Prefabricated bottom plate pipeline pressing groove tool and pressing groove method for steel bar truss concrete composite slab

Abstract

The application provides a pipeline pressing groove tool and a pressing groove method for a prefabricated bottom plate of a steel bar truss concrete composite slab, and the pipeline pressing groove tool can form a pressing groove on the plate surface of the prefabricated bottom plate and can freely adjust the depth of the pressing groove. The plate surface pipeline pressing groove tool comprises an operating handle, a spring, a pressing groove die and a clamping groove. In the production process of the prefabricated bottom plate of the fabricated building steel bar truss concrete composite slab, the pressing groove tool can form a pressing groove on the plate surface of the prefabricated bottom plate under the upper chord steel bar of the truss, so as to increase the clear distance between the upper chord steel bar of the truss and the plate surface of the prefabricated bottom plate, solve the problem that the pipeline is difficult to pass through the truss steel bar, improve the pipeline layout efficiency, improve the construction quality of the composite slab, save the cost, and achieve good economic benefits and social benefits.

Description

Technical Field

[0001] This invention relates to the field of civil engineering, and in particular to a tool and method for grooving pipelines in a precast base slab of a reinforced concrete composite slab. Background Technology

[0002] Adhering to the principles of ecological priority and green development, prefabricated buildings have been actively promoted and applied in recent years to achieve energy conservation and emission reduction. Various regions have formulated corresponding prefabricated building development policies based on their own development characteristics and local conditions. Reinforced concrete composite slabs are one of the most common prefabricated components in prefabricated buildings. When laying equipment pipelines in the post-cast layers of the composite slab, the limited space between the truss reinforcement and the prefabricated base slab often severely affects pipeline installation. To facilitate pipeline installation, methods such as increasing the thickness of the composite slab and the height of the truss reinforcement are often adopted. These methods not only increase construction costs but also affect the building's net height.

[0003] To address the above issues, there is an urgent need for a tool and method for grooving pipelines in precast concrete composite slabs with reinforced steel trusses. This tool and method should meet the development needs of prefabricated buildings and solve the problem of pipelines being difficult to pass through the truss reinforcement, thereby improving pipeline layout efficiency, enhancing the construction quality of composite slabs, saving costs, and achieving good economic and social benefits. Summary of the Invention

[0004] To address the problems existing in current technical solutions, the present invention aims to provide a tool and method for grooving pipelines in precast base slabs with reinforced concrete composite slabs. During the production of precast base slabs, this method facilitates the formation of grooves on the surface of the precast base slab below the upper chord reinforcement of the truss, increasing the clear distance between the upper chord reinforcement and the surface of the precast base slab. This solves the problem of pipelines being difficult to pass through the truss reinforcement, improves pipeline layout efficiency, enhances the construction quality of the composite slab, and saves costs, achieving significant economic and social benefits.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A pipeline grooving tool for a precast concrete composite slab with a reinforced truss structure includes a grooving mold, an operating handle, a spring, and a locking groove. The operating handle has two bent shearing tips, which are hinged together in the middle. A ring is provided at the outer end of each shearing tip, and the other end of each shearing tip is perpendicularly fixed to the grooving mold. Two grooving molds are provided, each with a quarter-circle cross-section. The two grooving molds are respectively fixed to two shearing tips. A locking groove, semi-circular in shape, is provided on the opposite side of each of the two grooving molds. The spring is connected to the end of the shearing tip and the end of the grooving mold that is perpendicularly fixed to it. The grooving mold, operating handle, spring, and locking groove constitute the pipeline grooving tool. The spring clamps and fixes the pipeline grooving tool to the upper chord reinforcement of the truss. The locking groove is positioned at different locations on the grooving mold, thereby freely adjusting the grooving depth of the precast composite slab surface to meet the requirements for pipeline arrangement below the upper chord reinforcement of the truss.

[0007] Preferably, the groove mold is made of rubber, which makes it easy for the upper chord steel bars of the truss to be inserted into the groove.

