Combined mold for steel bar truss concrete floor support plate

Abstract

The utility model discloses a combined mould of steel bar truss concrete floor support plate belongs to building technical field. This combined mould includes bottom plate, and the upper surface of bottom plate is provided with two mutually parallel long side side plates, and two long side side plates are provided with short side side plate, and long side side plate is perpendicular with short side side plate, and two long side side plates still are provided with movable side plate, and long side side plate, short side side plate and movable side plate enclose quadrilateral, and movable side plate top is provided with batten, and bottom plate is provided with two slide grooves, and two slide grooves are located respectively outside two long side side plates and set along the length direction of long side side plate, and two slide grooves are provided with clamping mechanism respectively, and slide groove and batten are connected through clamping mechanism. Combined mould can effectively reduce the production cost of steel bar truss concrete floor support plate, and improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a combined mold for a steel truss concrete floor slab. Background Technology

[0002] As a pillar industry of the national economy, the construction industry plays a vital role in my country's economic development, and prefabricated construction, as a core path for the transformation and upgrading of the construction industry, has been increasingly widely used.

[0003] As a core component of prefabricated buildings, steel-truss thin concrete floor decks not only exhibit excellent mechanical properties but also allow for formwork-free, close-fitting construction with minimal or no support. Furthermore, the steel reinforcement in these decks does not protrude externally; instead, it integrates with the cast-in-place structure via additional reinforcement, facilitating installation. The large space provided by the steel truss facilitates the threading, installation, and construction of reinforcing bars and electrical / plumbing pipes. Compared to traditional precast floor slabs, they are more convenient, economical, and durable.

[0004] Traditionally, the mold dimensions for manufacturing thin concrete floor slabs with steel trusses are fixed, such as... Figure 1 As shown, a single construction project often requires hundreds of different mold specifications. However, the vast majority of molds from one project cannot be used for another and must be scrapped, increasing the production cost of steel truss thin concrete floor slabs. Furthermore, since the required production quantity for each specification of steel truss thin concrete floor slab varies, molds with low utilization rates lead to resource waste, further increasing production costs; molds with high utilization rates are prone to wear and tear, and since wear and tear is unpredictable, it's impossible to prepare spare molds in advance. Making molds on the spot significantly reduces production efficiency. In addition, some irregularly shaped steel truss thin concrete floor slabs even require a separate mold for each slab, especially for temporary needs that require temporary mold making, which not only increases production costs but also reduces production efficiency.

[0005] Therefore, how to reduce the production cost of steel truss thin concrete floor slabs while improving production efficiency is an urgent technical problem to be solved. Utility Model Content

[0006] To address the technical problems of low production efficiency and high production cost of steel truss thin concrete floor decks in the prior art, this application provides a combined mold for steel truss concrete floor decks, including a base plate. The upper surface of the base plate is provided with two parallel long side plates, and a short side plate is provided between the two long side plates. The long side plates are perpendicular to the short side plates, and a movable side plate is also provided between the two long side plates. The long side plates, the short side plates, and the movable side plate form a quadrilateral. A pressure strip is provided above the movable side plate. The base plate is provided with two sliding grooves, which are respectively located on the outside of the two long side plates and are arranged along the length direction of the long side plates. A clamping mechanism is provided in each of the two sliding grooves, and the sliding grooves and the pressure strip are connected by the clamping mechanisms. In the clamped state, the pressure strip and the base plate generate a clamping force on the movable side plate; In the non-clamped state, the clamping mechanism can slide within the groove.

[0007] In a preferred embodiment of this utility model, the pressure strip is provided with through holes at both ends, the clamping mechanism is provided with a rod, the rod passes through the groove and the through hole, and the clamping mechanism is a spiral clamping mechanism or a downward clamping mechanism.

[0008] Furthermore, the spiral clamping mechanism includes a bolt and a nut, the width of the bolt head is greater than the width of the groove, the bolt head is located below the groove, the nut is located above the pressure bar, and the nut is threadedly connected to the shank of the bolt.

