Sliding door

Abstract

The utility model discloses a sliding door, which relates to the technical field of door leaves and comprises a door leaf and a door frame with a sealing device at the bottom. The door leaf is assembled on the door frame; the sealing device comprises a sealing lifting module and a sealing driver used for driving the sealing lifting module to be attached to or away from the bottom face of the door leaf. The joint of a lower frame and the bottom of a door leaf of an existing sliding door lacks a sealing line or is sealed through a wool top, but the sealing performance of the wool top is poor. The sealing device is arranged at the bottom of the door frame, the sealing device comprises the sealing lifting module and the sealing driver, and the sealing driver is used for driving the sealing lifting module to rise to be tightly attached to the bottom of the door leaf, or the sealing lifting module descends so that the door leaf can slide conveniently. The sealing lifting module is used as a sealing piece, and the top of the sealing lifting module is tightly attached to the bottom face of the door leaf under the action of the sealing driver, so that the sealing performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of door leaves, in particular to a sliding door. Background Art

[0002] Currently, sliding doors on the market typically have pulleys installed and run on floor tracks. When a lower frame is provided, the track is mounted on the lower frame, and the pulleys act on the track. When a lower frame is absent, the track is embedded in the ground through grooves in the floor, and the pulleys act on the track. Some doors lack lower pulleys and run on floor tracks, known as suspended sliding doors, which typically lack a lower door frame. These sliding doors lack seals where the bottom of the door leaf meets the floor or lower frame, or some use less-than-perfect sealing strips. Because the bottom of the sliding door leaf lacks close contact with the lower frame or floor, a gap exists, allowing odors, cockroaches, mosquitoes, and other insects to easily enter the room through this gap. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a sliding door that can enhance the sealing effect of the bottom of the sliding door and reduce odor, cockroaches, mosquitoes, etc. from entering and exiting the room through the gap at the bottom of the sliding door.

[0004] The utility model provides a sliding door, comprising a door leaf and a door frame with a sealing device at the bottom; the door leaf is assembled on the door frame; the sealing device comprises a sealing lifting module and a sealing driver for driving the sealing lifting module to be close to or away from the bottom surface of the door leaf.

[0005] The sliding door according to the embodiment of the utility model has at least the following beneficial effects:

[0006] The junction between the lower frame and the bottom of the door leaf of existing sliding doors lacks a sealing line or uses a wool strip for sealing, but the wool strip has poor sealing performance. The present invention configures a sealing device at the bottom of the door frame. The sealing device includes a sealing lifting module and a sealing driver. The sealing lifting module is driven by the sealing driver to rise and adhere to the bottom surface of the door leaf, or to lower the sealing lifting module to facilitate sliding of the door leaf. The sealing lifting module is used as a sealing member. Under the action of the sealing driver, the top of the sealing lifting module is tightly attached to the bottom surface of the door leaf, thereby improving the sealing performance. Compared with wool strips, the sealing performance is better and can effectively prevent odors, cockroaches, mosquitoes, etc. from entering the room through the gap between the door leaf and the door frame.

[0007] As one preferred solution, the sealing lifting module is connected to the sealing driver via a transmission assembly. By connecting the sealing lifting module and the sealing driver using the transmission assembly, the space at the bottom of the door frame can be fully utilized, and more locations are available for installing the sealing driver.

[0008] As one of the preferred solutions, the sealing lifting module is provided with a rack; the output end of the sealing driver is connected to the rack through the transmission assembly and drives the sealing lifting module to perform lifting motion.

[0009] As one of the preferred solutions, the transmission assembly includes a reducer module, a first transmission wheel assembly, a second transmission wheel assembly and a flexible transmission member; the output end of the sealed driver is connected to the input end of the reducer module, the output end of the reducer module is engaged with the first transmission wheel assembly, the first transmission wheel assembly is connected to and drives the second transmission wheel assembly through the flexible transmission member, and the second transmission wheel assembly is engaged with the rack.

[0010] Connecting the sealing lifting module and the sealing drive through the reducer module can not only reduce the rotational speed but also increase the torque, thereby enabling the rack engaged with the second transmission wheel assembly to obtain greater force, and the top of the sealing lifting module fits more closely with the bottom surface of the door leaf.

