Double-rotating shaft type hidden door structure

Abstract

The utility model provides a kind of double-rotating shaft formula hidden door structure, belong to building and security integrated technical field, including bearing mechanism, including shaft, and the support assembly being set in the outer side of the shaft;Door body mechanism, including hinged in the outer side of the shaft support frame, hollow slot being opened in the inner cavity of the support frame, and support cross bar being fixedly installed in the inner cavity of the hollow slot.The utility model realizes multiple protection by overall design: high-strength bearing material is combined with self-lubricating bushing, both enhance the load-carrying capacity and reduce friction loss, door body frame adopts cross support structure, effectively disperses stress and prevents deformation, multilayer composite sealing assembly cooperates acoustic optimization material, while maintaining sealing while ensuring flexible rotation, limit device accurately controls motion trajectory, avoid the gap caused by deviation, so that hidden door can maintain stable mechanical properties in long-term use, and can continuously exert excellent sound insulation effect.

Description

Technical Field

[0001] This utility model belongs to the field of building and security integration technology, specifically relating to a double-swivel type concealed door structure. Background Technology

[0002] The double-axis concealed door structure is a highly concealed and practical architectural component design. Its core is to achieve multi-angle opening and closing of the door through two sets of precisely linked rotating shafts. Originating from the needs of high-end security and hidden spaces, it is widely used in military facilities, private vaults, museum treasure exhibition areas and other scenarios with extremely high requirements for concealment. Through mechanical optimization, this structure allows the door to be completely flush with the wall when closed.

[0003] As the door is used over time, the weight of the door will cause the bearings to gradually deform, which will affect the fit between the door leaf and the door frame. This not only reduces the structural stability, but also creates gaps that lead to a decrease in sound insulation performance. This linkage between mechanical deformation and acoustic performance requires a holistic solution that ensures both the durability of the bearings and the sealing and sound insulation effect of the door. Utility Model Content

[0004] The purpose of this invention is to provide a double-rotating-axis concealed door structure, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A double-pivot concealed door structure includes,

[0007] The load-bearing mechanism includes a shaft and a support assembly disposed on the outside of the shaft;

[0008] The door mechanism includes a support frame hinged to the outside of the shaft, a hollow groove formed in the cavity of the support frame, and a support crossbar fixedly installed in the cavity of the hollow groove.

[0009] As a preferred embodiment of the present invention, the bearing mechanism further includes a graphite self-lubricating bushing hinged to the outside of the shaft, and a limiting sleeve sleeved on the outside of the shaft.

[0010] As a preferred embodiment of the present invention, the door mechanism further includes a support vertical rod fixedly installed in the hollow groove cavity, a fixing component disposed on the outside of the support vertical rod, and a perforated aluminum plate fixedly installed on the outside of the fixing component.

[0011] As a preferred embodiment of the present invention, the support assembly includes a chromium-molybdenum steel bearing sleeved and installed on the outside of the shaft, and a bushing fixedly installed on the outside of the chromium-molybdenum steel bearing.

[0012] As a preferred embodiment of this utility model, the support assembly further includes a retaining hole formed on the outside of the bushing, and a pre-embedded rod fixedly installed at the end of the shaft.

[0013] As a preferred embodiment of this utility model, the fixing component includes a fixing plate fixedly installed in the inner cavity of the support frame, a sound-absorbing block fixedly installed on the outside of the fixing plate, and a mounting plate fixedly installed on the outside of the sound-absorbing block.

[0014] In a preferred embodiment of this utility model, the perforated aluminum plate is fixedly installed on the outside of the mounting plate, and the support crossbar and the support vertical bar are installed by cross-clamping.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: multiple safeguards are achieved through the overall design: high-strength bearing materials combined with self-lubricating bushings enhance load-bearing capacity and reduce friction loss; the door frame adopts a cross-support structure to effectively disperse stress and prevent deformation; multi-layer composite sealing components combined with acoustically optimized materials ensure rotational flexibility while maintaining sealing performance; and the limiting device precisely controls the movement trajectory to avoid gaps caused by misalignment, enabling the concealed door to maintain stable mechanical performance and continuously exert excellent sound insulation effects during long-term use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial sectional view of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0020] Figure 4 This is a partial exploded view of the overall structure of this utility model;

