A type of sealed door for cold chain warehouses

Abstract

This utility model discloses a sealed door for a cold chain warehouse, relating to the field of sealed doors. The utility model includes a door frame and a first housing. Two door panels are provided on the outer surface of the door frame, each with a storage groove on its back. The utility model incorporates a storage groove, a second housing, a second servo motor, a lead screw, a threaded seat, a movable rod, a sliding plate, and a movable plate. Before opening the door, the second servo motor is activated, driving the lead screw to rotate. The lead screw then moves the threaded seat, which in turn moves the sliding plate and the movable rod, causing the movable plate and the second sealing strip to move. This allows the second sealing strip to move into the storage groove, where it is not in contact with the door frame. Then, the first servo motor is activated to open the door. In this case, the second sealing strip will not rub against the door frame or the wall, thus slowing down its wear and extending its service life.

Description

Technical Field

[0001] This utility model relates to the field of sealed warehouse doors, specifically a sealed warehouse door for cold chain warehouses. Background Technology

[0002] A warehouse consists of storage rooms, transportation and conveying facilities, pipelines and equipment for entering and leaving the warehouse, fire protection facilities, and management rooms. Warehouses serve manufacturers, commodity suppliers, and logistics organizations by storing different goods. In cold chain logistics, goods to be transported need to be refrigerated in warehouses to keep them fresh. To reduce the loss of cold air in the warehouse, sealing strips are usually installed between the warehouse door and the door frame. Closing the warehouse door and the door frame compresses the sealing strips to ensure the airtightness of the warehouse door.

[0003] Existing cold chain warehouse sealed doors have sealing strips installed between the door frame and the door body to improve the sealing effect between the door body and the door frame and reduce the probability of cold air leakage. However, during the opening and closing process, the sealing strip is prone to friction with the door frame or wall. The sealing strip is subjected to frequent friction over a long period of time, which will accelerate its wear. At the same time, frequent friction and long-term use will lead to a decrease in the sealing performance of the sealing strip, thereby reducing the sealing effect and shortening the service life of the sealing strip. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a sealed door for cold chain warehouses to solve the technical problem that the sealing strip will frequently rub against the door frame during the opening and closing process, which will accelerate the wear of the sealing strip.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealed cold chain warehouse door, comprising a door frame and a first housing, wherein two door bodies are provided on the outer surface of the door frame, and a storage groove is provided on the back of each of the two door bodies; a second housing is installed on the outer surface of each of the two door bodies, and a second servo motor is installed inside the second housing; and sliding grooves are provided at the top and bottom of the second housing; a lead screw is connected to the output end of the second servo motor, and a threaded seat is threaded to the outer wall of the lead screw; a sliding plate penetrating the sliding groove is fixed at the top and bottom of the threaded seat; a movable rod is installed on one side of the sliding plate by bolts; the end of the movable rod extends into the interior of the storage groove and is fitted with a movable plate; and a second sealing strip is provided on the back of the movable plate.

[0006] By adopting the above technical solution, before opening the door, the second servo motor is started first. The operation of the second servo motor can drive the lead screw to rotate, which in turn drives the threaded seat to move. The threaded seat drives the slide plate and the movable rod to move, and also drives the movable plate and the second sealing strip to move.

[0007] Furthermore, the outer wall of the movable rod is provided with a sealing ring, the outer wall of the sealing ring is in contact with the door body, and the sealing ring is made of EPDM rubber material.

[0008] By adopting the above technical solution, the sealing ring can improve the sealing between the movable rod and the door body, preventing external gas from entering the storage slot through the gap between the movable rod and the door body.

[0009] Furthermore, a second track is fixed on both sides of the door frame, a side plate is installed on one side of the door body, a second guide wheel is installed at the bottom of the side plate, and the second guide wheel is located on the second track.

[0010] By adopting the above technical solution, the side panel can be moved when the door moves, and the side panel will drive the second guide wheel to roll on the second track, thereby improving the stability of the door when it moves.

[0011] Furthermore, a first track is installed on the top of the door frame, and first guide wheels are installed on both sides of the top of the door body, with the first guide wheels located on the first track.

[0012] By adopting the above technical solution, the first guide wheel will roll on the first track when the door moves, thereby improving the stability of the door when it moves.

[0013] Furthermore, movable grooves are provided on both sides of the bottom of the first housing, and movable seats are slidably arranged inside the movable grooves, with the bottom of the movable seats fixedly connected to the top of the door.

[0014] By adopting the above technical solution, the movable seat can slide inside the movable slot, and at the same time the movable seat will drive the door to move so that the door can close or open.

