Frame beam column steel bar protection layer positioning device and method

Abstract

The invention relates to a frame beam column steel bar protection layer positioning device and method.The frame beam column steel bar protection layer positioning device comprises a first positioning assembly, a second positioning assembly, a connecting assembly and a fixing assembly, and each of the first positioning assembly and the second positioning assembly comprises a driving shaft, a follow-up shaft, a transmission seat and a clamping sleeve; transmission seats are respectively arranged at two ends of the driving shaft; a driving handle is arranged at one end of the driving shaft; one end of the follow-up shaft is arranged on the transmission seat and is in transmission connection with the driving shaft, so that the follow-up shaft can rotate along with the driving shaft; the clamping sleeve is arranged on the driving shaft and the driven shaft and is provided with a clamping groove; the connecting assembly comprises a connecting base and center blocks, the center blocks are rotationally arranged on the two sides of the connecting base, and the other end of the follow-up shaft is connected to the center blocks. The fixing assembly comprises a fixing plate, and the fixing plate is arranged on the transmission seat. According to the overturning device, overturning and positioning of the clamping sleeve are achieved through mechanical transmission, manual operation is reduced, the construction difficulty is lowered, and the construction uniformity of the frame column protective layer is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and particularly relates to a positioning device and method for the steel bar protective layer of frame beam columns. Background Art

[0002] In construction engineering, the construction of positioning bars for frame columns is a key link to ensure the structural stability and safety. At present, the common construction method is to place cushion blocks inside the column formwork to support the positioning bars before concrete pouring, and fix them with column stirrups above the concrete surface. However, this method often faces many challenges in actual construction. Especially during the concrete pouring process, the vibration of the vibrator is likely to cause the supporting cushion blocks to fall off, thus leading to the displacement of the main bars of the frame column. This displacement will not only result in uneven thickness of the protective layer on the four sides of the frame column, but may also cause serious deviation, thus affecting the overall stability and safety of the structure.

[0003] The problem of the displacement of the main bars of the frame column will not only affect the appearance quality of the structure, but may also lead to a decrease in the bearing capacity of the structure, increasing potential safety hazards. In response to this problem, conventional treatment methods include roughening, implanting steel bars, laying wire meshes, formwork installation, concrete pouring, and plastering. However, these methods are not only time-consuming and laborious, but the treatment effects are often unsatisfactory. Especially in ensuring the uniformity of the thickness of the protective layer on the four sides of the frame column, the conventional practices are difficult to achieve ideal effects. After the concrete pouring is completed, it is often found during the measurement and setting out that the sizes of the four sides are different, which not only affects the installation of the positioning bars of the frame column, but also brings difficulties to the installation of the formwork, becoming a key quality control point during the structural construction period.

[0004] Therefore, the current conventional practices cannot well achieve the uniformity of the thickness of the protective layer on the four sides of the frame column. After the concrete pouring is completed and the measurement and setting out are carried out, the sizes of the four sides are different, affecting the installation of the positioning bars of the frame column and the installation of the formwork. Based on this, it is necessary to study a positioning device and method for the steel bar protective layer of frame beam columns. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a positioning device and method for the steel bar protective layer of frame beam columns, which effectively solves the problem that the existing positioning structure is easy to fall off and displace, resulting in poor uniformity of the thickness of the protective layer on the four sides of the frame column.

[0006] To achieve the above object, the technical solution adopted by the present invention is: a positioning device for the steel bar protective layer of a frame beam-column, including a first positioning component, a second positioning component, a connection component and a fixing component. The first positioning component and the second positioning component are correspondingly arranged on both sides of the connection component and form a positioning frame structure. The first positioning component and the second positioning component both include a driving shaft, a follower shaft, a transmission seat and a clamping sleeve. Transmission seats are respectively arranged at both ends of the driving shaft, and a driving handle is arranged at one end of the driving shaft to enable the driving shaft to rotate in the transmission seat. One end of the follower shaft is arranged on the transmission seat and is in transmission connection with the driving shaft to enable the follower shaft to rotate following the driving shaft. The clamping sleeve is arranged on the driving shaft and the follower shaft and is provided with a clamping groove. The connection component includes a connection seat and a central block. Central blocks are rotatably arranged on both sides of the connection seat, and the other end of the follower shaft is connected to the central block. The fixing component includes a fixing plate, and the fixing plate is arranged on the transmission seat.

