A superimposed multi-layer sealing door

Abstract

The application discloses a superimposed multi-layer sealing door which comprises a door frame, a door body and a sealing assembly. The door frame is internally provided with a passing space, the door body is arranged in the passing space and is hinged with the door frame to open and close the passing space. The sealing assembly comprises a first sealing strip and a second sealing strip made of elastic material. The first sealing strip is annularly arranged on the outer circumferential side of the door body, and the second sealing strip is arranged on the inner circumferential side of the door frame. When the door body closes the passing space, the first sealing strip and the second sealing strip abut and deform to form an interference fit. The interference fit between the first sealing strip and the second sealing strip can effectively seal, insulate and soundproof, thereby improving the sealing effect. The deformation between the first sealing strip and the second sealing strip can provide buffering, thereby effectively reducing abrasion and prolonging the service life.

Description

Technical Field

[0001] This utility model belongs to the field of door technology, and in particular relates to a superimposed multi-layer sealing door. Background Technology

[0002] A sealed door is a door with a special structural design that allows the door leaf to fit tightly against the door frame, reducing airflow, noise transmission, and dust entry. It is often used in street-facing residences or spaces with high privacy requirements.

[0003] However, existing sealed doors achieve a seal by simply installing a single layer of sealing strip on the door body to meet the door's surface. This single layer of sealing strip is not effective at heat and sound insulation, has a poor sealing effect, and is prone to wear and tear after long-term use, resulting in a short service life. Therefore, it is necessary to design a new sealed door to solve this problem. Utility Model Content

[0004] Technical problems to be solved This invention provides a stacked multi-layer sealing door, which can effectively insulate heat and sound and reduce wear, thereby improving the sealing effect and extending the service life.

[0005] Technical solution To achieve the above objectives, this utility model provides the following technical solution: A multi-layered, stacked sealing door includes a door frame, a door body, and a sealing assembly. The door frame has a built-in passage space, and the door body is placed within the passage space and hinged to the door frame to open and close the passage space. The sealing assembly includes a first sealing strip and a second sealing strip made of elastic material. The first sealing strip is installed around the periphery of the door body, and the second sealing strip is installed on the inner periphery of the door frame. The first sealing strip and the second sealing strip can abut against each other and deform with the door body as it rotates, forming an interference fit.

[0006] Preferably, the contact surfaces of the first sealing strip and the second sealing strip are arc-shaped.

[0007] Preferably, both the first sealing strip and the second sealing strip have hollow grooves inside.

[0008] Preferably, both the first sealing strip and the second sealing strip have reinforcing ribs integrally formed inside to divide the hollow groove in two.

[0009] Preferably, the door body has a first sound-absorbing cavity built into the part where the first sealing strip is installed, and the door frame has a second sound-absorbing cavity built into the part where the second sealing strip is installed.

[0010] Preferably, the door frame and the door body are respectively provided with a first annular groove and a second annular groove. The sealing assembly further includes a third sealing strip and a fourth sealing strip made of elastic material. The third sealing strip is installed around the periphery of the door body, and the fourth sealing strip is installed inside the periphery of the door frame. The first sealing strip and the second sealing strip are placed between the third sealing strip and the fourth sealing strip. When the door body closes the passage space, the third sealing strip abuts against the inner wall of the first annular groove and deforms, and the fourth sealing strip abuts against the inner wall of the second annular groove and deforms.

[0011] Preferably, both the third and fourth sealing strips have a hollow interior design.

[0012] Preferably, the first sealing strip and the third sealing strip are both installed on the door body by snap-fit, and the second sealing strip and the fourth sealing strip are both installed on the door frame by snap-fit.

[0013] Preferably, the first sealing strip, the second sealing strip, the third sealing strip, and the fourth sealing strip are all made of any one or more materials selected from rubber, silicone, TPE, TPU, and polyether ester.

[0014] Preferably, a rotating seat is embedded in the inner wall of the door frame to avoid the first sealing strip and the second sealing strip, and a swing blade is fixedly installed on the door body. The swing blade can be movably extended into the door frame and rotatedly connected to the rotating seat.

