A steel bar jacking device

Abstract

A steel bar jacking device comprises a main body and a length adjustment device, the main body comprises a main body shell, a screw drive mechanism and a jacking rod, the screw drive mechanism is installed in the main body shell, a one-way wrench for driving the threaded rod on the screw drive mechanism to rotate is installed outside the main body shell, the jacking rod is a U-shaped rod, one end of the jacking rod is an abutting end for abutting on the steel bar, and the other end is a connecting end, the abutting end of the jacking rod is shorter than the connecting end, the connecting end of the jacking rod passes through a through hole and is fixed to a slider on the screw drive mechanism arranged in the main body shell, the abutting end of the jacking rod is arranged below the bottom of the main body shell, the threaded rod of the screw drive mechanism rotates to drive the slider to slide and drive the connecting end and the abutting end to link together, the present invention realizes the purpose of slowly squeezing the steel cage under the upper wing plate, prevents workers from hitting the longitudinal bars with hammers to cause damage to the steel cage, reduces the labor intensity of workers, and reduces safety risks.

Description

Technical Field

[0001] The invention relates to a reinforcement jacking device. Background Art

[0002] During the processing and manufacturing of the underground continuous wall steel cage, the top longitudinal reinforcement of the underground continuous wall steel cage is set between the frame reinforcement and the transverse horizontal reinforcement. However, according to the design requirements, one side of the underground continuous wall steel cage needs to be inserted between the upper and lower wing plates of the H-shaped steel. However, since the height of the underground continuous wall steel cage just matches the spacing between the upper and lower wing plates, it cannot be inserted directly. The current practice is to first insert the bottom part of the underground continuous wall steel cage into the lower wing plate, and then the workers use a hammer to hit the top longitudinal reinforcement, so that the top of the underground continuous wall steel cage slowly squeezes under the upper wing plate. However, it is difficult for the workers to control the strength and position of the hammer when hitting the longitudinal reinforcement, which can easily damage the welded steel bars, resulting in the need to repair the steel bars at the damaged welds. This operation method is time-consuming, labor-intensive, and material-consuming, and even affects the overall stability of the steel cage. Summary of the invention

[0003] The invention solves the shortcomings of the prior art and provides a reinforcement pushing device which is convenient for pushing the reinforcement cage of an underground continuous wall into between the upper and lower wing plates.

[0004] To achieve the above object, the present invention first proposes a steel bar jacking device, including a main body and a length adjustment device, wherein the main body includes a main body shell, a screw drive mechanism and a jacking rod, the screw drive mechanism is installed in the main body shell, and a one-way wrench for driving the threaded rod on the screw drive mechanism to rotate is installed outside the main body shell.

[0005] The jacking rod is a U-shaped rod, one end of which is an abutting end for abutting against a steel bar, and the other end is a connecting end. The abutting end of the jacking rod is shorter than the connecting end. A through hole matching the size of the jacking rod is provided on the front end of the main body shell. The connecting end of the jacking rod passes through the through hole and is fixed to a slider on a screw drive mechanism provided in the main body shell. The abutting end of the jacking rod is provided below the bottom of the main body shell. The threaded rod of the screw drive mechanism rotates to drive the slider to slide and drive the connecting end to link with the abutting end.

[0006] The length adjustment device includes a serrated plate and a hook plate, a slide groove matching the size of the serrated plate is installed on the top surface of one end of the hook plate, the top of the slide groove is open, and a serrated lock is installed on the top of the slide groove, and a hook is installed on the bottom surface of the other end of the hook plate, and the hook plate can be clamped on the edge of the H-shaped steel wing plate through the hook, and serrations are arranged on the top surface of the serrated plate along the length direction, one end of the serrated plate is fixed to the bottom of the main body shell, and the other end is slidably installed in the slide groove of the hook plate, the serrations of the serrated plate pass through the serrated lock, and the serrated plate can be locked by the serrated lock.

[0007] In this embodiment, the top of the main body housing is open, and the opening at the top of the main body housing is closed by a main body cover.

[0008] In this embodiment, the screw drive mechanism includes a threaded rod, a guide rod and a slider. The guide rod and the threaded rod are arranged in parallel in the main body housing. One end of the slider is threadedly connected to the threaded rod, and the other end is slidably mounted on the guide rod. Both ends of the threaded rod are fixed to bearings by screws. The bearings are fixed to bearing seats by screws, and the bearing seats are fixed to opposite ends of the main body housing by screws. And one end of the threaded rod extends out of the tail end of the main body housing as a driving end, and the one-way wrench is connected to the driving end. Both ends of the guide rod are fixed to the main body housing by screws.

