Method for identifying temperature control abnormity in logistics cold-chain transportation process

Abstract

An identification method for temperature control abnormity in the logistics cold chain transportation process is characterized in that an identification device is included, the identification device comprises a packaging box body, a ventilation channel, supporting columns and box wall ventilation holes, the packaging box body is square, a cover body is arranged on the upper surface of the packaging box body, and the supporting columns are arranged at the four corners of the bottom of the packaging box body; ventilation channels are formed in the four corners of the top of the box body in a penetrating mode and penetrate through the supporting columns, sealing structures are arranged at the upper ends of the interiors of the ventilation channels, and the supporting columns can be inserted into the ventilation channels and control the sealing structures to achieve a communication state after being inserted in place; the box wall ventilation hole is formed in the inner side wall of the cavity of the packaging box body and communicated with one ventilation channel in the packaging box body, a column of packaging box bodies can be subjected to spot check at the top of the box body through a simple mechanical arm, and the technical problem that in the conventional detection process, a sensor possibly fails after being used for a long time is solved.

Description

Technical Field

[0001] This invention relates to a method for identifying temperature control anomalies during cold chain transportation, belonging to the field of temperature control anomaly detection during cold chain transportation. Background Technology

[0002] Cold chain transportation temperature detection utilizes multiple sensors in real-time transmission, continuous recording, and threshold alarms to achieve accurate, continuous, and traceable monitoring of the temperature inside refrigerated or frozen compartments, insulated boxes, and containers. To prevent damage or spoilage of transported goods, sampling frequencies are set according to product categories, with simultaneous data collection from multiple points. However, over-reliance on technical means, such as sensor malfunctions, can lead to false alarms, especially when there are many insulated boxes, increasing the likelihood of anomalies. Existing technologies lack simple and convenient sampling inspection methods for secondary inspections to enhance the identification of temperature control anomalies. Summary of the Invention

[0003] To address the problems of complex temperature re-inspection methods and the lack of sampling inspection measures for temperature anomaly identification in existing technologies, this invention provides a simple temperature control anomaly identification device and method to solve the above issues. The solution is as follows:

[0004] A device for identifying abnormal temperature control during cold chain transportation includes a packaging box, ventilation channels, support columns, and ventilation holes in the box wall. The packaging box is square, with a cover on its upper surface. Support columns are located at the four bottom corners of the packaging box, and ventilation channels are installed at the four top corners of the box. The ventilation channels pass through the support columns, and a sealing structure is provided at the upper end of the ventilation channels. The support columns can be inserted into the ventilation channels, and once inserted into place, the sealing structure is connected. Ventilation holes are located on the inner side wall of the packaging box cavity and are connected to one of the ventilation channels on the packaging box.

[0005] Furthermore, the sealing structure includes piston one, piston two, and a return spring. An expansion groove is provided around the venting channel. Piston one and piston two are slidably disposed in the expansion groove. A return spring is connected to the upper end of piston one, and the upper end of the return spring is connected to the upper wall of the expansion groove. Piston two is rotatably connected to the lower part of piston one. Piston one and piston two are provided with one or more through holes in their circumference. In the initial state, the through holes of piston one and piston two do not coincide. After the support column is inserted into the venting channel, the through holes on piston two and piston one coincide.

[0006] Furthermore, the outer end of piston one is provided with guide protrusion one, the outer end of piston two is provided with guide protrusion two, the expansion groove is provided with vertical guide groove one and spiral guide groove two, guide protrusion one is slidably disposed in vertical guide groove one, and guide protrusion two is slidably disposed in spiral guide groove two.

[0007] Furthermore, a contact point A is provided on the lower surface of the piston and a contact point B is provided on the upper surface of the piston. After the support column is inserted into place, contact point A and contact point B come into contact, thereby achieving electrical connection.

[0008] Furthermore, an electromagnet is provided on the upper surface of the expansion slot, and an iron block is provided on the piston corresponding to the part of the electromagnet. When contact point A and contact point B come into contact, the electromagnet is de-energized, and when contact point A and contact point B are no longer in contact, the electromagnet is energized.

[0009] Furthermore, control contact one and control contact two are provided on the upper and lower surfaces of the packaging box next to the ventilation channel. A switch valve is provided at the lower end of the ventilation channel. When control contact one and control contact two are in contact, the corresponding switch valve next to control contact two is opened.

