A steel bar positioning device for use in shaft secondary lining slip-form construction

Abstract

The application relates to the technical field of building construction, and discloses a reinforcing steel bar positioning device for vertical shaft secondary lining slip form construction, which comprises an assembling frame, the bottom of the assembling frame is fixedly connected with a fixed plate one, the outer wall of the fixed plate one is in contact with a rotating plate, the top of the rotating plate is fixedly connected with a fixed ring, the top of the assembling frame is fixedly connected with a motor, the bottom of the motor is fixedly connected with a rotating column one through a coupling, the outer surface of the rotating column one is fixedly connected with a fixing frame, the outer wall of the fixed ring is provided with a notch, the top of the rotating plate is provided with an assembling hole, a downward pushing ring can push a moving block two matched with the bottom inclined surface of the pushing ring downward under the limitation of the fixed ring, since the number of the positioning assemblies is several, several reinforcing steel bars can be simultaneously driven to move, the positioning of the several reinforcing steel bars is completed, a large amount of time spent in positioning the reinforcing steel bars is reduced, the work load of the staff can be reduced, and the problem that the positioning is wrong due to fatigue of the staff during positioning can be avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building construction equipment, in particular to a reinforcing steel bar positioning device used in shaft secondary lining slip form construction. BACKGROUND

[0002] The quality requirement of reinforced concrete structures is higher and higher, surface cracks of shaft secondary lining concrete constructed from bottom to top by using a slip form construction process are not allowed, and the effective measure to reduce the concrete cracks is to strictly control the reinforcing steel bar position and the reinforcing steel bar cover thickness of the reinforced concrete structure, so that the reinforcing steel bars need to be positioned during the secondary lining slip form construction, so as to facilitate the subsequent work of the workers.

[0003] However, the distance between each reinforcing steel bar and the inner wall of the shaft needs to be measured and positioned by manpower during the secondary lining slip form construction of part of the shaft, which not only consumes a large amount of time, but also causes the workers to be tired after long-time measurement and positioning, which may cause the positioning position to be wrong and other problems, and the low-efficiency working mode may delay the construction period. SUMMARY

[0004] To solve the above technical problems, the application provides a reinforcing steel bar positioning device used in shaft secondary lining slip form construction, which comprises an assembly frame, a fixed plate one is fixedly connected to the bottom of the assembly frame, a rotating plate is in contact with the outer wall of the fixed plate one, a fixed ring is fixedly connected to the top of the rotating plate, a motor is fixedly connected to the top of the assembly frame, a rotating column one is fixedly connected to the bottom of the motor through a coupling, a fixed frame is fixedly connected to the outer surface of the rotating column one, a notch is formed in the outer wall of the fixed ring, and an assembly hole is formed in the top of the rotating plate.

[0005] The fixed assembly is provided in plurality, and the parts contained in the plurality of fixed assemblies are the same, the fixed assembly comprises a rotating rod, and the rotating rod is rotatably connected to the bottom of the fixed plate one through a pin shaft.

[0006] The positioning assembly includes a fixed rod two, a fixed hole is formed in the right side of the fixed rod two, a hydraulic telescopic cylinder one is fixedly connected to the inner wall of the fixed hole, a connecting pipe one is fixedly connected to the left side of the hydraulic telescopic cylinder one, a hydraulic telescopic cylinder two is fixedly connected to the side of the connecting pipe one away from the hydraulic telescopic cylinder one, a push block is fixedly connected to the left side of the hydraulic telescopic cylinder two, a lower pressing ring is in contact with the bottom of the push block, a moving block two is in contact with the bottom of the lower pressing ring, a telescopic column one is fixedly connected to the right side of the hydraulic telescopic cylinder one, and a limiting screw is arranged on the front face of the telescopic column one, the distance between a steel bar and the inner wall of the shaft is measured by the staff, then the limiting screw is twisted to adjust the distance of the telescopic column one, the telescopic column one is fixed by twisting the limiting screw in the opposite direction after the adjustment is completed, then the device is lowered to the position suitable for the staff to work, the rotating column one drives the rotating plate to rotate through the fixing frame by the starting of the motor, the rotating of the rotating plate drives the hydraulic telescopic cylinder one on the fixed rod two to move, the movement of the hydraulic telescopic cylinder one drives the telescopic column one to move synchronously, after the device continuously extends, the rotating column two preferentially contacts the inner wall of the shaft because the length of the telescopic column one is greater than that of the top block, the telescopic column one is moved in the opposite direction of the inner wall of the shaft under the continuous pushing of the top block, the movement of the hydraulic telescopic cylinder one drives the liquid in the hydraulic telescopic cylinder one to be transported into the hydraulic telescopic cylinder two through the connecting pipe one, the increase of the liquid in the hydraulic telescopic cylinder two drives the push block to push towards the center of the device, the push block is obliquely arranged and is in contact with the lower pressing ring, so that the lower pressing ring is pushed downwards, the moving block two at the bottom of the lower pressing ring is pushed under the limitation of the fixed ring, because the number of the positioning assemblies is several, the several steel bars can be simultaneously moved to complete positioning, the time spent in positioning the steel bars is reduced, the construction period is accelerated, the workload of the staff is reduced, and the problem that the positioning is incorrect due to fatigue of the staff during positioning is avoided.

