A door leaf frame, a central axis revolving door, and an interior partition door panel for a central axis revolving door.

Abstract

This utility model discloses a door leaf frame for a central axis revolving door, a central axis revolving door, and an interior partition door panel. The door leaf frame includes a left vertical frame, an upper horizontal frame, a right vertical frame, and a lower horizontal frame connected sequentially in a clockwise direction to form a rectangular frame. The left and right vertical frames are parallel and mirror-symmetrically arranged, as are the upper and lower horizontal frames. The left vertical frame is perpendicular to the upper horizontal frame. The left and right vertical frames are fixedly connected to the upper and lower horizontal frames respectively by assembly brackets. The left vertical frame includes a planar sidewall perpendicular to the horizontal plane and a vertical frame sidewall connected to the planar sidewall. The vertical frame sidewall is an arc-shaped or near-arc-shaped sidewall, and the lower horizontal frame sidewall of the upper horizontal frame is a curved sidewall. In this utility model, the door leaf frame edge is made into an arc shape, and there are no exposed screws after assembly, making the product appearance clearer and solving the problem of assembling arc-shaped door frames.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and more specifically, to a research and application device for an emergency escape intelligent door. The name of this utility model may also be a door leaf frame of a central axis revolving door, a central axis revolving door, and an interior partition door panel. Background Technology

[0002] Doors primarily serve to partition spaces, block views, and beautify living spaces in daily life. However, due to requirements regarding design style, application, and rotation angle, some situations necessitate the use of central axis revolving doors to replace ordinary doors, such as access systems in commercial buildings or screen doors within buildings.

[0003] A centrally mounted revolving door consists of a door frame and a glass core panel. Traditional door frames are mostly flat, with the outer perimeter of the frame, the side furthest from the glass mounting surface, being a flat structure. This design is aesthetically monotonous and doesn't quite align with the aesthetic demands of modern architecture. Furthermore, the flat side of the frame doesn't conform to the movement trajectory of the revolving door. Currently, in mid-to-high-end custom products, curved door frames are gradually becoming the mainstream choice, with the use of curved elements being a highly distinctive design feature. This means the overall door frame retains a square structure, while the outer surface of the frame is curved.

[0004] Chinese Patent Document 1 (Application No.: 202110953047.X, Application Date: 2021.08.19) discloses a central axis revolving door and its cutting and inlaying method, including a door body (1) and a door frame (2) rotatably connected thereto. The door body (1) includes a frame (3) and a decorative structure (4). The decorative structure (4) is connected to the inner side of the frame (3). The decorative structure (4) includes a decorative panel (5) and a lattice section (6). The decorative panel (5) and the lattice section (6) are alternately arranged. The door frame (1) is constructed by splicing the first component (6-1) in both longitudinal and transverse directions. The first component (6-1) is a strip-shaped component. The decorative panel (5) is made using a cutting and inlay process. The frame (3) and the decorative structure (4) are both made of aluminum-zinc coated steel plates. The frame (3) is provided with a first connecting piece (7), and the door frame (2) is provided with a second connecting piece (8). The first connecting piece (7) and the second connecting piece (8) are rotatably connected by a pivot (9). The axis of the pivot (9) is vertically set and coincides with the central axis of the door body (1). In this solution, steel plates are used to improve the service life of the door panel, and decorative structures are used to improve the decorative effect. However, this solution does not meet the demand for curved door frames in mid-to-high-end customized products.

[0005] In mid-to-high-end customized products, the frame of the central axis revolving door is often made of aluminum alloy, which is obtained through extrusion. However, during the installation process, the curved outer surface increases the difficulty of installation. The connection between the vertical frame and the horizontal frame is prone to problems such as misalignment, uneven gaps, and appearance defects. Moreover, the appearance effect aims for no exposed screws. These are the technical problems that urgently need to be solved in this field. Utility Model Content

[0006] In view of this, the present invention provides a door frame to solve the problems of misalignment, uneven gaps, and appearance defects that occur during the installation of door frames with an arc-shaped outer surface in the prior art.

[0007] In a first aspect, this application provides a door frame for a central axis revolving door. The door frame includes a left vertical frame, an upper horizontal frame, a right vertical frame, and a lower horizontal frame that are connected sequentially in a clockwise direction and form a rectangular frame. The left vertical frame is parallel to and mirror-symmetrically arranged with the right vertical frame, the upper horizontal frame is parallel to and mirror-symmetrically arranged with the lower horizontal frame, and the left vertical frame is perpendicular to the upper horizontal frame. The left vertical frame is fixedly connected to the upper horizontal frame and the lower horizontal frame respectively by assembly brackets, and the right vertical frame is fixedly connected to the upper horizontal frame and the lower horizontal frame respectively by assembly brackets.

[0008] The left vertical frame is a semi-circular arc-shaped cylinder with a vertically continuous corner bracket mounting cavity, and the upper and lower ends of the left vertical frame are mirror-symmetrically arranged. The cross-sectional shape of the corner bracket mounting cavity is "π". The left vertical frame is composed of a planar sidewall perpendicular to the horizontal plane and a vertical frame sidewall connected to the planar sidewall. The vertical frame sidewall is an arc-shaped or near-arc-shaped sidewall, and the central angle of the arc of the horizontal cross-section of the vertical frame sidewall is n, 0° < n ≤ 180°. The planar sidewall is located at the end closer to the right vertical frame, and the vertical frame sidewall is located at the end farther from the right vertical frame. The upper surface of the left vertical frame is parallel to the horizontal plane. The lower end face of the left vertical frame is parallel and axially symmetrically arranged; the outer surface of the planar sidewall near the right vertical frame is provided with a vertically penetrating vertical door leaf mounting groove that is recessed towards the sidewall of the vertical frame, wherein, in the vertical direction, the cross-sectional shape of the vertical door leaf mounting groove is rectangular; the vertical door leaf mounting groove is axially symmetrical along the vertical axis of the planar sidewall, and the upper end face of the vertical door leaf mounting groove is lower than the upper end face of the left vertical frame, and the lower end face of the vertical door leaf mounting groove is higher than the lower end face of the left vertical frame; the upper and lower ends of the planar sidewall are respectively provided with at least two fastener mounting holes penetrating the planar sidewall;

[0009] The upper horizontal frame is a column with a horizontally extending corner bracket mounting cavity running horizontally to the left and right. The left and right ends of the upper horizontal frame are mirror-symmetrically arranged. The vertical cross-sectional shape of the corner bracket mounting cavity is "π". The upper horizontal frame is composed of a horizontal frame sidewall and an upper horizontal frame sidewall parallel to the horizontal plane. The upper horizontal frame sidewall is a planar wall, while the horizontal frame sidewall is an arc-shaped or near-arc-shaped sidewall. The central angle of the arc of the horizontal frame sidewall's vertical cross-section is r, where 0° < r ≤ 180°. The horizontal frame sidewall is located at the end closest to the lower horizontal frame. The upper horizontal frame sidewall is located at the end away from the lower horizontal frame; the horizontal frame sidewall has a door leaf mounting groove that opens downwards, extends horizontally, and is recessed towards the upper horizontal frame sidewall, wherein, in the horizontal direction, the cross-sectional shape of the door leaf mounting groove is rectangular; the door leaf mounting groove is axially symmetrical about the central axis of the horizontal frame sidewall in the horizontal direction; in the horizontal direction, the left and right ends of the upper horizontal frame sidewall are respectively provided with corner bracket mounting parts, the upper plane of the corner bracket mounting parts being lower than the upper surface of the upper horizontal frame sidewall; a through hole is provided at the center of the upper horizontal frame sidewall;

[0010] The assembled corner bracket includes a first arm and a second arm, which are connected by a first connecting part. The first arm, the second arm, and the first connecting part are all cuboid structures. The first arm has a "π" shaped cross-section in the vertical direction, and the second arm has a "π" shaped cross-section in the horizontal direction. The first arm and the second arm form an angle of 90°. The first arm is fixedly connected to the upper horizontal frame and / or the lower horizontal frame. The second arm is fixedly connected to the left vertical frame and / or the right vertical frame. The arm shapes of the first arm and the second arm are respectively adapted to the mounting cavity of the horizontal frame corner bracket and the mounting cavity of the vertical frame corner bracket.

