A concealed joist construction

Abstract

The utility model relates to the technical field of building keel, disclose a concealed frame hidden keel structure, its characterized in that, including ceiling suspended ceiling column, the ceiling of building frame fixed with ceiling suspended ceiling column, the bottom of ceiling suspended ceiling column is connected with mounting bracket through bolt sleeve bolt fixedly, the surface bolt connection of mounting bracket has fixed bolt part, the bottom fixed connection of fixed bolt part has bolt column. The utility model discloses a vertical force transmission path of '' ceiling suspended ceiling column - mounting bracket - bolt column - clamping sliding block'', cooperate with the clamping groove on the framework of the framework support framework and hidden keel wedge tight structure, form the three -dimensional connection system of multidirectional limiting. The annular limiting flange of disc -like clamping sliding block cooperates with the clamping groove recess, prevents horizontal displacement, and the reinforcing rib plate is welded to form a support net, and partial load is dispersed to the overall structure, effectively avoids single -point stress failure, and promotes the anti -vibration and anti -impact performance.

Description

Technical Field

[0001] This utility model relates to the field of building keel, and in particular to a concealed keel structure. Background Technology

[0002] In the field of architectural decoration, the keel structure commonly used in ceiling projects mainly serves to support decorative panels and transfer loads. Traditional exposed keel structures have drawbacks such as exposed keels, affecting aesthetics, easy dust accumulation, and cumbersome installation. While existing concealed keel structures can hide the keels, the following technical problems still exist in practical applications:

[0003] Insufficient connection stability:

[0004] Existing concealed frame keel systems mostly use simple snap-fit ​​or single-point bolt fixing. When subjected to vibration or load changes, the keel and supporting structure are prone to displacement, causing the decorative panels to loosen or even fall off.

[0005] Low installation and debugging efficiency:

[0006] Traditional concealed framing systems rely on manual on-site adjustments, requiring repeated disassembly and adjustment, which is time-consuming and labor-intensive. For example, some structures use welded supports, and any misalignment necessitates complete rework, failing to meet the rapid installation requirements of prefabricated buildings.

[0007] Based on this, we propose a concealed frame keel structure. Utility Model Content

[0008] To address the technical problems of insufficient connection stability and low installation and debugging efficiency, this utility model provides a concealed frame keel structure.

[0009] This utility model is achieved by the following technical solution: a concealed frame keel structure, characterized in that it includes a ceiling column, the ceiling column is fixed to the ceiling frame of the building, the bottom end of the ceiling column is fixedly connected to an installation frame by a bolt sleeve, the surface of the installation frame is bolted to a fixing bolt part, and the bottom end of the fixing bolt part is fixedly connected to a bolt column.

[0010] The fixing bolt part includes a fixing bolt and an anti-loosening washer. The surface of the mounting bracket has a slot. The fixing bolt passes through the slot on the mounting bracket and is integrally connected with the bolt post.

[0011] The bottom end of the bolt column is integrally fixed with a snap-fit ​​slider; the snap-fit ​​slider slides and snaps into the inside of the support frame. The bottom end of the ceiling column is bolted to the mounting bracket via a bolt sleeve. The fixing bolt part on the surface of the mounting bracket is connected to the bolt column, forming a vertical force transmission path of "ceiling column - mounting bracket - bolt column". The snap-fit ​​slider at the bottom end of the bolt column is embedded inside the support frame, transferring the load to the horizontally arranged support frame.

[0012] The top of the support frame has a slot, which is a right-angled groove on the top surface of the support frame. The sliding block is disc-shaped and slides into the slot. Both ends of the support frame extend integrally to form frame plates. Hidden ribs are engaged on the inner side of the frame plates. The frame plates are inclined, and protruding blocks are provided at the bottom. The top of the hidden ribs is positioned between the frame plates. Reinforcing ribs are fixedly connected between the two sets of support frames. The reinforcing ribs are I-shaped steel plates, and their transverse sections are fixedly connected to the sides of the two sets of support frames by welding.

[0013] As a further improvement to this utility model, the top of the ceiling column is provided with expansion bolts, which are fixedly connected to the concrete base or steel structure frame of the ceiling frame to form the support base of the entire keel structure.

[0014] As a further improvement to this utility model, the fixing bolt part adopts a combination of "fixing bolt + anti-loosening washer". The slots on the surface of the mounting bracket allow for slight adjustment of the bolt position, accommodating installation errors between the ceiling column and the support frame. The anti-loosening washer uses elastic deformation to offset displacement caused by vibration, preventing the bolt from loosening and ensuring connection reliability under dynamic loads such as equipment vibration and personnel movement.