[0007] Preferably, the rotating rod is provided with a rotating groove on the left side, a moving block one is rotatably connected to the inner wall of the rotating groove, a moving hole is formed on the front face of the moving block one, a fixed rod one is fixedly connected to the bottom of the rotating plate, the inner wall of the moving hole is in contact with the outer surface of the fixed rod one, a top block is fixedly connected to the right side of the moving block one, and the device is installed on the crane through the assembling frame, a plurality of steel bars are installed on the device, the device is lowered to a position suitable for operation of the staff, the rotating column one drives the rotating plate to rotate counterclockwise as a whole through the fixed frame by starting the motor, the fixed plate one is fixedly connected to the bottom of the assembling frame and cannot rotate when the rotating plate rotates as a whole, the rotating plate is connected to the rotating plate through the rotating rod, and the rotating rod rotates when the rotating plate rotates counterclockwise, the moving block one extends under the limitation of the fixed rod one, the top block is fixed to the moving block one and moves synchronously with the moving block one, the outer wall of the top block is supported on the inner wall of the shaft, the device is fixed as a whole, the device is more stable, the device does not shake when the staff operates the steel bar subsequently, the distance between the steel bar and the inner wall of the shaft is not accurately positioned, and the construction problem is affected.

[0008] Preferably, the number of positioning assemblies is two, the two hydraulic telescopic cylinders two are symmetrically arranged with the assembling frame as the center, the bottom of the hydraulic telescopic cylinder one is fixedly connected to the top of the fixed ring, a hole groove is formed in the right side of the moving block two, the inner wall of the hole groove is in contact with the annular spring, and a limiting groove is formed in the temple of the telescopic column one.

[0009] Preferably, the number of limiting grooves is several, the several limiting grooves are arranged in a horizontal array, the telescopic column one is rotatably connected to the rotating column two on the right side, the front face of the telescopic column one is threadedly connected to the limiting screw, and a trapezoidal groove is formed in the top of the moving block two.

[0010] Preferably, the rotating plate is provided with a clamping assembly above, the number of clamping assemblies is several, the parts contained in the several clamping assemblies are all the same, the clamping assembly comprises a limiting rod, the limiting rod is in contact with the top of the moving block two, the moving block two is fixedly connected to the telescopic column two on the left side, the right side of the inner wall of the slot is fixedly connected to the tension spring, and the left side of the telescopic column two is fixedly connected to the front face of the inner wall of the slot.

[0011] Preferably, the right side of the tension spring is fixedly connected to the side of the telescopic column two near the limiting rod. The inner wall of the trapezoidal groove contacts the limiting block. A gripper is fixedly connected to the top of the limiting block. The left side of the gripper is slidably connected to the outer surface of the limiting rod. There are two grippers, which are symmetrically arranged around the telescopic column two. An assembly gripper is fixedly connected to the inner wall of the assembly hole. In this invention, the moving block two is moved by the downward pressure of the pressure ring. Since the top of the moving block two has a trapezoidal groove, when it moves outward, the two matching limiting blocks will drive the two grippers to move in opposite directions. Continuous movement will cause the two grippers to contact the assembly gripper that is pre-installed. The reinforcing bar is secured by a tension spring on the back of the limiting rod, which is fixedly connected to the inner wall of the slot in the fixing ring. When the clamping claws hold the reinforcing bar and move it to a position where it can no longer move, and it is then moved by the second moving block, the tension springs exert a pulling force on the limiting rod. This makes the clamping of the reinforcing bar by the two claws more stable under the constraint of the trapezoidal slot. With continuous movement, the two claws will also cause the reinforcing bar to disengage from the constraint of the first clamping claw. This makes the device more stable when positioning the reinforcing bar, preventing the risk of the reinforcing bar falling during movement and positioning, and effectively protecting the safety of the workers.

[0012] Preferably, a bending assembly is provided below the rotating plate. The number of bending assemblies is several, and the several bending assemblies are arranged in a circular array. The several bending assemblies contain the same parts. The bending assembly includes a fixed plate two. The top of the fixed plate two is fixedly connected to the bottom of the rotating plate. A telescopic cylinder one is fixedly connected to the back of the fixed plate two. A connecting pipe two is fixedly connected to the back of the telescopic cylinder one. A telescopic cylinder two is fixedly connected to the side of the connecting pipe two away from the telescopic cylinder one.

