CN218994559U - Time temperature indicating device - Google Patents
Time temperature indicating device Download PDFInfo
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- CN218994559U CN218994559U CN202223225035.4U CN202223225035U CN218994559U CN 218994559 U CN218994559 U CN 218994559U CN 202223225035 U CN202223225035 U CN 202223225035U CN 218994559 U CN218994559 U CN 218994559U
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Abstract
The utility model relates to a time temperature indicating device, comprising: a shell, in which a groove is formed; the display device comprises an indication part, a display part and a display part, wherein the indication part is arranged in a groove and comprises a transparent pipe, a current limiting part, an indicator and a sealing part, the transparent pipe is provided with a first end and a second end which are opposite, the current limiting part is fixedly arranged at the first end, the indicator is arranged in the transparent pipe, and the sealing part is arranged at one side of the indicator far away from the current limiting part and is used for preventing the indicator from presenting a porous state; the adsorption materials are arranged at one side of the current limiting piece far away from the transparent tube at intervals; and an actuating member, which is drawably disposed between the flow restricting member and the adsorbing member. According to the time temperature indicating device, the indicator and the sealing piece are arranged in the transparent pipe, and the sealing piece moves towards one side of the indicator under the action of atmospheric pressure along with consumption of the liquid indicator, and the indicator is extruded in the moving process, so that the indicator in a solid-liquid mixed state is prevented from generating pores, and the accumulated time of abnormal temperature can be accurately indicated.
Description
Technical Field
The utility model relates to the technical field of indicating equipment, in particular to a time and temperature indicating device.
Background
The patent application 201910834462.6 discloses a time temperature indicating device, which uses fat, fatty acid or fatty acid ester as an indicator, and when the indicator is adsorbed by an adsorption member through a flow limiting member, the liquid level of the indicator in a transparent tube is reduced, so that the accumulated time of the cold chain temperature higher than the critical temperature is indicated by the liquid level. However, the time temperature indicating device has a defect that since the indicator is fat, fatty acid or fatty acid ester, one process is needed for solidification and melting, when the temperature of the cold chain is close to the critical temperature, the indicator is in a flocculent and solid-liquid mixed supercooled state, at this time, the liquid indicator can seep out through the flow limiting member and be absorbed by the absorbing member, the solid indicator remains in the transparent tube, and after a period of time, the indicator in the transparent tube is in a spongy porous shape, so that a large error exists in the abnormal temperature time indicated by the liquid level of the indicator.
Disclosure of Invention
Based on this, it is necessary to provide a time temperature indicating device with higher accuracy.
A time temperature indicating device comprising:
the shell comprises an upper shell and a lower shell, and a groove is formed in the lower shell;
the indicating part is arranged in the groove and comprises a transparent pipe, a current limiting piece, an indicator and a sealing piece, wherein the transparent pipe is provided with a first end and a second end which are opposite to each other, the current limiting piece is fixedly arranged at the first end, the indicator is arranged in the transparent pipe and is in contact with the current limiting piece, and the sealing piece is arranged at one side, far away from the current limiting piece, of the indicator and is used for preventing the indicator from being in a porous state;
the adsorption materials are arranged at one side of the current limiting piece far away from the transparent tube at intervals; and
and the starting piece is arranged between the current limiting piece and the adsorption material in a extractable way, the starting piece is extracted, and the adsorption material is contacted with the current limiting piece.
In one embodiment, the closure is made of any one of hydrogel, water-absorbent resin, or polystyrene.
In one embodiment, the closure is provided with a conspicuous color.
In one embodiment, the indicator is at least one of a fat, a fatty acid, or a fatty acid ester.
In one embodiment, the housing includes an upper housing and a lower housing.
In one embodiment, the upper housing is provided with a viewing window.
In one embodiment, the side of the closure facing away from the indicator is further provided with a drying inhibitor.
In one embodiment, the flow restrictor is made of a porous material.
