A sliding mode construction vertical steel bar deviation prevention device

Abstract

The application discloses a vertical steel bar anti-deviation device for slip-form construction, and relates to the technical field of slip-form construction, which comprises a cross beam and a longitudinal beam, the cross beam is fixed with a portal, the top end of the cross beam is fixedly connected with the longitudinal beam, the top end of the longitudinal beam is fixedly connected with a support rod, the top end of the support rod is fixedly connected with a righting mechanism, one end of the righting mechanism is fixedly connected with a positioning mechanism, and the righting mechanism and the positioning mechanism are arranged; wherein the righting mechanism can guide and limit the steel bar, and prevent the steel bar from deviating during pouring and vibrating; the positioning mechanism can rigidly lock the positioning plate of the righting mechanism, effectively solves the problem that the positioning plate is elastically yielded due to stress when clamping the steel bar, and causes the steel bar to be skewed; the first spring only bears the function of self-adaption, the positioning plate is completely rigidly fixed in the locked state, the lateral movement resistance is obviously improved, the righting mechanism and the positioning mechanism can also move synchronously with the slip-form device, and the dynamic deviation problem in the slip-form climbing process is solved.

Description

Technical Field

[0001] This invention relates to the field of slipform construction technology, and in particular to a device for preventing vertical rebar displacement during slipform construction. Background Technology

[0002] Slipform construction technology, with its advantages of high construction efficiency, good structural integrity, and excellent surface smoothness, is widely used in the construction of vertical circular concrete structures such as chimneys, grain silos, coal bunkers, and bridge piers. During slipform construction, the vertical reinforcing bars, as the main load-bearing components of the structure, directly determine the load-bearing capacity, seismic performance, and durability of the concrete structure through the accuracy of their installation.

[0003] During concrete pouring and vibration, the concrete exerts uneven lateral pressure on the vertical reinforcing bars. If the concrete is poured in layers asymmetrically, the vibration force is too large, or the vibration points are not distributed reasonably, the reinforcing bars will be subjected to excessive lateral thrust on one side, leading to tilting and displacement. At the same time, the supporting effect of unhardened concrete is weak and cannot provide stable lateral restraint for the vertical reinforcing bars, further increasing the possibility of reinforcing bar displacement. Moreover, after the reinforcing bars are displaced from the unhardened concrete, subsequent splicing of reinforcing bars will cause the overall reinforcing bars to be skewed, affecting the overall construction quality. To address the aforementioned issue of vertical rebar offset, existing technologies employ auxiliary measures such as denser positioning hoops, real-time manual straightening, and control of slipform speed. However, these measures all have limitations: denser positioning hoops increase construction workload and material consumption, and cannot solve the dynamic offset problem during slipform climbing; manual straightening is inefficient, labor-intensive, and its accuracy is greatly affected by the operator's experience, making precise control difficult; controlling the slipform speed reduces construction efficiency and cannot meet the requirements of high-efficiency construction. Therefore, this paper proposes a vertical rebar offset prevention device for slipform construction to address the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a device for preventing vertical rebar displacement during slipform construction, in order to solve the problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A device for preventing vertical rebar deviation in slipform construction includes a horizontal beam and a longitudinal beam. The horizontal beam is fixed to a gantry frame. A longitudinal beam is fixedly connected to the top of the horizontal beam. A support rod is fixedly connected to the top of the longitudinal beam. A straightening mechanism is fixedly connected to the top of the support rod. The straightening mechanism includes a positioning plate. A positioning mechanism is fixedly connected to one end of the straightening mechanism. A rebar passes through the inner side of the straightening mechanism. A threaded cylinder is spirally connected to one end of the rebar. The straightening mechanism is used to keep the reinforcing bars in a vertical position; The positioning mechanism provides a rigid locking function to the positioning plate inside the straightening mechanism, which solves the problem of the positioning plate elastically yielding and causing the steel bar to tilt when clamped by force.

[0006] Preferably, the straightening mechanism includes a slider, an adjusting rod is slidably connected to the inner side of the slider, a positioning plate is fixedly connected to one end of the adjusting rod, and a positioning hole and a threaded hole are provided on the inner side of the top end of the slider.

[0007] Preferably, a locking screw is helically connected to the inner side of the threaded hole, and the locking screw is in contact with the adjusting rod.

