Laminated slab post-cast strip formwork construction device

Abstract

The utility model provides a laminated slab post-cast strip template construction device, which belongs to the technical field of building construction, and comprises a template, a connecting block body, a connecting steel bar, a pressure plate, a connecting screw rod and a locking nut, the two ends of the template are respectively abutted against two laminated slabs, and the template is provided with a first through hole; the connecting block body is fixedly mounted at the upper end of the template, and a screw hole is formed in the connecting block body; the upper end of the connecting steel bar is connected with the steel bar bracket; the pressing plate is mounted below the template and is provided with a second through hole; cushion blocks are arranged on two sides of the upper end surface of the pressing plate; the connecting screw rod penetrates through the first through hole and the second through hole from bottom to top, and the upper end of the connecting screw rod is connected with the screw hole; and the locking nut is mounted at the lower end of the connecting screw rod. According to the laminated slab post-cast strip formwork construction device, the operation steps before and after the post-cast strip is poured with concrete are simplified, meanwhile, the using length of steel bars is reduced, and the construction cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and more specifically relates to a construction device for a post-casting strip template of a composite slab. Background Art

[0002] The composite slab is an assembled integral floor slab formed by superimposing prefabricated slabs and cast-in-place reinforced concrete layers. The composite slab has good integrity, and the upper and lower surfaces of the slab are flat, which is convenient for finishing layer decoration. It is suitable for high-rise buildings and large-span buildings with high requirements for overall rigidity. At present, when pouring the post-cast strip between two composite slabs, it is necessary to arrange the formwork directly below the post-cast strip, and use steel bars to pass through the formwork and be located inside the post-cast strip. The upper end of the steel bar is fixedly connected to the steel bar bracket above the composite slab, and the lower end is located below the formwork and is locked and fixed with nuts. After the post-cast strip is poured, the formwork is removed and the steel bars are sawed off. This formwork support method is more cumbersome to operate, and there are more steel bars left in the post-cast strip, which is more expensive. Utility Model Content

[0003] The utility model aims to provide a composite slab post-casting strip formwork construction device to solve the technical problems of the prior art that the formwork support method is complicated to operate and has a high construction cost.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a construction device for the template of the post-casting strip of the composite plate, including a template, a connecting block, connecting steel bars, a pressure plate, a connecting screw and a locking nut, wherein the template is used to be installed below the post-casting strip between two composite plates; the two ends of the template are respectively abutted against the lower end surfaces of the two composite plates and are sealed and connected to the composite plates; a first through hole is opened on the template; the connecting block is fixedly installed on the upper end of the template and is located inside the post-casting strip; a penetrating screw hole is provided on the connecting block; the connecting steel bars are vertically arranged and installed at In the post-cast strip; the connecting steel bar is located above the connecting block, the upper end of the connecting steel bar is connected to the steel bar bracket, and the outer side of the lower end is provided with a threaded section connected to the screw hole; the pressure plate is installed below the formwork and is arranged parallel to the formwork; a second through hole is provided on the pressure plate; pads are provided on both sides of the upper end surface of the pressure plate; the connecting screw is passed through the first through hole and the second through hole from bottom to top, and the upper end is connected to the screw hole; the locking nut is installed at the lower end of the connecting screw, for locking and fixing the connecting screw and the pressure plate.

[0005] In a possible implementation, the pad and the pressure plate are in a U-shaped structure, and the two pads on both sides of the pressure plate are respectively supported on both sides of the formwork outside the post-casting zone.

[0006] In a possible implementation, the cushion block and the pressure plate are integrally formed.

[0007] In a possible implementation, the template is a long strip structure arranged along the length direction of the post-cast strip, and the connecting blocks, the connecting steel bars, the pressure plates, the connecting screws and the locking nuts are multiple and correspond to each other one by one.

[0008] In a possible implementation, a spring washer is provided on the connecting screw.

[0009] In a possible implementation, the connecting block is a cone that is small at the top and large at the bottom.

[0010] In a possible implementation, a mounting groove is provided at the lower end of the connecting block, and the screw hole is provided through the bottom surface of the mounting groove.

[0011] In a possible implementation, extension plates extending outward are provided on both sides of the template, and a sealing pad layer is provided on a side of the extension plate close to the post-casting strip.