[0015] Furthermore, a first servo motor is installed inside the first housing, and the output end of the first servo motor is connected to a gear via a drive shaft, and one end of the drive shaft is connected to the first housing via a bearing.

[0016] By adopting the above technical solution, when the door needs to be opened, the first servo motor can be started, and the operation of the first servo motor can drive the gear to rotate.

[0017] Furthermore, racks are fixed to the top of both movable seats, and both racks mesh with gears.

[0018] By adopting the above technical solution, when the gear rotates, it can drive the two racks to move towards each other or in opposite directions, and when the racks move, they can drive the movable seat to move.

[0019] Furthermore, a first sealing strip is installed on the other side of the door body, with one side of the two first sealing strips tightly fitted together. The first sealing strip is made of EPDM rubber material.

[0020] By adopting the above technical solution, the first sealing strip can improve the sealing performance of the door after it is closed.

[0021] Furthermore, the back of the second sealing strip is tightly fitted to the outer surface of the door frame, and the second sealing strip is made of EPDM rubber material.

[0022] By adopting the above technical solution, the second sealing strip can improve the sealing between the door frame and the door body, and prevent cold air leakage.

[0023] Furthermore, the second sealing strip is adapted to the storage groove, and the movable plate is slidably connected to the storage groove.

[0024] By adopting the above technical solution, the second sealing strip can be stored inside the storage groove, avoiding continuous friction between the second sealing strip and the door frame or wall when the door is opened, thereby improving the service life of the second sealing strip.

[0025] In summary, the present invention has the following main advantages: 1. This utility model includes a storage slot, a second housing, a second servo motor, a lead screw, a threaded seat, a movable rod, a sliding plate, and a movable plate. Before opening the door, the second servo motor is started first. The second servo motor drives the lead screw to rotate, which in turn moves the threaded seat. The threaded seat moves the sliding plate and the movable rod, and also moves the movable plate and the second sealing strip, so that the second sealing strip moves into the storage slot. At this time, the second sealing strip is not in contact with the door frame. Then the first servo motor is started to open the door. At this time, the second sealing strip will not rub against the door frame and the wall, thereby slowing down the damage rate of the second sealing strip and extending its service life. 2. This utility model is equipped with a sliding groove so that when the threaded seat moves, the sliding plate can slide inside the sliding groove. The sliding plate and the sliding groove can guide the threaded seat, thereby improving the stability of the threaded seat when it moves. By providing a sealing ring, the sealing ring can improve the sealing between the movable rod and the door body, preventing external gas from entering the storage groove through the gap between the movable rod and the door body. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the first shell structure of this utility model; Figure 3 This is a schematic diagram of the overall back structure of this utility model; Figure 4 This is a schematic diagram of the door structure of this utility model; Figure 5 This is a schematic diagram of the rack structure of this utility model; Figure 6 This is a side sectional view of the door structure of this utility model; Figure 7 This is a schematic diagram of the second sealing strip structure of this utility model; Figure 8 This is a schematic diagram of the back structure of the door body of this utility model.

[0027] In the diagram: 1. Door frame; 2. Door body; 3. First track; 4. First housing; 5. First servo motor; 6. Gear; 7. Rack; 8. Movable seat; 9. Movable groove; 10. First inspection plate; 11. Second housing; 12. First guide wheel; 13. First sealing strip; 14. Second track; 15. Side plate; 16. Second guide wheel; 17. Storage groove; 18. Second sealing strip; 19. Movable rod; 20. Sealing ring; 21. Slide plate; 22. Threaded seat; 23. Slide groove; 24. Second servo motor; 25. Lead screw; 26. Second inspection plate; 27. Movable plate. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The embodiments of this utility model will be described below based on its overall structure.

[0030] Example 1: A type of sealed cold chain warehouse door, such as Figures 1-8As shown, the device includes a door frame 1 and a first housing 4. Two door bodies 2 are provided on the outer surface of the door frame 1. Each door body 2 has a storage groove 17 on its back. A second housing 11 is installed on the outer surface of each door body 2. A second servo motor 24 is installed inside the second housing 11. Slide grooves 23 are provided at the top and bottom of the second housing 11. A lead screw 25 is connected to the output end of the second servo motor 24. A threaded seat 22 is threaded onto the outer wall of the lead screw 25. Both the lead screw 25 and the threaded seat 22 are made of stainless steel. A sliding plate 21, penetrating the slide groove 23, is fixed to the top and bottom of the threaded seat 22. A movable rod 19 is bolted to one side of the door 1. The end of the movable rod 19 extends into the interior of the storage slot 17 and is fitted with a movable plate 27. A second sealing strip 18 is provided on the back of the movable plate 27. Before opening the door 2, the second servo motor 24 is started. The operation of the second servo motor 24 can drive the lead screw 25 to rotate. One end of the lead screw 25 is connected to the second housing 11 through a bearing. The lead screw 25 drives the threaded seat 22 to move. The threaded seat 22 drives the slide plate 21 and the movable rod 19 to move, and also drives the movable plate 27 and the second sealing strip 18 to move. A second inspection plate 26 is bolted to the side of the second housing 11.

