Combined type dynamic sealing cold storage heat preservation door

Abstract

The utility model discloses a combined type dynamic sealing cold storage heat preservation door, and relates to the technical field of heat preservation doors, the combined type dynamic sealing cold storage heat preservation door comprises a door frame and a door body, a concave groove is formed in the inner side face of the door frame, and a magnetic sealing strip, an inflatable sealing bag and a multi-cavity sealing strip which are arranged at the concave groove are sequentially connected in a bonding mode; clamping plates are arranged on the front face and the back face of the inflatable sealing bag, a plurality of limiting plates used for fixing the inflatable sealing bag are movably installed on one faces of the two clamping plates at equal intervals, an extrusion block movably penetrating through the door frame is connected to the middle of the upper portion of the inner side face of the magnetic sealing strip in an abutting mode, and the controller A regulates and controls the gas tank to output gas according to data so that the inflatable sealing bag can be inflated. In addition, the multi-cavity sealing strip is supplemented, so that the problems that a common rubber sealing strip is poor in low-temperature elasticity, a plastic sealing rubber strip is prone to embrittlement at low temperature, felt sealing precision is poor and the like are solved, the sealing performance is greatly improved, the service life is prolonged, the operation cost is reduced, and the product quality is guaranteed.

Description

Technical Field

[0001] This application relates to the field of thermal insulation door technology, and in particular to a composite dynamic sealing cold storage thermal insulation door. Background Technology

[0002] In many industries such as cold chain logistics, food processing, and pharmaceutical warehousing, insulated doors are key components for maintaining low-temperature environments. Their performance directly affects operating costs and product quality. In the early days, the industry often used ordinary rubber sealing strips, felt, and plastic sealing strips to achieve the sealing of insulated doors. Although ordinary rubber sealing strips are low in cost and easy to install, their elasticity decreases sharply at low temperatures, greatly reducing both sealing performance and service life. Felt seals have a certain heat insulation and sound absorption effect, but their sealing accuracy is poor and they are prone to moisture and mold. Plastic sealing strips have acceptable corrosion resistance and a neat appearance, but they are prone to cracking at low temperatures and have insufficient sealing pressure.

[0003] As the industry's requirements for the sealing performance, durability, and adaptability to complex environments of insulated doors continue to rise, the drawbacks of these traditional sealing methods are becoming increasingly apparent, making it difficult to meet the increasingly stringent usage demands. Therefore, this solution proposes a composite dynamic sealing cold storage insulated door. Utility Model Content

[0004] To address the issues of poor sealing performance and durability of insulated doors, this application provides a composite dynamic sealing cold storage insulated door.

[0005] The composite dynamic sealing cold storage insulation door provided in this application adopts the following technical solution:

[0006] A composite dynamic sealing cold storage insulation door includes a door frame and a door body. The inner side of the door frame has a concave groove. A magnetic sealing strip, an inflatable sealing bladder, and a multi-cavity sealing strip are sequentially connected by an adhesive method in the concave groove. The inflatable sealing bladder has clamps on both sides. Multiple limiting plates for fixing the inflatable sealing bladder are equidistantly installed on one side of the two clamps. A compression block that moves through the door frame is abutted against the upper center of the inner side of the magnetic sealing strip. A pressure sensor is fixedly installed on one side of the compression block. One end of the pressure sensor is fixedly connected to a limiting post. One end of the limiting post moves through a right-angle plate that is fixedly connected to the door frame. A compression spring with two ends abutting against the right-angle plate and the pressure sensor is sleeved on the outer circumferential surface of the limiting post.

[0007] By adopting the above technical solution, the structure achieves a good sealing effect while also monitoring and adjusting the sealing pressure, etc., through the magnetic sealing strip, the air-expanding sealing bladder and the multi-cavity sealing strip sequentially bonded to the concave groove on the inner side of the door frame, combined with the fixing effect of the two-sided clamping plates and the limiting plate of the air-expanding sealing bladder, as well as the cooperation of the squeezing block, pressure sensor, limiting post, right angle plate and compression spring.

[0008] Preferably, an insulated box is fixedly connected to the top of one side of the door frame, and a connecting pipe that moves through the insulated box is fixedly connected to the top of the air-inflatable sealing bladder. A counterweight A is sleeved on the outer circumferential surface of the connecting pipe.

[0009] By adopting the above technical solution, a counterweight is provided to the connecting pipe by being sleeved on the outer circumference, enabling the connecting pipe to be automatically pulled out.