[0009] Furthermore, the nut is a hand-tightening nut, which is selected from one of the following: wing nut, knurled nut, and slotted nut.

[0010] In a preferred embodiment of this utility model, the short side plate is detachably connected to the bottom plate.

[0011] Furthermore, a fixing ear plate is provided on the outer side of the short side plate, and the fixing ear plate is connected to the base plate by a spiral fastener.

[0012] In a preferred embodiment of this utility model, the base plate is rectangular, and a rectangular steel pipe is provided below the base plate. The rectangular steel pipe includes a first rectangular steel pipe and a second rectangular steel pipe. The first rectangular steel pipe is parallel to the long side of the base plate, and the second rectangular steel pipe is parallel to the short side of the base plate. The first rectangular steel pipe and the second rectangular steel pipe are staggered to form a grid structure, and the quadrilateral is located within the orthographic projection of the grid structure.

[0013] Furthermore, at least two lifting rings are provided on the opposite circumferential sides of the grid structure.

[0014] As a preferred embodiment of the present invention, reinforcing ribs are provided on the outer sides of the long side plate and the short side plate.

[0015] As a preferred embodiment of any of the present invention, the thickness of the steel truss concrete floor slab is 15cm to 20cm.

[0016] In a preferred embodiment of this utility model, the base is made of steel or aluminum alloy, and the long side plate, the short side plate and the movable side plate are made of aluminum alloy or wood.

[0017] This utility model also provides a combined mold for reinforced concrete floor slabs, including a base plate. Two parallel short side plates are provided on the upper surface of the base plate. A long side plate is provided between the two short side plates, perpendicular to the short side plates. A movable long side plate is also provided between the two short side plates. The long side plates, short side plates, and movable long side plates form a quadrilateral. A long side pressure strip is provided above the movable long side plate. The base plate has two short side grooves, located outside the two short side plates and parallel to them. Clamping mechanisms are provided in each of the two short side grooves. The short side grooves and the long side pressure strip are connected through the clamping mechanisms. In the clamped state, the long side pressure strip and the bottom plate generate a clamping force on the long side movable side plate; In the non-clamped state, the clamping mechanism can slide within the short side groove.

[0018] Furthermore, the clamping mechanism is a spiral clamping mechanism, which includes a bolt and a nut. The width of the bolt head is greater than the width of the slide groove. The bolt head is located below the slide groove. The shank of the bolt passes through the slide groove and the through hole. The nut is located above the pressure bar and is threadedly connected to the shank of the bolt.

[0019] Furthermore, the long side plate is detachably connected to the bottom plate.

[0020] Compared with the prior art, the technical solution provided in this application has the following advantages: (1) This utility model provides a combined mold for reinforced concrete floor slabs with steel trusses. By setting movable side plates, the same mold can be used to produce reinforced concrete floor slabs with steel trusses of different lengths, which improves the substitutability between combined molds. Considering that the cost of adding or modifying movable side plates is negligible, the combined mold provided by this utility model can be used to produce reinforced concrete floor slabs with steel trusses of different lengths, as well as some irregularly shaped thin reinforced concrete floor slabs with steel trusses, such as right trapezoids. It can also be applied to different building projects, effectively improving the utilization rate of combined molds and reducing the production cost of reinforced concrete floor slabs with steel trusses.

[0021] In addition, improving the substitutability between modular molds can reduce the temporary production of spare molds, which can both reduce production costs and improve production efficiency.

[0022] Therefore, the combined mold provided by the utility model can reduce the production cost of steel truss concrete floor slabs and improve production efficiency.

[0023] (2) This utility model provides a combined mold for steel truss concrete floor decking. By using hand-tightening nuts, no professional tools are required, which improves the ease of operation and production efficiency in the production process of steel truss concrete floor decking.

[0024] (3) This utility model provides a combined mold for steel truss concrete floor slabs. The short side plate and the bottom plate are detachably connected. The short side plate of different heights can be replaced to make steel truss concrete floor slabs of different thicknesses, which further improves the versatility of the combined mold and further reduces the production cost.

