Heavy-duty sliding and swinging door

By using a plug-in design for the guide rails and pulley blocks, along with a limit box, the problem of wear on the rollers of traditional heavy-duty swing sliding doors is solved, achieving easy maintenance and smooth operation, making it suitable for heavy-duty door applications.

CN224363827UActive Publication Date: 2026-06-16PITAVIS HOME TECH (GUANGDONG) CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PITAVIS HOME TECH (GUANGDONG) CO LTD
Filing Date
2025-05-12
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Traditional heavy-duty swing sliding doors have rollers that are directly fixed to the door frame assembly, resulting in severe wear, inconvenience in maintenance and replacement, and affecting the overall performance and service life of the door.

Method used

The design features a plug-in connection between the guide rail and the pulley block, allowing for quick disassembly and maintenance of the pulley block. Combined with symmetrically or staggeredly distributed pulley blocks and limit boxes, it ensures stable sliding of the sliding door and enhances its load-bearing capacity.

Benefits of technology

It improves maintenance efficiency, reduces the replacement time of pulley block wear, ensures smooth operation of sliding door panels during opening and closing, and extends the service life and stability of the door.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224363827U_ABST
    Figure CN224363827U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of doors and windows, more particularly, it relates to a heavy type horizontal open and pull door, and its technical scheme main points include: door frame, horizontal open door leaf, rotatablely connected in one side of door frame, first overhead line, fixedly connected in the top of horizontal open door leaf, and abut with door frame, pull door leaf, slidingly connected in one side of horizontal open door leaf, second overhead line, fixedly established in door frame, and located in one end of first overhead line, guide rail, installed in the top of pull door leaf, pulley block, inserted in one side of guide rail, wherein, pull door leaf can drive pulley block on first overhead line, second overhead line slip. The utility model adopts the plug -in type design of guide rail and pulley block, makes pulley block can dismantle and maintain fast, has reduced the replacement time of pulley block wear and tear in heavy door operation, has the advantages such as simple structure, easy to install and maintain.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of doors and windows, and more specifically, it relates to a heavy-duty swing sliding door. Background Technology

[0002] Heavy-duty swing-sliding doors are a type of door system that combines swing and sliding opening methods. They can achieve efficient opening and closing in limited spaces, while also possessing high strength, durability, and good sealing performance. They are widely used in industrial plants, warehouses, large commercial venues, and residential balconies.

[0003] However, traditional heavy-duty swing sliding doors have some design limitations. In particular, the rollers of the sliding door are directly fixed to the door frame assembly. Although this design is simple, the rollers often wear out during long-term use, making maintenance and replacement quite inconvenient and affecting the overall performance and lifespan of the door. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a heavy-duty swing sliding door with the advantages of simple structure and easy installation and maintenance.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a heavy-duty swing sliding door, comprising:

[0006] Door frame;

[0007] A hinged door leaf is rotatably connected to one side of the door frame;

[0008] The first hanging rail is fixed to the top of the swing door leaf and abuts against the door frame;

[0009] A sliding door panel is slidably connected to one side of the hinged door panel;

[0010] The second hanging rail is fixed to the door frame and located at one end of the first hanging rail;

[0011] The guide rail is installed on the top of the sliding door leaf;

[0012] A pulley block is inserted into one side of the guide rail;

[0013] The sliding door can drive the pulley assembly to slide on the first hanging rail and the second hanging rail.

[0014] In one embodiment, the side of the guide rail is provided with an embedding groove;

[0015] The pulley assembly includes a plug and a roller. The plug is inserted into the groove, and the roller is rotatably disposed on the outside of the plug.

[0016] In one embodiment, the rolling wheels are spaced in multiple intervals.

[0017] In one embodiment, the number of pulleys is two, and they are distributed symmetrically or alternately with respect to the guide rail.

[0018] In one embodiment, the outer wall of the rolling wheel is provided with a groove, and the first rail and the second rail are both provided with guide ridges along their length direction, and the groove and the guide ridge are slidably connected.

[0019] In one embodiment, a limiting box is also provided between the first hanging rail and the second hanging rail to restrict the movement of the sliding door leaf.

[0020] In one embodiment, the limiting box includes a locking member and a fixing member. The locking member is connected and fixed to the first hanging rail, and the fixing member is connected and fixed to the second hanging rail. The locking member and the fixing member are movably connected.