[0013] Preferably, a rotating wheel rod is rotatably connected to the top of the side of the telescopic cylinder 2 away from the connecting pipe 2. A limit post is fixedly connected to the top of the rotating wheel rod. A connecting plate is fixedly connected to the bottom of the top block. A slide rail is formed at the bottom of the connecting plate, and the inner wall of the slide rail contacts the outer surface of the limit post. Two assembly claws are fixedly connected to the bottom of the connecting plate. The two assembly claws are symmetrically arranged. In this invention, the movement of the top block will cause the side of the telescopic cylinder 1 away from the fixed plate 2 to move towards the fixed plate 2. Since its interior is filled with liquid, continuous movement will cause the liquid inside to enter the interior of the telescopic cylinder 2 through the connecting pipe 2. The increase in liquid in the telescopic cylinder 2 will cause it to move the two rotating rods. Since the bottom of the connecting plate has a slide that matches the limiting post, it will rotate in the preset direction of the slide when the telescopic cylinder 2 pushes the rotating rods to move. The rotation of the two rotating rods will push the steel bars that are fixed on the two mounting claws 2 in advance along the preset slide direction, and bend them to fit against the inner wall of the shaft. This makes it convenient for the steel bars and the vertical steel bars to be directly operated. Compared with the previous manual bending, it not only saves a lot of time, but also makes it more convenient for the staff to operate and reduces the workload of the staff.

[0014] The present invention has the following beneficial effects:

[0015] (1) In this invention, after the worker measures the distance between a steel bar and the inner wall of the shaft, the limiting thread is tightened to adjust the distance of the first telescopic column. After the adjustment is completed, the limiting thread is tightened in the opposite direction to fix the first telescopic column. Then, the entire device is lowered to a suitable position for the worker to carry out the construction. The motor is started to make the first rotating column rotate through the fixed frame to drive the rotating plate to rotate. The rotation of the rotating plate will cause the top block to drive the first hydraulic telescopic cylinder on the second fixed rod to move. The movement of the first hydraulic telescopic cylinder will drive the first telescopic column to move synchronously. After the device continues to extend, since the length of the first telescopic column is greater than that of the top block, the second rotating column will first contact the inner wall of the shaft. Under the continuous push of the top block, the first telescopic column will push the first hydraulic telescopic cylinder into the shaft. The movement of the hydraulic telescopic cylinder 1 in the opposite direction of the wall causes the liquid inside to be transported into the hydraulic telescopic cylinder 2 through the connecting pipe 1. The increase in liquid in the hydraulic telescopic cylinder 2 causes it to drive the push block towards the center of the device. Since the push block is set at an angle and is in contact with the lower pressure ring, it will push the lower pressure ring downward. The downward pushing of the lower pressure ring will push the moving block 2, which is adapted to its bottom inclined surface, under the restriction of the fixed ring. Since there are several positioning components, several steel bars can be moved at the same time, so that several steel bars can be positioned. This reduces the time spent on positioning steel bars, speeds up the construction period, reduces the workload of workers, and avoids the problem of positioning errors caused by worker fatigue.

[0016] (2) In this invention, after the entire device is installed on the crane using an assembly frame, several steel bars are installed on the device. Then, the entire device is lowered to a position suitable for workers to operate. The motor is started to cause the rotating column one to rotate counterclockwise through the fixed frame. Since the fixed plate one is fixedly connected to the bottom of the assembly frame, it will not rotate when the entire rotating plate rotates. Since the fixed plate one is connected to the rotating plate through a rotating rod, the rotating rod will rotate when the rotating plate rotates counterclockwise. The rotation of the rotating rod will cause the moving block one to extend under the restriction of the fixed rod one. Since the top block is fixed on the moving block one, it will move synchronously when the top block moves until it contacts the inner wall of the shaft, so that its outer wall is supported on the inner wall of the shaft, thus fixing the entire device and making the device more stable. This avoids the device shaking when workers perform subsequent operations on the steel bars, which would lead to inaccurate positioning of the distance between the steel bars and the inner wall of the shaft, affecting the construction.