[0009] In this embodiment, the serrated lock includes a lock cover, a lock core and a handle. The lock core is rectangular. The thickness of the lock core matches the spacing between the serrations on the serrated plate. The length of the lock core is greater than the width of the chute. The interval between adjacent lock cores matches the thickness of the serrations. A slide rod perpendicular to the lock core is fixed to the top of the lock core. The lock cover is placed on the top of the chute and fixed to the side walls of the chute. A plurality of rectangular grooves matching the size and position of the lock core are provided on the bottom of the lock cover. Through holes for the slide rod to pass through are provided at the top of the rectangular grooves of the lock cover. The lock core is installed in the rectangular grooves. The slide rod on the lock core extends out from the top of the lock cover through the through hole on the lock cover. A fixing block is provided on the top of the lock cover. A plurality of lock holes corresponding to the number and position of the slide rods are provided on the fixing block. The lock holes and the slide rods are in a tight fit. Notches are provided on the side walls of the chute at positions corresponding to the rectangular grooves on the lock cover. The notches match the height of the lock core. In the initial state, the slide rod of the lock core is inserted into the lock hole of the fixing block, and the lock core is kept in the rectangular groove of the lock cover by the friction force between the inner wall of the lock hole of the fixing block and the slide rod. In the locked state, the fixing block is separated from the slide rod, and the lock core freely falls into the gap between the serrations on the serrated plate. Both sides of the lock core fall into the notches on the side walls of the chute, thereby restricting the movement of the lock core.

[0010] In this embodiment, the fixing block has magnetism, and both the lock core and the slide rod are made of iron material.

[0011] In this embodiment, a groove matching the outer diameter of the steel bar is provided on the abutting end of the jacking rod.

[0012] In this embodiment, the one-way wrench includes a rectangular chuck, a one-way bearing and a handle. The fixed end of the one-way bearing is fixed inside one end of the handle. An anti-slip layer is provided at the other end of the handle. One end of the rectangular chuck is fixedly connected to the movable end of the one-way bearing, and a rectangular hole with a rectangular cross-section is coaxially provided at the other end. A rectangular block matching the size of the rectangular hole is provided at the driving end of the threaded rod. The driving end of the threaded rod is inserted into the rectangular hole of the rectangular chuck through the rectangular block.

[0013] Due to the above structure, when the device is in use, the bottom part of the steel reinforcement cage is placed on the lower flange of the H-shaped steel, the top of the steel reinforcement cage is made to contact the upper flange of the H-shaped steel, and then the hook on the hook-shaped plate is placed on the edge of the flange on the side of the H-shaped steel away from the steel reinforcement cage. The position of the serrated plate on the hook-shaped plate is adjusted through the length adjustment device so that the abutting end of the jacking rod contacts the outside of the longitudinal reinforcement of the steel reinforcement cage closest to the H-shaped steel. Then, the handle of the one-way wrench is swayed to rotate the threaded rod, and the connecting end of the jacking rod is driven by the threaded rod to move away from the steel reinforcement cage, thereby driving the abutting end of the jacking rod to drive the steel reinforcement cage to move between the upper and lower flanges of the H-shaped steel through the longitudinal reinforcement, thus achieving the purpose of slowly squeezing the steel reinforcement cage under the upper flange, preventing the workers from hitting the longitudinal reinforcement with a hammer, causing damage to the steel reinforcement cage, reducing the labor intensity of the workers, and reducing the safety risk. Brief Description of the Drawings

[0014] Figure 1 is the structural schematic diagram of the present invention.

[0015] Figure 2 is the exploded structural schematic diagram of the present invention.

[0016] Figure 3 is the exploded schematic diagram of the length adjustment device of the present invention.

[0017] Figure 4 is the exploded schematic diagram of the one-way wrench of the present invention.

[0018] Figure 5 is the structural schematic diagram when the present invention is working.

[0019] In the figure, 1, fixing nail; 2, bearing; 3, guide rod; 4, jacking rod; 5, rubber pad; 6, first screw; 7, second screw; 8, third screw; 9, fourth screw; 10, fifth screw; 11, bearing seat; 12, main body cover; 13, threaded rod; 14, main body housing; 15, first nut; 16, slider; 17, serrated plate; 18, lock cover; 19, hook-shaped plate; 20, fixing block; 21, second nut; 22, sixth screw; 23, lock core; 24, rectangular chuck; 25, handle; 26, third nut; 27, bearing cover; 28, one-way bearing. Detailed Embodiment

