Hidden impact-resistant paint-free door

Abstract

The utility model relates to the technical field of paint-free doors, and particularly discloses a hidden impact-resistant paint-free door which comprises a door frame and a door plate, the top and the bottom of the door plate are rotatably arranged on the inner side of the door frame through cylindrical pins, a rotating shaft penetrates through the center of the door plate, and a first handle and a second handle are arranged at the front end and the rear end of the rotating shaft respectively. The left side and the right side of the door frame are each provided with a limiting plate, and the limiting plates are clamped with the door frame and slidably connected with the door plate. Two positioning plates are arranged on the back face of the limiting plate and fixedly connected with the limiting plate, and a transmission device used for driving the two positioning plates to move oppositely is arranged on the rotating shaft. The two positioning plates are driven by the rotating device to move oppositely, the two limiting plates are close to the door plate, and the clamping state between the limiting plates and the door frame is relieved. The turnover hidden design can be better fused with the surrounding environment, and a good privacy protection function is provided. And the clamping and sealing mode ensures that the door plate cannot be accidentally opened when being collided, and the safety is good.

Description

Technical Field

[0001] This utility model relates to the field of paint-free door technology, and in particular to a concealed impact-resistant paint-free door. Background Technology

[0002] Paint-free doors are wooden doors that do not require further painting. Paint-free doors on the market generally refer to PVC-veneered doors, which are made using a PVC veneer vacuum forming process (typically used on the outer layer of solid wood composite doors or molded doors). The door frame is treated similarly, with a PVC veneer on the outer layer. Additionally, there are also finished wooden doors with melamine board veneers that are also called paint-free doors. Impact-resistant and sound-insulating paint-free doors differ from metal doors; they are made of wood, making installation convenient as they can be cut and sawed. They not only come in double-leaf versions but also concealed versions, enriching the variety of paint-free doors.

[0003] For example, Chinese patent application number CN202221292452.8 discloses a paint-free wooden door. The key technical points of its solution include: a door frame; a door body adapted to the door frame, the door body comprising a skeleton, a sound insulation layer, a flame-retardant layer, and a door panel. The sound insulation layer is placed between the two sides of the skeleton, forming a filling cavity between the sound insulation layer and the door panel, and the flame-retardant layer is placed in the filling cavity. One side of the door body is connected to the door frame via a hinge, and the other side of the door body is equipped with a door lock. The door body is covered with a decorative wooden board, and the door panel has an installation groove adapted to the decorative wooden board. The surface of the door panel is covered with a paint-free wood grain panel, and the perimeter of the door body is decorated with paint-free moldings. Because the door panel is fixed on only one side, when the door body is impacted, the impact force will cause the connecting parts between the door panel and the fixed side to bear significant stress. If the connecting parts (such as hinges, screws, etc.) are not strong enough or are not securely installed, the connection may loosen, and the door panel may completely detach from the fixed side, posing a safety hazard. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a concealed, impact-resistant, paint-free door to solve the shortcomings of existing paint-free doors. When impacted, the impact force causes the connecting parts between the door panel and the fixed edge to bear large stress, which can lead to loosening of the connection and the door panel potentially falling completely off the fixed edge, posing a safety hazard.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a concealed impact-resistant paint-free door, including a door frame and a door panel, the top and bottom of the door panel are rotatably set inside the door frame by a cylindrical pin, a rotating shaft is provided through the center of the door panel, and a first handle and a second handle are respectively provided at the front and rear ends of the rotating shaft, and the rotating shaft is rotatably connected to the door panel;

[0006] A limiting plate is provided on each of the left and right sides of the door frame. The limiting plate engages with the door frame and slides with the door panel.

[0007] The back of the limiting plate is provided with two positioning plates, which are fixedly connected to the limiting plate. The rotating shaft is provided with a transmission device for driving the two positioning plates to move in opposite directions.

[0008] A further improvement is that the limiting plate has a snap-fit ​​groove on the side away from the door panel, which engages with a snap-fit ​​protrusion on the inside of the door frame, and the snap-fit ​​protrusion is fixedly connected to the door frame.

[0009] A further improvement is that a limiting groove is provided on the side of the limiting plate near the door panel, and the end of the door panel near the limiting plate is inserted into the limiting groove, with the door panel and the limiting groove being slidably connected.

[0010] A further improvement is that a limiting rod is provided in the limiting groove, one end of the limiting rod is fixedly connected to the limiting plate, and the other end of the limiting rod is inserted into the limiting hole opened at the end of the door panel, with the limiting rod and the limiting hole being slidably connected.

[0011] A further improvement is that the transmission device includes a gear, which is sleeved on the outside of the rotating shaft and is fixedly connected to the rotating shaft. Two positioning plates are horizontal and staggered, with the gear placed between the two positioning plates. The positioning plates mesh with the teeth located on the outside of the positioning plates.