[0011] Optionally, the door frame further includes a decorative cover, which consists of a semi-circular cover plate and a square cover plate horizontally connected to the diameter of the semi-circular cover plate. The decorative cover is tensioned and installed at the corner bracket mounting part of the upper horizontal frame and / or the lower horizontal frame, and at the end face of the left vertical frame and / or the right vertical frame. The mating surface of the decorative cover is provided with a positioning pin.

[0012] The corner bracket mounting part, the end face of the left vertical frame and / or the right vertical frame are all provided with positioning holes that cooperate with the decorative cover.

[0013] Optionally, the vertical frame door panel mounting groove divides the planar sidewall into an axisymmetric first planar sidewall region and a second planar sidewall region along the vertical direction; in the first planar sidewall region and the second planar sidewall region respectively, the upper end face of the vertical frame door panel mounting groove is connected to the upper end face of the planar sidewall through a U-shaped groove, the lower end face of the U-shaped groove is lower than the upper end face of the vertical frame door panel mounting groove, and along the horizontal direction, the wall thickness 'a' of the U-shaped groove is less than the overall thickness 'b' of the vertical frame door panel mounting groove, wherein the overall thickness 'b' of the vertical frame door panel mounting groove is the sum of the thickness of the groove and the wall thickness of the groove.

[0014] Optionally, the central angle n is 180°, and the sidewall of the vertical frame is an arc-shaped sidewall;

[0015] The central angle n is 0° < n < 180°. The sidewall of the vertical frame is a semi-circular arc-shaped sidewall, which is composed of a superior arc sidewall and two parallel planar sidewalls I and II. The planar sidewalls I and II are perpendicular to the horizontal plane. In the vertical direction, the two ends of the arc surface of the superior arc sidewall are connected to the two ends of the planar sidewalls through the planar sidewalls I and II, respectively.

[0016] Optionally, the left vertical frame is further provided with a cavity that runs vertically through it. The vertical frame corner bracket mounting cavity is located at one end near the planar sidewall. The inner wall of the vertical frame corner bracket mounting cavity includes a vertical frame first plane inner wall that is arranged in a vertical direction. The vertical frame first plane inner wall separates the cavity from the vertical frame corner bracket mounting cavity.

[0017] The inner wall of the vertical frame corner bracket mounting cavity also includes a second plane inner wall of the vertical frame that is parallel to the inner wall of the first plane of the vertical frame, and the first plane inner wall of the vertical frame and the second plane inner wall of the vertical frame are connected by a connecting part;

[0018] The inner wall of the vertical frame corner bracket mounting cavity also includes a vertical frame third plane inner wall, which is perpendicularly connected to the vertical frame second plane inner wall. The outer wall of the vertical frame door leaf mounting groove is connected to the vertical frame third plane inner wall through the vertical frame fourth plane inner wall, thus forming the inner wall of the vertical frame corner bracket mounting cavity. The outer wall of the vertical frame door leaf mounting groove includes a first plane wall parallel to the vertical frame first plane inner wall and a second plane wall parallel to the vertical frame third plane inner wall. The second plane wall is perpendicularly connected to the vertical frame fourth plane inner wall, and the first plane wall and the vertical frame second plane inner wall are located on the same plane.

[0019] The vertical inner wall of the third plane of the vertical frame is also provided with a cuboid-shaped limiting strip in the vertical direction.

[0020] Optionally, the central angle r is 180°, and the sidewall of the horizontal frame is an arc-shaped sidewall;

[0021] The central angle n is 0° < n < 180°. The horizontal frame sidewalls include a lower horizontal frame sidewall, a front horizontal frame sidewall, and / or a rear horizontal frame sidewall. The front and rear horizontal frame sidewalls are planar walls, while the lower horizontal frame sidewall is an arc-shaped sidewall. The lower horizontal frame sidewall is smoothly connected to the front and rear horizontal frame sidewalls. When the horizontal frame sidewalls include the front and rear horizontal frame sidewalls, the front and rear horizontal frame sidewalls are parallel and mirror images of each other. On the outer surface of the upper horizontal frame, the front and / or rear horizontal frame sidewalls are respectively perpendicular to the upper horizontal frame sidewall. The lower horizontal frame sidewall is provided with a mounting groove for the horizontal frame door leaf. Specifically, appropriate revolving door hardware is selected based on the structure of the horizontal frame sidewalls.

[0022] Optionally, in the horizontal frame corner bracket mounting cavity, the inner wall of the upper horizontal frame sidewall serves as a horizontal wall, which is connected to the inner sidewall of the horizontal frame via a first arc-shaped connecting part. The inner sidewall of the horizontal frame is connected to the inner sidewall of the lower horizontal frame via a second arc-shaped connecting part. The inner sidewall of the lower horizontal frame is composed of an "I"-shaped horizontal inner wall extending into the horizontal frame corner bracket mounting cavity with the upper bottom of the horizontal frame door panel mounting groove as a reference, and the sidewall of the horizontal frame door panel mounting groove. The second arc-shaped connecting part is connected to the sidewall of the horizontal frame door panel mounting groove within the horizontal frame corner bracket mounting cavity.

[0023] Optionally, the inner sidewall of the horizontal frame includes a first inner sidewall and a second inner sidewall mirrored in the vertical direction. The first inner sidewall is a cuboid protrusion between the first arc-shaped connecting portion and the second arc-shaped connecting portion. The end face of the cuboid protrusion near the "I"-shaped horizontal inner wall is provided with a groove I that extends horizontally and is recessed in a direction away from the "I"-shaped horizontal inner wall. On the vertical plane in the left and right direction, the orthographic projection of the groove portion of the groove I is rectangular. The upper end face of the "I"-shaped horizontal inner wall is parallel to the inner wall of the upper horizontal frame sidewall. The upper end face of the "I"-shaped horizontal inner wall and the upper end face of the inner sidewall of the horizontal frame are located in the same plane.

[0024] Optionally, the assembled corner bracket is a planar mirror-symmetric structure along the vertical direction;

[0025] The first support arm has a first mating groove recessed towards the inside of the assembly bracket. The first mating groove is a recess that matches a protruding portion within the mounting cavity of the upper and / or lower horizontal frame brackets. The orthographic projection of the recess in the left-right vertical plane is rectangular. The first mating groove is connected to the outer surface of the first support arm via a second connecting portion located at the end furthest from the first connecting portion. The second connecting portion includes a smoothly connected first inclined connecting portion and a first arc-shaped connecting portion, wherein the first inclined connecting portion is recessed towards the outer surface of the first support arm in the horizontal direction. The surface connection is such that the angle between the first inclined connecting part and the horizontal outer surface of the first support arm in the vertical direction is an obtuse angle, and the first arc surface connecting part is connected to the first mating groove; on the horizontal outer surface of the first support arm, there is a fastener mounting hole; on the inner surface of the horizontal surface of the first support arm, there is also a first groove that matches the protrusion in the mounting cavity of the horizontal corner bracket of the upper horizontal frame and / or the lower horizontal frame and is recessed towards the outer surface of the horizontal surface of the first support arm, and the groove of the first groove in the horizontal projection of the outer surface of the first support arm is rectangular.

