Sliding door modules and projection equipment

Abstract

This application discloses a sliding door module and a projection device. The sliding door module includes: a fixed door body; a movable door body; a slide rail located inside the fixed door body, the slide rail extending parallel to the fixed door body; a lifting mechanism cooperating with the slide rail and connected to the movable door body, for driving the movable door body to rise or fall in a direction perpendicular to the extension of the slide rail; and a drive mechanism connected to the lifting mechanism for driving the lifting mechanism to move on the slide rail, thereby driving the movable door body to move along the extension direction of the slide rail. The sliding door module and projection device provided by this application can automatically open or close the movable door body.

Description

Technical Field

[0001] The present application belongs to the technical field of sliding doors, and in particular relates to a sliding door module and a projection device. Background Art

[0002] Projection equipment uses light to project images onto a screen wall for display. The optical lens is the most important component in a projection system and requires dust protection. Therefore, when the projection system is not in use, a movable door is used to conceal the optical lens inside the housing for protection.

[0003] In the related art, manual opening or closing of the movable door is usually required, and the degree of automation is low. Summary of the Invention

[0004] The present application aims to provide a sliding door module and a projection device that can automatically open or close a movable door body.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a sliding door module, comprising:

[0007] Fixed door body;

[0008] Movable door body;

[0009] A slide rail is located inside the fixed door body, and an extending direction of the slide rail is parallel to the fixed door body;

[0010] a lifting mechanism, cooperating with the slide rail and connected to the movable door body, for driving the movable door body to rise or fall in a direction perpendicular to the extension direction of the slide rail;

[0011] The driving mechanism is connected to the lifting mechanism and is used to drive the lifting mechanism to move on the slide rail to drive the movable door body to move along the extension direction of the slide rail.

[0012] Furthermore, the lifting mechanism is used to raise the movable door body so that the outer surface of the movable door body is flush with the outer surface of the fixed door body; or, to lower the movable door body so that the outer surface of the movable door body is located on one side of the inner surface of the movable door body.

[0013] Furthermore, the lifting mechanism includes a main body portion cooperating with the slide rail, an extension portion fixed to the main body portion and connected to the driving mechanism, and a linkage assembly movably connecting the main body portion and the movable door body.

[0014] Furthermore, the linkage assembly includes two connecting rods, and the two ends of each connecting rod form a rotation range with the main body and the movable door body respectively; the two connecting rods, the main body and the movable door body together constitute a quadrilateral structure.

[0015] Furthermore, the rotating width includes a rotating shaft and a sleeve that cooperate with each other, one of the rotating shaft and the sleeve is located at the end of the connecting rod, and the other of the rotating shaft and the sleeve is arranged on a mounting body, and the mounting body is the main body or the movable door body.

[0016] Furthermore, a bracket is provided on a side of the slide rail close to the fixed door body, and the bracket is used to support two rotating sections connected to the movable door body.

[0017] Furthermore, it also includes a limiting member, which is arranged at the end of the sliding rail close to the side of the fixed door body.

[0018] Furthermore, the driving mechanism is a screw motor, the output shaft of the screw motor is parallel to the extension direction of the slide rail, and the output shaft of the screw motor drives the lifting mechanism to move on the slide rail.

[0019] Furthermore, the lifting mechanism is a telescopic drive mechanism, and when the lifting mechanism is in the first position, the power rod is extended to lift the movable door body or the power rod is retracted to lower the movable door body.

[0020] In a second aspect, an embodiment of the present application provides a projection device comprising the sliding door module as described above.

[0021] In an embodiment of the present application, the driving mechanism in the sliding door module can drive the lifting mechanism and the movable door body to move along the extension direction of the sliding rail. The lifting mechanism can drive the movable door body to rise or fall in the extension direction perpendicular to the sliding rail, thereby realizing the automatic opening or closing of the movable door body by the projection equipment, thereby improving the degree of automation of the projection equipment.

