Stainless steel primary-secondary building door
The design of sliding columns and sliding frames enables flexible opening of the main door and the child door, solving the problem of insufficient passage space when moving large items in existing building doors, improving the convenience and stability of stainless steel building doors, and reducing maintenance costs.
Patent Information
- Application Number
- CN202520435700.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-13
AI Technical Summary
When moving large furniture or equipment, existing stainless steel building doors cannot open the main door and the auxiliary door at the same time, resulting in insufficient passage space, increased moving costs and time, and may even prevent items from passing through.
A stainless steel double-door building door was designed. The double door can be folded and slid through the connection of sliding posts and sliding frames. Combined with the rotation of hinges, the double door and the child door can be opened separately or simultaneously, providing flexible passage space.
It improves the ease of use and stability of building doors, meets the passage needs in different scenarios, reduces the frequency of maintenance and replacement, and lowers the cost of use.
Smart Images

Figure CN223854109U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building door technical field, concretely is a stainless steel primary and secondary building door. BACKGROUND
[0002] The building door is the door made of stainless steel plate, and is generally used for the entrance of the community, and the door leaf is generally provided with a building intercom.
[0003] Modern city population is dense, and residence safety is very important. The stainless steel primary and secondary building door needs to have good anti-theft performance as the first line of defense of the building. The advanced lock technology is combined with the stainless steel solid structure, such as being provided with a multi-lock point anti-theft lock and a reinforced door frame and door leaf connecting structure, so that the door pick and kick resistance is greatly improved, and a safe living environment is provided for the residents.
[0004] When large furniture, equipment and other articles need to be transported, if the primary door and the secondary door cannot be opened at the same time to provide a larger passing space, the articles may not be able to pass through the building door smoothly, which may need to be disassembled, increase the transportation cost and time, and even may not be transported into due to disassembly, affect the normal life, office or business activities.
[0005] In view of the above problems, a stainless steel primary and secondary building door is provided. UTILITY MODEL CONTENTS
[0006] The utility model discloses a stainless steel primary and secondary building door, solve the problem that when large furniture, equipment and other articles need to be transported, if the primary door and the secondary door cannot be opened at the same time to provide a larger passing space, the articles may not be able to pass through the building door smoothly, which may need to be disassembled, increase the transportation cost and time, and even may not be transported into due to disassembly, affect the normal life, office or business activities.
[0007] In order to achieve the above object, the utility model provides the following technical scheme: a stainless steel primary and secondary building door, including the door frame, the door frame right side rotation is connected with the rotation door, the rotation door right side is provided with the primary door, and the primary door is rotatably connected with the rotation door through the first hinge.
[0008] Through the above technical scheme, the sliding column slides in the inner wall of the sliding groove, drives the primary door to move and fold, and the primary door can be folded through the first hinge.
[0009] As a further description of the above technical solution: the moving assembly comprises a sliding frame, the sliding frame is slidingly connected to the right side of the door frame, and the front end of the sliding frame is fixedly connected with a fixed disc.
[0010] By adopting the above technical scheme, the sliding frame is limited by extruding the fixed disc.
[0011] As a further description of the above technical solution: the sliding column is fixedly connected with a fixed plate on one side, and the fixed plate is rotationally connected with the parent door.
[0012] By adopting the above technical scheme, the parent door is moved by the sliding column.
[0013] As a further description of the above technical solution: the right side of the door frame is threadedly connected with a bolt, and the upper and lower ends of the right side of the door frame are both provided with a sliding groove.
[0014] By adopting the above technical scheme, the sliding frame is limited by the bolt.
[0015] As a further description of the above technical solution: the upper and lower ends of the sliding frame are both fixedly connected with a sliding block, the sliding block is slidingly connected with the sliding groove, and the sliding frame is provided with a slot.
[0016] By adopting the above technical scheme, the sliding block slides in the inner wall of the sliding groove, and the sliding frame is driven to slide.