[0008] Preferably, a first guide shaft is slidably connected to the inner side of the slider, a fixed frame is fixedly connected to the end of the first guide shaft, a fixed ring is fixedly connected to the bottom end of the fixed frame, and the fixed ring is fixedly connected to the support rod. A first spring is provided on the outer side of the first guide shaft, and the two ends of the first spring are fixedly connected to the fixed frame and the slider respectively. The fixed frame is fixedly connected to the positioning mechanism.

[0009] Preferably, a wedge plate is fixedly connected to the top of the positioning plate.

[0010] Preferably, the positioning mechanism includes a crossbar fixedly connected to the fixed frame, a fixed shaft fixedly connected to one end of the crossbar, an adjusting block movably disposed on the outer side of the fixed shaft, a positioning pin rotatably connected to the end of the adjusting block, and the positioning pin engaging with the slider through a positioning hole.

[0011] Preferably, a first guide plate is slidably connected to the outer side of the positioning pin, and the first guide plate is fixedly connected to the fixing frame.

[0012] Preferably, a second guide plate is fixedly connected to one end of the fixed frame, a second guide shaft is slidably connected to the inner side of the second guide plate, a movable frame is fixedly connected to the end of the second guide shaft, a wedge block is fixedly connected to one end of the movable frame, a second spring is provided on the outer side of the second guide shaft, and the two ends of the second spring are fixedly connected to the movable frame and the second guide plate respectively.

[0013] Preferably, one end of the movable frame is rotatably connected to a guide block, and a lever is slidably connected to the inner side of the guide block, and the lever is fixedly connected to the adjusting block.

[0014] Compared with the prior art, the present invention has the following beneficial effects: A device for preventing vertical rebar deviation during slipform construction includes a straightening mechanism and a positioning mechanism. The straightening mechanism guides and limits the rebar to prevent deviation during pouring and vibration. The positioning mechanism rigidly locks the positioning plate of the straightening mechanism, effectively solving the problem of rebar skewing caused by elastic yielding under stress when the positioning plate clamps the rebar. The first spring only performs the function of self-alignment. In the locked state, the positioning plate is completely rigidly fixed, significantly improving the resistance to lateral displacement. At the same time, the positioning plate can also move synchronously with the slipform device, solving the problem of dynamic deviation during the slipform climbing process. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the overall structure of a vertical rebar anti-deviation device for slipform construction according to the present invention.

[0017] Figure 2 This is a schematic diagram of the installation structure of the longitudinal beam of the vertical reinforcement anti-deviation device for slipform construction according to the present invention.

[0018] Figure 3 This is a schematic diagram of the fixing ring of a vertical rebar anti-deviation device for slipform construction according to the present invention.

[0019] Figure 4 This is a schematic diagram of the installation structure of the slider of the vertical rebar anti-deviation device for slipform construction according to the present invention.

[0020] Figure 5 This is a schematic diagram of the installation structure of the wedge plate of the vertical rebar anti-deviation device for slipform construction according to the present invention.

[0021] Figure 6 This is a schematic diagram of the installation structure of the positioning plate of the vertical rebar anti-deviation device for slipform construction according to the present invention.

[0022] Figure 7 This is a side view of the installation structure of the straightening mechanism of the vertical rebar anti-deviation device for slipform construction according to the present invention.

[0023] Figure 8 This is a half-sectional structural diagram of the positioning mechanism of the vertical rebar anti-deviation device for slipform construction according to the present invention.

[0024] Figure 9This is a schematic diagram of the installation structure of the second guide plate of the slipform construction vertical rebar anti-deviation device of the present invention.

[0025] Figure 10 This is a schematic diagram of the wedge plate structure of a vertical rebar anti-deviation device for slipform construction according to the present invention.

[0026] Figure 11 This is a schematic diagram of the slider of a sliding formwork construction vertical rebar anti-deviation device according to the present invention.