[0022] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 This is one of the structural diagrams of a sliding door module according to an embodiment of the present application;

[0025] Figure 2This is the second structural diagram of the sliding door module according to an embodiment of the present application;

[0026] Figure 3 This is the third structural diagram of a sliding door module according to an embodiment of the present application;

[0027] Figure 4 yes Figure 1 Front view of

[0028] Figure 5 yes Figure 3 Front view of

[0029] Figure 6 This is a partial structural diagram of a sliding door module according to an embodiment of the present application when the movable door body is located in the first position;

[0030] Figure 7 This is a partial structural diagram of a sliding door module according to an embodiment of the present application when the main body is located in a first position;

[0031] Figure 8a This is one of the front views of a sliding door module according to an embodiment of the present application;

[0032] Figure 8b This is the second front view of a sliding door module according to an embodiment of the present application;

[0033] Figure 8c This is the third front view of a sliding door module according to an embodiment of the present application;

[0034] Figure 9 It is a structural diagram of a projection module according to an embodiment of the present application.

[0035] Figure numerals: 100 - sliding door module; 110 - fixed door body; 120 - movable door body; 130 - slide rail; 140 - lifting mechanism; 141 - main body; 142 - extension part; 143 - linkage assembly; 1431 - connecting rod; 150 - driving mechanism; 160 - limiting member; 900 - projection device; 910 - base. DETAILED DESCRIPTION

[0036] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0037] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly refer to one or more of the features. Throughout the description of this application, unless otherwise specified, "plurality" means two or more. Furthermore, "and / or" in the specification and claims refers to at least one of the connected entities, and the character " / " generally indicates an "or" relationship between the connected entities.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0040] The following combination Figure 1-Figure 5 As shown, a sliding door module 100 according to some embodiments of the present application is described, including:

[0041] Fixed door body 110;

[0042] Movable door body 120;

[0043] The slide rail 130 is located inside the fixed door body 110 , and the extension direction of the slide rail 130 is parallel to the fixed door body 110 ;

[0044] a lifting mechanism 140 , cooperating with the slide rail 130 and connected to the movable door body 120 , for driving the movable door body 120 to rise or fall in a direction perpendicular to the extension direction of the slide rail 130 ;

[0045] The driving mechanism 150 is connected to the lifting mechanism 140 and is used to drive the lifting mechanism 140 to move on the slide rail 130 to drive the movable door body 120 to move along the extension direction of the slide rail 130 .

[0046] In an embodiment of the present application, the driving mechanism in the sliding door module can drive the lifting mechanism and the movable door body to move along the extension direction of the sliding rail. The lifting mechanism can drive the movable door body to rise or fall in the extension direction perpendicular to the sliding rail, thereby realizing the automatic opening or closing of the movable door body by the projection equipment, thereby improving the degree of automation of the projection equipment.

[0047] The fixed door 110 is fixed to the device base and is a fixed component. The movable door 120 is a movable component that can move relative to the fixed door 110. The fixed door 110 and the movable door 120 can both be plate-shaped structures. The thickness of the fixed door 110 can be the same as that of the movable door 120, or it can be greater than the thickness of the movable door 120, which is not limited here.

[0048] The slide rail 130 is fixed inside the device housing and is parallel to the fixed door body 110. Since the slide rail 130 is arranged parallel to the fixed door body 110, the overall thickness of the sliding door module 100 can be designed to be thinner by reducing the distance between the slide rail 130 and the fixed door body 110.

[0049] The lifting mechanism 140 cooperates with the slide rail 130 and is capable of moving along the extension direction of the slide rail 130. Furthermore, the lifting mechanism 140 is also connected to the movable door body 120. As the lifting mechanism 140 moves along the extension direction of the slide rail 130, it also drives the movable door body 120 to move along the extension direction of the slide rail 130. During this movement, the movable door body 120 always remains parallel to the fixed door body 110.

[0050] It should be noted that, in the embodiment of the present application, the ascending direction of the ascending movable door body 120 mentioned in the lifting mechanism refers to the direction of movement close to the fixed door body, and the descending direction of the descending movable door body 120 mentioned in the lifting mechanism refers to the direction of movement close to the slide rail.

[0051] The driving mechanism 150 is a linear driving mechanism, which is connected to the lifting mechanism 140 to provide power to the lifting mechanism 140 and the movable door body 120 to move along the extension direction of the slide rail 130 .

