Corridor keel structure which is quickly disassembled and maintained
By introducing a track movement system consisting of slide rails, slide blocks, and pulleys into the corridor keel structure, combined with the design of connectors and joints, the problems of difficult storage and safety hazards of lifting equipment are solved, enabling flexible movement and stable installation of maintenance ladders, and improving maintenance efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIAN GOLDEN GREEN NEW BUILDING MATERIALS CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-09
Smart Images

Figure CN224338391U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corridor keel, and in particular to a corridor keel structure that is quick to assemble and disassemble and easy to maintain. Background Technology
[0002] The corridor keel structure, as a key architectural system supporting the corridor ceiling and concealing pipelines in building engineering, is mainly composed of fixed keels and movable keels, forming a stable frame structure through snap-fit or riveting techniques. Fixed keels typically use L-shaped or C-shaped cross-sections and are firmly connected to the building structure using nails or expansion bolts; movable keels are designed with hooks, slots, and other structures to achieve a detachable connection, facilitating the installation of decorative panels and the maintenance of pipelines.
[0003] In the practical application of corridor keel structures, maintenance personnel typically need to use ladders or other lifting equipment to reach high-altitude work positions to meet inspection and maintenance needs. However, these lifting devices are often difficult to store effectively when not in use, resulting in the occupation of valuable space resources and potential safety hazards. The storage and management of lifting equipment becomes a challenge, especially in situations where corridor space is limited.
[0004] When maintenance personnel use ladders or other equipment to enter the interior of the keel structure, they often find it difficult to maintain a stable movement. This instability not only reduces work efficiency but can also increase operational risks. In a high-altitude working environment, even the slightest sway or instability can trigger a serious safety accident. Utility Model Content
[0005] The main purpose of this utility model is to provide a corridor keel structure that is quick to assemble and disassemble and easy to maintain, which can effectively solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A quick-assembly and easy-to-maintain corridor keel structure includes a support frame, a top keel, beams and assemblies, wherein the top keel is mounted on the support frame and the beams are mounted on the top keel via the assemblies;
[0008] The upper side wall of the support frame is equipped with protruding blocks, and multiple protruding blocks in the same row are equipped with slide rails. The upper end of the slide rail is connected to a slide seat through a pulley and moves along the slide rail. Two slide seats are equipped with sliding brackets, and the sliding brackets move within the corridor keel through the slide rail, slide seat and pulley.
[0009] The two sliding brackets are connected with a maintenance ladder through a first connecting piece and the rotation of the maintenance ladder is realized through the first connecting piece. The maintenance ladder is put down for the maintenance of the corridor keel. A connecting hole is opened at the bottom of the maintenance ladder. The connecting hole is connected with a second connecting piece through a connecting head, and the maintenance ladder is installed on the sliding bracket through the second connecting piece.
[0010] As an optional solution of the present application, the beam plates are evenly distributed on the top keel. The top view of the top keel is designed in a "mouth" shape. The middle part of the top keel arches upwards to realize the inclined setting of the beam plates;
[0011] As an optional solution of the present application, the protruding block is welded and fixed on the support frame. The protruding block and the slide rail are fixed by bolts. A concave groove is opened on the pulley. The slide rail is adapted to the pulley. The assembly includes a connecting flange, bolts, nuts and anti-slip washers. The connecting flange is located at the connection of the top keel, the beam plate and the support frame and is fixed through bolts, nuts and anti-slip washers;
[0012] As an optional solution of the present application, the first connecting piece includes a connecting frame, bolts and nuts. The connecting frame is designed in a "U" shape. The U-shaped connecting frame contacts the end of the maintenance ladder and the connection between the connecting frame and the maintenance ladder is realized through two groups of bolts and nuts. The side end of the U-shaped connecting frame inserts a screw rod. The screw rod passes through the connecting frame and the sliding bracket and is fixed through nuts and anti-slip washers. Loosen the nut on the screw rod to realize the adjustment of the maintenance ladder;
[0013] As an optional solution of the present application, the first connecting piece and the second connecting piece have the same structure. The second connecting piece is fixed on the connecting head through two groups of bolts and nuts. The connecting head is designed in a "C" shape. The end of the connecting head is a threaded insertion rod;
[0014] As an optional solution of the present application, the connecting hole is a threaded hole. The threaded insertion rod is inserted into the connecting hole to realize the connection between the maintenance ladder and the connecting head. Cancel the connection between the second connecting piece and the sliding bracket to realize the rotation of the maintenance ladder, and move it through the slide rail to change its position in the corridor keel.
[0015] Compared with the prior art, the present utility model has the following beneficial effects:
[0016] The track movement system realizes the flexible movement of the sliding bracket in the corridor keel through the cooperation of the slide rail, the sliding seat and the pulley. This enables maintenance personnel to easily move the maintenance ladder to the designated position when they need to maintain the corridor keel, greatly improving the maintenance efficiency.
