Portable device for cyclic utilization of cast-in-place pile reinforcement cage positioning frame

Abstract

The utility model discloses a portable device for cyclic utilization of a cast-in-place pile reinforcement cage positioning frame, and belongs to the technical field of building auxiliary tools. According to the portable device for cyclic utilization of the cast-in-place pile reinforcement cage positioning frame, the reinforcement cage can be installed in an auxiliary mode, and installation and detachment are convenient. Sleeves are arranged at the three corners of a triangular support, a center ring is installed in the center of the triangular support, a through center ring threading hole is formed in the center ring corresponding to a sleeve wall threading hole, a through sleeve wall threading hole is formed in the sleeve wall, a screwed plug is installed at the rear end of an inner cavity of each sleeve, and a telescopic rod is inserted in the front end of the inner cavity of each sleeve. A spring is arranged in an inner cavity of the sleeve between the telescopic rod and the plug, and a multifunctional mounting seat is arranged at the front end of the telescopic rod. According to the utility model, the large-diameter and large-diameter reinforcement cage is prevented from bending deformation and falling apart, and meanwhile, the auxiliary erecting ribs can be recycled after the reinforcement cage enters a hole.

Description

Technical Field

[0001] The utility model belongs to the technical field of building auxiliary tools. Background Art

[0002] The main role of the steel cage is the same as the force of the longitudinal steel bars of the column. It mainly plays a tensile role. The compressive strength of concrete is high but the tensile strength is very low. It plays a restraining role on the pile concrete so that it can withstand a certain axial tension. In the construction of bridges and culverts or high-rise buildings, the foundation may be required to be piled according to the requirements. The method is to use machine punching and water grinding to drill holes, and the hole depth meets the design requirements, and then put the steel cage into the pile hole, and then insert the guide tube for concrete pouring. With the continuous development and application of urban underground space, more and more civil engineering projects are concentrated in densely populated urban areas. The construction risks faced when carrying out engineering operations in this environment are very high, especially when excavating deep and large foundation pits, it is very easy to have a certain impact on surrounding buildings, or the geological conditions of the project are poor, and soil subsidence is easy to occur during the construction process, which poses a great safety hazard to the construction of the project. Therefore, the base foundation needs to be pre-reinforced. At present, bored piles are an important part of deep foundation pit construction in the construction process of such projects, and they play an irreplaceable role. Since there is no vibration, no soil squeezing and low noise during construction, it is widely used in base reinforcement. Bored piles are actually made by ground drilling equipment to open holes at the predetermined pile positions. After the holes are formed, the pre-processed steel cage is placed in the holes, and then concrete is poured to form cast-in-place piles. This is to reinforce the base soil layer. However, in the actual construction process of existing bored piles, when the piles are long, especially large-diameter piles, the steel cages are processed on site. During transportation and hoisting, the steel cages are long, and the internal frame reinforcement is insufficient, which is very easy to cause bending and falling apart. At the same time, after the steel cages are put into the holes, the frame reinforcement of the steel cages in the holes before the concrete is poured is too much and it is not easy to recycle, which will cause a large waste of materials. In view of such situations, the traditional steel cage frame reinforcement arrangement will not be able to deal with such dangerous situations, which will affect the safety of the steel cages during transportation and hoisting, and also have a certain adverse effect on the loss of materials. Therefore, a new type of steel cage reinforcement device is urgently needed to achieve the smooth transportation and lowering of the steel cage into the hole, while ensuring that the steel cage reinforcement can be recycled and reused, ultimately ensuring the quality of the cast-in-place piles.

[0003] At present, during the on-site production and transportation of bored cast-in-place pile reinforcement cages, reinforcement bars are often welded at a certain interval. However, this measure will have a small impact on short and small reinforcement cages. When encountering long and large diameter reinforcement cages during transportation and hoisting, due to the heavy weight of their own structure, if certain reinforcement bars are not temporarily reinforced at some nodes, it is very easy to cause the risk of bending and falling apart. At the same time, if the temporary reinforcement bars are not recycled after welding, a certain amount of material waste will occur. Summary of the invention

[0004] The utility model designs a portable device for recycling a positioning frame of a cast-in-place pile reinforcement cage, which is used for auxiliary installation of the reinforcement cage and is convenient for installation and disassembly.