[0010] Preferably, one end of the connecting pipe is connected to a controller A that is fixedly connected to the insulation box. The controller A is fixedly connected to the gas tank through a pipe. The gas tank is fitted into the groove at the top of the limiting block, and the bottom of the limiting block is fixedly connected to the insulation box.

[0011] By adopting the above technical solution, controller A is connected to one end of the connecting pipe and fixed to the insulation box. It is connected to the gas tank through the pipe. The gas tank is positioned and supported by the limit block and fixed to the insulation box, thereby realizing the control of the gas output in the gas tank. Gas is supplied to the inflatable sealing bladder through the connecting pipe to ensure the normal operation of the inflatable sealing bladder and ensure that the sealing performance of the door is adjustable.

[0012] Preferably, a rectangular cavity is provided inside the door body, and a filling layer is provided inside the rectangular cavity.

[0013] By adopting the above technical solution, the rectangular cavity inside the door body is filled with aerogel felt, which has low thermal conductivity and other properties, and plays a good role in heat insulation, heat preservation and sound insulation, thereby improving the overall performance of the door and creating a more comfortable and quiet environment for the interior.

[0014] Preferably, the outer peripheral surface of the door frame is provided with an installation groove, and the inner side of the door frame is provided with a groove on the side near the concave groove, and an electric heating wire that fits into the outer peripheral surface of the door body is provided in the groove.

[0015] By adopting the above technical solution, the electric heating wire is set in the groove on the inner side of the door frame near the concave groove, and is in contact with the outer peripheral surface of the door body. Its function is to prevent icing and condensation at the joint between the door body and the door frame in cold environments, which would affect the door's sealing and normal use.

[0016] Preferably, the connecting end of the electric heating wire is provided with a connecting wire, and a counterweight B that moves through the heat preservation box is sleeved on the outer peripheral surface of the connecting wire.

[0017] By adopting the above technical solution, the counterweight B plays a stabilizing and fixing role on the connecting wire of the electric heating wire, so that the connecting wire can be automatically pulled out.

[0018] Preferably, one end of the connecting wire is fixedly connected to a controller B, which is fixedly connected to the bottom of the insulation box.

[0019] By adopting the above technical solution, controller B can intelligently control the working status of the electric heating wire. By adjusting parameters such as current, the heating power of the electric heating wire can be adjusted, thereby controlling the temperature around the door body according to actual needs and effectively preventing icing, condensation, and other situations.

[0020] Preferably, a fixing block is fixedly connected to one side of the middle of one side of the door frame, the fixing block is engaged with a fixing plate whose end is rotatably connected to the door body, and a handle is fixedly connected to the outer side of the fixing plate.

[0021] By adopting the above technical solution, the fixing block and the fixing plate engage, allowing the door body to rotate relative to the door frame and realize the opening and closing function of the door. The handle is fixed on the outer side of the fixing plate, making it convenient for the user to hold and apply force. By operating the handle, the fixing plate is rotated, thereby easily controlling the opening and closing of the door body and improving the convenience of door use.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The magnetic sealing strip utilizes neodymium iron boron magnetic strips to achieve initial sealing and transmit compressive force. A pressure sensor monitors the pressure, and controller A adjusts the gas output from the gas tank based on the data to inflate the gas-filled sealing bladder. In addition, a multi-chamber sealing strip is added to supplement the sealing. This solves the problems of poor low-temperature elasticity of ordinary rubber sealing strips, easy cracking of plastic sealing strips at low temperatures, and poor sealing accuracy of felt. It significantly improves sealing performance, extends service life, reduces operating costs, and ensures product quality.

[0024] 2. By filling the inside of the door body with vacuum insulation panels and aerogel felt, and using a nylon + % glass fiber reinforced thermal break structure for the door frame, the heat insulation performance is greatly improved, effectively preventing heat conduction. The electric heating wire is controlled by controller B to heat the door connection to prevent icing from affecting use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the application documents;

[0026] Figure 2 This is a cross-sectional structural diagram of the main body of the door in this application;

[0027] Figure 3 This is a schematic diagram of the magnetic sealing strip, the air-expanding sealing bladder, and the multi-cavity sealing strip in this application.

[0028] Figure 4 This is a partial component structure diagram of this application document;

[0029] Figure 5 This is a schematic diagram of the connection structure between the door frame and the insulation box in this application.

[0030] Figure 6This is a cross-sectional structural diagram of the door frame and the door body in this application.

