A cold chain logistics temperature control container door sealing structure
By placing the sealing layer and sealing strip inside the enclosure and utilizing the locking rod and locking groove structure, the problem of sealing strip aging due to ultraviolet radiation is solved, thereby extending the lifespan of the sealing layer and enhancing the stability of the enclosure door.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUOYUAN (GUANGDONG) LOGISTICS CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-21
AI Technical Summary
The sealing strips of existing temperature-controlled containers are exposed to ultraviolet radiation, causing them to age and affecting their service life.
Design a sealing structure for a temperature-controlled container door in cold chain logistics, wherein the sealing layer and sealing strip are set inside the container body, and the sealing is achieved by the movement of the container door to reduce ultraviolet radiation. The structure of locking rod and locking groove is used to improve stability.
It improves the service life of the sealing layer, enhances the sealing effect of the door, prevents the sealing strip from aging due to ultraviolet radiation, and has a simple and reasonable structural design.
Smart Images

Figure CN224529573U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of temperature-controlled container door sealing, and specifically relates to a temperature-controlled container door sealing structure for cold chain logistics. Background Technology
[0002] Currently, cold chain logistics refers to the transportation, warehousing, and distribution system that maintains constant temperature for temperature-sensitive goods (such as food, medicine, and chemicals) throughout the entire supply chain process; its core objective is to ensure that products are kept in a suitable temperature environment from production to consumption to prevent spoilage, deterioration, or failure; this application designs a temperature-controlled container.
[0003] In the existing technology, the doors of temperature-controlled containers are double doors, and the double doors are sealed with door seals. The door seals are attached to the temperature-controlled container doors to form a sealed structure.
[0004] However, regarding the aforementioned structure, the door seals used in temperature-controlled containers have an exposed structure. Long-term exposure to ultraviolet radiation causes aging, affecting the lifespan of the seals. In contrast, the sealing structure of the temperature-controlled container door in this application represents a further improvement, enhancing the sealing performance of the temperature-controlled container door. Utility Model Content
[0005] This utility model proposes a sealing structure for a temperature-controlled container door in cold chain logistics, comprising a container body, a container door, and a sealing layer. The container body is provided with an outer layer and an inner layer. The container door includes a first door and a second door, both of which are connected to shaft holes provided on the outer layer of the container body by a shaft rod. However, both the first door and the second door form a movable structure. A sealing layer is provided on one side of the first door, and a locking rod is provided on one side of the second door. The sealing layer is in contact with the door of the inner layer, which helps the inner layer to form a sealed structure through the sealing layer. The locking rod is connected to one side of the sealing layer, which helps to improve the stability of the seal between the sealing layer and the inner layer. This solves the problems mentioned in the prior art.
[0006] The technical solution of this utility model is achieved as follows: The temperature-controlled container includes: The box body has an outer layer and an inner layer, with the inner layer located inside the outer layer; Preferably, the combination of one end of the inner layer and one end of the outer layer forms a concave shape; The box door is located at one end of the box body; The cabinet door includes a first door and a second door; The first door has a protruding positioning block on one side of its front and a protruding latch block on the other side; The first door has a recessed lock groove in the middle; The second door has a protruding positioning block on one side of its front and a protruding latch block on the other side; The second door has a protruding locking ring in the middle; The positioning block has a through hole on one side, and a fixing rod is inserted through the through hole; The fixing rod has a protruding locking rod on one side, and the locking rod is connected to the locking block; Preferably, the latches on both the first and second doors are staggered. Preferably, one end of the fixing rod of the first door is connected to a positioning ring provided at the bottom of the box; Preferably, one end of a fixing rod is connected to a positioning ring provided on the top of the box for the second door; A sealing layer is provided on the back of the first door, and the sealing layer is in the form of covering the interior of the outer layer; The sealing layer includes the door body and the sealing strip; One side of the door is attached to the end of the inner layer, and the other side is provided with a protruding limiting rod and limiting point; The sealing strip is fixed to the back of the first door on one side and fixed to the other side of the door body on the other side. The limiting rod is connected to the positioning rod on the back of the first door via a groove, and the connection is through-hole. The limiting point is in contact with the elastic block provided on the back of the first door; Preferably, the sealing strip has a structure resembling an air bladder; Preferably, the elastic block has a hollow internal structure; Preferably, the interior of the elastic block and the interior of the locking groove are in a communicating manner; Locking rod, which passes through the locking ring; The locking rod can be inserted into the locking groove; Preferably, the locking rod and the locking groove are threaded together; Preferably, the locking rod is formed in a close-fitting shape with the limiting point through the locking groove, the elastic block and the limiting point.