[0015] Preferably, the system further includes a drive mechanism and a control unit. The drive mechanism includes a motor, a linkage rod, and a guide block. The motor is fixedly mounted on the door body, and the guide block is slidably mounted on the inner side of the door frame. The motor output shaft is fixedly connected to the first and last ends of the linkage rod, and the guide block is hinged to the first and last ends, respectively. The control unit is mounted on the side of the door frame or on the door body, and is electrically connected to the motor to control the operation of the motor to drive the linkage rod to swing, thereby causing the guide block to slide so that the door body opens and closes the passage space.

[0016] Preferably, the door body has a sealed cavity inside, the motor is embedded in the door body and located inside the cavity, and the output shaft of the motor passes through the door body to the outside and is fixed to the first end of the linkage rod.

[0017] Preferably, a guide rail with a sliding groove is embedded in the inner side of the door frame, the guide block is slidably connected to the sliding groove, and the guide block partially protrudes from the sliding groove and is hinged to the tail end of the linkage rod.

[0018] Preferably, the guide rail is provided with buffer blocks at both ends of the slide groove, and during the opening and closing of the door, the two buffer blocks can abut against the guide block.

[0019] Preferably, the system also includes an electronic lock, which is embedded in the door body and has a retractable latch. A lock hole is also provided on the inner side wall of the door frame. The control unit is electrically connected to the electronic lock to drive the latch to engage or disengage from the lock hole.

[0020] Preferably, the control unit includes a microcontroller, and a camera, a voice module, a communication module, a sensor, and a display screen electrically connected to the microcontroller; the camera is used to capture and recognize faces, the voice module is used to recognize and play sounds, the communication module is used to receive remote control device signals, the sensor is used to sense the opening and closing of the door, and the display screen is used to display corresponding content.

[0021] Beneficial effects This utility model provides a superimposed multi-layer sealing door, which achieves sealing by interference fit between a first sealing strip installed on the door body and a second sealing strip installed on the door frame. This effectively insulates heat and sound, thereby improving the sealing effect. The deformation generated when the first and second sealing strips come into contact with each other provides cushioning, which effectively reduces wear and extends service life. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 A schematic diagram of the overall structure of this utility model is shown. Figure 1 ; Figure 2 It shows Figure 1 Rear view; Figure 3 It shows Figure 2 sectional view AA; Figure 4 It shows Figure 3 Enlarged view of point A in the middle; Figure 5 It shows Figure 2 BB (sectional view); Figure 6 It shows Figure 5 Enlarged view of point B in the middle; Figure 7 A schematic diagram of the overall structure of this utility model is shown. Figure 2 ; Figure 8 A schematic diagram of the overall structure of this utility model is shown. Figure 3 ; Figure 9 A schematic diagram of the structure of the door body and sealing assembly of this utility model is shown; Figure 10 It shows Figure 9 A sectional view; Figure 11 It shows Figure 10 Enlarged view of point C in the middle; Figure 12 It shows Figure 9 A schematic diagram of the decomposition process; Figure 13 A schematic diagram of the structure of the door frame and sealing assembly of this utility model is shown. Figure 1 ; Figure 14 A schematic diagram of the structure of the door frame and sealing assembly of this utility model is shown. Figure 2 ; Figure 15 It shows Figure 14 A sectional view; Figure 16 It shows Figure 15 Enlarged view at point D; Figure 17 A schematic diagram of the drive mechanism and guide rail of this utility model is shown.

[0023] In the diagram: 1. Door frame, 10. Passage space, 11. Second silencing cavity, 12. First annular groove, 13. Rotary seat, 14. Guide rail, 140. Slide groove, 15. Buffer block, 1k. Lock hole, 2. Door body, 20. Partition cavity, 21. First silencing cavity, 22. Second annular groove, 23. Swing, 3. Sealing assembly, 30. Hollow groove, 300. Reinforcing rib, 31. First sealing strip, 32. Second sealing strip, 33. Third sealing strip, 34. Fourth sealing strip, 4. Drive mechanism, 41. Motor, 42. Linkage rod, 43. Guide block, 5. Electronic lock, 5k. Lock tongue, 6. Sensor. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application. It is understood that the accompanying drawings are provided for reference and illustration only, and are not intended to limit this application. The connection relationships shown in the accompanying drawings are only for clear description and do not limit the connection method.