In one embodiment, the porous material is selected from any one of nylon, gypsum, or fibrous materials.
In one embodiment, the transparent tube has an inner diameter of 0.5mm to 3mm.
In the indication part of the time temperature indication device, the first end of the transparent tube is provided with the current limiting piece, the indicator and the sealing piece are arranged in the transparent tube, the sealing piece can radially move under the action of external force when the transparent tube is closed, when the time temperature indication device is in an activated state, along with consumption of the liquid indicator, the stress of the sealing piece is in an unbalanced state, the sealing piece moves to one side of the indicator under the action of atmospheric pressure, and the indicator is extruded in the moving process, so that the indicator in a solid-liquid mixed state is prevented from generating pores, and the section height of the indicator can accurately indicate the accumulated time of abnormal temperature.
Drawings
FIG. 1 is a schematic diagram of a time temperature indicator according to an embodiment;
FIG. 2 is a schematic perspective view of the time temperature indicating device shown in FIG. 1;
FIG. 3 is a schematic diagram of a time temperature indicator according to another embodiment;
fig. 4 is a schematic perspective view of the time temperature indicating device shown in fig. 2.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be understood that the terms "connected," "fixed," and the like are used in the present utility model in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; the mechanical connection can be realized, and the welding connection can be realized; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In this context, unless otherwise specified, parts of the respective raw materials refer to parts by weight.
Referring to fig. 1 and 2, a time temperature indicating device according to an embodiment includes: the casing 10, the indication part 20, the adsorbing material 30 and the actuator 40.
The casing 10 comprises an upper casing 11 and a lower casing 12, wherein a groove is arranged in the lower casing 12, the groove is used for accommodating and fixing the indication part 20, the adsorbing material 30 and the starting piece 40, the upper casing 11 is covered on the lower casing 12 and is used for closing the lower casing 12, and the upper casing 11 is made of transparent materials, so that a user can directly see the position of the liquid level of the indicator 23 in the indication part 20 through the upper casing 11.
Further, a covering layer (not shown) is disposed on the upper housing 11, and the covering layer is partially hollowed out to form an observation window 111, the position of the observation window 111 corresponds to the position of the indication portion 20, and a user can directly observe the liquid column height of the indicator 23 in the transparent tube 21 through the observation window 111.
Further, as shown in fig. 2, time scales are further provided on the cover layers at both sides of the observation window 111, and by setting the time scales, a user can intuitively judge the accumulated time of the abnormal temperature by comparing the time scales corresponding to the height of the liquid column.
The indication part 20 is fixedly arranged in the groove of the lower shell 12, and the indication part 20 further comprises a transparent tube 21, a current limiter 22, an indicator 23 and a sealing piece 24.
The transparent tube 21 has opposite first and second ends 211 and 212, and the transparent tube 21 is made of a transparent material so that the liquid column height of the indicator 23 is visible to a user through the transparent tube 21. The inner diameter of the transparent tube 21 is 0.5 mm-3 mm, and by limiting the inner diameter of the transparent tube 21, the indicator 23 can be adhered in the transparent tube 21 by means of surface tension in a state that the first end 211 of the transparent tube 21 is relatively closed, thereby reducing the sealing degree requirement of the sealing piece 24.
The transparent tube 21 may be prismatic, cylindrical or other regular shape, preferably the transparent tube 21 is a cylinder, which on the one hand has excellent load-bearing capacity, preventing the transparent tube 21 from being broken under pressure during the production process; on the other hand, the cylinder has an omnidirectional optical refractive power, and the user can clearly see the liquid column of the indicator 23 from that angle.
Optionally, materials for preparing the transparent tube 21 include, but are not limited to: PVC, PET, PP, PE, glass and acrylic.
