A data collector used in cold chain equipment monitoring system

Abstract

The present invention discloses a data collector for use in a cold chain equipment monitoring system, comprising a data collector body and a mounting plate, wherein the data collector body is mounted on the front of the mounting plate, a wall is provided on the back of the mounting plate, the mounting plate is threadedly connected to the wall via a plurality of bolts, a shielding mechanism for protecting the data collector body is provided on the top of the mounting plate, and a cleaning mechanism for cleaning the front screen of the data collector body is provided on the bottom of the mounting plate. In this invention, the cleaning mechanism is provided to control the two sliders to move in the slide groove, driving the two rotating rods and the soft pads of the moving rods abutting against the data collector body to move together, thereby automatically cleaning the dust or other debris on the front of the data collector body. The operation is relatively convenient, and there is no need to manually wipe and clean the front of the data collector body with a rag, thereby reducing manual labor and facilitating the use of the data collector body.

Description

Technical Field

[0001] The present invention relates to the technical field of cold chain equipment monitoring, and in particular to a data collector used in a cold chain equipment monitoring system. Background Art

[0002] In cold chain logistics, temperature monitoring is a critical component in ensuring product quality and safety. A cold chain equipment monitoring system is a device and software system used to monitor and record the cold chain's ambient temperature in real time. It helps business managers fully understand temperature fluctuations during cold chain transportation and take timely measures to prevent damage or spoilage. A cold chain equipment monitoring system primarily includes sensors, data collectors, data storage devices, and monitoring software. The data collector is responsible for receiving temperature data from the sensor and storing or transmitting the data to the data storage device. The data collector should have stable communication capabilities, supporting both wireless and wired communication methods to accommodate the needs of different scenarios.

[0003] The data collector in the existing technology needs to be installed in the cold chain warehouse when in use to collect the cold chain environmental temperature information in real time. However, since the data collector is exposed to the outside when in use, dust and fingerprints are often attached to its surface, which greatly affects the user's perception. When cleaning the dust and fingerprints on the surface of the data collector, it is usually necessary to wipe it manually with a rag. However, manual cleaning increases the labor intensity, is inconvenient to operate, and has low cleaning efficiency, which affects the use of the data collector. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a data collector for use in a cold chain equipment monitoring system.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A data collector for use in a cold chain equipment monitoring system includes a data collector body and a mounting plate. The data collector body is installed on the front of the mounting plate. A wall is provided on the back of the mounting plate. The mounting plate is threadedly connected to the wall via multiple bolts. A shielding mechanism for protecting the data collector body is provided on the top of the mounting plate. A cleaning mechanism for cleaning the front screen of the data collector body is provided on the bottom of the mounting plate.

[0007] Optionally, a plurality of connecting rods are installed on the outer wall of the data collector body close to the mounting plate, and rubber pads are bonded to the surfaces of the plurality of connecting rods. A plurality of connecting holes that are compatible with the connecting rods are opened on the side of the mounting plate close to the data collector body.

[0008] Optionally, two mounting holes are symmetrically provided at the bottom of the data collector body, a guide block is installed at the bottom of the data collector body between the two mounting holes, a cable is inserted into one of the mounting holes, and a probe is installed at the end of the cable away from the data collector body.

[0009] Optionally, the cleaning mechanism includes a groove formed at the bottom end of the mounting plate, and a slide groove communicating with the top surface of the groove is formed inside the mounting plate, and two sliders are slidably installed inside the slide groove.

[0010] Optionally, the bottom ends of the two sliding blocks are connected to a moving block via a first electric telescopic rod, a second electric telescopic rod is installed inside the two moving blocks, and a mounting seat is installed at the telescopic ends of the two second electric telescopic rods.

[0011] Optionally, sealing gaskets are installed on the top ends of the two moving blocks, and the two sealing gaskets can respectively seal the two mounting holes.

[0012] Optionally, a rotating rod is rotatably installed inside the two mounting seats, a third electric telescopic rod is installed inside the two rotating rods, a moving rod is installed at the telescopic ends of the two third electric telescopic rods, and a soft pad is installed on the outer wall of the two rotating rods and the moving rod on one side close to the data collector body.

