Door body structure with self-aligning door shaft

By designing a door shaft device for self-aligning door shafts in the door body structure, the problems of low installation efficiency and difficult to ensure coaxiality of traditional door frames and door leaf connection methods are solved, and efficient installation and long-life door body structure is achieved.

CN222457201UActive Publication Date: 2025-02-11ZHEJIANG XINGYUE SECURITY TECH CO LTD
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Patent Information

Application Number
CN202420927726.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-29
Publication Date
2025-02-11
Estimated Expiration
2034-04-29

AI Technical Summary

Technical Problem

The hinge connection between the traditional door frame and the door leaf has problems such as low installation efficiency, difficulty in ensuring coaxiality, and misalignment of installation leads to shaft wear, resulting in unsmooth door opening and closing and reduced service life.

Method used

A door body structure with a self-aligning door shaft is designed. Through a door shaft device combining the upper door shaft assembly and the lower door shaft assembly, the coaxial degree adjustment between the door leaf and the door frame is achieved by using the self-aligning bottom shaft and the adjustment cap. , ensure that the door shaft is subjected to uniform stress.

Benefits of technology

It improves the installation efficiency and service life of the door body, ensures smooth opening and closing of the door leaf, avoids abnormal noises when opening the door, and improves the strength and airtight effect of the door body.

✦ Generated by Eureka AI based on patent content.

Smart Images

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    Figure CN222457201U_ABST
Patent Text Reader

Abstract

The utility model discloses a door body structure with a self-aligning door spindle, and aims to provide the door body structure with the self-aligning door spindle, which is reasonable in structure, high in door body strength, efficient and convenient to install and capable of ensuring the coaxiality between a door leaf and a door frame, and comprises the door frame and the door leaf, and a door spindle device is arranged between the door frame and the door leaf. The door shaft device comprises an upper door shaft assembly matched with the upper portion of the door body and a lower door shaft assembly matched with the lower portion of the door body, and the lower door shaft assembly comprises a base fixed to the door frame, a lining plate matched with the door leaf, a self-aligning bottom shaft eccentrically matched with the base and an adjusting turncap for controlling rotation adjustment of the self-aligning bottom shaft. A plurality of adjusting grooves are evenly formed in the adjusting turncap, and adjusting holes for limiting shifting of the adjusting grooves are formed in the self-aligning bottom shaft.
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Description

Technical Field

[0001] The utility model relates to the technical field of doors, in particular to a door body structure with a self-aligning door shaft. Background Art

[0002] Anti-theft security doors are widely used in important public buildings such as high-rise buildings, shopping malls, hotels, entertainment venues, etc. As an extremely important component of building fire protection facilities, the quality of its products is very important.

[0003] The door is composed of two major components: the door frame and the door leaf. The traditional connection between the door frame and the door leaf is mainly hinged. There are basically three or more hinges, which are installed in the upper, middle and lower parts respectively. The traditional hinge connection method has a simple structure and has the following problems and defects: First, due to the large number of installations, the installation efficiency is very low; second, it is difficult to ensure the coaxiality between the door leaf and the door frame during the installation process, resulting in the door leaf opening and closing not being smooth enough and abnormal noise; third, it cannot be debugged before installation. If the installation is misaligned, the hinge shaft will be unevenly stressed, resulting in a certain degree of shaft wear, resulting in the force required to open and close the door becoming greater and greater, the product is severely worn, and the service life is greatly reduced. Therefore, further optimization and improvement are urgently needed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art and to propose a door body structure with a self-aligning door axis which has a reasonable structure, high door body strength, efficient and convenient installation and can ensure the coaxiality between the door leaf and the door frame.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A door body structure with a self-aligning door axis, including a door frame and a door leaf, a door axis device is arranged between the door frame and the door leaf, the door axis device includes an upper door axis assembly matched with the upper part of the door body and a lower door axis assembly matched with the lower part of the door body, the lower door axis assembly includes a base fixed on the door frame, a lining plate matched with the door leaf, a self-aligning bottom axis eccentrically matched with the base, and an adjusting screw cap for controlling the rotation adjustment of the self-aligning bottom axis, the adjusting screw cap is evenly provided with a plurality of adjusting grooves, and the self-aligning bottom axis is provided with an adjusting hole for limiting the movement of the adjusting grooves.