[0008] Preferably, the groove mold has an arc shape.

[0009] Preferably, the combination of the operating handle and the spring ensures that the grooving mold is firmly fixed on the upper chord steel bar of the truss, preventing the grooving mold from deviating and ensuring the grooving depth and forming quality.

[0010] Preferably, the operating handle is used in combination with a spring, which facilitates demolding after the precast base plate of the composite slab is formed, reducing the damage to the molding groove.

[0011] Preferably, the position and number of card slots are adjustable, making them suitable for grooving at various depths.

[0012] A grooving method for the above-mentioned rebar truss concrete composite slab precast base plate pipeline grooving tool, the grooving forming process includes the following steps:

[0013] (a) First, the grooving mold, operating handle, spring and slot are made into a whole to form a pipeline grooving tool;

[0014] (b) Install the precast base plate mold, steel reinforcement cage and truss reinforcement of the composite slab;

[0015] (c) Fix the pipeline grooving tool to the upper chord steel bar of the truss by operating the handle, spring and slot, so that the pipeline grooving tool is embedded into the precast bottom plate of the composite slab to a certain depth, and adjust the embedding depth by using the slot;

[0016] (d) Pour the precast concrete of the composite slab base plate and vibrate it to make it dense. At this time, the spring is in a clamped state to ensure that the groove mold is firmly fixed on the upper chord steel bar of the truss and to ensure the forming quality of the groove.

[0017] (e) After the concrete strength meets the requirements, the pipeline groove tool is removed by operating the handle, and the precast base plate of the composite slab with pipeline groove of appropriate depth is completed.

[0018] Furthermore, the thickness of the precast composite slab base plate and the arrangement of the reinforcing steel frame are based on the design drawings.

[0019] Furthermore, the depth of the pipeline pressing groove on the surface of the precast composite slab can be freely adjusted through the slot.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. This tool is reusable, environmentally friendly, and economical;

[0022] 2. It can meet the diverse needs of pipeline laying on composite slab surfaces in engineering sites and improve pipeline construction and laying efficiency, among other advantages.

[0023] 3. It can achieve factory production, shorten the production cycle, and adapt to the needs of the development of prefabricated buildings;

[0024] 4. Reduce the thickness of composite slabs and the height of truss reinforcement in areas with dense pipelines to save costs;

[0025] 5. The grooving tool is directly fixed to the truss reinforcement, which is flexible and simple to arrange, easy to operate, and has high production efficiency;

[0026] 6. The development of this tool and method is beneficial to solving the problem of pipelines being difficult to pass through truss reinforcement, improving pipeline layout efficiency, enhancing the construction quality of composite slabs, and achieving good economic and social benefits. Attached Figure Description

[0027] The invention will be further described below with reference to the accompanying drawings.

[0028] Figure 1 This is a schematic diagram of the pipeline grooving tool for the precast bottom plate of the reinforced concrete composite slab of the present invention;

[0029] Figure 2 A schematic diagram of the grooving method for pipeline grooving tools;

[0030] In the figure, 1. Grooving mold, 2. Operating handle, 3. Spring, 4. Slot, 5. Pipeline grooving tool, 6. Precast composite slab base plate mold, 7. Reinforcing steel skeleton, 8. Truss reinforcement, 9. Truss top chord reinforcement, 10. Precast composite slab base plate, 11. Grooving. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figure 1-2 As shown, this embodiment provides a pipeline grooving tool for a precast concrete composite slab with reinforced concrete. The pipeline grooving tool includes a grooving mold 1, an operating handle 2, a spring 3, and a slot 4. The operating handle 2 has two bent shearing handles, which are hinged together in the middle. The outer end of the shearing handle is provided with a ring, and the other end of the shearing handle is fixed perpendicularly to the grooving mold 1. There are two grooving molds 1, each with a quarter-circle arc cross-section. The two grooving molds 1 are respectively fixed on the two shearing handles. The two grooving molds 1 are respectively provided with slots 4 on opposite sides. The slots 4 are semi-circular arc-shaped. The spring 3 is connected to the shearing handle and the end of the grooving mold 1 that is fixed perpendicularly. The grooving mold 1, the operating handle 2, the spring 3, and the slots 4 constitute a pipeline grooving tool 5. The spring 3 clamps and fixes the pipeline grooving tool 5 to the upper chord reinforcement of the truss. The slots 4 are set at different positions of the grooving mold 1, thereby freely adjusting the grooving depth of the precast composite slab surface.

