Sliding door

Abstract

The invention relates to a sliding door. The sliding door comprises a rack and a door body installed on the rack in a sliding mode through a sliding supporting piece, and the door body is provided with a cavity. The mold cavity is provided with an opening for the sliding supporting piece to penetrate through, and the sliding supporting piece is connected with the rack and is locked in the mold cavity to slide; the sliding supporting piece comprises a bearing wheel and a guide wheel which are accommodated in the cavity, and the sliding supporting piece is in sliding contact with the top wall of the cavity through the bearing wheel and is used for supporting the door body to be longitudinally stressed; and the sliding support piece is in sliding contact with the side wall of the cavity through the guide wheel and is used for laterally guiding the door body. According to the embodiment of the invention, the working procedures of the sliding door installation site can be simplified.

Description

[0001] This application is a divisional application of the patent application filed on January 23, 2020, with application number 202010076826.1 and invention title "A sliding door and a sliding door assembly method". Technical Field

[0002] This application relates to the field of electric door technology, specifically to a sliding door. Background Technology

[0003] Sliding doors are a common type of door installed at the entrance of businesses, factories, residential communities, and other similar locations.

[0004] Currently, a type of sliding door consists of independent, separate components. During transportation, these components need to be assembled and packaged individually; during installation, ground positioning, digging, pre-embedding, and cement pouring are required; and during later maintenance, disassembly is inconvenient. Therefore, it suffers from high labor costs, complex procedures, and inconvenience in installation and maintenance. Summary of the Invention

[0005] To overcome the problems existing in related technologies, this application provides a sliding door that simplifies the installation process and makes disassembly and assembly more convenient.

[0006] According to an embodiment of this application, a sliding door is provided, comprising: The frame and the door body slidably mounted on the frame via sliding supports, the door body having a cavity; The cavity has an opening for the sliding support to pass through, and the sliding support is connected to the frame and locked within the cavity for sliding. The sliding support includes a load-bearing wheel and a guide wheel housed within the cavity. The sliding support slides in contact with the top wall of the cavity via the load-bearing wheel to support the longitudinal force on the door body. The sliding support slides in contact with the side wall of the cavity via the guide wheel to guide the door body laterally.

[0007] In one embodiment, the sliding support includes a base plate, on which a longitudinally arranged support seat is fixed; a pulley mounting plate is provided on the support seat, and the middle part of the pulley mounting plate is rotatably connected to the support seat, so that the pulley mounting plate can swing longitudinally; the load-bearing wheel and the guide wheel are respectively disposed at both ends of the pulley mounting plate.

[0008] In one embodiment, a sliding connector is further included, the sliding connector comprising a fixed connecting end and a sliding connecting end; The sliding connection end is provided with a guide wheel link, and the guide wheel link is provided with at least two load-bearing wheels and two sets of lateral guide wheels; wherein a load-bearing wheel is provided at each end of the guide wheel link, and a set of lateral guide wheels is provided at the adjacent part of each load-bearing wheel.

[0009] In one embodiment, the diameter of the lateral guide wheel is greater than the width of the load-bearing wheel and also greater than the width of the guide wheel connecting rod.

[0010] In one embodiment, it further includes: First sliding support and second sliding support; The first sliding support is configured to support the door body at least in the longitudinal direction, and the second sliding support is configured to support the door body in at least one of the lateral and longitudinal directions. The second sliding support and the first sliding support are spaced apart in the sliding direction of the door body and are integrally assembled with the first sliding support via a connector. The connector includes a connecting strip connecting the first sliding support and the second sliding support.

[0011] In one embodiment, the door includes a first door and a second door, the second door being driven and linked by the first door through a ring mechanism; the second door slides and is supported on the first door in the longitudinal direction, forming a suspended operation; wherein, in the open state, the front end of the second door is higher than the rear end to compensate for the longitudinal deformation in the closed state.

[0012] In one embodiment, the annular mechanism includes a transmission belt, a first pulley, and a second pulley; the transmission belt is wound around the first pulley and the second pulley and fixed to a connecting plate connected to the door body; wherein the first pulley and the second pulley are elastically connected to the door body through a tensioning device, and the tensioning device is used to keep the transmission belt taut.

[0013] In one embodiment, it further includes: First sliding connector and second sliding connector; The sliding connection end of the first sliding connector is locked inside the cavity of the second door body, and the sliding connection end of the second sliding connector is locked inside the cavity of the first door body.

[0014] In one embodiment, the inner wall of the cavity includes a top wall, a bottom wall, and two side walls connecting the top wall and the bottom wall, wherein the bottom wall or side wall is provided with an opening for a sliding support to pass through.

[0015] In one embodiment, the system further includes a third sliding support member and a fourth sliding support member spaced apart from the third sliding support member in the sliding direction of the door body; the third sliding support member and the fourth sliding support member slidably support the door body in a locking manner on one side of the door body, or slidably support the door body on both sides of the door body; The frame includes a first bracket and a second bracket. A first sliding support and a third sliding support are integrally assembled on the first bracket, and a second sliding support and a fourth sliding support are integrally assembled on the second bracket. The first sliding support and the second sliding support are integrally connected by a connector.

[0016] In some embodiments of this application, before installing the sliding door, a first sliding support and a second sliding support are integrally assembled onto a frame; and the door body is slidably installed onto the frame, such that the first sliding support supports the door body longitudinally, and the second sliding support supports the door body in one of the lateral and longitudinal directions. This method simplifies the on-site installation process for sliding doors.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0019] Figure 1 This is a schematic diagram of the overall structure of a sliding door according to an exemplary embodiment of this application; Figure 2 yes Figure 1 A schematic diagram of the rear view structure of the sliding door; Figure 3 yes Figure 1 A schematic diagram of the right-side structure of the sliding door; Figure 4 yes Figure 1 A partial structural diagram of a sliding door, showing the frame and some supporting structures; Figure 4A yes Figure 4 A schematic diagram of the right-side structure, which also shows the first door body; Figure 4B yes Figure 4A A magnified view of a section at point e in the middle; Figure 4C yes Figure 4A A magnified view of a portion at point f. Figure 4D yes Figure 4 The diagram shows the on-site installation structure of the sliding door, including the first door body. Figure 5 yes Figure 1 A partial sectional view of the gantry frame of the sliding door; Figure 6 yes Figure 4 An enlarged view of the sliding support 510 shown; Figure 7 yes Figure 4 An enlarged view of the sliding support 540 shown; Figure 8 yes Figure 2 The left view of the sliding door is shown; Figure 8A yes Figure 8 Enlarged view of point A1 in the middle; Figure 8B yes Figure 8 Enlarged view of point B1; Figure 9 yes Figure 2 The right view of the sliding door is shown; Figure 9A yes Figure 9 Enlarged view of point A2 in the middle; Figure 9B yes Figure 9 Enlarged view of point B2; Figure 10 yes Figure 1 The diagram shown is a top view of the sliding door in the open position. Figure 11 yes Figure 1 The diagram shown is a top view of the sliding door in the closed position. Figure 12A Show Figure 9 A schematic diagram of an optional structure of the sliding connector 309 in the diagram; Figure 12B Show Figure 12A The main view of the sliding connector in the middle; Figure 12C Show Figure 12A A top view of the sliding connector in the middle; Figure 13 Show Figure 12A A schematic diagram of the sliding connection end of the sliding connector rotating clockwise; Figure 14 Show Figure 12A A schematic diagram showing the counterclockwise rotation of the sliding connection end of the sliding connector in the diagram; Figure 15 Show Figure 9A front view of an optional structure of the sliding connector 319 in the middle; Figure 16 Show Figure 15 A top view of the sliding connector in the middle; Figure 17 Show Figure 15 A three-dimensional structural diagram of the sliding connector in the diagram; Figure 18 Show Figure 15 A schematic diagram of the sliding connection end of the sliding connector rotating clockwise; Figure 19 Show Figure 15 A schematic diagram showing the counterclockwise rotation of the sliding connection end of the sliding connector in the diagram; Figure 20 Show Figure 1 A cross-sectional view of the first door body of the sliding door shown, in which the annular mechanism H is shown; Figure 21 According to Figure 1 A three-dimensional structural diagram of a ring mechanism for a sliding door; Figure 21A yes Figure 21 A magnified view of a portion of point A in the middle; Figure 21B yes Figure 21 A magnified view of a portion of point B in the middle; Figure 21C yes Figure 21A A magnified view of a portion of point C in the middle; Figure 22A yes Figure 1 A top view of a sliding door in the open position; Figure 22B yes Figure 22A A schematic diagram of the corresponding ring-shaped mechanism; Figure 22C yes Figure 1 A top view of a sliding door in the closed position; Figure 22D yes Figure 22C A schematic diagram of the corresponding ring-shaped mechanism; Figure 23A and Figure 23B Provided by Figure 31 A structural configuration diagram of sliding connector 309 and sliding connector 310 in the embodiments; Figure 24 This diagram illustrates the positional relationship between the first and second doors of a sliding door in the open state, according to an exemplary embodiment of this application. Figure 25A and Figure 25B in accordance with Figure 31Another structural configuration diagram of sliding connector 309 and sliding connector 310 in the embodiment; Figure 26 A perspective structural schematic diagram of a sliding connector 319 according to another embodiment of this application is shown; Figure 27 Show Figure 26 A partially exploded structural diagram of the sliding connector in the diagram; Figure 28 Show Figure 26 The main view of the sliding connector in the middle; Figure 29 This invention illustrates a sliding connector that can be used at the top of a sliding door according to another embodiment of this application; Figure 30 A schematic diagram of the structure of a sliding door according to another embodiment of this application is shown; Figure 31 A perspective structural schematic diagram of a sliding connector 309 according to another embodiment of this application is shown; Figure 32 Show Figure 31 A partially exploded structural diagram of the sliding connector in the diagram; Figure 33 A perspective structural schematic diagram of a sliding connector 309 according to another embodiment of this application is shown; Figure 34 yes Figure 33 The front view of the sliding connector shown; Figure 35 yes Figure 33 A top view of the sliding connector shown; Figure 36 This is a three-dimensional structural schematic diagram of another sliding connector 309 according to an embodiment of this application; Figure 37 yes Figure 36 The front view of the sliding connector shown; Figure 38 yes Figure 36 A top view of the sliding connector shown; Figure 39 This diagram shows a partial structural diagram of a sliding door according to another embodiment of the present application; Figure 40 yes Figure 39 Enlarged view at point d; Figure 41 This diagram shows a partial structural diagram of a sliding door according to another embodiment of the present application; Figure 42 Show Figure 41 Partial structure of the sliding door in the middle; Figure 43 This diagram shows a partial structural schematic of a sliding door according to another embodiment of the present application; Figure 44 This diagram shows a partial structural schematic of a sliding door according to another embodiment of the present application; Figure 45 yes Figure 44 A top view of the sliding door in the open position; Figure 46 yes Figure 44 A top-view structural diagram of a sliding door in the closed position. Detailed Implementation

[0020] Preferred embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0021] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0022] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0024] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0026] For ease of understanding and explanation, in this article, such as Figure 1 As shown, the direction of movement of the door is called the horizontal, the height direction is called the vertical, and the thickness direction is called the lateral. Furthermore, the end of the door that is forward along the closing direction is called the front end, and the end that is backward is called the rear end. For example, in... Figure 2 In the middle, when the second door 200 moves to the right, it closes; when it moves to the left, it opens. The right end of the second door 200 can be called the front end, and the left end can be called the rear end. The definitions of the front end and rear end of the first door 100 are the same.