[0027] In the diagram: 1. Crossbeam; 2. Longitudinal beam; 3. Support rod; 4. Reinforcing bar; 5. Threaded cylinder; 6. Straightening mechanism; 601. First guide shaft; 602. First spring; 603. Slider; 604. Adjusting rod; 605. Positioning plate; 606. Wedge plate; 607. Locking screw; 608. Fixing frame; 609. Positioning hole; 610. Threaded hole; 611. Fixing ring; 7. Positioning mechanism; 701. Crossbar; 702. Fixing shaft; 703. Adjusting block; 704. Positioning pin; 705. First guide plate; 706. Second guide plate; 707. Second guide shaft; 708. Second spring; 709. Wedge block; 710. Moving frame; 711. Guide block; 712. Lever. Detailed Implementation

[0028] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the specific embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product size. At the same time, all precision instruments such as lead screws, screws, gears, racks, etc. are equipped with protective structures such as protective covers. As these are common knowledge, they are not described in detail in the specification. It is understandable for those skilled in the art that some common structures and their descriptions may be omitted in the drawings. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] To make the technical means, creative features, objectives, and effects of this invention easier to understand, it should be noted in the description of this invention that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The invention will be further described below in conjunction with specific embodiments.

[0030] Example like Figures 1-11 As shown, a vertical rebar anti-deviation device for slipform construction includes a horizontal beam 1 and a longitudinal beam 2. The horizontal beam 1 is fixed to the gantry frame. The slipform device mainly consists of core components such as a formwork system, a lifting system, and an operating platform system. These systems all adopt existing mature technologies, and their specific structures and working principles will not be detailed here. Among them, the lifting system is the key to the entire device, and it includes the gantry frame, hydraulic jacks, and a mandrel. During slipform construction, the horizontal beam 1 is securely installed on the gantry frame with bolts, and moves synchronously and smoothly upward along the mandrel as the entire slipform device is driven by the hydraulic jacks, thereby realizing the continuous climbing of the formwork and the segmented pouring of concrete. A longitudinal beam 2 is fixedly connected to the top of the crossbeam 1, a support rod 3 is fixedly connected to the top of the longitudinal beam 2, and a straightening mechanism 6 is fixedly connected to the top of the support rod 3. The surface of the crossbeam 1 has a long strip-shaped through groove, which allows the crossbeam 1 to be easily fixed to the gantry by bolts. The surface of the longitudinal beam 2 also has a long strip-shaped through groove, which facilitates the installation of the support rod 3 in a suitable position on the longitudinal beam 2. The surface of the support rod 3 also has rows of through holes, which allow the position of the straightening mechanism 6 to be adjusted according to the position of the reinforcing bar 4.

[0031] The straightening mechanism 6 includes a positioning plate 605. One end of the straightening mechanism 6 is fixedly connected to a positioning mechanism 7. A reinforcing bar 4 passes through the inner side of the straightening mechanism 6. One end of the reinforcing bar 4 is spirally connected to a threaded cylinder 5. During the slipform construction process, the vertical reinforcing bar 4 is connected upwards segment by segment through the threaded cylinder 5, and the outer diameter of the threaded cylinder 5 is larger than the diameter of the reinforcing bar 4.

[0032] The straightening mechanism 6 is used to maintain the vertical state of the reinforcing bar 4 and ensure that the vertical state of the reinforcing bar 4 is within the allowable error range; The positioning mechanism 7 provides a rigid locking function to the positioning plate 605 inside the straightening mechanism 6. This design effectively solves the problem of elastic yielding of the positioning plate 605 due to force during the clamping of the reinforcing bar 4. Through rigid locking, the clamping position of the positioning plate 605 is firmly fixed, thereby preventing the reinforcing bar 4 from tilting due to elastic deformation and ensuring the accuracy and stability of the positioning of the reinforcing bar 4.

[0033] During slipform construction, the operating platform space is limited, and the slipform system's built-in hydraulic and electrical systems already occupy most of the piping space, making it unsuitable to add additional sensors, cylinders, or other electronic or pneumatic components and their corresponding wiring. Therefore, the guiding and positioning functions are achieved through a purely mechanical cooperation between the straightening mechanism 6 and the positioning mechanism 7. Furthermore, the purely mechanical approach effectively avoids the impact of vibration, humidity, and other factors in the construction environment on the stability of the device, ensuring the reliable operation of the rebar alignment. This purely mechanical structural design not only reduces the device's failure rate and subsequent maintenance costs, but also simplifies installation and operation, eliminating the need for complex electrical control systems. Construction personnel can become proficient in its use after simple training.