[0007] Preferably, an adjusting screw is provided between the self-aligning bottom shaft and the liner plate.

[0008] Preferably, the upper door shaft assembly includes an upper support arm seat matched on the door frame, an upper door shaft matched on the door leaf, and a rotating shaft slidably matched on the upper door shaft, the upper door shaft is integrally formed with the leaf support arm seat, and a limiting bolt is provided on the rotating shaft.

[0009] Preferably, a decorative cover plate is provided on the side of the upper support arm seat opposite to the fan support arm seat.

[0010] Preferably, the top of the door leaf is provided with an upper groove matched with the upper door shaft, and the bottom thereof is provided with a lower groove matched with the adjusting screw cap.

[0011] Preferably, an upper sealing member and a lower sealing member are further provided between the door frame and the door leaf.

[0012] Preferably, the frame of the door frame is made of stainless steel by die-casting.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model has a door body structure with a self-aligning door shaft. The door shaft device composed of an upper door shaft assembly and a lower door shaft assembly reduces the required installation parts and improves the installation efficiency. The door leaf is provided with groove installation positions for the upper door shaft assembly and the lower door shaft assembly to avoid installation misalignment, ensure that the door shaft is evenly stressed, and improve the service life.

[0015] 2. The utility model has a door body structure with a self-adjusting door shaft. The self-adjusting bottom shaft and the adjusting screw cap on the lower door shaft assembly realize the adjustment of the gap between the door leaf and the door frame, ensure the coaxiality of the installation between the lower door shaft assembly and the upper door shaft assembly, ensure the smooth opening and closing of the door leaf, and avoid abnormal noise when opening the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a door structure with a self-aligning door shaft according to the utility model;

[0017] Figure 2 This is a cross-sectional view of a door structure with a self-aligning door shaft according to the utility model. Figure 1 ;

[0018] Figure 3 This is a cross-sectional view of a door structure with a self-aligning door shaft according to the utility model. Figure 2 ;

[0019] Figure 4 This is a schematic diagram of the structure of the door shaft device of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the self-adjusting bottom shaft of this utility model. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 5 A door structure with a self-aligning door axis, comprising a door frame 1 and a door leaf 2, a door axis device 3 is arranged between the door frame 1 and the door leaf 2, the door axis device 3 comprises an upper door axis assembly 31 matched with the upper part of the door body and a lower door axis assembly 32 matched with the lower part of the door body, the lower door axis assembly 32 comprises a base 321 fixed on the door frame 1, a lining plate 322 matched with the door leaf 2, a self-aligning bottom axis 323 eccentrically matched with the base 321, and an adjusting screw cap 324 for controlling the rotation adjustment of the self-aligning bottom axis 323, a plurality of adjusting slots 325 are evenly arranged on the adjusting screw cap 324, and the self-aligning bottom axis 323 is provided with a plurality of adjusting slots 325 An adjustment hole 326 is provided for limiting the movement of the adjustment groove 325. The upper parts of the door frame 1 and the door leaf 2 are connected by the upper door shaft assembly 31, and the lower parts are connected by the lower door shaft assembly 32. The upper door shaft is fixed and limited. The lower door shaft assembly 32 is fine-tuned by rotating the adjustment screw cap 314 to ensure the clearance between the door frame 1 and the door leaf 2 to ensure the coaxiality of the installation between the lower door shaft assembly and the upper door shaft assembly, thereby ensuring smooth opening and closing of the door leaf. The adjustment work of the adjustment screw cap 324 is achieved by moving the adjustment groove 325, and the limit after adjustment is achieved by inserting the limit screw into the adjustment hole 326. The structure is reasonable and the installation and adjustment are convenient.