[0027] Figure 1 This is a schematic diagram of the overall structure of a sliding door according to an exemplary embodiment of this application. Figure 2 yes Figure 1 A rear view structural diagram of the sliding door. Figure 3 yes Figure 1 A schematic diagram of the right-side structure of the sliding door; Figure 4 yes Figure 1 A partial structural diagram of a sliding door, showing the frame and some supporting structures. Figure 4A yes Figure 4 A schematic diagram of the right-side structure, which also shows the first door body. Figure 4B yes Figure 4A A magnified view of a portion at point e. Figure 4C yes Figure 4A A magnified view of a section at point f. (Refer to...) Figures 1 to 4C The sliding door provided in this embodiment includes a frame, a first door body 100, a motor 400 connected to the first door body 100, and a second door body 200 driven by the first door body 100. The motor 400 (see [reference needed]) Figure 5 When the first door 100 is slid, it can drive the second door 200 in conjunction. The frame includes a gantry 700 and a column 650. The first door 100 can be driven by a transmission mechanism, such as a ring mechanism H (see [reference]). Figure 20 and Figure 21The first door 100 is slidably supported on the second door 200, enabling its suspended operation. This eliminates the need for pre-embedded guide rails in the ground, facilitating installation and improving stability. Two sliding connectors 309 and 310 can be installed at the bottom longitudinally between the first door 100 and the second door 200 (see [reference]). Figure 3 , Figure 8 and Figure 9 And two sliding connectors 319 and 320 are set at the top longitudinally to realize the connection between the doors (see also...). Figure 3 , Figure 8 and Figure 9 In the open state, the first door body 100 and the second door body 200 essentially overlap each other. When the motor 400 drives the first door body 100 to move, the first door body 100 drives the connected second door body 200 to slide forward relative to the first door body 100 through a transmission mechanism, such as a ring mechanism H. The overlap between the first door body 100 and the second door body 200 gradually decreases. When the first door body 100 and the second door body 200 reach the closed state, the overlap between the first door body 100 and the second door body 200 becomes minimal, at which point the closing width is maximum. In this way, after the first door body 100 and the second door body 200 are connected, they can be linked through the ring mechanism H. When the door is open, the two door bodies essentially overlap each other, which reduces the door body retraction space; when the door is closed, the overlap between the two door bodies is minimal, which increases the closing width.

[0028] See Figure 2 The first door body 100 and the second door body 200 are arranged in parallel. The first door body 100 includes a door body slide rod 180 disposed at the bottom longitudinal direction and a door body slide rod 110 disposed at the top longitudinal direction. The door body slide rod 180 can serve as a support beam for the first door body 100. The door body slide rods 110 and 180 extend along the movement direction of the first door body 100. A plurality of longitudinal connecting columns 230 are provided between the door body slide rods 180 and 110 of the first door body 100. The second door 200 includes a door slide rod 181 located at the bottom longitudinally and a door slide rod 210 located at the top longitudinally. The door slide rod 181 can serve as a support beam for the second door 200. The door slide rods 181 and 210 extend along the direction of movement of the second door 200. A plurality of longitudinal connecting columns 230 are provided between the door slide rods 181 and 210 of the second door 200. The connecting columns 230 are arranged at intervals in the transverse direction.

[0029] Figure 5 yes Figure 1 A partial sectional view of the gantry frame of the sliding door. (Refer to...) Figure 5The first door 100 is driven by a motor 400 via a gear 410. The motor 400 is fixed on the gantry frame 700 and relative to the ground. A rack 140 is fixedly installed on the door slide rod 180 of the first door 100. The rack 140 is arranged along the length direction (i.e., transverse) of the door slide rod 180. The gear 410 at the output end of the motor 400 and the rack 140 on the door slide rod mesh with each other to transmit power, thereby driving the first door 100 to run. It should be noted that in some other embodiments, the motor 400 can also be installed on the door slide rod 180 of the first door 100, and the rack 140 can be fixed to the ground; other transmission methods can also be used, such as friction wheel transmission. This application does not limit the transmission method of the motor 400 and the first door 100.

[0030] See Figure 4 The frame includes a first support and a second support spaced laterally from the first support. The first support is a gantry 700, and the second support is a column 650. Sliding supports 510 and 530 are longitudinally spaced and integrally assembled to the first support, while sliding supports 520 and 540 are longitudinally spaced and integrally assembled to the second support. Sliding supports 510 and 520, located at the longitudinal bottom of the first door 100, are connected as one unit by a connector 940. The first door 100 is slidable relative to the frame under the support of the sliding supports 510 and 520 at the longitudinal bottom and the sliding supports 530 and 540 at the longitudinal top.

[0031] Figure 6 yes Figure 4 An enlarged view of the sliding support 510 shown. (Refer to...) Figure 4 and Figure 6 In this embodiment, sliding support 510 and sliding support 520 are fixed relative to the ground. The installation method is described using sliding support 510 as an example. Sliding support 510 includes a base plate 515, on which a longitudinally arranged support seat 511 is fixed. Sliding support 510 is fixedly installed on the ground via the base plate 515. A pulley mounting plate 514 is provided on the support seat 511. Sliding support 510 includes two sets of load-bearing wheels 512 and two sets of guide wheels 513, which are respectively installed at both ends of the pulley mounting plate 514. The middle part of the pulley mounting plate 514 is rotatably connected to the support seat 511. When the pulley mounting plate 514 swings longitudinally, it ensures that at least one set of load-bearing wheels slides to support the first door body 100, making the first door body 100 run more smoothly.

[0032] Continue to refer to Figure 5 and Figure 6In this embodiment, the bottom of the door slide rod 180 of the first door body 100 forms a cavity 111. The cavity 111 extends in the length direction of the door slide rod 180. The bottom of the cavity 111 has an opening for the support seat 511 to pass through. The pulley group of the sliding support member 510 and the pulley group of the sliding support member 520 are housed in the cavity 111. The cavity 111 has a limiting effect on the pulley groups of the sliding support members 510 and 520, which can prevent the pulley groups of the sliding support members 510 and 520 from disengaging from the cavity 111, thereby locking the pulley groups of the sliding support members 510 and 520 in the cavity 111 and allowing them to slide.

[0033] In this application, "locking" refers to restricting the degree of freedom of the door, so that the door can only move in its sliding direction.

[0034] Figure 5 and Figure 6 The cooperation relationship between the sliding support 510 and the cavity 111 is described using the sliding support 510 as an example. The inner wall of the cavity 111 includes a top wall, a bottom wall, and two side walls connecting the top wall and the bottom wall. The opening is located in the middle of the bottom wall. The sliding support 510 includes two sets of load-bearing wheels 512 and two sets of guide wheels 513. The two sets of load-bearing wheels 512 of the sliding support 510 abut against the top wall and the bottom wall of the cavity 111 and slide in contact with the top wall and the bottom wall of the cavity 111 to achieve longitudinal support for the first door body 100. The two sets of guide wheels 513 slide in contact with the two side walls of the cavity 111 to achieve lateral limitation of the first door body 100. With this configuration, the sliding support 510 slides against the inner wall of the cavity 111 via the load-bearing roller 512 and guide roller 513, allowing the first door 100 to slide more smoothly on the sliding support 510. This improves the smoothness of the sliding and reduces operating noise. It should be noted that the cooperation between the sliding support 520 and the cavity 111 can be found in the description of the cooperation between the sliding support 510 and the cavity 111, and will not be repeated here. The pulley groups of the sliding support 510 and the sliding support 520 are locked together within the cavity 111. This configuration prevents the pulley groups from being exposed, achieving a concealed pulley system and improving the appearance of the sliding door.

[0035] Sliding supports 530 and 540 are provided between the frame and the longitudinal top of the first gate 100. Specifically, sliding support 530 is provided between the gantry 700 and the longitudinal top of the first gate 100, and sliding support 540 is provided between the column 650 and the longitudinal top of the first gate 100. Sliding supports 530 and 540 may have the same structure. Figure 7 yes Figure 4 The enlarged view of the sliding support 540 shown is illustrated below. Taking the sliding support 540 as an example, refer to... Figure 7The sliding support 540 may include a connecting arm 324, and a fixed connecting end 321 and a sliding connecting end 322 respectively disposed at both ends of the connecting arm 324. The sliding connecting end 322 is provided with at least one guide wheel 323. It is understood that in some embodiments, the sliding support 530 and the sliding support 540 may have different structures.

[0036] Refer to together Figures 4A to 4C A cavity 113 is formed on the side of the first door body 100 opposite to the sliding supports 530 and 540. The cavity 113 includes a top wall, a bottom wall, and two side walls. One side wall of the cavity 113 has an opening for the connecting arm 324 to pass through. The fixed connecting end 321 of the sliding support 540 is fixedly connected to the column 650, and the sliding connecting end 322 extends into the cavity 113 from the opening and locks into the cavity 113. The cavity 113 has a limiting function for the sliding connecting end 322, preventing the sliding connecting end 322 from disengaging from the cavity 113, thereby locking the sliding connecting end 322 of the sliding support 540 into the cavity 113 to support the sliding of the first door body 100. The guide wheel 323 of the sliding connecting end 322 of the sliding support 540 is restricted between the two side walls of the cavity 113 and slides in contact with the side walls. With this configuration, the sliding support 540 can be locked onto one side of the longitudinal top of the first door 100 to provide guiding support when the first door 100 slides. Similarly, the fixed connection end of the sliding support 530 can be fixed to a side beam 740 of the gantry 700, and the sliding connection end can be locked into the cavity 113 of the first door 100 to support the sliding of the first door 100.

[0037] In this embodiment, four sliding connection points are formed between the frame and the first door 100 through sliding supports 510 and 520, and sliding supports 530 and 540. Setting four sliding connection points provides more stable support for the sliding of the first door 100 relative to the frame in both longitudinal and lateral directions, thus better ensuring the stability of the first door 100 installation. It is understood that this application does not limit the number of sliding connection points; more than four sliding connection points can be set on the frame to provide sliding support for the first door 100. After the sliding supports 510 and 520 provide longitudinal support for the first door 100, the sliding supports 530 and 540 no longer bear the weight of the first door 100. Therefore, the sliding connection ends 322 of the sliding supports 530 and 540 can only be provided with guide wheels 323 that slide in contact with the sidewall of the cavity 113. This design simplifies the structure of sliding supports 530 and 540, making it easier to assemble the first door 100 onto the frame 700. The first door 100 includes a door slide rod 180 located at the lower part of the first door 100 and a door slide rod 110 located at the upper part of the first door 100. A cavity 111 is located within the door slide rod 180 at the bottom of the first door 100, and a cavity 113 is located within the door slide rod 110 at the top of the first door 100. By fully utilizing the internal structure and space of the first door 100, the sliding supports 510, 520 and 530, 540 are concealed, resulting in better structural stability and improved aesthetics of the sliding door.

