Movable door frame
By using an L-shaped base plate and guide rail structure, combined with limiting and buffer components, the stability problem of the sliding connection of the sliding door is solved, enabling stable sliding of the door under gravity and convenient replacement of easily damaged parts, thus extending its service life.
Patent Information
- Application Number
- CN202423307683.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-30
AI Technical Summary
The existing sliding connection method of sliding doors is prone to door detachment, wear or breakage under the action of gravity, and the unstable friction of the limiting structure affects the service life.
The L-shaped base plate and movable block structure, combined with the first and second guide rails and limiting components, ensure that the door slides stably along the frame, and the buffer and limiting components balance the force to prevent wear and deformation.
It achieves stable sliding of the sliding door, avoids damage to the moving mechanism under the action of gravity, facilitates the disassembly and replacement of parts, and extends the service life.
Smart Images
Figure CN223767370U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sliding door installation structures, specifically to a sliding door frame. Background Technology
[0002] Most existing doors, for ease of use and to adapt to special applications, are no longer simply designed with a single side-to-side rotating connection to the door frame. To reduce space occupation, especially for specialized industrial doors, a sliding connection along the door frame is sometimes required. However, to incorporate necessary functions such as fire resistance and waterproofing, these doors are made quite heavy. Existing sliding connection methods often lack guiding and limiting structures, making the door prone to detachment. Furthermore, due to its weight, a shift in the center of gravity during movement can easily damage the connection between the door and the frame. Adding or combining multiple limiting methods, along with lubricants, can create uneven friction between the limits, causing obstacles. Sudden changes in force during door movement can also alter the stress on the frame, leading to wear and even breakage, thus affecting the door's lifespan. Utility Model Content
[0003] To address the problems existing in the prior art, the present invention aims to provide a movable door frame. This invention enables the movable door to slide back and forth along the frame more stably, and avoids damage to the moving mechanisms within the frame, especially when the door is under heavy load. It also facilitates the disassembly and replacement of easily damaged parts.
[0004] The present invention discloses a movable door frame comprising an L-shaped base plate and a movable block. A first guide rail is provided on the inner side of the vertical surface of the base plate, and the first guide rail cooperates with the upper edge of the vertical surface of the base plate to form a step. The movable block is adapted to the step. The movable block includes a connecting plate and baffles provided on both sides of the connecting plate. The upper part of the connecting plate is arranged parallel to the inner side of the vertical surface of the base plate and extends upward to connect to a mounting seat for installing a door. Limiting components are also provided at both ends of the first guide rail. The limiting components are adapted to the baffles and are used to limit the sliding of the movable block.
[0005] In one embodiment, a second guide rail parallel to the first guide rail is provided on the horizontal surface of the base plate, and a first slider is provided on the second guide rail. The first slider is connected to the movable block through a connector.
[0006] In one embodiment, the second guide rail is cylindrical and fixed to the base plate by fixing seats at both ends. The first slider is slidably sleeved on the second guide rail, and one side of the connector is fixedly connected to the upper part of the connecting plate. The other side of the connector has an opening that is adapted to the first slider.
[0007] In one embodiment, the limiting component includes a limiting member and a buffer member, the limiting member being fixed to the upper edge of the vertical surface of the base plate, and the buffer member being fixed to the horizontal surface of the base plate.
[0008] In one embodiment, the buffer is a buffer cylinder, an elastic pad, or a combination of both.
[0009] In one embodiment, the limiting member has a protrusion that is located on the same plane as the buffer member and parallel to the outer side of the baffle when the buffer member is fully compressed.
[0010] In one embodiment, the lower part of the connecting plate is fixedly provided with two second sliders, which are located at the two edges of the connecting plate and are slidably connected to the first guide rail.