The flow-limiting member 22 has one end fixedly disposed at the first end 211 of the transparent tube 21 and the other end extending out of the transparent tube 21, the flow-limiting member 22 has a micropore characteristic and has good affinity for the indicator 23, and when the indicator 23 is in a liquid state, the indicator 23 can permeate from the end of the flow-limiting member 22 close to the indicator 23 to the end far from the indicator 23 under the action of capillary force, and is then absorbed by the absorbing material 30.
In this embodiment, the end of the flow-limiting member 22 away from the transparent tube 21 is cone-shaped, which is beneficial to controlling the contact area between the flow-limiting member 22 and the adsorbing material 30, so as to control the loss of the indicator 23 passing through the flow-limiting member 22 in unit time, i.e. control the liquid column descending rate in unit time by controlling the contact area between the flow-limiting member 22 and the adsorbing material 30.
Optionally, materials for preparing the restrictor 22 include, but are not limited to: nylon, gypsum, fibrous materials.
The indicator 23 is disposed in the transparent tube 21 and is in direct contact with the current limiter 22, the indicator 23 has a specific phase transition temperature, when the ambient temperature is higher than the phase transition temperature, the indicator 23 is gradually melted into a liquid state, and in the melting process, the indicator 23 is in a flocculent solid-liquid mixed state, when the ambient temperature is lower than the phase transition temperature, the indicator 23 is gradually solidified into a solid state, and in the solidifying process, the indicator 23 is in a flocculent solid-liquid mixed state.
Optionally, the indicator 23 is selected from at least one of a fat, a fatty acid or a fatty acid ester.
Preferably, the indicator 23 has a colored dye dissolved therein, thereby making the color of the indicator 23 more conspicuous and facilitating the user's observation.
Preferably, when the indicator 23 is in a liquid state, it has a non-wetting property to the transparent tube 21, so that the indicator 23 is prevented from adhering to the wall of the transparent tube 21, thereby preventing erroneous indication of the liquid column height.
The sealing piece 24 is arranged on one side of the indicator 23 away from the flow limiting piece 22, is contacted with the indicator 23 and is mutually insoluble with the indicator 23, and the sealing piece 24 is used for sealing the liquid level of the indicator 23 and can prevent the external air from being in direct contact with the liquid level of the indicator 23.
In the activated state of the time temperature indicating device, the closure member 24 is also in a fixed state when the indicator 23 is in a solid state. When the indicator 23 is in a solid-liquid mixed state, the liquid indicator 23 can be absorbed by the absorbing material 30 through the flow limiting piece 22, the stress balance of the sealing piece 24 is destroyed along with the gradual consumption of the liquid indicator 23, the sealing piece 24 moves to the indicator 23 side under the action of atmospheric pressure, the moving process produces extrusion action on the solid indicator 23, and the solid indicator 23 collapses until the sealing piece 24 is in an equilibrium state again, and the indicator 23 can be prevented from presenting a porous shape due to the extrusion action of the sealing piece 24. When the indicator 23 is completely in the liquid state, the force balance of the sealing member 24 is broken as the indicator 23 in the liquid state is gradually consumed, and the sealing member 24 moves to the indicator 23 side by the atmospheric pressure. So that the liquid column height of the indicator 23 can accurately indicate the accumulated time of the abnormal temperature.
Specifically, the cross section of the sealing member 24 is equal to the cross section of the pipe of the transparent pipe 21, so that the sealing member 24 can just seal the pipe and has certain hardness, and the sealing member can radially move in the pipe of the transparent pipe 21 as a whole under the action of atmospheric pressure.
Preferably, the closure 24 material does not have an affinity for the indicator 23, preventing the indicator 23 from penetrating into the closure 24.
Preferably, the sealing member 24 is provided with a striking color, and the sealing member 24 can be used for indicating the accumulated time of abnormal temperature instead of the liquid column interface, so that the striking degree of the indication is improved.
Optionally, materials for making closure 24 include, but are not limited to: hydrogels, water-absorbent resins, polystyrene foams.