[0015] As a further improvement to this utility model, the annular limiting flange of the disc-shaped locking slider cooperates with the groove of the locking slot on the skeleton to prevent the locking slider from vertically detaching and ensure connection stability.

[0016] As a further improvement to this utility model, the snap-fit ​​slider is disc-shaped and can slide horizontally within the internal groove of the support frame. During installation, the lateral spacing of the support frame can be flexibly adjusted by adjusting the position of the snap-fit ​​slider in the groove on the frame, without disassembling the entire structure, thus improving installation efficiency.

[0017] As a further improvement to this utility model, the supporting frame is fixed to the hidden keel by the slot on the top of the frame and the frame plates at both ends. The hidden keel, as a component that directly supports the decorative panel, is limited at its top by the inclined blocks of the frame plates, forming a load transfer chain of "supporting frame - hidden keel - decorative panel", which ultimately distributes the load to the entire ceiling system.

[0018] As a further improvement to this utility model, the staff can control the movement of the hidden keel inside the frame plate, and attach the hidden keel storage clip to the inside of the frame plate to hide and protect the hidden keel, which can both ensure aesthetics and protect the hidden keel.

[0019] As a further improvement to this utility model, multiple sets of reinforcing ribs are provided to form a support network. The reinforcing ribs not only suppress lateral deformation of the support frame but also distribute concentrated local loads throughout the network, improving the overall structural integrity. For example, when a support frame is subjected to a sudden load, the reinforcing ribs transfer the force to adjacent frames through welding points, preventing single-point failure.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. This utility model utilizes a vertical force transmission path of "ceiling column - mounting bracket - bolt column - snap-fit ​​slider," combined with the slots on the supporting frame and the wedging structure of the hidden keel, to form a multi-directional limiting three-dimensional connection system. The annular limiting flange of the disc-shaped snap-fit ​​slider engages with the groove of the slot to prevent horizontal displacement; the welded reinforcing ribs form a support mesh, distributing local loads to the overall structure, effectively avoiding single-point stress damage, and improving vibration and impact resistance.

[0022] 2. This utility model features a concealed keel that is completely embedded inside the supporting frame via a frame clip, with no exposed components on the surface, thus meeting aesthetic requirements. Furthermore, the concealed keel and frame clip employ a detachable snap-fit ​​structure, allowing for maintenance by removing only the relevant decorative panels and corresponding keels without damaging the overall ceiling, reducing maintenance costs and improving ease of use.

[0023] 3. The snap-fit ​​slider of this utility model can slide laterally within the support frame to adjust the spacing, and the support frame can be positioned without disassembly; the grooves on the surface of the mounting bracket and the bolt columns allow for fine adjustment of the verticality, avoiding the rework problem of traditional welding.

[0024] 4. The fixing bolt part of this utility model adopts a combination of "fixing bolt + anti-loosening washer", which uses the elastic deformation of the washer to offset vibration displacement and prevent the bolt from loosening. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This utility model Figure 1 Schematic diagram of the middle section of the structure;

[0027] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure of region A in the middle;

[0028] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure of region B in the middle.

[0029] Explanation of key symbols:

[0030] 1. Ceiling column; 2. Mounting bracket; 3. Bolt sleeve; 4. Fixing bolt part; 5. Bolt column; 6. Clip-on slider; 7. Support frame; 8. Frame slot; 9. Frame clamping plate; 10. Concealed keel; 11. Reinforcing rib plate. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0032] Example 1:

[0033] Please combine Figures 1-4 This embodiment proposes a concealed keel structure, characterized in that it includes a ceiling column 1, which is fixed to the ceiling frame of the building. The top of the ceiling column 1 is provided with an expansion bolt, which is fixedly connected to the concrete base or steel structure frame of the ceiling frame to form the support base of the entire keel structure.

[0034] The bottom end of the ceiling column 1 is fixedly connected to the mounting bracket 2 by bolt sleeve 3. The surface of the mounting bracket 2 is bolted with a fixing bolt part 4, and the bottom end of the fixing bolt part 4 is fixedly connected to the bolt column 5.