[0007] Further, a positioning seat is arranged in the middle of the driving shaft, a rotating block is rotatably arranged in the middle of the positioning seat, the driving shaft is fixed on the rotating block, and the fixing plate is arranged on the positioning seat.

[0008] Further, connection studs are arranged at both ends of the rotating block, a connecting plate is arranged on the driving shaft, and the connecting plate is fixed on the connection stud by a nut.

[0009] Further, one or two limiting grooves are arranged in the connection seat, the central block is rotatably arranged in the limiting groove, a connection stud is arranged on the outer side of the central block, a connecting plate is arranged on the driving shaft, and the connecting plate is fixed on the connection stud by a nut.

[0010] Further, the driving shaft is in transmission connection with the follower shaft through a bevel gear set.

[0011] Further, the clamping sleeve is slidably sleeved on the driving shaft and the follower shaft, a locking wire is arranged on the side surface of the clamping sleeve to enable the position of the clamping sleeve to be changed and fixed by the locking wire.

[0012] Further, the clamping groove is in a trapezoidal opening with a gradually expanding opening.

[0013] Further, fixing holes are arranged on the fixing plate, and the fixing holes are round holes.

[0014] Further, a telescopic rod is arranged between the base and the fixing plate, and both ends of the telescopic cylinder are hinged to the base and the fixing plate.

[0015] A positioning method for the steel bar protective layer of a frame beam-column, using the above positioning device for the steel bar protective layer of a frame beam-column, includes the following steps: Step 1: Bundle steel bars based on the construction drawings of the frame column. Step 2: Support segmented formwork on the outside of the frame column steel bars; a base is provided at the top of the frame column formwork. Step 3: Using the connecting seat as the connection foundation, combine the U-shaped first positioning component and the second positioning component on the connecting seat. Step 4: Rotate the two driving shafts, and the follower shafts rotate synchronously. Make the collets configured on the driving shafts and the follower shafts swing from the area outside the frame column steel bars towards the frame column steel bars, ensuring that the slots of the collets are clamped onto the corresponding main steel bars from the outside. Step 5: Fix the fixing plate on the base according to the preset position. Step 6: Pour concrete. After the concrete begins to set, rotate the driving shafts in the reverse direction, so that the collets swing outwards from the main steel bars and disengage from the main steel bars. Step 7: Demolish the connection structure between the fixing plate and the base, and remove the formwork. Step 8: Using the formed frame column as the foundation, move the formwork upwards, and repeat Steps 2 to 7.

[0016] The beneficial effects of the above technical solution are as follows: Aiming at the problems existing in the traditional construction of frame columns, such as the easy falling off of support pads, the displacement of main steel bars, and the uneven thickness of the protective layer, the present invention provides a combined positioning frame structure. This structure can be combined by buckling to form a square-shaped positioning structure. This structure has two independent driving ends. One driving end drives a driving shaft and two follower shafts to rotate. Through the rotation action, the synchronous flipping action of the collets is realized. Through the flipping action, the collets enter the frame column steel bars from the outside to clamp the frame column steel bars. Through flipping, it can flip outwards, disengage from the frame column steel bars, and can move vertically to change the construction point.

[0017] The present invention forms a rectangular frame by buckling the U-shaped first positioning component and the second positioning component, and tightly clamps with the frame column steel bars to ensure that the main steel bars maintain a fixed position during the pouring process. The collets are flipped through the transmission of the driving shafts and the follower shafts, and can firmly clamp the main steel bars to avoid displacement. Significantly improves the positioning accuracy of the main steel bars of the frame column, ensures uniform structural stress, and enhances the overall stability and safety.