[0013] Optionally, the two moving rods are hinged with a connecting plate at one end away from the rotating rod, and circular holes are opened inside the two connecting plates. Two splints are symmetrically arranged inside the two circular holes, and screws are installed on the outer walls of the two splints on the side away from each other. Insert blocks are installed on the ends of the two connecting plates away from the hinged parts.

[0014] Optionally, the shielding mechanism includes a rectangular groove opened on the top of the mounting plate, a winding roller is rotatably installed inside the rectangular groove, and a plastic film is rolled up on the surface of the winding roller.

[0015] Optionally, a magnetic block is installed at one end of the plastic film away from the winding roller, and a slot adapted to fit the two inserting blocks is provided inside the magnetic block.

[0016] The beneficial effects of the present invention are:

[0017] 1. In this invention, the cleaning mechanism is provided to control the two sliders to move in the slide groove, driving the two rotating rods and the soft pads that the moving rods abut against the data collector body to move together, so that the dust or other debris on the front of the data collector body can be automatically cleaned. The operation is relatively convenient, and there is no need to manually wipe and clean the front of the data collector body with a rag, which reduces manual labor and facilitates the use of the data collector body.

[0018] 2. In this invention, the two rotating rods and the moving rod located on the front of the data collector body are rotated upward to a vertical state, so that the outer walls of the two rotating rods and the moving rods with the soft pads are in contact with the front of the data collector body, which has an auxiliary fixing effect on the data collector body installed on the front of the mounting plate, thereby improving the stability of the data collector body during use; and the sealing gaskets arranged on the top of the two moving blocks can respectively block the two unused mounting holes to prevent external debris from entering the interior of the mounting holes.

[0019] 3. In this invention, if the data collector body needs an external cable when in use and a probe is used for data collection, one of the rotating rods can be controlled to drive the moving rod to rotate downward to a horizontal state, and then the connecting plate can be controlled to rotate upward to a vertical state, and the probe can be placed inside the circular hole. The two screws are rotated to drive the two clamps to clamp and fix the probe, and finally the telescopic end of the third electric telescopic rod inside the rotating rod and the telescopic end of the second electric telescopic rod inside the moving block are extended to drive the moving rod, the connecting plate and the probe to move together in a direction away from the data collector body, so as to facilitate the collection of data away from the data collector body, without the need for manual hand-held collection, thereby improving the efficiency of data collection.

[0020] 4. In this invention, by providing a shielding mechanism, when water leakage occurs above the data collector body, the water dripping downward from the top can be shielded by the unfolded plastic film, thereby protecting the safety of the data collector body; and if there is a lot of dust in the use area of ​​the data collector body or the data collector body is not used for a period of time, the plastic film can be vertically unfolded and fixed downward on the front of the data collector body to cover the front of the data collector body, thereby preventing external dust from accumulating on the surface of the data collector body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of a data collector used in a cold chain equipment monitoring system proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the structure in which the mounting plate is separated from the wall in the present invention;

[0024] Figure 3 This is a schematic diagram of the structure in which the shielding mechanism and the cleaning mechanism are separated from the mounting plate in the present invention;

[0025] Figure 4 It is a structural schematic diagram of the cleaning mechanism of the present invention;

[0026] Figure 5Schematic diagram of the structure of the shielding mechanism in the present invention;

[0027] Figure 6 This is a structural diagram of the connection between the data collector body and the mounting block in the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the shielding mechanism of the present invention when in use;

[0029] Figure 8 This is a structural diagram of the cleaning mechanism of the present invention driving the data collector body to separate from the mounting plate;

[0030] Figure 9 This is a schematic diagram of the structure of the cleaning mechanism in the present invention when used in conjunction with the cable.

