Door leaf and door frame connecting structure of intelligent door

By adopting the design of multiple sets of connecting components and linkage parts between the door leaf and the door frame of the smart door, the problems of poor stability and wear noise of the existing smart door connection structure are solved, and higher matching accuracy, stability and smooth operation are achieved.

CN223343862UActive Publication Date: 2025-09-16JIANGSU AIZHIJIA FURNITURE MFG CO LTD
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Patent Information

Application Number
CN202422749616.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2025-09-16
Estimated Expiration
2034-11-12

AI Technical Summary

Technical Problem

The connection structure between the door leaf and the door frame of the existing smart door is relatively simple, with poor stability during long-term use, and is prone to mechanical wear and abnormal noise.

Method used

A connection structure between the door leaf and the door frame of an intelligent door is designed, which adopts several groups of connection components. Each group includes a connection base embedded in the door leaf and the door frame, a linkage part is arranged to rotate in the storage cavity, the linkage part provides movement space through the sliding groove, and auxiliary wheels are arranged at both ends of the rotating shaft to reduce friction.

Benefits of technology

It improves the fitting accuracy and stability between the door leaf and the door frame, reduces the impact force when opening and closing the door, reduces noise, simplifies the installation and adjustment process, improves the smoothness of door operation, and optimizes the overall appearance.

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Abstract

The door leaf and door frame connecting structure of the intelligent door comprises a door leaf and a door frame which are matched with each other, a plurality of connecting assemblies for achieving matched rotation of the door leaf and the door frame are arranged between the door leaf and the door frame, each connecting assembly comprises two connecting bottom pieces embedded in the door leaf and the door frame respectively, and containing cavities are formed in the connecting bottom pieces. Linkage pieces are rotationally arranged in the storage cavities, the middles of the two linkage pieces are rotationally arranged in a staggered mode, and sliding grooves for providing movement spaces for the ends of the linkage pieces are formed in the storage cavities; according to the connecting assembly structure of the door leaf and the door frame, smooth and accurate staggered rotation can be achieved, abnormal sound and abrasion caused by friction are effectively reduced, the opening and closing flexibility and stability of a door are improved, and meanwhile the overall attractiveness of the door frame and the door leaf is guaranteed through overall embedded installation of the connecting assembly structure.
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Description

Technical Field

[0001] The utility model belongs to the technical field of intelligent doors, and in particular relates to a connection structure between a door leaf and a door frame of an intelligent door. Background Art

[0002] As intelligence continues to penetrate into our lives, smart doors are being used more and more widely. They mainly optimize people's lives by replacing traditional mechanical unlocking with intelligent unlocking. Among them, the connection structure between the door leaf and the door frame of the smart door is one of the basic components of the door. Especially in the field of smart doors, with the development of intelligent technology, the function and design of doors are constantly being optimized.

[0003] Most existing smart doors rely on traditional hinges to connect the door leaf and the door frame, but these traditional connection methods have some defects. First, the traditional hinge structure is relatively simple, and the rotation is mainly achieved through a pin shaft. Long-term use under the weight of the door leaf can easily lead to mechanical wear and noise problems during subsequent rotation. Secondly, due to the relatively simple design of the connection parts, the rotation coordination between the door leaf and the door frame is not smooth enough.

[0004] Therefore, in order to improve the overall performance of smart doors, practitioners have proposed a connection structure between the door leaf and the door frame of smart doors. Utility Model Content

[0005] The purpose of the present utility model is to provide a connection structure between the door leaf and the door frame of an intelligent door in order to solve the problem that the connection structure between the door leaf and the door frame of the existing intelligent door is relatively simple, has poor stability and is prone to mechanical wear and abnormal noise during long-term use.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions: a door leaf and door frame connection structure of an intelligent door, comprising a door leaf and a door frame that cooperate with each other, and a plurality of connection components are provided between the door leaf and the door frame to realize the coordinated rotation of the two;

[0007] The connecting assembly includes two groups of connecting bottom parts respectively embedded in the door leaf and the door frame. The connecting bottom parts are each provided with a storage cavity. Linkage parts are rotatably arranged in the storage cavity. The middle parts of the two groups of linkage parts are staggered and rotated. The storage cavity is provided with a sliding groove to provide space for the ends of the linkage parts to move.

[0008] Furthermore, the inner wall of the door frame is provided with a sealing strip that matches the door leaf.

[0009] Furthermore, the connecting base is provided with a plurality of groups of threaded holes, and at least two groups of threaded holes are provided.

[0010] Furthermore, the depth of the receiving cavity is greater than half the length of the linkage member.

[0011] Furthermore, the linkage member is placed in the sliding groove and has rotating shafts at both ends of the rotating shaft.