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0022] like Figures 1 to 5 As shown, the present invention provides a steel bar jacking device, including a main body and a length adjustment device, the main body includes a main body shell 14, a main body cover 12, a screw drive mechanism and a jacking rod 4, the main body shell 14 has an opening at the top, the main body shell 14 is closed by the main body cover 12, a rubber pad 5 for anti-slip is fixed to the bottom of the main body shell 14, the screw drive mechanism is installed in the main body shell 14, the screw drive mechanism includes a threaded rod 13, a guide rod 3 and a slider 16, the guide rod 3 and the threaded rod 13 are arranged in parallel on the main body shell 1 4, one end of the slider 16 is threadedly connected to the threaded rod 13, and the other end is slidably installed on the guide rod 3, both ends of the threaded rod 13 are fixed to the bearing 2 by screws, the bearing 2 is fixed to the bearing seat 11 by the fixing nail 1, the bearing seat 11 is fixed to the opposite ends of the main shell 14 by the first screw 6, and one end of the threaded rod 13 extends out of the tail end of the main shell 14 as the driving end, and a one-way wrench that can drive the threaded rod 13 to rotate is installed on the driving end of the threaded rod 13, and both ends of the guide rod 3 are fixed to the main shell 14 by the second screw 7;

[0023] The jacking rod 4 is a U-shaped rod, one end of which is an abutting end abutting against the steel bar, and the other end is a connecting end. The abutting end of the jacking rod 4 is shorter than the connecting end. The abutting end of the jacking rod 4 is provided with a groove matching the outer diameter of the steel bar. The front end of the main body shell 14 is provided with a through hole matching the size of the jacking rod 4. The connecting end of the jacking rod 4 passes through the through hole and is fixed to a slider 16 arranged in the main body shell 14. The abutting end of the jacking rod 4 is arranged below the bottom of the main body shell 14, and the sliding of the slider 16 drives the connecting end to be linked with the abutting end;

[0024] The length adjustment device includes a serrated plate 17 and a hook-shaped plate 19. A chute matching the size of the serrated plate is installed on the top surface of one end of the hook-shaped plate 19. The top of the chute is open, and a serrated lock is installed on the top of the chute. A catch is installed on the bottom surface of the other end of the hook-shaped plate 19. The hook-shaped plate 19 can be clamped on the edge of the H-beam flange through the catch. Serrations are arranged along the length direction on the top surface of the serrated plate 17. One end of the serrated plate 17 is fixed to the bottom of the main body housing 14, and the other end is slidably installed in the chute of the hook-shaped plate 19. The serrations of the serrated plate 17 pass through the serrated lock, and the serrated plate 17 can be locked through the serrated lock;

[0025] The serrated lock includes a lock cover 18, a lock core 23 and a handle 20. The lock core 23 is rectangular. The thickness of the lock core 23 matches the distance between the serrations on the serrated plate 17. The length of the lock core 23 is greater than the width of the chute. The interval between adjacent lock cores 23 matches the thickness of the serrations. A slide bar perpendicular to the lock core 23 is fixed to the top of the lock core 23. The lock cover 18 is fixed to the top of the side wall of the chute. A plurality of rectangular grooves matching the size of the lock core 23 are provided on the bottom of the lock cover 18. Through holes for the slide bar to pass through are provided at the top of the rectangular grooves of the lock cover 18. The lock core 23 is installed in the rectangular grooves. The slide bar on the lock core 23 extends out from the top of the lock cover 18 through the through hole on the lock cover 18. A magnetic fixed block 20 is provided on the top of the lock cover 18. A plurality of lock holes corresponding to the number and position of the slide bars are provided on the fixed block 20. The lock core 23 and the slide bar are both made of iron material. Notches are provided on the side wall of the chute at positions corresponding to the rectangular grooves on the lock cover 18. The notches match the height of the lock core 23. In the initial state, the slide bar of the lock core 23 is inserted into the lock hole of the fixed block 20. Due to the frictional force between the inner wall of the lock hole of the fixed block 20 and the slide bar and the magnetic suction force of the fixed block 20 on the lock core 23, the lock core 23 is kept in the rectangular groove of the lock cover 18. At this time, the serrated plate 17 can move freely in the chute of the hook-shaped plate 19. In the locked state, the fixed block 20 is lifted upward, so that the slide bar is separated from the fixed block 20, and the lock core 20 loses its restriction and freely falls into the gap between the serrations of the serrated plate 17, and both sides of the lock core 20 fall into the notches on the side wall of the chute, thereby restricting the movement of the lock core 20. In this way, the lock core 20 locks the serrated plate 17;

[0026] The one-way wrench includes a rectangular chuck 24, a one-way bearing 28 and a handle 25. The fixed end of the one-way bearing 28 is fixed in the bearing cavity at one end of the handle 25. The outside of the bearing cavity of the handle 25 is closed by a bearing cover 27. The other end of the handle 25 is provided with an anti-slip layer. One end of the rectangular chuck 24 is fixedly connected to the movable end of the one-way bearing 28, and a rectangular hole with a rectangular cross-section is coaxially provided at the other end. A rectangular block matching the size of the rectangular hole is provided at the driving end of the threaded rod 13. The driving end of the threaded rod 13 is inserted into the rectangular hole of the rectangular chuck 24 through the rectangular block, so as to realize the linkage between the threaded rod and the one-way wrench.

