Bending and anti-cracking integrated tool for overhanging steel bars of prefabricated concrete laminated slab
Through the combined tool of anti-crack assembly and bending assembly, the problem of difficult to control and break the bending angle of the precast concrete laminated plate steel bars is solved, and stable bending and anti-crack protection of the steel bars are achieved.
Patent Information
- Application Number
- CN202422167892.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-09-04
AI Technical Summary
The exposed steel bars on precast concrete stacked slabs are difficult to control the angle and are prone to break during bending.
The combination of anti-crack assembly and bending assembly is adopted, including defective semicircle plates, complete semicircle plates, press plates, screws, insert blocks, pins and bending shafts, etc. The steel bars are fixed through plug-in and threaded connections, and the positioning and bending of the steel bars are achieved with the bending handle.
Effectively control the bending angle of the steel bars to avoid breaking the ends of the steel bars during bending, and improve construction efficiency and quality.
Smart Images
Figure CN223250420U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of prefabricated assembly construction, and in particular relates to an integrated tool for bending and crack prevention of extended steel bars of a prefabricated concrete composite slab. Background Art
[0002] Precast concrete composite slabs are a type of building material made of precast concrete, commonly used in wall and floor construction. They consist of two layers of concrete slabs connected by concrete beams or steel bars to form a single, integrated structure. Precast concrete composite slabs offer advantages such as high strength, durability, ease of installation, and low cost, making them widely used in construction projects. They can be prefabricated in the factory and then transported to the site for installation, significantly reducing construction time and labor costs.
[0003] During the hoisting and installation process of precast concrete composite slabs, the exposed steel bars on the precast concrete composite slabs need to be manually bent a second time. During the bending process, on the one hand, the bending angle cannot be controlled, and on the other hand, the traditional hollow tube bending method damages the ends of the steel bars and the concrete at the ends. Therefore, the utility model provides an integrated tool for bending and crack prevention of the extended steel bars of precast concrete composite slabs. Summary of the Invention
[0004] The purpose of the utility model is to provide an integrated tool for bending and crack prevention of the extended steel bars of precast concrete composite slabs, which solves the problem that the bending angle of the exposed steel bars on the precast concrete composite slabs cannot be controlled and the ends of the steel bars are easily bent and broken.
[0005] In order to achieve the above-mentioned object, the utility model provides an integrated tool for bending and crack prevention of extended steel bars of precast concrete composite slabs, comprising an anti-cracking component and a bending component, wherein the anti-cracking component comprises a defective semicircular plate and a complete semicircular plate, and the defective semicircular plate and the complete semicircular plate are in contact with each other, an insert is fixedly connected to the edge of the defective semicircular plate, and the insert is clamped with the complete semicircular plate, a pressure plate is slidably connected to the inner side of the defective semicircular plate, and a screw is threadedly connected to the interior of the pressure plate;
[0006] The bending assembly includes a pad, which is welded to the bottom of the complete semicircular plate. An end plate is welded to the left side of the upper end of the pad, and the end plate is welded to the outer side of the defective semicircular plate. A bending shaft is fixedly connected to the inner side of the defective semicircular plate, and a bending plate is movably connected to the outer side of the shaft body of the bending shaft.
[0007] The principle of the present invention is that when in use, the operator places the pressure plate on the steel bar, and then plugs the complete semicircular plate with the defective semicircular plate, and then the complete semicircular plate has a pin, and the defective semicircular plate has an insert block, and then the pin and the insert block are plugged into each other, and the screws pass through the round hole to connect the defective semicircular plate with the pressure plate, thereby achieving the fixation of the steel bar, and then placing the anti-cracking component on the pad, adjusting the position of the steel bar and the bending axis, and pulling the bending handle, thereby achieving the protection of the end of the composite plate steel bar and the bending of the steel bar at the same time.
[0008] The beneficial effects of the present invention are as follows: through the coordinated arrangement of the defective semicircular plate, the complete semicircular plate, the pressure plate, the screws, the plug blocks and the pins, when in use, the steel bars are placed on the complete semicircular plate, the pressure plate presses the ends of the steel bars, and then the complete semicircular plate and the defective semicircular plate are plugged in; in addition, the complete semicircular plate is provided with a pin, and the defective semicircular plate is provided with a plug block, and then the pin and the plug block are plugged in to each other, and then the screws are passed through the circular holes of the defective semicircular plate to fix the steel bars, thereby protecting the ends of the concrete and making it less likely to break from the root during the bending process.