[0038] Figure 4D yes Figure 4 The diagram shows the on-site installation structure of the sliding door. Please refer to it as well. Figure 4 and Figure 4D In this embodiment, sliding support 510 and sliding support 520 can be assembled into one unit via connector 940, sliding support 520 and sliding support 540 can be assembled into one unit with column 650, and gantry frame 700, sliding support 510 and sliding support 530 can be assembled into one unit. The base plate 515 of sliding support 510 (see...) Figure 4C The sliding door 100 and gantry 700 are fixedly installed on the fixed plate 730, and the base plate 515 and column 650 of the sliding support 520 are fixedly installed on the fixed plate 731. The first door 100 is assembled to the sliding supports 510, 520 and 530, forming a complete assembly structure for the sliding door, which is then packaged and transported. At the installation site, the integrated door body only needs to be placed in the desired installation position, and the fixed plates 730 and 731 are fixed to the ground with chemical anchors or expansion bolts to fix the entire sliding door to the ground. Therefore, the installation process is simple, convenient and quick.

[0039] Figure 8 yes Figure 2 The left view of the sliding door shown is shown. Figure 9 yes Figure 2 The right view of the sliding door is shown. See also... Figure 8 and Figure 9 Two sliding connectors 309 and 310 are provided at the bottom longitudinal direction and two sliding connectors 319 and 320 are provided at the top longitudinal direction between the first door body 100 and the second door body 200, thus connecting the first door body 100 and the second door body 200. The two sliding connectors 309 and 310 have the same structure, the two sliding connectors 319 and 320 have the same structure, while the sliding connectors 310 and 320 have different structures. In this embodiment, the second door body 200 is only supported by the first door body 100. After the first door body 100 and the second door body 200 are connected, the sliding connectors 309 and 310 at the bottom longitudinal direction provide longitudinal support for the second door body 200, achieving a suspended installation of the second door body 200. The second door body 200 slides and is supported on the first door body 100 in the longitudinal direction, achieving a suspended operation of the second door body 200. This eliminates the need for pre-embedded guide rails in the ground, making installation convenient and performance more stable. It should be noted that the sliding connectors 319 and 320 may have the same structure as, but are not limited to, the aforementioned sliding support 530 and sliding support 540.

[0040] Figure 8 yes Figure 2 The left view of the sliding door shown is shown. Figure 8A yes Figure 8 Enlarged diagram at point A1 in the middle. Figure 8B yes Figure 8 Enlarged diagram at point B1, Figure 9 yes Figure 2 The right view of the sliding door shown. Figure 9A yes Figure 9 Enlarged diagram at point A2 in the middle. Figure 9B yes Figure 9 Enlarged view of section B2. (See attached diagram) Figures 8-9B The first door body 100 has a cavity 112 at its longitudinal bottom sliding rod 180, extending along the length of the sliding rod 180 and located above cavity 111. The first door body 100 also has a cavity 114 at its longitudinal top sliding rod 110, extending along the length of the sliding rod 110. Cavity 114 can be positioned opposite cavity 113. The second door body 200 has a cavity 411 at its longitudinal bottom sliding rod 181, extending along the length of the sliding rod 181. The second door body 200 has a cavity 412 at its longitudinal top sliding rod 210, extending along the length of the sliding rod 210. Both cavities 112 and 411 have openings, and their openings are substantially opposite to each other. Similarly, both cavities 114 and 412 have openings, and their openings are substantially opposite to each other.

[0041] Figure 10 yes Figure 1 The diagram shown is a top view of the sliding door in the open position. Figure 11 yes Figure 1 The diagram shown is a top view of the sliding door in the closed position. (See attached image.) Figures 8 to 11 For example, see Figure 8A The sliding connection end 312 of the sliding connector 310 extends into and locks into the cavity 112 of the first door body 100 through the opening, and the fixed connection end 311 extends into and is fixed into the cavity 411 of the second door body 200 through the opening; see also Figure 9A The sliding connection end 312 of the sliding connector 309 extends into and locks into the cavity 411 of the second door body 200 through the opening, while the fixed connection end 311 extends into and is fixed into the cavity 112 of the first door body 100 through the opening; see also Figure 8B The sliding connection end 322 of the sliding connector 320 extends into and locks into the cavity 114 of the first door body 100, while the fixed connection end 321 is fixed to the rear end of the second door body 200; see also Figure 9B The sliding connection end 322 of the sliding connector 319 extends into and locks into the cavity 412 of the second door body 200, and the fixed connection end 321 is fixed to the front end of the first door body 100.

[0042] In this embodiment, the sliding connection end 312 of the sliding connector 309 is locked in the cavity 411 of the second door body to support the sliding of the second door body 200 relative to the first door body 100. The sliding connection end 312 of the sliding connector 310 is locked in the cavity 112 of the first door body 100 to support the sliding of the first door body 100 relative to the second door body 200. This configuration is referred to as the interlocking arrangement of the two sliding connectors. That is, in this embodiment, the first door body 100 and the second door body 200 are slidably connected at the bottom of the longitudinal direction by the two interlocking sliding connectors. Similarly, the sliding connection end 322 of the sliding connector 319 is locked in the cavity 412 of the second door body 200 to support the sliding of the second door body 200 relative to the first door body 100, and the sliding connection end 322 of the sliding connector 320 is locked in the cavity 114 of the first door body to support the sliding of the first door body 100 relative to the second door body 200. That is, the first door body 100 and the second door body 200 are also slidably connected at the top of the longitudinal direction by two interlocking sliding connectors.

[0043] The design of cavities 112, 114, 411, and 412 can effectively utilize the internal space and structure of the first door body 100 and the second door body 200, enabling the concealed installation of sliding connectors 309, 310, 319, and 320. This improves the appearance of the sliding door and better ensures the sliding stability of sliding connectors 309, 310, 319, and 320.

[0044] Figure 12A Show Figure 9 A schematic diagram of one optional structure of the sliding connector 309 in the diagram. Figure 12B Show Figure 12A The main view of the sliding connector in the middle. Figure 12C Show Figure 12A The sliding connector 309 is shown in top view. It includes two load-bearing wheels and two sets of side guide wheels.

[0045] See Figures 12A-12C The sliding connector 309 includes a fixed connecting end 311 and a sliding connecting end 312. The sliding connecting end 312 includes a guide wheel connecting rod 315, which is rotatably connected to the connecting arm 314. The guide wheel connecting rod 315 can swing longitudinally around the connecting arm 314. The guide wheel connecting rod 315 is rotatably connected to different load-bearing wheels 313 through different guide shafts 402. The load-bearing wheels 313 are used to support the longitudinal force of the door. That is, the guide wheel connecting rod 315 is provided with two or more guide shafts 402, and each guide shaft 402 is equipped with a load-bearing wheel 313 that supports the longitudinal force of the door. The axial direction of the load-bearing wheel 313 is parallel to the horizontal extension direction of the connecting arm 314; the radial plane of the load-bearing wheel 313 is parallel to the longitudinal connecting surface of the fixed connecting end 311 connecting the connecting arm 314. The fixed connecting end 311 and the sliding connecting end 312 are on an approximately horizontal plane, so that the sliding connector 309 can both laterally connect two door bodies and allow one door body to support the other connected door body. The guide wheel connecting rod 315 is rotatably connected to the connecting arm 314; the fixed connecting end 311 is fixedly connected to the connecting arm 314; the guide wheel connecting rod 315 of the sliding connecting end 312 also includes a lateral guide wheel 333, which can be used for lateral guidance support and adjustment of the lateral distance of the door body. The lateral guide wheel 333 is perpendicular to the axial direction of the load-bearing wheel 313. In this embodiment, the diameter of the lateral guide wheel 333 is larger than the width of the load-bearing wheel 313 and slightly larger than the width of the guide wheel connecting rod 315 (see...). Figure 12C This configuration allows the side guide wheels 333 to roll against the side wall of the cavity 112, thus adjusting the lateral distance of the door. Specifically, load-bearing wheels 313 can be installed at both ends of the guide wheel link 315, with side guide wheels 333 located adjacent to the load-bearing wheels 313 at the ends; or, side guide wheels 333 can be installed at both ends of the guide wheel link 315, with load-bearing wheels 313 located adjacent to the side guide wheels 333 at the ends.

[0046] In this embodiment, the load-bearing roller 313 can serve as the first guide member, providing support. The lateral guide roller 333 can serve as the second guide member, providing lateral guidance to the door. It should be noted that this embodiment uses either the first or second guide member as an example, but is not limited to this; a slider can also be used instead.

[0047] exist Figures 12A-12C In the middle, two load-bearing wheels 313 are rotatably connected to both ends of the guide wheel connecting rod 315 via guide shaft 402. The load-bearing wheels 313 can rotate on the guide shaft 402, and the axial directions of the guide shaft 402 and the load-bearing wheels 313 are parallel to the ground. The guide wheel connecting rod 315 is rotatably connected to one end of the connecting arm 314, and the connection point can be the middle of the guide wheel connecting rod 315. The fixed connection end 311 is fixedly connected to the other end of the connecting arm 314.

[0048] In one implementation, the part where the connecting arm 314 connects to the guide wheel connecting rod 315 can be a cylinder, and a hole can be opened in the guide wheel connecting rod 315. The hole is fitted onto the connecting arm 314, and the guide wheel connecting rod 315 rotates around the connecting arm 314.

[0049] The guide wheel connecting rod 315 and the guide shaft 402 can fix the load-bearing wheel 313 and the lateral guide wheel 333. The guide wheel connecting rod 315 is rotatably connected to the connecting arm 314. The guide wheel connecting rod 315 can swing around the connecting arm 314, which means that the load-bearing wheels 313 at both ends can rotate around the connecting arm 314. This can support the longitudinal force of the door and automatically adjust the longitudinal force of the door during operation, so that the force on the door is even and the door is more stable during operation. The fixed connection end 311 supports the entire sliding connector 310.

[0050] Two side guide wheels 333 can form a set, and there are two sets in total. The two side guide wheels 333 in the same set are connected by a connecting shaft 405. The two side guide wheels 333 are respectively installed at both ends of the connecting shaft 405, which is mounted on the guide wheel connecting rod 315. The guide wheel connecting rod 315 may have hollow positions, with the middle of the guide wheel connecting rod 315 as the dividing point. The two hollow positions are located on either side of the middle of the guide wheel connecting rod 315, and the connecting shafts 405 of the two sets of side guide wheels 333 are respectively installed in the hollow positions of the guide wheel connecting rod 315. In this embodiment, when the guide wheel connecting rod 315 is kept horizontal, the axial direction of the side guide wheels 333 and the connecting shaft 405 is perpendicular to the ground, while the radial direction is parallel to the ground. A load-bearing wheel 313 is provided at each end of the guide wheel connecting rod 315, and side guide wheels 333 are provided at the adjacent positions of the load-bearing wheels 313 at the left and right ends.

[0051] In this embodiment, by setting the side guide wheel 333, the door body has a lateral guiding function, which can keep the distance between the doors uniform during the operation of the door body, so that the distance between the doors remains as constant as possible during the operation of the door body, and prevent the door body from shaking and getting stuck during the operation.