[0027] The specific assembly process is as follows:

[0028] First, fix the rubber pad 5 to the bottom of the main body housing with the third screw 8. Pass the connecting end of the jacking rod 4 through the through hole at the front end of the main body housing 14, and fix the connecting end of the jacking rod 4 to the lower part of the slider 16 with three fifth screws 10. Then pass the guide rod 3 through the non-threaded hole in the slider 16, and fix both ends of the guide rod 3 to both ends of the main body housing 14 with the second screw 7 respectively. Fix the bearing 2 in the bearing seat 11 with the fixing nail 1. The two bearing seats 11 are respectively fixed to both ends of the main body housing 14 with the first screw 6 and the first nut 15. The threaded rod 13 first passes through the circular hole at the tail end of the main body housing 14 and then is threadedly connected to the threaded hole in the slider 16. Both ends of the threaded rod 13 are also fixed in the two bearings with fixing nails respectively. Then place the serrated plate 17 into the chute of the hook-shaped plate 19, and place the two lock cores 23 into the two notches on the side wall of the chute of the hook-shaped plate 19 respectively. The guide rods of the lock cores 23 pass through the two circular holes in the lock cover 18, and fix the lock cover 18 to the side wall of the chute of the hook-shaped plate 19 with six fourth screws 9. The circular rods of the lock cores 23 are respectively embedded into the lock holes of the handle 20. Fix the serrated plate 17 to the lower part of the main body housing 14 with four sixth screws 22 and the second nut 21. Fix the main body cover 12 to the upper part of the main body housing 14 with four fourth screws 9. Place the one-way bearing 28 into the bearing cavity of the handle 25, and fix the one-way bearing 28 in the bearing cavity of the handle 25 through the bearing cover 27. One end of the rectangular chuck 24 passes through the central fixing hole of the one-way bearing 28 and is fixed by a nut 26. The rectangular hole at the other end of the rectangular chuck 24 is connected to the rectangular chuck 24 at the driving end of the threaded rod 13, thus completing the assembly of the entire device.

[0029] When in use:

[0030] Such as Figure 5As shown in the figure, first place the bottom part of the steel cage on the lower flange of the H-shaped steel, make the top of the steel cage contact with the upper flange of the H-shaped steel, then place the hook on the hook-shaped plate 19 at the edge of the flange on the side of the H-shaped steel away from the steel cage, adjust the position of the serrated plate 17 on the hook-shaped plate 19 through the length adjustment device, so that the abutting end of the jacking rod 4 contacts the outside of the longitudinal bar of the steel cage closest to the H-shaped steel. Then swing the handle of the one-way wrench to rotate the threaded rod 13, drive the connecting end of the jacking rod to move away from the steel cage through the threaded rod 13, thereby driving the abutting end of the jacking rod 4 to drive the steel cage to move between the upper and lower flanges of the H-shaped steel through the longitudinal bar, thus achieving the purpose of slowly squeezing the steel cage under the lower flange, preventing the steel cage from being damaged by workers hitting the longitudinal bars with hammers, reducing the labor intensity of workers, and reducing safety risks.

[0031] The above is only the preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A steel bar jacking device, characterized in that: The invention comprises a main body and a length adjustment device, wherein the main body comprises a main body shell (14), a screw drive mechanism and a push rod (4), wherein the screw drive mechanism is installed in the main body shell (14), and a one-way wrench for driving a threaded rod (13) on the screw drive mechanism to rotate is installed outside the main body shell (14). The jacking rod (4) is a U-shaped rod, one end of the jacking rod (4) is an abutting end for abutting against a steel bar, and the other end is a connecting end. The abutting end of the jacking rod (4) is shorter than the connecting end. A through hole matching the size of the jacking rod (4) is provided on the front end of the main body shell (14). The connecting end of the jacking rod (4) passes through the through hole and is fixed to a slider (16) on a screw drive mechanism arranged in the main body shell (14). The abutting end of the jacking rod (4) is arranged below the bottom of the main body shell (14). The threaded rod (13) of the screw drive mechanism rotates to drive the slider (16) to slide and drive the connecting end to link with the abutting end. The length adjustment device comprises a sawtooth plate (17) and a hook plate (19), a slide groove matching the size of the sawtooth plate (17) is installed on the top surface of one end of the hook plate (19), the top of the slide groove is open, and a sawtooth lock is installed on the top of the slide groove, a hook is installed on the bottom surface of the other end of the hook plate (19), and the hook plate (19) can be clamped on the edge of the H-shaped steel wing plate through the hook, and saw teeth are arranged on the top surface of the sawtooth plate (17) along the length direction, one end of the sawtooth plate (17) is fixed to the bottom of the main body shell (14), and the other end is slidably installed in the slide groove of the hook plate (19), the saw teeth of the sawtooth plate (17) pass through the sawtooth lock, and the sawtooth lock can be used to lock the sawtooth plate (17).

