Prefabricating die for composite floor slab
By introducing a scraping device and a compacting roller into the precast mold for composite floor slabs, the problem of uneven concrete surface was solved, construction efficiency and concrete quality were improved, and construction costs were reduced.
Patent Information
- Application Number
- CN202422214841.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-09-10
AI Technical Summary
After pouring concrete in existing precast molds for composite floor slabs, the concrete surface tends to be uneven, requiring additional equipment to smooth it out, increasing construction costs and reducing efficiency.
A prefabricated mold for composite floor slabs was designed, which included a scraping device and a compacting roller. The scraping plate and the compacting roller were used to scrape and compact the concrete to ensure the flatness and uniformity of the concrete surface. The steel bar placement groove was sealed with an adjusting plate to prevent concrete overflow.
The flatness and uniformity of the concrete surface are achieved, honeycomb defects are reduced, the compressive properties of the concrete are improved, and construction waste and costs are reduced.
Smart Images

Figure CN223314173U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of prefabricated composite floor slab preparation, in particular to a prefabricated mold for a composite floor slab. Background Art
[0002] Prefabricated molds for composite floor slabs play a vital role in building construction. They are mainly used to make prefabricated components for composite floor slabs. Through the consistent use of molds, the quality of each floor slab can be guaranteed to be stable, the quality fluctuations caused by human factors can be reduced, and the quality of the overall construction project can be improved.
[0003] In the prior art, side molds are usually installed on a workbench, and U-shaped steel bar holes for placing steel bars are arranged at intervals on the side molds so that workers can pour concrete to prefabricate composite floor slabs. However, in this method, the workbench is not provided with a device for leveling the concrete. After the concrete is poured, the concrete above the mold body may be uneven, and the workers need to use additional equipment to smooth the concrete, which increases the construction cost and reduces work efficiency. Utility Model Content
[0004] In view of this, the utility model addresses the deficiencies of the existing technology and provides a prefabricated mold for composite floor slabs, which can not only prefabricate the composite floor slabs through the set mold body, but also can use the scraping device to scrape and compact the concrete poured inside the mold body, thereby ensuring the flatness and uniformity of the concrete surface and improving the overall quality of the prefabricated composite floor slabs.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a prefabricated mold for composite floor slabs, including a base plate, a mold body is provided at the upper end of the base plate, a number of supporting feet are provided between the mold body and the base plate, the supporting feet are fixed to the bottom corners of the mold body by screws, steel bar placement grooves are provided at both ends of the mold body, and a scraping device for scraping the concrete is provided on the base plate.
[0006] As a further improvement of the present invention, the scraping device includes grooves arranged at the front and rear ends of the mold, a threaded rod is arranged inside the rear end groove, a motor is arranged at the right end of the rear groove, the output end of the motor is connected to the threaded rod through a coupling, a slider 1 is threadedly connected to the threaded rod, a slide rod is arranged inside the front end groove, a slide rod is slidably arranged on the slide rod, the upper ends of slide rod 1 and slide rod 2 are jointly connected to a support plate, a scraping plate is arranged on the left side of the support plate, a material blocking plate is arranged at the front and rear ends of the scraping plate, and a flattening component is arranged on the right side of the support plate.
[0007] As a further improvement of the present invention, the flattening assembly includes a rotating column rotatably arranged at the lower end of the support plate, a compacting roller adapted to the mold body is arranged in the middle of the rotating column, a driving member for driving the rotating column to rotate is arranged at the upper end of the rear groove, the driving member includes a gear arranged at the rear end of the rotating column, and teeth meshing with the gear are arranged at the upper end of the rear groove.
[0008] As a further improvement of the present invention, adjustment plates are provided at both ends of the left and right sides of the mold body, and a number of shaft seats and fixing grooves are provided on the adjustment plates. The shaft seats are installed at the bottom of the adjustment plates, and the fixing grooves correspond to the positions of the steel bar placement grooves. Threaded sleeves and guide sleeves are provided on the lower sides of the left and right ends of the mold body, and adjustment rods are installed on the shaft seats at the front and rear ends of the adjustment plate, and the inner ends of the adjustment rods are nested in the interior of the guide sleeves.
[0009] As a further improvement of the present invention, an adjusting screw is threadedly connected to the shaft seat in the middle of the adjusting plate, and the inner end of the adjusting screw is threadedly connected to the threaded sleeve through a thread.
