Floor expansion joint construction device
By using a C-shaped fixing frame and auxiliary frame structure, and by using air supply equipment to push the sliding plate to correct the dent in the steel plate, the problem of local dent in the steel plate at the floor expansion joint is solved, ensuring stable passage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MINMETALS 23RD METALLURGICAL CONSTR GRP SECOND ENG CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-08-04
AI Technical Summary
In existing technologies, the installation method of floor expansion joints can easily lead to local dents in the steel plate, especially when heavy objects pass over it, affecting the stable passage of workers or robots.
The system adopts a C-shaped fixed frame and a long strip-shaped auxiliary frame structure. The auxiliary frame is equipped with a sliding plate and through holes. By inflating the auxiliary frame with an air supply device, the sliding plate is pushed to slide against the floor wall, thus correcting the dent of the steel plate.
It effectively reduces local pressure on the steel plate, prevents dents, and ensures stable passage for workers or robots at expansion joints.
Smart Images
Figure CN224591600U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of expansion joint installation technology, specifically to a construction device for floor expansion joints. Background Technology
[0002] During the construction of a building, steel plates are used to fill and support the expansion joints between two adjacent floor slabs in order to achieve a stable connection between the two floor slabs.
[0003] Currently, the installation of expansion joints is relatively simple. Typically, multiple angle steel bars are evenly spaced between two floor slabs, and a steel plate compatible with the expansion joint is laid on top of the angle steel bars and then fixed to them, ensuring the steel plate is stably positioned on the expansion joint. However, this installation method often results in a large gap between the angle steel bars. When a heavy object (such as a AGV robot carrying heavy goods) passes over the steel plate for an extended period, it may excessively compress the portion of the steel plate between the angle steel bars, leading to localized dents in the steel plate. This adversely affects subsequent movement of workers or robots through the expansion joint.
[0004] Therefore, this utility model proposes a construction device for floor expansion joints. Utility Model Content
[0005] The purpose of this utility model is to provide a floor expansion joint construction device to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: a floor expansion joint construction device, including a floor slab one and a floor slab two, with a steel plate between the floor slab one and the floor slab two, and multiple fixing frames between the floor slab one and the floor slab two. The fixing frames are generally C-shaped, and both ends of the fixing frames are fixedly connected to the floor slab one and the floor slab two respectively. An auxiliary frame is provided above the fixing frames. The auxiliary frame is long and narrow and is fixedly connected to each fixing frame.
[0006] Preferably, the auxiliary frame has a sliding plate 1 and a sliding plate 2 inside, the upper surfaces of the sliding plate 1 and the sliding plate 2 overlap with the upper surface of the auxiliary frame, and a through hole is provided between the sliding plate 1 and the sliding plate 2. The through hole passes through the steel plate and is connected to the external air supply equipment.
[0007] Preferably, an electric valve is provided inside the through hole of the auxiliary frame, and the electric valve is closed under normal conditions.
[0008] Preferably, the thrust of air into the auxiliary frame pushes the ends of slide plate one and slide plate two to abut against the walls of floor slab one and floor slab two, respectively.
[0009] Preferably, the fixing frame includes two support parts, and the two ends of the support parts form a triangle with the two bottom surfaces of the fixing frame.
[0010] Preferably, the auxiliary frame is located at the center of the fixed frame and is perpendicular to the fixed frame.
[0011] This utility model has at least the following beneficial effects:
[0012] In this utility model:
[0013] By connecting multiple fixed frames with auxiliary frames, when subjected to compressive force from above the steel plate, the fixed frames and auxiliary frames form a unified stress-bearing area. This effectively reduces localized pressure on the steel plate, minimizing the possibility of dents and making it more stable for workers or robots to walk across the expansion joint. Simultaneously, the thrust generated by inflating the auxiliary frames propels slide plates one and two within the frame. The end areas of slide plates one and two then perform compressive correction on any dents in the steel plate, restoring its bottom surface to a flat plane and returning it to a usable condition, ensuring stability for personnel walking across the expansion joint. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of this utility model from another angle;
[0016] Figure 3 This utility model Figure 2 Enlarged view of the structure of region A in the middle;
[0017] Figure 4 This is a sectional view of the auxiliary frame structure in this utility model;
[0018] Figure 5 This utility model Figure 4 Enlarged view of the structure of region B in the middle.