[0009] By setting up end plates, bending plates, bending handles, bending shafts, pads and other components, a bending assembly is formed. The bending assembly and the anti-cracking assembly work together, and by turning the bending handle upwards, the bending of the steel bars and the bending angle can be made consistent at the same time.
[0010] Furthermore, the defective semicircular plate is arc-shaped and has a notch at its end, so that the steel bar is not blocked when being bent.
[0011] Furthermore, the bent plate is slidably connected to the outer side of the end plate, and the bent plate is in contact with the pad. The arrangement of the bent plate facilitates applying thrust to the steel bar.
[0012] Furthermore, a latch is provided on the edge of the complete semicircular plate, and the latch is engaged with the insert block. The provision of the latch facilitates the insertion of the insert block into the complete semicircular plate.
[0013] Furthermore, the number of the insert blocks is four, the number of the latch pins is four, and the positions of the insert blocks and the latch pins correspond to each other. The arrangement of the insert blocks and the latch pins facilitates the joining and positioning between the defective semicircular plate and the complete semicircular plate.
[0014] Furthermore, a circular hole is provided inside the defective semicircular plate, and a screw is inserted into the circular hole. The provision of the circular hole facilitates the insertion of the screw into the defective semicircular plate.
[0015] Furthermore, a bending handle is welded inside the bending plate, and the bending handle is made of steel. The arrangement of the bending handle facilitates the operation of bending and flipping the bending plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a disassembled diagram of the anti-cracking component of an integrated tool for bending and preventing the extended steel bars of a precast concrete composite slab according to an embodiment of the present invention;
[0017] Figure 2 This is a front view of an integrated tool for bending and cracking extended steel bars of a precast concrete composite slab according to an embodiment of the present invention;
[0018] Figure 3 This is a rear view of an integrated tool for bending and cracking extended steel bars of a precast concrete composite slab according to an embodiment of the present invention;
[0019] Figure 4 This is a schematic diagram of a tool for bending and preventing the protruding steel bars of a precast concrete composite slab after bending according to an embodiment of the present invention. DETAILED DESCRIPTION
[0020] The following is further described in detail through specific implementation methods:
[0021] The figure marks in the drawings of the specification include: anti-cracking component 1, bending component 2, defective semicircular plate 11, complete semicircular plate 12, pressure plate 13, screw 14, round hole 111, plug block 112, pin 121, end plate 21, pad 22, bending plate 23, bending handle 24, bending shaft 25.
[0022] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, this embodiment provides an integrated tool for bending and cracking extended steel bars of precast concrete composite slabs, comprising an anti-crack assembly 1 and a bending assembly 2. The anti-crack assembly 1 comprises a defective semicircular plate 11 and a complete semicircular plate 12, which are in contact with each other. The defective semicircular plate 11 is arc-shaped and has a notch at its end. The notch facilitates unobstructed bending of the steel bars. An insert 112 is fixedly connected to the edge of the defective semicircular plate 11, and the insert 112 is engaged with the complete semicircular plate 12. A pressure plate 13 is slidably connected to the inner side of the defective semicircular plate 11. A screw 14 is threadedly connected to the interior of the pressure plate 13. A circular hole 111 is formed in the interior of the defective semicircular plate 11, and the screw 14 is inserted into the circular hole 111. The provision of the circular hole 111 facilitates the insertion of the screw 14 through the defective semicircular plate 11.
[0023] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown, the bending assembly 2 includes a backing plate 22 welded to the bottom of the intact semicircular plate 12. An end plate 21 is welded to the left side of the upper end of the backing plate 22. The end plate 21 is welded to the outside of the defective semicircular plate 11. A bending shaft 25 is fixedly connected to the inside of the defective semicircular plate 11, and a bending plate 23 is movably connected to the outside of the shaft of the bending shaft 25. The bending plate 23 is slidably connected to the outside of the end plate 21 and contacts the backing plate 22. The provision of the bending plate 23 facilitates the application of thrust to the steel bar.