[0017] (3) The present invention moves the second moving block by pressing down the lowering ring. Since the top of the second moving block has a trapezoidal groove, when it moves outward, the two matching limiting blocks will drive the two grippers to move in opposite directions. The continuous movement will cause the two grippers to contact the steel bar that is pre-installed on the first assembly gripper. Since the back of the limiting rod is provided with a tension spring, and the tension spring is fixedly connected to the inner wall of the groove opened by the fixed ring, the tension spring will generate a pulling force on the limiting rod after the gripper clamps the steel bar and moves to a position where it can no longer move, and is driven by the second moving block. This makes the gripping of the steel bar by the two grippers more stable under the restriction of the trapezoidal groove. Under the continuous movement, the two grippers will also drive the steel bar to disengage from the restriction of the first assembly gripper, so that the device can be more stable when moving the steel bar for positioning, avoiding the hidden danger of the steel bar falling off during the movement and positioning, and effectively protecting the work safety of the workers.

[0018] (4) The present invention moves the side of the telescopic cylinder away from the fixed plate 2 towards the fixed plate 2 by moving the top block. Since its interior is filled with liquid, the continuous movement will cause the liquid inside to enter the interior of the telescopic cylinder 2 through the connecting pipe 2. The increase of liquid in the telescopic cylinder 2 will cause it to drive the two rotating rods to move. Since the bottom of the connecting plate is provided with a slide that is compatible with the limiting post, it will rotate in the preset direction of the slide when the telescopic cylinder 2 pushes the rotating rods to move. The rotation of the two rotating rods will push the steel bars that are fixed in advance on the two mounting claws 2 along the preset slide direction and bend them to fit against the inner wall of the shaft. This makes it convenient for the steel bars and the vertical steel bars to be directly operated. Compared with the previous manual bending, it not only saves a lot of time, but also makes it more convenient for the staff to operate and reduces the workload of the staff. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention;

[0022] Figure 3 For the present invention Figure 2 A magnified structural diagram of A in the middle;

[0023] Figure 4 This is a schematic diagram of the positioning component of the present invention;

[0024] Figure 5 For the present invention Figure 4 A magnified structural diagram of B in the diagram;

[0025] Figure 6 This is a schematic diagram of the clamping component of the present invention;

[0026] Figure 7 This is a schematic diagram of the bending assembly of the present invention;

[0027] Figure 8 For the present invention Figure 7 A magnified structural diagram of C.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] In the diagram: 1. Assembly frame; 11. Fixed plate one; 12. Rotating plate; 121. Fixed ring; 13. Motor; 131. Rotating column one; 132. Fixed frame; 2. Fixed assembly; 21. Rotating rod; 211. Moving block one; 212. Top block; 22. Fixed rod one; 3. Positioning assembly; 31. Fixed rod two; 32. Hydraulic telescopic cylinder one; 321. Connecting pipe one; 33. Hydraulic telescopic cylinder two; 331. Push block; 34. Lower pressure ring; 341. Moving block two; 342. Ring spring; 35. Telescopic column one; 351. Rotating column two; 36. Limiting thread; 4. Clamping assembly; 41. Limiting rod; 411. Gripper; 412. Limiting block; 42. Telescopic column two; 421. Tension spring; 43. Assembly claw one; 5. Bending assembly; 51. Fixing plate two; 511. Telescopic cylinder one; 512. Connecting pipe two; 52. Connecting plate; 521. Assembly claw two; 53. Telescopic cylinder two; 531. Rotating wheel rod; 532. Limiting column. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1, please refer to Figures 1-3 The present invention is a rebar positioning device for slipform construction of secondary lining of vertical shaft, comprising an assembly frame 1, a fixing plate 11 fixedly connected to the bottom of the assembly frame 1, a rotating plate 12 in contact with the outer wall of the fixing plate 11, a fixing ring 121 fixedly connected to the top of the rotating plate 12, a motor 13 fixedly connected to the top of the assembly frame 1, a rotating column 131 fixedly connected to the bottom of the motor 13 via a coupling, a fixing frame 132 fixedly connected to the outer surface of the rotating column 131, a groove opened on the outer wall of the fixing ring 121, and an assembly hole opened on the top of the rotating plate 12;

[0032] Fixed component 2, there are several fixed components 2, and the parts contained in several fixed components 2 are all the same. Fixed component 2 includes a rotating rod 21, and the top of the rotating rod 21 is rotatably connected to the bottom of the fixed plate 11 through a pin.

