Groove type mold for preparing concrete slab from residual concrete and waste steel bars
By designing trough molds at the construction site and directly pouring concrete slabs with residual concrete and scrap steel bars, the problem of difficulty in using residual concrete is solved, and efficient utilization of resources and the strength of concrete slabs are achieved.
Patent Information
- Application Number
- CN202421580731.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-07-05
AI Technical Summary
During the construction process, the remaining concrete is difficult to effectively utilize, resulting in waste of resources, and loses plasticity after initial condensation, making it difficult to reuse.
A groove mold is designed, including trapezoidal grooves, movable partitions, stone filter mesh and guide hoppers, for direct pouring concrete slabs at the construction site, using residual concrete and scrap steel bars.
The direct preparation of concrete slabs at the construction site is realized, which avoids secondary transportation of residual concrete, improves resource utilization, and strengthens the strength of concrete slabs through mesh.
Smart Images
Figure CN222886130U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete pouring, in particular to a trough-type mold for preparing concrete slabs from surplus concrete and waste steel bars. Background Art
[0002] During the construction process, when pouring mass concrete, there is generally a large surplus in the supply of commercial concrete. If it is directly treated as waste, it will cause a large waste of resources.
[0003] Therefore, in recent years, how to deal with the surplus concrete raw materials after pouring has become a hot issue that engineers focus on when formulating green construction plans. Since the initial setting time of concrete is generally not too long and it is impossible to prepare components after losing plasticity, it is difficult to transport it to a designated location for reuse or other purposes.
[0004] In view of the deficiencies of the prior art, it is urgent to design a device for recycling surplus commercial concrete and waste steel bars at the construction site. Summary of the Utility Model
[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a trough-type mold for preparing concrete slabs from surplus concrete and waste steel bars.
[0006] This trough-type mold for preparing concrete slabs from surplus concrete and waste steel bars includes: a trapezoidal trough, a movable partition board, a stone filtering net, and a feeding hopper. A trapezoidal trough is excavated on the ground, and a mold is placed at the bottom of the trapezoidal trough;
[0007] Several movable partition boards are inserted and separated along the length direction of the trapezoidal trough in the mold. The stone filtering net covers the top of the trapezoidal trough, and the feeding hopper is arranged on one side of the top of the trapezoidal trough; The surplus concrete at the construction site is poured between the movable partition boards to form a concrete slab.
[0008] Preferably, the stone filtering net includes a weight block and a nylon filter net. The nylon filter net is laid on the top of the trapezoidal mold, and the laying range of the nylon filter net is larger than the area of the top of the trapezoidal mold. The weight block is arranged at the edge of the nylon filter net outside the trapezoidal mold.
[0009] Preferably, the mold includes a side formwork and a bottom formwork. The bottom surface of the bottom formwork is attached to the bottom of the trapezoidal trough, the edge of the bottom formwork is connected to the side formwork, and the side formwork is attached to the inner wall of the trapezoidal trough; The height of the side formwork is lower than the depth of the trapezoidal trough, the height of the movable partition board is lower than the height of the side formwork, and the height of the movable partition board is greater than the thickness of the concrete slab.
[0010] Preferably, a baffle is arranged on one side of the top of the trapezoidal mold opposite to the feeding hopper.
[0011] Preferably, the top of the trapezoidal trough is covered with a temporary cover plate.
[0012] Preferably, demoulding hooks are embedded in the upper surface of the concrete slab, and a wire mesh is provided in the concrete slab. Both the wire mesh and the demoulding hooks are prepared from the remaining steel bars at the construction site.
[0013] The beneficial effects of the present utility model are as follows:
[0014] 1) By excavating a trapezoidal groove at the construction site to install the mold, the present utility model can directly prepare the concrete slab at the construction site, avoiding the secondary transportation of the remaining concrete. The prepared concrete slab can be directly used as a non-load-bearing member or used as a structural member after quality inspection, realizing the effective utilization of the remaining steel bars and concrete at the construction site, and helping to reduce costs and increase efficiency in engineering projects.
[0015] 2) The wire mesh and demoulding hooks prepared from the remaining steel bars at the construction site are used in the present utility model. The wire mesh effectively strengthens the strength of the concrete slab, and the demoulding hooks are embedded in the upper surface of the concrete slab, facilitating the demoulding after the concrete slab is poured.
[0016] 3) A filter stone net is arranged at the top of the trapezoidal groove in the present utility model. The mesh size of the nylon filter net is set according to the slab thickness, which can filter out the oversized aggregates in the remaining concrete to improve the quality of the precast slab. Description of the Drawings
[0017] Figure 1 is the top view of the trapezoidal groove in the present utility model;
[0018] Figure 2 is Figure 1 the A-A cross-sectional view in
[0019] Figure 3 is the structural schematic diagram after the mold is concretely poured;
[0020] Figure 4 is Figure 3 the schematic diagram of the demoulding hook in
[0021] Description of the reference numerals: trapezoidal groove 1, movable partition plate 2, filter stone net 3, material guiding hopper 4, material blocking plate 5, temporary cover plate 6, demoulding hook 7, side formwork 11, bottom formwork 12, counterweight 31, nylon filter net 32. Detailed Embodiments
[0022] The present utility model will be further described below in conjunction with the embodiments. The description of the following embodiments is only for helping to understand the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.