[0033] The depth of the pipeline pressing groove 11 on the surface of the precast composite slab can be freely adjusted by the slot 4 fixed on the upper chord steel bar 9 of the truss, so as to meet the diverse pipeline needs on the engineering site.

[0034] The pipeline grooving tool 5 is fixed to the upper chord steel bar 9 of the truss through the slot 4.

[0035] The groove mold 1 can be made of rubber to facilitate the insertion of the upper chord steel bar 9 of the truss into the groove 4.

[0036] The groove mold 1 has an arc shape, which can reduce the difficulty of demolding and reduce the damage caused during the demolding process.

[0037] The combination of the operating handle 2 and the spring 3 ensures that the grooving mold 1 is firmly fixed on the upper chord steel bar 9 of the truss, preventing the grooving mold 1 from being misaligned and ensuring the depth and forming quality of the groove 11.

[0038] The operating handle 2 and spring 3 are used together to facilitate demolding after the precast base plate 10 of the composite plate is formed, thereby reducing the molding damage to the pressure groove 11.

[0039] The position and number of slots 4 can be adjusted according to usage requirements, and are suitable for various depths of grooves 11.

[0040] The grooving method for the pipeline grooving tool of the precast base slab of the reinforced concrete composite slab described above includes the following steps in the grooving process:

[0041] (a) First, the grooving mold 1, operating handle 2, spring 3 and slot 4 are made into a whole to form the pipeline grooving tool 5;

[0042] (b) Install the precast composite slab base plate mold 6, the steel reinforcement cage 7, and the truss reinforcement 8;

[0043] (c) Fix the pipeline grooving tool 5 to the upper chord steel bar 9 of the truss by operating the handle 2, spring 3 and slot 4, so that the pipeline grooving tool 5 is embedded into the precast base plate 10 of the composite slab to a certain depth, and adjust the embedding depth by using the slot 4.

[0044] (d) Pour concrete into the precast composite slab base plate 10 and vibrate it to compact it. At this time, the spring 3 is in a clamping state to ensure that the groove mold 1 is firmly fixed on the upper chord steel bar 9 of the truss and to ensure the forming quality of the groove 11.

[0045] (e) After the concrete strength meets the requirements, the pipeline groove tool 5 is removed by operating handle 2, and the composite slab precast base plate with pipeline groove 11 of appropriate depth is completed.

[0046] The thickness of the precast composite slab base plate 10 and the steel reinforcement frame 7 are arranged according to the design drawings.

[0047] The depth of the pipeline pressing groove 11 on the surface of the precast base plate of the composite slab can be freely adjusted by the slot 4.

[0048] In summary, this tool is reusable, environmentally friendly, and economical.

[0049] It has many advantages, such as meeting the diverse needs of pipeline laying on composite slab surfaces at engineering sites and improving pipeline construction and laying efficiency;

[0050] It can achieve factory production, shorten the production cycle, and meet the needs of the development of prefabricated buildings;

[0051] Reduce the thickness of composite slabs and the height of truss reinforcement in areas with dense pipelines to save costs;

[0052] The grooving tool is directly fixed to the truss reinforcement, which is flexible and simple to arrange, easy to operate, and has high production efficiency;

[0053] Developing this tool and method can help solve the problem of pipelines being difficult to pass through truss reinforcement, improve pipeline layout efficiency, enhance the construction quality of composite slabs, and achieve good economic and social benefits.