[0025] (4) This utility model provides a combined mold for reinforced concrete floor slabs. By using rectangular steel pipes as the rigid base of the bottom plate, it can prevent the bottom plate from warping, bending, or other deformations. At the same time, reinforcing ribs are provided to prevent deformation of the long or short side plates during concrete filling and solidification, thereby avoiding the production of reinforced concrete floor slabs that are unqualified due to deformation. In addition, the addition of lifting rings on the mold can increase the convenience of transporting solidified or unsolidified reinforced concrete floor slabs. Attached Figure Description

[0026] Figure 1 A three-dimensional structural diagram of a traditional mold for manufacturing thin concrete floor decks with steel trusses; Figure 2 This is a three-dimensional structural diagram of the combined steel truss concrete floor slab mold in the embodiment. Figure 1 ; It should be noted that the arrows in the diagram indicate the direction of movement of the movable side panel; Figure 3 This is a schematic diagram of the clamping mechanism of the combined steel truss concrete floor slab mold in the embodiment; Figure 4 This is a three-dimensional structural diagram of the combined steel truss concrete floor slab mold in the embodiment. Figure 2 .

[0027] Explanation of reference numerals in the attached figures: 1. Base; 2. Base plate; 3. Long side plate; 4. Short side plate; 5. Movable side plate; 6. Pressure strip; 7. Spiral clamping mechanism; 701. Bolt; 702. Nut; 8. Slide groove; 9. Concrete; 10. Steel truss; 11. Lifting ring; 12. Fixed ear plate. Detailed Implementation

[0028] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0029] In the description of this utility model, it should be understood that the terms "longitudinal", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0032] It should be noted that the geometric relationships such as "parallel" and "perpendicular" used in this article do not refer to absolute parallelism or perpendicularity. The error that can be accepted by those skilled in the art is still considered as "parallel" or "perpendicular". For example, when the included angle is 89°, the included angle is still a perpendicular relationship that can be accepted by those skilled in the art.

[0033] Example 1 See Figures 2-4 This embodiment provides a combined mold for reinforced concrete floor slabs, including a rectangular base plate 2. Two parallel long side plates 3 are provided on the upper surface of the base plate 2, extending along its length. Two parallel short side plates 4 are also provided on the upper surface of the base plate 2, extending along its width. The two long side plates 3 and two short side plates 4 enclose a rectangular area. This is consistent with traditional molds. Figure 1 As shown. The long side plate 3 and the short side plate 4 have the same height, both 15~20cm, and are used to make reinforced concrete floor decks with a thickness of 15~20cm.

[0034] Rectangular steel pipes are installed on the lower surface of the base plate 2. These rectangular steel pipes, arranged around the perimeter of the lower surface of the base plate 2, are parallel to the corresponding sides of the base plate 2 and form a rectangle. The other rectangular steel pipes within this rectangle are arranged in a crisscrossing grid structure, with each grid unit being rectangular. This rectangular grid structure formed by the steel pipes serves as the base 1 of the modular mold, i.e., the base 1 is located on the lower surface of the base plate 2. Using the rectangular steel pipes as the rigid base 1 of the base plate 2 provides sufficient support and effectively prevents warping, bending, or other deformations of the base plate 2.

[0035] Based on the above structure, in this embodiment, the upper surface of the base plate 2 in the combined mold is provided with two sliding grooves 8. The two sliding grooves 8 are respectively located on the outer side of the two long side plates 3 and are parallel to the long side plates 3. The length of the sliding grooves 8 is greater than or equal to the length of the long side plates 3. Specifically, the two sliding grooves 8 are through holes that penetrate the base plate 2 and the side where the rectangular steel pipe connects to the lower surface of the base plate 2.