[0005] The three corners of the triangular bracket of the utility model are all provided with sleeves, and the central part of the triangular bracket at the intersection of the axes of the three sleeves is installed with a center ring through a connecting beam, and a through center ring threading hole is opened in the center ring corresponding to the threading hole of the sleeve wall, and the center ring threading hole is connected to the center ring hole of the center ring; a through sleeve wall threading hole is opened on the sleeve wall, a wire plug is installed at the rear end of the sleeve inner cavity, a telescopic rod is inserted at the front end of the sleeve inner cavity, a spring is arranged in the sleeve inner cavity between the telescopic rod and the wire plug, and the front end of the telescopic rod is a multifunctional mounting seat, and mounting grooves are opened on both sides of the front end of the multifunctional mounting seat, and the tail ends of the clamping claws on both sides are inserted into the mounting grooves and are installed through the mounting shaft, and the bottom ends of the two spring sheets are respectively fixed on the telescopic rod, and the upper ends are respectively placed on the outer sides of the clamping claws on both sides.

[0006] The utility model is mainly used for the production, transportation and lifting of long-diameter steel cages to ensure that the long-diameter steel cages will not bend, deform or fall apart, and at the same time ensure that the auxiliary frame bars can be recycled after the steel cages are put into the hole. Ultimately, the quality of concrete pouring is guaranteed. The construction time of the device is: local node welding of the steel cages during processing in the processing plant, and during the transportation and lifting of the steel cages into the hole. The use of this device can effectively replace the original conventional steel cage skeleton support device, and at the same time, the device can ensure the safety of the steel cage during transportation and lifting. After the steel cage is put into the hole, the ground operator recovers the frame bars in the steel cage as a whole by lifting the steel strands, and finally achieves material recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the structure of the utility model;

[0008] Figure 2 It is an enlarged schematic diagram of a single angle of the triangular bracket of the utility model;

[0009] Figure 3 This is a single-angle sectional view of the triangular bracket of the utility model, and the wires have been threaded in the figure;

[0010] Figure 4 This is a schematic diagram of the triangular bracket of the utility model after threading;

[0011] Figure 5 It is a schematic diagram of applying multiple utility models in a steel cage;

[0012] Figure 6 The utility model is applied in a steel cage. DETAILED DESCRIPTION

[0013] The three corners of the triangular bracket 1 of the utility model are all provided with sleeves 3, and the central part of the triangular bracket 1 at the intersection of the axes of the three sleeves 3 is installed with a center ring 4 through a connecting beam, and a through center ring threading hole 5 is opened in the center ring 4 corresponding to the sleeve wall threading hole 10, and the center ring threading hole 5 is connected to the center ring hole of the center ring 4; a through sleeve wall threading hole 10 is opened on the wall of the sleeve 3, a wire plug 11 is installed at the rear end of the inner cavity of the sleeve 3, a telescopic rod 2 is inserted at the front end of the inner cavity of the sleeve 3, a spring 13 is arranged in the inner cavity of the sleeve 3 between the telescopic rod 2 and the wire plug 11, and the front end of the telescopic rod 2 is a multifunctional mounting seat 9, and mounting grooves are opened on both sides of the front end of the multifunctional mounting seat 9, and the tail ends of the clamping claws 6 on both sides are inserted into the mounting grooves and are installed through the mounting shaft 7, and the bottom ends of the two spring sheets 8 are respectively fixed on the telescopic rod 2, and the upper ends are respectively placed on the outside of the clamping claws 6 on both sides.

[0014] The triangular bracket 1 is an equilateral right triangle, the sleeve 3 is located at the three corners, the center ring 4 is a ring, and its center is the orthocenter of the triangular bracket 1. The center ring threading hole 5 on the center ring 4 is a through hole, and corresponds to the through hole (tube wall threading hole 10) on the wall of the sleeve 3. The thread plug 11 is to block the back side of the sleeve 3, and can be connected by thread, which is convenient for disassembly and installation. The telescopic rod 2 is movable relative to the sleeve 3, that is, the telescopic rod 2 is telescopic in and out of the cavity of the sleeve 3. When it enters under the action of external force, the spring 13 is compressed. After the external force is released, the spring ejects the telescopic rod 2, but try to keep part of the tail end of the telescopic rod 2 in the cavity of the sleeve 3 to prevent it from falling out by itself. During transportation, it can be considered to be separated from the sleeve 3, which is convenient for disassembly and transportation.

[0015] The telescopic rod 2 and the multifunctional mounting seat 9 can be processed as one piece. The multifunctional mounting seat 9 is provided to facilitate the installation of the clamping jaws 6. There are two clamping jaws 6, which are installed relatively to each other and can rotate around the mounting axis 7, that is, the two clamping jaws 6 can open and close. The opening work is completed by the pull wire 12, and the closing work is completed by the elastic force of the spring sheet 8.