[0021] Figure 5 For the present utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0022] In the picture:

[0023] 100. Bearing mechanism; 110. Shaft; 120. Support assembly; 121. Chromium-molybdenum steel bearing; 122. Bushing; 123. Clamping hole; 124. Embedded rod; 130. Graphite self-lubricating bushing; 140. Limiting sleeve;

[0024] 200. Door body mechanism; 210. Support frame; 220. Hollow groove; 230. Support crossbar; 240. Support vertical bar; 250. Fixing component; 251. Fixing plate; 252. Sound absorbing block; 253. Mounting plate; 260. Perforated aluminum plate. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Example

[0029] Reference Figure 1-5 This is an embodiment of the present invention, which provides a double-pivot concealed door structure, including:

[0030] The load-bearing mechanism 100 includes a shaft 110 and a support assembly 120 disposed on the outside of the shaft 110;

[0031] The door mechanism 200 includes a support frame 210 hinged to the outside of the shaft 110, a hollow groove 220 formed in the inner cavity of the support frame 210, and a support crossbar 230 fixedly installed in the inner cavity of the hollow groove 220.

[0032] The combination of shaft 110 and support assembly 120 creates a stable rotating structure that can bear the weight of the door, ensuring that the door mechanism 200 can open and close flexibly. The addition of hollow groove 220 and support crossbar 230 enhances the rigidity of the door frame, making it less prone to deformation during long-term use, while also reducing weight and facilitating installation and maintenance.

[0033] Specifically, the bearing mechanism 100 also includes a graphite self-lubricating bushing 130 hinged to the outside of the shaft 110, and a limiting sleeve 140 sleeved on the outside of the shaft 110.

[0034] Among them, the graphite self-lubricating bushing 130 effectively reduces the frictional loss of the shaft 110, improves the smoothness of rotation, and reduces wear problems after long-term use. The limit sleeve 140 precisely controls the opening and closing angle of the door, prevents excessive rotation from causing structural damage, and enhances overall stability.

[0035] Furthermore, the door mechanism 200 also includes a support vertical rod 240 fixedly installed in the inner cavity of the hollow groove 220, a fixing component 250 disposed on the outside of the support vertical rod 240, and a perforated aluminum plate 260 fixedly installed on the outside of the fixing component 250.

[0036] Among them, the supporting vertical rod 240 and the supporting horizontal rod 230 form a cross reinforcement structure, which further improves the torsional resistance of the door. The combination of the fixing component 250 and the perforated aluminum plate 260 not only enhances the strength of the door surface, but also optimizes the acoustic performance, reduces vibration transmission and noise, and is suitable for scenarios with high sound insulation requirements.

[0037] Preferably, the support assembly 120 includes a chromium-molybdenum steel bearing 121 sleeved and installed on the outside of the shaft 110, and a bushing 122 fixedly installed on the outside of the chromium-molybdenum steel bearing 121. The support assembly 120 also includes a retaining hole 123 opened on the outside of the bushing 122, and a pre-embedded rod 124 fixedly installed on the end of the shaft 110.

[0038] Among them, the chromium-molybdenum steel bearing 121 has high strength and corrosion resistance, and is suitable for long-term load-bearing conditions. The bushing 122 protects the bearing and disperses stress, avoids local deformation, and significantly extends the service life of the shaft system. The design of the clasp 123 and the pre-embedded rod 124 facilitates quick positioning and installation, ensures a stable connection between the support component 120 and the building structure, and allows for fine-tuning and calibration, reducing the impact of on-site construction errors on the door closing accuracy.

[0039] Furthermore, the fixing component 250 includes a fixing plate 251 fixedly installed in the inner cavity of the support frame 210, a sound-absorbing block 252 fixedly installed on the outside of the fixing plate 251, and a mounting plate 253 fixedly installed on the outside of the sound-absorbing block 252. A perforated aluminum plate 260 is fixedly installed on the outside of the mounting plate 253, and the support crossbar 230 and the support vertical bar 240 are installed by cross-clamping.