[0036] A movable side plate 5 is provided between the two long side plates 3. The movable side plate 5 can be parallel to or not parallel to the short side plate 4. The two long side plates 3, one short side plate 4, and the movable side plate 5 form a quadrilateral area for fabricating the reinforced concrete floor slab. A pressure strip 6 is provided above the movable side plate 5, and the pressure strip 6 is parallel to the movable side plate 5. Through holes are provided at both ends of the pressure strip 6. The shank of the bolt 701 passes through the groove 8 and the through hole of the pressure strip 6 from bottom to top, and then is threadedly connected to the nut 702. Since the width of the bolt head is greater than the width of the groove 8, tightening or loosening the nut 702 can make the pressure strip 6 and the base plate 2 exert or not exert clamping force on the movable side plate 5. For ease of operation, the nut 702 can be selected from one of the following: wing nut, knurled nut, and slotted nut, so that the nut 702 can be tightened or loosened without the use of tools.

[0037] The helical clamping mechanism 7 consisting of bolt 701 and nut 702 can also be replaced by other clamping mechanisms, such as a downward clamping mechanism or an eccentric clamping mechanism. The rod portion of the downward clamping mechanism or the eccentric clamping mechanism also passes through the slide groove 8 and the through hole.

[0038] One set of opposite sides of the base 1 is provided with lifting rings 11 to facilitate the transportation of the uncured steel truss concrete floor slab.

[0039] Reinforcing ribs are provided on the upper surface of the bottom plate 2 located outside the long side plate 3 and the short side plate 4. These ribs are used to prevent deformation of the long side plate 3 or the short side plate 4 during the filling and solidification of concrete 9, so as to avoid the prepared steel truss concrete floor slab from being unqualified due to deformation.

[0040] When fabricating the reinforced concrete floor slab, adjust the movable side plate 5 to the corresponding position according to the length of the reinforced concrete floor slab, and tighten the nut 702. Apply clamping force to the movable side plate 5 through the pressure strip 6 and the base plate 2 to fix the movable side plate 5. Then lay the reinforced truss 10 and fill it with concrete 9. After the concrete 9 self-levels, move the mold containing the reinforced concrete floor slab to the curing zone for curing using the lifting ring 11. After curing, demolding is performed by first loosening the nut 702, then removing the movable side plate 5, and taking the reinforced concrete floor slab out from the side where the movable side plate 5 is located.

[0041] The movable side panel 5 can also be adjusted so that it is not parallel to the short side panel 4, such as... Figure 4 As shown, the same process is used to manufacture irregularly shaped steel truss concrete floor decks, namely right-angled trapezoidal steel truss concrete floor decks.

[0042] Example 2 The difference between this embodiment and Embodiment 1 is that fixing lugs 12 are welded to the outer surfaces of the long side plate 3 and the short side plate 4. The long side plate 3 and the short side plate 4 are detachably connected to the base 1 via the fixing lugs 12, such as by means of spiral fasteners or other fasteners. Figure 4 As shown. This allows for the replacement of long side plates 3 and short side plates 4 with different thicknesses to produce reinforced concrete floor slabs with different thicknesses, thus improving the versatility of the mold.

[0043] Example 3 The difference between this embodiment and Embodiment 1 is that a long movable side plate is provided between the short side plate 4 and the movable side plate 5. A long pressure strip is provided above the long movable side plate, and the long pressure strip is parallel to the long movable side plate. Through holes are provided at both ends of the long pressure strip. Two short side grooves are also provided on the upper surface of the base plate 2. The two short side grooves are respectively provided on the outer side of the two short side plates 4 and are parallel to the short side plates 4. The length of the short side grooves is greater than or equal to half the length of the short side plate 4 and less than the length of the short side plate 4. Specifically, the two short side grooves are through holes that penetrate the base plate 2 and the side where the rectangular steel pipe connects to the lower surface of the base plate 2.

[0044] The shank of bolt 701 passes through the through holes of the short-side groove and the long-side pressure strip from bottom to top, and then is threaded into nut 702. Since the width of the bolt head is greater than the width of the short-side groove, tightening or loosening nut 702 can create or prevent clamping force between the long-side pressure strip and the base plate 2 on the long-side movable side plate. For ease of operation, nut 702 can be selected from one of the following: wing nut, knurled nut, or slotted nut, allowing for tightening or loosening without the need for tools.