In the embodiments shown in fig. 3 and 4, the side of the sealing member 24 away from the indicator 23 is further provided with a drying inhibitor 25, and by providing the drying inhibitor 25, the moisture-containing sealing agent can be prevented from drying due to water loss, thereby affecting the sealing effect, and the drying inhibitor 25 has the characteristics of low freezing point, difficult drying and non-mutual solubility with the sealing agent.
Optionally, the anti-dry agent 25 material includes, but is not limited to, silicone oil, lithium-based esters, orange oil, arachidonic acid.
The actuator 40 is disposed in a direction perpendicular to the direction in which the transparent tube 21 is disposed, and has one end disposed between the current limiter 22 and the adsorbing material 30 and the other end extending outside the casing 10. The activating member 40 does not have affinity for the indicator 23, and prevents the indicator 23 from being adsorbed by the activating member 40 or accumulating on the activating member 40, and when the user pulls away from the activating member 40, the current limiter 22 is in direct contact with the adsorbing material 30, thereby activating the time temperature indicating device.
Alternatively, materials used to prepare the activation member 40 include, but are not limited to: PVC film, PET film, PP film and aluminum-plastic composite material.
The adsorbing material 30 is disposed on a side of the actuating member 40 away from the flow-limiting member 22, and the adsorbing material 30 is made of a porous material and has affinity with the indicator 23, so as to adsorb the liquid indicator 23.
Alternatively, the adsorbent material 30 material includes, but is not limited to, various papers, cotton, fiber cloth, sponge, clay, gypsum, glass fiber, filter paper, polymeric microporous materials, particle-filled polytetrafluoroethylene, and the like.
In the indication part 20 of the time temperature indication device, the first end 211 of the transparent tube 21 is provided with the current limiter 22, the indicator 23 and the sealing part 24 are arranged in the transparent tube 21, the sealing part 24 can move radially under the action of external force while the transparent tube 21 is closed, when the time temperature indication device is in an activated state, along with the consumption of the liquid indicator 23, the stress of the sealing part 24 is in an unbalanced state, the sealing part 24 moves to the indicator 23 side under the action of atmospheric pressure, and the movement process has an extrusion effect on the indicator 23, so that the indicator 23 in a solid-liquid mixed state is prevented from generating pores, and therefore, the section height of the indicator 23 can accurately indicate the accumulated time of abnormal temperature.
The following are specific examples.
Example 1
Referring to fig. 1 and 2, the present embodiment provides a time temperature indicating device, which includes a housing 10, an indicating portion 20, an adsorbing material 30 and an activating member 40.
The casing 10 includes an upper casing 11 and a lower casing 12, a groove is formed in the lower casing 12, and the upper casing 11 is covered on the lower casing 12.
The indication part 20 comprises a transparent tube 21, a current limiting piece 22, an indicator 23 and a sealing piece 24, wherein the current limiting piece 22 is fixedly arranged at a first end 211 of the transparent tube 21, the indicator 23 is arranged in the transparent tube 21 and is in contact with the current limiting piece 22, and the sealing piece 24 is arranged at one side of the indicator 23 far away from the current limiting piece 22. In this embodiment, the transparent tube 21 is made of glass with an inner diameter of 0.5mm, the flow restrictor 22 is made of nylon, the indicator 23 is fatty acid dissolved by red dye, the phase transition temperature is 8 ℃, and the closure 24 is a foam ball.
The adsorbing material 30 is disposed at a distance on a side of the restrictor 22 away from the indicator 23, and in this embodiment, the adsorbing material 30 is gypsum.
The activating member 40 is disposed in a direction perpendicular to the transparent tube 21, and has one end disposed between the adsorbing material 30 and the flow restricting member 22 and the other end extending outside the housing 10, and when the user pulls away the activating member 40, the flow restricting member 22 contacts with the adsorbing material 30.