[0017] As a further description of the above technical solution: the inner wall of the sliding frame is slidingly connected with a sliding door, and the sliding door is slidingly connected with the slot.
[0018] By adopting the above technical scheme, one end of the sliding door is limited, and the sliding door is limited.
[0019] As a further description of the above technical solution: the left side of the sliding door is provided with a sub-door.
[0020] By adopting the above technical scheme, the sliding door is telescopic, and the sub-door is telescopic.
[0021] As a further description of the above technical solution: the sub-door and the sliding door are rotationally connected through a second hinge.
[0022] By adopting the above technical scheme, the sub-door can be telescopic and can be rotated.
[0023] Compared with the prior art, the utility model has the advantages of:
[0024] 1. The utility model provides a kind of stainless steel primary-secondary building door, first through sub-door and parent door can be opened according to actual traffic demand respectively or simultaneously, when personnel frequently enters and exits and carries less goods, can only open sub-door, it is convenient and fast, when needing to carry large goods, parent door and sub-door can be opened simultaneously, provide larger traffic space, effectively improve the use convenience and flexibility of building door, meet the traffic requirement under different scenes.
[0025] 2, the utility model provides a kind of stainless steel primary-secondary building door, through the rotation of rotating door and door frame, the connection of parent door and rotating door and sliding column, the sliding of sliding frame and door frame through sliding block and sliding slot, whole building door structure is stable, can withstand frequent opening and closing operation and certain external force impact in long-term use process, not prone to deformation, loosening and other problems, guarantee the safety and durability of building door, reduce the frequency of maintenance and replacement, reduce use cost. DRAWINGS
[0026] Figure 1 It is the whole structure schematic diagram of the utility model;
[0027] Figure 2 It is the sub-door retracting structure schematic diagram of the utility model;
[0028] Figure 3 It is the cross section structure schematic diagram of the door frame of the utility model;
[0029] Figure 4 It is the structure schematic diagram of the sliding frame of the utility model.
[0030] In the drawing: 1, door frame; 2, rotating door; 3, parent door; 4, first hinge; 5, bolt; 6, sliding slot; 7, sliding groove; 8, sliding column; 9, fixed plate; 10, sliding frame; 11, sliding block; 12, slot hole; 13, sliding door; 14, sub-door; 15, second hinge; 16, fixed disc. DETAILED DESCRIPTION
[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model.
[0032] For further understanding the contents of the utility model, refer to the drawings to the utility model detailed description.
[0033] Refer to Figure 1The utility model discloses a stainless steel primary-secondary building door, including door frame 1, the right side of door frame 1 is rotatably connected with rotating door 2, the right side of rotating door 2 is provided with the primary door 3, the primary door 3 is rotatably connected with rotating door 2 through first hinge 4, the left side of sliding door 13 is provided with secondary door 14, and door frame 1, rotating door 2, primary door 3, secondary door 14 and sliding door are all stainless steel, and door frame 1 is as the support frame of whole door, plays the role of fixed and carries other components.
[0034] Referring to Figure 2 And Figure 3 The left side of door frame 1 is provided with sliding groove 7 on the upper end and the lower end, sliding column 8 is slidably connected in the inner wall of sliding groove 7, and sliding groove 7 provides sliding track for sliding column 8, sliding column 8 is closely installed in sliding groove 7 and can freely slide therein, and the one side of sliding column 8 is fixedly connected with fixed plate 9, and fixed plate 9 is rotatably connected with primary door 3, the right side of door frame 1 is screw-connected with bolt 5, and the sliding frame 10 is limitedly controlled by rotating bolt 5 to limit control fixed disc 16, the left side of door frame 1 is provided with sliding groove 6 on the upper end and the lower end, and the secondary door 14 is rotatably connected with sliding door 13 through second hinge 15, so that primary door 3 can be stably supported and guided during opening and closing.