[0034] As a further improvement to the present invention, such as Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 10 and Figure 11 As shown, the straightening mechanism 6 includes a slider 603, with an adjusting rod 604 slidably connected to the inner side of the slider 603. One end of the adjusting rod 604 is fixedly connected to a positioning plate 605. Based on the diameter of the reinforcing bar 4, the extension position of the positioning plate 605 can be precisely adjusted by driving the adjusting rod 604 to move within the inner groove of the slider 603. This adjustment mechanism ensures that when the side end face of the slider 603 is finally tightly fitted with the fixing frame 608, the positioning plate 605 can be securely clamped to the surface of the reinforcing bar 4. Furthermore, three positioning plates 605 are evenly arranged along the circumference of each reinforcing bar 4. These three positioning plates 605 simultaneously engage with the reinforcing bar 4 from different directions, effectively maintaining the vertical posture of the reinforcing bar 4 and preventing it from tilting or shifting in subsequent processes.

[0035] To ensure that the positioning plate 605 can always play its positioning function during construction, after it is tightly attached to the reinforcing bar 4, it is also necessary to ensure that the positioning plate 605 can be reliably driven when the slipform device moves upward, so as to move upward synchronously with the slipform device.

[0036] The top inner side of the slider 603 is provided with a positioning hole 609 and a threaded hole 610.

[0037] As a further improvement to the present invention, such as Figure 6, Figure 7 and Figure 8 As shown, a locking screw 607 is screwed onto the inner side of the threaded hole 610, and the locking screw 607 engages with the adjusting rod 604. When the position of the positioning plate 605 needs to be adjusted via the adjusting rod 604, the operator should first loosen the locking screw 607 to separate it from the adjusting rod 604, thereby releasing the lock on the adjusting rod 604. Subsequently, the adjusting rod 604 can be moved smoothly, driving the positioning plate 605 to the desired working position. After the positioning plate 605 is accurately in place, the operator needs to retighten the locking screw 607 so that its end is tightly pressed against the outer surface of the adjusting rod 604. At this time, the static friction generated between the locking screw 607 and the adjusting rod 604 can effectively limit the unexpected displacement or rotation of the adjusting rod 604, thereby firmly locking the positioning plate 605 in its current state. This limiting and fixing mechanism ensures that when the positioning plate 605 is attached to the rebar 4 in subsequent operations, the positioning plate 605 can remain stable and will not loosen or shift, thereby ensuring the reliability and accuracy of the operation.

[0038] As a further improvement to the present invention, such as Figure 6 , Figure 7 and Figure 8 As shown, a first guide shaft 601 is slidably connected to the inner side of the slider 603. Under the action of the first guide shaft 601, the stability of the slider 603 during operation can be guaranteed. A fixed frame 608 is fixedly connected to the end of the first guide shaft 601. A fixed ring 611 is fixedly connected to the bottom end of the fixed frame 608, and the fixed ring 611 is fixedly connected to the support rod 3. A first spring 602 is provided on the outer side of the first guide shaft 601. The two ends of the first spring 602 are fixedly connected to the fixed frame 608 and the slider 603 respectively. The fixed frame 608 is fixedly connected to the positioning mechanism 7. The first spring 602 continuously applies a pressure towards the fixed frame 608 to the slider 603. When the positioning plate 605 is tightly attached to the surface of the steel bar 4, the side of the slider 603 is also stably attached to the inner wall of the fixed frame 608 under the action of this pressure, thereby achieving accurate positioning.

[0039] As a further improvement to the present invention, such as Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, a wedge plate 606 is fixedly connected to the top of the positioning plate 605. During slipform construction, as the concrete pouring surface gradually rises, the vertical reinforcing bars 4 need to be extended upwards segment by segment through the threaded cylinder 5. Since the outer diameter of the threaded cylinder 5 is larger than the diameter of the reinforcing bars 4 themselves, there is a potential risk of interference between the positioning plate 605 and the threaded cylinder 5 when the positioning plate 605 moves upwards synchronously with the slipform device. To ensure that the positioning plate 605 can smoothly pass over the threaded cylinder 5, the wedge plate 606 will first contact the outer surface of the threaded cylinder 5. Under the guiding action of the inclined surface of the wedge plate 606, the positioning plate 605 will move away from the vertical centerline of the reinforcing bars 4 and pass over the threaded cylinder 5, thereby avoiding jamming. This process is achieved entirely by the structure of the device itself, without the need for manual adjustment of the position of the positioning plate 605, which not only simplifies the operation and facilitates on-site construction, but also significantly improves the overall climbing efficiency and construction continuity of the slipform device.