[0019] In the diagram: 1-Floor slab one; 2-Floor slab two; 3-Steel plate; 4-Fixing frame; 5-Auxiliary frame; 6-Slide plate one; 7-Slide plate two; 8-Through hole; 9-Electrical valve; 10-Support part. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-5This utility model provides a technical solution: a floor expansion joint construction device, including a floor slab 1 and a floor slab 2, with a steel plate 3 between the floor slab 1 and the floor slab 2, and multiple fixing frames 4 between the floor slab 1 and the floor slab 2. The fixing frames 4 are C-shaped in general, and both ends of the fixing frames 4 are fixedly connected to the floor slab 1 and the floor slab 2 by expansion bolts. The steel plate 3 is fixedly connected to the fixing frames 4 by bolts. The fixing frames 4 include two support parts 10, and the two ends of the support parts 10 and the two bottom surfaces of the fixing frames 4 form a triangle. This shape can disperse the pressure to the walls of the floor slab 1 and the floor slab 2 when the steel plate 3 is subjected to heavy loads, thereby improving the stability of the support.
[0022] An auxiliary frame 5 is provided above the fixed frame 4. The auxiliary frame 5 is long and narrow and is fixedly connected to each fixed frame 4 by bolts. The auxiliary frame 5 is located at the center of the fixed frame 4 and is perpendicular to the fixed frame 4. The auxiliary frame 5 located at the center of the fixed frame 4 can connect multiple fixed frames 4. When subjected to the compressive force above the steel plate 3, the fixed frame 4 and the auxiliary frame 5 form a whole stress area, which can effectively reduce the local pressure on the steel plate 3, reduce the possibility of the steel plate 3 denting, and make it more stable for workers or robots to walk through the expansion joint.
[0023] Furthermore, the auxiliary frame 5 is equipped with a sliding plate 6 and a sliding plate 7 inside. Both sliding plates 6 and 7 are slidably connected to the auxiliary frame 5. The upper surfaces of sliding plates 6 and 7 overlap with the upper surface of the auxiliary frame 5. A through hole 8 is provided between sliding plates 6 and 7. The through hole 8 passes through the steel plate 3 and is connected to the external air supply equipment. An electric valve 9 is provided inside the through hole 8 of the auxiliary frame 5 and is fixedly connected to it. Under normal conditions, the electric valve 9 is closed to prevent dust or gravel from falling into the interior of the auxiliary frame 5 and affecting the sliding of sliding plates 6 and 7. The electric valve 9 can be manually controlled to open or close.
[0024] The working principle of steel plate 3 dent correction:
[0025] When the air supply equipment inflates the auxiliary frame 5, the electric valve 9 opens, allowing air to enter between slide plate 6 and slide plate 7 through the through hole 8. The thrust generated by inflating the auxiliary frame 5 pushes slide plate 6 and slide plate 7 to slide inside the auxiliary frame 5 until their ends abut against the walls of floor slab 1 and floor slab 2, respectively. During this process, the upper surfaces of slide plate 6 and slide plate 7 remain in contact with the bottom surface of steel plate 3. Therefore, the end areas of slide plate 6 and slide plate 7 will compress and correct any localized depressions in steel plate 3, restoring the bottom surface of steel plate 3 to a flat plane and returning it to a usable condition, ensuring stability for personnel walking on the expansion joint.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A floor expansion joint construction device, comprising floor slab one (1) and floor slab two (2), wherein a steel plate (3) is provided between floor slab one (1) and floor slab two (2), characterized in that: Multiple fixed frames (4) are provided between floor slab 1 (1) and floor slab 2 (2). The fixed frames (4) are C-shaped in general, and the two ends of the fixed frames (4) are fixedly connected to floor slab 1 (1) and floor slab 2 (2) respectively. An auxiliary frame (5) is provided above the fixed frame (4). The auxiliary frame (5) is long and is fixedly connected to each fixed frame (4).
2. The floor expansion joint construction apparatus of claim 1, wherein: The auxiliary frame (5) is provided with a sliding plate 1 (6) and a sliding plate 2 (7) inside. The upper surfaces of the sliding plate 1 (6) and the sliding plate 2 (7) overlap with the upper surface of the auxiliary frame (5). A through hole (8) is provided between the sliding plate 1 (6) and the sliding plate 2 (7). The through hole (8) passes through the steel plate (3) and is connected to the external air supply equipment.
3. The floor expansion joint construction apparatus of claim 2, wherein: An electric valve (9) is installed inside the through hole (8) of the auxiliary frame (5). Under normal conditions, the electric valve (9) is closed.
4. The floor expansion joint construction apparatus of claim 3, wherein: The thrust of air into the auxiliary frame (5) pushes the ends of slide plate 1 (6) and slide plate 2 (7) to resist the walls of floor slab 1 (1) and floor slab 2 (2), respectively.
5. The floor expansion joint construction apparatus of claim 1, wherein: The fixing frame (4) includes two support parts (10), and the two ends of the support parts (10) form a triangle with the two bottom surfaces of the fixing frame (4).
6. The floor expansion joint construction apparatus of claim 1, wherein: The auxiliary frame (5) is located at the center of the fixed frame (4) and is perpendicular to the fixed frame (4).