[0021] In one embodiment, the bottom of the hinged door leaf is provided with a first positioning wheel set, which is slidably connected to the bottom of the sliding door leaf;

[0022] The bottom of the sliding door is provided with a second positioning wheel set, which is slidably connected to the bottom of the hinged door.

[0023] In one embodiment, the bottom of the sliding door leaf is provided with a first sliding groove, the first positioning wheel group includes a first L-shaped member and a first guide wheel, the first L-shaped member is fixed to the bottom of the swing door leaf, the first guide wheel is rotatably disposed on the first L-shaped member, and the first guide wheel is slidably connected to the first sliding groove.

[0024] The bottom of the hinged door leaf is provided with a second sliding groove. The second positioning wheel group includes a second L-shaped component and a second guide wheel. The second L-shaped component is fixed to the bottom of the sliding door leaf, and the second guide wheel is rotatably disposed on the second L-shaped component. The second guide wheel is slidably connected to the second sliding groove.

[0025] In one embodiment, a lock cylinder is provided on the side of the sliding door leaf away from the hinged door leaf, and a lock body is provided on the side of the door frame close to the sliding door leaf, with the lock cylinder and the lock body being connected in cooperation.

[0026] The above-mentioned heavy-duty swing sliding door has the following beneficial effects:

[0027] Firstly, this invention adopts a plug-in design for the guide rail and pulley block, which allows for quick disassembly and maintenance of the pulley block, reducing the replacement time due to pulley block wear during heavy-duty door operation and improving maintenance efficiency. Secondly, the first and second hanging rails provide a stable sliding path for the sliding door leaf, ensuring smooth operation during opening and closing.

[0028] Secondly, the symmetrically distributed pulley system effectively disperses local stress and enhances load-bearing capacity, making it particularly suitable for heavy-duty door applications. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0030] Figure 2 This is a schematic diagram of the structure of the first hanging rail, the second hanging rail, the limiting box, the guide rail and the pulley block in this embodiment;

[0031] Figure 3 This is a schematic diagram of the limiting box in this embodiment;

[0032] Figure 4 This is a schematic diagram of the pulley block and guide rail in this embodiment;

[0033] Figure 5 This is a schematic diagram of the structure of the first positioning wheel group in this embodiment.

[0034] In the diagram: 1. Door frame; 2. Hinged door leaf; 3. First hanging rail; 4. Sliding door leaf; 5. Second hanging rail; 6. Guide rail; 61. Embedded groove; 7. Pulley block; 71. Insert block; 72. Rolling wheel; 8. Guide ridge; 9. Limiting box; 91. Locking component; 92. Fixing component; 10. First positioning wheel group; 101. First L-shaped component; 102. First guide wheel; 11. Second positioning wheel group; 12. Lock body. Detailed Implementation

[0035] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 utility model, and are not intended to 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 utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] A type of heavy-duty swing sliding door, such as Figure 1 and Figure 2 As shown, it includes: a door frame 1; a hinged door leaf 2, rotatably connected to one side of the door frame 1; a first hanging rail 3, fixed to the top of the hinged door leaf 2 and abutting against the door frame 1; a sliding door leaf 4, slidably connected to one side of the hinged door leaf 2; a second hanging rail 5, fixed to the door frame 1 and located at one end of the first hanging rail 3; a guide rail 6, installed on the top of the sliding door leaf 4; and a pulley assembly 7, inserted into one side of the guide rail 6. The sliding door leaf 4 can drive the pulley assembly 7 to slide on the first hanging rail 3 and the second hanging rail 5.

[0041] This utility model adopts a plug-in design of guide rail 6 and pulley block 7, which allows pulley block 7 to be quickly disassembled and maintained, reducing the replacement time of pulley block 7 due to wear during heavy door operation and improving maintenance efficiency. In addition, the configuration of the first hanging rail 3 and the second hanging rail 5 provides a stable sliding path for the sliding door leaf 4, ensuring the smooth operation of the sliding door leaf 4 during opening and closing.

[0042] Preferred, such as Figure 2 and Figure 4 As shown, the guide rail 6 has an embedded groove 61 on its side; the pulley group 7 includes a plug 71 and a roller 72. The plug 71 is inserted into the embedded groove 61, and the roller 72 is rotatably disposed on the outside of the plug 71.