[0031] In the figure: 1. Wall; 2. Mounting plate; 3. Data collector body; 4. Rotating rod; 5. Bolt; 6. Rectangular groove; 7. Guide block; 8. Mounting hole; 9. Connecting hole; 10. Connecting rod; 11. Groove; 12. Winding roller; 13. Slide; 14. Slider; 15. First electric telescopic rod; 16. Moving block; 17. Moving rod; 18. Connecting plate; 19. Sealing gasket; 20. Second electric telescopic rod; 21. Mounting seat; 22. Third electric telescopic rod; 23. Cushion; 24. Round hole; 25. Clamp; 26. Screw; 27. Plastic film; 28. Magnetic block; 29. ​​Slot; 30. Cable; 31. Probe. DETAILED DESCRIPTION

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] Reference Figures 1-9 A data collector for use in a cold chain equipment monitoring system includes a data collector body 3 and a mounting plate 2. The data collector body 3 is installed on the front of the mounting plate 2. A wall 1 is provided on the back of the mounting plate 2. The mounting plate 2 is threadedly connected to the wall 1 through multiple bolts 5. A shielding mechanism for protecting the data collector body 3 is provided on the top of the mounting plate 2, and a cleaning mechanism for cleaning the front screen of the data collector body 3 is provided at the bottom of the mounting plate 2.

[0034] As a technical optimization solution of the present invention, a plurality of connecting rods 10 are installed on the outer wall of the side of the data collector body 3 close to the mounting plate 2. The surfaces of the plurality of connecting rods 10 are bonded with rubber pads. A plurality of connecting holes 9 compatible with the connecting rods 10 are opened on the side of the mounting plate 2 close to the data collector body 3. The data collector body 3 can be quickly installed and removed by plugging the plurality of connecting rods 10 installed on the back into the plurality of connecting holes 9 provided on the front of the mounting plate 2. Since the surfaces of the plurality of connecting rods 10 are provided with rubber pads, after the connecting rods 10 are inserted into the interior of the connecting holes 9, the rubber pads can improve the connection effect between the connecting rods 10 and the connecting holes 9, making the installation of the data collector body 3 more stable.

[0035] As a technical optimization solution of the present invention, two mounting holes 8 are symmetrically defined at the bottom of the data collector body 3. A guide block 7 is mounted on the bottom of the data collector body 3, located between the two mounting holes 8. A cable 30 is inserted into one of the mounting holes 8, and a probe 31 is mounted on the end of the cable 30 away from the data collector body 3. When the data collector body 3 is in use, if an external probe 31 is required for data acquisition, the corresponding cable 30 can be inserted into the corresponding mounting hole 8 for use. In actual use, the cable 30 can be replaced with different lengths according to actual usage requirements.

[0036] As a technical optimization solution of the present invention, the cleaning mechanism includes a groove 11 defined at the bottom end of the mounting plate 2. A chute 13 is also defined within the mounting plate 2, communicating with the top surface of the groove 11. Two sliders 14 are slidably mounted within the chute 13. Two linear motors are pre-installed within the chute 13 to drive the two sliders 14 to move back and forth within the chute 13.

[0037] As a technical optimization solution of the present invention, the bottom ends of the two sliders 14 are connected to the moving block 16 through the first electric telescopic rod 15, the second electric telescopic rod 20 is installed inside the two moving blocks 16, and the telescopic ends of the two second electric telescopic rods 20 are installed with mounting seats 21.

[0038] As a technical optimization solution of the present invention, sealing gaskets 19 are installed on the top of each of the two movable blocks 16. The two sealing gaskets 19 can respectively block the two mounting holes 8. The two sliders 14 move within the slide 13, driving the two movable blocks 16 to move directly below the two mounting holes 8. The sealing gaskets 19 installed on the top of the two movable blocks 16 can respectively block the two unused mounting holes 8, preventing foreign matter from entering the interior of the mounting holes 8.

[0039] As a technical optimization solution of the present invention, a rotating rod 4 is rotatably mounted inside the two mounting seats 21, a third electric telescopic rod 22 is mounted inside the two rotating rods 4, a mobile rod 17 is mounted on the telescopic end of the two third electric telescopic rods 22, and a soft pad 23 is mounted on the outer wall of the two rotating rods 4 and the mobile rod 17 on the side close to the data collector body 3. During actual use, the rotating shaft between the rotating rod 4 and the mounting seat 21 can be an electric rotating shaft, which is driven by an external drive motor to drive the rotating rod 4 to rotate; when the rotating rod 4 and the mobile rod 17 are rotated to a vertical state, the soft pad 23 provided on the outer wall on the same side of the rotating rod 4 and the mobile rod 17 is in contact with the front of the data collector body 3. With the movement of the slider 14, the soft pad 23 can be driven to clean dust and other debris on the front of the data collector body 3.