[0025] See appendix Figure 1 -Appendix Figure 8A multi-layered, stacked sealing door includes a door frame 1, a door body 2, and a sealing assembly 3. The door frame 1 has a passage space 10 inside, and the door body 2 is placed inside the passage space 10 and hinged to the door frame 1 to open and close the passage space 10. The sealing assembly 3 includes a first sealing strip 31 and a second sealing strip 32 made of elastic material. The first sealing strip 31 is installed around the periphery of the door body 2, and the second sealing strip 32 is installed inside the periphery of the door frame 1. The first sealing strip 31 and the second sealing strip 32 can abut against each other and deform with the rotation of the door body 2, forming an interference fit.

[0026] Specifically, during the process of rotating the door 2 to close the passage space 10, the first sealing strip 31 compresses the second sealing strip 32 and deforms simultaneously to provide cushioning and effectively reduce the wear of the first sealing strip 31 and the second sealing strip 32. In addition, it can also prevent the door 2 from being damaged by rigid collision with the door frame 1. When the door 2 closes the passage space 10, the first sealing strip 31 and the second sealing strip 32 abut against each other and are in an interference fit so that the door frame 1 and the door 2 fit tightly and eliminate the gap between them, thereby effectively isolating sound and heat. When rotating the door 2 to open the passage space 10, the first sealing strip 31 and the second sealing strip 32 move away from each other to return to their original state, ensuring that the first sealing strip 31 and the second sealing strip 32 can be reused.

[0027] In summary, this utility model achieves sealing by interference fit between the first sealing strip 31 installed on the door body 2 and the second sealing strip 32 installed on the door frame 1, which can effectively insulate heat and sound to improve the sealing effect. The deformation generated when the first sealing strip 31 and the second sealing strip 32 come into contact with each other provides cushioning, which can effectively reduce wear and extend service life.

[0028] See appendix Figure 4 Appendix Figure 6 Appendix Figure 11 and attached Figure 16 The contact surfaces of the first sealing strip 31 and the second sealing strip 32 are designed in an arc shape so that the first sealing strip 31 and the second sealing strip 32 form a misaligned contact during deformation. This structural design allows the first sealing strip 31 and the second sealing strip 32 to have more contact surfaces after deformation, further improving the sealing performance of the first sealing strip 31 and the second sealing strip 32. On the other hand, it can avoid hard contact between the first sealing strip 31 and the second sealing strip 32, thereby reducing wear and further extending the service life of the first sealing strip 31 and the second sealing strip 32.

[0029] See appendix Figure 4 Appendix Figure 6 Appendix Figure 11 and attached Figure 16Both the first sealing strip 31 and the second sealing strip 32 are provided with hollow grooves 30, so that the first sealing strip 31 and the second sealing strip 32 have a larger deformation range and stronger recovery ability.

[0030] Specifically, when the first sealing strip 31 and the second sealing strip 32 deform against each other, the greater deformation range means that more contact surfaces can be formed between the first sealing strip 31 and the second sealing strip 32, which further improves the sealing performance of the first sealing strip 31 and the second sealing strip 32. At the same time, it also allows the first sealing strip 31 and the second sealing strip 32 to have sufficient deformation space to avoid hard contact between them and reduce wear, thereby further extending the service life of the first sealing strip 31 and the second sealing strip 32. When the first sealing strip 31 and the second sealing strip 32 move away from each other, the stronger recovery ability makes it easier for the first sealing strip 31 and the second sealing strip 32 to return to their original position, which is beneficial for long-term use.

[0031] See appendix Figure 4 Appendix Figure 6 Appendix Figure 11 and attached Figure 16 The first sealing strip 31 and the second sealing strip 32 are both integrally formed with reinforcing ribs 300 that divide the hollow groove 30 into two parts. This structural design can make the structure of the first sealing strip 31 and the second sealing strip 32 more stable and have stronger elasticity without changing the volume of the first sealing strip 31 and the second sealing strip 32, so as to further improve the sealing performance and extend the service life.