[0026] The second support arm has a second mating groove recessed towards the inner side of the assembled corner bracket. The second mating groove is a recess that matches the protruding portion within the mounting cavity of the left and / or right vertical frame corner brackets. The orthographic projection of the recess in the left-right vertical plane is rectangular. The second mating groove is connected to a first surface of the second support arm via a third connecting portion. The first surface is located near the side wall of the vertical frame within the mounting cavity of the corner bracket. The third connecting portion includes a smoothly connected second inclined surface connecting portion and a second arcuate surface connecting portion. The second support arm is connected to the first surface of the second support arm. The angle between the second inclined connecting part and the first surface of the second support arm in the horizontal direction is an obtuse angle. The second arc-shaped connecting part is connected to the second mating groove. On the second support arm, the first surface is provided with fastener mounting holes. On the inner surface of the second support arm opposite to the first surface, there is also a second groove that matches the protrusion in the mounting cavity of the left vertical frame and / or the right vertical frame and is recessed towards the first surface. The groove of the second groove is rectangular in the orthographic projection on the first surface.

[0027] The second mating groove is perpendicularly connected to the first mating groove.

[0028] Secondly, this utility model provides a central axis revolving door, including a door leaf frame and a core plate. The door leaf frame is the aforementioned door leaf frame, and the core plate is embedded in a rectangular frame enclosed by the left vertical frame, the upper horizontal frame, the right vertical frame, and the lower horizontal frame.

[0029] The central axis revolving door rotates around its longitudinal centerline.

[0030] In this application, the core board may be, but is not limited to, made of glass.

[0031] Thirdly, this utility model provides an interior partition door panel, which includes at least three sets of the above-mentioned central axis rotating doors arranged in series. Each central axis rotating door in the interior partition door panel can rotate independently.

[0032] Compared with the prior art, the door frame, the central axis revolving door, and the interior partition door panel provided by this utility model achieve at least the following beneficial effects:

[0033] First, in this utility model, the product frame adopts an arc-shaped element, breaking through the limitations of traditional square / flat structures. The smooth arc-shaped design not only gives the product a unique visual identity but also optimizes the modern and artistic aesthetics of the overall appearance. The arc-shaped structure can effectively reduce the visual harshness caused by sharp corners, forming a more natural integration with the architectural space, which is especially suitable for high-end commercial and hotel scenarios with high decorative requirements. In addition, the arc-shaped frame of the door frame increases the fit of the revolving door's movement trajectory during rotation.

[0034] Secondly, in the connection design of the horizontal and vertical frames, the corner brackets are precisely fitted with the pre-reserved grooves or limiting protrusions on the frame to ensure that the horizontal and vertical frames are accurately aligned before the screws are fixed during installation, avoiding positional deviations caused by manual operation or external forces. Specifically, the connecting end of the corner bracket has a groove structure that matches the protrusions of the vertical / horizontal frame, limiting lateral or longitudinal displacement. When the screws are fixed laterally, the tightening force of the corner bracket further locks the frame position, ensuring that the entire connection structure remains stably aligned during installation. This design not only reduces the difficulty of adjustment during installation and improves construction efficiency, but also ensures the splicing accuracy of each frame of the door, avoiding problems such as uneven gaps, appearance defects, or operational jams caused by misalignment, thus ensuring the overall stability and smooth operation of the revolving door.

[0035] Third, through the precise fit between the horizontal and vertical frame edges and the assembly corner brackets, the core board and horizontal frame can completely cover the connecting screws of the vertical frame when fixed, forming the first layer of hidden structure. The top and bottom decorative covers further conceal the screws of the horizontal frame, ultimately achieving an effect where there are no exposed screws on the product's appearance. This design completely solves the aesthetic defects caused by exposed screws in traditional revolving doors, maintaining a complete and integrated visual effect on the door surface and enhancing the product's high-end texture. At the same time, the hidden screw structure can effectively prevent screws from rusting and loosening due to dust and moisture corrosion, extending the product's service life.

[0036] Of course, any product implementing this utility model does not necessarily need to achieve all of the above technical effects at the same time.

[0037] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0038] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0039] Figure 1 This is a structural schematic diagram of a door frame provided by this utility model;

[0040] Figure 2 This is an exploded view of a door frame provided by this utility model;

[0041] Figure 3 This utility model provides an assembly diagram of the corner bracket and the left vertical frame in a door frame.

[0042] Figure 4 This is a partially enlarged schematic diagram of the end structure of the left vertical frame in a door frame provided by this utility model;

[0043] Figure 5 This is a schematic diagram of the upper horizontal frame in a door frame provided by this utility model;

[0044] Figure 6 This is a partially enlarged schematic diagram of the end structure of the upper horizontal frame in a door frame provided by this utility model;

[0045] Figure 7 This is a schematic diagram of the structure of an angle bracket assembled in a door frame provided by this utility model;

[0046] Figure 8 This is a schematic diagram of a decorative cover fastened into a door frame provided by this utility model;

[0047] Figure 9 This is a structural schematic diagram of a central axis revolving door provided by this utility model;

[0048] Figure 10 This is a schematic diagram illustrating the fixing of the horizontal and vertical frame sides during the installation of a central axis revolving door provided by this utility model;

[0049] Figure 11 This is a schematic diagram of the structure of a central axis revolving door after assembly, provided by this utility model;

[0050] Figure 12This is a structural schematic diagram of an indoor partition door panel provided by this utility model, wherein Figure a shows the closed state and Figure b shows the open state.

[0051] The attached figures are numbered as follows:

[0052] 1. Left vertical frame; 11. Vertical frame corner bracket mounting cavity; 111. Inner wall of the first plane of the vertical frame; 112. Inner wall of the second plane of the vertical frame; 113. Inner wall of the third plane of the vertical frame; 114. Outer wall of the groove; 115. Inner wall of the fourth plane of the vertical frame; 116. Limiting strip; 12. Cavity; 13. Planar side wall; 131. First area of ​​the planar side wall; 132. Second area of ​​the planar side wall; 133. Vertical frame door leaf mounting groove; 14. Vertical frame side wall; 2. Right vertical frame; 3. Upper horizontal frame; 31. Horizontal frame corner bracket mounting cavity; 311. First arc-shaped connecting part; 312. Inner side wall of the horizontal frame; 3121. Inner side wall of the first horizontal frame; 3122. Inner side wall of the second horizontal frame; 313. Second arc-shaped connecting part; 314, inner side wall of lower horizontal frame; 3141, "I"-shaped horizontal inner wall; 3142, side wall; 32, side wall of upper horizontal frame; 321, corner bracket mounting part; 322, through hole; 33, side wall of front horizontal frame; 34, side wall of lower horizontal frame; 341, horizontal frame door leaf mounting groove; 35, side wall of rear horizontal frame; 4, lower horizontal frame; 5, assembled corner bracket; 51, first support arm; 511, first mating groove; 512, second connecting part; 513, first groove; 52, second support arm; 521, second mating groove; 522, third connecting part; 523, second groove; 53, first connecting part; 6, decorative cover; 7, core board; 8, screw. Detailed Implementation

[0053] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0054] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0055] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0056] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0057] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0058] Example 1

[0059] Reference Figures 1-8 As shown, Figure 1 This is a structural schematic diagram of a door frame provided by this utility model; Figure 2 This is an exploded view of a door frame provided by this utility model; Figure 4 This is a partially enlarged schematic diagram of the end structure of the left vertical frame in a door frame provided by this utility model; Figure 5 This is a schematic diagram of the upper horizontal frame in a door frame provided by this utility model; Figure 6 This is a partially enlarged schematic diagram of the end structure of the upper horizontal frame in a door frame provided by this utility model; Figure 7 This is a schematic diagram of the structure of an angle bracket assembled in a door frame provided by this utility model; Figure 8 This is a schematic diagram of a decorative cover that is fastened into a door frame, as provided by this utility model.