[0035] The fixing bolt section 4 includes a fixing bolt and an anti-loosening washer. The mounting bracket 2 has slots on its surface, through which the fixing bolt passes and is integrally connected to the bolt post 5. The fixing bolt section 4 uses a combination of "fixing bolt + anti-loosening washer." The slots on the surface of the mounting bracket 2 allow for slight adjustments to the bolt's position, accommodating installation errors between the ceiling column 1 and the support frame 7. The anti-loosening washer uses elastic deformation to offset displacement caused by vibration, preventing the bolt from loosening and ensuring connection reliability under dynamic loads such as equipment vibration and personnel movement.

[0036] The bottom end of the bolt column 5 is integrally fixed with a snap-fit ​​slider 6; the snap-fit ​​slider 6 is slidably snapped into the interior of the support frame 7. The bottom end of the ceiling column is bolted to the mounting bracket 2 via bolt sleeve 3. The fixing bolt part 4 on the surface of the mounting bracket 2 is connected to the bolt column 5, forming a vertical force transmission path of "ceiling column 1 - mounting bracket 2 - bolt column 5". The snap-fit ​​slider 6 at the bottom end of the bolt column 5 is embedded inside the support frame 7, transferring the load to the horizontally arranged support frame 7.

[0037] The top of the support frame 7 is provided with a frame slot 8, which is a right-angled groove on the top surface of the support frame 7. The locking slider 6 is disc-shaped and is slidably locked inside the frame slot 8.

[0038] In the preferred embodiment, the snap-fit ​​slider 6 is disc-shaped and can slide horizontally within the internal groove of the support frame 7. During installation, the lateral spacing of the support frame 7 can be flexibly adjusted by regulating the position of the snap-fit ​​slider 6 in the slot 8 on the frame, without disassembling the entire structure, thus improving installation efficiency. After sliding into place, the annular limiting flange of the disc-shaped snap-fit ​​slider 6 engages with the groove of the slot 8 on the frame to prevent the snap-fit ​​slider 6 from vertically detaching, ensuring connection stability.

[0039] The two ends of the supporting frame 7 extend in an integrated manner to form the frame plate 9. The inner side of the frame plate 9 is fitted with a hidden keel 10. The frame plate 9 is inclined. The bottom of the frame plate 9 is provided with a protruding locking block. The top of the hidden keel 10 is limited between the frame plates 9.

[0040] In the specific technical solution, the supporting frame 7 fixes the hidden keel 10 through the top frame slot 8 and the frame plates 9 at both ends. The hidden keel 10, as a component that directly supports the decorative panel, has its top end limited by the inclined blocks of the frame plates 9, forming a load transfer chain of "supporting frame 7 - hidden keel 10 - decorative panel", which ultimately distributes the load to the entire ceiling system;

[0041] A further specific technical solution involves embedding the snap-fit ​​slider 6 at the bottom of the bolt column 5 inside the support frame 7. The snap-fit ​​slider 6 can slide inside the support frame 7 for adjustment. At the same time, the operator can control the movement of the hidden keel 10 inside the frame plate 9, and store and snap the hidden keel 10 inside the frame plate 9 to hide and protect the hidden keel 10. This not only ensures aesthetics but also protects the hidden keel 10.

[0042] A reinforcing rib plate 11 is fixedly connected between the two sets of supporting frames 7. The reinforcing rib plate 11 is a "I"-shaped steel plate, and its transverse section is fixedly connected to the side of the two sets of supporting frames 7 by welding. There are multiple sets of reinforcing rib plates 11 to form a support net.

[0043] A further technical solution is that the stiffening rib 11 can not only suppress the lateral deformation of the supporting frame 7, but also distribute the local concentrated load to the entire network, thereby improving the overall structural integrity. For example, when a supporting frame 7 is subjected to a sudden load, the stiffening rib 11 transfers the force to the adjacent frame through the welding point, avoiding single-point failure.

[0044] The overall working principle of this utility model is as follows:

[0045] I. Overall Installation and Load Transfer Principles

[0046] Top fixed

[0047] The ceiling column 1 is fixed to the concrete base or steel structure frame of the building ceiling frame by the expansion bolts at the top, forming the support base of the entire keel structure.

[0048] Intermediate layer connection

[0049] The bottom end of the ceiling column is bolted to the mounting bracket 2 via bolt sleeve 3. The fixing bolt part 4 on the surface of the mounting bracket 2 is connected to the bolt column 5, forming a vertical force transmission path of "ceiling column 1 - mounting bracket 2 - bolt column 5". The snap-fit ​​slider 6 at the bottom end of the bolt column 5 is embedded in the support frame 7, transferring the load to the horizontally arranged support frame 7.