[0032] See appendix Figure 4 Appendix Figure 6 Appendix Figure 11 and attached Figure 16 The door body 2 has a first sound-absorbing cavity 21 built into the part where the first sealing strip 31 is installed, and the door frame 1 has a second sound-absorbing cavity 11 built into the part where the second sealing strip 32 is installed.

[0033] Specifically, the vibration of the first sealing strip 31 when it deforms will generate a certain sound. This sound can be transmitted to the first silencing cavity 21 and eliminated. Similarly, the sound generated by the vibration of the second sealing strip 32 can also be transmitted to the second silencing cavity 11 and eliminated. Therefore, the above structural design can effectively eliminate the abnormal noise generated during the opening and closing of the door 2, and further improve the user experience. On the other hand, in some embodiments, the first silencing cavity 21 and the second silencing cavity 11 can also adopt a vacuum design to further improve the soundproofing effect.

[0034] See appendix Figure 3 -Appendix Figure 16The door frame 1 and the door body 2 are respectively provided with a first annular groove 12 and a second annular groove 22. The sealing assembly 3 also includes a third sealing strip 33 and a fourth sealing strip 34 made of elastic material. The third sealing strip 33 is installed around the periphery of the door body 2, and the fourth sealing strip 34 is installed inside the periphery of the door frame 1. The first sealing strip 31 and the second sealing strip 32 are placed between the third sealing strip 33 and the fourth sealing strip 34, and the third sealing strip 33 and the fourth sealing strip 34 can abut against the inner wall of the first annular groove 12 and the inner wall of the second annular groove 22 respectively when the door body 2 closes the passage space 10.

[0035] Specifically, when the first sealing strip 31 abuts against the second sealing strip 32, the third sealing strip 33 abuts against the inner wall of the first annular groove 12 and deforms, while the fourth sealing strip 34 abuts against the inner wall of the second annular groove 22 and deforms. At this time, the interference fit between the third sealing strip 33 and the door frame 1, and the interference fit between the fourth sealing strip 34 and the door body 2 can provide two layers of sealing, thereby providing three layers of sealing between the door frame 1 and the door body 2, so as to better insulate heat and sound and further improve the sealing effect. When the door body 2 is rotated to open the passage space 10, the third sealing strip 33 and the fourth sealing strip 34 move away from the first annular groove 12 and the second annular groove 22 respectively and return to their original shape, so as to ensure that the third sealing strip 33 and the fourth sealing strip 34 can be reused.

[0036] The first sealing strip 31 and the second sealing strip 32 are placed between the third sealing strip 33 and the fourth sealing strip 34, which makes the structure more compact and also facilitates the disassembly and replacement of the relatively easily damaged third sealing strip 33 and the fourth sealing strip 34.

[0037] See appendix Figure 4 Appendix Figure 6 Appendix Figure 11 and attached Figure 16 The third sealing strip 33 and the fourth sealing strip 34 are both hollow inside, so that the third sealing strip 33 and the fourth sealing strip 34 have a larger deformation range and stronger recovery ability.

[0038] Specifically, when the third sealing strip 33 and the fourth sealing strip 34 deform, a larger deformation range means that the third sealing strip 33 and the fourth sealing strip 34 can form more contact surfaces, thereby further improving the sealing performance between the third sealing strip 33 and the fourth sealing strip 34 and the door frame 1 and the door body 2; at the same time, it also allows the third sealing strip 33 and the fourth sealing strip 34 to have sufficient deformation space, so as to avoid the third sealing strip 33 and the fourth sealing strip 34 from making hard contact with the door frame 1 and the door body 2 respectively, thus reducing wear; and when the third sealing strip 33 and the fourth sealing strip 34 are away from the door frame 1 and the door body 2 respectively, the stronger recovery ability makes it easier for them to return to their original position, which is beneficial for long-term use.