[0060] This embodiment provides a door frame for a centrally mounted revolving door, such as... Figure 2 As shown, the door frame includes a left vertical frame 1, an upper horizontal frame 3, a right vertical frame 2, and a lower horizontal frame 4 connected in a clockwise direction to form a rectangular frame. The left vertical frame 1 and the right vertical frame 2 are parallel and mirror-symmetrically arranged, the upper horizontal frame 3 and the lower horizontal frame 4 are parallel and mirror-symmetrically arranged, and the left vertical frame 1 is perpendicular to the upper horizontal frame 3. The left vertical frame 1 is fixedly connected to the upper horizontal frame 3 and the lower horizontal frame 4 respectively by assembly corner brackets 5, and the right vertical frame 2 is fixedly connected to the upper horizontal frame 3 and the lower horizontal frame 4 respectively by assembly corner brackets 5.

[0061] like Figure 4As shown, the left vertical frame 1 is a semi-circular arc-shaped column with a vertically penetrating corner bracket mounting cavity 11, and the upper and lower ends of the left vertical frame 1 are mirror-symmetrically arranged. The cross-sectional shape of the corner bracket mounting cavity 11 is "π". The left vertical frame 1 is composed of a planar sidewall 13 perpendicular to the horizontal plane and a vertical frame sidewall 14 connected to the planar sidewall 13. The vertical frame sidewall 14 is an arc-shaped sidewall or a near-arc-shaped sidewall. The central angle of the arc of the cross-section of the vertical frame sidewall 14 along the horizontal direction is n, where 0° < n ≤ 180°. The planar sidewall 13 is located at the end closer to the right vertical frame 2, and the vertical frame sidewall 14 is located at the end farther from the right vertical frame 2. The upper surface of the left vertical frame 1 is parallel to the horizontal plane. The lower end face of the left vertical frame 1 is parallel and axially symmetrical; the outer surface of the planar sidewall 13 near the right vertical frame 2 is provided with a vertically penetrating vertical door leaf mounting groove 133 that is recessed towards the vertical frame sidewall 14, wherein the groove cross-section of the vertical door leaf mounting groove 133 is rectangular in shape; the vertical door leaf mounting groove 133 is axially symmetrical along the vertical axis of the planar sidewall 13, and the upper end face of the vertical door leaf mounting groove 133 is lower than the upper end face of the left vertical frame 1, and the lower end face of the vertical door leaf mounting groove 133 is higher than the lower end face of the left vertical frame 1; the upper and lower ends of the planar sidewall 13 are respectively provided with at least two fastener mounting holes penetrating the planar sidewall;

[0062] The upper horizontal frame 3 is a column with a horizontally extending corner bracket mounting cavity 31, and the left and right ends of the upper horizontal frame 3 are mirror-symmetrically arranged. The vertical cross-sectional shape of the corner bracket mounting cavity 31 is "π". The upper horizontal frame 3 is composed of a horizontal frame sidewall and an upper horizontal frame sidewall 32 arranged parallel to the horizontal plane. The upper horizontal frame sidewall 32 is a flat wall, and the horizontal frame sidewall is an arc-shaped sidewall or a near-arc-shaped sidewall. The central angle of the arc of the horizontal frame sidewall's vertical cross-section is r, where 0° < r ≤ 180°. The horizontal frame sidewall is located at the end closer to the lower horizontal frame 4, and the upper horizontal frame sidewall 32 is located away from the lower horizontal frame 4. One end; the side wall of the horizontal frame is provided with a horizontal frame door leaf mounting groove 341 that opens downward, runs through the left and right sides, and is recessed in the direction of the upward horizontal frame side wall 32. In the horizontal direction, the groove cross-section of the horizontal frame door leaf mounting groove 341 is rectangular, and the horizontal frame door leaf mounting groove 341 is axially symmetrical along the central axis of the horizontal frame side wall. Along the horizontal direction, the left and right ends of the upper horizontal frame side wall 32 are respectively provided with corner bracket mounting parts 321, and the upper plane of the corner bracket mounting parts 321 is lower than the upper surface of the upper horizontal frame side wall 32. A through hole is provided at the center of the upper horizontal frame side wall 32. The through hole 322 is used to install the central axis revolving door hardware.

[0063] like Figure 7As shown, the assembled corner bracket 5 includes a first arm 51 and a second arm 52. The first arm 51 and the second arm 52 are connected by a first connecting part 53. The first arm 51, the second arm 52, and the first connecting part 53 are all cuboid structures. The first arm 51 has a "π" shaped cross-section in the vertical direction, and the second arm 52 has a "π" shaped cross-section in the horizontal direction. The first arm 51 and the second arm 52 form an angle of 90°. The first arm 51 is fixedly connected to the upper horizontal frame 3 and / or the lower horizontal frame 4. The second arm 52 is fixedly connected to the left vertical frame 1 and / or the right vertical frame 2. The arm shapes of the first arm 51 and the second arm 52 are adapted to the horizontal frame corner bracket mounting cavity 31 and the vertical frame corner bracket mounting cavity 11, respectively.

[0064] Specifically, the left vertical frame 1 is a semi-circular arc-shaped column with a vertically continuous corner bracket mounting cavity 11. The left vertical frame 1 includes a planar sidewall 13 perpendicular to the horizontal plane and a vertical frame sidewall 14 connected to the planar sidewall 13. The vertical frame sidewall 14 is an arc-shaped sidewall, meaning that the central angle η of the arc of the cross-section of the vertical frame sidewall 14 along the horizontal direction is 180°. The vertical frame sidewall with a central angle of 180° ensures a smooth transition of the entire side surface, without sharp edges, making it more aesthetically pleasing. Furthermore, the 180° vertical frame sidewall increases the fit of the revolving door's movement trajectory during rotation.

[0065] The assembly bracket 5 includes a first arm 51 and a second arm 52. The first arm 51 and the second arm 52 are connected by a first connecting part 53, and the first arm 51 and the second arm 52 form an angle of 90°.