[0052] The sliding connection end 312 is connected to one door body, and the fixed connection end 311 is connected to another adjacent door body. The fixed connection end 311 is fixedly connected to the bottom of the first door body 100, for example, to the door body slide rod 180 at the bottom of the first door body 100. The door body slide rod 180 may have an open cavity 112, and the fixed connection end 311 may be fixedly connected within the cavity 112 of the door body slide rod 180 to achieve a fixed connection with the first door body. The load-bearing wheel 313 and the side guide wheel 333 are slidably connected to the bottom of the second door body 200, for example, to the door body slide rod 181 at the bottom of the second door body 200. The bottom sliding rod 181 of the second door body 200 can be provided with an open cavity 411. Two load-bearing wheels 313 extend into the opening and lock into the cavity 411 of the sliding rod 181 in the second door body 200, sliding together. Two sets of four lateral guide wheels 333 also extend into the opening and lock into the cavity 411 of the sliding rod 181 in the second door body 200, sliding together to achieve a sliding connection with the second door body 200 and simultaneously support the longitudinal force of the second door body 200, so that the first door body 100 and the second door body 200 are connected to each other and can slide relative to each other. The cavity 411 can include a top wall, a bottom wall, and two side walls. The two load-bearing wheels 313 can be confined between the two side walls and roll between the top wall and the bottom wall. The four lateral guide wheels 333 can roll against the side walls of the cavity 411, providing lateral guidance for the second door body 200, which can reduce friction and noise.

[0053] For example, two load-bearing wheels 313 and four lateral guide wheels 333 are confined within the cavity 411 of the second door body 200, allowing them to roll along the cavity 411 in the running direction of the second door body 200. The two load-bearing wheels 313 provide longitudinal support to the second door body 200. The diameter of the two load-bearing wheels 313 is greater than the length of the connecting shaft 405, ensuring that the four lateral guide wheels 333 do not contact the top or bottom wall of the cavity 411, but rather roll against the side wall of the cavity 411, thus providing lateral guidance. The diameter of the lateral guide wheels 333 is greater than the width of the guide wheel connecting rod 315, preventing the load-bearing wheels 313 from contacting the side wall of the cavity 411. The two load-bearing wheels 313 provide longitudinal support for the second door body 200, while the two sets of four lateral guide wheels 333 guide the second door body 200, which can reduce friction, reduce noise, and make the relative sliding between the first door body 100 and the second door body 200 smoother.

[0054] It should be noted that, alternatively, the fixed connection end 311 can be fixedly connected to the bottom of the second door body 200, and the load-bearing wheel 313 and the side guide wheel 333 can be slidably connected to the bottom of the first door body 100. It should also be noted that, alternatively, the sliding connection end 312 and the fixed connection end 311 can be connected to the top of the door body.

[0055] This embodiment achieves concealed installation of the sliding connector 309 by installing the fixed connecting end 311, the load-bearing wheel 313, and the side guide wheel 333 into the cavity 411 at the bottom of a door body. This effectively utilizes space and makes the product's appearance simpler and more aesthetically pleasing. It should be noted that concealed installation can also be achieved by installing only the sliding connecting end 312 or only the fixed connecting end 311 into the cavity at the bottom of the door body. Alternatively, concealed installation can be achieved by installing only the sliding connecting end 312 or only the fixed connecting end 311 into the cavity at the top of the door body, or by installing both the sliding connecting end 312 and the fixed connecting end 311 into the cavities at the top of two adjacent door bodies.

[0056] Figure 13 Show Figure 12A A schematic diagram showing the clockwise rotation of the sliding connection end of the sliding connector in the diagram. Figure 14 Show Figure 12A A schematic diagram of the sliding connection end of the sliding connector rotating counterclockwise.

[0057] Please see Figure 13-14 When the second door 200 is in operation, the longitudinal force on the second door 200 will change, and the longitudinal force on the sliding connection end 312 connected to the bottom of the second door 200 will also change. Since the guide wheel connecting rod 315 of the sliding connection end 312 is rotatably connected to the connecting arm 314, the guide wheel connecting rod 315 can swing around the connecting arm 314, so that the sliding connection end 312 can rotate clockwise or counterclockwise, automatically adjusting the longitudinal force on the second door 200, making the longitudinal force on the door more uniform and the operation more stable.

[0058] See Figure 13 Because the right end bearing wheel 313 is under greater force, the bearing wheels 313 at both ends change from being horizontal and parallel to rotating clockwise around the connecting arm 314 and then rotating clockwise around the connecting arm 314 and then rotating upward, thereby automatically adjusting the longitudinal force on the door body to make the force even.

[0059] See Figure 14Because the left end load-bearing wheel 313 is under greater force, the load-bearing wheels 313 at both ends change from being horizontal and parallel to rotating counterclockwise around the connecting arm 314 and moving downwards longitudinally, while the right end load-bearing wheel 313 rotates counterclockwise around the connecting arm 314 and moving upwards longitudinally, thereby automatically adjusting the longitudinal force on the door body to make the force even.

[0060] In one embodiment, when the load-bearing wheels 313 at both ends of the guide wheel connecting rod 315 change the longitudinal force on the second door body 200, since the guide wheel connecting rod 315 is rotatably connected to the connecting arm 314, the middle part of the guide wheel connecting rod 315 is rotatably connected to the connecting arm 314, so that the guide wheel connecting rod 315 can swing around the connecting arm 314, thereby causing the two load-bearing wheels 313 at both ends of the guide wheel connecting rod 315 to also rotate longitudinally around the connecting arm 314 and keep sliding contact with the top or bottom wall of the cavity 411, thereby automatically adjusting the longitudinal force on the door body, making the longitudinal force on the door body uniform, and making the door body more stable during operation.

[0061] Figure 15 Show Figure 10 A front view of an optional structure of the sliding connector 319 in the middle. Figure 16 Show Figure 15 Top view of the sliding connector in the middle. Figure 17 Show Figure 15 A three-dimensional structural diagram of the sliding connector is shown. It is understood that the sliding connector 320 may adopt the same or different structure as the sliding connector 319.

[0062] See Figures 15 to 17 The sliding connector 319 includes a sliding connecting end 322 and a fixed connecting end 321. The sliding connecting end 322 and the fixed connecting end 321 are located at opposite ends of the connecting arm 324 and connected by the horizontally arranged connecting arm 324. The sliding connecting end 322 is equipped with a guide wheel 323 for adjusting the lateral force on the door body. The axial direction of the guide wheel 323 is perpendicular to the horizontal extension direction of the connecting arm 324; the radial plane of the guide wheel 323 is perpendicular to the longitudinal connecting surface of the fixed connecting end 321 connecting to the connecting arm 324. The fixed connecting end 321 and the sliding connecting end 322 are on approximately horizontal planes, thus enabling the sliding connector 319 to both guide and connect the two door bodies. The fixed connecting end 321 can also be called a guide wheel seat. The sliding connecting end 322, the fixed connecting end 321, and the connecting arm 324 can be configured as separate parts or as a single unit.

[0063] In one embodiment, the fixed connection end 321 can be designed with symmetrical mold opening. Taking the lateral movement direction of the door as a reference, when the fixed connection end 321 is installed on the door, it has a left-right symmetrical structure on the left and right sides along the lateral direction. By making the fixed connection end 321 a symmetrical structure, the sliding connector 319 provided in this embodiment can be installed on the door without being limited by the left-right or front-back fixing direction. That is, in one installation method, the fixed connection end 321 is connected to the first door 100 in the multi-door structure, and the sliding connection end 322 is connected to the adjacent second door 200 in the multi-door structure. In another installation method, the fixed connection end 321 is connected to the second door 200 in the multi-door structure, and the sliding connection end 322 is connected to the adjacent first door 100 in the multi-door structure. These two installation methods can be arbitrarily interchanged without being limited by the left-right fixing direction of the door installation. Furthermore, in different embodiments, when the fixed connection end 321 is connected to the door body, it can be installed at either the front or rear end of the door body; when the sliding connection end 322 is connected to the door body, it can be installed at either the front or rear end of the door body, without being limited by the front-back fixed direction of the door body. Therefore, by designing the fixed connection end 321 as a symmetrical molded structure, on-site installation is not limited by the left-right or front-back fixed direction, making installation more convenient; in addition, this design also reduces the material of the sliding connector 319, making it easier to manufacture, reducing manufacturing costs and improving manufacturing efficiency.

[0064] See Figure 15 and Figure 17 In one embodiment, the fixed connection end 321 may have a wiring cavity 3211 inside. The wiring cavity 3211 inside the fixed connection end 321 is used for laying the wiring, so there is no need to set a wiring cover. Laying the door wiring in the wiring cavity 3211 inside the fixed connection end 321 can achieve the function of concealed wiring, effectively utilize space, make the appearance of the sliding connector 319 more simple and beautiful, and also help to improve the service life of the door wiring and avoid wiring damage.

[0065] In one embodiment, the sliding connection end 322 may be provided with a guide wheel connecting rod 325 rotatably connected to the connecting arm 324, and guide wheels 323 respectively disposed at both ends of the guide wheel connecting rod 325, wherein the guide wheel connecting rod 325 rotates horizontally about the connecting arm 324. The guide wheels 323 are rotatably mounted on the guide wheel connecting rod 325. At least two guide wheels 323 are included, respectively located at both ends of the guide wheel connecting rod 325. The guide wheel connecting rod 325 serves as a guide connecting rod, and the guide wheels 323 serve as guides. The guide connecting rod can also be a slider connecting rod, and the guide can also be a slider.

[0066] In one embodiment, the guide wheel 323 is rotatably connected to the guide wheel connecting rod 325. Both ends of the guide wheel connecting rod 325 are fixedly provided with connecting shafts 3231 along the longitudinal direction. The guide wheel 323 is rotatably mounted on the connecting shafts 3231, thereby enabling the guide wheel 323 to rotate laterally. When the guide wheel connecting rod 325 remains horizontal, the axial direction of the guide wheel 323 and the connecting shafts 3231 is perpendicular to the ground, while the radial direction is parallel to the ground. Taking the guide wheel 323 as the guide wheel and the connecting shafts 3231 as the guide wheel shaft as an example, the guide wheel is rotatably connected to the guide wheel connecting rod 325, and both ends of the guide wheel connecting rod 325 are fixedly provided with guide wheel shafts along the longitudinal direction. The guide wheel is rotatably mounted on the guide wheel shafts, thereby enabling the guide wheel to rotate laterally. It should be noted that the number of guide wheels 323 can be multiple; this application does not limit the number. Correspondingly, the number of connecting shafts 3231 can also be multiple. Multiple guide wheels 323 can be connected together by guide wheel connecting rods 325. The multiple guide wheels 323 are spaced apart from each other, so that the rotation of the multiple guide wheels 323 does not affect each other. The cooperation of the multiple guide wheels 323 can make the lateral force on the door more uniform. In a multi-door structure, the distance between the doors can be kept constant, and the operation of the door is more stable.

[0067] See Figures 15-17 In one embodiment, the connecting arm 324 may include a connecting portion 3141 and a supporting portion 3142. The connecting portion 3141 connects the fixed connecting end 321 to the supporting portion 3142. The supporting portion 3142 supports the sliding connecting end 322. A supporting shaft 3143 may be provided on the supporting portion 3142 and rotatably connected to the guide wheel connecting rod 325. The supporting shaft 3143 may be located at the middle position of the supporting portion 3142. In one implementation, the part where the supporting shaft 3143 connects to the guide wheel connecting rod 325 can be cylindrical, that is, the supporting shaft 3143 can be cylindrical. A hole may be opened in the guide wheel connecting rod 325, through which the guide wheel connecting rod 325 is sleeved on the supporting shaft 3143 and rotates horizontally around the supporting shaft 3143. Since the guide wheel link 325 can rotate laterally around the support shaft 3143, the guide wheel 323 on the guide wheel link 325 can automatically adjust the lateral force on the door body, making the force uniform and the relative movement between the door bodies more stable.