[0054] The above description is merely an illustrative example of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the present invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A tool for grooving pipelines in a precast bottom slab of a reinforced concrete composite slab, characterized in that, The pipeline grooving tool includes a grooving mold (1), an operating handle (2), a spring (3), and a slot (4); the operating handle (2) has two bent shears; the two bent shears are hinged together in the middle; the outer end of the shears is provided with a ring, and the other end of the shears is fixed perpendicularly to the grooving mold (1); there are two grooving molds (1), the cross-section of which is a quarter-circle arc; the two grooving molds (1) are respectively fixed on the two shears; the two grooving molds (1) are opposite to each other. One side is provided with a slot (4); the slot (4) is semi-circular arc-shaped; the spring (3) is connected to the end of the shear handle and the groove mold (1) which is vertically fixed; the groove mold (1), the operating handle (2), the spring (3) and the slot (4) form a pipeline groove tool (5); the spring (3) clamps and fixes the pipeline groove tool (5) on the upper chord steel bar of the truss; the slot (4) is set at different positions of the groove mold (1) so as to freely adjust the groove depth of the precast base plate of the composite slab.

2. The tool for grooving pipelines in a precast bottom slab of a reinforced concrete composite slab according to claim 1, characterized in that, The groove mold (1) is made of rubber to facilitate the insertion of the upper chord steel bar (9) of the truss into the groove (4).

3. The tool for grooving pipelines in a precast bottom slab of a reinforced concrete composite slab according to claim 1, characterized in that, The groove mold (1) has an arc shape.

4. The tool for grooving pipelines in a precast bottom slab of a reinforced concrete composite slab according to claim 1, characterized in that, The operating handle (2) and spring (3) are used together to ensure that the grooving mold (1) is firmly fixed on the upper chord steel bar (9) of the truss, to prevent the grooving mold (1) from being misaligned, and to ensure the depth and forming quality of the grooving (11).

5. A tool for grooving pipelines in a precast base slab of a reinforced concrete composite slab according to claim 1, characterized in that, The operating handle (2) and spring (3) are used together to facilitate demolding after the precast base plate (10) of the composite plate is formed, reducing the molding damage to the pressure groove (11).

6. The tool for grooving pipelines in a precast bottom slab of a reinforced concrete composite slab according to claim 1, characterized in that, The position and number of slots (4) can be adjusted, and they are suitable for slots (11) of various depths.

7. A grooving method for a pipeline grooving tool for a precast base slab of a reinforced concrete composite slab as described in any one of claims 1-6, characterized in that, The groove forming process includes the following steps: (a) First, the grooving mold (1), operating handle (2), spring (3) and slot (4) are made into a whole to form a pipeline grooving tool (5); (b) Install the precast base plate mold (6), steel reinforcement cage (7) and truss reinforcement (8) of the composite slab; (c) Fix the pipeline grooving tool (5) on the upper chord steel bar (9) of the truss by operating the handle (2), spring (3) and slot (4), so that the pipeline grooving tool (5) is embedded into the precast base plate (10) of the composite slab to a certain depth, and adjust the embedding depth by using the slot (4); (d) Pour concrete into the precast base plate (10) of the composite slab and vibrate it to make it compact. At this time, the spring (3) is in a clamping state to ensure that the groove mold (1) is firmly fixed on the upper chord steel bar (9) of the truss and to ensure the forming quality of the groove (11). (e) After the concrete strength meets the requirements, the pipeline groove tool (5) is removed by operating the handle (2), and the composite slab precast base plate with pipeline groove (11) of appropriate depth is completed.

8. The grooving method for the pipeline grooving tool of the precast bottom slab of the reinforced concrete composite slab according to claim 7, characterized in that: The thickness of the precast base plate (10) and the steel reinforcement frame (7) are arranged according to the design drawings.

9. The grooving method for the pipeline grooving tool of the precast bottom slab of the reinforced concrete composite slab according to claim 7, characterized in that, The depth of the pipeline pressing groove (11) on the surface of the precast base plate of the composite slab can be freely adjusted by the slot (4).

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