and fixedly connected to the bottom of the inner cavity of the sealing grooves (31). A number of embedding grooves (34) are opened at the bottom of the sealing strips (32). Second piezoelectric ceramic sheets (35) are fixedly embedded in the embedding grooves (34). The inner cavity of the sealing strips (32) is provided with sealing airbags (36). The top of the sealing strips (32) is provided with vent pipes (37). The top of the box cover (2) is provided with air pumps (38). The lid (2) and the body (1) are designed to match each other in terms of specifications, and the air pump (38) is fixedly connected to the top of the lid (2).

2. The sealed storage case for a thermal material without a protective layer according to claim 1, characterized in that: The sealing groove (31) has a cross-section that is narrow at the top and wide at the bottom, and the sealing strip (32) is positioned in a corresponding manner to the sealing groove (31) and is matched in specifications.

3. The sealed storage case for a thermal material without a protective layer according to claim 1, characterized in that: The second piezoelectric ceramic sheet (35) and the first piezoelectric ceramic sheet (33) are set in equal numbers, corresponding positions and matching specifications.

4. The sealed storage case for a thermal material without a protective layer according to claim 1, characterized by: The bottom end of the vent pipe (37) passes through the top of the sealing strip (32) and is connected to the sealing airbag (36), and the top end of the vent pipe (37) passes through the box cover (2) and is connected to the air pump (38).

5. The sealed storage case for a thermal material without a protective layer according to claim 1, characterized by: The pressure-balancing assembly (4) includes a rubber mounting plate (41), which is fixedly connected to the top of the box cover (2). A pressure-balancing airbag (42) is fixedly installed at the bottom of the rubber mounting plate (41). A pressure-balancing air pipe (43) is connected to the side of the pressure-balancing airbag (42) near the side wall of the box cover (2). The end of the pressure-balancing air pipe (43) away from the pressure-balancing airbag (42) passes through the side wall of the box cover (2) and communicates with the outside world and is flush with the side wall of the box cover (2).

6. A sealed storage case for a layerless thermal material according to claim 5, wherein: The pressure-regulating air pipe (43) has a waterproof and breathable membrane (44) at its through end. The side of the pressure-regulating air pipe (43) that passes through the side wall of the box cover (2) is rotatably connected to a protective baffle (432) via a rotating shaft (431). A first magnetic block (433) is fixedly connected to the outer side of the end of the protective baffle (432).

7. A sealed storage case for a layerless thermal material according to claim 6, wherein: Below the rotating shaft (431) is a second magnetic block (434) fixedly connected to the side wall of the box cover (2). The pressure-regulating air pipe (43) passes through the side wall of the box cover (2) and is fixedly connected to a third magnetic block (435) on the side away from the rotating shaft (431). The second magnetic block (434) and the third magnetic block (435) are both in the same position as the first magnetic block (433) and are of the same specifications.