[0007] After adopting the above technical solution, the beneficial effects of this utility model are: its structural design is simple and reasonable, and it has a sealing structure that further improves the temperature control container door. The sealing layer of the door is installed inside the container body, and the sealing layer is connected to the door by a sealing strip. However, the sealing strip is also installed inside the container body, which helps the sealing layer reduce the exposure to ultraviolet rays and improve the service life of the sealing layer. Attached Figure Description
[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0009] Figure 1 This is a schematic diagram of the overall structure of the temperature-controlled container of this utility model.
[0010] Figure 2 This is an exploded view of the overall structure of the temperature-controlled container of this utility model.
[0011] Figure 3 This is an exploded view of the overall structure of the first door of this utility model.
[0012] Figure 4 This is a schematic diagram of the overall structure of the back of the first door of this utility model.
[0013] Figure 5 This is an exploded view of the overall structure of the second door of this utility model. Detailed Implementation
[0014] 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.
[0015] Example 1: like Figures 1-2As shown, this utility model proposes a sealing structure for a temperature-controlled container door in cold chain logistics, including a container body, a door, and a sealing layer. The container body is provided with an outer layer 2 and an inner layer 20. The door includes a first door 3 and a second door 30. Both the first door 3 and the second door 30 are connected to the shaft holes provided in the outer layer 2 of the container body by means of a shaft rod. However, both the first door 3 and the second door 30 form a movable structure. The first door 3 has a sealing layer on one side, and the second door 30 has a locking rod 7 on one side. The sealing layer is in contact with the doorway of the inner layer 20, which helps the inner layer 20 to pass through the sealing layer. The layers form a sealed structure, and the locking rod 7 is connected to one side of the sealing layer, which helps to improve the stability of the sealing layer and the inner layer 20. After adopting the above technical solution, the beneficial effects of this utility model are: its structural design is simple and reasonable, and it has a sealing structure that further improves the temperature control container door. The sealing layer provided on the door is installed inside the container body, and the sealing layer is connected to the door by a sealing strip 60. However, the sealing strip 60 is also installed inside the container body, which helps to reduce the exposure of ultraviolet rays to the sealing layer and improve the service life of the sealing layer.
[0016] like Figure 3 As shown, the sealing layer includes a door body 6 and a sealing strip 60. The sealing layer is located on the back of the first door 3 and covers the interior of the outer layer 2. One side of the door body 6 is attached to the end of the inner layer 20. One side of the sealing strip 60 is fixed to the back of the first door 3, and the other side is fixed to the other side of the door body 6. The sealing layer is affected by the movement of the first door 3. However, the door body 6 and the sealing strip 60 of the sealing layer are both installed inside the box, which helps to reduce the exposure of the door body 6 and the sealing strip 60 to ultraviolet rays and improve the service life of the sealing layer.
[0017] like Figure 2 As shown, the box door is located at one end of the box body, and the box door includes a first door 3 and a second door 30; however, the box door is a double door. The first door 3 has a protruding positioning block 4 on one side of its front and a protruding locking block 40 on the other side. The second door 30 also has a protruding positioning block 4 on one side of its front and a protruding locking block 40 on the other side. One side of the positioning block 4 has a through hole through which a fixing rod 51 passes. A protruding locking rod 510 is located on one side of the fixing rod 51, and the locking rod 510 connects to the locking block 40. However, the first door 3 uses one end of the fixing rod 51 to connect with a positioning ring 511 at the bottom of the box, while the second door 30 uses one end of the fixing rod to connect with a positioning ring 511 at the top of the box. This helps improve the stability of the connection between the door and the box, preventing the door from swinging. Preferably, the connection between the locking rod 510 and the locking block 40 is a hinged connection, which helps to improve the stability of the connection between the locking rod 510 and the locking block 40.