[0033] Positioning components 3, two in number, both comprising identical parts, include a second fixing rod 31. A fixing hole is formed on the right side of the second fixing rod 31, and a first hydraulic telescopic cylinder 32 is fixedly connected to the inner wall of the fixing hole. A first connecting pipe 321 is fixedly connected to the left side of the first hydraulic telescopic cylinder 32. A second hydraulic telescopic cylinder 33 is fixedly connected to the side of the first connecting pipe 321 away from the first hydraulic telescopic cylinder 32. A push block 331 is fixedly connected to the left side of the second hydraulic telescopic cylinder 33. The bottom of the push block 331 contacts a lower pressure ring 34, and the bottom of the lower pressure ring 34 contacts a second moving block 341. A telescopic column 35 is fixedly connected to the right side of column 32. The telescopic column 35 has a limiting thread 36 on its front. In this invention, after the worker measures the distance between a steel bar and the inner wall of the shaft, they then tighten the limiting thread 36 to adjust the distance of the telescopic column 35. After adjustment, the limiting thread 36 is tightened in the opposite direction to fix the telescopic column 35. The entire device is then lowered to a suitable position for the worker to operate. The motor 13 is then activated, causing the rotating column 131 to rotate via the fixing frame 132, which in turn drives the rotating plate 12 to rotate. The rotation of the rotating plate 12 causes the top block 212 to drive the fixing rod 31. The hydraulic telescopic cylinder 32 moves, which in turn drives the telescopic column 35 to move synchronously. After the device extends, because the length of the telescopic column 35 is greater than that of the top block 212, the rotating column 351 will preferentially contact the inner wall of the shaft. Under the continuous push of the top block 212, the telescopic column 35 will push the hydraulic telescopic cylinder 32 to move in the opposite direction to the inner wall of the shaft. The movement of the hydraulic telescopic cylinder 32 will cause the liquid inside it to be transported into the hydraulic telescopic cylinder 33 through the connecting pipe 321. The increase in liquid in the hydraulic telescopic cylinder 33 will cause it to drive the pusher block 331. Pushing towards the center of the device, since the pusher 331 is angled and fits against the lower pressure ring 34, it will push the lower pressure ring 34 downward. The downward-pushing lower pressure ring 34 will push the moving block 341, which is adapted to its bottom inclined surface, under the restriction of the fixed ring 121. Since there are several positioning components 3, several steel bars can be moved at the same time, so that several steel bars can be positioned. This reduces the time spent on positioning steel bars, speeds up the construction period, reduces the workload of workers, and avoids the problem of positioning errors caused by workers' fatigue.

[0034] A rotating groove is provided on the left side of the rotating rod 21, and a moving block 211 is rotatably connected to the inner wall of the rotating groove. A moving hole is provided on the front of the moving block 211. A fixed rod 22 is fixedly connected to the bottom of the rotating plate 12. The inner wall of the moving hole is in contact with the outer surface of the fixed rod 22. A top block 212 is fixedly connected to the right side of the moving block 211. After the device is installed on the crane by the assembly frame 1, several steel bars are installed on the device. Then, the device is lowered to a position suitable for operation by the staff. The starting of the motor 13 causes the rotating column 131 to drive the rotating plate 12 to rotate counterclockwise through the fixed frame 132. Since the fixed plate 11 is fixedly connected to the bottom of the assembly frame 1, the rotating plate 12 rotates as a whole. The fixed plate 11 will not rotate. Since the fixed plate 11 is connected to the rotating plate 12 via the rotating rod 21, the rotating rod 21 will rotate when the rotating plate 12 rotates counterclockwise. The rotation of the rotating rod 21 will cause the moving block 211 to extend under the restriction of the fixed rod 22. Since the top block 212 is fixed on the moving block 211, it will move synchronously when the top block 212 moves until it contacts the inner wall of the shaft, so that its outer wall is supported on the inner wall of the shaft, thus fixing the whole device and making the device more stable. This will prevent the device from shaking when the workers perform subsequent operations on the steel bars, which would lead to inaccurate positioning of the distance between the steel bars and the inner wall of the shaft, affecting the construction.

[0035] Example 2, please refer to Figures 4-8 The present invention is a rebar positioning device for slipform construction of secondary lining of vertical shaft. Based on the first embodiment, the number of positioning components 3 is two. Two hydraulic telescopic cylinders 33 are symmetrically arranged with the assembly frame 1 as the center. The bottom of the hydraulic telescopic cylinder 32 is fixedly connected to the top of the fixing ring 121. The moving block 341 has a slot on the right side. The inner wall of the slot contacts a ring spring 342. The telescopic column 35 has a limit groove at its temporal part.

[0036] The number of limiting slots is several, and the limiting slots are arranged in a horizontal array. The right side of the telescopic column 1 35 is connected to the rotating column 2 351. The front of the telescopic column 1 35 is threadedly connected to the limiting thread 36. The top of the moving block 2 341 is provided with a trapezoidal groove.

[0037] A clamping assembly 4 is provided above the rotating plate 12. There are several clamping assemblies 4, and the parts contained in the several clamping assemblies 4 are all the same. The clamping assembly 4 includes a limit rod 41, which is in contact with the top of the moving block 2 341. A telescopic column 2 42 is fixedly connected to the left side of the moving block 2 341, and a tension spring 421 is fixedly connected to the right side of the inner wall of the slot. The left side of the telescopic column 2 42 is fixedly connected to the front of the inner wall of the slot.