[0023] As an embodiment, as Figures 1 to 4As shown, the trough mold for preparing concrete slabs with residual concrete and waste steel bars comprises: a trapezoidal trough 1, a movable partition plate 2, a filter stone net 3 and a guide hopper 4. The trapezoidal trough 1 is excavated on the ground, and a mold is placed at the bottom of the trapezoidal trough 1;
[0024] Several movable partitions 2 are inserted into the mold along the length of the trapezoidal groove 1, dividing the mold into several small pieces for pouring small concrete slabs. The mold includes a side template 11 and a bottom template 12. The bottom surface of the bottom template 12 is attached to the bottom of the trapezoidal groove 1. The edge of the bottom template 12 is connected to the side template 11. The side template 11 and the inner wall of the trapezoidal groove 1 are attached; the height of the side template 11 is lower than the depth of the trapezoidal groove 1, and the height of the movable partition 2 is lower than the height of the side template 11. The height of the movable partition 2 is greater than the thickness of the concrete slab.
[0025] The stone filter 3 covers the top of the trapezoidal trough 1. The stone filter 3 includes a weight block 31 and a nylon filter 32. The nylon filter 32 is laid on the top of the trapezoidal mold 1 to filter out oversized aggregates in the commercial concrete to improve the quality of the precast board. The mesh size of the nylon filter 32 is set according to the board thickness; and the laying range of the nylon filter 32 is larger than the area of the top of the trapezoidal mold 1. The weight block 31 is set at the edge of the nylon filter 32 outside the trapezoidal mold 1.
[0026] The guide hopper 4 is arranged on one side of the top of the trapezoidal trough 1, and can directly receive the commercial concrete dumped by the tank truck without pumping; a blocking plate 5 is arranged on the side of the top of the trapezoidal mold 1 opposite to the guide hopper 4, and the blocking plate 5 is arranged on the weight block 31, which can block the commercial concrete sliding down from the guide hopper 4 and make it fall into the trapezoidal trough 1 through the filter stone net 3, so as to avoid the overflow and spillage of raw materials.
[0027] The remaining concrete at the construction site is poured between the movable partition plates 2 to form a concrete slab. A demoulding hook 7 is pre-embedded on the upper surface of the concrete slab; the demoulding hook 7 is prepared from the remaining steel bars at the construction site. When there are many scrap steel bars, they can be tied into a mesh and placed in a mold to prepare a reinforced concrete slab.
[0028] The top of the trapezoidal groove 1 is covered with a temporary cover 6. The temporary cover 6 can close the trapezoidal groove 1 to prevent external dust and debris from contaminating the concrete slab, and can also keep heat and moisture, thereby improving the quality of concrete maintenance.
[0029] This grooved mold for preparing concrete slabs from the remaining concrete and steel bars at the construction site, when in use, first excavate the trapezoidal groove 1, then install the mold and insert the movable partition plate 2. When there are waste steel bars, the waste steel bars can be tied into a net and pre-arranged in the mold. Then, set the filter stone net 3, the material guiding hopper 4 and the material blocking plate 5 on the trapezoidal groove 1. When there is remaining commercial concrete after the large-volume concrete pouring at the construction site is completed, the remaining part can be poured from the material guiding hopper 4 into the trapezoidal groove 1, vibrate and level the surface of the concrete. After the concrete begins to set, spray water for moisture preservation, cover with the temporary cover plate 6, and carry out curing.
[0030] If it is necessary to set the demoulding hook 7, remove the filter stone net 3 after the concrete pouring is completed, then insert the demoulding hook 7 on the surface of the concrete. After the concrete is cured, open the temporary cover plate 6, and demould the concrete slab by pulling up the demoulding hook 7.
Claims
1. A trough mold for preparing concrete slabs with surplus concrete and waste steel bars, characterized in that: include: Trapezoidal trough, movable partition plate, filter stone screen and guide hopper, a trapezoidal trough is excavated on the ground, and a mold is placed at the bottom of the trapezoidal trough; Several movable partition plates are inserted in the mold along the length direction of the trapezoidal trough, the filter stone net covers the top of the trapezoidal trough, and the guide hopper is set on one side of the top of the trapezoidal trough; the remaining concrete at the construction site is poured between the movable partition plates to form a concrete slab.
2. The trough mold for preparing concrete slabs from leftover concrete and waste steel bars according to claim 1, characterized in that: The filter stone net includes a weight block and a nylon filter screen. The nylon filter screen is laid on the top of the trapezoidal mold, and the laying range of the nylon filter screen is larger than the area of the top of the trapezoidal mold. The weight block is set at the edge of the nylon filter screen outside the trapezoidal mold.
3. The trough mold for preparing concrete slabs from leftover concrete and waste steel bars according to claim 1, characterized in that: The mold includes a side template and a bottom template. The bottom surface of the bottom template is attached to the bottom of the trapezoidal groove. The edge of the bottom template is connected to the side template. The side template and the inner wall of the trapezoidal groove are fitted together. The height of the side template is lower than the depth of the trapezoidal groove. The height of the movable partition plate is lower than the height of the side template. The height of the movable partition plate is greater than the thickness of the concrete slab.
4. The trough mold for preparing concrete slabs from surplus concrete and waste steel bars according to claim 1, characterized in that: A material blocking plate is arranged on one side of the top of the trapezoidal mold opposite to the material guide hopper.
5. The trough mold for preparing concrete slabs from leftover concrete and waste steel bars according to claim 1, characterized in that: The top of the trapezoidal trough is covered with a temporary cover.
6. The trough mold for preparing concrete slabs from leftover concrete and waste steel bars according to claim 1, characterized in that: A demoulding hook is pre-embedded on the upper surface of the concrete slab, and a mesh is arranged inside the concrete slab. The mesh and the demoulding hook are both prepared from the remaining steel bars at the construction site.