[0023] An adjusting screw 327 is provided between the self-aligning bottom shaft 323 and the lining plate 322. The adjusting screw 327 controls the positional relationship of the self-aligning bottom shaft 323 in the lining plate 322, optimizes the adjustment work, and ensures the coaxiality of the upper and lower door shaft assemblies.

[0024] The upper door shaft assembly 31 includes an upper support arm seat 311 that cooperates with the door frame 1, an upper door shaft 312 that cooperates with the door leaf 2, and a rotating shaft 313 that slides on the upper door shaft 312. The upper door shaft 312 is integrally formed with a leaf support arm seat 314, and a limiting bolt 315 is provided on the rotating shaft 313. The upper support arm seat 311 is engaged with the upper door shaft 312 through the rotating shaft 313. When the door leaf is installed on the door frame, the rotating shaft 313 is first moved downward and limited by the limiting bolt 315 to avoid interference during installation. After installation, the rotating shaft 313 is moved upward and rotationally engaged with the upper support arm seat 311. The upper door shaft assembly 31 is very simple and quick.

[0025] A decorative cover plate 316 is provided on one side of the upper support arm seat 311 opposite to the fan support arm seat 314. The decorative cover plate 316 ensures that the upper support arm seat 311 is stably fixed on the door frame while also ensuring the beauty of the surface of the opened door frame.

[0026] The top of the door leaf 2 is provided with an upper groove 21 adapted to the upper door shaft 312, and the bottom thereof is provided with a lower groove 22 adapted to the adjusting screw cap 314. The installation positions of the upper groove 21 and the lower groove 22 ensure the upper door shaft assembly 31 and the lower door shaft assembly 32, thereby avoiding installation misalignment, ensuring that the door shaft is evenly stressed, and improving the service life.

[0027] An upper seal 4 and a lower seal 5 are also provided between the door frame 1 and the door leaf 2, and the sealing improves the airtightness of the door body.

[0028] The frame of the door frame 1 is die-casted from stainless steel, ensuring the strength and aesthetics of the door frame.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A door structure with a self-aligning door shaft, comprising a door frame and a door leaf, characterized in that: A door axis device is arranged between the door frame and the door leaf, and the door axis device includes an upper door axis assembly matched with the upper part of the door body and a lower door axis assembly matched with the lower part of the door body, the lower door axis assembly includes a base fixed on the door frame, a lining plate matched with the door leaf, a self-aligning bottom shaft eccentrically matched with the base, and an adjusting screw cap for controlling the rotation adjustment of the self-aligning bottom shaft, a plurality of adjusting grooves are evenly arranged on the adjusting screw cap, and an adjusting hole for limiting the movement of the adjusting groove is arranged on the self-aligning bottom shaft.

2. A door structure with a self-aligning door shaft according to claim 1, characterized in that: An adjusting screw is provided between the self-aligning bottom shaft and the lining plate.

3. The door structure with a self-aligning door shaft according to claim 1, characterized in that: The upper door shaft assembly includes an upper support arm seat matched on the door frame, an upper door shaft matched on the door leaf, and a rotating shaft slidably matched on the upper door shaft. The upper door shaft is integrally formed with the leaf support arm seat, and a limiting bolt is arranged on the rotating shaft.

4. The door structure with a self-aligning door shaft according to claim 3, characterized in that: A decorative cover plate is arranged on one side of the upper support arm seat opposite to the fan support arm seat.

5. The door structure with a self-aligning door shaft according to claim 4, characterized in that: The top of the door leaf is provided with an upper groove matched with the upper door shaft, and the bottom of the door leaf is provided with a lower groove matched with the adjusting screw cap.

6. A door structure with a self-aligning door shaft according to any one of claims 1 to 5, characterized in that: An upper sealing member and a lower sealing member are also arranged between the door frame and the door leaf.

7. A door structure with a self-aligning door shaft according to any one of claims 1 to 5, characterized in that: The frame of the door frame is made of stainless steel by die-casting.