[0012] In a possible implementation, both sides of the pressure plate are provided with connecting rods arranged toward the extension plate and pressing blocks installed on the ends of the connecting rods, and the pressing blocks are used to press on the extension plate.

[0013] In a possible implementation, the connecting rod is an arc-shaped rod bent in a direction away from the post-casting strip.

[0014] The beneficial effects of the post-casting strip formwork construction device for the composite slab provided by the utility model are as follows: compared with the prior art, the post-casting strip formwork construction device for the composite slab provided by the utility model, when in use, a steel bar bracket is installed above the post-casting strip, and the length of the steel bar bracket is greater than the width of the post-casting strip, and the two ends of the steel bar bracket are respectively supported on two composite slabs; the formwork is installed below the post-casting strip, and the two sides of the formwork are respectively abutted against the two composite slabs, and the connecting block is located inside the post-casting strip; then the connecting steel bar is used to be threadedly connected to the screw hole of the connecting block from top to bottom, and the upper end is fixed to the steel bar bracket The connecting screw passes through the second through hole on the pressure plate and the first through hole on the template from bottom to top and is connected to the screw hole of the connecting block, and the locking nut is used to fix the connecting screw and the pressure plate, and the pressure plate is simply squeezed on the template with the help of the pads on both sides; concrete is poured in the post-casting strip and after the concrete hardens, the nut is removed, and the force plate, the connecting screw, the pad template and the connecting screw are removed; in this way, the operation steps before and after pouring concrete in the post-casting strip are simplified, and the length of steel bars used is also reduced, thereby reducing the construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 A schematic diagram of the structure of the composite slab post-casting strip template construction device provided by the embodiment of the utility model Figure 1 ;

[0017] Figure 2 A schematic diagram of the structure of the composite slab post-casting strip template construction device provided by the embodiment of the utility model Figure 2 .

[0018] Among them, the reference numerals in the figure are:

[0019] 1. Formwork; 11. First through hole; 12. Extension plate; 13. Sealing cushion layer; 2. Connecting block; 21. Screw hole; 3. Connecting steel bar; 4. Pressure plate; 41. Second through hole; 42. Cushion block; 43. Connecting rod; 44. Pressure block; 5. Connecting screw; 51. Spring washer; 6. Locking nut; 7. Composite plate; 71. Post-casting strip; 72. Steel bar support. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] See also Figure 1 , the construction device of the post-casting strip formwork for the composite slab provided by the utility model is now described. A construction device of the post-casting strip formwork for the composite slab comprises a formwork 1, a connecting block 2, connecting steel bars 3, a pressure plate 4, a connecting screw 5 and a locking nut 6. The formwork 1 is used to be installed below the post-casting strip 71 between two composite slabs 7; the two ends of the formwork 1 are respectively abutted against the lower end surfaces of the two composite slabs 7 and are sealed and connected to the composite slabs 7; a first through hole 11 is opened on the formwork 1; the connecting block 2 is fixedly installed on the upper end of the formwork 1 and is located inside the post-casting strip 71; a penetrating screw hole 21 is provided on the connecting block 2; the connecting steel bars 3 are vertically arranged and installed on the post-casting strip 7 1; the connecting steel bar 3 is located above the connecting block 2, the upper end of the connecting steel bar 3 is connected to the steel bar bracket 72, and the outer side of the lower end is provided with a threaded section connected to the screw hole 21; the pressure plate 4 is installed below the template 1, and is arranged parallel to the template 1 with a spacing; a second through hole 41 is provided on the pressure plate 4; both sides of the upper end surface of the pressure plate 4 are provided with pads 42; the connecting screw 5 is penetrated from bottom to top in the first through hole 11 and the second through hole 41, and the upper end is connected to the screw hole 21; the locking nut 6 is installed at the lower end of the connecting screw 5, and is used to lock and fix the connecting screw 5 and the pressure plate 4.