[0031] Reference numerals: 1. Door frame; 101. Mounting groove; 102. Recessed groove; 103. Magnetic sealing strip; 104. Air-inflated sealing bladder; 1041. Clamping plate;

[0032] 1042. Limiting plate; 105. Multi-cavity sealing strip; 106. Connecting pipe; 107. Counterweight A; 108. Controller A; 109. Gas tank; 110. Limiting block; 111. Compression block; 112. Pressure sensor; 113. Limiting post; 114. Compression spring; 115. Right angle plate;

[0033] 2. Door body; 201. Filling layer; 202. Electric heating wire; 203. Connecting wire; 204. Counterweight B; 205. Controller B;

[0034] 3. Fixing block; 4. Fixing plate; 5. Handle; 6. Insulation box. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0036] The device's "up, down, left, right" perspectives are... Figure 1 The orientation of the attached diagram is the reference.

[0037] This application discloses a composite dynamic sealing cold storage insulation door.

[0038] Reference Figure 1 , Figure 3As shown, a composite dynamic sealing cold storage insulation door includes a door frame 1 and a door body 2. A rectangular concave groove 102 is formed on the inner side of the door frame 1. A magnetic sealing strip 103, an inflatable sealing bladder 104, and a multi-cavity sealing strip 105 are bonded to the concave groove 102. The multi-cavity sealing strip 105 is an EPDM multi-cavity sealing strip. The magnetic sealing strip 103 is designed with (low-temperature resistant silicone + neodymium iron boron magnetic strip). Clamping plates 1041 are provided on both sides of the inflatable sealing bladder 104. Multiple limiting plates 1042 for fixing the inflatable sealing bladder 104 are equidistantly mounted on one side of the two clamping plates 1041. The magnetic sealing strip 103, clamping plates 1041, and multi-cavity sealing strip 105... The magnetic sealing strip 103 is connected in sequence by adhesive bonding. A pressing block 111 is abutted against the upper middle of the inner side of the magnetic sealing strip 103. The pressing block 111 is movably connected to the door frame 1. A pressure sensor 112 is fixedly installed on the side of the pressing block 111 away from the magnetic sealing strip 103. The pressure sensor 112 is model DYMH-105. A limit post 113 is fixedly connected to the end of the pressure sensor 112 away from the pressing block 111. A right angle plate 115 is movably connected to one end of the limit post 113. The right angle plate 115 is fixedly connected to the door frame 1. A compression spring 114 is sleeved on the outer peripheral surface of the limit post 113. One end of the compression spring 114 abuts against the right angle plate 115, and the other end of the compression spring 114 abuts against the pressure sensor 112.

[0039] When the door body 2 is closed, it contacts the door frame 1, first pressing the magnetic sealing strip 103 at the concave groove 102 on the inner side of the door frame 1. The magnetic sealing strip 103 is designed with low-temperature resistant silicone and neodymium iron boron magnetic strips. It utilizes the magnetic adsorption of neodymium iron boron magnetic strips to achieve initial sealing and generate a certain amount of compressive force. After being compressed, the magnetic sealing strip 103 will transfer the compressive force to the pressing block 111 that is in contact with it, causing the pressing block 111 to move through the door frame 1 and move away from the magnetic sealing strip 103. The movement of the pressing block 111 drives the pressure sensor 112 fixedly installed on its back to move. The pressure sensor 112 then drives the limiting post 113 fixedly connected to it to move. When the limiting post 113 moves, it will compress the outer circumference of the door frame 111. The compression spring 114 has one end abutting against the right-angle plate 115 fixed on the door frame 1, and the other end abutting against the pressure sensor 112. At this time, the pressure sensor 112 can monitor the magnitude of the compressive force and feed back relevant data. The air-inflating sealing bladder 104 is fixed by the clamping plates 1041 on both sides and multiple limiting plates 1042. After the magnetic sealing strip 103 initially seals, the air-inflating sealing bladder 104 can be inflated according to the data fed back by the pressure sensor 112, so that it expands and further enhances the sealing effect. Finally, the multi-cavity sealing strip 105, as a supplement, works together with the magnetic sealing strip 103 and the air-inflating sealing bladder 104 to further improve the sealing performance in the closed state of the door and achieve efficient sealing.

[0040] It should be noted that the pressure sensor 112 and the wiring and control device connection methods are existing and mature technologies, therefore the specific connection relationships will not be described in detail and can be used with existing connection assemblies.