[0068] In this embodiment, the connecting arm 324 extends from the fixed connecting end 321 to the support portion 3142 and forms an integral part with the support portion 3142. The support portion 3142 is located on the side where the sliding connecting end 322 is located to support the sliding connecting end 322. The guide wheel connecting rod 325 is located above the support portion 3142 and can be rotatably connected to the support portion 3142 via a longitudinally arranged support shaft 3143. A recessed portion can be provided on the upper surface of the support portion 3142, and the support shaft 3143 can be fixed in the center of the recessed portion, so that the guide wheel connecting rod 325 can be partially accommodated in the recessed portion, leaving a gap between it and the recessed portion. With this arrangement, the guide wheel connecting rod 325 and the guide wheel can be protected to a certain extent through the recessed portion, making the guide wheel connecting rod 325 and the guide wheel more stable during movement. It should be noted that the side of the support portion 3142 can also be provided with a cavity for concealed wiring. The hollow structure with a gap between the guide wheel connecting rod 325 and the support part 3142, and the cavity structure on the side of the support part 3142, allow for better concealed wiring. It should also be noted that by providing the support part 3142 in the connecting arm 324, the sliding connection end 322 can be better supported. Furthermore, the support shaft 3143 on the support part 3142, which is rotatably connected to the guide wheel connecting rod 325, allows the guide wheel connecting rod 325 to rotate horizontally around the support shaft 3143, thus better automatically adjusting the lateral force on the door body and making the force distribution more even.

[0069] It should be noted that the guide wheel 323 in this embodiment can be replaced with a slider. By setting the guide wheel or slider, the friction when in contact with the door can be reduced, and the stability of the door movement process can be improved.

[0070] See also Figure 9 and Figure 9B The fixed connecting end 321 is connected to the first door body 100, and the sliding connecting end 322 is connected to the second door body 200. The sliding connecting end 322 can be slidably connected to the top of the second door body 200, for example, to the slide rod 210 at the top of the second door body 200. The slide rod 210 at the top of the second door body 200 can be provided with an open cavity 412. The guide wheel 323 extends into the cavity 412 of the slide rod in the second door body 200 and slides, realizing a sliding connection with the second door body 200, so that the first door body 100 and the second door body 200 are connected to each other and can slide relative to each other. The cavity 412 can include two side walls 4121 and 4122. The guide wheel 323 can roll against the side walls 4121 and 4122 of the cavity 412, which has a lateral guiding effect on the second door body 200, reduces the friction when the guide wheel 323 contacts the door body, and improves the stability of the door body movement.

[0071] Taking the sliding connection end 322 with two guide wheels 323 as an example, the two guide wheels 323 are connected by a guide wheel connecting rod 325 and are located at both ends of the guide wheel connecting rod 325. The middle part of the guide wheel connecting rod 325 is rotatably connected to the connecting arm 324, so that the guide wheel connecting rod 325 can rotate laterally around the connecting arm 324. This allows the two guide wheels 323 located at both ends of the guide wheel connecting rod 325 to always slide in contact with the side wall 4121 or 4122 of the cavity 412. That is, the guide wheel 323 is restricted between the two side walls 4121 and 4122 and rolls with one of the side walls. Therefore, when the second door 200 is running, the lateral force on the second door 200 can be automatically adjusted, making the lateral sliding support of the first door 100 on the second door 200 more stable, and the relative movement between the doors more stable, making it less prone to jamming.

[0072] In this embodiment, the cavity 412 can be opened along the length direction of the door slide bar 210, and the structure of the cavity 412 matches the shape of the sliding connection end 322. When installing the sliding connector 319, the fixed connection end 321 can be fixedly connected to the first door body 100 first, and then the guide wheel 323 of the sliding connection end 322 can be slowly inserted into the opening of the cavity 412 of the second door body 200. After insertion, the sliding connection end 322 is housed in the cavity 412, and the guide wheel 323 abuts against the side walls 4121 and 4122 of the cavity 412. The connecting arm 324 extends outward from the opening of the cavity 412 and connects to the fixed connection end 321 on the first door body 100. This structural arrangement allows the sliding connection end 322 to slide and lock in the cavity 412, realizing the sliding connection between the first door body 100 and the second door body 200, and also realizing the hidden installation of the sliding connection end 322 in the cavity at the top of the door body.

[0073] It should be noted that the connection positions of the fixed connection end 321 and the sliding connection end 322 with the door body can also be the bottom of the door body. For example, the sliding connection end 322 is connected to the bottom of a door body, and the fixed connection end 321 is connected to the bottom of another adjacent door body. The bottom of the door body can also be provided with a cavity that can accommodate the fixed connection end 321 and the sliding connection end 322.

[0074] It should also be noted that the above example of concealing the sliding connection end 322 by installing it into the top cavity of a door is not limited to this. Alternatively, the fixed connection end 321 can also be installed into the top cavity of a door, thus allowing both the sliding connection end 322 and the fixed connection end 321 to be concealed simultaneously; or, only the fixed connection end 321 can be installed into the top cavity of a door. Furthermore, the sliding connection end 322 can be concealed only by installing it into the bottom cavity of a door, or only the fixed connection end 321 can be installed into the bottom cavity of a door, or the sliding connection end 200 can be installed into the bottom cavity of a door, and the fixed connection end 321 can be installed into the bottom cavity of another adjacent door, thus allowing both the sliding connection end 322 and the fixed connection end 100 to be concealed simultaneously at the bottom of the door.

[0075] Figure 18 Show Figure 15 A schematic diagram showing the clockwise rotation of the sliding connection end of the sliding connector in the diagram. Figure 19 Show Figure 15 A schematic diagram of the sliding connection end of the sliding connector rotating counterclockwise.

[0076] See Figure 18 and Figure 19 Since multiple guide wheels 323 can be provided, and multiple guide wheels 323 can be rotatably connected to guide wheel connecting rod 325 through connecting shaft 3231, for example, two guide wheels 323 can be provided at both ends of guide wheel connecting rod 325 and rotatably connected to guide wheel connecting rod 325 respectively. The guide wheel connecting rod 325 can be rotatably connected to fixed connecting end 321 through support shaft 3143 on connecting arm 324. Therefore, when the door moves to open or close, the guide wheel connecting rod 325 can rotate clockwise or counterclockwise around the connecting arm 324 in the lateral direction, so that the two guide wheels 323 at both ends of the guide wheel connecting rod 325 are always in sliding contact with the side walls 4121 and 4122 of cavity 412. This can reduce the friction of sliding connecting end 322 in cavity 412 at the top of the door and dynamically adjust the lateral force on the door, making the movement of the door more stable.

[0077] Figure 20 Show Figure 1 The cross-sectional view of the first door body of the sliding door shown. Figure 21 According to Figure 1 A three-dimensional structural diagram of a ring mechanism for a sliding door. Figure 21A yes Figure 21 A magnified view of a portion of point A in the diagram. Figure 21B yes Figure 21 A magnified view of a portion of point B in the diagram. Figure 21C yes Figure 21A A magnified view of a portion at point C. (Refer to...) Figure 20 and Figure 21 The first door 100 drives the second door 200 in conjunction with a ring mechanism H. The ring mechanism H includes a transmission belt 150, a first pulley 130, and a second pulley 120 disposed between sliding support members 510 and 520. Sliding support members 510 and 520 are fixed to the ground, and the first pulley 130 and second pulley 120 are fixed to the lateral ends of the first door 100. The transmission belt 150 is wound around the first pulley 130 and second pulley 120. The first pulley 130 and second pulley 120 are stationary relative to the first door 100, but move relative to the ground when the first door 100 moves, that is, the transmission belt 150 moves relative to the sliding support members 510 and 520. One end of the transmission belt 150 is fixed to the door connecting plate 160, and the other end of the door connecting plate 160 is fixedly connected to the second door 200. In this embodiment, the other end of the door connecting plate 160 is fixed to the rear end of the second door 160. When the motor 400 rotates and drives the first door 100 to move laterally, since the sliding support 510 and the sliding support 520 are fixed to the ground, the first pulley 130 and the second pulley 120 move with the door, driving the transmission belt 150 to move, thereby causing the door connecting plate 160 to drive the second door 200 to move laterally. In one implementation, one end of the transmission belt 150 can be fixedly wound around the sliding support 510, and the other end can be fixedly wound around the sliding support 520. It should be noted that, as an alternative, the two ends of the transmission belt 150 can also be fixedly wound around other positions relative to the ground. For example, two columns can be fixed to the sides of the sliding support 510 and the sliding support 520 respectively. The two ends of the transmission belt 150 are no longer fixed to the sliding support 510 and the sliding support 520, but are fixed to the columns. This can also realize the function of the ring mechanism H.

[0078] Reference Figure 21 and Figure 21C The first pulley 130 and the second pulley 120 are elastically connected to the first door body 100 via a tensioning device 170. In this embodiment, the first pulley 130 and the second pulley 120 are fixedly installed at the front and rear ends of the door slide rod 110 of the first door body 100 via a spring tensioning device 170. Figure 21CTaking the end where the first pulley 130 is located as an example, the structure of the spring tensioning device 170 is described. The spring tensioning device 170 includes a screw 171, a nut 172, a spring 173, and a pulley connecting plate 174. The first pulley 130 can move back and forth relative to the pulley connecting plate 174. The first pulley 130 and the pulley connecting plate 174 are connected by the screw 171. One end of the screw 171 is fixed to the first pulley 130 by a connector. After the screw 171 passes through the pulley connecting plate 174, the protruding part is fitted with the spring 173 and then screwed with the nut 172. One end of the spring 173 elastically abuts against the nut 172, and the other end elastically abuts against the pulley connecting plate 174. By tightening the nut 172, the first pulley 130 is pulled closer to the pulley connecting plate 174, thus achieving the tensioning of the transmission belt 150. Simultaneously, after tightening nut 172, nut 172 compresses spring 173 onto pulley connecting plate 174, causing spring 173 to generate a rebound force in the same direction as the stretching of first pulley 130. Under the action of the rebound force, even if the transmission belt 150 deforms and stretches after prolonged use, it will be automatically tensioned by spring tensioning device 170, thus keeping the transmission belt 150 in a taut state, which helps reduce noise and effectively improves the operational stability of the ring mechanism H. Moreover, the spring tensioning device 170 is hidden in the cavity 111 along with the ring mechanism H, ensuring the stability of the sliding door's operation, reducing the frequency and cost of later maintenance, making it not only durable but also further enhancing the appearance of the sliding door.

[0079] Figure 22A This is a top view of a sliding door in the open state, according to an exemplary embodiment of this application. Figure 22B yes Figure 22A A schematic diagram of the corresponding ring-shaped mechanism; Figure 22C This is a top view of a sliding door in the closed state, according to an exemplary embodiment of this application. Figure 22D yes Figure 22C A schematic diagram of the corresponding ring-shaped mechanism. (Refer to...) Figures 22A to 22DIn the open state, the first door body 100 and the second door body 200 largely overlap. When the motor 400 drives the first door body 100 to move, the first door body 100, through the annular mechanism H and the door body connector 160, drives the connected second door body 200 to slide forward relative to the first door body 100, and the speed of the second door body 200 is twice the speed of the first door body 100. The overlap between the first door body 100 and the second door body 200 gradually decreases. When the first door body 100 and the second door body 200 move to the closed state, the overlap between the first door body 100 and the second door body 200 becomes minimal, at which point the closing width is maximum. In this way, the first door body 100 and the second door body 200 can be linked through the annular mechanism H. When the door is open, the two door bodies basically overlap each other, which reduces the door body retraction space; when the door is closed, the overlap between the two door bodies is minimal, which increases the closing width.