[0025] Compared with the prior art, the composite slab post-casting strip formwork construction device provided by the utility model is as follows: when in use, a steel bar support 72 is installed above the post-casting strip 71, and the length of the steel bar support 72 is greater than the width of the post-casting strip 71, and the two ends of the steel bar support 72 are respectively supported on the two composite slabs 7; the formwork 1 is installed below the post-casting strip 71, and the two sides of the formwork 1 are respectively abutted on the two composite slabs 7, and the connecting block 2 is located inside the post-casting strip 71; then, the connecting steel bar 3 is threadedly connected to the screw hole 21 of the connecting block 2 from top to bottom, and the upper end is fixedly connected to the steel bar support 72; and the connecting screw 5 is threadedly connected from bottom to top The connecting screw 5 passes through the second through hole 41 on the pressure plate 4, the first through hole 11 on the template 1 and the screw hole 21 of the connecting block 2, and the locking nut 6 is used to fix the connecting screw 5 to the pressure plate 4. The pressure plate 4 is simply squeezed on the template 1 with the help of the pads 42 on both sides; pour concrete in the post-cast strip 71 and after the concrete hardens, remove the nut, and remove the force plate, connecting screw 5, pad 42 template 1 and connecting screw 5; in this way, the operating steps before and after pouring concrete in the post-cast strip 71 are simplified, and the length of steel bars used is also reduced, thereby reducing the construction cost.

[0026] See also Figure 1 As a specific embodiment of the composite slab post-cast strip formwork construction device provided by the utility model, the pad block 42 and the pressure plate 4 are in a U-shaped structure, and the two pad blocks 42 on both sides of the pressure plate 4 are respectively supported on both sides of the formwork 1 outside the post-cast strip 71; that is, pad blocks 42 are arranged on both sides of the upper end surface of the pressure plate 4, and the pressure plate 4 and the two pad blocks 42 form a U-shaped structure, so that the two pad blocks 42 are respectively squeezed on both sides of the formwork 1, so that the two sides of the formwork 1 are tightly connected with the two composite slabs 7.

[0027] See also Figure 1 As a specific implementation of the composite slab post-casting strip formwork construction device provided by the utility model, the pad 42 and the pressure plate 4 are integrally formed, which improves the connection strength and reliability between the pad 42 and the pressure plate 4, ensures that the pressure plate 4 and the pad 42 exert a stable force on the formwork 1, and the construction project is safer.

[0028] See also Figure 1 As a specific embodiment of the composite slab post-casting strip formwork construction device provided by the utility model, the formwork 1 is a long strip structure arranged along the length direction of the post-casting strip 71, and the connecting blocks 2, connecting steel bars 3, pressure plates 4, connecting screws 5 and locking nuts 6 are all multiple and correspond to each other one by one; the long strip structure formwork 1 has multiple pressure plates 4 and the like from the bottom of the post-casting strip 71, and is arranged along the length direction of the post-casting strip 71, so that the formwork 1 is subjected to more uniform force, the installation is more stable, and the sealing performance is also better.

[0029] See also Figure 1 As a specific implementation of the composite slab post-casting strip formwork construction device provided by the utility model, a spring washer 51 is provided on the connecting screw 5; with the help of the spring washer 51, the locking nut 6 makes the connection rigidity between the connecting screw 5 and the pressure plate 4 stronger, and the spring washer 51 has a buffering effect, which can effectively prevent the influence of vibration on the locking nut 6, and the anti-loosening effect is better.

[0030] See also Figure 1 As a specific embodiment of the composite slab post-casting strip formwork construction device provided by the utility model, the connecting block 2 is a cone-shaped body with a small top and a large bottom. This structure makes it easier and more labor-saving to remove and disassemble the connecting block 2, and it is not easy to damage the post-casting strip 71 after pouring.

[0031] See also Figure 1As a specific implementation of the composite slab post-casting strip formwork construction device provided by the utility model, a mounting groove is provided at the lower end of the connecting block 2, and a screw hole 21 is penetrated through the bottom surface of the groove; the mounting groove increases the size of the lower end opening of the screw hole 21, and the screw rod 5 is installed in the screw hole 21 in the connecting block 2 more accurately and quickly with the help of the mounting groove; at the same time, the weight of the entire connecting block 2 is also reduced with the help of the mounting groove.

[0032] See also Figure 2 As a specific embodiment of the construction device of the post-casting strip template of the composite slab provided by the utility model, the two sides of the template 1 are provided with extension plates 12 extending outward, and the side of the extension plate 12 close to the post-casting strip 71 is provided with a sealing pad layer 13; the provision of the extension plate 12 increases the effective connection area between the two sides of the template 1 and the composite slab 7, so that the template 1 has a better sealing effect on the post-casting strip 71 area, and the installation of the template 1 itself is also more stable. In addition, the sealing pad layer 13 is provided on the extension plate 12, so that the extension plate 12 and the composite slab 7 have good sealing performance.