[0011] As one of the preferred solutions, the flexible transmission member is a belt, the first transmission wheel assembly and the second transmission wheel assembly both include a pulley and a transmission gear, the pulley and the transmission gear are coaxially connected, and the belt is wound between the two pulleys.

[0012] As one preferred solution, a first magnetic strip is provided on the top of the sealing lift module, and a second magnetic strip with opposite polarity to the first magnetic strip is provided on the bottom of the door leaf. When the sealing lift module is raised into position, the first and second magnetic strips are magnetically attracted to each other. When the sealing lift module is raised, the first magnetic strip of the sealing lift module and the second magnetic strip of the door leaf are attracted to each other, significantly improving the sealing performance of the bottom of the door leaf.

[0013] As one of the preferred solutions, the sealing device also includes a lower frame, the lower frame is provided with a accommodating cavity with an opening facing upward, the sealing driver and the sealing lifting module are arranged in the accommodating cavity, the sealing driver is configured to drive the sealing lifting module to extend upward from the accommodating cavity to fit tightly against the door leaf, and to drive the sealing lifting module to retract downward into the accommodating cavity, the side wall of the accommodating cavity is provided with a boss, and the mating surface between the sealing lifting module and the boss is provided with a sealing strip.

[0014] There is a gap between the mating surfaces of the sealing lifting module and the boss. A sealing strip is added to the mating surface of the sealing lifting module and the boss. When the sealing lifting module is lowered into place, the sealing lifting module can press the sealing strip against the upper surface of the boss, thereby increasing the sealing performance of the sealing device and reducing the flow of moisture from the ground into the accommodating cavity.

[0015] As a preferred solution, a UV light strip for disinfection is installed below the boss and within the housing cavity. The housing cavity of the lower frame is prone to bacterial growth. Installing the UV light strip below the boss can disinfect and sterilize the housing cavity, effectively preventing bacterial growth. It also disinfects the sealed lifting module after it is lowered.

[0016] As one of the preferred solutions, a hanging rail is provided on the top of the door frame; and the door leaf is slidably connected to the hanging rail via a hanging member.

[0017] As one preferred solution, the hanging rail is equipped with a door leaf drive device for driving the movement of the door leaf; and / or, a lower pulley is provided at the bottom of the door leaf, and a lower rail is provided at the bottom of the door frame to cooperate with the lower pulley. When the door leaf is pushed or pulled, the door leaf drive device can automatically drive the door leaf to open and close. Adjusting the position of the lower pulley to ensure a good fit between the lower pulley and the lower rail can effectively reduce the shaking of the door leaf when it is pushed or pulled.

[0018] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by practicing the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the internal structure of the sealing device of one embodiment of the utility model when the sealing lifting module is raised;

[0020] Figure 2 This is a schematic diagram of the internal structure of the sealing device of one embodiment of the utility model when the sealing lifting module is in the lowered state;

[0021] Figure 3 This is a schematic diagram of a state in which a sealing lifting module of a sealing device according to an embodiment of the present invention is attached to the bottom surface of a door leaf;

[0022] Figure 4 This is a schematic diagram of a state in which the sealing lifting module of the sealing device of one embodiment of the utility model is away from the bottom surface of the door leaf;

[0023] Figure 5 It is a schematic diagram of the assembled state of the hanging rail and the door leaf in one embodiment of the utility model.

[0024] Figure numerals: 1. Door leaf; 11. Second magnetic strip; 12. Lower pulley; 2. Door frame; 21. Hanging rail; 22. Hanging piece; 23. Door leaf drive motor; 24. Lower rail; 3. Sealing device; 31. Sealing lifting module; 311. Rack; 312. First magnetic strip; 313. Sealing strip; 32. Sealing driver; 33. Boss; 34. UV light strip; 35. Lower frame; 36. Accommodating chamber; 4. Transmission assembly; 41. Reducer module; 42. First transmission wheel assembly; 43. Second transmission wheel assembly; 44. Flexible transmission member; 5. Ground. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms upper, lower, etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of this utility model, "above," "below," and "within" are understood to be exclusive of the number indicated, while "above," "below," and "within" are understood to be inclusive of the number indicated. The use of the terms "first" and "second" is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, or implicitly specifying the number or order of the technical features indicated.