[0080] Continue to refer to Figure 20 , Figure 21 and Figure 21B In this embodiment, the sliding connection ends of each sliding connector and sliding support 530 and 540 are all housed within the corresponding cavities of the door body. The motor 400 is housed within the frame. The sliding support 510, sliding support 520, first pulley 130, second pulley 120, and transmission belt 150 are housed within the cavity 111 at the bottom of the first door body 100. Therefore, in this embodiment, the motor, at least two pairs of sliding connectors, sliding supports 510, 520, 530, 540, first pulley 130, second pulley 120, and transmission belt are all housed within the sliding door, effectively improving the appearance of the sliding door.

[0081] See Figure 10 and Figure 11 Since the second door 200 is suspended and installed on the first door 100, when the door is closed, both the first door 100 and the second door 200 are fully extended. The supporting force of the first door 100 on the second door 200 decreases, and the front end of the second door 200 droops due to its own weight, causing it to tilt upwards towards the rear end, resulting in longitudinal deformation. In this embodiment, along the closing direction, a sliding connector 309 is located at the front end of the second door 200, and a sliding connector 310 is located at the rear end of the second door 200. The fixed connection end 311 of the sliding connector 309 is fixedly connected to the first door 100, and the sliding connection end 312 of the sliding connector 309 is slidably connected to the second door 200. The sliding connection end 312 of the sliding connector 310 is slidably connected to the first door 100, and the fixed connection end 311 of the sliding connector 310 is fixedly connected to the second door 200. Furthermore, as... Figure 23A and Figure 23BAs shown, the longitudinal center of the sliding connection end 312 of the sliding connector 309 is aligned with the longitudinal center of the connecting arm 314, and the longitudinal center of the sliding connection end 312 of the sliding connector 309 is higher than the longitudinal center of the fixed connection end 311 of the sliding connector 309. The longitudinal center of the sliding connection end 312 of the sliding connector 310 is aligned with the longitudinal center of the connecting arm 314, and the longitudinal center of the sliding connection end 312 of the sliding connector 310 is higher than the longitudinal center of the fixed connection end 311 of the sliding connector 310. There is a gap D between them (see...). Figure 24 This configuration allows the longitudinal center of the sliding connection end of the sliding connector 309 to be higher than the longitudinal center of the fixed connection end of the sliding connector 310. This allows the sliding door to be configured such that, when the second door 200 is in the open state, the front end of the second door 200 is higher than its rear end. For example, the front end of the longitudinal bottom support beam or the front end of the door slide bar 181 is higher than its rear end. Figure 24 As shown. In this embodiment, the first door body 100 (e.g., its longitudinal bottom support beam or door slide bar 180) is basically parallel to the closing direction of the second door body 200 under the support of the sliding supports 510 and 520. By making the front end of the second door body 200 higher than the rear end of the second door body 200 when the door is open, the upward tilt of the second door body 200 when the door is closed can be reduced, compensating for the longitudinal deformation of the second door body 200 caused by its own weight. This ensures that when the second door body 200 is in the closed state, its longitudinal bottom support beam is as parallel as possible to the closing direction, thereby ensuring the stability and lifespan of the product structure.

[0082] The sliding door according to an embodiment of this application has been described in detail above. Other embodiments of this application are described below.

[0083] In another embodiment, along the closing direction, a sliding connector 309 is disposed at the front end of the second door body 200, and a sliding connector 310 is disposed at the rear end of the second door body 200. The longitudinal center of the sliding connection end 312 of the sliding connectors 309 and 310 is aligned with the longitudinal center of the connecting arm 314. The sliding connection end 312 of the sliding connector 309 is slidably connected to the first door body 100, and the fixed connection end 311 of the sliding connector 309 is fixedly connected to the second door body 200. The fixed connection end 311 of the sliding connector 310 is fixedly connected to the first door body 100, and the sliding connection end 312 of the sliding connector 310 is connected to the second door body 200. Furthermore, as... Figure 25A and 25BAs shown, the longitudinal center of the fixed connection end 311 of the sliding connector 309 is higher than the longitudinal center of the sliding connection end 312 of the sliding connector 309, and the longitudinal center of the fixed connection end 311 of the sliding connector 310 is higher than the longitudinal center of the sliding connection end 312 of the sliding connector 310. This configuration can reduce the upward tilt of the second door 200 when it is closed and compensate for the longitudinal deformation of the second door 200 caused by its own weight. It is understood that other types of sliding connectors with different structures from sliding connectors 309 and 310 can also be used, and this application does not limit them.

[0084] In another embodiment, along the closing direction, a sliding connector 309 is located at the front end of the second door body 200, and a sliding connector 310 is located at the rear end of the second door body 200. The longitudinal center of the sliding connection end 312 of the sliding connectors 309 and 310 is aligned with the longitudinal center of the connecting arm 314. Both the sliding connection ends 312 of the sliding connectors 309 and 310 are slidably connected to the first door body 100, and their fixed connection ends 311 are fixedly connected to the second door body 200. Furthermore, the longitudinal center of the fixed connection end 311 of the sliding connector 309 is higher than the longitudinal center of the sliding connection end 312 of the sliding connector 309, and the longitudinal center of the sliding connection end 312 of the sliding connector 310 is higher than the longitudinal center of the fixed connection end 311 of the sliding connector 310. This configuration reduces the upward tilt of the second door body 200 when closed, compensating for the longitudinal deformation of the second door body 200 due to its own weight. It is understood that other types of sliding connectors with structures different from sliding connectors 309 and 310 may also be used, and this application does not limit them.

[0085] In another embodiment, along the closing direction, a sliding connector 309 is located at the front end of the second door body 200, and a sliding connector 310 is located at the rear end of the second door body 200. The longitudinal center of the sliding connection end 312 of the sliding connectors 309 and 310 is aligned with the longitudinal center of the connecting arm 314. The fixed connection end 311 of both the sliding connectors 309 and 310 is fixedly connected to the first door body 100, and the sliding connection end 312 of both is slidably connected to the second door body 200. Furthermore, the longitudinal center of the sliding connection end 312 of the sliding connector 309 is higher than the longitudinal center of the fixed connection end 311 of the sliding connector 309, and the longitudinal center of the fixed connection end 311 of the sliding connector 310 is higher than the longitudinal center of the sliding connection end 312 of the sliding connector 310. This configuration can reduce the upward tilt of the second door body 200 when it is closed and compensate for the longitudinal deformation of the second door body 200 caused by its own weight. It is understood that other types of sliding connectors with structures different from sliding connectors 309 and 310 may also be used, and this application does not limit them.

[0086] In other embodiments, the sliding support 510 at the bottom of the first door body 100 can also be implemented with a different structure. For example, it can only have load-bearing wheels without guide wheels. The load-bearing wheels and / or guide wheels of the sliding support can be a single set or multiple sets. If it is a single set, multiple sliding supports should be provided. For another example, the load-bearing wheels or guide wheels can be asymmetrically installed at both ends of the mounting plate 514. In addition, if the sliding support has only a single set of load-bearing wheels, the middle part of the pulley mounting plate 514 should be fixedly connected to the support base 511; if the sliding support has multiple sets of load-bearing wheels and / or guide wheels, the middle part of the pulley mounting plate 514 can be rotatably or fixedly connected to the support base 511. The sliding support 510 and the sliding support 520 can have the same structure. It is understood that in other embodiments, the sliding support 510 and the sliding support 520 can have different structures.

[0087] Figures 26 to 28 This illustration shows the structure of another sliding connector according to an embodiment of the present application. This structure is suitable for placement at the longitudinal top of a sliding door, and can replace, but is not limited to, the sliding connector 319 in the previous embodiment. This embodiment is similar to... Figure 17 Similar to the sliding connector 319 shown, the difference is that a ball 326 can be fixed at the end of the support shaft 3143. The part where the support shaft 3143 connects to the guide wheel connecting rod 325 can be the ball 326. A spherical cavity is provided on the guide wheel connecting rod 325. The spherical cavity is sleeved on the ball 326 to accommodate the ball 326. Then the guide wheel connecting rod 325 can rotate more flexibly through the cooperation of the ball 326 and the spherical cavity.

[0088] See Figure 29In other embodiments, the sliding connecting end 322, connecting arm 324, and fixed connecting end 321 of the sliding connector 319 can be connected and fixed into an integral structure, so that the sliding connector 319 can be integrally formed, which is convenient for design and installation, and also improves the stability of the sliding connector 319 during the movement of the door. In this case, the second door 200 does not have a cavity. In this embodiment, the integral structure can be fixed to the top of the first door 100, the connecting arm 324 of the integral structure can be set as a connecting plate, the sliding connecting end 322 can be set as a guide fixed on the connecting plate, the connecting plate is fixed to the top of the first door 100, and the guide can be set on the side of the top of the second door 200 away from the first door 100. In this embodiment, guide wheels or sliders can be installed on the guide member. These guide wheels or sliders are mounted in grooves on the outer surface of the top of the second door 200, providing lateral sliding support for the second door 200. The guide member provides lateral support and guidance for the first door 100 and the second door 200, allowing them to slide together and maintain parallel operation. It should be noted that in this embodiment, a cavity can also be formed by slotting the top center of the second door 200, with the sliding connection end 322 inserted into the cavity and the fixed connection end 321 located at the top of the first door 100.

[0089] In other embodiments, sliding connectors 309 and 310 may be provided between the first door body 100 and the second door body 200 at the bottom longitudinal direction, and sliding connectors 319 and 320 may not be provided between the first door body 100 and the second door body 200 at the top longitudinal direction, but instead... Figure 30 As shown, top guide members are installed on the top of the first door 100 and the second door 200. The top guide member includes a connecting plate 710 and a pair of guide members 711 fixed to the connecting plate 710. The connecting plate 710 is fixed to the top of the second door 200. The pair of guide members 711 are respectively disposed on both sides of the top of the first door 100 to guide the first door 100. Guide wheels are installed on the guide members 711. The guide members 711 slide in contact with the top sides of the first door 100. The guide members 711 provide lateral support and guidance for the first door 100. The top guide member can keep the first door 100 and the second door 200 running parallel.

[0090] Figures 31 to 32 This illustration shows the structure of another sliding connector according to an embodiment of the present application. This structure is suitable for placement at the longitudinal bottom of a sliding door, and can replace, but is not limited to, the sliding connector 309 in the previous embodiment. This embodiment is similar to... Figure 10Similar to the sliding connector 309 shown, the difference is that a ball 331 can be fixed at the end of the connecting arm 314, and the part where the connecting arm 314 connects to the guide wheel connecting rod 315 can be the ball 331. A spherical cavity is provided on the guide wheel connecting rod 315, and the spherical cavity is sleeved on the ball 331 to accommodate the ball 331. Then the guide wheel connecting rod 315 rotates more flexibly through the cooperation of the ball 331 and the spherical cavity.