[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0011] First, by setting up a scraper plate, starting the motor, driving the threaded rod to rotate, the rotation of the threaded rod drives slider one to move along the groove, and then the support plate moves with the assistance of slider two. The movement of the support plate drives the scraper plate to move, and then the concrete poured on the mold is smoothed. Smoothing can ensure that the concrete surface is smooth and uniform, and reduce defects such as honeycomb surface.
[0012] Secondly, by setting up a compaction roller, during the movement of the support plate, the rotating column drives the gear to move with the support plate, and the gear rotates under the action of the teeth, and then the gear drives the rotating column to rotate, and the rotating column drives the compaction roller to rotate, so as to compact the flattened concrete. The compaction process can make the aggregate distribution inside the concrete more dense, reduce the porosity, thereby improving the compressive performance of the concrete and extending its service life.
[0013] Third, by setting an adjustment plate, the reinforcing steel bars are placed inside the steel bar placement groove, and then the adjustment screw is screwed to drive the adjustment plate to slide inward along the direction of the guide shaft sleeve to seal the steel bar placement groove and prevent concrete from overflowing from the inside of the steel bar placement groove.
[0014] Fourthly, both ends of the scraper plate are provided with baffle plates, which can prevent the concrete scraped by the scraper plate from falling from the front and back ends of the scraper plate, thereby reducing waste. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0016] Figure 1 It is a structural diagram of the utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the mold body, adjustment sleeve, guide sleeve, and adjustment rod of the utility model;
[0018] Figure 3 This is a schematic structural diagram of the scraping device of the present utility model;
[0019] Figure 4 It is a schematic diagram of the top structure of the utility model.
[0020] In the figure: 101, base plate; 102, mold body; 103, support foot; 104, steel bar placement groove; 201, groove; 202, threaded rod; 203, motor; 204, slider 1; 205, slide rod; 206, slider 2; 207, support plate; 208, scraper plate; 209, material baffle; 210, rotating column; 211, compacting roller; 212, gear; 213, teeth; 301, adjustment plate; 302, shaft seat; 303, fixing groove; 304, threaded sleeve; 305, guide sleeve; 306, adjustment rod; 307, adjustment screw. DETAILED DESCRIPTION
[0021] To better understand the present invention, the following examples further illustrate the present invention. However, the present invention is not limited to the following examples. In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be practiced without one or more of these details.
[0022] like Figure 1 、 2 As shown in Figure 3, the prefabricated mold for composite floor slabs includes a base plate 101, which is characterized in that a mold body 102 is provided at the upper end of the base plate 101, a plurality of supporting legs 103 are provided between the mold body 102 and the base plate 101, the supporting legs 103 are fixed to the bottom corners of the mold body 102 by screws, steel bar placement grooves 104 are provided at the left and right ends of the mold body 102, and a leveling device for leveling the concrete is provided on the base plate 101.
[0023] like Figure 1 、 3As shown in 4, the scraping device includes grooves 201 arranged at the front and rear ends of the mold, a threaded rod 202 is arranged inside the rear end groove 201, a motor 203 is arranged at the right end of the groove 201 on the rear side, the output end of the motor 203 is connected to the threaded rod 202 through a coupling, a slider 1 204 is threadedly connected to the threaded rod 202, a slide bar 205 is arranged inside the front end groove 201, a slider 206 is slidably arranged on the slide bar 205, and the upper ends of the slider 1 204 and the slider 2 206 are commonly connected to a support plate 207, a scraping plate 208 is arranged on the left side of the support plate 207, and a material baffle 209 is arranged at the front and rear ends of the scraping plate 208. By setting the material baffle 209, the concrete scraped by the scraping plate 208 can be prevented from falling from the front and rear ends of the scraping plate 208, thereby reducing waste. A flattening component is arranged on the right side of the support plate 207.
[0024] like Figure 1 、 3 As shown, the flattening assembly includes a rotating column 210 rotatably arranged at the lower end of the support plate 207, a compacting roller 211 adapted to the mold body 102 is arranged in the middle of the rotating column 210, and a driving member for driving the rotating column 210 to rotate is arranged at the upper end of the rear groove 201, and the driving member includes a gear 212 arranged at the rear end of the rotating column 210, and a tooth 213 meshing with the gear 212 is arranged at the upper end of the rear groove 201.
[0025] like Figure 1 、 2 As shown, adjustment plates 301 are provided at both ends of the left and right sides of the mold body 102, and several shaft seats 302 and fixing grooves 303 are provided on the adjustment plate 301. The shaft seats 302 are installed at the bottom of the adjustment plate 301, and the fixing grooves 303 correspond to the positions of the steel bar placement grooves 104. Threaded sleeves 304 and guide sleeves 305 are provided on the lower sides of the left and right ends of the mold body 102. Adjustment rods 306 are installed on the shaft seats 302 at the front and rear ends of the adjustment plate 301, and the inner ends of the adjustment rods 306 are nested in the interior of the guide sleeves 305.