[0028] In the description of the present invention, it should be noted that terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments.

[0030] Existing sliding doors are primarily installed using floor rails or overhead rails. Both methods result in a large gap between the door leaf and the door frame. To improve sealing, some sliding doors on the market use a furring strip between the lower door frame and the door leaf. However, this furring strip provides poor sealing, and after prolonged use, the door leaf sheds, causing the sealing effect to plummet. This leads to a short service life and poor sealing, making it easy for odors, cockroaches, mosquitoes, and other insects to enter the room through the gap between the door leaf and the door frame.

[0031] In order to improve the sealing performance of the bottom of the sliding door, this embodiment provides a sliding door, including a door frame 2 and a door leaf 1; specifically, the door leaf 1 is installed on the door frame 2, and the door leaf 1 can be pushed and slid along the horizontal edge of the door frame 2. Figure 5 As shown, the top of the door frame 2 is equipped with a hanging rail 21, which suspends the door leaf 1 via a hanging member 22. The hanging member 22 can be mounted on the hanging rail 21 via a pulley and can slide along the extension direction of the hanging rail 21. The sealing device 3 is installed at the bottom of the door frame 2. Specifically, during installation, the hanging rail 21 needs to be installed on the top of the door frame 2 first, and the lower rail 24 needs to be installed in the groove after the groove is cut in the ground 5, and then the floor tiles are laid.

[0032] like Figure 1 As shown, the sealing device 3 is mounted at the bottom of the door frame 2. Specifically, the sealing device 3 comprises a sealing driver 32 and a sealing lifting module 31. The sealing driver 32 is used to drive the sealing lifting module 31 to move up and down in a vertical plane, so that the sealing lifting module 31 is in close contact with or away from the bottom surface of the door leaf 1. When the sealing lifting module 31 is raised, its top surface contacts the bottom surface of the door leaf 1, thereby improving the sealing performance. More specifically, when the door leaf 1 is closed, the sealing driver 32 drives the sealing lifting module 31 to actively rise and contact the bottom surface of the door leaf 1. When the door is closed, the sealing driver 32 continuously outputs power, so that the sealing lifting module 31 is subjected to a constant lifting force and contacts the bottom surface of the door leaf 1. When the door needs to be opened, the sealing driver 32 drives the sealing lifting module 31 to descend, separating the sealing lifting module 31 from the bottom surface of the door leaf 1, allowing the door leaf 1 to be opened normally.

[0033] The above-mentioned sealing method of using the sealing lifting module 31 to tightly adhere to the bottom surface of the door leaf 1 can improve the sealing performance, prevent odor from entering from the outside, and prevent cockroaches and mosquitoes from entering through the gap between the door leaf 1 and the door frame 2.

[0034] Because the bottom portion of the door frame 2 is relatively wide, in order to fully utilize the horizontal space and avoid the need for a deep ground trench when installing the sealing device 3, in this embodiment, the sealing driver 32 is connected to the sealing lifting module 31 via a transmission assembly 4. Specifically, the sealing lifting module 31 is equipped with a rack 311 extending in the vertical direction. The output end of the sealing driver 32 is connected to the rack 311 via the transmission assembly 4. When the sealing driver 32 is in operation, the output end of the sealing driver 32 drives the sealing lifting module 31 to move up and down through the transmission assembly 4 and the rack 311.

[0035] More specifically, the sealing device 3 further includes a lower frame 35, the extension direction of the lower frame 35 being consistent with the movement direction of the door leaf 1. The lower frame 35 is provided with a receiving cavity 36, the opening of the receiving cavity 36 being open upward, and the sealing driver 32 and the sealing lifting module 31 being disposed within the receiving cavity 36 of the lower frame 35. The sealing driver 32 is configured to drive the sealing lifting module 31 to move linearly upward, such that the sealing lifting module 31 extends out of the receiving cavity 36 to closely contact the bottom surface of the door leaf 1, and the sealing driver 32 is configured to drive the sealing lifting module 31 to move linearly downward, such that the sealing lifting module 31 retracts into the receiving cavity 36 to move away from the bottom surface of the door leaf 1.