[0040] As a technical optimization solution of the present invention, the ends of the two movable rods 17 facing away from the rotating rod 4 are hingedly connected to a connecting plate 18. Each connecting plate 18 has a circular hole 24 formed therein, and two clamping plates 25 are symmetrically positioned within each circular hole 24. Screws 26 are mounted on the outer walls of the two clamping plates 25 facing away from each other. An insert is mounted on the ends of the two connecting plates 18 facing away from the hinged portion. In actual use, the hinge axis connecting the connecting plates 18 and the movable rods 17 can be an electric shaft, driven by an external drive device, thereby driving the connecting plates 18 to rotate.

[0041] As a technical optimization solution of the present invention, the shielding mechanism includes a rectangular groove 6 defined in the top of the mounting plate 2. A winding roller 12 is rotatably mounted within the groove 6, and a plastic film 27 is wound on the surface of the winding roller 12. When unfolded, the plastic film 27 is positioned on top of the data collector body 3 to block dripping rainwater or other debris, thereby preventing the safety of the data collector body 3 from being compromised during use.

[0042] As a technical optimization solution of the present invention, a magnetic block 28 is mounted on the end of the plastic film 27 away from the winding roller 12. The magnetic block 28 has slots 29 formed within it, which are adapted to fit the two inserts. The magnetic block 28 is configured so that after the plastic film 27 is wound onto the surface of the winding roller 12, the magnetic block 28 is magnetically attracted to the front surface of the mounting plate 2, so that the side of the magnetic block 28 with the slots 29 is always located at the front.

[0043] In the present invention, when the user uses the device, after the mounting plate 2 is mounted on the front of the wall 1 through a plurality of bolts 5, refer to Figure 6As shown, the two rotating rods 4 are controlled to drive the moving rod 17 to rotate downward to a horizontal state, and the two sliders 14 are controlled to move a certain distance in the direction of approaching each other in the slide groove 13, so that the spacing between the two rotating rods 4 and the moving rod 17 is adapted to the width of the guide block 7 at the bottom of the data collector body 3. After the data collector body 3 is placed on the top of the two rotating rods 4, the guide block 7 is located in the gap between the two rotating rods 4, and the data collector body 3 is pushed horizontally toward the mounting plate 2, so that multiple connecting rods 10 can be simultaneously and accurately inserted into the inside of the multiple connecting holes 9, thereby realizing accurate and fast installation of the data collector body 3.

[0044] After the data collector body 3 is mounted on the front of the mounting plate 2, refer to Figure 1 As shown, the two rotating rods 4 and the moving rod 17 are controlled to rotate upward to a vertical state, so that the outer wall of the two rotating rods 4 and the moving rod 17 with the soft pad 23 is in contact with the front of the data collector body 3, which has an auxiliary fixing effect on the data collector body 3 installed on the front of the mounting plate 2, thereby improving the stability of the data collector body 3 when in use.

[0045] When the data collector body 3 is in use, dust or other debris will inevitably adhere to the front of the data collector body 3, and the dust or other debris on its surface needs to be cleaned regularly. When the front of the data collector body 3 needs to be cleaned, the two sliders 14 can be controlled to move toward or away from each other in the slide groove 13, driving the two rotating rods 4 and the moving rod 17 to move together with the soft pad 23 abutting the data collector body 3, so that the dust or other debris on the front of the data collector body 3 can be automatically cleaned horizontally; if the screen position on the front of the data collector body 3 is more seriously dirty, the telescopic end of the third electric telescopic rod 22 inside the two rotating rods 4 can be controlled to move up and down repeatedly, driving the two moving rods 17 to move up and down together with the soft pad 23 abutting the screen position, and the dust and other debris attached to the screen position can be cleaned vertically again, thereby improving the effect of cleaning the dirt on the screen position.