In the indication part 20 of the time temperature indication device, the first end 211 of the transparent tube 21 is provided with the current limiter 22, the indicator 23 and the sealing part 24 are arranged in the transparent tube 21, the sealing part 24 can move radially under the action of external force while the transparent tube 21 is closed, when the time temperature indication device is in an activated state, along with the consumption of the liquid indicator 23, the stress of the sealing part 24 is in an unbalanced state, the sealing part 24 moves to the indicator 23 side under the action of atmospheric pressure, and the movement process has an extrusion effect on the indicator 23, so that the indicator 23 in a solid-liquid mixed state is prevented from generating pores, and therefore, the section height of the indicator 23 can accurately indicate the accumulated time of abnormal temperature.
Example 2
The time temperature indicating device provided in this embodiment is similar to the time temperature indicating device of embodiment 1, except that: the transparent tube is a PVC tube with an inner diameter of 2mm; (2) the sealing member 24 is a water absorbent resin; (3) The indicator 23 is fatty acid ester dissolved with blue pigment, and the phase transition temperature is 5 ℃; (4) the adsorbent material 30 is paper.
Example 3
Referring to fig. 3 and 4, the time temperature indicating device provided in this embodiment is similar to the time temperature indicating device of embodiment 2, except that: the transparent tube is a subcritical tube, and the inner diameter of the transparent tube is 3mm; (2) the closure member 24 is polystyrene foam; (3) The side of the sealing piece 24 far away from the indicator 23 is also provided with a drying inhibitor 25, and the drying inhibitor 25 is lithium-based grease.
The time temperature indicator can prevent the sealing member 24 from desiccating by providing the desiccating inhibitor 25. The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (9)
1. A time temperature indicating device, comprising:
the shell comprises an upper shell and a lower shell, and a groove is formed in the lower shell;
the indicating part is arranged in the groove and comprises a transparent pipe, a current limiting piece, an indicator and a sealing piece, wherein the transparent pipe is provided with a first end and a second end which are opposite to each other, the current limiting piece is fixedly arranged at the first end, the indicator is arranged in the transparent pipe and is in contact with the current limiting piece, and the sealing piece is arranged at one side, far away from the current limiting piece, of the indicator and is used for preventing the indicator from being in a porous state;
the adsorption materials are arranged at one side of the current limiting piece far away from the transparent tube at intervals; and
and the starting piece is arranged between the current limiting piece and the adsorption material in a extractable way, the starting piece is extracted, and the adsorption material is contacted with the current limiting piece.
2. The time temperature indicating device according to claim 1, wherein the sealing member is made of any one of hydrogel, water-absorbent resin, or polystyrene.
3. A time temperature indicating device as claimed in claim 2, wherein the closure member is provided with a conspicuous colour.
4. The time temperature indicating device of claim 1, wherein the housing comprises an upper housing and a lower housing.
5. The time temperature indicating device of claim 4, wherein a viewing window is provided on the upper housing.
6. The time temperature indicating device of claim 1, wherein a side of the closure member remote from the indicator is further provided with a dry-out preventing agent.
7. A time temperature indicating device according to any one of claims 1 to 6 wherein the flow restrictor is made of a porous material.
8. The time temperature indicating device of claim 7, wherein the porous material is selected from any one of nylon, gypsum, or fibrous materials.
9. The time temperature indicating device according to claim 1, wherein the transparent tube has an inner diameter of 0.5mm to 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223225035.4U CN218994559U (en) | 2022-12-02 | 2022-12-02 | Time temperature indicating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223225035.4U CN218994559U (en) | 2022-12-02 | 2022-12-02 | Time temperature indicating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218994559U true CN218994559U (en) | 2023-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223225035.4U Active CN218994559U (en) | 2022-12-02 | 2022-12-02 | Time temperature indicating device |
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| CN (1) | CN218994559U (en) |
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- 2022-12-02 CN CN202223225035.4U patent/CN218994559U/en active Active
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