[0052] The first position and the second position are respectively the two end limit positions of the lifting mechanism 140 moving on the slide rail 130. Figure 4 and Figure 5 When the lifting mechanism 140 is in the first position, the movable door body 120 is in a closed state; when the lifting mechanism 140 is in the second position, the movable door body 120 is in an open state.

[0053] Furthermore, the lifting mechanism 140 is used to raise the movable door body 120 so that the outer surface of the movable door body 120 is flush with the outer surface of the fixed door body 110; or, to lower the movable door body 120 so that the outer surface of the movable door body 120 is located on one side of the inner surface of the movable door body 120.

[0054] When the driving mechanism 150 drives the lifting mechanism 140 to be in the first position, the outer surface of the movable door body 120 is flush with the outer surface of the fixed door body 110. Figure 1 and Figure 4 Alternatively, when the driving mechanism 150 drives the lifting mechanism 140 to be located in the second position, the positive projection of the movable door body on the fixed door body is located within the fixed door body, as shown Figure 2 and Figure 5 shown.

[0055] It should be noted that the outer surface of the movable door body 120 is flush with the outer surface of the fixed door body 110, which means that the step difference between the outer surface of the movable door body 120 and the outer surface of the fixed door body 110 can be in the range of 0-3 cm.

[0056] When the optical machine lens switches from the working state to the non-working state, the driving mechanism 150 drives the lifting mechanism 140 to move from the second position to the first position, and the lifting mechanism 140 drives the movable door body 120 to rise, so that the outer surface of the movable door body 120 is flush with the outer surface of the fixed door body 110, thereby hiding the optical machine lens inside the movable door body 120 for protection. Figure 1 and Figure 4 As shown;

[0057] When the optical machine lens switches from the non-working state to the working state, the driving mechanism 150 drives the lifting mechanism 140 to move from the first position to the second position, and the lifting mechanism 140 drives the movable door body 120 to descend, so that the movable door body 120 is hidden inside the fixed door body 110, thereby exposing the optical machine lens to ensure that the light emitted by the optical machine lens can be emitted to produce projection, such as Figure 2 and Figure 5 shown.

[0058] The sliding door module 100 is applied to a shell with an opening, and the fixed door body 110 is installed on the shell. When the movable door body 120 is in the open state, the movable door body 120 is hidden on the inner side of the fixed door body 110 and part of the opening is exposed; when the movable door body 120 is in the closed state, the outer surface of the movable door body 120 is flush with the outer surface of the fixed door body 110, and the opening is jointly blocked by the fixed door body 110 and the movable door body 120.

[0059] When the projection device is turned on and the optical machine lens needs to be used, the driving mechanism drives the lifting mechanism to the second position, so that the movable door body is hidden inside the fixed door body, and the appearance is simple; when the projection device is turned off and the optical machine lens stops being used, the driving mechanism drives the lifting mechanism to the first position, and the lifting mechanism raises the movable door body so that the outer surface of the movable door body is flush with the outer surface of the fixed door body, so that there is no step difference between the movable door body and the fixed door body when the sliding door is closed, which can improve the overall aesthetics of the projection device.

[0060] In an optional embodiment, the lifting mechanism 140 includes a main body 141 that cooperates with the slide rail 130, an extension part 142 fixed to the main body 141 and connected to the driving mechanism 150, and a linkage assembly 143 that movably connects the main body 141 and the movable door body 120.

[0061] Among them, the extension part 142 is connected to the driving mechanism 150 to obtain the driving force in the extension direction of the slide rail 130; the extension part 142 is transmitted to the main body 141, so that the main body 141 moves on the slide rail 130, and then drives the linkage assembly 143 and the movable door body 120 to move together.

[0062] In this embodiment, the lifting mechanism 140 specifically realizes the lifting or lowering of the movable door body 120 in a direction perpendicular to the extension direction of the slide rail 130 through the linkage component 143.

[0063] Specifically, the linkage assembly 143 includes two connecting rods 1431, and the two ends of each connecting rod 1431 form a rotation range with the main body 141 and the movable door body 120 respectively; the two connecting rods 1431, the main body 141 and the movable door body 120 together constitute a quadrilateral structure.