[0018] Utilize the transmission connection of the driving shafts and the follower shafts to realize the flipping of the collets, quickly complete the clamping or disengagement of the positioning frame and the main steel bars. The positioning frame can be integrally moved to the next construction point without complete disassembly, simplifies the operation process, greatly improves the construction efficiency, reduces the manual operation time, and reduces the construction cost.

[0019] At the same time, adjust the thickness of the protective layer through the telescopic rod, further enhancing the adaptability of the device. For this telescopic rod structure, similarly, changing the hinged ends of the telescopic rod to spherical hinges can realize the leveling of the positioning frame and at the same time realize the adjustment of the thickness of the protective layer.

[0020] Thus, the present invention realizes the flipping and positioning of the ferrule through mechanical transmission, reduces manual operation, lowers the construction difficulty, improves the uniformity of the construction of the framework column protective layer. At the same time, the structure of the present invention does not need to be disassembled as a whole, greatly improves the construction efficiency, and the positioning device is detachable and reusable, reducing material waste, having high practicability and popularization value, and can significantly improve the quality and efficiency of the framework column construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the schematic structural view of the embodiment of the present invention; Figure 2 is the schematic top view structure of the present invention; Figure 3 is the schematic front view structure of the present invention; Figure 4 is the schematic side view structure of the present invention; Figure 5 is the schematic front view structure of the action of the ferrule; Figure 6 is the schematic top view structure of the action of the ferrule; Figure 7 is the schematic transmission structure view of the follower shaft and the driving shaft; Figure 8 is the schematic implementation structure view of the connecting component; Figure 9 is the schematic implementation structure view of the positioning seat; Figure 10 is the use state diagram of the present invention; Figure 11 is the schematic implementation structure view of the ferrule; Figure 12 is the schematic implementation structure view of the telescopic rod.

[0022] Reference numerals: 1 - first positioning component, 2 - second positioning component, 3 - connecting component, 4 - driving shaft, 5 - transmission seat, 51 - one bevel gear, 52 - another bevel gear, 53 - connecting stud, 6 - driving handle, 7 - follower shaft, 8 - connecting seat, 81 - first central block, 82 - second central block, 83 - connecting stud, 9 - ferrule, 91 - card slot, 92 - trapezoidal opening, 10 - fixing plate, 11 - positioning seat, 111 - rotating block, 12 - main reinforcement, 13 - framework column steel bar area, 14 - framework column formwork, 15 - base, 16 - telescopic rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments: Embodiment 1. This embodiment aims to provide a positioning device for the steel bar protection layer of frame beam-columns, mainly used for the pouring construction of frame columns. In the current pouring process of concrete frame columns, during the vibration with a vibrator, it is easy for the supporting pads to fall off, resulting in the displacement of the main steel bars of the frame columns, uneven protection layers on the four sides of the frame columns, and serious problems such as difficulties for steel bar workers to correct column steel bars and for formwork workers to weld and reinforce positioning steel bars. This embodiment provides a positioning device for the steel bar protection layer of frame beam-columns.

[0024] Specifically, as shown in Figures 1-4 , a positioning device for the steel bar protection layer of frame beam-columns includes a first positioning component, a second positioning component, a connecting component, and a fixing component. As shown in Figure 2 , the first positioning component and the second positioning component are correspondingly arranged on both sides of the connecting component and form a positioning frame structure; in this embodiment, the structures of the first positioning component and the second positioning component are basically the same, and both are U-shaped structures. The two U-shaped positioning components are buckled and combined on the positioning component to form a rectangular frame, which is adapted to the shape of the frame column and provides a support basis for the steel bars of the frame column. The fixing component is used to fix the support basis on the top area of the frame column formwork.

[0025] In terms of structure, the structures of the first positioning component and the second positioning component are basically the same. Both include a driving shaft, a follower shaft, a transmission seat, and a bushing; in this embodiment, the driving shaft is a driving axle. Transmission seats are respectively arranged at both ends of the driving shaft, and a driving handle is arranged at one end of the driving shaft; so that the driving shaft rotates in the transmission seat, and the driving shaft provides active driving force through the driving handle and is rotationally configured in the transmission seat.