[0091] Figures 33 to 35 This illustration shows the structure of another sliding connector according to an embodiment of the present application. This structure is suitable for placement at the longitudinal bottom of a sliding door, and can replace, for example, the sliding connector 309 in the previous embodiment, but is not limited thereto. This sliding connector includes a single load-bearing wheel 313, in which case the guide wheel link 315 is not required. The single load-bearing wheel 313 in this embodiment is also simple to set, can support the longitudinal force of the door body, and is low in cost and easy to install and maintain.

[0092] Please see Figures 33 to 35 The sliding connector includes a sliding connecting end 312 and a fixed connecting end 311. The sliding connecting end 312 and the fixed connecting end 311 are located at opposite ends of the connecting arm 314 and are rotatably connected via the horizontally positioned connecting arm 314. In one implementation, the portion connecting the connecting arm 314 to the sliding connecting end 312 can be cylindrical, meaning the connecting arm 314 is cylindrical. A hole can be formed in the sliding connecting end 312, which is fitted onto the connecting arm 314, allowing the sliding connecting end 312 to rotate around the connecting arm 314. In another implementation, a sphere can be fixed to the end of the connecting arm 314, and the portion connecting the connecting arm 314 to the sliding connecting end 312 can be a sphere. A spherical cavity is provided in the sliding connecting end 312, fitted onto the sphere to accommodate it. This allows the sliding connecting end 312 to rotate more flexibly through the cooperation of the sphere and the spherical cavity. The sliding connecting end 312 is provided with a first guide member that is rotatably connected to the connecting arm 314 and supports the longitudinal force of the door body. The connecting arm 314 is set in a horizontal direction, and the axial direction of the load-bearing wheel 313, which is rotatably connected to the connecting arm 314, is also in a horizontal direction and parallel to the ground. The load-bearing wheel 313 can bear longitudinal force and play a supporting role.

[0093] Figures 36 to 38 This illustration shows the structure of another sliding connector according to an embodiment of the present application. This structure is suitable for placement at the longitudinal bottom of a sliding door, and can replace, but is not limited to, the sliding connector 309 in the previous embodiment. Figure 33 Compared to the previous embodiment, this embodiment has more load-bearing wheels 313.

[0094] Please see Figures 36-38The sliding connector 309 provided in this application includes a fixed connecting end 311 and a sliding connecting end 312. The sliding connecting end 312 includes a guide wheel connecting rod 315, which is provided with two or more guide shafts 402. Each guide shaft 402 is equipped with a load-bearing wheel 313 that supports the longitudinal force of the door body. The guide wheel connecting rod 315 is rotatably connected to the connecting arm 314. The fixed connecting end 311 is fixedly connected to the connecting arm 314.

[0095] This embodiment is better than Figure 33 In this embodiment, a load-bearing wheel 313 is provided. Since the connecting arm 314 is rotatably connected to the guide wheel connecting rod 315, the connecting arm 314 allows the guide wheel connecting rod 315 to swing, and the two load-bearing wheels 313 can rotate around the connecting arm 314, automatically adjusting the longitudinal force during the operation of the door, making the force on the door more uniform and making the door more stable during operation.

[0096] It is understood that the embodiments of this application do not limit the transmission combination of the ring mechanism H. In one implementation, the ring mechanism H can adopt a transmission combination of synchronous belt and synchronous pulley, for example, a transmission combination of wire rope and wire rope pulley; or, a transmission combination of webbing, lifting belt and pulley can also be adopted. Synchronous belt is lighter and more stable than chain. Compared with other methods, the transmission combination of chain and sprocket used in the previous embodiments can not only effectively prevent slippage and other phenomena, which is beneficial to the stability when multiple door panels are linked, but also reduce manufacturing costs. In addition, the spring tensioning device 170 may not have a pulley connecting plate 174, but is fixed to the first pulley 130 through a pulley connector.

[0097] In the above embodiment, two sliding connectors with identical structures are provided at the bottom longitudinal direction of the sliding door between the first door body and the second door body; two sliding connectors with identical structures are also provided at the top longitudinal direction of the sliding door; the sliding connectors at the bottom longitudinal direction and the sliding connectors at the top longitudinal direction have different structures. Specifically, [the following is a partial translation of the provided text: "Where... "] Figure 10 The sliding connector 309 shown is located at the longitudinal bottom of the sliding door, and will... Figure 17 The sliding connector 319 shown is disposed at the longitudinal top of the sliding door. It is understood that this application is not limited thereto; for example, in some other embodiments, two... Figure 17 The sliding connector 319 shown is located at the longitudinal bottom of the sliding door, connecting two... Figure 10The sliding connector 309 shown is disposed at the longitudinal top of the sliding door, that is, it guides the second door body 200 at the longitudinal bottom and supports the second door body 200 at the longitudinal top; for example, in some other embodiments, the two sliding connectors disposed at the longitudinal bottom of the sliding door may have different structures, and the two sliding connectors disposed at the longitudinal top may have different structures; for example, in another embodiment, the four sliding connectors disposed at the longitudinal bottom and longitudinal top of the sliding door have the same structure; for example, in some other embodiments, fewer or more sliding connectors may be disposed between the first door body 100 and the second door body 200.

[0098] In the preceding embodiments, at the longitudinal bottom of the sliding door, the first door body 100 and the second door body 200 are slidably connected by two interlocking sliding connectors 309 and 310. It is understood that, alternatively, the two interlocking sliding connectors at the longitudinal bottom of the sliding door may have different structures. Alternatively, depending on the actual situation, fewer or more sliding connectors may be provided at the longitudinal bottom of the sliding door. When more sliding connectors are provided, adjacent sliding connectors may be configured in an interlocking manner as described above. It is understood that in this embodiment, the configuration of other sliding connectors of the sliding door is not limited. For example, at the longitudinal top of the sliding door, the sliding connector between the first door body 100 and the second door body 200 may be interlocking or non-interlocking. Alternatively, only one sliding connector may be provided between the first door body 100 and the second door body 200. Other types of sliding support structures may also be used to support the second door body.

[0099] In the preceding embodiment, at the longitudinal top of the sliding door, the first door body 100 and the second door body 200 are slidably connected by two interlocking sliding connectors 319 and 320. It is understood that, alternatively, the two interlocking sliding connectors at the longitudinal top of the sliding door may have different structures. Alternatively, depending on the actual situation, fewer or more sliding connectors may be provided at the longitudinal top of the sliding door. When more sliding connectors are provided, adjacent sliding connectors may be configured in an interlocking manner as described above. It is understood that in this embodiment, the configuration of other sliding connectors of the sliding door is not limited. For example, at the longitudinal bottom of the sliding door, the sliding connector between the first door body 100 and the second door body 200 may be interlocking or non-interlocking. Alternatively, only one sliding connector may be provided between the first door body 100 and the second door body 200. Other types of sliding support structures may also be used to support the second door body.

[0100] See again Figure 8 In the aforementioned embodiments, when the sliding door is in the open state, at the same lateral end of the sliding door, for example at... Figure 10As shown in the diagram, the fixed connection end 311 of the sliding connector 310 located at the bottom longitudinal direction and the fixed connection end 321 of the sliding connector 320 located at the top longitudinal direction are both fixed to the second door body 200, while the sliding connection ends 312 and 322 are both locked to the first door body 100 for sliding. It is understood that in some other embodiments, at the same lateral end of the sliding door, the sliding connector 310 located at the bottom longitudinal direction and the sliding connector 320 located at the top longitudinal direction can be interlocked. For example, the fixed connection end 311 of the sliding connector 310 located at the bottom longitudinal direction is fixed to the first door body 100, and the sliding connection end 312 is locked to the second door body 100 for sliding; the fixed connection end 321 of the sliding connector 320 located at the top longitudinal direction is fixed to the second door body 200, and the sliding connection end 322 is locked to the first door body 100 for sliding.

[0101] In other embodiments, two sliding connectors are interlocked at the longitudinal bottom of one lateral end and the longitudinal top of the other lateral end of the sliding door. For example, a connector can be provided at the longitudinal bottom of the front end. Figure 10 The sliding connector 309 shown has a longitudinal top at the rear end, as shown in the figure. Figure 17 The sliding connector 320 shown has a fixed connection end 311 fixedly disposed on the first door body 200, a sliding connection end 312 slidably locked to the second door body 100, a fixed connection end 321 fixedly disposed on the second door body 100, and a sliding connection end 322 slidably locked to the first door body 200.

[0102] Understandably, as an alternative, the two sliding connectors at the longitudinal bottom and longitudinal top of the sliding door, which are interlocked, may also have the same structure. Understandably, in this embodiment, the configuration of other sliding connectors for the sliding door is not limited. For example, other sliding connectors between the first door body 100 and the second door body 200 may be interlocked or non-interlocked; or fewer other sliding connectors may be used between the first door body 100 and the second door body 200.

[0103] Figure 39 and Figure 40 A sliding door according to another embodiment of this application is shown. (Refer to...) Figure 39 and Figure 40 The sliding door of this embodiment includes a frame and a first door body 100 slidably mounted on the frame; the frame is integrally assembled with sliding support members 510 and 530; the sliding support members 510 and 530 are respectively disposed at the longitudinal bottom and longitudinal top of the frame. The sliding support member 510 is configured to support the first door body 100 longitudinally. The sliding support member 530 is configured to support the first door body 100 laterally.

[0104] In this embodiment, the frame has a single support, which can be a gantry 700. The gantry 700 includes two side beams 740 and a top beam 720 connecting the two side beams 740, and the first gate body 100 is slidably supported between the two side beams 740.

[0105] The sliding support 510 and the gantry 700 are fixed on the base plate 730, and the sliding support 510 and the gantry 700 are integrated through the base plate 730.

[0106] The sliding support member 530 is configured to support the first door body 100 on both sides. The sliding support member 530 includes two guide wheels 222 respectively mounted on the top beam 720 of the gantry frame 700 and abutting against the first door body 100 from both sides. In this embodiment, the two guide wheels 222 abut against both sides of the first door body 100, providing support and guidance to the first door body 100, thus stably supporting it on the frame. With this configuration, the sliding support member 530 can slidably support the first door body 100 on both sides. In the sliding door provided in this embodiment, the sliding support member 510 can support the first door body 100 longitudinally, and the sliding support member 530 can support the first door body 100 laterally.

[0107] Understandably, in some other embodiments, the two guide wheels 222 of the sliding support member 530 can be respectively installed on the two side beams 740 of the gantry frame 700 and abut against the first door body 100 from both sides. In this way, the sliding support member 530 can also slide to support the first door body 100 on both sides of the first door body 100.

[0108] Understandably, in some other embodiments, a single support may be a column located on one side of the first door 100. Sliding support members 510 and 530 are longitudinally spaced and integrally assembled with the column, with the sliding support member 530 locked within the cavity 113 of the first door 100.

[0109] In this embodiment, the frame, sliding support 510 and sliding support 530, and door body can be assembled into a single unit and then packaged for transportation. At the installation site of the sliding door, the integrated door body only needs to be placed at the desired installation position, and the base plate 730 can be fixed to the ground using chemical anchors or expansion bolts to secure the entire sliding door to the ground. Therefore, the installation process is simple, convenient, and quick. In addition, the frame has only a single support, and the first door body 100 is supported only by the sliding support 510 and sliding support 530 located on this single support, which has the advantages of simple structure and low cost.