[0036] The seal driver 32 is a motor. The transmission assembly 4 includes a reducer module 41, a first transmission wheel assembly 42, a second transmission wheel assembly 43, and a flexible transmission member 44. The seal lift module 31 is equipped with a rack 311. Furthermore, the output end of the seal driver 32 (i.e., the output shaft of the motor) is connected to the input end of the reducer module 41. The output end of the reducer module 41 meshes with the first transmission wheel assembly 42, allowing the seal driver 32 to rotate the first transmission wheel assembly 42 through the reducer module 41. The first transmission wheel assembly 42 and the second transmission wheel assembly 43 are connected via a flexible transmission member 44, allowing the first transmission wheel assembly 42 to rotate the second transmission wheel assembly 43, which meshes with the rack 311. The reducer module 41 includes multiple intermeshing gears.

[0037] It is understood that in some examples, the flexible transmission member 44 is a belt, and the first transmission wheel assembly 42 and the second transmission wheel assembly 43 each include a pulley and a transmission gear, wherein the pulley and the transmission gear are coaxially connected, the belt is wound between the two pulleys, the transmission gear of the first transmission wheel assembly 42 is meshed with the reducer module 41, and the transmission gear of the second transmission wheel assembly 43 is meshed with the rack 311. In other examples, the flexible transmission member 44 is a chain, and the first transmission wheel assembly 42 and the second transmission wheel assembly 43 each include a sprocket and a transmission gear, and the chain is wound between the two sprockets.

[0038] More specifically, Figure 1As shown, the central axes of the first transmission wheel assembly 42 and the second transmission wheel assembly 43 are located in the same vertical plane. The sealing driver 32 increases the torque after being decelerated by the reducer module 41, and then drives the vertically arranged rack 311 to perform lifting movement through the first transmission wheel assembly 42, the flexible transmission member 44 and the second transmission wheel assembly 43.

[0039] The working principle of the reducer is based on the design and arrangement of gears, which can change the speed and torque of the input and output shafts; under the condition of constant power, the speed is inversely proportional to the torque, so slowing down the speed naturally increases the torque. The reduction ratio is one of the key factors that determine the output torque of the reducer. The larger the reduction ratio, the greater the output torque is generally. By adjusting the reduction ratio, the output torque can be changed while the output power of the sealing driver 32 remains unchanged. It should be noted that the sealing driver 32 is a motor that can rotate forward and reverse, such as a DC motor; the sealing driver 32 that can rotate forward and reverse can control the sealing lifting module 31 to move up and down.

[0040] When the door needs to be closed, the door leaf 1 is pulled to the closed position, and the sealing driver 32 is controlled to drive the sealing lifting module 31 to rise. Figure 1 、 Figure 3 As shown, when the sealing lifting module 31 is raised, it abuts the bottom surface of the door leaf 1. To further enhance the sealing effect, a second magnetic strip 11 and a first magnetic strip 312 of opposite polarity are added to the bottom surface of the door leaf 1 where they abut the sealing lifting module 31. The first magnetic strip 312 is positioned at the top of the sealing lifting module 31, and the second magnetic strip 11 is positioned at the bottom surface of the door leaf 1. The first magnetic strip 312 and the second magnetic strip 11 are positioned vertically opposite each other. When the sealing lifting module 31 is raised into position, the first magnetic strip 312 and the second magnetic strip 11 are magnetically attracted to each other, firmly adhering to the bottom surface of the door leaf 1 and further enhancing the sealing effect.

[0041] When the door needs to be opened, the sealing driver 32 must be controlled to drive the sealing lifting module 31 to descend, so that the sealing lifting module 31 is retracted into the accommodating cavity 36 of the lower frame 35 of the sealing device 3. Figure 2 and Figure 3 As shown, at this point, the sealing lifting module 31 is already away from the bottom surface of the door leaf 1, thus preventing the problem of damage to the internal structure of the sealing device 3 due to friction between the bottom surface of the door leaf 1 and the bottom surface of the sealing lifting module 31 when the door leaf 1 is pushed open. It should be noted that the accommodating cavity 36 of the sealing device 3 has a built-in power supply, or the sealing device 3 drives the sealing driver 32 via an external power supply.