[0026] One end of the follower shaft is arranged on the transmission seat and is in transmission connection with the driving shaft so that the follower shaft can rotate following the driving shaft; in this embodiment, the follower shaft is a half-axle structure. One end of the half-axle penetrates into the transmission shaft and establishes a rotational linkage relationship with the driving shaft. When the driving shaft rotates, the follower shaft rotates synchronously. Preferably, their rotation amplitudes are the same; for the specific transmission relationship, in this embodiment, the driving shaft is in transmission connection with the follower shaft through a bevel gear set. The bevel gear set is used for structural transmission. Three through holes are counterweighted on the transmission seat. The driving shaft penetrates through two of the through holes and is rotationally connected to the through holes through bearings. The follower shaft is rotationally configured in the side through hole through a bearing. A bevel gear is connected to the end of the follower shaft, and another bevel gear is sleeved on the driving shaft. The two bevel gears are meshed to achieve the transmission connection between the driving shaft and the follower shaft.

[0027] The ferrule is arranged on the driving shaft and the follower shaft and is provided with a clamping groove; in this embodiment, the ferrule is fixed on the driving shaft and the follower shaft, so that it can flip along with them, enabling the ferrule to flip inwardly onto the frame column steel bars or flip outwardly away from the frame column steel bars. That is, in this embodiment, the combined positioning and removal of the positioning frame and the frame column steel bars can be achieved by flipping the driving shaft and the follower shaft. At the same time, the positioning frame is separated from the frame column steel bars and moves upward along the frame column steel bars to the next construction point. Thus, the separation of the positioning frame from the frame column steel bars can be realized without the need to disassemble the positioning frame as a whole, greatly improving the construction efficiency.

[0028] The connecting component includes a connecting seat and a central block. The central blocks are rotatably arranged on both sides of the connecting seat, and the other end of the follower shaft is connected to the central block; one or two limiting grooves are arranged in the connecting seat, and the central block is rotatably arranged in the limiting groove. A connecting stud is arranged on the outer side of the central block, and a connecting plate is arranged on the driving shaft. The connecting plate is fixed on the connecting stud through a nut. In this embodiment, the central block includes a first central block and a second central block. The follower shaft of the first positioning component is fixedly assembled on the first central block, and the follower shaft of the second positioning component is fixedly assembled on the second central block. The first central block and the second central block are separately configured and work independently, so that the two follower shafts act independently, and the driving shafts on both sides respectively drive the two semi-follower shafts to rotate.

[0029] The fixing component includes a fixing plate, and the fixing plate is arranged on the driving seat. In this embodiment, the fixing component is used to establish a fixed relationship with the frame column formwork and stabilize the positioning frame system with the frame column formwork as the support foundation. In a specific fixing method, in this embodiment, fixing holes are arranged on the fixing plate, and the fixing holes are round holes. Connecting columns are arranged on the base, and corresponding combined connection is achieved through bolts to realize the corresponding connection between the base and the fixing plate. In this embodiment, the frame column formwork is erected outside the steel bars and leveled to form a support foundation, and the positioning frame is fixed on this support foundation to provide support for the frame column formwork in stages.

[0030] In a further implementation structure, in order to increase the stabilizing points, in this embodiment, a positioning seat is arranged in the middle of the driving shaft, a rotating block is rotatably arranged in the middle of the positioning seat, the driving shaft is fixed on the rotating block, and a fixing plate is arranged on the positioning seat. Connecting studs are arranged at both ends of the rotating block, and a connecting plate is arranged on the driving shaft. The connecting plate is fixed on the connecting stud through a nut. In this embodiment, the structure can be disassembled through the positioning seat, and the U-shaped structure is disassembled into an L-shaped structure, so that the miniaturized decomposition of the structure can be realized, which is convenient for carrying and transportation.

[0031] Specifically, this embodiment adopts the above-mentioned positioning device for the steel bar protection layer of frame beam-columns, providing a complete construction method. From steel bar bundling to form removal, the steps are clear and definite. Through staged construction, the quality of each link is ensured to be controllable. The systematic construction method improves the controllability and quality of construction, and reduces the occurrence of quality problems.