[0033] See also Figure 2 As a specific embodiment of the composite slab post-casting strip formwork construction device provided by the utility model, both sides of the pressure plate 4 are provided with connecting rods 43 arranged toward the extension plate 12 and pressure blocks 44 installed at the ends of the connecting rods 43, and the pressure blocks 44 are used to press on the extension plate 12; when the locking nut 6 and the connecting screw 5 are used to press the pressure plate 4 and the cushion block 42 on the formwork 1, the pressure blocks 44 are pressed on the two extension plates 12 through the connecting rods 43, so that the extension plates 12 are subjected to the force of the pressure blocks 44, and thus more tightly and reliably abut against the composite plate 7.

[0034] See also Figure 2 As a specific embodiment of the composite slab post-casting strip formwork construction device provided by the utility model, the connecting rod 43 is an arc-shaped rod bent in the direction away from the post-casting strip 71, and the arc-shaped rod is formed by being recessed in the direction away from the pad 42. Through the connecting rod 43 of this structure, the connecting rod 43 can accurately and effectively act on the pressure block 44 with the movement of the pressure plate 4, and the pressure block 44 is tightly squeezed on the extension plate 12 after being subjected to the force of the connecting rod 43.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite slab post-casting strip formwork construction device, characterized in that: The invention comprises a template, a connecting block, connecting steel bars, a pressure plate, a connecting screw and a locking nut, wherein the template is used to be installed below the post-casting strip between two superimposed plates; the two ends of the template are respectively abutted against the lower end surfaces of the two superimposed plates and are sealed and connected with the superimposed plates; a first through hole is opened on the template; the connecting block is fixedly installed on the upper end of the template and is located inside the post-casting strip; a screw hole is provided on the connecting block; the connecting steel bar is vertically arranged and installed in the post-casting strip; the connecting steel bar is located above the connecting block, the upper end of the connecting steel bar is connected to the steel bar bracket, and the outer side of the lower end is provided with a threaded section connected to the screw hole; the pressure plate is installed below the template and is arranged parallel to the template at intervals; a second through hole is provided on the pressure plate; pads are provided on both sides of the upper end surface of the pressure plate; the connecting screw is penetrated from bottom to top in the first through hole and the second through hole, and the upper end is connected to the screw hole; the locking nut is installed at the lower end of the connecting screw and is used to lock and fix the connecting screw and the pressure plate.

2. The composite slab post-casting strip formwork construction device according to claim 1, characterized in that: The pad and the pressure plate are in a U-shaped structure, and the two pads on both sides of the pressure plate are respectively supported on both sides of the template outside the post-casting zone.

3. The composite slab post-casting strip formwork construction device according to claim 2, characterized in that: The cushion block and the pressure plate are integrally formed.

4. The composite slab post-casting strip formwork construction device according to claim 1, characterized in that: The template is a long strip structure arranged along the length direction of the post-cast strip. The connecting blocks, the connecting steel bars, the pressure plates, the connecting screws and the locking nuts are all multiple and correspond to each other one by one.

5. The composite slab post-casting strip formwork construction device according to claim 1, characterized in that: A spring washer is arranged on the connecting screw.

6. The composite slab post-casting strip formwork construction device according to claim 1, characterized in that: The connecting block is a cone-shaped body that is small at the top and large at the bottom.

7. The composite slab post-casting strip formwork construction device according to claim 1, characterized in that: The lower end of the connecting block is provided with an installation groove, and the screw hole is penetrated through the groove bottom surface of the installation groove.

8. The composite slab post-casting strip formwork construction device according to claim 1, characterized in that: Extension plates extending outward are arranged on both sides of the template, and a sealing pad layer is arranged on one side of the extension plate close to the post-casting strip.

9. The composite slab post-casting strip formwork construction device according to claim 8, characterized in that: Both sides of the pressure plate are provided with connecting rods arranged toward the extension plate and pressing blocks installed on the ends of the connecting rods, and the pressing blocks are used for pressing on the extension plate.

10. The composite slab post-casting strip formwork construction device according to claim 9, characterized in that: The connecting rod is an arc-shaped rod bent in a direction away from the post-casting strip.

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