[0035] Referring to Figure 4The door frame 1 right side is provided with a moving assembly, the moving assembly includes a sliding frame 10, the sliding frame 10 is slidably connected in the door frame 1 right side interior, the sliding frame 10 front end is fixedly connected with a fixed disc 16, the sliding frame 10 upper and lower two ends top are all fixedly connected with a sliding block 11, and the sliding block 11 is slidably connected with the sliding slot 6, the smooth sliding of the sliding block 11 in the sliding slot 6 ensures that the sliding frame 10 can stably move left and right in the door frame 1 right side, the sliding frame 10 interior is provided with a slot hole 12, the sliding frame 10 inner wall is slidably connected with a sliding door 13, and the sliding door 13 is slidably connected with the slot hole 12, so that the sliding door 13 can freely slide in the sliding frame 10, thereby adjusting the opening degree of the door, and a sub-door 14 is located on the left side of the sliding door 13 and is rotatably connected with the sliding door 13 through a second hinge 15, and the design of the sub-door 14 increases the use flexibility of the door, in some cases, only a small passing space is required, and the sub-door 14 can be opened only, and the sub-door 14 can be conveniently opened and closed relative to the sliding door 13 through the rotation of the second hinge 15, to meet different passing requirements.
[0036] Working principle: install the door frame 1 at the building door hole, ensure that it is firmly installed and the position is accurate. Rotate the door 2 right side rotatably connected with the mother door 3 through the first hinge 4, ensure that the mother door 3 can be opened and closed relative to the door 2, make the sliding column 8 can smoothly slide in the sliding slot 7, provide support and guide for the opening and closing of the mother door 3, push the mother door 3 to make the sliding column 8 move with the fixed plate 9, drive the mother door 3 to rotate through the first hinge 4, fold, rotate the bolt 5 to the fixed disc 16, limit and control the sliding frame 10, and the sliding slot 6 is formed in the inner wall of the upper and lower ends of the door frame 1 right side. Install the sliding frame 10 in the door frame 1 right side interior, make the sliding block 11 fixedly connected on the upper and lower two ends top of the sliding frame 10 slidably connected with the sliding slot 6, ensure that the sliding frame 10 can stably slide in the door frame 1 right side, make the sub-door 14 can rotate through the second hinge 15, and the sliding door 13 and the sub-door 14 can slide into the sliding frame 10, so that the door frame 1 is opened to the maximum.
[0037] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A stainless steel parent / child security door comprising a door frame (1) characterised in that: The door frame (1) right side rotation is connected with the rotating door (2), the rotating door (2) right side is provided with female door (3), the female door (3) and rotating door (2) between through first hinge (4) rotation is connected, the door frame (1) left side upper and lower both ends inner wall are all set with sliding slot (7), the sliding slot (7) inner wall is slidably connected with sliding column (8), the door frame (1) right side is provided with moving assembly.
2. The stainless steel parent / child door according to claim 1, wherein: The moving assembly includes sliding frame (10), the sliding frame (10) is slidably connected in the door frame (1) right side interior, the sliding frame (10) front end is fixedly connected with fixed disc (16).
3. The security door according to claim 1, wherein: The sliding column (8) relative one side is fixedly connected with fixed plate (9), and the fixed plate (9) is rotatably connected with the female door (3).
4. The security door according to claim 1, wherein: The door frame (1) right side interior is threadedly connected with bolt (5), the door frame (1) right side upper and lower both ends inner wall are all set with sliding slot (6).
5. The security door according to claim 2, wherein: The sliding frame (10) upper and lower both ends top are all fixedly connected with sliding block (11), and the sliding block (11) is slidably connected with the sliding slot (6), the sliding frame (10) interior is set with slot (12).
6. The security door according to claim 2, wherein: The sliding frame (10) inner wall is slidably connected with sliding door (13), and the sliding door (13) is slidably connected with the slot (12).
7. The security door according to claim 6, wherein: The sliding door (13) left side is provided with sub door (14).
8. The bi-fold security door according to claim 7, wherein: The sub door (14) and sliding door (13) between through second hinge (15) rotation is connected.