[0024] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, a latch 121 is provided on the edge of the complete semicircular plate 12, and the latch 121 is engaged with the plug block 112. The provision of the latch 121 facilitates the insertion of the plug block 112 into the complete semicircular plate 12. There are four plug blocks 112 and four latches 121, and the positions of the plug blocks 112 and the latches 121 correspond. The provision of the plug blocks 112 and the latch 121 facilitates the combination and positioning between the defective semicircular plate 11 and the complete semicircular plate 12. A bending handle 24 is welded to the inside of the bending plate 23, and the bending handle 24 is made of steel. The provision of the bending handle 24 facilitates the bending and flipping operations of the bending plate 23.
[0025] The specific implementation process of the present invention is as follows: when in use, the operator places the pressure plate 13 on the steel bar, and then plugs the complete semicircular plate 12 with the defective semicircular plate 11, and then the complete semicircular plate 12 has a pin 121, and the defective semicircular plate 11 has an insert block 112, and then the pin 121 and the insert block 112 are plugged into each other, and the screw 14 passes through the circular hole 111 to connect the defective semicircular plate 11 with the pressure plate 13, thereby achieving the fixation of the steel bar, and then place the anti-cracking component 1 on the pad 22, adjust the position of the steel bar and the bending axis 25, and pull the bending handle 24, so as to simultaneously achieve the protection of the steel bar end of the composite plate and the bending of the steel bar.
[0026] This solution is configured by coordinating the defective semicircular plate 11, the complete semicircular plate 12, the pressure plate 13 with the screws 14, the plug block 112, and the pin 121. When in use, the steel bar is placed on the complete semicircular plate 12, the pressure plate 13 presses the end of the steel bar, and then the complete semicircular plate 12 is plugged into the defective semicircular plate 11. In addition, the complete semicircular plate 12 is provided with a pin 121, and the defective semicircular plate 11 is provided with an plug block 112. Then the pin 121 and the plug block 112 are plugged into each other, and then the screw 14 is passed through the circular hole 111 of the defective semicircular plate 11 to fix the steel bar, thereby protecting the end of the concrete and making it less likely to break from the root during the bending process.
[0027] By setting up components such as end plates 21, bending plates 23, bending handles 24, bending shafts 25, and pads 22, a bending assembly 2 is formed. The bending assembly 2 cooperates with the anti-cracking assembly 1, and by rotating the bending handle 24 upward, the bending of the steel bars and the consistency of the bending angle can be achieved at the same time.
[0028] It should be noted in advance that, in the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integral connection; they may refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0029] The above is only an embodiment of the present invention, and the common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. An integrated tool for bending and crack prevention of extended steel bars in precast concrete composite slabs, comprising an anti-cracking component and a bending component, characterized in that: The anti-crack assembly includes a defective semicircular plate and a complete semicircular plate, and the defective semicircular plate and the complete semicircular plate are in contact with each other. An insert is fixedly connected to the edge of the defective semicircular plate, and the insert is clamped with the complete semicircular plate. A pressure plate is slidably connected to the inner side of the defective semicircular plate, and a screw is threadedly connected to the interior of the pressure plate. The bending assembly includes a pad, which is welded to the bottom of the complete semicircular plate. An end plate is welded to the left side of the upper end of the pad, and the end plate is welded to the outer side of the defective semicircular plate. A bending shaft is fixedly connected to the inner side of the defective semicircular plate, and a bending plate is movably connected to the outer side of the shaft body of the bending shaft.
2. The integrated tool for bending and cracking the extended steel bars of precast concrete composite slabs according to claim 1, characterized in that: The defective semicircular plate is in an arc shape, and a notch is provided at the end thereof.
3. The integrated tool for bending and cracking the extended steel bars of precast concrete composite slabs according to claim 1, characterized in that: The bent plate is slidably connected to the outer side of the end plate, and the bent plate is in contact with the pad.
4. The integrated tool for bending and cracking the extended steel bars of precast concrete composite slabs according to claim 1, characterized in that: A latch is provided on the edge of the complete semicircular plate, and the latch is engaged with the insertion block.
5. The integrated tool for bending and cracking the extended steel bars of precast concrete composite slabs according to claim 4, characterized in that: There are four inserting blocks and four latching pins, and the positions of the inserting blocks and the latching pins correspond to each other.
6. The integrated tool for bending and cracking the extended steel bars of precast concrete composite slabs according to claim 1, characterized in that: A circular hole is provided inside the defective semicircular plate, and a screw is inserted into the circular hole.
7. The integrated tool for bending and cracking the extended steel bars of precast concrete composite slabs according to claim 1, characterized in that: A bending handle is welded inside the bending plate, and the bending handle is made of steel.