2. The steel bar jacking device according to claim 1, characterized in that: The main body shell (14) has an opening at the top, and the opening at the top of the main body shell (14) is closed by a main body cover (12).

3. The steel bar jacking device according to claim 1, characterized in that: The screw drive mechanism comprises a threaded rod (13), a guide rod (3) and a slider (16); the guide rod (3) and the threaded rod (13) are arranged in parallel in a main body shell (14); one end of the slider (16) is threadedly connected to the threaded rod (13), and the other end is slidably mounted on the guide rod (3); both ends of the threaded rod (13) are fixed to the bearing (2) by screws; the bearing (2) is fixed to the bearing (2) seat by screws; the bearing (2) seat is fixed to opposite ends of the main body shell (14) by screws; and one end of the threaded rod (13) extends out of the rear end of the main body shell (14) as a driving end; the one-way wrench is connected to the driving end; and both ends of the guide rod (3) are fixed to the main body shell (14) by screws.

4. The steel bar jacking device according to claim 1, characterized in that: The serrated lock includes a lock cover (18), a lock core (23) and a handle (25). The lock core (23) is rectangular. The thickness of the lock core (23) matches the spacing between the serrations on the serrated plate (17). The length of the lock core (23) is greater than the width of the sliding groove. The interval between adjacent lock cores (23) matches the thickness of the serrations. A sliding rod perpendicular to the lock core (23) is fixed at the top of the lock core (23). The lock cover (18) is placed on the top of the sliding groove and fixed to the two side walls of the sliding groove. A plurality of rectangular grooves matching the size and position of the lock core (23) are provided on the bottom of the lock cover (18). Through holes for the sliding rod to pass through are provided at the top of the rectangular grooves of the lock cover (18). The lock core (23) is installed in the rectangular grooves. The sliding rod on the lock core (23) extends out from the top of the lock cover (18) through the through hole on the lock cover (18). A fixing block (20) is provided at the top of the lock cover (18). A plurality of lock holes corresponding to the number and position of the sliding rods are provided on the fixing block (20). The lock holes and the sliding rods are in a tight fit. Notches are provided on the side walls of the sliding groove at positions corresponding to the rectangular grooves on the lock cover (18). The notches match the height of the lock core (23). In the initial state, the sliding rod of the lock core (23) is inserted into the lock hole of the fixing block (20). Due to the frictional force between the inner wall of the lock hole of the fixing block (20) and the sliding rod, the lock core (23) is kept in the rectangular groove of the lock cover (18). In the locked state, the fixing block (20) is separated from the sliding rod, and the lock core (23) freely falls into the gap between the serrations on the serrated plate (17). Both sides of the lock core (23) fall into the notches on the side walls of the sliding groove, thereby restricting the movement of the lock core (23).

5. The steel bar jacking device according to claim 4, characterized in that: The fixing block (20) has magnetism, and both the lock core (23) and the sliding rod are made of iron material.

6. The steel bar jacking device according to any one of claims 1 to 5, characterized in that: A groove matching the outer diameter of the steel bar is provided at the abutting end of the jacking rod (4).

7. The steel bar jacking device according to claim 6, characterized in that: The one-way wrench includes a rectangular chuck (24), a one-way bearing (28) and a handle (25). The fixed end of the one-way bearing (28) is fixed inside one end of the handle (25). An anti-slip layer is provided at the other end of the handle (25). One end of the rectangular chuck (24) is fixedly connected to the movable end of the one-way bearing (28), and a rectangular hole with a rectangular cross-section is coaxially provided at the other end. A rectangular block matching the size of the rectangular hole is provided at the driving end of the threaded rod (13). The driving end of the threaded rod (13) is inserted into the rectangular hole of the rectangular chuck (24) through the rectangular block.

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