[0064] The main body 141 is parallel to the fixed door body 110 , and when the main body 141 moves on the slide rail 130 , the movable door body 120 is always parallel to the fixed door body 110 .

[0065] The two ends of each connecting rod 1431 are respectively connected to the main body 141 and the movable door body 120. By making the spacing distance between the two positions where the main body 141 is connected to the connecting rod 1431 consistent with the spacing distance between the two positions where the movable door body 120 is connected to the connecting rod 1431, the two connecting rods 1431, the main body 141 and the movable door body 120 can together form a parallelogram structure.

[0066] Among them, the connection between the end of the connecting rod 1431 and the main body 141 and the movable door body 120 is a rotating width structure, so that the connecting rod 1431 and the main body 141 can rotate relative to each other, that is, the angle between the connecting rod 1431 and the main body 141 can be changed; similarly, the connecting rod 1431 and the movable door body 120 can rotate relative to each other, that is, the angle between the connecting rod 1431 and the movable door body 120 can be changed.

[0067] In this way, by flexibly changing the angle between the connecting rod 1431 and the movable door body 120 or the main body 141, the distance between the movable door body 120 and the main body 141 can be changed. In addition, since the main body 141 is always located in the slide rail 130, changing the distance between the movable door body 120 and the main body 141 actually realizes the raising or lowering of the movable door body 120.

[0068] Preferably, the two connecting rods 1431 are parallel to each other, and the two connecting rods 1431 , the main body 141 and the movable door body 120 together form a parallelogram structure.

[0069] Furthermore, the rotating width includes a rotating shaft and a sleeve that cooperate with each other, one of the rotating shaft and the sleeve is located at the end of the connecting rod, and the other of the rotating shaft and the sleeve is arranged on a mounting body, and the mounting body is the main body or the movable door body.

[0070] The rotating shaft is inserted into the shaft sleeve and can rotate relative to the shaft sleeve.

[0071] In the structure in which the end of the connecting rod 1431 and the main body 141 form a rotating width, the rotating shaft can be located at the end of the connecting rod 1431 and the sleeve is located at the main body 141; or the rotating shaft can be located at the main body 141 and the sleeve is located at the end of the connecting rod 1431.

[0072] In the structure where the end of the connecting rod 1431 and the movable door body 120 form a rotating range, the rotating shaft can be located at the end of the connecting rod 1431 and the shaft sleeve is located at the movable door body 120; or the rotating shaft can be located at the movable door body 120 and the shaft sleeve is located at the end of the connecting rod 1431.

[0073] In addition, both ends of the same connecting rod 1431 can be rotating shafts, both ends can be shaft sleeves, or one end can be a rotating shaft and the other end can be a shaft sleeve, which is not limited here.

[0074] Furthermore, the two rotating blades connected to the movable door body 120 are located on the surface of the movable door body 120 close to the slide rail 130. In this way, the rotating blades are hidden inside the movable door body 120 and will not be exposed when the outer surface of the movable door body 120 is flush with the outer surface of the fixed door body 110, thereby ensuring the aesthetic appearance of the projection device.

[0075] In an optional embodiment, the rotating shaft of any rotation amplitude can be an electrically controlled rotating shaft, which acts as an active rotating shaft when rotating, driving other rotating shafts to rotate synchronously with the sleeve relative to each other, thereby changing the angle between the connecting rod 1431 and the movable door body 120 or the main body 141.

[0076] Specifically, during the process of the main body 141 moving from the second position to the first position: after the movable door body 120 reaches the first position, the electrically controlled rotating shaft rotates, so that the movable door body 120 always remains in the first position during the process of the main body 141 moving toward the first position, so that the angle between the connecting rod 1431 and the movable door body 120 or the main body 141 changes, thereby achieving the connection rod 1431 driving the movable door body 120 to rise in the first position in a direction perpendicular to the slide rail 130;

[0077] During the process of the lifting mechanism 140 moving from the first position to the second position: the electrically controlled shaft rotates, so that the movable door body 120 always remains in the first position during the process of the main body 141 starting to move to the second position, so that the angle between the connecting rod 1431 and the movable door body 120 or the main body 141 changes, so that the connecting rod 1431 drives the movable door body 120 to descend in the direction perpendicular to the slide rail 130 in the first position. After the outer surface of the movable door body 120 is lower than the inner surface of the fixed door body 110, the electrically controlled shaft can stop rotating, and the main body 141 drives the movable door body 120 to leave the first position. The main body 141 reaches the second position, so that the movable door body 120 is hidden inside the fixed door body 110.