[0012] A further improvement is that: a bolt plate is provided at the end of the positioning plate away from the gear, the bolt plate is fixedly connected to the positioning plate, a fixing bolt is mounted on the bolt plate, and the fixing bolt is threadedly connected to the bolt hole opened on the outside of the limiting plate.

[0013] A further improvement is that a cover plate is provided on the back of the door panel, which covers the outside of the positioning plate and the gear. The cover plate is fixedly connected to the door panel, and the second handle is rotatably connected to the outside of the cover plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] A rotating mechanism moves two positioning plates towards each other, causing two limiting plates to move closer to the door panel, thus releasing the locking mechanism between the limiting plates and the door frame. The flip-up concealed design blends seamlessly with the surrounding environment and provides excellent privacy. The locking mechanism ensures the door panel will not open accidentally upon impact, offering superior safety. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural diagram of the door frame in this utility model.

[0018] Figure 2 This is a structural diagram of the door panel in this utility model.

[0019] Figure 3 This is a cross-sectional view of the limiting plate in this utility model.

[0020] Figure 4 This is a structural diagram of the positioning plate in this utility model.

[0021] Figure 5 This is a structural diagram of the door panel when it is opened in this utility model.

[0022] The components are: 1. door frame; 2. door panel; 3. limiting plate; 4. cylindrical pin; 5. first handle; 6. cover plate; 7. second handle; 8. positioning plate; 9. gear; 10. limiting groove; 11. snap-fit ​​groove; 12. limiting rod; 13. teeth; 14. bolt plate; 15. fixing bolt; 16. snap protrusion. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] according to Figure 1 , 2 As shown in Figures 3, 4, and 5, this embodiment proposes a concealed impact-resistant paint-free door, including a door frame 1 and a door panel 2. The top and bottom of the door panel 2 are rotatably mounted inside the door frame 1 via cylindrical pins 4. A pivot is provided through the center of the door panel 2, and a first handle 5 and a second handle 7 are provided at the front and rear ends of the pivot, respectively. The pivot is rotatably connected to the door panel 2.

[0025] A limiting plate 3 is provided on each of the left and right sides of the door frame 1. The limiting plate 3 is engaged with the door frame 1 and slidably connected to the door panel 2.

[0026] When the door panel 2 is closed, the limiting plates 3 on the left and right sides of the door panel 2 will engage with the inner wall of the door frame 1, restricting the rotation of the limiting plates 3 from both sides of the door panel 2.

[0027] The back of the limiting plate 3 is provided with two positioning plates 8, which are fixedly connected to the limiting plate 3. The rotating shaft is provided with a transmission device for driving the two positioning plates 8 to move in opposite directions.

[0028] The rotating device drives the two positioning plates 8 to move towards each other, and the two limiting plates 3 move closer to the door panel 2. The locking state between the limiting plates 3 and the door frame 1 is released. At this time, the door panel 2 can be rotated to allow passage. The flip-type hidden design can better blend into the surrounding environment and provides good privacy protection. The locking and closing method ensures that the door panel 2 will not be accidentally opened when impacted, providing good safety.

[0029] Specifically, the limiting plate 3 has a locking groove 11 on the side away from the door panel 2. The locking groove 11 engages with a locking protrusion 16 located on the inner side of the door frame 1, and the locking protrusion 16 is fixedly connected to the door frame 1. When the door panel 2 is closed, the locking protrusion 16 fixed on the inner side of the door frame 1 will engage with the locking groove 11 at the end of the limiting plate 3. The locking protrusion 16, by cooperating with the locking groove 11, limits the door panel 2.

[0030] Specifically, a limiting groove 10 is provided on the side of the limiting plate 3 near the door panel 2, and the end of the door panel 2 near the limiting plate 3 is inserted into the limiting groove 10, with the door panel 2 and the limiting groove 10 slidably connected. When the limiting plate 3 is retracted in the direction driven by the positioning plate 8, the door panel 2 will slide along the limiting groove 10, and the limiting groove 10 will pass through.

[0031] To prevent the limiting plate 3 from moving up and down, in a preferred embodiment, a limiting rod 12 is provided in the limiting groove 10. One end of the limiting rod 12 is fixedly connected to the limiting plate 3, and the other end of the limiting rod 12 is inserted into a limiting hole at the end of the door panel 2, with the limiting rod 12 slidably connected to the limiting hole. When the door panel 2 slides along the limiting groove 10, the limiting rod 12 also slides along the limiting hole. By cooperating with the limiting hole, the limiting rod 12 limits the limiting plate 3, preventing the door panel 2 from falling off from both sides when rotating. An anti-detachment baffle is fixed to the end of the limiting rod 12 that extends into the limiting hole; this will not be described in detail here.