[0066] The vertical frame door leaf mounting groove 133 divides the planar sidewall 13 into two axially symmetrical regions along the vertical direction, namely the first region 131 and the second region 132 of the planar sidewall. U-shaped grooves are provided in the first region 131 and the second region 132 of the planar sidewall. The upper end face of the vertical frame door leaf mounting groove 133 is connected to the upper end face of the planar sidewall 13 through the U-shaped groove. The lower end face of the U-shaped groove is lower than the upper end face of the vertical frame door leaf mounting groove 133. Along the horizontal direction, the wall thickness a of the U-shaped groove is less than the overall thickness b of the vertical frame door leaf mounting groove 133. The overall thickness b of the vertical frame door leaf mounting groove 133 is the sum of the thickness of the groove and the wall thickness of the groove. The wall thickness a of the U-shaped groove is the wall thickness of the planar sidewall 13.

[0067] To ensure the matching degree of the horizontal and vertical frames during the assembly process, the arm shapes of the first arm 51 and the second arm 52 need to be adapted to the horizontal frame corner bracket mounting cavity 31 and the vertical frame corner bracket mounting cavity 11, respectively.

[0068] Specifically, in this embodiment, as Figure 4 , Figure 7As shown, the left vertical frame 1 is also provided with a cavity 12 that runs vertically through it. The vertical frame corner bracket mounting cavity 11 is located at one end of the near-plane side wall 13. The inner wall of the vertical frame corner bracket mounting cavity 11 includes the vertical frame first plane inner wall 111 arranged in the vertical direction. The vertical frame first plane inner wall 111 separates the cavity 12 from the vertical frame corner bracket mounting cavity 11.

[0069] The inner wall of the vertical frame corner bracket mounting cavity 11 also includes a second vertical frame plane inner wall 112, which is parallel to the inner wall 111 of the first vertical frame plane. The first vertical frame plane inner wall 111 and the second vertical frame plane inner wall 112 are connected by a connecting part. The inner wall of the vertical frame corner bracket mounting cavity also includes a third vertical frame plane inner wall 113, which is perpendicularly connected to the second vertical frame plane inner wall 112. The outer wall 114 of the groove of the vertical frame door leaf mounting groove 133 is connected to the third vertical frame plane inner wall 113 by a fourth vertical frame plane. The inner wall 115 is connected to form the inner cavity wall of the vertical frame corner bracket mounting cavity 11. The outer wall 114 of the vertical frame door leaf mounting groove 133 includes a first plane wall parallel to the inner wall 111 of the first plane of the vertical frame and a second plane wall parallel to the inner wall 113 of the third plane of the vertical frame. The second plane wall is perpendicularly connected to the inner wall 115 of the fourth plane of the vertical frame. The first plane wall and the inner wall 112 of the second plane of the vertical frame are located on the same plane. A cuboid-shaped limiting strip 116 is also provided vertically on the inner wall 113 of the third plane of the vertical frame.

[0070] Correspondingly, on the assembly corner bracket 5, the side wall of the second support arm 52 is provided with a second mating groove 521 recessed towards the inside of the assembly corner bracket 5. The second mating groove 521 is a groove that matches the protrusion in the vertical frame corner bracket mounting cavity 11 of the left vertical frame 1 and / or the right vertical frame 2. The orthographic projection of the groove of the second mating groove 521 on the vertical plane in the left and right directions is rectangular. The second mating groove 521 is connected to the first surface in the second support arm 52 through a third connecting part 522. The first surface is the end near the side wall 14 of the vertical frame corner bracket mounting cavity 11. The third connecting part 522 includes a smoothly connected second inclined connecting part and a second circular part. The arc-shaped connecting part, wherein the second inclined connecting part is connected to the first surface of the second support arm 52, and the angle between the second inclined connecting part and the first surface of the second support arm 52 in the horizontal direction is an obtuse angle, and the second arc-shaped connecting part is connected to the second mating groove 521; on the second support arm 52, the first surface is provided with fastener mounting holes; on the inner surface of the second support arm 52 opposite to the first surface, there is also a second groove 523 that matches the protrusion in the vertical frame corner bracket mounting cavity 11 of the left vertical frame 1 and / or the right vertical frame 2 and is recessed towards the first surface, and the groove of the second groove 523 is rectangular in the orthogonal projection of the first surface.

[0071] In summary, the vertical frame corner bracket mounting cavity 11 within the vertical frame is adapted to the structure of the second support arm 52 of the assembly corner bracket 5. This ensures that the second support arm 52 of the assembly corner bracket can be installed in the vertical frame corner bracket mounting cavity 11. Furthermore, through the cooperation of limiting structures such as limiting strips and grooves, as well as the fixation of fasteners, the stability of the vertical frame corner bracket mounting cavity 11 and the second support arm 52 of the assembly corner bracket 5 after assembly is ensured.

[0072] It should be noted that the structural design of the vertical frame corner bracket mounting cavity 11 and the second support arm 52 of the assembly corner bracket 5, through reserved grooves, limiting protrusions, and other structures, forms a precise fit between the two, restricting any lateral or longitudinal displacement between them, and ensuring accurate alignment before the screws are tightened during installation. After tightening the screws, the stability between the vertical frame and the corner bracket, and between the vertical frame and the horizontal frame, is further strengthened.

[0073] Similarly, the first arm 51 on the assembled corner bracket 5 and the horizontal frame corner bracket mounting cavity 31 on the horizontal frame maintain structural compatibility.

[0074] Specifically, in this embodiment, as Figure 5 , Figure 6 , Figure 7 As shown, the upper horizontal frame 3 is a column formed by the sequential connection of the upper horizontal frame side wall 32, the front horizontal frame side wall 33, the lower horizontal frame side wall 34, and the rear horizontal frame side wall 35. The upper horizontal frame side wall 32, the front horizontal frame side wall 33, and the rear horizontal frame side wall 35 are all planar walls, while the lower horizontal frame side wall 34 is an arc-shaped side wall, meaning that the central angle of the arc of the horizontal frame side wall along the vertical direction is less than 180°. The lower horizontal frame side wall 34 is smoothly connected to the front horizontal frame side wall 33 and the rear horizontal frame side wall 35, respectively. The front horizontal frame side wall 33 and the rear horizontal frame side wall 35 are parallel and mirror images of each other. On the outer surface of the upper horizontal frame 3, the front horizontal frame side wall 33, the rear horizontal frame side wall 34, and the rear horizontal frame side wall 35 are connected to each other. The horizontal frame sidewalls 35 are respectively perpendicular to the upper horizontal frame sidewall 32; the lower horizontal frame sidewall 34 is provided with a horizontal frame door leaf mounting groove 341 that opens downward and runs through the left and right sides, and the horizontal frame door leaf mounting groove 341 is symmetrical about the central axis of the lower horizontal frame sidewall 34 in the horizontal direction; it should be noted that, in this embodiment, according to the size of the selected rotating hardware, a curved sidewall structure with a central angle of less than 180° is selected, and it is connected to the upper horizontal frame sidewall 32 in a straight edge form to ensure that one side of the rotating hardware is exposed; if a concealed rotating hardware is selected, a curved sidewall structure with a central angle of 180° can be selected;