[0010] Furthermore, a cushioning support layer is laid at the bottom of the packaging box 1, an intermediate air layer is provided in the middle of the cushioning support layer, the intermediate air layer is connected to the ventilation holes of the box wall, and multiple connecting through holes are provided on the upper part of the cushioning support layer, with multiple detection limit tubes connected to the connecting through holes.

[0011] Furthermore, the intermediate air layer is also equipped with buffer support columns, which connect the upper and lower layers of the buffer support layer.

[0012] Furthermore, the detection limiting tube is a hollow tube, with the middle and lower parts made of metal and the upper part being a thin temperature exchange layer.

[0013] Furthermore, the present invention also includes a method for identifying temperature control abnormalities during cold chain transportation, using a device for identifying temperature control abnormalities during cold chain transportation, and including the following specific steps: (1) inserting a support column into the ventilation channel to stack the packaging boxes, and counting the numbers of the packaging boxes that exchange internal gas temperature with the ventilation channel; (2) inserting a temperature detector into the ventilation channel, and after the temperature detector is inserted into place, opening the sealing structure to achieve sampling detection of the gas temperature of the ventilation channel. If the detection is qualified, it means that the temperature of the items in the packaging box connected to the ventilation channel is not abnormal. If the detection is unqualified, it means that the temperature of the items in the packaging box is abnormal.

[0014] The beneficial effects of this invention are:

[0015] 1. The packaging box of the present invention is provided with ventilation channels on all four sides. The interior is connected to a ventilation channel through ventilation holes in the box wall. Other ventilation channels can transport gas vertically. Thus, a simple robotic arm can be used to randomly inspect a row of packaging boxes from the top of the box. This solves the technical problem that sensors may fail after long-term use in conventional testing. The sampling inspection method adopted in this application is a supplement to the existing testing technology.

[0016] 2. Based on the stacking requirements, this invention sets up a unique sealing structure and its opening method to realize the natural opening of the sealing structure during the stacking of packaging boxes without manual operation. At the same time, it sets up a contact structure to control the electromagnet and the switch valve, which can be automatically controlled after being connected in place, ensuring the opening of the channel or the disconnection and opening of the electromagnet's restoring force, thus facilitating disassembly and assembly.

[0017] 3. The present invention is equipped with a detection limiting tube, which, together with the internal porous structure, can be sealed by a sealing plug or other sealing structure when the detection limiting tube is not in use. This allows for free adjustment of the position of the detection limiting tube, making it easier to perform clamping and detection. At the same time, the buffer support layer can realize airflow conduction and buffer support. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the packaging box of the present invention.

[0019] Figure 2 This is a schematic diagram of the sealing structure of the packaging box of the present invention.

[0020] Figure 3 This is a schematic diagram of the through-hole structure of piston one and piston two in the packaging box of the present invention.

[0021] Figure 4 This is a schematic diagram of the buffer support layer of the present invention. Specific implementation methods

[0022] See Figure 1-4 This invention relates to a device for identifying abnormal temperature control during cold chain transportation, comprising a packaging box 1, ventilation channels 2, support columns 3, and ventilation holes 4 in the box wall. The packaging box 1 is square, with a cover on its upper surface. Support columns 2 are located at the four bottom corners of the packaging box 1, and ventilation channels 2 are installed at the four top corners of the box 1, penetrating the support columns 2. A sealing structure is provided at the upper end of the ventilation channels 2. The support columns 3 can be inserted into the ventilation channels 2, and once fully inserted, the sealing structure is connected. The ventilation holes 4 are located on the inner side wall of the packaging box 1 and are connected to the inner wall of the packaging box 1. One of the ventilation channels 2 is connected. With the above structure, each packaging box can export its internal temperature through a ventilation channel 2. At the same time, three other channels that are directly connected vertically can export the temperature of the lower packaging box. Thus, when the packaging boxes are rotated and stacked, the lower packaging box 1 can also export the temperature to the top through its own ventilation channel 2 and the direct ventilation channel of the upper layer. At the top, a simple robotic arm can be used to drive a temperature detector to detect the temperature in the ventilation channel 2 and can also directly lock the packaging box with a problem.