[0039] See appendix Figure 4 Appendix Figure 6 Appendix Figure 11 and attached Figure 16 The first sealing strip 31 and the third sealing strip can be fixed to the door body 2 by means of adhesive bonding, bolt installation, etc., and the second sealing strip 32 and the fourth sealing strip 34 can also be fixed to the door frame 1 by means of adhesive bonding, bolt installation, etc. Since there are various related fixing methods, this utility model does not limit them. For ease of understanding, in this embodiment, the first sealing strip 31 and the third sealing strip 33 are both installed on the door body 2 by snap-fit, and the second sealing strip 32 and the fourth sealing strip 34 are both installed on the door frame 1 by snap-fit. Specifically, each sealing strip is provided with a locking block, and the door frame 1 and door body 2 are provided with locking grooves that correspond to the locking buckles, so that the sealing strips can be locked and fixed on the door frame 1 and door body 2. This design facilitates the disassembly and assembly of the first sealing strip 31, the second sealing strip 32, the third sealing strip 33 and the fourth sealing strip 34 with the door frame 1 and door body 2, and improves the convenience of maintenance.

[0040] See appendix Figure 1 -Appendix Figure 8 The first sealing strip 31, the second sealing strip 32, the third sealing strip 33 and the fourth sealing strip 34 are all made of any one or more materials selected from rubber, silicone, TPE, TPU and polyether ester.

[0041] Specifically, these materials possess good elasticity and resilience, providing ample cushioning and facilitating long-term use.

[0042] In addition to the materials mentioned above, the first sealing strip 31, the second sealing strip 32, the third sealing strip 33 and the fourth sealing strip 34 can also be made of other elastic materials. Since there are many types of elastic materials, this utility model does not impose any restrictions on them.

[0043] See appendix Figure 5 -Appendix Figure 9 and attached Figure 13 The inner wall of the door frame 1 is fitted with a rotating seat 13 that avoids the first sealing strip 31 and the second sealing strip 31. A swing blade 23 is fixedly installed on the door body 2. The swing blade 23 can extend into the door frame 1 and rotate to connect with the rotating seat 13.

[0044] Specifically, this design allows the hinge 23 to be hidden inside the inner wall of the door frame 1 after the door 2 closes the passage space 10, thereby reducing the gap between the door frame 1 and the door 2. Since the pivot 13 avoids the first sealing strip 31 and the second sealing strip 32, it will not affect the sealing performance. Therefore, the above structural design can effectively improve the overall sealing performance of this electric door and enhance the sound insulation, wind insulation and heat insulation effects.

[0045] See appendix Figure 7 -Appendix Figure 8 and attached Figure 17 The present invention also includes a drive mechanism 4 and a control unit (not shown in the figure). The drive mechanism 4 includes a motor 41, a linkage rod 42 and a guide block 43. The motor 41 is fixedly installed on the door body 2, and the guide block 43 is slidably installed on the inner side of the door frame 1. The output shaft of the motor 41 and the hinged guide block 43 are respectively fixed at both ends of the linkage rod 42. The control unit is installed on the side of the door frame 1 or on the door body 2, and the control unit is electrically connected to the motor 41 to control the operation of the motor 41 to drive the linkage rod 42 to swing, thereby driving the guide block 43 to slide so that the door body 2 can open and close the passage space 10.

[0046] Specifically, during use, the motor 41 is started by the control unit. The motor 41 drives the linkage rod 42 to swing, which in turn drives the guide block 43 to slide along the inner wall of the door frame 1, so that the door body 2 rotates and opens and closes the passage space 10. During the opening and closing of the door body 2, the linkage rod 42 produces less abnormal noise, which improves the user experience. When the door body 2 opens the passage space 10, the triangular structure formed between the door frame 1, the door body 2 and the linkage rod 42 allows the door frame 1 to provide support to the door body 2 through the linkage rod 42, which improves the structural stability.

[0047] The control unit can be a control box or a host with built-in functional modules, etc. Since there are various types of components that make up the control unit, this utility model does not limit them.