[0043] Specifically, the size and shape of the recess 61 match the insert 71, ensuring that the insert 71 can be firmly inserted and fixed to the side of the guide rail 6, thereby allowing the roller 72 to slide smoothly on the guide rail 6, enhancing the stability and durability of the entire door system.

[0044] Preferably, multiple rollers 72 are spaced apart, which can effectively distribute the weight of the sliding door leaf 4, reduce the load on a single roller 72, and thus improve the stability and durability of the entire door system.

[0045] Preferably, there are two pulley blocks 7, which are symmetrically or staggeredly distributed about the guide rail 6. The symmetrical or staggered distribution of the pulley blocks 7 effectively disperses local stress and enhances the load-bearing capacity, making it especially suitable for heavy-duty door applications.

[0046] Preferred, such as Figure 4 As shown, the outer wall of the rolling wheel 72 is provided with a groove, and the first hanging rail 3 and the second hanging rail 5 are both provided with guide ribs 8 along their length direction. The groove and the guide ribs 8 are slidably connected.

[0047] Specifically, such as Figure 2 As shown, two guide ribs 8 are symmetrically arranged, with the width of the guide rib slightly larger than the width of the groove, to ensure that the rolling wheel 72 can slide smoothly on the first hanging rail 3 and the second hanging rail 5. Simultaneously, the groove design allows the rolling wheel 72 to make closer contact with the first hanging rail 3 and the second hanging rail 5, reducing swaying and noise during operation and improving the smoothness of the door's operation. Furthermore, the guide ribs 8 prevent the rolling wheel 72 from shifting, thereby improving the reliability and safety of the entire heavy-duty swing sliding door system.

[0048] Preferred, such as Figure 1 and Figure 2 As shown, a limit box 9 is also provided between the first hanging rail 3 and the second hanging rail 5 to limit the movement of the sliding door leaf 4, improve the smoothness of the door leaf operation, and thus extend the service life of the door leaf and the hanging rail.

[0049] Preferred, such as Figure 3 As shown, the limiting box 9 includes a locking member 91 and a fixing member 92. The locking member 91 is connected and fixed to the first hanging rail 3, and the fixing member 92 is connected and fixed to the second hanging rail 5. The locking member 91 and the fixing member 92 are movably connected.

[0050] Specifically, the locking element 91 is used to limit the displacement of the pulley block 7, ensuring the accurate positioning and safety of the sliding door leaf 4 during the sliding process, and preventing the sliding door leaf 4 from accidentally moving or derailing due to external forces. The fixing element 92 is used to movably connect with the locking element 91, so that the sliding door leaf 4 and the swing door leaf 2 can be precisely aligned, and the tracks of the first hanging rail 3 and the second hanging rail 5 are stably aligned.

[0051] Preferably, the bottom of the hinged door leaf 2 is provided with a first positioning wheel set 10, which is slidably connected to the bottom of the sliding door leaf 4; the bottom of the sliding door leaf 4 is provided with a second positioning wheel set 11, which is slidably connected to the bottom of the hinged door leaf 2. Specifically, the first positioning wheel set and the second positioning wheel set have the same shape.

[0052] Specifically, such as Figure 5 As shown, the bottom of the sliding door leaf 4 is provided with a first sliding groove, and the first positioning wheel group 10 includes a first L-shaped part 101 and a first guide wheel 102. The first L-shaped part 101 is fixed to the bottom of the swing door leaf 2, and the first guide wheel 102 is rotatably disposed on the first L-shaped part 101. The first guide wheel 102 is slidably connected to the first sliding groove.

[0053] Specifically, the bottom of the hinged door leaf 2 is provided with a second sliding groove, and the second positioning wheel assembly 11 includes a second L-shaped component and a second guide wheel. The second L-shaped component is fixed to the bottom of the sliding door leaf 4, and the second guide wheel is rotatably mounted on the second L-shaped component. The second guide wheel is slidably connected to the second sliding groove. The combined design of the first positioning wheel assembly 10 and the second positioning wheel assembly 11 enables the sliding door leaf 4 to maintain stable operation in the pushing and pulling state.