[0023] Furthermore, the sealing structure includes piston 5, piston 6, and a return spring. An expansion groove 8 is provided around the venting channel 2. Piston 5 and piston 6 are slidably disposed in the expansion groove 8. A return spring is connected to the upper end of piston 5, and the upper end of the return spring is connected to the upper wall of the expansion groove 8. Piston 6 is rotatably connected to the lower part of piston 5. Piston 5 and piston 6 are provided with one or more through holes in their circumference. In the initial state, the through holes of piston 5 and piston 6 do not coincide. After the support column 3 is inserted into the venting channel 2, the through holes on piston 6 and piston 5 coincide.

[0024] Furthermore, piston 5 has a guide protrusion 7 at its outer end, piston 6 has a guide protrusion 8 at its outer end, and the expansion groove 8 has a vertical guide groove and a spiral guide groove. Guide protrusion 7 is slidably disposed in the vertical guide groove, and guide protrusion 8 is slidably disposed in the spiral guide groove. Working process: Support column 3 presses piston 5, and the vertical guide groove and spiral guide groove cause piston 5 to slide vertically. Piston 6 rotates under the action of spiral guide groove, ensuring that after support column 3 is fully inserted, the through holes on piston 5 and piston 6 are aligned, thus enabling gas flow.

[0025] Furthermore, the lower surface of piston 5 is provided with contact point A, and the upper surface of piston 6 is provided with contact point B. After the support column 3 is inserted into place, contact point A and contact point B come into contact, realizing electrical connection and thus further realizing signal control.

[0026] Furthermore, an electromagnet is provided on the upper surface of the expansion slot 8, and an iron block or a ferromagnetic body that can be attracted by the electromagnet is provided on the part of piston 5 corresponding to the electromagnet. When contact point A and contact point B come into contact, the electromagnet is de-energized. When contact point A and contact point B are separated, the electromagnet is energized. Thus, when the support column 3 is separated from the ventilation channel 2, the electromagnet regains its attractive force, which makes it easy for piston 5 and piston 6 to return to their original state.

[0027] Furthermore, control contact one and control contact two are provided on the upper and lower surfaces of the packaging box 1 next to the ventilation channel 2. A switch valve 21 is provided at the lower end of the ventilation channel 2. When control contact one and control contact two are in contact, the corresponding switch valve 21 next to control contact two is opened to allow ventilation. When the switch valve 21 is not opened, it is sealed to prevent dust from entering.

[0028] Furthermore, a cushioning support layer 10 is laid at the bottom of the packaging box 1, and an intermediate air layer 11 is provided in the middle of the cushioning support layer 10. The intermediate air layer is connected to the ventilation holes 4 in the box wall. Multiple connecting through holes are provided on the upper part of the cushioning support layer, and multiple detection limiting tubes 12 are connected to the connecting through holes. The temperature inside the packaging box is transmitted to the intermediate air layer through the detection limiting tubes 12, and then further transmitted to the ventilation channel 2 through the ventilation holes 4 in the box wall.

[0029] Furthermore, the intermediate air layer 11 is also provided with a buffer support column, which connects the upper and lower layers of the buffer support layer 10. The buffer support column can be made of rubber or other materials, which can be used to achieve airflow discharge while also achieving buffering and shock absorption.

[0030] Furthermore, the detection limiting tube 12 is a hollow tube with metal material in the middle and lower parts and a thin temperature exchange layer in the upper part. Since the upper part of the buffer support layer is provided with multiple connecting through holes, while ensuring that the detection limiting tube 12 can clamp and limit the item to fix it, the thin temperature exchange layer in the upper part can obtain the temperature of the item when in contact, thereby achieving faster temperature acquisition.

[0031] Furthermore, the connecting through hole is sealed with a sealing piston or an elastic sealing flap 14 is provided at the lower end of the connecting through hole. The detection limit tube 12 can open the elastic sealing flap 14 by passing through the connecting through hole appropriately, thereby achieving a sealed state in the connecting through hole when the detection limit tube 12 is not inserted.

[0032] Furthermore, the present invention also includes a method for identifying abnormal temperature control during cold chain transportation, using a device for identifying abnormal temperature control during cold chain transportation, and including the following specific steps: (1) inserting the support column 3 into the ventilation channel 2 to stack the packaging box 1, and counting the number of the packaging box 1 that exchanges internal gas temperature with the ventilation channel 2; (2) inserting a temperature detector into the ventilation channel 2, and after the temperature detector is inserted into place, opening the sealing structure to realize the sampling detection of the gas temperature of the ventilation channel 2. If the detection is qualified, it means that the temperature of the items in the packaging box 1 connected to the ventilation channel 2 is not abnormal. If the detection is unqualified, it means that the temperature of the items in the packaging box 1 is abnormal.