[0017] The maintenance ladder storage system achieves stable installation and flexible rotation of the ladder through the cooperation of connecting holes, connectors, and fittings. This design not only ensures the safety and stability of the maintenance ladder during use, but also allows for convenient storage and securing when not in use, avoiding the occupation of additional space.
[0018] The combined effect of the track-moving system and the maintenance ladder storage system enhances the overall stability and flexibility of the equipment. Through a rational structural design and component coordination, the equipment can achieve flexible movement and rapid positioning of the maintenance ladder while ensuring stability, providing convenience for maintenance personnel. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a front view of the overall structure of this utility model;
[0021] Figure 3 This is a side view of the overall structure of this utility model;
[0022] Figure 4 This is a diagram illustrating the sliding bracket, maintenance ladder, connector, and connector head of this utility model.
[0023] In the diagram: 1. Support frame; 2. Top keel; 3. Beam plate; 4. Assembly component; 5. Protrusion block; 6. Slide rail; 7. Slide seat; 8. Pulley; 9. Sliding bracket; 10. First connector; 11. Inspection ladder; 12. Connecting hole; 13. Connector head; 14. Second connector. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] like Figure 1 - Figure 4 As shown, a corridor joist structure that is quick to assemble and easy to maintain mainly includes a support frame 1, a top joist 2, beams 3, and assembly components 4. The top joist 2 is mounted on the support frame 1, while the beams 3 are mounted on the top joist 2 via the assembly components 4. This design not only makes the structure stable but also allows for easy disassembly and assembly during maintenance, improving maintenance efficiency.
[0026] On the upper part of the side wall of the support frame 1, protruding blocks 5 are designed, and slide rails 6 are installed on these protruding blocks 5. The upper end of the slide rail 6 is connected with a sliding seat 7 through a pulley 8, and the sliding seat 7 can move freely along the slide rail 6. A sliding support 9 is installed on the two sliding seats 7, and the sliding support 9 can move flexibly within the corridor keel through the slide rail 6, the sliding seat 7 and the pulley 8, providing convenience for maintenance.
[0027] Two sliding supports 9 are connected with a maintenance ladder 11 through a first connecting member 10, and the rotation of the maintenance ladder 11 is realized through the first connecting member 10. When it is necessary to perform maintenance on the corridor keel, just lower the maintenance ladder 11, and the operation can be easily carried out. A connecting hole 12 is opened at the bottom of the maintenance ladder 11, and the connecting hole 12 is connected with a second connecting member 14 through a connecting head 13, and the maintenance ladder 11 is installed on the sliding support 9 through the second connecting member 14, ensuring the stability and safety of the maintenance ladder 11.
[0028] The beam plates 3 are evenly distributed on the top keel 2. The top view of the top keel 2 is designed in a "mouth" shape, and the middle part of the top keel 2 arches upward, thus realizing the inclined setting of the beam plates 3, making the corridor keel structure more stable and beautiful.
[0029] The protruding blocks 5 are fixed on the support frame 1 by welding, and the protruding blocks 5 and the slide rails 6 are fixed by bolts, ensuring the firmness of the structure. A concave groove is opened on the pulley 8, and the slide rail 6 is adapted to the pulley 8, enabling the sliding support 9 to move smoothly on the slide rail 6. The assembly 4 includes a connecting flange, bolts, nuts and anti-slip washers. The connecting flange is located at the connection of the top keel 2, the beam plates 3 and the support frame 1, and is fixed through bolts, nuts and anti-slip washers, ensuring the firmness and anti-slip of the connection.
[0030] The first connecting member 10 includes a connecting frame, bolts and nuts. The connecting frame is designed in a "U" shape. The U-shaped connecting frame contacts the end of the maintenance ladder 11, and the connection between the connecting frame and the maintenance ladder 11 is realized through two groups of bolts and nuts. The side end of the U-shaped connecting frame inserts a screw rod, which passes through the connecting frame and the sliding support 9, and is fixed through nuts and anti-slip washers. Loosening the nut on this screw rod can realize the adjustment of the maintenance ladder 11, making the maintenance ladder 11 more flexible during use.
[0031] The structures of the first connecting member 10 and the second connecting member 14 are the same. The second connecting member 14 is fixed on the connecting head 13 through two groups of bolts and nuts. The connecting head 13 is designed in a "C" shape, and the end of the connecting head 13 is a threaded insertion rod. The connecting hole 12 is a threaded hole, and the threaded insertion rod is inserted into the connecting hole 12 to realize the connection between the maintenance ladder 11 and the connecting head 13. Canceling the connection between the second connecting member 14 and the sliding support 9 realizes the rotation of the maintenance ladder 11, and moving it through the slide rail 6 enables it to change its position within the corridor keel, providing convenience and flexibility for the maintenance work.