[0041] Reference Figures 3-5 As shown, an insulated box 6 for placing equipment is welded to one side of the door frame 1. A connecting pipe 106 is fixedly connected to the top of the air-inflatable sealing bladder 104. The connecting pipe 106 passes through a round hole opened at the top of the insulated box 6. A counterweight A107 is fixedly installed on the outer circumferential surface of the connecting pipe 106 inside the insulated box 6. A controller A108 is connected to one end of the connecting pipe 106. The base of the controller A108 is fixedly connected to the bottom of the insulated box 6 by bolts. The controller A108 is threadedly connected to the air outlet of the gas tank 109 through a pipe. The gas tank 109 is installed on the top of the limiting block 110. The top of the limiting block 110 has a groove adapted to the size of the gas tank 109, and the bottom of the limiting block 110 is fixedly connected to the insulated box 6.

[0042] The insulation box 6 is welded to the door frame 1, serving as a platform for placing equipment and providing a stable temperature environment for the internal equipment to ensure its normal operation. The gas tank 109, as a gas storage device, is placed in the groove at the top of the limiting block 110. The bottom of the limiting block 110 is fixed to the insulation box 6 to ensure the stability of the gas tank 109 and provide a foundation for subsequent gas supply. The controller A108 is threadedly connected to the gas outlet of the gas tank 109 through a pipe and is responsible for precisely controlling the gas output of the gas tank 109. One end of the connecting pipe 106 is fixed to the top of the inflatable sealing bladder 104, and the other end passes through the round hole at the top of the insulation box 6 and is connected to the controller A108. The counterweight A107 on the outer periphery of the connecting pipe 106 inside the insulation box 6 allows the connecting pipe 106 to automatically retract after being pulled up. The gas controlled by the controller A108 is transported to the inflatable sealing bladder 104 through the connecting pipe 106, allowing it to inflate or deflate according to actual needs, thereby flexibly adjusting the door sealing performance to adapt to different sealing requirements.

[0043] Reference Figure 2 , Figure 4 , Figure 6As shown, the door body 2 is welded together using a dual-purpose welding method. A rectangular cavity is formed inside the door body 2, and a filling layer 201 is filled within this cavity. The filling layer 201 is a composite filling of vacuum insulation board and aerogel felt, with a thermal conductivity ≤0.008W / (m·K). An installation groove 101 is formed on the outer surface of the door frame 1, and a nylon 66+30% glass fiber reinforced thermal break structure is embedded within the groove 101 to block the metal's heat conduction path. A groove is formed on the inner side of the door frame 1 near the concave groove 102, and an electric heating wire 202 is installed within this groove. A connecting wire 203 is fixedly connected to the connecting end of the electric heating wire 202, which is attached to the outer peripheral surface of the door body 2. A counterweight B204 is fitted inside the heat preservation box 6 on the outer peripheral surface of the connecting wire 203. A controller B205 is fixedly connected to one end of the connecting wire 203. The bottom of the controller B205 is fixedly connected to the heat preservation box 6. A fixing block 3 with a limit groove on the top is fixedly connected to the middle side of one side of the door frame 1. A fixing plate 4 is engaged with the fixing block 3 at the limit groove. The end of the fixing plate 4 away from the fixing block 3 is rotatably connected to the door body 2. A ball-shaped handle 5 is fixedly connected to the outer side of the fixing plate 4.

[0044] The door body 2 is welded together, and its internal rectangular cavity is filled with a filling layer 201 composed of a vacuum insulation board and aerogel felt. Its extremely low thermal conductivity (≤0.008W / (m·K)) significantly hinders heat transfer, greatly improving the door's thermal insulation performance and effectively maintaining stable indoor temperature. The mounting groove 101 on the outer periphery of the door frame 1 is embedded with a nylon 66+30% glass fiber reinforced thermally broken structure, which blocks the metal's own heat conduction path, reduces heat conduction at the door frame 1, further enhancing the overall thermal insulation effect and preventing heat loss or transfer from the door frame 1. When heating is required at the connection between the door body 2 and the door frame 1, it prevents... To prevent icing and other issues, controller B205 controls the working state of electric heating wire 202 via connecting wire 203 connected to electric heating wire 202. Electric heating wire 202 adheres to the outer surface of door body 2 and generates heat after being energized, lifting the connection between door body 2 and door frame 1 to ensure normal use and sealing performance of the door. The user holds the ball-shaped handle 5 on the outer side of the fixing plate 4 and applies force to drive the fixing plate 4 to rotate around the connection point with door body 2, thereby realizing the rotation of door body 2 relative to door frame 1 and completing the opening and closing action of the door. The top limiting groove of fixing block 3 on the side of door frame 1 engages with fixing plate 4 to lock door body 2.