[0018] like Figure 2As shown, the box body is provided with an outer layer 2 and an inner layer 20, with the inner layer 20 located inside the outer layer 2. The combination of one end of the inner layer 20 and one end of the outer layer 2 is concave, while the seal is inserted inside the outer layer 2 and attached to one end of the inner layer 20, which helps to achieve a sealed structure for the inner layer and helps the sealing layer reduce the exposure to ultraviolet rays; Preferably, the inner layer and the sealing layer are magnetically bonded (in the prior art).
[0019] Example 2: like Figures 1-2 As shown, the first door 3 has a recessed lock groove 5 in the middle, and the second door 30 has a protruding lock ring 50 in the middle. The lock rod 7 passes through the lock ring 50, and the lock rod 7 can pass through the lock groove 5. The lock rod 7 and the lock groove 5 are connected by a thread. However, the first door 3 uses the lock groove 5 to connect with the lock rod 7 of the second door 30, which helps to improve the stability of the connection between the first door 3 and the second door 30. Furthermore, the latch blocks 40 of both the first door 3 and the second door 30 are in a staggered and opposite configuration; It should be noted that: First, the first door 3 and the second door 30 are connected to the positioning rings 511 provided at the bottom and top of the box body by fixing rod 51. However, the fixing rod 51 is connected to the locking block 40 by locking rod 510, which helps to improve the stability of the first door 3 and the second door 30 in the assembly with the box body. In this application, the first door 3 and the second door 30 are connected to the locking rod 7 by locking groove 5, which further improves the stability of the first door 3 and the second door 30 in the assembly with the box body.
[0020] Example 3: like Figure 3 As shown, the other side of the door body 6 is provided with a protruding limiting rod 61 and a limiting point 62. The limiting rod 61 is connected to the positioning rod 63 provided on the back of the first door 3 by means of a groove. It is a through-connection. However, the connection between the limiting rod 61 and the positioning rod 63 of the door body 6 helps to improve the stability of the assembly of the door body 6 and the first door 3, and prevents the door body 6 from falling due to its weight.
[0021] Example 4: For example, 1- Figure 5 As shown, the limiting point 62 is in contact with the elastic block 64 provided on the back of the first door 3. The interior of the elastic block 64 is connected to the interior of the lock groove 5. The interior of the elastic block 64 is hollow, and the locking rod 7 is threadedly connected to the lock groove 5. The locking rod 7 passes through the interior of the elastic block 64, and the extension and retraction of the elastic block 7 helps the locking rod 7 to form a contact shape with the limiting point 62 through the lock groove 5, the elastic block 64, and the limiting point 62. The extension and retraction of the locking rod 7 helps the elastic block 64 to form a contact shape with the limiting point 62 through the locking rod 7, improving the fit between the door body 6 and the inner layer 20 and preventing the door body 6 from detaching from the inner layer 20 due to swinging during transportation.
[0022] Preferably, the sealing strip 60 has an air bladder structure, but the interior of the sealing strip 60 and the door panel 6 is in the form of an air wall. When the door is closed, it is deformed by pressure, which helps the sealing strip 60 to form a retractable movement.
[0023] Preferably, door seals (existing technology, not shown in the figure) can be provided at the gaps between the first door 3 and the second door 30 and the housing assembly.
[0024] Preferably, the elastic block 64 is made of elastic plastic.