[0032] A method for positioning the steel bar protection layer of frame beam-columns includes the following steps: Step 1: Bundle steel bars based on the construction drawings of frame columns; Step 2: Support segmented forms on the outside of the steel bars of the frame column; a base is provided at the top of the frame column form; Step 3: Using the connecting seat as the connection basis, combine the U-shaped first positioning component and the second positioning component on the connecting seat; Step 4: Rotate the two driving shafts, and the follower shafts rotate synchronously. Make the clamping sleeves arranged on the driving shafts and the follower shafts swing from the area outside the frame column steel bars towards the frame column steel bars, ensuring that the clamping grooves of the clamping sleeves are clamped on the corresponding main steel bars from the outside; Step 5: Fix the fixing plate on the base according to the preset position; Step 6: Pour concrete. After the concrete begins to set, rotate the driving shafts in the reverse direction to make the clamping sleeves swing outwards from the main steel bars and disengage from the main steel bars; Step 7: Remove the connection structure between the fixing plate and the base, and remove the form; Step 8: Based on the formed frame column, move the form upwards and repeat Steps 2 to 7.

[0033] In the prior art, during the concrete pouring process, the vibrating action of the vibrating rod easily causes the support pads to fall off, thereby causing the displacement of the main steel bars of the frame column, affecting the stability and safety of the structure.

[0034] In this embodiment, the U-shaped first positioning component and the second positioning component are buckled to form a rectangular frame, which is tightly clamped with the frame column steel bars, ensuring that the main steel bars maintain a fixed position during pouring and avoiding displacement. Significantly improves the positioning accuracy of the main steel bars of the frame column, ensures uniform force of the structure, and enhances the overall stability and safety.

[0035] In addition, the traditional method requires repeated adjustment of the support pads, and operations such as correcting column steel bars, welding positioning steel bars, and strengthening forms are complex, time-consuming, and laborious. In this embodiment, through the transmission connection between the driving shafts and the follower shafts, the flipping of the clamping sleeves is realized, and the clamping or disengagement of the positioning frame and the main steel bars is quickly completed. The positioning frame can be integrally moved to the next construction point without complete disassembly, simplifying the operation process. Through mechanical transmission, the flipping and positioning of the clamping sleeves are realized, improving the construction efficiency. The positioning device is detachable and reusable, reducing material waste and construction costs, and conforming to the concept of green construction.

[0036] Embodiment 2 further describes the installation structure of the ferrule.

[0037] In this embodiment, the ferrule is slidably sleeved on the driving shaft and the follower shaft. A locking wire is provided on the side of the ferrule so that the position of the ferrule can be changed and fixed by the locking wire. In this embodiment, the ferrule is slidably configured and its position can be adjusted, so that it can adaptively adjust the position of the ferrule according to different reinforcement bar structures of the frame column, greatly improving its application range.

[0038] In this embodiment, the card slot is a trapezoidal opening with a gradually expanding opening. As the follower shaft and the driving shaft rotate, the clamping effect with the reinforcement bars can be gradually improved, preventing displacement, ensuring the stability of the structure, improving the construction quality of the frame column, and reducing the workload of subsequent repair and adjustment.

[0039] Embodiment 3 further describes the connection structure between the base and the fixed plate.

[0040] An expansion rod is provided between the base and the fixed plate. Both ends of the expansion cylinder are hinged to the base and the fixed plate. In this embodiment, through the structure of the expansion rod hinged at both ends, the positioning frame can be positioned based on the same base structure, and the thickness of the protective layer can be adaptively adjusted by adjusting the length of the expansion rod.