[0054] Preferably, the sliding door leaf 4 is provided with a lock cylinder on the side away from the swing door leaf 2, and the door frame 1 is provided with a lock body 12 on the side close to the sliding door leaf 4. The lock cylinder and the lock body 12 are connected to prevent the sliding door leaf 4 from being opened accidentally, thus ensuring the safety and stability of the door.

[0055] Based on the above solutions, this utility model has three usage states: fully closed, half closed, and fully open, to adapt to different usage needs and scenarios.

[0056] In the fully closed state, the sliding door 4 and the hinged door 2 are separated, and the upper surface of the locking element 91 is pressed by the door frame 1, causing it to lose its control over the displacement of the pulley block 7. At this time, the sliding door 4 can slide freely between the first hanging rail 3 and the second hanging rail 5 under the drive of the pulley block 7, realizing the opening and closing action of the door;

[0057] When the sliding door leaf 4 slides to fully overlap with the swing door leaf 2, it enters a semi-closed state. At this time, the locking element 91 moves away from the door frame 1, and its upper surface is no longer compressed, thereby restoring the ability to control the displacement of the pulley block 7, preventing the sliding door leaf 4 from sliding out of the first hanging rail 3, and ensuring the stability and safety of the door;

[0058] Furthermore, when it is necessary to fully open the door, the sliding door leaf 4 and the hinged door leaf 2 rotate together around one side of the door frame 1 to enter the fully open state.

[0059] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A heavy-duty swing-sliding door, characterized in that, include: Door frame; A hinged door leaf is rotatably connected to one side of the door frame; The first hanging rail is fixed to the top of the swing door leaf and abuts against the door frame; A sliding door panel is slidably connected to one side of the hinged door panel; The second hanging rail is fixed to the door frame and located at one end of the first hanging rail; The guide rail is installed on the top of the sliding door leaf; A pulley block is inserted into one side of the guide rail; The sliding door can drive the pulley assembly to slide on the first hanging rail and the second hanging rail.

2. A heavy-duty swing sliding door according to claim 1, characterized in that: The side of the guide rail is provided with an embedding groove; The pulley assembly includes a plug and a roller. The plug is inserted into the groove, and the roller is rotatably disposed on the outside of the plug.

3. A heavy-duty swing sliding door according to claim 2, characterized in that: The rolling wheels are spaced at multiple intervals.

4. A heavy-duty swing sliding door according to claim 1, characterized in that: The pulley system consists of two pulleys, which are symmetrically or staggered about the guide rail.

5. A heavy-duty swing sliding door according to claim 2, characterized in that: The outer wall of the rolling wheel is provided with a groove, and the first rail and the second rail are both provided with guide ridges along their length direction. The groove and the guide ridge are slidably connected.

6. A heavy-duty swing sliding door according to claim 1, characterized in that: A limiting box is also provided between the first hanging rail and the second hanging rail to restrict the movement of the sliding door leaf.

7. A heavy-duty swing sliding door according to claim 6, characterized in that: The limiting box includes a locking component and a fixing component. The locking component is connected and fixed to the first hanging rail, and the fixing component is connected and fixed to the second hanging rail. The locking component and the fixing component are movably connected.

8. A heavy-duty swing sliding door according to claim 1, characterized in that: The bottom of the hinged door leaf is provided with a first positioning wheel set, which is slidably connected to the bottom of the sliding door leaf; The bottom of the sliding door is provided with a second positioning wheel set, which is slidably connected to the bottom of the hinged door.

9. A heavy-duty swing sliding door according to claim 8, characterized in that: The bottom of the sliding door leaf is provided with a first sliding groove. The first positioning wheel group includes a first L-shaped part and a first guide wheel. The first L-shaped part is fixed to the bottom of the swing door leaf. The first guide wheel is rotatably disposed on the first L-shaped part. The first guide wheel is slidably connected to the first sliding groove. The bottom of the hinged door leaf is provided with a second sliding groove. The second positioning wheel group includes a second L-shaped component and a second guide wheel. The second L-shaped component is fixed to the bottom of the sliding door leaf, and the second guide wheel is rotatably disposed on the second L-shaped component. The second guide wheel is slidably connected to the second sliding groove.

10. A heavy-duty swing sliding door according to claim 1, characterized in that: The sliding door leaf is provided with a lock cylinder on the side away from the hinged door leaf, and the door frame is provided with a lock body on the side closer to the sliding door leaf. The lock cylinder and the lock body are connected in cooperation.