[0026] like Figure 1 、 2 As shown, the shaft seat 302 in the middle of the adjusting plate 301 is threadedly connected with an adjusting screw 307 , and the inner end of the adjusting screw 307 is threadedly connected to the threaded sleeve 304 through a thread.
[0027] When in use, the reinforcing steel bar is placed inside the steel bar placement groove 104, and then the adjusting screw 307 is screwed to drive the adjusting plate 301 to slide inward along the guide shaft sleeve 305 to seal the steel bar placement groove 104 to prevent concrete from overflowing from the inside of the steel bar placement groove 104. Then, concrete is poured. After the pouring is completed, the motor 203 is started to drive the threaded rod 202 to rotate. The rotation of the threaded rod 202 drives the slider 1 204 to move along the groove 201, and then the support plate 207 moves under the auxiliary action of the slider 206. The movement of the support plate 207 drives the scraper plate 208 to move. , and then smooth the concrete poured on the mold body 102. During the movement of the support plate 207, the rotating column 210 drives the gear 212 to move with the support plate 207. The gear 212 rotates under the action of the teeth 213, and then the gear 212 drives the rotating column 210 to rotate. The rotating column 210 drives the compacting roller 211 to rotate, so as to compact the flattened concrete. Smoothing can ensure that the surface of the concrete is smooth and uniform, and reduce defects such as honeycomb surface. The compaction process can make the aggregate distribution inside the concrete more dense and reduce the porosity, thereby improving the compressive performance of the concrete and extending its service life.
[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.
Claims
1. A prefabricated mould for a composite floor slab, comprising a bottom plate (101), characterized in that: A mold body (102) is provided at the upper end of the bottom plate (101), and a plurality of supporting legs (103) are provided between the mold body (102) and the bottom plate (101). The supporting legs (103) are fixed to the bottom corners of the mold body (102) by screws. Steel bar placement grooves (104) are provided at both left and right ends of the mold body (102). A scraping device for scraping concrete is provided on the bottom plate (101), and the scraping device includes grooves (201) provided at the front and rear ends of the mold, a threaded rod (202) is provided inside the rear end groove (201), and an electric rod (203) is provided at the right end of the rear side groove (201). The motor (203) is connected to the threaded rod (202) through a coupling, the threaded rod (202) is threadedly connected with a slider (204), a slider (205) is provided inside the front end groove (201), a slider (206) is slidably provided on the slider (205), the upper ends of the slider (204) and the slider (206) are commonly connected to a support plate (207), a scraping plate (208) is provided on the left side of the support plate (207), and a material blocking plate (209) is provided at both the front and rear ends of the scraping plate (208), and a flattening component is provided on the right side of the support plate (207).
2. The prefabricated mold for composite floor slabs according to claim 1, wherein: The flattening assembly includes a rotating column (210) rotatably arranged at the lower end of the support plate (207), a compacting roller (211) adapted to the mold body (102) is arranged in the middle of the rotating column (210), and a driving member for driving the rotating column (210) to rotate is arranged at the upper end of the rear groove (201).
3. The prefabricated mold for composite floor slabs according to claim 2, wherein: The driving member comprises a gear (212) arranged at the rear end of the rotating column (210), and teeth (213) meshing with the gear (212) are arranged at the upper end of the groove (201) at the rear side.
4. The prefabricated mold for composite floor slabs according to claim 1, wherein: The left and right ends of the mold body (102) are both provided with adjustment plates (301), and the adjustment plates (301) are provided with a plurality of shaft seats (302) and fixing grooves (303). The shaft seats (302) are installed at the bottom of the adjustment plates (301), and the fixing grooves (303) correspond to the positions of the steel bar placement grooves (104).
5. The prefabricated mold for composite floor slabs according to claim 4, characterized in that: Threaded sleeves (304) and guide sleeves (305) are provided on the lower sides of the left and right ends of the mold body (102), and adjusting rods (306) are installed on the shaft seats (302) at the front and rear ends of the adjusting plate (301), and the inner ends of the adjusting rods (306) are embedded in the interior of the guide sleeves (305).
6. The prefabricated mold for composite floor slabs according to claim 5, characterized in that: An adjusting screw (307) is threadedly connected to the shaft seat (302) in the middle of the adjusting plate (301), and the inner end of the adjusting screw (307) is threadedly connected to the threaded sleeve (304) through a thread.