[0041] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. The basic concept of the present invention is to realize the flipping and positioning of the ferrule through mechanical transmission, reducing manual operation, lowering the construction difficulty, and improving the uniformity of the construction of the protective layer of the frame column. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A positioning device for the steel bar protection layer of frame beam-columns, characterized in that: It includes a first positioning component, a second positioning component, a connecting component and a fixing component. The first positioning component and the second positioning component are correspondingly arranged on both sides of the connecting component and form a positioning frame structure. The first positioning component and the second positioning component both include a driving shaft, a follower shaft, a transmission seat and a clamping sleeve. The two ends of the driving shaft are respectively provided with a transmission seat, and one end of the driving shaft is provided with a driving handle, so that the driving shaft rotates in the transmission seat. One end of the follower shaft is arranged on the transmission seat and is in transmission connection with the driving shaft, so that the follower shaft can rotate following the driving shaft. The clamping sleeve is arranged on the driving shaft and the follower shaft and is provided with a clamping groove. The connecting component includes a connecting seat and a central block. The central blocks are rotatably arranged on both sides of the connecting seat, and the other ends of the follower shafts are connected to the central blocks. The fixing component includes a fixing plate, and the fixing plate is arranged on the transmission seat.

2. The positioning device for the steel bar protective layer of the frame beam-column according to claim 1, wherein: A positioning seat is arranged in the middle of the driving shaft. A rotating block is rotatably arranged in the middle of the positioning seat, and the driving shaft is fixed on the rotating block. The fixing plate is arranged on the positioning seat.

3. The positioning device for the steel bar protection layer of the frame beam-column according to claim 2, wherein: Connecting studs are arranged at both ends of the rotating block, and a connecting plate is arranged on the driving shaft. The connecting plate is fixed on the connecting stud by a nut.

4. The positioning device for the steel bar protection layer of the frame beam-column according to claim 1, wherein: One or two limiting grooves are arranged in the connecting seat. The central block is rotatably arranged in the limiting groove. Connecting studs are arranged on the outer side of the central block, and a connecting plate is arranged on the driving shaft. The connecting plate is fixed on the connecting stud by a nut.

5. The positioning device for the steel bar protection layer of the frame beam-column according to claim 1, characterized in that: The driving shaft is in transmission connection with the follower shaft through a bevel gear set.

6. The positioning device for the steel bar protection layer of the frame beam-column according to claim 1, characterized in that: The clamping sleeve is slidably sleeved on the driving shaft and the follower shaft. A locking wire is arranged on the side surface of the clamping sleeve, so that the position of the clamping sleeve can be changed and fixed by the locking wire.

7. The positioning device for the steel bar protection layer of the frame beam-column according to claim 1, characterized in that: The clamping groove is a trapezoidal opening with a gradually expanding opening.

8. The positioning device for the steel bar protection layer of the frame beam-column according to claim 1, characterized in that: Fixing holes are arranged on the fixing plate, and the fixing holes are round holes.

9. The positioning device for the steel bar protection layer of the frame beam-column according to claim 1, wherein: An expansion link is arranged between the base and the fixing plate. Both ends of the expansion cylinder are hinged to the base and the fixing plate.

10. A method for positioning the steel bar protective layer of frame beam-columns, which is applied to the frame beam-column steel bar protective layer positioning device described in claim 1, is characterized in that: It includes the following steps: Step 1: Tie the steel bars based on the construction drawings of the frame columns. Step 2: Support the segmented formwork on the outside of the frame column steel bars. A base is arranged at the top of the frame column formwork. Step 3: Taking the connecting seat as the connection basis, combine the U-shaped first positioning component and the second positioning component on the connecting seat. Step 4: Rotate the two driving shafts, and the follower shafts rotate synchronously, so that the clamping sleeves arranged on the driving shafts and the follower shafts swing from the area outside the frame column steel bars towards the frame column steel bars, ensuring that the clamping grooves of the clamping sleeves are clamped on the corresponding main steel bars from the outside. Step 5: Fix the fixing plate on the base according to the preset position. Step 6: Pour the concrete. After the concrete begins to set, rotate the driving shafts in the reverse direction, so that the clamping sleeves swing outwards from the main steel bars and disengage from the main steel bars. Step 7: Remove the connection structure between the fixing plate and the base, and remove the formwork. Step 8: Taking the formed frame column as the basis, move the formwork upwards and repeat steps 2 to 7.

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