[0012] Furthermore, a buffer assembly is provided on the end wall of the sliding groove cavity;

[0013] The buffer assembly includes a buffer bottom cylinder fixed to the end wall of the sliding groove cavity, an extension column is sleeved in the buffer bottom cylinder, a spring is provided between the buffer bottom cylinder and the extension column, and a rubber sheet is provided at the end of the extension column.

[0014] Beneficial effects: The utility model has reasonable design, simple and stable structure, strong practicality, and has the following beneficial effects:

[0015] 1. Improve the matching accuracy and stability between the door leaf and the door frame: By setting up several sets of connecting components and utilizing the design of linkage parts and sliding grooves, the connection between the door leaf and the door frame is made more firm and precise, ensuring the stability of the door body and the reliability of long-term use;

[0016] 2. Reduce the impact force when opening and closing the door: A buffer component is set in the connection component. Through the cooperation of springs and rubber sheets, it can effectively absorb the impact force generated when the door is opened or closed, reduce noise and extend the service life of the door;

[0017] 3. Simplified installation and adjustment process: The threaded hole design on the connecting base makes the installation process of the door leaf and door frame easier, and can be fine-tuned as needed after installation to ensure a more accurate fit between the door leaf and door frame;

[0018] 4. Improve the smoothness of door operation: By setting auxiliary wheels at both ends of the rotating shaft of the linkage, the friction during the door opening and closing process is reduced, making the opening and closing of the door smoother and more stable, improving the user's operating experience;

[0019] 5. Overall appearance optimization: The hidden installation of the connecting components reduces the overall external leakage, making the connection between the door leaf and the door frame look more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the present utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the connection assembly of the utility model;

[0022] Figure 3 This is a schematic diagram of the matching structure of the linkage parts of the utility model;

[0023] Figure 4 This is a structural diagram of the buffer component of the utility model.

[0024] In the figure: 1-door leaf, 2-door frame, 3-connection component, 4-sealing strip;

[0025] 301-connecting bottom piece, 302-storage cavity, 303-linking piece, 304-sliding groove, 305-threaded hole, 306-auxiliary wheel, 307-buffer piece;

[0026] 3071-buffer bottom cylinder, 3072-extension column, 3073-spring, 3074-rubber sheet. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Example 1:

[0029] Combine Figure 1-3 The illustrated structure of a smart door leaf and door frame connection includes a door leaf 1 and a door frame 2 that cooperate with each other to ensure a sealing effect after the door is closed. A plurality of connection components 3 are provided between the door leaf 1 and the door frame 2 to achieve coordinated rotation between the two.

[0030] Specifically, the connecting component 3 includes two groups of connecting bottom parts 301 respectively embedded in the door leaf 1 and the door frame 2. The connecting bottom parts 301 are each provided with a storage cavity 302. The storage cavity 302 is designed to accommodate and protect the internal linkage parts 303. Linkage parts 303 are rotatably arranged in the storage cavity 302. These linkage parts 303 can rotate freely in the storage cavity 302. The middle parts of the two groups of linkage parts 303 are staggered and rotated to achieve a mutually coordinated linkage effect, ensuring the stability and accuracy of the door leaf 1 when opening and closing. A sliding groove 304 is provided in the storage cavity 302 to provide movable space for the ends of the linkage parts 303. The sliding groove 304 not only provides sufficient movable space to enable the linkage parts 303 to rotate freely, but also reduces wear and extends the service life. This structural design can effectively avoid the friction problem between the door leaf 1 and the door frame 2, improve the performance of the door, and is particularly suitable for application scenarios of smart doors.

[0031] In this embodiment, the inner wall of the door frame 2 is provided with a sealing strip 4 that matches the door leaf 1. The main function of the sealing strip 4 is to ensure that the door leaf 1 can fit tightly with the door frame 2 when closed, thereby effectively isolating the outside air, dust, noise or moisture. This design not only improves the sealing of the door, but also enhances the door's sound insulation, heat insulation and windproof capabilities, making the indoor environment more comfortable and safe. The sealing strip 4 is usually made of rubber, silicone or other elastic materials, and can form a good compression seal between the door leaf 1 and the door frame 2, thereby reducing heat loss and interference from external environmental factors. At the same time, this sealing strip design can also prevent airflow noise caused by air circulation, thereby improving the indoor quietness effect, especially in some places that require a quiet environment, such as offices, bedrooms, etc., the effect is particularly obvious. In addition, the installation position and material selection of the sealing strip 4 also need to be optimized according to the use environment and functional requirements of the door to ensure its durability and good sealing effect.

[0032] In this embodiment, a plurality of groups of threaded holes 305 are provided on the connecting base member 301. The setting of the threaded holes 305 is intended to enhance the connection stability and adjustability between the door leaf 1 and the door frame 2. At least two groups of threaded holes 305 are provided. Usually, these two groups of threaded holes 305 are respectively located at different positions of the connecting base member 301 to ensure that they can be connected to the door frame 2 or the door leaf 1 by bolts or screws during the assembly process. These threaded holes 305 are not only used to fix the position of the connecting base member 301, but also allow necessary adjustments during the installation and maintenance process to achieve a more precise sealing effect or smoother rotation.