[0075] The horizontal frame corner bracket mounting cavity 31 uses the inner wall of the upper horizontal frame sidewall 32 as a horizontal wall, and is connected to the inner sidewall 312 of the horizontal frame through a first arc-shaped connecting part 311. The inner sidewall 312 of the horizontal frame is connected to the inner sidewall 314 of the lower horizontal frame through a second arc-shaped connecting part 313. The inner sidewall 314 of the lower horizontal frame is composed of an "I"-shaped horizontal inner wall 3141 extending into the horizontal frame corner bracket mounting cavity 31 with the upper bottom of the horizontal frame door leaf mounting groove 341 as a reference, and the sidewall 3142 of the horizontal frame door leaf mounting groove 341. The second arc-shaped connecting part 313 is connected to the sidewall 3142 of the horizontal frame door leaf mounting groove 341 within the horizontal frame corner bracket mounting cavity 31. The inner sidewall 312 of the horizontal frame includes a first inner sidewall 3121 and a second inner sidewall 3121 mirror-imaged in the vertical direction. The inner wall 3121 of the first horizontal frame is a cuboid protrusion located between the first arc-shaped connecting part 311 and the second arc-shaped connecting part 313. The end face of the cuboid protrusion, near the "I"-shaped horizontal inner wall 3141, has a groove I that extends horizontally and extends laterally, recessing away from the "I"-shaped horizontal inner wall 3141. In the vertical plane in the left-right direction, the orthographic projection of the groove I is rectangular. The upper end face of the "I"-shaped horizontal inner wall 3141 is parallel to the inner wall of the upper horizontal frame side wall 32. The upper end face of the "I"-shaped horizontal inner wall 3141 and the upper end face of the inner wall 312 of the horizontal frame are located in the same plane, ensuring the fitting clearance during assembly and preventing misalignment during the installation of the horizontal frame and the corner bracket.

[0076] Correspondingly, on the assembly bracket 5, the side wall of the first support arm 51 is provided with a first mating groove 511 recessed towards the inside of the assembly bracket 5. The first mating groove 511 is a groove that matches the protrusion in the bracket mounting cavity 31 of the upper horizontal frame 3 and / or the lower horizontal frame 4. The orthographic projection of the groove of the first mating groove 511 on the vertical plane in the left-right direction is rectangular. The first mating groove 511 is connected to the outer surface of the first support arm 51 through a second connecting part 512. The second connecting part 512 is located at the end away from the first connecting part 53. The second connecting part 512 includes a first inclined connecting part and a first arc-shaped connecting part that are smoothly connected, wherein the first inclined connecting part and the first arc-shaped connecting part are connected to the first The horizontal outer surface of the support arm 51 is connected, and the angle between the first inclined connecting part and the vertical projection of the horizontal outer surface of the first support arm 51 is an obtuse angle. The first arc surface connecting part is connected to the first mating groove 511. Fastener mounting holes are provided on the horizontal outer surface of the first support arm 51. On the inner surface of the horizontal surface of the first support arm 51, a first groove 513 is provided that matches the protrusion in the mounting cavity 31 of the upper and / or lower horizontal frame and is recessed towards the outer surface of the horizontal surface of the first support arm 51. The groove of the first groove 513 is rectangular in the orthographic projection of the horizontal outer surface of the first support arm 51.

[0077] The structural design of the horizontal frame corner bracket mounting cavity 31 and the first support arm 51 of the assembly corner bracket 5, through pre-reserved grooves and limiting protrusions, forms a precise fit between the two, limiting any lateral or longitudinal displacement and ensuring accurate alignment before the screws are tightened during installation. After tightening the screws, the stability between the vertical frame and the corner bracket, and between the vertical frame and the horizontal frame, is further strengthened. Furthermore, the structural design of the horizontal frame allows it to initially cover the fixing screws of the vertical frame during fixing, forming a first-layer hidden structure.

[0078] In the above, the horizontal frame corner bracket mounting cavity 31 inside the horizontal frame is adapted to the structure of the first support arm 51 of the assembly corner bracket 5, which not only ensures that the first support arm 51 of the assembly corner bracket can be installed in the horizontal frame corner bracket mounting cavity 31, but also ensures the stability of the horizontal frame corner bracket mounting cavity 31 and the first support arm 51 of the assembly corner bracket 5 after assembly through the cooperation of limiting structures such as grooves and protrusions, as well as the fixation of fasteners.

[0079] In this embodiment, the second mating groove 521 is vertically connected to the first mating groove 511, and the assembly bracket 5 has a planar mirror symmetrical structure along the vertical direction. The vertical connection between the second mating groove and the first mating groove ensures that the vertical frame and the horizontal frame are not easily misaligned during assembly, making installation convenient.

[0080] In this embodiment, as Figure 8 The door frame shown also includes a decorative cover 6, which consists of a semi-circular cover plate and a square cover plate horizontally connected to the diameter of the semi-circular cover plate. The decorative cover 6 is installed in a tensioned manner at the corner bracket mounting part 321 of the upper horizontal frame 3 and / or the lower horizontal frame 4, and at the end face of the left vertical frame 1 and / or the right vertical frame 2. Multiple positioning pins are provided on the mating surface of the decorative cover 6.

[0081] The corner bracket mounting section 321, the left vertical frame 1, and / or the right vertical frame 2 are all provided with positioning holes that mate with the decorative cover 6. The decorative cover 6 can completely cover the fastening screws of the assembled corner bracket 5, resulting in a final product appearance with no exposed screws. The upper and lower decorative covers adopt a tension-type installation method, forming a tight fit with the horizontal frame, allowing for quick installation and removal without the need for additional tools; at the same time, the tension-type structure has an adaptive adjustment function, which can automatically compensate according to the dimensional tolerance of the horizontal frame, ensuring that the decorative cover is flush with the surface of the horizontal / vertical frame after installation, avoiding appearance defects caused by installation errors.

[0082] Example 2

[0083] Reference Figure 3 , Figures 9-11 As shown, Figure 3 This utility model provides an assembly diagram of the corner bracket and the left vertical frame in a door frame. Figure 9 This is a structural schematic diagram of a central axis revolving door provided by this utility model; Figure 10This is a schematic diagram illustrating the fixing of the horizontal and vertical frame sides during the installation of a central axis revolving door provided by this utility model; Figure 11 This is a schematic diagram of the structure of a central axis revolving door after assembly, provided by this utility model.

[0084] This embodiment provides a central axis revolving door, including a door frame and a core panel 7. The door frame is the same as that obtained in Embodiment 1. In this embodiment, the core panel 7 is a glass core panel, embedded within a rectangular frame enclosed by a left vertical frame 1, an upper horizontal frame 3, a right vertical frame 2, and a lower horizontal frame 4. The central axis revolving door rotates around its longitudinal centerline. The central axis revolving door has a through hole 322 at the upper horizontal frame 3 for mounting the rotating hardware, which is commonly used in the market and will not be further described in this invention.

[0085] During the actual manufacturing and assembly, firstly, mill and drill holes on the top and bottom of the vertical frame (left vertical frame 1 / right vertical frame 2), and install and assemble the corner brackets 5. The milling on the top and bottom and the installation screws will be covered by the horizontal frame later. Mill the upper horizontal frame 3 / lower horizontal frame 4, and apply glass glue to the grooves of the four side frames before embedding the glass core board into the grooves of the side frames. Fix the horizontal and vertical frames at the top and bottom positions with screws. In this embodiment, each fixed installation point is tightened with 5 screws. Finally, attach the decorative cover 6 at the top and bottom corner bracket installation part 321 to complete the assembly of the entire central axis revolving door.

[0086] The entire central axis revolving door is mirrored in all directions, with the left and right frames having outer arcs and the upper and lower frames having inner arcs. The upper frame cavity is used to install the decorative cover 6.

[0087] Example 3

[0088] Reference Figure 12 As shown, Figure 12 This is a structural schematic diagram of an indoor partition door panel provided by this utility model, wherein Figure a shows the closed state and Figure b shows the open state.