[0011] Compared with the prior art, the beneficial effects of this utility model's technical solution are:
[0012] This invention enables the sliding door to slide back and forth along the frame more stably, and can prevent damage to the moving mechanism inside the frame when the door is under heavy load. It also facilitates the disassembly and replacement of easily damaged parts. In particular, the I-shaped shape of the moving block itself and the stepped shape formed in conjunction with the first guide rail and the base plate can minimize the stress deformation caused by the door and the mounting base. The shape of the base plate separates the limiting components and movable parts from the mounting base on both sides of its vertical surface to balance the force. Attached Figure Description
[0013] Figure 1 This is a structural schematic diagram of a movable door frame according to the present invention;
[0014] Figure 2 This is a schematic diagram of the structure of a movable door frame after the second guide rail has been removed.
[0015] Explanation of reference numerals in the attached drawings: 1-base plate, 2-moving block, 21-connecting plate, 22-baffle, 23-mounting seat, 24-second slider, 3-first guide rail, 4-limiting component, 41-limiting piece, 42-buffer cylinder, 43-elastic pad, 5-second guide rail, 6-first slider, 7-connecting piece. Detailed Implementation
[0016] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" 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 be described as the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0018] like Figure 1 and Figure 2 As shown, a movable door frame of this utility model includes a base plate 1 with an L-shaped cross-section and a movable block 2. A first guide rail 3 is provided on the inner side of the vertical surface of the base plate 1, and the first guide rail 3 cooperates with the upper edge of the vertical surface of the base plate 1 to form a step shape. The movable block 2 is adapted to the step shape. The movable block 2 includes a connecting plate 21 and baffles 22 provided on both sides of the connecting plate 21. The upper part of the connecting plate 21 is arranged parallel to the inner side of the vertical surface of the base plate 1 and extends upward to connect to the mounting seat 23 for installing the door body. Limiting components 4 are also provided at both ends of the first guide rail 3. The limiting components 4 are adapted to the baffles 22 and are used to limit the sliding of the movable block 2. This invention enables a more stable sliding door to reciprocate along the frame, and avoids damage to the moving mechanisms within the frame, especially for heavy doors subjected to stress. It also facilitates the disassembly and replacement of easily damaged parts. In particular, the I-shaped design of the movable block 2, combined with the stepped shape formed by the first guide rail 3 and the base plate 1, not only ensures stable movement in conjunction with the I-shaped design of the first guide rail 3, but also limits the connection plate 21 from one side of its vertical surface, minimizing deformation caused by stress on the door and mounting base 23. The shape of the base plate 1 also allows the limiting component 4 and movable parts to be positioned on opposite sides of its vertical surface, balancing the force. Furthermore, two second sliders 24 are fixed to the lower part of the connecting plate 21, located at its two edges and slidably connected to the first guide rail 3. These two second sliders 24 help maintain the planar shape of the connecting plate 21 and allow it to move linearly along that plane. When encountering external resistance, they are less likely to break the connecting plate 21, thus protecting the entire structure from wear and deformation.
[0019] Furthermore, a second guide rail 5 parallel to the first guide rail 3 is provided on the horizontal surface of the base plate 1. A first slider 6 is provided on the second guide rail 5, and the first slider 6 is connected to the movable block 2 through a connecting piece 7. In addition to the guidance and limiting provided by the base plate 1 and the first guide rail 3, the movement of the movable block 2 is also aided by the second guide rail 5, which is spaced apart from the first guide rail 3, to ensure the parallel movement of the movable block 2, thereby allowing the door to be subjected to force along a straight line. Furthermore, the second guide rail 5 is cylindrical and fixed to the base plate 1 by fixing seats at both ends, for example, by screws. The first slider 6, with a cuboid shape, is slidably fitted onto the second guide rail 5. One side of the connecting piece 7 is fixedly connected to the upper part of the connecting plate 21, and the other side of the connecting piece 7 has an opening adapted to the first slider 6, i.e., as shown in the image. Figure 1 As shown, the connector 7 is a right-angled angle steel. The hole on the connector 7 fits onto the protrusion on the upper end face of the first slider 6. When the movable block 2 moves, it drives the connector 7 to move the first slider 6 to slide on the second guide rail 5. Under a certain limiting effect, it also has a clearance fit so that the friction of the first slider 6 on the second guide rail 5 will not hinder the force on the movable block 2, thereby avoiding the force deviation of the movable block 2 when it slides on the first guide rail 3.