[0042] After the sealing lifting module 31 has been used, it is inevitable that there will be water accumulated on the ground 5 or eggs of cockroaches, mosquitoes, etc. remaining in the accommodating cavity 36 of the lower frame 35 of the sealing device 3. In order to avoid the growth of bacteria in the accommodating cavity 36 of the lower frame 35 of the sealing device 3, an ultraviolet light strip 34 for disinfection is specially installed inside the accommodating cavity 36 of the lower frame 35 of the sealing device 3. By turning on the ultraviolet light strip 34, the sealing lifting module 31 and the accommodating cavity 36 of the lower frame 35 of the sealing device 3 are sterilized.

[0043] like Figure 1-4 As shown, the sealing lift module 31 is generally in an inverted L-shape and comprises a connected horizontal portion and a vertical portion. The horizontal portion is adapted to engage with the bottom surface of the door leaf 1, with a first magnetic strip 312 mounted on its top surface. The vertical portion is adapted to mount a rack 311, which engages with the second transmission wheel assembly 43. When the sealing actuator 32 is in operation, the rack 311 drives the sealing lift module 31 to move upward and downward. The sealing lift module 31 can be made of metal, such as aluminum alloy.

[0044] A boss 33 is provided in the inner cavity of the sealing device 3, facing the rack 311, and the length of the boss 33 plus the width of the vertical portion is adapted to the opening width of the sealing device 3. The boss 33 is used to support the horizontal portion of the sealing lifting module 31.

[0045] To enhance the sealing performance of the entire sealing device 3 and prevent water from seeping in and damaging the internal structure, a boss 33 is provided on the sidewall of the accommodating cavity 36 of the lower frame 35 of the sealing device 3, and a sealing strip 313 is provided on the mating surface between the sealing lifting module 31 and the boss 33. A UV light strip 34 is disposed below the boss 33.

[0046] In some examples, the sealing strip 313 is provided at the bottom of the horizontal portion. When the sealing lifting module 31 is lowered into position, the sealing strip 313 abuts the boss 33. In other examples, the sealing strip 313 is provided on the boss 33. When the sealing lifting module 31 is lowered into position, the sealing lifting module 31 abuts the sealing strip 313. Of course, it is not ruled out that the sealing strip 313 is provided on both the boss 33 and the sealing lifting module 31.

[0047] When the sealing driver 32 drives the sealing lifting module 31 to descend and retract into the accommodating cavity 36 of the lower frame 35, the sealing strip 313 is compressed, thereby improving the sealing performance of the sealing device 3. It can be explained that the sealing strip 313 is made of elastic rubber and can prevent the intrusion of rainwater, air, sand and dust.

[0048] The sliding door provided in this embodiment is installed by means of a hanging rail 21. Specifically, the hanging rail 21 is provided at the top of the door frame 2, and the door leaf 1 is slidably connected to the hanging rail 21 via a hanging member 22. Since the lower rail 24 of a conventional hanging sliding door only has a positioning wheel for positioning, but the positioning wheel only has a guiding function and does not have a swing-proof function, the hanging sliding door is prone to shaking and colliding during the pushing and pulling process. In order to solve the shaking problem of the hanging sliding door, in this embodiment, a lower pulley 12 is provided at the bottom of the door leaf 1, and a lower rail 24 is provided at the bottom of the door frame 2 to match the lower pulley 12. Figure 2 、 Figure 4 As shown, during installation, the height position of the lower pulley 12 is adjusted so that the lower pulley 12 and the lower rail 24 form a good fit. The lower pulley 12 is provided with a groove, which cooperates with the raised lower rail 24 and can effectively reduce the shaking of the door leaf 1 when it is pushed.

[0049] In this embodiment, the lower frame 35 is provided with a cover plate, which covers the lower frame 35 and is located above the sealing driver 32 and the transmission assembly 4. A lower rail 24 is provided on the upper surface of the cover plate. The lower rail 24 is located on one side of the sealing lift module 31, and the sealing strip 313 is located on the opposite side of the sealing lift module 31. Both the sealing strip 313 and the lower rail 24 extend along the direction of movement of the door leaf 1.