[0038] The right side of the tension spring 421 is fixedly connected to the side of the telescopic column 42 near the limiting rod 41. The inner wall of the trapezoidal groove contacts the limiting block 412. A gripper 411 is fixedly connected to the top of the limiting block 412. The left side of the gripper 411 is slidably connected to the outer surface of the limiting rod 41. There are two grippers 411, which are symmetrically arranged with the telescopic column 42 as the center. An assembly gripper 43 is fixedly connected to the inner wall of the assembly hole. In this invention, the moving block 341 is moved by the downward pressure of the pressing ring 34. Since the top of the moving block 341 has a trapezoidal groove, when it moves outward, the two matching limiting blocks 412 will drive the two grippers 411 to move in opposite directions. Continuous movement will cause the two grippers 411 to contact the pre-positioned limit block 412. The reinforcing bar installed on the assembly claw 43 is secured by a tension spring 421 on the back of the limiting rod 41, which is fixedly connected to the inner wall of the slot in the fixing ring 121. When the claw 411 clamps the reinforcing bar and moves to a position where it can no longer move, and is then moved by the moving block 341, the tension spring 421 exerts a pulling force on the limiting rod 41. This makes the clamping of the reinforcing bar by the two claws 411 more stable under the constraint of the trapezoidal slot. With continuous movement, the two claws 411 will also cause the reinforcing bar to disengage from the constraint of the assembly claw 43, making the device more stable when positioning the reinforcing bar and preventing the reinforcing bar from falling during movement and positioning, effectively protecting the safety of the workers.

[0039] A bending assembly 5 is provided below the rotating plate 12. There are several bending assemblies 5 arranged in a circular array. All the bending assemblies 5 contain the same parts. The bending assembly 5 includes a second fixing plate 51. The top of the second fixing plate 51 is fixedly connected to the bottom of the rotating plate 12. A first telescopic cylinder 511 is fixedly connected to the back of the second fixing plate 51. A second connecting pipe 512 is fixedly connected to the back of the first telescopic cylinder 511. A second telescopic cylinder 53 is fixedly connected to the side of the second connecting pipe 512 away from the first telescopic cylinder 511.

[0040] A rotating wheel rod 531 is rotatably connected to the top of the side of the telescopic cylinder 53 away from the connecting pipe 512. A limit post 532 is fixedly connected to the top of the rotating wheel rod 531. A connecting plate 52 is fixedly connected to the bottom of the top block 212. A slide is provided at the bottom of the connecting plate 52, and the inner wall of the slide is in contact with the outer surface of the limit post 532. Two assembly claws 521 are fixedly connected to the bottom of the connecting plate 52. The two assembly claws 521 are symmetrically arranged. By moving the top block 212, the telescopic cylinder 511 away from the fixed plate 51 will move towards the fixed plate 51. Since its interior is filled with liquid, continuous movement will cause the liquid inside to flow through the connecting pipe 512. Upon entering the interior of the telescopic cylinder 53, the increase in liquid within the cylinder causes it to move the two rotating rods 531. Since the bottom of the connecting plate 52 has a slide that matches the limiting post 532, the rotating rods 531 will rotate in the preset direction of the slide when the telescopic cylinder 53 pushes the rotating rods 531. The rotation of the two rotating rods 531 will push the steel bars that are pre-fixed on the two mounting claws 521 along the preset slide direction, causing them to bend and fit against the inner wall of the shaft. This allows the steel bars and vertical steel bars to be directly operated in subsequent operations. Compared to the previous manual bending, this not only saves a lot of time but also makes the operation more convenient for workers and reduces their workload.

[0041] A specific application of this embodiment is as follows: After the entire device is installed on the crane using the assembly frame 1, several steel bars are then installed on the device. Subsequently, the entire device is lowered to a position suitable for operation by the staff. The motor 13 is then activated, causing the rotating column 131 to rotate counterclockwise via the fixed frame 132, driving the rotating plate 12 to rotate counterclockwise. Since the fixed plate 11 is fixedly connected to the bottom of the assembly frame 1, it does not rotate when the rotating plate 12 rotates. Because the fixed plate 11 is connected to the rotating plate 12 via the rotating rod 21, the rotating plate 12... When rotated counterclockwise, the rotating rod 21 will rotate. The rotation of the rotating rod 21 will cause the moving block 211 to extend under the restriction of the fixed rod 22. Since the top block 212 is fixed on the moving block 211, it will move synchronously with the moving block 211 until the top block 212 contacts the inner wall of the shaft, so that its outer wall is supported on the inner wall of the shaft, thus fixing the whole device and making the device more stable. This will prevent the device from shaking when the workers perform subsequent operations on the steel bars, which would lead to inaccurate positioning of the distance between the steel bars and the inner wall of the shaft and affect the construction.