[0050] Underlying support and concealment

[0051] The supporting frame 7 is fixed to the hidden keel 10 by the top frame slot 8 and the frame plates 9 at both ends. The hidden keel 10, as a component that directly supports the decorative panel, is limited at its top by the inclined blocks of the frame plates 9, forming a load transfer chain of "supporting frame 7-hidden keel 10-decorative panel", which ultimately distributes the load to the entire ceiling system;

[0052] The locking slider 6 at the bottom of the bolt column 5 is embedded inside the support frame 7. The locking slider 6 can slide inside the support frame 7 for adjustment. At the same time, the operator can control the hidden keel 10 to move inside the frame plate 9, and store the hidden keel 10 inside the frame plate 9 to hide and protect the hidden keel 10. This can ensure both aesthetics and protection of the hidden keel 10.

[0053] II. Linkage Principle of Key Structures

[0054] The snap-fit ​​slider 6 is disc-shaped and can slide horizontally within the internal groove of the support frame 7. During installation, the lateral spacing of the support frame 7 can be flexibly adjusted by adjusting the position of the snap-fit ​​slider 6 in the slot 8 on the frame, without disassembling the entire structure, thus improving installation efficiency. After sliding into place, the annular limiting flange of the disc-shaped snap-fit ​​slider 6 engages with the groove of the slot 8 on the frame to prevent the snap-fit ​​slider 6 from vertically disengaging, ensuring connection stability.

[0055] Construction of the support network for stiffening ribs

[0056] Multiple sets of I-shaped reinforcing ribs 11 are horizontally welded to the sides of adjacent support frames 7, forming a planar support network. The reinforcing ribs 11 not only suppress lateral deformation of the support frames 7, but also distribute localized concentrated loads throughout the network, improving the overall structural integrity. For example, when a support frame 7 is subjected to a sudden load, the reinforcing ribs 11 transfer the force to adjacent frames through the welding points, preventing single-point failure.

[0057] III. Dynamic Load Response and Vibration Reduction Principles

[0058] Anti-loosening mechanism for bolted connections

[0059] The fixing bolt section 4 uses a combination of "fixing bolt + anti-loosening washer". The slots on the surface of the mounting bracket 2 allow for slight adjustment of the bolt position to accommodate installation errors between the ceiling column 1 and the support frame 7. The anti-loosening washer uses elastic deformation to offset displacement caused by vibration, preventing the bolt from loosening and ensuring connection reliability under dynamic loads such as equipment vibration and personnel movement.

[0060] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A concealed frame keel structure, characterized in that, The ceiling column (1) is included. The bottom end of the ceiling column (1) is fixedly connected to the mounting bracket (2) by bolt sleeve (3). The surface of the mounting bracket (2) is bolted to the fixing bolt part (4). The fixing bolt part (4) includes a fixing bolt and an anti-loosening washer. The bottom end of the fixing bolt part (4) is fixedly connected to the bolt column (5). The bottom end of the bolt column (5) is integrally fixed with a snap-fit ​​slider (6). The snap-fit ​​slider (6) is slidably snapped into the inside of the support frame (7). The top of the support frame (7) is provided with a frame slot (8). The two ends of the support frame (7) extend integrally to form a frame plate (9). The frame plate (9) is inclined. The inner side of the frame plate (9) is snapped with a hidden keel (10). A reinforcing rib plate (11) is fixedly connected between the two sets of support frames (7). The reinforcing rib plate (11) is a "I" shaped steel plate. Its transverse section is fixedly connected to the side of the two sets of support frames (7) by welding. There are multiple sets of reinforcing rib plates (11) to form a support net.

2. The concealed frame keel structure as described in claim 1, characterized in that, The slot (8) on the skeleton is a right-angled groove opened on the top surface of the supporting skeleton (7). The locking slider (6) is disc-shaped and is slidably locked inside the slot (8) on the skeleton.

3. The concealed frame keel structure as described in claim 1, characterized in that, The bottom of the skeleton plate (9) is provided with a protruding locking block, and the top of the hidden keel (10) is limited between the skeleton plates (9).

4. The concealed frame keel structure as described in claim 1, characterized in that, The mounting bracket (2) has slots on its surface. The fixing bolts on the fixing bolt part (4) pass through the slots on the mounting bracket (2) and are integrally connected with the bolt post (5).

5. The concealed frame keel structure as described in claim 1, characterized in that, The ceiling column (1) is fixed to the ceiling frame of the building. The top of the ceiling column (1) is provided with expansion bolts, which are fixedly connected to the concrete base or steel structure frame of the ceiling frame.

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