[0046] If the data collector body 3 needs to be connected to an external cable 30 when in use, and a probe 31 is used for data collection, in order to avoid damage and contamination caused by placing the probe 31 directly on the ground, and the inconvenience of manually holding the probe 31, refer to Figure 9As shown, one of the rotating rods 4 can be controlled to drive the moving rod 17 to rotate downward to a horizontal state, and then the telescopic end of the first electric telescopic rod 15 can be controlled to extend downward for a distance, so that the connecting end of the cable 30 can be inserted into the inside of the mounting hole 8, and then the connecting plate 18 is controlled to rotate upward to a vertical state, and the probe 31 is placed inside the circular hole 24, and the two screws 26 are rotated to drive the two clamping plates 25 to move toward each other, clamping and fixing the probe 31, and finally, the telescopic end of the third electric telescopic rod 22 inside the rotating rod 4 and the telescopic end of the second electric telescopic rod 20 inside the moving block 16 are extended, driving the moving rod 17, the connecting plate 18 and the probe 31 to move together in a direction away from the data collector body 3, so as to facilitate the collection of data away from the data collector body 3, without the need for manual hand-held collection, thereby improving the efficiency of data collection.

[0047] If water seepage occurs on the surface of the wall 1 when the data collector body 3 is in use, the water will flow down along the surface of the wall 1 to the surface of the mounting plate 2, and then flow to the surface of the data collector body 3, affecting the use of the data collector body 3. In order to ensure that the use of the data collector body 3 is not affected before repairing the water seepage area, refer to Figure 1 and Figure 8 As shown, the data collector body 3 is in normal use. Figure 1 In the state shown, the telescopic ends of the third electric telescopic rods 22 inside the two rotating rods 4 can be controlled to drive the moving rod 17 to extend upward to the top of the data collector body 3, and then the two connecting plates 18 can be controlled to rotate 180 degrees at the top of the moving rod 17 toward the direction of the data collector body 3. Finally, the telescopic ends of the third electric telescopic rods 22 can be controlled to retract downward, driving the two connecting plates 18 to move downward and abut against the top of the data collector body 3, and the telescopic ends of the second electric telescopic rods 20 inside the two moving blocks 16 can be controlled to extend, and cooperate with the retraction of the telescopic ends of the third electric telescopic rods 22 to clamp and fix the upper and lower parts of the data collector body 3, and drive the data collector body 3 to move in the direction away from the mounting plate 2, so that the data collector body 3 can be away from the water seepage part of the wall 1, ensuring the safety of the use of the data collector body 3.

[0048] If there is water leakage on the top of the data collector body 3 when it is in use, causing water to drip down to the surface of the data collector body 3, the staff cannot rush to repair the leaking part in time and disassemble the data collector body 3. Figure 1 and Figure 7As shown, the two sliders 14 are controlled to move away from each other in the inside of the chute 13 to the two ends of the mounting plate 2, and then the two connecting plates 18 are controlled to rotate 180 degrees in the direction close to the data collector body 3, and the telescopic ends of the third electric telescopic rods 22 in the two rotating rods 4 are controlled to move upward, driving the two connecting plates 18 to move upward to a position flush with the magnetic block 28, and finally controlling the two sliders 14 to move towards each other in the chute 13, driving the two connecting plates 18 away from the hinged portion of the card block to follow the trend and The magnetic block 28 is plugged into the slot opened at one end away from the winding roller 12, and then the telescopic ends of the second electric telescopic rods 20 inside the two moving blocks 16 are controlled to extend, driving the two rotating rods 4, the moving rod 17 and the connecting plate 18 to move together in the direction away from the data collector body 3, thereby pulling the magnetic block 28 connected to the connecting plate 18 to move together, so that the plastic film 27 is in an unfolded state on the top of the data collector body 3, thereby being able to block water dripping downward from above and protect the safety of the data collector body 3.