[0032] Regarding the transmission device:

[0033] The transmission device includes a gear 9, which is sleeved on the outside of the rotating shaft and fixedly connected to it. Two positioning plates 8 are horizontal and staggered, with the gear 9 positioned between them. The positioning plates 8 mesh with teeth 13 located on their outer sides. A first handle 5 and a second handle 7 are fixed to the rotating shaft. The first handle 5 and the second handle 7 drive the gear 9 to rotate, causing it to mesh with the teeth 13 on the positioning plates 8, thus moving the two positioning plates 8 towards each other along the tangent of the gear 9. The positioning plates 8 are fixed to the limiting plates 3, and the distance between the two limiting plates 3 also decreases.

[0034] To facilitate the replacement of the positioning plate 8, in a preferred embodiment, a bolt plate 14 is provided at the end of the positioning plate 8 away from the gear 9. The bolt plate 14 is fixedly connected to the positioning plate 8, and a fixing bolt 15 is fitted on the bolt plate 14. The fixing bolt 15 is threadedly connected to a bolt hole on the outside of the limiting plate 3. When the positioning plate 8 is removed for replacement, the fixing bolt 15 is simply unscrewed from the bolt hole on the outside of the limiting plate 3.

[0035] To protect the transmission device and positioning plate 8, a cover plate 6 is provided on the back of the door panel 2. The cover plate 6 covers the outside of the positioning plate 8 and gear 9, and is fixedly connected to the door panel 2. The second handle 7 is rotatably connected to the outside of the cover plate 6. In addition to preventing dust from entering and foreign objects from hitting the transmission device, the cover plate 6 also supports the second handle 7.

[0036] How this application works:

[0037] When door panel 2 is closed, the limiting plates 3 on both sides of door panel 2 will engage with the inner wall of door frame 1, restricting the rotation of the limiting plates 3 from both sides of door panel 2. A rotating device drives two positioning plates 8 to move towards each other, causing the two limiting plates 3 to move closer to door panel 2. The engagement between the limiting plates 3 and door frame 1 is released, at which point door panel 2 can be rotated for passage. The flip-up concealed design blends better with the surrounding environment and provides excellent privacy. The locking mechanism ensures that door panel 2 will not open accidentally when impacted, providing good safety.

[0038] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0039] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A concealed, impact-resistant, paint-free door, comprising a door frame (1) and a door panel (2), wherein the top and bottom of the door panel (2) are rotatably disposed inside the door frame (1) via cylindrical pins (4), characterized in that: A pivot is provided through the center of the door panel (2), and a first handle (5) and a second handle (7) are provided at the front and rear ends of the pivot, respectively. The pivot is rotatably connected to the door panel (2). Each of the left and right sides of the door frame (1) is provided with a limiting plate (3), the limiting plate (3) is engaged with the door frame (1), and the limiting plate (3) is slidably connected to the door panel (2); The back of the limiting plate (3) is provided with two positioning plates (8), the positioning plates (8) are fixedly connected to the limiting plate (3), and the rotating shaft is provided with a transmission device for driving the two positioning plates (8) to move towards each other.

2. The concealed impact-resistant paint-free door according to claim 1, characterized in that: The limiting plate (3) has a snap-fit ​​groove (11) on the side away from the door panel (2). The snap-fit ​​groove (11) engages with the snap-fit ​​protrusion (16) located inside the door frame (1). The snap-fit ​​protrusion (16) is fixedly connected to the door frame (1).

3. The concealed impact-resistant paint-free door according to claim 1, characterized in that: The limiting plate (3) has a limiting groove (10) on the side near the door panel (2), and the end of the door panel (2) near the limiting plate (3) is inserted into the limiting groove (10). The door panel (2) is slidably connected to the limiting groove (10).

4. A concealed, impact-resistant, paint-free door according to claim 3, characterized in that: The limiting groove (10) is provided with a limiting rod (12). One end of the limiting rod (12) is fixedly connected to the limiting plate (3), and the other end of the limiting rod (12) is inserted into the limiting hole opened at the end of the door panel (2). The limiting rod (12) is slidably connected to the limiting hole.

5. A concealed, impact-resistant, paint-free door according to claim 1, characterized in that: The transmission device includes a gear (9), which is sleeved on the outside of the rotating shaft. The gear (9) is fixedly connected to the rotating shaft. The two positioning plates (8) are horizontal and staggered. The gear (9) is placed between the two positioning plates (8). The positioning plates (8) mesh with the teeth (13) provided on the outside of the positioning plates (8).

6. A concealed, impact-resistant, paint-free door according to claim 5, characterized in that: The positioning plate (8) has a bolt plate (14) at one end away from the gear (9). The bolt plate (14) is fixedly connected to the positioning plate (8). A fixing bolt (15) is mounted on the bolt plate (14). The fixing bolt (15) is threadedly connected to the bolt hole opened on the outside of the limiting plate (3).

7. A concealed, impact-resistant, paint-free door according to claim 5, characterized in that: The back of the door panel (2) is provided with a cover plate (6), which covers the outside of the positioning plate (8) and the gear (9). The cover plate (6) is fixedly connected to the door panel (2), and the second handle (7) is rotatably connected to the outside of the cover plate (6).

Images