[0048] See appendix Figure 7 -Appendix Figure 12 The door body 2 has a sealed cavity 20 inside. The motor 41 is embedded in the door body 2 and located inside the cavity 20. The output shaft of the motor 41 passes through the door body 2 to the outside and is fixed to the first end of the linkage rod 42.

[0049] Specifically, this design allows the motor 41 to be hidden inside the door 2, thereby improving the installation stability of the motor 41. The sealed cavity 20 has the function of eliminating sound, which can effectively reduce the noise generated by the motor 41 during operation and improve the user experience. On the other hand, in some embodiments, the cavity 20 can also adopt a vacuum design to further improve the noise reduction effect.

[0050] See appendix Figure 7 Appendix Figure 13 and attached Figure 17 The inner side of the door frame 1 is fitted with a guide rail 14 with a sliding groove 140. The guide block 43 is slidably connected to the sliding groove 140, and part of the guide block 43 protrudes from the sliding groove 140 and is hinged to the end of the linkage rod 42.

[0051] Specifically, during the process of the motor 41 driving the linkage rod 42 to swing and open the door 2, the guide block 43 moves towards the first end of the slide groove 140, forming a stable triangular structure between the door frame 1, the door 2, and the linkage rod 42; when the motor 41 drives the linkage rod 42 to swing and close the door 2, the guide block 43 moves towards the second end of the slide groove 140, causing the linkage rod 42 to fold parallel to the guide rail 14; the cooperation between the guide rail 14 and the guide block 43 can ensure the sliding stability of the guide block 43 and ensure the smooth opening and closing of the door 2.

[0052] The guide rail 14 can be integrally formed on the door frame 1, or installed on the door frame 1 by means of snap-fit, screw connection or other methods. Since there are various related methods, this utility model does not limit this.

[0053] See appendix Figure 7 Appendix Figure 13 and attached Figure 17 The guide rail 14 is provided with buffer blocks 15 at both ends of the slide groove 140. During the opening and closing of the door 2, the two buffer blocks 15 can abut against the guide block 43.

[0054] Specifically, during the opening and closing of the door 2, the guide block 43 will move to both ends of the slide 140, and the design of the buffer block 15 can abut against the buffer guide block 43 to prevent the guide block 43 from being damaged by rigid collision with the guide rail 14.

[0055] The buffer block 15 can be made of elastic materials such as rubber and silicone that have the ability to deform and recover, so as to facilitate multiple uses. However, since there are many types of elastic materials, this utility model does not limit them.

[0056] See appendix Figure 9 -Appendix Figure 14 The present invention also includes an electronic lock 5, which is embedded in the door body 2 and has a retractable latch 5k. A lock hole 1k is also provided on the inner side wall of the door frame 1. The control unit is electrically connected to the electronic lock 5 to drive the latch 5k to engage or disengage from the lock hole 1k.

[0057] Specifically, when the door 2 closes the passage space 10, the electronic lock 5 can be activated by the control unit to drive the bolt 5k to engage with the lock hole 1k and lock the door 2 onto the door frame 1; when it is necessary to open the door 2, the electronic lock 5 can be activated by the control unit to drive the bolt 5k to disengage from the lock hole 1k and release the restriction, and then the motor 41 can be activated by the control unit to control the linkage rod 42 to swing and open the door 2.

[0058] Among them, the electronic lock 5 is an existing product and comes in a variety of types. Therefore, this utility model does not elaborate on its specific model and structural principle, nor does it impose any restrictions.

[0059] See appendix Figure 1 -Appendix Figure 17 The control unit includes a microcontroller, and a camera, a voice module, a communication module, a sensor 6, and a display screen electrically connected to the microcontroller; the camera is used to capture and recognize faces, the voice module is used to recognize and play sounds, the communication module is used to receive signals from remote control devices, the sensor 6 is used to sense the opening and closing of the door 2, and the display screen is used to display corresponding content.