[0031] Specifically, the bottom of the first housing 4 has movable grooves 9 on both sides. Movable seats 8 are slidably installed inside the movable grooves 9, and the bottom of the movable seats 8 is fixedly connected to the top of the door 2. The movable seats 8 can slide inside the movable grooves 9, and simultaneously drive the door 2 to move, allowing the door 2 to close or open. A first servo motor 5 is installed inside the first housing 4, and the output end of the first servo motor 5 is connected to a gear 6 via a drive shaft. One end of the drive shaft is connected to the first housing 4 via a bearing. When the door 2 needs to be opened, the first servo motor 5 can be activated, driving the gear 6 to rotate. The top of the first housing 4... The first inspection plate 10 is bolted on. The tops of the two movable seats 8 are fixed with racks 7. Both racks 7 mesh with gears 6. When gears 6 rotate, they can drive the two racks 7 to move towards each other or in opposite directions. When the racks 7 move, they can drive the movable seats 8 to move. The two racks 7 are staggered. Gears 6 and racks 7 are made of alloy steel such as 40Cr. The surfaces of gears 6 and racks 7 are first plated with nickel as the base layer and then plated with chromium as the top layer. Nickel's high corrosion resistance protects the base material and enhances the adhesion of the subsequent chromium plating layer to prevent it from peeling off. Chromium's high wear resistance resists the frictional wear of frequent meshing of the tooth surfaces and extends the service life.

[0032] See Figures 2-8The outer wall of the movable rod 19 is provided with a sealing ring 20, which fits against the door body 2. The sealing ring 20 is made of EPDM rubber. The sealing ring 20 can improve the sealing between the movable rod 19 and the door body 2, preventing external gas from entering the storage groove 17 through the gap between the movable rod 19 and the door body 2. The back of the second sealing strip 18 fits tightly against the outer surface of the door frame 1. The second sealing strip 18 is also made of EPDM rubber. The second sealing strip 18 can improve the sealing between the door frame 1 and the door body 2, preventing cold air leakage. The second sealing strip 18 is adapted to the storage groove 17. The movable plate 27 is slidably connected to the storage groove 17 so that the second sealing strip 18 can be stored inside the storage groove 17, avoiding the second sealing strip 18 from constantly rubbing against the door frame 1 or the wall when the door body 2 is opened, thereby improving the service life of the second sealing strip 18. The first servo motor 5 and the second servo motor 24 are both electrically connected to the external control panel.

[0033] Example 2: Based on the above embodiment 1, in order to improve the stability of the door 2 when it moves, it is necessary to guide the door 2, so the following structure will be set.

[0034] Specifically, a second track 14 is fixed on both sides of the door frame 1, a side plate 15 is installed on one side of the door body 2, a second guide wheel 16 is installed at the bottom of the side plate 15 and the second guide wheel 16 is located on the second track 14. When the door body 2 moves, it can drive the side plate 15 to move, and the side plate 15 will drive the second guide wheel 16 to roll on the second track 14, thereby improving the stability of the door body 2 when it moves. A first track 3 is installed on the top of the door frame 1, and a first guide wheel 12 is installed on both sides of the top of the door body 2 and the first guide wheel 12 is located on the first track 3. When the door body 2 moves, it will drive the first guide wheel 12 to roll on the first track 3, thereby improving the stability of the door body 2 when it moves.

[0035] Example 3: Based on the above embodiment 1, in order to improve the sealing performance of the door 2 after it is closed, the following structure will be set.

[0036] See Figures 1-8 On the other side of the door body 2, a first sealing strip 13 is installed. The two first sealing strips 13 are tightly fitted together on one side. The first sealing strip 13 is made of EPDM rubber material. The first sealing strip 13 can improve the sealing performance of the door body 2 after it is closed.