[0050] In order to push and pull the door leaf 1 more effortlessly, Figure 5 As shown, a door leaf drive device is mounted on the hanging rail 21, and is used to drive the door leaf 1 to move linearly along the hanging rail 21 and the lower rail 24. It is understood that the door leaf drive device includes a belt drive structure and a door leaf drive motor 23. The door leaf drive motor 23 can drive the belt drive structure to operate, and the top of the door leaf 1 can be fixedly connected to the belt in the belt drive structure through a belt clamp. Therefore, the door leaf drive device can drive the door leaf 1 to slide along the hanging rail 21.

[0051] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A sliding door, characterized in that: It comprises a door leaf (1) and a door frame (2) with a sealing device (3) provided at the bottom; the door leaf (1) is assembled on the door frame (2); The sealing device (3) comprises a sealing lifting module (31) and a sealing driver (32) for driving the sealing lifting module (31) to be close to or away from the bottom surface of the door leaf (1).

2. The sliding door according to claim 1, characterized in that: The sealing lifting module (31) is connected to the sealing driver (32) via a transmission assembly (4).

3. The sliding door according to claim 2, characterized in that: The sealing lifting module (31) is provided with a rack (311); the output end of the sealing driver (32) is connected to the rack (311) via the transmission assembly (4) and drives the sealing lifting module (31) to perform lifting motion.

4. The sliding door according to claim 3, characterized in that: The transmission assembly (4) includes a reducer module (41), a first transmission wheel assembly (42), a second transmission wheel assembly (43) and a flexible transmission member (44); The output end of the sealing driver (32) is connected to the input end of the reducer module (41), the output end of the reducer module (41) is engaged with the first transmission wheel assembly (42), the first transmission wheel assembly (42) is connected to and drives the second transmission wheel assembly (43) through the flexible transmission member (44), and the second transmission wheel assembly (43) is engaged with the rack (311).

5. The sliding door according to claim 4, characterized in that: The flexible transmission member (44) is a belt, the first transmission wheel assembly (42) and the second transmission wheel assembly (43) both include a pulley and a transmission gear, the pulley and the transmission gear are coaxially connected, and the belt is wound between the two pulleys.

6. The sliding door according to claim 1, characterized in that: A first magnetic strip (312) is provided on the top of the sealing lifting module (31), and a second magnetic strip (11) having a polarity opposite to that of the first magnetic strip (312) is provided on the bottom surface of the door leaf (1). When the sealing lifting module (31) rises to its position, the first magnetic strip (312) and the second magnetic strip (11) are magnetically attracted to each other.

7. The sliding door according to claim 1, characterized in that: The sealing device (3) further comprises a lower frame (35), the lower frame (35) being provided with an accommodating cavity (36) with an opening facing upward, the sealing driver (32) and the sealing lifting module (31) being arranged in the accommodating cavity (36), the sealing driver (32) being configured to drive the sealing lifting module (31) to extend upward out of the accommodating cavity (36) to be in close contact with the door leaf (1), and to drive the sealing lifting module (31) to retract downward into the accommodating cavity (36), the side wall of the accommodating cavity (36) being provided with a boss (33), and the mating surface between the sealing lifting module (31) and the boss (33) being provided with a sealing strip (313).

8. The sliding door according to claim 7, characterized in that: An ultraviolet light strip (34) for disinfection is provided below the boss (33), and the ultraviolet light strip (34) is provided in the accommodating cavity (36).

9. The sliding door according to claim 1, wherein: A hanging rail (21) is provided on the top of the door frame (2); the door leaf (1) is slidably connected to the hanging rail (21) via a hanging member (22).

10. The sliding door according to claim 9, characterized in that: The hanging rail (21) is provided with a door leaf driving device for driving the door leaf (1) to move; and / or, a lower pulley (12) is provided at the bottom of the door leaf (1), and a lower rail (24) that cooperates with the lower pulley (12) is provided at the bottom of the door frame (2).

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