[0016] When in use, one end of the pull wire is fixed to the outside of the clamping jaw 6, and the other end passes through the wire threading hole 10 of the cylinder wall and the wire threading hole 5 of the center ring, and comes out from the center hole of the center ring 4 (when coming out from the center hole, the pull wire 12 is rotated ninety degrees. In order to prevent the pull wire 12 from being worn or pulled off by the edge of the center hole during the pulling process, a material to prevent friction reduction can be installed at the friction position or a pulley can be added (this structure is used in many fields, so it is not described in detail here).

[0017] When in use, release the pull wire 12. At this time, under the action of the spring sheet 8, the two clamps 6 are merged and clamp a steel bar. At this time, the three sets of clamps clamp three steel bars A in a triangle, and then the reinforcement ring B of the steel cage is positioned based on the three steel bars. Finally, the reinforcement ring B between them is welded with other steel bars based on the three steel bars (see Figure 5 and Figure 6 ). When the steel cage is installed and placed on the working surface, all the pull wires 12 of the utility model are pulled, and under the action of the pulling force, the front end of the clamping claw 6 is accepted and separated, and the clamping of the steel bar is released. Continue to pull, the telescopic rod 2 and the multifunctional mounting seat 9 are retracted into the sleeve 3, and the spring is compressed, so that the distance from the center of the utility model to the steel bar is shortened. Continue to pull to pull the utility model up inside the steel cage, so that the entire steel cage is left at the working surface.

[0018] The utility model mainly comprises a steel strand, an inclined rod, an inner support rod, a circular ring, a sleeve, a spring, a clamp, a push rod and a support rod, and is a portable device that can be used for recycling the reinforcement of the cast-in-place pile reinforcement cage.

[0019] This device is mainly used for the production, transportation and lifting of long-diameter steel cages to ensure that the long-diameter steel cages do not have the risk of bending, deformation and falling apart, and at the same time ensure that the auxiliary frame bars can be recycled after the steel cages enter the hole. Ultimately, the quality of concrete pouring is guaranteed. The construction time of this device is: local node welding of the steel cages during processing in the processing plant, and during the transportation and lifting of the steel cages into the hole. The use of this device can effectively replace the original conventional steel cage skeleton support device, and at the same time, the device can ensure the safety of the steel cage during transportation and lifting. After the steel cage enters the hole, the ground operator recovers the frame bars in the steel cage as a whole by lifting the steel strands, and finally achieves material recycling. In order to achieve the above purpose, the technical solution of the present invention is:

[0020] The device is composed of steel strands, diagonal rods, inner support rods, rings, sleeves, springs, clamps, push rods and support rods. The outer side of the device is mainly composed of diagonal rods, sleeves, springs, clamps, push rods and support rods; the inner side is mainly composed of steel strands, inner support rods and rings. The overall combined structure of the device can effectively ensure the safety of the steel cage during transportation and lifting, and can also ensure that the device can be easily recovered by ground personnel after the steel cage is put into the hole. Thus, the above purpose is achieved.

[0021] The outer side of the device is mainly composed of an inclined rod, a sleeve, a spring, a clamp, a push rod, and a support rod. The inclined rods are connected end to end with equal length to form an outer skeleton. At the same time, the intersection of the two inclined rods is welded through a sleeve to form an overall structure. The front end of the sleeve is inserted into the support rod, and the rear end is inserted into the push rod. The push rod is adjusted to move and fix the support rod. A clamp is installed on the protruding end of the support rod, and the outer side of the clamp is connected to the push rod through a spring. When the steel cage is processed and manufactured in the steel processing plant, the device can be pre-installed at the predetermined node inside the steel cage, and the support rod can be tightly connected to the steel cage skeleton through the clamp by adjusting the push rod. In this way, the safety of the steel cage during transportation and lifting is ensured, and there is no risk of large bending deformation and disintegration. Finally, the casting quality of the bored pile is guaranteed, thereby achieving the above purpose.

[0022] The inside of the device is mainly composed of steel strands, inner support rods, and circular rings. One end of the inner support rod is welded to the diagonal rod, and the other end is welded to the circular ring. One end of the steel strand passes through the holes reserved on both sides of the casing to connect to the outside of the clamp, and the other end is connected to the steel strand passing through the circular ring. The manufactured steel cage is placed into the cast-in-place pile hole through an external lifting device. After the ground positioning equipment adjusts the steel cage to meet the requirements, the ground operator lifts the steel strand passing through the circular ring and drives the steel strand passing through the holes on both sides of the casing to open the clamp outward, so that the entire device is separated from the steel cage in turn, and then lifted up and recovered to the ground. Finally, it is ensured that the material can be recycled, thereby achieving the above purpose.