[0078] Furthermore, the movable door body 120 is located on a side of the main body 141 close to the fixed door body 110 .

[0079] This can be achieved by providing a bracket on the side of the slide rail 130 close to the fixed door body 110, and supporting the movable door body 120 by the bracket, so that the movable door body 120 is located on the side of the main body 141 close to the fixed door body 110; or it can be achieved by lengthening the length of the rotating shaft of the rotating amplitude on the movable door body 120 so that the rotating shaft abuts against the upper edge of the slide rail 130 to prevent the rotating shaft from falling, thereby ensuring that the movable door body 120 is located on the side of the main body 141 close to the fixed door body 110, which is not limited here.

[0080] Furthermore, a limiting member 160 is included. The limiting member 160 is arranged at the end of the sliding rail 130 close to the fixed door body.

[0081] In this embodiment, by adding the limiting member 160 , the movement of the lifting mechanism 140 and the movable door body 120 on the slide rail 130 can be limited to not exceed the first position.

[0082] In addition, when the movable door body 120 moves along the extension direction of the slide rail 130, it is located on the side of the main body 141 close to the limiter. When the movable door body 120 reaches the first position and the main body 141 does not reach the first position, the movable door body 120 abuts against the limiter 160. Figure 3 and Figure 6 As shown, when the main body 141 moves further toward the first position, the limiting member 160 presses against the movable door body 120, thereby changing the angle between the connecting rod 1431 and the movable door body 120, so that the connecting rod 1431 supports the movable door body 120 to rise in a direction perpendicular to the slide rail 130. Finally, when the main body 141 reaches the first position, as shown in FIG. Figure 7 As shown, the outer surface of the movable door body 120 is flush with the outer surface of the fixed door body 110 .

[0083] When the main body 141 is located at the first position, the angle between the connecting rod 1431 and the movable door body 120 can be a right angle, and the quadrilateral can be a rectangle; it can also be non-right angle, which is not limited here.

[0084] In another optional embodiment, the driving mechanism 150 may be a screw motor, the output shaft of the screw motor is parallel to the extension direction of the slide rail, and the output shaft of the screw motor drives the lifting mechanism to move on the slide rail.

[0085] In this embodiment, the lifting mechanism 140 is connected to the output shaft of the lead screw motor. The direction of movement of the lifting mechanism 140 on the slide rail 130 can be controlled by controlling the extension and retraction of the output shaft. For example, if the output shaft extends in the forward direction, the lifting mechanism 140 moves to the first position; if the output shaft retracts in the reverse direction, the lifting mechanism 140 moves to the second position.

[0086] In another optional embodiment, if Figures 8a-8c As shown, the lifting mechanism 140 may also be a telescopic driving mechanism. When the lifting mechanism 140 is in the first position, the power rod is extended to raise the movable door body 120 or the power rod is retracted to lower the movable door body 120.

[0087] When the optical machine lens switches from a working state to a non-working state, the driving mechanism 150 drives the lifting mechanism 140 to move toward the first position. Before reaching the first position, the lifting mechanism 140 can keep the movable door body 120 stationary, or it can lift the movable door body 120 a partial distance (but it is necessary to ensure that the movable door body 120 does not contact the fixed door body 110). When the lifting mechanism 140 reaches the first position, the lifting mechanism 140 lifts the movable door body 120 until the outer surface of the movable door body 120 is flush with the outer surface of the fixed door body 110.