[0032] The protruding block 5 is fixed to the upper side wall of the support frame 1 by welding. The slide rail 6 is fixed to the protruding block 5 by bolts. The slide seat 7 is installed on the slide rail 6, ensuring it can move freely. The pulley 8 is fixed to the slide seat 7 by bolts, ensuring the sliding bracket 9 can move smoothly. The two sliding brackets 9 are connected by the first connector 10, ensuring they can move flexibly. The maintenance ladder 11 is connected to the sliding bracket 9 through the connecting hole 12 and the connector 13. The maintenance ladder 11 is fixed to the sliding bracket 9 by bolts and nuts using the second connector 14. The top keel 2 is installed on the support frame 1, ensuring it is stable. The beam plate 3 is installed on the top keel 2 by the assembly part 4, ensuring it is evenly distributed and stable. The connection between the top keel 2, beam plate 3 and support frame 1 is fixed using connecting flanges, bolts, nuts and anti-slip washers, ensuring the connection is stable and anti-slip.
[0033] Loosen the nut on the second connector 14 and lower the maintenance ladder 11. Loosen the nut on the first connector 10 and move the sliding bracket 9 and maintenance ladder 11 to the position requiring maintenance. Ensure the sliding bracket 9 moves flexibly within the corridor frame using the cooperation of the slide rail 6 and pulley 8. After confirming the maintenance ladder 11 is in the correct position, retighten the nuts on the first connector 10 and the second connector 14 to ensure the stability and safety of the maintenance ladder 11. Perform the necessary maintenance work on the maintenance ladder 11, utilizing its flexibility and stable support. After completing the maintenance work, loosen the nut on the second connector 14 and retract the maintenance ladder 11. Ensure all components are returned to their initial positions, ready for the next use.
[0034] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0035] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A quick-assembly and easy-to-maintain corridor keel structure, comprising a support frame (1), a top keel (2), beams (3), and assemblies (4), wherein the top keel (2) is mounted on the support frame (1), and the beams (3) are mounted on the top keel (2) via the assemblies (4), characterized in that: On the upper part of the side wall of the support frame (1), a protruding block (5) is installed. A slide rail (6) is installed on multiple protruding blocks (5) in the same row. The upper end of the slide rail (6) is connected to a sliding seat (7) through a pulley (8) and moves along the slide rail (6). A sliding support (9) is installed on two sliding seats (7). The sliding support (9) moves within the corridor keel through the slide rail (6), the sliding seat (7), and the pulley (8). Two of the sliding supports (9) are connected to an inspection ladder (11) through a first connecting piece (10), and the rotation of the inspection ladder (11) is achieved through the first connecting piece (10). The inspection ladder (11) is lowered for the inspection of the corridor keel. A connecting hole (12) is opened at the bottom of the inspection ladder (11). The connecting hole (12) is connected to a second connecting piece (14) through a connecting head (13), and the inspection ladder (11) is installed on the sliding support (9) through the second connecting piece (14).
2. The corridor keel structure for quick assembly and disassembly and easy maintenance according to claim 1, characterized in that: The beam plates (3) are equidistantly distributed on the top keel (2). The top view of the top keel (2) is designed in a "mouth" shape. The middle part of the top keel (2) arches upward to achieve the inclined setting of the beam plates (3).
3. The corridor keel structure for quick assembly and disassembly and easy maintenance according to claim 2, characterized in that: The protruding block (5) is welded and fixed to the support frame (1). The protruding block (5) and the slide rail (6) are fixed by bolts. A concave groove is opened on the pulley (8), and the slide rail (6) is adapted to the pulley (8). The assembly (4) includes a connecting flange, bolts, nuts, and anti-slip washers. The connecting flange is located at the connection of the top keel (2), the beam plate (3), and the support frame (1), and is fixed through bolts, nuts, and anti-slip washers.
4. The corridor keel structure for quick assembly and easy maintenance according to claim 3, characterized in that: The first connecting piece (10) includes a connecting frame, bolts, and nuts. The connecting frame is designed in a "U" shape. The end of the U-shaped connecting frame contacts the end of the inspection ladder (11), and the fixation of the connecting frame and the inspection ladder (11) is achieved through two groups of bolts and nuts. The side end of the U-shaped connecting frame inserts a screw rod, which passes through the connecting frame and the sliding support (9), and is fixed through nuts and anti-slip washers. Loosening the nut on this screw rod enables the adjustment of the inspection ladder (11).
5. A corridor keel structure for quick assembly and disassembly and easy maintenance according to claim 4, characterized in that: The structures of the first connecting piece (10) and the second connecting piece (14) are the same. The second connecting piece (14) is fixed to the connecting head (13) through two groups of bolts and nuts. The connecting head (13) is designed in a "C" shape, and the end of the connecting head (13) is a threaded insertion rod.
6. A corridor keel structure for quick assembly and easy maintenance according to claim 5, characterized in that: The connecting hole (12) is a threaded hole. The threaded insertion rod is inserted into the connecting hole (12) to achieve the connection of the inspection ladder (11) and the connecting head (13). The connection between the second connecting piece (14) and the sliding support (9) is cancelled to achieve the rotation of the inspection ladder (11), and its position is changed within the corridor keel by moving through the slide rail (6).