Claims

1. A device for identifying abnormal temperature control during cold chain transportation, characterized in that: in, The package includes a box body, ventilation channels, support columns, and ventilation holes in the box walls. The box body is square, with a cover on the upper surface. Support columns are located at the four bottom corners of the box body, and ventilation channels are installed at the four top corners of the box body. The ventilation channels pass through the support columns, and a sealing structure is installed at the upper end of the ventilation channels. The support columns can be inserted into the ventilation channels, and once inserted into place, the sealing structure is controlled to achieve a connected state. The ventilation holes in the box walls are located on the inner side wall of the box body and are connected to one of the ventilation channels on the box body.

2. The temperature control anomaly identification device during cold chain transportation according to claim 1, characterized in that: The sealing structure includes piston one, piston two, and a return spring. An expansion groove is provided around the venting channel. Piston one and piston two are slidably disposed in the expansion groove. The upper end of piston one is connected to the return spring, and the upper end of the return spring is connected to the upper wall of the expansion groove. Piston two is rotatably connected to the lower part of piston one. Piston one and piston two are provided with one or more through holes in their circumference. In the initial state, the through holes of piston one and piston two do not coincide. After the support column is inserted into the venting channel, the through holes on piston two and piston one coincide.

3. The temperature control anomaly identification device during cold chain transportation according to claim 2, characterized in that: Piston 1 has a guide protrusion 1 at its outer end, piston 2 has a guide protrusion 2 at its outer end, and the expansion groove has a vertical guide groove 1 and a spiral guide groove 2. The guide protrusion 1 is slidably disposed in the vertical guide groove 1, and the guide protrusion 2 is slidably disposed in the spiral guide groove 2.

4. The temperature control anomaly identification device during cold chain transportation according to claim 2, characterized in that: The piston has a contact point A on its lower surface and a contact point B on its upper surface. After the support column is inserted into place, contact point A and contact point B make contact and achieve electrical connection.

5. The temperature control anomaly identification device during cold chain transportation according to claim 2, characterized in that: An electromagnet is installed on the upper surface of the expansion slot, and an iron block is installed on the piston corresponding to the electromagnet. When contact point A and contact point B come into contact, the electromagnet is de-energized. When contact point A and contact point B are no longer in contact, the electromagnet is energized.

6. The temperature control anomaly identification device during cold chain transportation according to claim 1, characterized in that: Control contact one and control contact two are provided on the upper and lower surfaces of the packaging box next to the ventilation channel. A switch valve is provided at the lower end of the ventilation channel. When control contact one and control contact two are in contact, the corresponding switch valve next to control contact two is opened.

7. The temperature control anomaly identification device during cold chain transportation according to claim 1, characterized in that: The bottom of the packaging box is covered with a cushioning support layer, and an intermediate air layer is set in the middle of the cushioning support layer. The intermediate air layer is connected to the ventilation holes of the box wall. Multiple connecting through holes are set on the upper part of the cushioning support layer, and multiple detection limit tubes are connected to the connecting through holes.

8. The temperature control anomaly identification device during cold chain transportation according to claim 7, characterized in that: The intermediate air layer is also equipped with buffer support columns, which connect the upper and lower layers of the buffer support layer.

9. The temperature control anomaly identification device during cold chain transportation according to claim 8, characterized in that: The detection limit tube is a hollow tube, with the middle and lower parts made of metal and the upper part being a thin film temperature exchange layer.

10. A method for identifying abnormal temperature control during cold chain transportation, using the device for identifying abnormal temperature control during cold chain transportation as described in claims 1-9, and including the following specific steps: (1) inserting a support column into the ventilation channel to stack the packaging boxes, and counting the numbers of the packaging boxes that exchange internal gas temperature with the ventilation channel; (2) inserting a temperature detector into the ventilation channel, and after inserting the temperature detector into place, opening the sealing structure to achieve sampling detection of the gas temperature of the ventilation channel. If the detection is qualified, it means that the temperature of the items in the packaging box connected to the ventilation channel is not abnormal. If the detection is unqualified, it means that the temperature of the items in the packaging box is abnormal.

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