[0042] After measuring the distance between a steel bar and the inner wall of the shaft, the worker then tightened the limiting thread 36 to adjust the distance of the telescopic column 35. After adjustment, the limiting thread 36 was tightened in the opposite direction to fix the telescopic column 35. The entire device was then lowered to a suitable position for the worker to work. The motor 13 was started, causing the rotating column 131 to rotate through the fixing frame 132 and drive the rotating plate 12 to rotate. The rotation of the rotating plate 12 caused the top block 212 to move the hydraulic telescopic cylinder 32 on the fixing rod 31. The movement of the hydraulic telescopic cylinder 32 caused the telescopic column 35 to move synchronously. After the device was extended, because the length of the telescopic column 35 was greater than that of the top block 212, the rotating column 351 would first contact the inner wall of the shaft. Under the continuous push of the top block 212, the telescopic column 35 would push the hydraulic telescopic cylinder 35. 2. Moving in the opposite direction to the inner wall of the shaft, the movement of the hydraulic telescopic cylinder 32 causes the liquid inside to be transported into the hydraulic telescopic cylinder 33 through the connecting pipe 321. The increase in liquid in the hydraulic telescopic cylinder 33 causes it to drive the push block 331 towards the center of the device. Since the push block 331 is set at an angle and is in contact with the lower pressure ring 34, it will push the lower pressure ring 34 downward. The downward pushing of the lower pressure ring 34 will push the moving block 341, which is adapted to its bottom inclined surface, under the restriction of the fixed ring 121. Since there are several positioning components 3, several steel bars can be moved at the same time, so that several steel bars can be positioned. This reduces the time spent on positioning steel bars, speeds up the construction period, reduces the workload of workers, and avoids the problem of positioning errors caused by worker fatigue.

[0043] The downward pressure of the lowering ring 34 causes the moving block 341 to move. Since the top of the moving block 341 has a trapezoidal groove, its outward movement causes two matching limiting blocks 412 to move the two grippers 411 in opposite directions. Continuous movement causes the two grippers 411 to contact the reinforcing bars pre-installed on the assembly gripper 43. Because the limiting rod 41 has a tension spring 421 on its back, which is fixedly connected to the inner wall of the slot in the fixing ring 121, the grippers 411 can contact the reinforcing bars. After the reinforcing bar is clamped and moved to a position where it can no longer move, and is driven by the second moving block 341, the tension spring 421 will exert a pulling force on the limiting rod 41, making the clamping of the reinforcing bar by the two grippers 411 more stable under the restriction of the trapezoidal groove. Under continuous movement, the two grippers 411 will also drive the reinforcing bar to disengage from the restriction of the first assembly claw 43, making the device more stable when moving the reinforcing bar for positioning, avoiding the risk of the reinforcing bar falling off during the movement and positioning, and effectively protecting the work safety of the staff.

[0044] The movement of the top block 212 causes the telescopic cylinder 511 to move away from the fixed plate 51 towards the fixed plate 51. Since its interior is filled with liquid, the continuous movement causes the liquid inside to enter the interior of the telescopic cylinder 53 through the connecting pipe 512. The increase in liquid in the telescopic cylinder 53 causes it to drive the two rotating rods 531 to move. Since the bottom of the connecting plate 52 has a slide that matches the limiting post 532, the telescopic cylinder 53 will rotate in the preset direction of the slide when it pushes the rotating rods 531 to move. The rotation of the two rotating rods 531 will push the steel bars that are fixed on the two mounting claws 521 in advance along the preset slide direction, and bend them to fit against the inner wall of the shaft. This makes it convenient for the steel bars and the vertical steel bars to be directly operated. Compared with the previous manual bending, this not only saves a lot of time, but also makes it more convenient for the workers to operate and reduces their workload.