[0040] The fixed plate 251, sound-absorbing block 252, and mounting plate 253 form a multi-layer composite structure. The sound-absorbing block 252 effectively absorbs vibration energy and suppresses noise transmission, while the mounting plate 253 provides a flat fixed base for the perforated aluminum plate 260, taking into account both functionality and aesthetics. The cross-connected support crossbar 230 and support vertical bar 240 further optimize the load distribution and avoid stress concentration. The installation on the outside of the perforated aluminum plate 260 not only improves the surface texture, but its microporous structure can also assist in sound wave scattering, working in conjunction with the sound-absorbing block 252 to achieve a better sound insulation effect.

[0041] When the door mechanism 200 needs to be opened, external force is applied to the support frame 210, and smooth rotation is achieved through the cooperation of the shaft 110 and the chromium-molybdenum steel bearing 121. The graphite self-lubricating bushing 130 ensures smooth rotation without jamming, and the limit sleeve 140 precisely controls the opening angle. When closed, the grid structure composed of the support crossbar 230 and the support vertical bar 240 ensures that the door is accurately reset. The sound-absorbing block 252 in the fixing component 250 absorbs impact vibration, and the perforated aluminum plate 260 synchronously attenuates sound wave transmission. Throughout the process, the embedded rod 124 and the locking hole 123 maintain a stable structural connection, and the bushing 122 disperses the load-bearing stress, so that the concealed door maintains stable mechanical performance and excellent sound insulation effect during repeated opening and closing.

[0042] In summary, through the high-precision cooperation between the shaft 110 and the support assembly 120, a rotation system that combines load-bearing capacity and flexibility is constructed. The graphite self-lubricating bushing 130 effectively reduces friction loss, and the limiting sleeve 140 ensures controllable opening and closing range. The door mechanism 200 adopts a lightweight anti-torsion frame formed by the hollow groove 220 and the cross-connected support crossbar 230 and support vertical bar 240. Combined with the chromium molybdenum steel bearing 121 and the pre-embedded rod 124, it achieves long-term stable load bearing. The acoustic optimization design of the multi-layer fixing assembly 250 and the perforated aluminum plate 260 not only suppresses vibration noise through the sound-absorbing block 252, but also uses the microporous structure of the aluminum plate to scatter sound waves. Ultimately, it achieves a synergistic improvement in structural strength, service life and concealment performance, meeting the mechanical reliability and acoustic stealth requirements in high-frequency use scenarios.

[0043] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0044] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0045] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A double-pivot concealed door structure, characterized in that: include, The load-bearing mechanism (100) includes a shaft (110) and a support assembly (120) disposed on the outside of the shaft (110); The door mechanism (200) includes a support frame (210) hinged to the outside of the shaft (110), a hollow groove (220) formed in the cavity of the support frame (210), and a support crossbar (230) fixedly installed in the cavity of the hollow groove (220).

2. The double-pivot concealed door structure according to claim 1, characterized in that: The bearing mechanism (100) also includes a graphite self-lubricating bushing (130) hinged to the outside of the shaft (110) and a limiting sleeve (140) sleeved on the outside of the shaft (110).

3. The double-pivot concealed door structure according to claim 2, characterized in that: The door mechanism (200) further includes a support vertical rod (240) fixedly installed in the inner cavity of the hollow groove (220), a fixing component (250) disposed on the outside of the support vertical rod (240), and a perforated aluminum plate (260) fixedly installed on the outside of the fixing component (250).

4. The double-pivot concealed door structure according to claim 3, characterized in that: The support assembly (120) includes a chromium-molybdenum steel bearing (121) sleeved on the outside of the shaft (110) and a bushing (122) fixedly installed on the outside of the chromium-molybdenum steel bearing (121).

5. The double-pivot concealed door structure according to claim 4, characterized in that: The support assembly (120) also includes a retaining hole (123) opened on the outside of the bushing (122) and a pre-embedded rod (124) fixedly installed at the end of the shaft (110).

6. The double-pivot concealed door structure according to claim 5, characterized in that: The fixing assembly (250) includes a fixing plate (251) fixedly installed in the inner cavity of the support frame (210), a sound-absorbing block (252) fixedly installed on the outside of the fixing plate (251), and a mounting plate (253) fixedly installed on the outside of the sound-absorbing block (252).

7. The double-pivot concealed door structure according to claim 6, characterized in that: The perforated aluminum plate (260) is fixedly installed on the outside of the mounting plate (253), and the support crossbar (230) and the support vertical bar (240) are installed by cross-clamping.

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