[0089] This embodiment provides an interior partition door panel, which includes three sets of central axis revolving doors obtained in Embodiment 2. The three sets of central axis revolving doors are arranged in series when closed, and each central axis revolving door can rotate independently. When open, they are arranged side-by-side.

[0090] As can be seen from the above embodiments, the door frame, the central axis revolving door, and the interior partition door panel of the present invention achieve at least the following beneficial effects:

[0091] First, the door frame adopts curved elements, breaking through the limitations of traditional square / flat structures and optimizing the overall modern and artistic aesthetics; it is especially suitable for high-end commercial and hotel settings where decorative requirements are high; in addition, the curved frame increases the fit of the revolving door's movement trajectory during rotation.

[0092] Secondly, in the design of the horizontal and vertical frame connections, the corner brackets are precisely fitted with the pre-reserved grooves or limiting protrusions on the frame to ensure accurate alignment of the horizontal and vertical frames before screw fixing during installation, avoiding positional shifts caused by manual operation or external forces. Specifically, the connecting end of the corner bracket has a groove structure that matches the protrusions of the vertical / horizontal frame, restricting lateral or longitudinal displacement; when subsequently fixed with screws, the tightening force of the corner bracket further locks the frame position, ensuring that the entire connection structure remains stably aligned throughout the installation process.

[0093] Third, through the precise matching of the horizontal and vertical frames and the assembly corner brackets, the horizontal frame can completely cover the connecting screws of the vertical frame when it is fixed, forming the first layer of hidden structure; the top and bottom decorative covers further conceal the screws of the horizontal frame, ultimately achieving the effect of no exposed screws on the product appearance.

[0094] Fourth, the upper and lower decorative covers adopt a tension-type installation method, forming a tight fit with the horizontal frame, allowing for quick installation and removal without the need for additional tools. Simultaneously, the tension-type structure has an adaptive adjustment function, automatically compensating for the dimensional tolerances of the horizontal frame to ensure that the decorative covers are flush with the surface of the horizontal / vertical frame after installation, avoiding cosmetic defects caused by installation errors.

[0095] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A door leaf frame for a central axis revolving door, characterized in that, The door frame includes a left vertical frame, an upper horizontal frame, a right vertical frame, and a lower horizontal frame connected sequentially in a clockwise direction to form a rectangular frame. The left vertical frame is parallel to and mirror-symmetrically arranged with the right vertical frame, the upper horizontal frame is parallel to and mirror-symmetrically arranged with the lower horizontal frame, and the left vertical frame is perpendicular to the upper horizontal frame. The left vertical frame is fixedly connected to the upper horizontal frame and the lower horizontal frame respectively by assembly corner brackets, and the right vertical frame is fixedly connected to the upper horizontal frame and the lower horizontal frame respectively by assembly corner brackets. The left vertical frame is a semi-circular arc-shaped cylinder with a vertically continuous corner bracket mounting cavity, and the upper and lower ends of the left vertical frame are mirror-symmetrically arranged. The cross-sectional shape of the corner bracket mounting cavity is "π". The left vertical frame is composed of a planar sidewall perpendicular to the horizontal plane and a vertical frame sidewall connected to the planar sidewall. The vertical frame sidewall is an arc-shaped or near-arc-shaped sidewall, and the central angle of the arc of the horizontal cross-section of the vertical frame sidewall is n, where 0° < n ≤ 180°. The planar sidewall is located at the end closer to the right vertical frame, and the vertical frame sidewall is located at the end farther from the right vertical frame. One end; a vertically extending vertical door panel mounting groove is provided on the outer surface of the planar sidewall near the right vertical frame, recessed towards the sidewall of the vertical frame, wherein the cross-sectional shape of the vertical door panel mounting groove is rectangular in the vertical direction; the vertical door panel mounting groove is axially symmetrical along the vertical axis of the planar sidewall, and the upper end face of the vertical door panel mounting groove is lower than the upper end face of the left vertical frame, and the lower end face of the vertical door panel mounting groove is higher than the lower end face of the left vertical frame; at least two fastener mounting holes are provided at the upper and lower ends of the planar sidewall respectively; The upper horizontal frame is a column with a horizontally extending corner bracket mounting cavity running horizontally to the left and right. The left and right ends of the upper horizontal frame are mirror-symmetrically arranged. The vertical cross-sectional shape of the corner bracket mounting cavity is "π". The upper horizontal frame is composed of a horizontal frame sidewall and an upper horizontal frame sidewall parallel to the horizontal plane. The upper horizontal frame sidewall is a planar wall, while the horizontal frame sidewall is an arc-shaped or near-arc-shaped sidewall. The central angle of the arc of the horizontal frame sidewall's vertical cross-section is r, where 0° < r ≤ 180°. The horizontal frame sidewall is located at the end closest to the lower horizontal frame. The upper horizontal frame sidewall is located at the end away from the lower horizontal frame; the horizontal frame sidewall has a door leaf mounting groove that opens downwards, extends horizontally, and is recessed towards the upper horizontal frame sidewall, wherein, in the horizontal direction, the cross-sectional shape of the door leaf mounting groove is rectangular; the door leaf mounting groove is axially symmetrical about the central axis of the horizontal frame sidewall in the horizontal direction; in the horizontal direction, the left and right ends of the upper horizontal frame sidewall are respectively provided with corner bracket mounting parts, the upper plane of the corner bracket mounting parts being lower than the upper surface of the upper horizontal frame sidewall; a through hole is provided at the center of the upper horizontal frame sidewall; The assembled corner bracket includes a first arm and a second arm, which are connected by a first connecting part. The first arm, the second arm, and the first connecting part are all cuboid structures. The first arm has a "π" shaped cross-section in the vertical direction, and the second arm has a "π" shaped cross-section in the horizontal direction. The first arm and the second arm form an angle of 90°. The first arm is fixedly connected to the upper horizontal frame and / or the lower horizontal frame. The second arm is fixedly connected to the left vertical frame and / or the right vertical frame. The arm shapes of the first arm and the second arm are respectively adapted to the mounting cavity of the horizontal frame corner bracket and the mounting cavity of the vertical frame corner bracket.

2. The door frame of the central axis revolving door according to claim 1, characterized in that, The door frame also includes a decorative cover, which consists of a semi-circular cover plate and a square cover plate horizontally connected to the diameter of the semi-circular cover plate. The decorative cover is tensioned and installed at the corner bracket mounting part of the upper horizontal frame and / or the lower horizontal frame, and at the end face of the left vertical frame and / or the right vertical frame. The mating surface of the decorative cover is provided with a positioning pin. The corner bracket mounting part, the end face of the left vertical frame and / or the right vertical frame are all provided with positioning holes that cooperate with the decorative cover.

3. The door frame of the central axis revolving door according to claim 1, characterized in that, The vertical frame door panel mounting groove divides the planar sidewall into an axisymmetric first planar sidewall region and a second planar sidewall region along the vertical direction. In the first planar sidewall region and the second planar sidewall region respectively, the upper end face of the vertical frame door panel mounting groove is connected to the upper end face of the planar sidewall through a U-shaped groove. The lower end face of the U-shaped groove is lower than the upper end face of the vertical frame door panel mounting groove. Along the horizontal direction, the wall thickness 'a' of the U-shaped groove is less than the overall thickness 'b' of the vertical frame door panel mounting groove.