[0110] Understandably, in some other embodiments, the sliding support 530 can be slidably locked to one side of the first door 100 to support the first door 100 laterally. Alternatively, the sliding support 530 can slidably support the first door 100 by locking it to both sides.

[0111] Figure 41 and Figure 42 Partially illustrated is a portion of the structure of a sliding door according to another embodiment of this application. In this embodiment, the frame has a single support, which is a gantry frame 700; it is understood that the support could also be a column. The door body is slidably supported between two side beams of the gantry frame 700. The gantry frame 700 is integrally assembled with sliding support members 510 and 530; the sliding support members 510 and 530 are respectively located at the longitudinal bottom and longitudinal top of the gantry frame 700. The sliding support member 510 is configured to support the door body longitudinally. The sliding support member 530 is configured to support the door body laterally.

[0112] In this embodiment, the sliding support member 530 locks onto one side of the door body to provide sliding support. The sliding support member 530 may have the features described above. Figure 7 As shown in the structure, the sliding support 530 and the cavity 113 opened on the first door body slide and lock together. It can be understood that the scheme of sliding and locking the sliding support 530 and the cavity 113 can refer to the previous description of sliding and locking the sliding support 540 and the cavity 113, which will not be repeated here.

[0113] Understandably, in some other embodiments, the sliding support 530 may be configured to slide and support the door body in a locking manner on both sides of the door body.

[0114] It is understood that in some other embodiments, sliding supports can be configured to slide and support the door body on both sides of the longitudinal top of the first door body 100. The structure of the sliding supports can refer to the corresponding structure in the previous embodiments or adopt other suitable structures, which will not be described in detail here.

[0115] like Figure 41 and Figure 42 As shown, the sliding door in this embodiment also includes a sliding support member 520. Both the sliding support member 520 and the sliding support member 510 support the door body longitudinally, and are spaced apart laterally (i.e., in the sliding direction of the door body), and are integrally assembled via a connector 940. In this embodiment, the sliding support member 520 can have the same structure as the sliding support member 510, and the sliding support member 510 and the sliding support member 520 can have the characteristics described above. Figure 5The structure is shown. In this embodiment, the connector 940 includes a connecting strip connecting the sliding support 510 and the sliding support 520. In one implementation, the connecting strip may be a channel steel or steel pipe welded between the sliding support 510 and the sliding support 520. In another implementation, the connector 940 includes a connecting plate connecting the two base plates below the base plate of the sliding support 510 and the base plate of the sliding support 520. It is understood that, alternatively, the base plates of the sliding support 510 and the sliding support 520 may be set as a single piece.

[0116] In this embodiment, the sliding support 510 and the sliding support 520 are arranged laterally and connected as a whole by the connector 940. The sliding support 510 and the sliding support 530 are arranged longitudinally and assembled as a whole with the gantry frame 700. The sliding support 510 and the sliding support 520 provide longitudinal support for the door body, and the sliding support 530 provides lateral support for the door body.

[0117] In this embodiment, sliding support 510 and sliding support 520 can be assembled into one unit via connector 940. The frame, sliding support 510 and sliding support 530, and the door body are then assembled into a single unit and packaged for transportation. At the installation site of the sliding door, simply place the integrated door body at the desired installation location and fix the base plate 730 to the ground using chemical anchors or expansion bolts to secure the entire sliding door to the ground. Therefore, the installation process is simple, convenient, and quick. Furthermore, the door body is supported by three sliding support members, while the frame only has a single support, resulting in a simple, stable structure and lower cost.

[0118] Understandably, the above configuration also applies to situations with only one door.

[0119] It is understood that in some other embodiments, as described above, the sliding support 530 and / or the sliding support 540 may be configured to lock or slide to support the first door 100 on both sides of the first door 100; or the sliding support may be configured to lock to one side of the first door 100 and slide to support the first door 100.

[0120] Understandably, in some other embodiments, a sliding support 530 can be provided to support the door on one side of the door, and a column 650 can be provided on the other side of the door, with the sliding support 540 mounted on the column 650 to support the door on the other side of the door.

[0121] Understandably, in some other embodiments, the rack may include two gantry frames, for example, the front upright 650 may be replaced with a gantry frame.

[0122] In another embodiment, such as Figure 43As shown, a sliding connector is provided below the second door 200 to support the second door 200 longitudinally. The sliding connector can be a door wheel 220 that is slidably supported on the ground and fixedly installed at the bottom of the second door 200. After the door wheel 220 is installed, the door wheel 220 and the sliding connector 310 jointly provide longitudinal support for the second door 200, making the force on the second door 200 more balanced, reducing the load on the first door 100, and thus making the entire sliding door more durable and its operation more stable.

[0123] Understandably, the door wheel 220 is already able to support the second door 200 longitudinally. At this time, the sliding connection between the first door and the second door can be a lateral support, in which case there can be only guide wheels without load-bearing wheels, or it can be a longitudinal support, depending on the specific structure of the connection.

[0124] Figure 44 This diagram shows a partial structural schematic of a sliding door according to another embodiment of the present application; Figure 45 yes Figure 44 A top view of the sliding door in the open position; Figure 46 yes Figure 44 A top view of the sliding door in the closed position. In other embodiments, such as... Figures 44 to 46 As shown, the sliding door in this embodiment also includes a third door body 600 driven by the second door body 200. In this embodiment, a sliding connector 620 is provided at the bottom of the second door body 200 and the third door body 600 in the longitudinal direction, and a sliding connector (not shown) is also provided at the top of the second door body 200 and the third door body 600 in the longitudinal direction. The second door body 200 and the third door body 600 are slidably locked together as one unit through the sliding connectors between them. It can be understood that the structure of the sliding connector 620 at the bottom of the second door body 200 and the second door body 600 can be the same as the structure of the sliding connector 309, and the structure of the sliding connector at the top can be the same as the structure of the sliding connector 319. The bottom sliding connector 620 and the top sliding connector enable the second door body 200 and the third door body 600 to be stably connected at the top and bottom and slide relatively smoothly. Similar to the first door 100 and the second door 200, the second door 200 and the third door 600 can be connected by another annular mechanism, which includes a pulley block 550, a pulley block 560, and a transmission belt 570 disposed between the pulley blocks 550 and 560 (see...). Figure 44), pulley 580 and pulley 590. Pulley set 550 and pulley set 560 are fixed to one side of the first door body 100 facing the second door body. Pulley 580 and pulley 590 are fixed to the transverse two ends of the door body slide bar 181 of the second door body 200. Transmission belt 570 is wound around pulley 580 and pulley 590. Two ends of transmission belt 570 are respectively fixed to pulley set 550 and pulley set 560. Pulley 580 and pulley 590 are stationary relative to the second door body 200. The positions of pulley set 550 and pulley set 560 are fixed relative to the first door body 100, and their positions relative to the ground change with the sliding of the first door body 100. That is, transmission belt 570 is moving relative to pulley set 550 and pulley set 560. A door body connecting plate 630 is fixed to transmission belt 570. Door body connecting plate 630 (see Figure 44 ) is fixed to transmission belt 570 at one end and fixed to the rear end of the third door body 600 at the other end. When the first door body 100 moves from Figure 45 position to Figure 46 position, the door body connecting plate 160 between the first door body 100 and the second door body 200 drives the second door body 200 to slide. The sliding of the second door body 200 in turn drives the door body connecting plate 630 to slide along with it, thereby driving the third door body 600 to slide, so as to realize the linkage of the three door bodies. Similarly, when the first door body slides in the reverse direction, the three door bodies can also realize linkage. It should be noted that the number of door bodies in this application is not limited. According to actual needs, the number of door bodies can also be increased. When multiple door bodies are provided, the multiple door bodies overlap and slide telescopically, which can further reduce the retraction space of the sliding door and increase the closing width of the sliding door, and is less restricted by the installation site and has strong versatility.

[0125] The above has described the embodiments of the present application. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A sliding door, characterized in that, include: It includes a frame and a door body slidably mounted on the frame via a sliding support, the door body being provided with a cavity; The cavity has an opening for the sliding support to pass through, and the sliding support is connected to the frame and locked within the cavity for sliding. The sliding support includes a load-bearing wheel and a guide wheel housed within the cavity. The sliding support slides in contact with the top wall of the cavity via the load-bearing wheel to support the longitudinal force on the door body. The sliding support slides in contact with the side wall of the cavity via the guide wheel to guide the door body laterally.

2. The sliding door according to claim 1, characterized in that: The sliding support includes a base plate, on which a longitudinally arranged support seat is fixed; a pulley mounting plate is provided on the support seat, and the middle part of the pulley mounting plate is rotatably connected to the support seat, so that the pulley mounting plate can swing longitudinally; the load-bearing wheel and the guide wheel are respectively provided at both ends of the pulley mounting plate.

3. The sliding door according to claim 1, characterized in that: It also includes a sliding connector, which comprises a fixed connecting end and a sliding connecting end; The sliding connection end is provided with a guide wheel link, and the guide wheel link is provided with at least two load-bearing wheels and two sets of lateral guide wheels; wherein a load-bearing wheel is provided at each end of the guide wheel link, and a set of lateral guide wheels is provided at the adjacent part of each load-bearing wheel.

4. The sliding door according to claim 3, characterized in that: The diameter of the lateral guide wheel is greater than the width of the load-bearing wheel and also greater than the width of the guide wheel connecting rod.

5. The sliding door according to claim 1, characterized in that, include: First sliding support and second sliding support; The first sliding support is configured to support the door body at least in the longitudinal direction, and the second sliding support is configured to support the door body in at least one of the lateral and longitudinal directions. The second sliding support and the first sliding support are spaced apart in the sliding direction of the door body and are integrally assembled with the first sliding support via a connector. The connector includes a connecting strip connecting the first sliding support and the second sliding support.

6. The sliding door according to claim 1, characterized in that: The door includes a first door and a second door. The second door is driven and linked by the first door through a ring mechanism. The second door slides and is supported on the first door in the longitudinal direction, forming a suspended operation. In the open state, the front end of the second door is higher than the rear end to compensate for the longitudinal deformation when the door is closed.

7. The sliding door according to claim 6, characterized in that: The annular mechanism includes a transmission belt, a first pulley, and a second pulley; the transmission belt is wound around the first pulley and the second pulley and fixed to a connecting plate connected to the door body; wherein the first pulley and the second pulley are elastically connected to the door body through a tensioning device, and the tensioning device is used to keep the transmission belt taut.

8. The sliding door according to claim 6, characterized in that, Also includes: First sliding connector and second sliding connector; The sliding connection end of the first sliding connector is locked inside the cavity of the second door body, and the sliding connection end of the second sliding connector is locked inside the cavity of the first door body.

9. The sliding door according to claim 1, characterized in that: The inner wall of the cavity includes a top wall, a bottom wall, and two side walls connecting the top wall and the bottom wall. The bottom wall or side wall is provided with an opening for the sliding support to pass through.

10. The sliding door according to claim 5, characterized in that: It also includes a third sliding support and a fourth sliding support that is spaced apart from the third sliding support in the sliding direction of the door; the third sliding support and the fourth sliding support are locked and slidably support the door on one side of the door, or slidably support the door on both sides of the door; The frame includes a first bracket and a second bracket. The first sliding support and the third sliding support are integrally assembled on the first bracket, and the second sliding support and the fourth sliding support are integrally assembled on the second bracket. The first sliding support and the second sliding support are integrally connected by a connector.

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