[0033] In this embodiment, the depth of the storage cavity 302 is greater than half the length of the linkage member. This design ensures that the linkage member 303 has enough space to be stored and moved in the storage cavity 302, thereby avoiding jamming or damage caused by insufficient space. Specifically, the depth of the storage cavity 302 is half the length of the linkage member 303, which enables the linkage member 303 to be well stored even in an incompletely extended state, and can be smoothly pulled out of the storage cavity 302 when in use. This design improves the flexibility and service life of the linkage member 303, and can also effectively avoid excessive friction or unnecessary wear of the linkage member 303 during use.

[0034] In this embodiment, auxiliary wheels 306 are provided at both ends of the rotating shaft of the linkage part 303 placed in the sliding groove 304. The main purpose of this design is to reduce the direct friction between the linkage part 303 and the sliding groove 304 during the sliding process, ensuring that the linkage part 303 can rotate steadily and smoothly in the sliding groove 304. The auxiliary wheels 306 play a supporting and guiding role, helping the linkage part 303 to maintain a stable trajectory during movement and avoid jamming or wear caused by excessive friction. At the same time, the auxiliary wheels 306 can share the load of the linkage part 303 during the rotation process, reduce the wear between the sliding groove 304 and the linkage part 303, and thus extend the service life of the entire system.

[0035] In this embodiment, Figure 4 The end wall of the sliding groove 304 is provided with a buffer assembly 307. The purpose of this design is to smoothly reduce the impact force of the linkage member 303 when it reaches the end of the sliding groove 304, thereby preventing structural damage or excessive noise caused by excessive impact.

[0036] The buffer assembly includes a buffer bottom cylinder 3071 fixed to the end wall of the sliding groove 304 cavity. The function of the buffer bottom cylinder 3071 is to provide stable support and position fixation for the entire buffer system. An extension column 3072 is provided inside the buffer bottom cylinder 3071. The setting of the extension column 3072 enables the entire buffer structure to be appropriately displaced and compressed when necessary, so as to better absorb impact energy. A spring 3073 is provided between the buffer bottom cylinder 3071 and the extension column 3072. The spring 3073 is the core component of the buffer assembly 307 and is responsible for providing restoring force under the action of external force, helping to alleviate the kinetic energy of the moving parts and avoid violent collision rebound. The pre-compression strength and elastic characteristics of the spring can be adjusted according to actual needs to ensure that during the movement, the buffering effect neither loses sensitivity nor causes excessive slow reaction, thereby ensuring smooth opening and closing of the door body. A rubber sheet 3074 is provided at the end of the extension column 3072. The rubber sheet 3074 plays a role in further absorbing impact force and shock absorption, while reducing noise and vibration.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0038] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A door leaf and door frame connection structure of an intelligent door, comprising a door leaf (1) and a door frame (2) that cooperate with each other, characterized in that: A plurality of connecting components (3) are provided between the door leaf (1) and the door frame (2) to enable the two to rotate in coordination; The connecting assembly (3) comprises two groups of connecting bottom parts (301) respectively embedded in the door leaf (1) and the door frame (2); the connecting bottom parts (301) are each provided with a receiving cavity (302); a linkage part (303) is rotatably arranged in each of the receiving cavities (302); the middle parts of the two groups of linkage parts (303) are staggered and rotatably arranged; a sliding groove (304) is provided in the receiving cavity (302) to provide a movable space for the end of the linkage part (303); The linkage member (303) is placed in the sliding groove (304), and both ends of the rotating shaft are provided with auxiliary wheels (306); The end wall of the sliding groove (304) cavity is provided with a buffer component (307); The buffer assembly comprises a buffer bottom cylinder (3071) fixed to the end wall of the sliding groove (304) cavity, an extension column (3072) is sleeved in the buffer bottom cylinder (3071), a spring (3073) is provided between the buffer bottom cylinder (3071) and the extension column (3072), and a rubber sheet (3074) is provided at the end of the extension column (3072).

2. The door leaf and door frame connection structure of a smart door according to claim 1, characterized in that: The inner wall of the door frame (2) is provided with a sealing strip (4) that matches the door leaf (1).

3. The door leaf and door frame connection structure of a smart door according to claim 2, characterized in that: The connecting bottom piece (301) is provided with a plurality of groups of threaded holes (305), and at least two groups of threaded holes (305) are provided.

4. The door leaf and door frame connection structure of a smart door according to claim 3, characterized in that: The depth of the receiving cavity (302) is greater than half the length of the linkage member (303).