[0037] The working principle of this utility model is as follows: First, the staff can install the door frame 1, the first guide rail 3, the second guide rail 14 and the first housing 4 on the wall of the cold chain warehouse. After installation, the power is turned on. Before the warehouse door is opened, the staff first starts the second servo motor 24. The second servo motor 24 can drive the lead screw 25 to rotate. The lead screw 25 drives the threaded seat 22 to move. The threaded seat 22 drives the slide plate 21 and the movable rod 19 to move, and drives the movable plate 27 and the second sealing strip 18 to move, so that the second sealing strip 18 moves into the storage groove 17. At this time, the second sealing strip 18 is not in contact with the door frame 1. Then, the first servo motor 5 is started. The first servo motor 5 can drive the gear 6 to rotate. When the gear 6 rotates, it can drive the two racks 7 to move in opposite directions. When the racks 7 move, they can drive the movable seat 8 to move, and then drive the door 2 to move, so that the door 2 opens. When closing the door, simply start the first servo motor 5, drive the gear 6 to reverse, which in turn drives the two racks 7 to move towards each other, then drives the movable seat 8 to reset and move, and drives the door body 2 to reset and move, so that the two door bodies 2 close together. At the same time, the first sealing strip 13 can improve the sealing performance of the door body 2 after it is closed. Then start the second servo motor 24. The operation of the second servo motor 24 can drive the lead screw 25 to reverse, which in turn drives the threaded seat 22 to reset and move, and drives the slide plate 21 to move, and then drives the movable plate 27 and the second sealing strip 18 to move, so that the second sealing strip 18 is tightly fitted with the door frame 1 and cooperates with the first sealing strip 13 to improve the sealing performance of the door body 2 after it is closed.

[0038] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A sealed door for a cold chain warehouse, comprising a door frame (1) and a first housing (4), characterized in that: The outer surface of the door frame (1) is provided with two door bodies (2). The back of each of the two door bodies (2) is provided with a storage groove (17). The outer surface of each of the two door bodies (2) is provided with a second housing (11). The second servo motor (24) is installed inside the second housing (11). The top and bottom of the second housing (11) are provided with a sliding groove (23). The output end of the second servo motor (24) is connected to a lead screw (25). The outer wall of the lead screw (25) is threadedly connected to a threaded seat (22). The top and bottom of the threaded seat (22) are fixed with a sliding plate (21) that passes through the sliding groove (23). A movable rod (19) is installed on one side of the sliding plate (21) by bolts. The end of the movable rod (19) extends into the storage groove (17) and is provided with a movable plate (27). The back of the movable plate (27) is provided with a second sealing strip (18).

2. The cold chain warehouse sealing door according to claim 1, characterized in that: The outer wall of the movable rod (19) is provided with a sealing ring (20), the outer wall of the sealing ring (20) is in contact with the door body (2), and the sealing ring (20) is made of EPDM rubber material.

3. A cold chain warehouse sealing door according to claim 1, characterized in that: The door frame (1) is fixed with a second track (14) on both sides, and a side plate (15) is installed on one side of the door body (2). A second guide wheel (16) is installed at the bottom of the side plate (15), and the second guide wheel (16) is located on the second track (14).

4. A cold chain warehouse sealing door according to claim 1, characterized in that: The top of the door frame (1) is equipped with a first track (3), and the top two sides of the door body (2) are equipped with first guide wheels (12), which are located on the first track (3).

5. A cold chain warehouse sealing door according to claim 1, characterized in that: The first housing (4) has movable grooves (9) on both sides of its bottom. Movable seats (8) are slidably arranged inside the movable grooves (9), and the bottom of the movable seats (8) is fixedly connected to the top of the door (2).

6. A cold chain warehouse sealing door according to claim 1, characterized in that: The first servo motor (5) is installed inside the first housing (4), and the output end of the first servo motor (5) is connected to a gear (6) through a drive shaft, and one end of the drive shaft is connected to the first housing (4) through a bearing.

7. A cold chain warehouse sealing door according to claim 5, characterized in that: Both of the movable seats (8) have racks (7) fixed to their tops, and both racks (7) mesh with gears (6).

8. A cold chain warehouse sealing door according to claim 1, characterized in that: A first sealing strip (13) is installed on the other side of the door body (2). The two first sealing strips (13) are tightly fitted together on one side. The first sealing strip (13) is made of EPDM rubber material.

9. A cold chain warehouse sealing door according to claim 1, characterized in that: The back of the second sealing strip (18) is tightly fitted to the outer surface of the door frame (1), and the second sealing strip (18) is made of EPDM rubber material.

10. A cold chain warehouse sealing door according to claim 1, characterized in that: The second sealing strip (18) is adapted to the storage groove (17), and the movable plate (27) is slidably connected to the storage groove (17).

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