[0060] Specifically, the manufacturer can pre-program the microcontroller with control programs, enabling the microcontroller to control the operation of motor 41 and the unlocking of electronic lock 5 through signals from the camera module, voice module, and communication module, as well as to control the locking of electronic lock 5 through signals from sensor 6; while the display screen is used to display relevant content, such as the content captured by the camera, so that the user can observe whether their head is facing the camera, and can also be used to display the unlocking status of electronic lock 5, etc.

[0061] For ease of understanding, the following usage process is illustrated in this embodiment: When the camera module, voice module, and communication module send signals to the microcontroller, the microcontroller can control the electronic lock 5 to unlock and control the motor 41 to run and open the door 2; when the microcontroller controls the motor 41 to run and close the door 2, and the sensor 6 senses that the door 2 is closed, it will send a signal to the microcontroller to control the electronic lock 5 to lock the door 2.

[0062] In addition to the control methods mentioned above, manufacturers can pre-program other control programs for the microcontroller, enabling the microcontroller to work with the camera module, voice module, communication module, and sensor 6 to control the usage status of the motor 41 and the electronic lock 5. Since the relevant control methods are diverse and relatively common in the electronics field, the circuit structure of the microcontroller will not be described in detail in this utility model.

[0063] It should be noted that 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 and improvements 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 stacked multi-layered sealed door, comprising a door frame and a door body, wherein the door frame has a built-in passage space, and the door body is placed within the passage space and hinged to the door frame to open and close the passage space, characterized in that, It also includes a sealing assembly, which includes a first sealing strip and a second sealing strip made of elastic material. The first sealing strip is installed around the periphery of the door body, and the second sealing strip is installed inside the periphery of the door frame. The first sealing strip and the second sealing strip can abut against each other and deform with the door body as it rotates, forming an interference fit.

2. The superimposed multi-layer sealing door according to claim 1, characterized in that, The contact surfaces of the first sealing strip and the second sealing strip are designed in an arc shape.

3. A multi-layered sealing door according to claim 1, characterized in that, Both the first sealing strip and the second sealing strip have hollow grooves inside.

4. A multi-layered sealing door according to claim 3, characterized in that, Both the first and second sealing strips have integrally formed reinforcing ribs that divide the hollow groove in two.

5. A multi-layered sealing door according to claim 1, characterized in that, The door body has a first sound-absorbing cavity built into the part where the first sealing strip is installed, and the door frame has a second sound-absorbing cavity built into the part where the second sealing strip is installed.

6. A multi-layered sealing door according to claim 1, characterized in that, The door frame and the door body are respectively provided with a first annular groove and a second annular groove. The sealing assembly also includes a third sealing strip and a fourth sealing strip made of elastic material. The third sealing strip is installed around the periphery of the door body, and the fourth sealing strip is installed inside the periphery of the door frame. The first sealing strip and the second sealing strip are placed between the third sealing strip and the fourth sealing strip. When the door body closes the passage space, the third sealing strip abuts against the inner wall of the first annular groove and deforms, and the fourth sealing strip abuts against the inner wall of the second annular groove and deforms.

7. A multi-layered sealing door according to claim 6, characterized in that, Both the third and fourth sealing strips have a hollow interior design.

8. A multi-layered sealing door according to claim 6, characterized in that, The first and third sealing strips are both installed on the door body by snap-fit, and the second and fourth sealing strips are both installed on the door frame by snap-fit.

9. A multi-layered sealing door according to claim 6, characterized in that, The first sealing strip, the second sealing strip, the third sealing strip, and the fourth sealing strip are all made of any one or more materials selected from rubber, silicone, TPE, TPU, and polyether ester.

10. A superimposed multi-layer sealing door according to any one of claims 1-9, characterized in that, It also includes a drive mechanism and a control unit. The drive mechanism includes a motor, a linkage rod, and a guide block. The motor is fixedly mounted on the door body, and the guide block is slidably mounted on the inner side of the door frame. The motor output shaft is fixedly connected to the first and last ends of the linkage rod, and the guide block is hinged to the first and last ends, respectively. The control unit is mounted on the side of the door frame or on the door body, and the control unit is electrically connected to the motor to control the operation of the motor to drive the linkage rod to swing, thereby causing the guide block to slide so that the door body opens and closes the passage space.

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