[0023] When on-site construction personnel are processing and manufacturing steel cages in the steel processing plant, they can pre-install the device at the predetermined nodes inside the steel cage, and then use ground operating equipment to transport and hoist the steel cage to the designed and constructed pile hole. After waiting for the construction personnel to level the steel cage, before pouring the concrete, the ground operator lifts the steel strands passing through the ring and then drives the steel strands passing through the holes on both sides of the casing to open the clamp outward, so that the entire device is separated from the steel cage in turn, and then continues to lift the steel strands to retract the device to the ground for the next steel cage production and hoisting construction operation.

[0024] The utility model is suitable for the production, transportation and lifting of long-diameter steel cages, and can ensure that the long-diameter steel cages do not produce excessive bending deformation and the risk of falling apart, and at the same time ensure that the auxiliary reinforcement can be recycled after the steel cages are put into the hole. The device of the present invention is mainly composed of steel strands, inclined rods, inner support rods, rings, sleeves, springs, clamps, push rods and support rods. When the ground construction personnel first process and produce the steel cages in the steel processing plant, they can pre-install the device at the predetermined nodes inside the steel cages, and then use the ground lifting equipment to transport and lift the steel cages to the pile holes that have been designed and constructed. After waiting for the construction personnel to level the steel cages, before pouring the concrete, the ground operators lift the steel strands to open the clamps outward, so that the entire reinforcement device is separated from the steel cages in turn, and then continue to lift the steel strands to recycle the device to the ground to achieve material recycling.

[0025] The device has a simple structure and is easy to construct. Compared with the traditional steel cage reinforcement device, it can ensure the safety of the steel cage during transportation and lifting, and can also recycle the reinforcement device and has the advantages of low construction safety risk.

[0026] The utility model has made certain optimizations in structure and adopts a combination mode of connecting joints of the reinforcement clamp and the auxiliary reinforcement cage, which can effectively prevent excessive bending deformation and the risk of falling apart during the transportation and lifting of the reinforcement cage. Compared with traditional reinforcement cage reinforcement, it has the advantage of a wide range of applications and can guarantee the casting quality of subsequent bored piles to a large extent.

[0027] The internal and external connection structure design of the device is safe and reliable. Before pouring concrete, the steel strand is lifted up to drive the clamp to separate the reinforcement device from the steel cage, and then lifted to the ground for recycling.

[0028] This is the first time that a new type of device has been used to position steel cages. Taking into account the technical difficulties currently faced in the construction of long-diameter steel cages, auxiliary frame bars are used to connect the steel cages. This has great technical foresight in ensuring the safety of steel cage transportation and lifting and material recovery.

[0029] The device is a portable device for recycling the reinforcement of cast-in-place pile reinforcement cages. The device is not only easy to operate and safe to use, but also a recyclable device. More importantly, the device is very convenient to assemble, debug and disassemble. Therefore, the device has great practical value compared with the traditional reinforcement cage positioning welding device.

Claims

1. A portable device for recycling cast-in-place pile reinforcement cage positioning frame, characterized in that: The three corners of the triangular bracket (1) are provided with sleeves (3); a central ring (4) is installed at the central part of the triangular bracket (1) where the axes of the three sleeves (3) intersect, through a connecting beam; a through central ring threading hole (5) is opened in the central ring (4) corresponding to the sleeve wall threading hole (10); the central ring threading hole (5) is connected to the central ring hole of the central ring (4); a through sleeve wall threading hole (10) is opened on the sleeve (3) wall; a wire plug (11) is installed at the rear end of the inner cavity of the sleeve (3); A telescopic rod (2) is inserted into the front end of the inner cavity of the tube (3), a spring (13) is arranged in the inner cavity of the sleeve (3) between the telescopic rod (2) and the screw plug (11), the front end of the telescopic rod (2) is a multifunctional mounting seat (9), mounting grooves are provided on both sides of the front end of the multifunctional mounting seat (9), the tail ends of the clamping claws (6) on both sides are inserted into the mounting grooves, and are installed through the mounting shaft (7), the bottom ends of the two spring leaves (8) are respectively fixed on the telescopic rod (2), and the upper ends are respectively placed on the outer sides of the clamping claws (6) on both sides.

Images