4. The door frame of the central axis revolving door according to claim 1, characterized in that, The central angle n is 180°, and the sidewall of the vertical frame is an arc-shaped sidewall; The central angle n is 0° < n < 180°. The side wall of the vertical frame is a semi-circular arc side wall, which is composed of a major arc side wall and two parallel planar side walls I and II. The planar side walls I and II are perpendicular to the horizontal plane. In the vertical direction, the two ends of the arc surface of the superior arc sidewall are connected to the two ends of the planar sidewall I and the planar sidewall II, respectively.

5. The door frame of the central axis revolving door according to claim 1, characterized in that, The left vertical frame is also provided with a cavity that runs vertically through it. The corner bracket mounting cavity of the vertical frame is located at one end near the side wall of the plane. The inner wall of the corner bracket mounting cavity of the vertical frame includes the inner wall of the first plane of the vertical frame arranged in a vertical direction. The inner wall of the first plane of the vertical frame separates the cavity from the corner bracket mounting cavity of the vertical frame. The inner wall of the vertical frame corner bracket mounting cavity also includes a second plane inner wall of the vertical frame that is parallel to the inner wall of the first plane of the vertical frame, and the first plane inner wall of the vertical frame and the second plane inner wall of the vertical frame are connected by a connecting part; The inner wall of the vertical frame corner bracket mounting cavity also includes a vertical frame third plane inner wall, which is perpendicularly connected to the vertical frame second plane inner wall. The outer wall of the vertical frame door leaf mounting groove is connected to the vertical frame third plane inner wall through the vertical frame fourth plane inner wall, thus forming the inner wall of the vertical frame corner bracket mounting cavity. The outer wall of the vertical frame door leaf mounting groove includes a first plane wall parallel to the vertical frame first plane inner wall and a second plane wall parallel to the vertical frame third plane inner wall. The second plane wall is perpendicularly connected to the vertical frame fourth plane inner wall, and the first plane wall and the vertical frame second plane inner wall are located on the same plane. The vertical inner wall of the third plane of the vertical frame is also provided with a cuboid-shaped limiting strip in the vertical direction.

6. The door frame of the central axis revolving door according to claim 1, characterized in that, The central angle r is 180°, and the sidewall of the horizontal frame is an arc-shaped sidewall; The central angle n is 0° < n < 180°. The horizontal frame sidewalls include a lower horizontal frame sidewall, a front horizontal frame sidewall, and / or a rear horizontal frame sidewall. The front and rear horizontal frame sidewalls are planar walls, while the lower horizontal frame sidewall is an arc-shaped sidewall. The lower horizontal frame sidewall is smoothly connected to the front and rear horizontal frame sidewalls. When the horizontal frame sidewalls include the front and rear horizontal frame sidewalls, the front and rear horizontal frame sidewalls are parallel and mirror images of each other. On the outer surface of the upper horizontal frame, the front and / or rear horizontal frame sidewalls are respectively perpendicular to the upper horizontal frame sidewall. The lower horizontal frame sidewall is provided with a groove for mounting the horizontal frame door leaf. The mounting cavity for the horizontal frame corner bracket has the inner wall of the upper horizontal frame sidewall as a horizontal wall, which is connected to the inner wall of the horizontal frame through a first arc-shaped connecting part. The inner wall of the horizontal frame is connected to the inner wall of the lower horizontal frame through a second arc-shaped connecting part. The inner wall of the lower horizontal frame is composed of an "I"-shaped horizontal inner wall extending into the mounting cavity of the horizontal frame corner bracket, with the upper bottom of the mounting groove of the horizontal frame door leaf as a reference, and the side wall of the mounting groove of the horizontal frame door leaf. The second arc-shaped connecting part is connected to the side wall of the mounting groove of the horizontal frame door leaf within the mounting cavity of the horizontal frame corner bracket.

7. The door frame of the central axis revolving door according to claim 6, characterized in that, The inner sidewall of the horizontal frame includes a first inner sidewall and a second inner sidewall mirrored in the vertical direction. The first inner sidewall is a cuboid protrusion between the first arc-shaped connecting part and the second arc-shaped connecting part. The end face of the cuboid protrusion near the "I"-shaped horizontal inner wall has a groove I that extends horizontally and is recessed in the direction away from the "I"-shaped horizontal inner wall. On the vertical plane in the left and right direction, the orthographic projection of the groove portion of the groove I is rectangular. The upper end face of the "I"-shaped horizontal inner wall is parallel to the inner wall of the upper horizontal frame sidewall. The upper end face of the "I"-shaped horizontal inner wall and the upper end face of the inner sidewall of the horizontal frame are located in the same plane.

8. The door frame of the central axis revolving door according to claim 1, characterized in that, The assembled corner bracket has a planar mirror symmetric structure along the vertical direction; The first support arm has a first mating groove recessed towards the inside of the assembly bracket. The first mating groove is a recess that matches a protruding portion within the mounting cavity of the upper and / or lower horizontal frame brackets. The orthographic projection of the recess in the left-right vertical plane is rectangular. The first mating groove is connected to the outer surface of the first support arm via a second connecting portion located at the end furthest from the first connecting portion. The second connecting portion includes a smoothly connected first inclined connecting portion and a first arc-shaped connecting portion, wherein the first inclined connecting portion is recessed towards the outer surface of the first support arm in the horizontal direction. The surface connection is such that the angle between the first inclined connecting part and the horizontal outer surface of the first support arm in the vertical direction is an obtuse angle, and the first arc surface connecting part is connected to the first mating groove; on the horizontal outer surface of the first support arm, there is a fastener mounting hole; on the inner surface of the horizontal surface of the first support arm, there is also a first groove that matches the protrusion in the mounting cavity of the horizontal corner bracket of the upper horizontal frame and / or the lower horizontal frame and is recessed towards the outer surface of the horizontal surface of the first support arm, and the groove of the first groove in the horizontal projection of the outer surface of the first support arm is rectangular. The second support arm has a second mating groove recessed towards the inner side of the assembled corner bracket. The second mating groove is a recess that matches the protruding portion within the mounting cavity of the left and / or right vertical frame corner brackets. The orthographic projection of the recess in the left-right vertical plane is rectangular. The second mating groove is connected to a first surface of the second support arm via a third connecting portion. The first surface is located near the side wall of the vertical frame within the mounting cavity of the corner bracket. The third connecting portion includes a smoothly connected second inclined surface connecting portion and a second arcuate surface connecting portion. The second support arm is connected to the first surface of the second support arm. The angle between the second inclined connecting part and the first surface of the second support arm in the horizontal direction is an obtuse angle. The second arc-shaped connecting part is connected to the second mating groove. On the second support arm, the first surface is provided with fastener mounting holes. On the inner surface of the second support arm opposite to the first surface, there is also a second groove that matches the protrusion in the mounting cavity of the left vertical frame and / or the right vertical frame and is recessed towards the first surface. The groove of the second groove is rectangular in the orthographic projection on the first surface. The second mating groove is perpendicularly connected to the first mating groove.

9. A central axis revolving door, characterized in that, It includes a door frame and a core board, wherein the door frame is the door frame as described in any one of claims 1-8, and the core board is embedded in a rectangular frame enclosed by the left vertical frame, the upper horizontal frame, the right vertical frame, and the lower horizontal frame; The central axis revolving door rotates around its longitudinal centerline.

10. An interior partition door panel, characterized in that, The interior partition door panel includes at least three sets of central axis revolving doors as described in claim 9, which are arranged in series. Each central axis revolving door in the interior partition door panel can rotate independently.

Images