[0045] The implementation principle of a composite dynamic sealing cold storage insulation door according to an embodiment of this application is as follows: When the door body 2 is closed, it compresses the magnetic sealing strip 103 at the concave groove 102 of the door frame 1. The neodymium iron boron magnetic strip achieves initial sealing and generates compressive force, which is transmitted to the compression block 111, driving the pressure sensor 112 and the limit post 113 to move and monitor the pressure. Based on the pressure data, the controller A108 regulates the output gas from the gas tank 109, which inflates the air-expanding sealing bladder 104 through the connecting pipe 106, further enhancing the seal. The multi-cavity sealing strip 105 serves as a supplement to achieve a highly efficient seal. The interior of the door body 2 is filled with vacuum insulation board and aerogel felt. The door frame 1 adopts a nylon 66 + 30% glass fiber reinforced thermal break structure, which greatly improves the thermal insulation performance. In cold weather, the controller B205 controls the electric heating wire 202 to heat the door connection to prevent icing from affecting use. The user holds the handle 5 and rotates the fixing plate 4 to open and close the door. The fixing block 3 engages with the fixing plate 4 to lock the door body 2.

[0046] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A composite dynamic sealing cold storage insulation door, characterized in that: Including door frame (1) and door body (2), the inner side of door frame (1) is provided with a concave groove (102), the magnetic sealing strip (103) provided at the concave groove (102) is connected with the air inflation type sealing capsule (104) and the multi-cavity sealing strip (105) in sequence by bonding; The opposite sides of the air inflation type sealing capsule (104) are provided with clamps (1041), and a plurality of limiting plates (1042) for fixing the air inflation type sealing capsule (104) are movably arranged on one side of the two clamps (1041) at equal intervals. The inner side of the magnetic sealing strip (103) is provided with a pressing block (111) movably penetrating the door frame (1), one side of the pressing block (111) is fixedly provided with a pressure sensor (112), one end of the pressure sensor (112) is fixedly connected with a limiting column (113), one end of the limiting column (113) movably penetrates a right-angle plate (115) fixedly connected with the door frame (1), and the outer circumferential surface of the limiting column (113) is sleeved with a compression spring (114) abutting against the right-angle plate (115) and the pressure sensor (112) at two ends.

2. The composite dynamic sealing cold storage door according to claim 1, characterized in that: One side of the door frame (1) is fixedly connected with a heat preservation box (6), the top end of the air inflation type sealing capsule (104) is fixedly connected with a connecting pipe (106) movably penetrating the heat preservation box (6), and the outer circumferential surface of the connecting pipe (106) is sleeved with a counterweight A (107).

3. The composite dynamic sealing cold storage door according to claim 2, characterized in that: One end of the connecting pipe (106) is connected with a controller A (108) fixedly connected with the heat preservation box (6), the controller A (108) is fixedly connected with a gas tank (109) through a pipeline, the gas tank (109) is sleeved in the groove at the top of a limiting block (110), and the bottom of the limiting block (110) is fixedly connected with the heat preservation box (6).

4. The composite dynamic sealing cold storage door according to claim 1, characterized in that: The inside of the door body (2) is provided with a rectangular cavity, and the inside of the door body (2) is provided with a filling layer (201) in the rectangular cavity.

5. The composite dynamic sealing cold storage door according to claim 1, characterized in that: The outer circumferential surface of the door frame (1) is provided with a mounting groove (101), and the inner side of the door frame (1) is provided with a groove near one side of the concave groove (102), and the groove is provided with an electric heating wire (202) abutting against the outer circumferential surface of the door body (2).

6. The composite dynamic sealing cold storage door according to claim 5, characterized in that: The connecting end of the electric heating wire (202) is provided with a connecting line (203), and the outer circumferential surface of the connecting line (203) is sleeved with a counterweight B (204) movably penetrating the heat preservation box (6).

7. The composite dynamic sealing cold storage door according to claim 6, characterized in that: One end of the connecting line (203) is fixedly connected with a controller B (205) fixedly connected with the heat preservation box (6) at the bottom.

8. The composite dynamic sealing cold storage door of claim 1, wherein: One side of the middle of the door frame (1) is fixedly connected with a fixed block (3), the fixed block (3) is hingedly connected with a fixed plate (4) having one end rotatably connected with the door body (2), and the outer side of the fixed plate (4) is fixedly connected with a handle (5).

Images