[0025] Brief description of the working principle: The refrigerated container includes a body, doors, and sealing layers. The body includes an outer layer 2 and an inner layer 20. The outer layer 20 is connected to the door via a shaft hole, allowing the door to open and close. The door is a double-door structure, including a first door 3 and a second door 30. The back of the first door 36 has a sealing layer, which includes a door body 6 and a sealing strip 60. The door body 6 is connected to the first door via the sealing strip 60, and the first door 6 and the sealing layer are integrated. The back of the first door 36 has a protruding positioning rod 63 and an elastic block 64. One side of the door body 6 has a limiting rod 61 and a limiting point 62. The positioning rod 63 and the limiting rod 61 are through-hole structures. The first door 3 uses the connection between the positioning rod 63 and the limiting rod 61 to prevent the sealing strip 60 from sagging due to the weight of the door body 6. The elastic block 64 and the limiting point 62 are in a close-fitting form. A locking ring 50 is provided on one side of the second door 30, and a locking rod 7 is provided inside the locking ring 50. When the first door 3 and the second door 30 are closed, the locking rod 7 can pass through the locking groove 5 and the elastic block 64 provided in the first door 3. The locking rod 7 and the locking groove 5 are connected by threads. However, the elastic block 64 can form a telescopic movement through the locking rod 7, which helps the elastic block 64 and the limiting point 62 to form a close fit shape, improving the stability of the door body 6 and the end of the inner layer 60. The front of the first door 3 and the second door 30 are provided with a positioning block 4 and a locking block 40. The positioning block 4 has a through hole with a fixing rod 51 inside. The fixing rod 51 is connected to the positioning ring 511 provided at the top and bottom of the box body, and the fixing rod 51 is connected to the locking block 40 by a locking rod 510, which helps to improve the stability of the assembly of the box door and the box body; it also helps to reduce the exposure of ultraviolet rays to the sealing layer and improve the service life of the sealing layer.
[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A sealing structure for a temperature-controlled container door in cold chain logistics, characterized in that, include: The box body has an outer layer and an inner layer respectively; A box door, which is located at one end of the box body, and the box door includes a first door and a second door; The first door has a recessed lock groove in the middle, and the second door has a protruding lock ring in the middle; A sealing layer is provided on the back of the first door, and the sealing layer is in the form of covering the interior of the outer layer; The sealing layer includes the door body and the sealing strip; A locking rod, which passes through the locking ring, and the locking rod can pass through the locking groove.
2. The sealing structure for a temperature-controlled container door in cold chain logistics as described in claim 1, characterized in that: One side of the door is attached to the end of the inner layer, and the other side is provided with a protruding limiting rod and a limiting point. The limiting rod is connected to the positioning rod provided on the back of the first door by means of a groove, and the limiting point is attached to the elastic block provided on the back of the first door.
3. The sealing structure for a temperature-controlled container door in cold chain logistics as described in claim 2, characterized in that: The sealing strip is fixed to the back of the first door on one side and to the other side of the door body on the other side.
4. The sealing structure for a temperature-controlled container door in cold chain logistics as described in claim 3, characterized in that: The sealing strip has the structure of a medium-sized air bladder.
5. The sealing structure for a temperature-controlled container door in cold chain logistics as described in claim 4, characterized in that: The elastic block has a hollow interior and is connected to the locking groove. The locking rod and the locking groove are connected by threads.
6. The sealing structure for a temperature-controlled container door in cold chain logistics as described in claim 5, characterized in that: The first door has a protruding positioning block on one side of its front and a protruding latch block on the other side.
7. The sealing structure for a temperature-controlled container door in cold chain logistics as described in claim 6, characterized in that: The second door has a protruding positioning block on one side of its front and a protruding latch block on the other side.
8. The sealing structure for a temperature-controlled container door in cold chain logistics as described in claim 7, characterized in that: The positioning block has a through hole on one side, and a fixing rod is inserted through the through hole.
9. The sealing structure for a temperature-controlled container door in cold chain logistics as described in claim 8, characterized in that: The fixing rod has a protruding locking rod on one side, which is connected to the locking block. The first door uses one end of the fixing rod to connect with the positioning ring at the bottom of the box, and the second door uses one end of the fixing rod to connect with the positioning ring at the top of the box.
10. The sealing structure for a temperature-controlled container door in cold chain logistics as described in claim 9, characterized in that: The latches on both the first and second doors are staggered and opposite in shape.