[0045] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A rebar positioning device for slipform construction of secondary lining of a vertical shaft, comprising an assembly frame (1), wherein a fixing plate (11) is fixedly connected to the bottom of the assembly frame (1), a rotating plate (12) is in contact with the outer wall of the fixing plate (11), a fixing ring (121) is fixedly connected to the top of the rotating plate (12), a motor (13) is fixedly connected to the top of the assembly frame (1), a rotating column (131) is fixedly connected to the bottom of the motor (13) via a coupling, a fixing frame (132) is fixedly connected to the outer surface of the rotating column (131), a slot is provided on the outer wall of the fixing ring (121), and an assembly hole is provided on the top of the rotating plate (12), characterized in that: The fixing component (2) is a plurality of such fixing components (2), and the plurality of such fixing components (2) contain the same parts. The fixing component (2) includes a rotating rod (21), and the top of the rotating rod (21) is rotatably connected to the bottom of the fixing plate (11) by a pin. Positioning component (3), the number of positioning components (3) is two, the two positioning components (3) include the same parts, the positioning component (3) includes a fixing rod two (31), the fixing rod two (31) has a fixing hole on the right side, the fixing hole has a hydraulic telescopic cylinder one (32) fixedly connected to the inner wall of the fixing hole, the hydraulic telescopic cylinder one (32) has a connecting pipe one (321) fixedly connected to the left side of the hydraulic telescopic cylinder one (32), the connecting pipe one (321) has a hydraulic telescopic cylinder two (33) fixedly connected to the side away from the hydraulic telescopic cylinder one (32), the hydraulic telescopic cylinder two (33) has a push block (331) fixedly connected to the left side of the hydraulic telescopic cylinder two (33), the bottom of the push block (331) contacts a pressure ring (34), the bottom of the pressure ring (34) contacts a moving block two (341), the right side of the hydraulic telescopic cylinder one (32) has a telescopic column one (35) fixedly connected, the telescopic column one (35) has a limit thread (36) on the front side; The rotating rod (21) has a rotating groove on its left side. A moving block (211) is rotatably connected to the inner wall of the rotating groove. A moving hole is opened on the front of the moving block (211). A fixing rod (22) is fixedly connected to the bottom of the rotating plate (12). The inner wall of the moving hole is in contact with the outer surface of the fixing rod (22). A top block (212) is fixedly connected to the right side of the moving block (211). Two hydraulic telescopic cylinders (33) are symmetrically arranged with the assembly frame (1) as the center. The bottom of the hydraulic telescopic cylinder (32) is fixedly connected to the top of the fixed ring (121). The moving block (341) has a slot on the right side. The inner wall of the slot is in contact with a ring spring (342). The telescopic column (35) has a limit groove at its temporal part. The number of the limiting grooves is several, and the several limiting grooves are arranged in a horizontal array. The right side of the telescopic column one (35) is rotatably connected to the rotating column two (351). The front of the telescopic column one (35) is threadedly connected to the limiting thread (36). The top of the moving block two (341) is provided with a trapezoidal groove.

2. The rebar positioning device for slipform construction of secondary lining of a vertical shaft according to claim 1, characterized in that: A clamping assembly (4) is provided above the rotating plate (12). There are several clamping assemblies (4), and the parts contained in several clamping assemblies (4) are all the same. The clamping assembly (4) includes a limit rod (41). The limit rod (41) is in contact with the top of the moving block two (341). A telescopic column two (42) is fixedly connected to the left side of the moving block two (341). A tension spring (421) is fixedly connected to the right side of the inner wall of the slot. The left side of the telescopic column two (42) is fixedly connected to the front of the inner wall of the slot.

3. A rebar positioning device for slipform construction of secondary lining of a vertical shaft according to claim 2, characterized in that: The right side of the tension spring (421) is fixedly connected to the side of the telescopic column two (42) near the limiting rod (41). The inner wall of the trapezoidal groove contacts the limiting block (412). The top of the limiting block (412) is fixedly connected to a claw (411). The left side of the claw (411) is slidably connected to the outer surface of the limiting rod (41). There are two claws (411). The two claws (411) are symmetrically arranged with the telescopic column two (42) as the center. The inner wall of the assembly hole is fixedly connected to an assembly claw one (43).

4. A rebar positioning device for slipform construction of secondary lining of a vertical shaft according to claim 3, characterized in that: Below the rotating plate (12) is a bending assembly (5). There are several bending assemblies (5), which are arranged in a circular array. The bending assemblies (5) contain the same parts. The bending assembly (5) includes a second fixing plate (51). The top of the second fixing plate (51) is fixedly connected to the bottom of the rotating plate (12). The back of the second fixing plate (51) is fixedly connected to a first telescopic cylinder (511). The back of the first telescopic cylinder (511) is fixedly connected to a second connecting pipe (512). The side of the second connecting pipe (512) away from the first telescopic cylinder (511) is fixedly connected to a second telescopic cylinder (53).

5. A rebar positioning device for slipform construction of secondary lining of a vertical shaft according to claim 4, characterized in that: The top of the telescopic cylinder 2 (53) away from the connecting pipe 2 (512) is rotatably connected to a rotating rod (531). The top of the rotating rod (531) is fixedly connected to a limiting post (532). The bottom of the top block (212) is fixedly connected to a connecting plate (52). The bottom of the connecting plate (52) is provided with a slide. The inner wall of the slide is in contact with the outer surface of the limiting post (532). The bottom of the connecting plate (52) is fixedly connected to an assembly claw 2 (521). There are two assembly claws 2 (521), and the two assembly claws 2 (521) are symmetrically arranged.

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