[0049] If there is a lot of dust in the use area of ​​the data collector body 3 or the data collector body 3 is not used for a period of time, the two rotating rods 4 can be controlled to rotate downward 180 degrees to a vertical state, and then the two connecting plates 18 can be controlled to rotate 180 degrees to the front of the moving rod 17, and then the magnetic block 28 is manually pulled to connect with the card blocks of the two connecting plates 18, driving the plastic film 27 to be vertically unfolded and fixed downward on the front of the data collector body 3, covering the front of the data collector body 3, thereby preventing external dust from accumulating on the surface of the data collector body 3; and when the plastic film 27 is covered on the front of the data collector body 3 for use, the telescopic end of the third electric telescopic rod 22 inside the two rotating rods 4 can be controlled to repeatedly extend and retract, driving the connecting plate 18 to pull the magnetic block 28 and the plastic film 27 to shake together, so as to facilitate shaking off the dust blocked on the surface of the plastic film 27, and avoid a large amount of dust accumulation on the surface of the plastic film 27, which causes the subsequent winding roller 12 to wind the plastic film 27 unsmoothly.

[0050] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A data collector for use in a cold chain equipment monitoring system, comprising a data collector body (3) and a mounting plate (2), characterized in that: The data collector body (3) is mounted on the front of the mounting plate (2), a wall (1) is provided on the back of the mounting plate (2), the mounting plate (2) is threadedly connected to the wall (1) via a plurality of bolts (5), a shielding mechanism for protecting the data collector body (3) is provided on the top of the mounting plate (2), and a cleaning mechanism for cleaning the front screen of the data collector body (3) is provided on the bottom of the mounting plate (2); The cleaning mechanism comprises a groove (11) provided at the bottom end of the mounting plate (2), a chute (13) in communication with the top surface of the groove (11) provided inside the mounting plate (2), and two sliders (14) slidably installed inside the chute (13); The bottom ends of the two sliders (14) are connected to a moving block (16) via a first electric telescopic rod (15), a second electric telescopic rod (20) is installed inside the two moving blocks (16), and a mounting seat (21) is installed at the telescopic ends of the two second electric telescopic rods (20); The top ends of the two moving blocks (16) are both installed with sealing pads (19), the interiors of the two mounting seats (21) are both rotatably installed with rotating rods (4), the interiors of the two rotating rods (4) are both installed with third electric telescopic rods (22), the telescopic ends of the two third electric telescopic rods (22) are both installed with moving rods (17), and the outer walls of the two rotating rods (4) and the moving rod (17) on one side close to the data collector body (3) are both installed with soft pads (23); The ends of the two moving rods (17) away from the rotating rod (4) are hingedly connected to a connecting plate (18), the interiors of the two connecting plates (18) are provided with a circular hole (24), the interiors of the two circular holes (24) are symmetrically provided with two clamping plates (25), the outer walls of the two clamping plates (25) away from each other are both installed with a screw (26), and the ends of the two connecting plates (18) away from the hinged portion are both installed with an insert.

2. A data collector for use in a cold chain equipment monitoring system according to claim 1, characterized in that: A plurality of connecting rods (10) are installed on the outer wall of the data collector body (3) close to the mounting plate (2), and rubber pads are bonded to the surfaces of the plurality of connecting rods (10). A plurality of connecting holes (9) adapted to the connecting rods (10) are opened on the side of the mounting plate (2) close to the data collector body (3).

3. The data collector for cold chain equipment monitoring system according to claim 1, characterized in that: Two mounting holes (8) are symmetrically provided at the bottom of the data collector body (3), and two sealing gaskets (19) can respectively block the two mounting holes (8). A guide block (7) is installed between the two mounting holes (8) at the bottom of the data collector body (3), and a cable (30) is inserted into one of the mounting holes (8), and a probe (31) is installed at one end of the cable (30) away from the data collector body (3).

4. A data collector for use in a cold chain equipment monitoring system according to claim 1, characterized in that: The shielding mechanism comprises a rectangular groove (6) opened on the top of the mounting plate (2), a winding roller (12) is rotatably mounted inside the rectangular groove (6), and a plastic film (27) is wound on the surface of the winding roller (12).

5. A data collector for use in a cold chain equipment monitoring system according to claim 4, characterized in that: A magnetic block (28) is installed at one end of the plastic film (27) away from the winding roller (12), and a slot (29) adapted to the two plug-in blocks is provided inside the magnetic block (28).

Images