[0020] In one embodiment, the limiting component 4 includes a limiting member 41 and a buffer member. The limiting member 41 is fixed to the upper edge of the vertical surface of the base plate 1, and the buffer member is fixed to the horizontal surface of the base plate 1. When the movable block 2 moves to both ends of the first guide rail 3, it is mainly stopped by the buffer member, while the limiting member 41 serves as a final limiting means to prevent it from disengaging from the guide and limiting structures. The buffer member is a buffer cylinder 42, an elastic pad 43, or a combination of both. The buffer cylinder 42 is first contacted by the impact pin with the baffle 22. As compression continues, the moving speed of the movable block 2 is gradually reduced. The same applies to the elastic pad 43. Finally, the limiting member 41 has a protrusion. When the buffer member is fully compressed, it is located on the same plane as the protrusion and parallel to the outer surface of the baffle 22. Even if the movable block 2 is pushed to one side by a large force, the final impact on the limiting member 41 is less, and the protrusion on it can also reduce the wear of the body.
[0021] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this application.
[0022] The positional relationships described in the figures are for illustrative purposes only and should not be construed as limiting this patent. Clearly, the above embodiments of this utility model are merely examples to clearly illustrate the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.
Claims
1. A mobile door jamb, characterized in that, The utility model relates to a door body installation device, including the cross section L type bottom plate (1) and movable block (2), the first guide rail (3) is equipped on the inside of the vertical surface of bottom plate (1) and is formed with the step with the upper edge of the vertical surface of bottom plate (1), the movable block (2) is adapted to the step, the movable block (2) includes the connecting plate (21) and the baffle (22) of being equipped with the both sides of connecting plate (21), and the upper part of connecting plate (21) is arranged in parallel with the inside of the vertical surface of bottom plate (1) and extends upwardly and is connected with the mounting seat (23) for installing door body, and the both ends of first guide rail (3) are equipped with limiting assembly (4) respectively, limiting assembly (4) is adapted with baffle (22) and is used for limiting the sliding of movable block (2).
2. The mobile door border of claim 1, wherein, The horizontal plane of the bottom plate (1) is provided with a second guide rail (5) parallel to the first guide rail (3), and the second guide rail (5) is provided with a first sliding block (6), and the first sliding block (6) is connected with the movable block (2) through a connecting piece (7).
3. A mobile door border according to claim 2, characterized in that The second guide rail (5) is cylindrical and is fixed on the bottom plate (1) through the fixing seat at both ends, the first sliding block (6) is slidably arranged on the second guide rail (5), and one side of the connecting piece (7) is fixedly connected with the upper part of the connecting plate (21), and the other side of the connecting piece (7) is provided with a hole and is adapted with the first sliding block (6).
4. The mobile door border of claim 1, wherein, The limiting assembly (4) includes a limiting piece (41) and a buffer, the limiting piece (41) is fixedly arranged on the upper edge of the vertical surface of the bottom plate (1), and the buffer is fixedly arranged on the horizontal plane of the bottom plate (1).
5. A mobile door border according to claim 4, characterized in that The buffer is a buffer cylinder (42), an elastic cushion (43), or a combination of the two.
6. A mobile door border according to claim 5, characterized in that The limiting piece (41) is provided with a protrusion, which is located in the same plane as the protrusion when the buffer is fully compressed and is parallel to the outer side of the baffle (22).
7. The mobile door border according to any one of claims 1-6, characterized in that, The lower part of the connecting plate (21) is fixedly provided with two second sliding blocks (24), and the two second sliding blocks (24) are respectively located at the two edges of the connecting plate (21) and are slidably connected with the first guide rail (3).