[0045] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A combined mold for a reinforced concrete floor slab, comprising a base plate (2), wherein two parallel long side plates (3) are provided on the upper surface of the base plate (2), and a short side plate (4) is provided between the two long side plates (3), wherein the long side plates (3) are perpendicular to the short side plates (4), characterized in that, A movable side plate (5) is also provided between the two long side plates (3). The long side plates (3), the short side plates (4), and the movable side plates (5) form a quadrilateral. A pressure strip (6) is provided above the movable side plate (5). The bottom plate (2) is provided with two sliding grooves (8). The two sliding grooves (8) are respectively located on the outside of the two long side plates (3) and are arranged along the length direction of the long side plates (3). A clamping mechanism is provided in each of the two sliding grooves (8). The sliding grooves (8) and the pressure strip (6) are connected by the clamping mechanism. In the clamped state, the pressure strip (6) and the base plate (2) generate a clamping force on the movable side plate (5); In the non-clamped state, the clamping mechanism can slide within the groove (8).

2. The combined mold according to claim 1, characterized in that, The pressure strip (6) has through holes at both ends, and the clamping mechanism has a rod that passes through the groove (8) and the through hole. The clamping mechanism is a spiral clamping mechanism (7) or a downward clamping mechanism.

3. The combined mold according to claim 2, characterized in that, The spiral clamping mechanism (7) includes a bolt (701) and a nut (702). The width of the head of the bolt (701) is greater than the width of the groove (8). The head of the bolt (701) is located below the groove (8). The nut (702) is located above the pressure bar (6). The nut (702) is threadedly connected to the shank of the bolt (701).

4. The combined mold according to claim 3, characterized in that, The nut (702) is a hand-tightening nut, which is selected from one of the following: wing nut, knurled nut, and slotted nut.

5. The combined mold according to claim 1, characterized in that, The short side plate (4) is detachably connected to the bottom plate (2).

6. The combined mold according to claim 5, characterized in that, A fixing ear plate (12) is provided on the outer side of the short side plate (4), and the fixing ear plate (12) is connected to the bottom plate (2) by a spiral fastener.

7. The combined mold according to claim 1, characterized in that, The base plate (2) is rectangular, and a rectangular steel pipe is provided below the base plate (2). The rectangular steel pipe includes a first rectangular steel pipe and a second rectangular steel pipe. The first rectangular steel pipe is parallel to the long side of the base plate (2), and the second rectangular steel pipe is parallel to the short side of the base plate (2). The first rectangular steel pipe and the second rectangular steel pipe are intersected to form a grid structure. The quadrilateral is located within the orthographic projection of the grid structure.

8. The combined mold according to claim 7, characterized in that, The grid structure has at least two lifting rings (11) on its opposite circumferential sides.

9. The combined mold according to claim 1, characterized in that, Reinforcing ribs are provided on the outer sides of the long side plate (3) and the short side plate (4).

10. A combined mold for a reinforced concrete floor slab, comprising a base plate (2), wherein two parallel short side plates (4) are provided on the upper surface of the base plate (2), and a long side plate (3) is provided between the two short side plates (4), wherein the long side plate (3) is perpendicular to the short side plates (4), characterized in that, A long side movable side plate is also provided between the two short side plates (4). The long side plate (3), the short side plate (4) and the long side movable side plate form a quadrilateral. A long side pressure strip is provided above the long side movable side plate. The bottom plate (2) is provided with two short side sliding grooves. The two short side sliding grooves are located on the outside of the two short side plates (4) and parallel to the short side plates (4). A clamping mechanism is provided in each of the two short side sliding grooves. The short side sliding grooves and the long side pressure strip are connected by the clamping mechanism. In the clamped state, the long side pressure strip and the bottom plate (2) generate a clamping force on the long side movable side plate; In the non-clamped state, the clamping mechanism can slide within the short side groove.

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