[0088] When the optical machine lens switches from a non-working state to a working state, the lifting mechanism 140 is located in the first position and lowers the movable door body 120. After the outer surface of the movable door body 120 is located inside the fixed door body 110, the driving mechanism 150 drives the lifting mechanism 140 to move to the second position until the lifting mechanism 140 reaches the second position, so that the movable door body 120 is hidden inside the fixed door body 110.

[0089] The lifting mechanism 140 may be a servo motor, a telescopic cylinder, a folding telescopic frame, or the like, which is not limited here.

[0090] A projection device provided according to an embodiment of the second aspect of the present application is described below with reference to the accompanying drawings, including the sliding door module as described above.

[0091] like Figure 9 As shown, the projection device 900 includes a base 910 , which includes a cavity with an opening (not shown in the figure). The sliding door assembly 100 is configured at the opening, and the cavity is opened or closed by opening or closing the movable door body 120 .

[0092] The projection device 900 uses a sliding door module 100, which can effectively block the optical machine lens when closed to prevent dust accumulation on the optical machine lens, while ensuring the overall aesthetics of the device; when open, the optical machine lens is exposed, and the movable door body 120 is hidden inside the fixed door body 110, without occupying external space, ensuring the simplicity of the appearance. At the same time, since the sliding rail 130 and the fixed door body 110 are arranged in parallel, the thickness of the sliding door assembly 100 can be reduced, which is conducive to the miniaturized design of the projection equipment.

[0093] It should be noted that, unless there is any conflict, the features in the embodiments of this application can be combined with each other.

[0094] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0095] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A sliding door module, characterized in that: include: Fixed door body; Movable door body; A slide rail is located inside the fixed door body, and an extending direction of the slide rail is parallel to the fixed door body; a lifting mechanism, cooperating with the slide rail and connected to the movable door body, for driving the movable door body to rise or fall in a direction perpendicular to the extension direction of the slide rail; a driving mechanism connected to the lifting mechanism, and configured to drive the lifting mechanism to move on the slide rail, thereby driving the movable door body to move along the extension direction of the slide rail; The lifting mechanism includes a main body that cooperates with the slide rail and is parallel to the fixed door body, and a linkage assembly that movably connects the main body and the movable door body; The linkage assembly includes two connecting rods, and the two ends of each connecting rod respectively form a rotation range with the main body and the movable door body; The two connecting rods, the main body and the movable door body together form a quadrilateral structure; the rotating shaft of at least one of the rotating arms is an electrically controlled rotating shaft; The sliding door module assembly further includes a limiting member, which is arranged at the end of the sliding rail close to the fixed door body; When the main body moves to the first position, the limit member presses against the movable door body. The first position is the limit position of the movement of the lifting mechanism on the slide rail. When the lifting mechanism is in the first position, the movable door body is in a closed state. In the process of the main body moving on the slide rail, the movable door body is parallel to the fixed door body. After the movable door body reaches the first position, the electrically controlled rotating shaft rotates, driving the connecting rod to drive the movable door body to rise in a direction perpendicular to the slide rail until the movable door body is in a closed state.

2. The sliding door module according to claim 1, characterized in that: The lifting mechanism is used to lift the movable door body so that the outer surface of the movable door body is flush with the outer surface of the fixed door body; or to lower the movable door body so that the outer surface of the movable door body is located on one side of the inner surface of the movable door body.

3. The sliding door module according to claim 1, characterized in that: The lifting mechanism further includes an extension portion fixed to the main body and connected to the driving mechanism.

4. The sliding door module according to claim 1, characterized in that: The rotating shaft includes a rotating shaft and a sleeve that cooperate with each other; one of the rotating shaft and the sleeve is located at the end of the connecting rod, and the other of the rotating shaft and the sleeve is arranged on a mounting body, and the mounting body is the main body or the movable door body.

5. The sliding door module according to claim 1, characterized in that: The movable door body is located on a side of the main body close to the fixed door body.

6. The sliding door module according to claim 1, characterized in that: The driving mechanism is a screw motor, the output shaft of the screw motor is parallel to the extension direction of the slide rail, and the output shaft of the screw motor drives the lifting mechanism to move on the slide rail.

7. A projection device, characterized in that: The invention comprises the sliding door module according to any one of claims 1 to 6.

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