[0040] As a further improvement to the present invention, such as Figure 7 and Figure 8 As shown, the positioning mechanism 7 includes a crossbar 701 fixedly connected to the fixed frame 608. One end of the crossbar 701 is fixedly connected to a fixed shaft 702. An adjusting block 703 is movably arranged on the outside of the fixed shaft 702. A positioning pin 704 is rotatably connected to the end of the adjusting block 703. The positioning pin 704 is engaged with the slider 603 through the positioning hole 609. The adjusting block 703 has an oblong hole on its inner side. This design allows the adjusting block 703 and the fixed shaft 702 to move relative to each other while rotating relative to each other. This structure allows the adjusting block 703 to smoothly engage or disengage the positioning pin 704 and the slider 603. Furthermore, when the positioning plate 605 is tightly fitted with the reinforcing bar 4, the position of the positioning pin 704 is precisely aligned with the positioning hole 609, ensuring that the positioning pin 704 can be accurately inserted into the inner side of the positioning hole 609.

[0041] After the positioning pin 704 is inserted into the inner side of the positioning hole 609, it can precisely limit and fix the slider 603. This locking mechanism connects the slider 603, the adjusting rod 604 connected to it, and the positioning plate 605 at the end into a whole, realizing a rigid mechanical locking state. The core function of this design is that it completely solves the problem of slight elastic deformation and yielding of the positioning plate 605 due to force when clamping the rebar 4, thereby effectively preventing the rebar 4 from shifting or tilting during processing. At this time, the first spring 602 only needs to maintain its initial self-aligning adjustment function, and the locking and fixing of the entire system is entirely borne by the rigid structure. In the locked state, the fixing of the positioning plate 605 is absolutely rigid, and its ability to resist lateral displacement and disturbance is significantly enhanced, ensuring the stability and precision of clamping; at the same time, the positioning plate 605 can also move synchronously with the sliding mold device, solving the problem of dynamic displacement during the sliding mold climbing process.

[0042] As a further improvement to the present invention, such as Figure 7 and Figure 8 As shown, a first guide plate 705 is slidably connected to the outer side of the positioning pin 704. The first guide plate 705 is fixedly connected to the fixing frame 608. The first guide plate 705 provides a precise guiding path for the movement of the positioning pin 704, ensuring that its movement trajectory in the vertical direction is stable and smooth. This effectively prevents the positioning pin 704 from swaying or getting stuck during the lifting process, and ensures the reliability and accuracy of the overall positioning action.

[0043] As a further improvement to the present invention, such as Figure 7 , Figure 8 and Figure 9 As shown, a second guide plate 706 is fixedly connected to one end of the fixed frame 608, and the second guide plate 706 is L-shaped. A second guide shaft 707 is slidably connected to the inner side of the second guide plate 706. A movable frame 710 is fixedly connected to the end of the second guide shaft 707. A wedge block 709 is fixedly connected to one end of the movable frame 710. A second spring 708 is provided on the outer side of the second guide shaft 707, and both ends of the second spring 708 are fixedly connected to the movable frame 710 and the second guide plate 706, respectively. A guide block 711 is rotatably connected to one end of the movable frame 710. A lever 712 is slidably connected to the inner side of the guide block 711, and the lever 712 is fixedly connected to the adjusting block 703. The second spring 708 provides a spring force to the movable frame 710 toward the center line of the reinforcing bar 4, and the wedge block 709 is located above the positioning plate 605. When the wedge block 709 moves upward synchronously with the sliding mold device and passes the threaded cylinder 5, it will first contact the outer surface of the threaded cylinder 5. The threaded cylinder 5 then squeezes the wedge block 709, causing the wedge block 709 to drive the second guide shaft 707 and the moving frame 710 to move horizontally along the second guide plate 706 in a direction away from the vertical center line of the reinforcing bar 4. At this time, the moving frame 710 drives the adjusting block 703 to move relative to the fixed shaft 702 through the guide block 711 and the lever 712, so that the adjusting block 703, with the positioning pin 704, gradually moves out from the inside of the slider 603, releasing the positioning pin 704 from limiting the slider 603, thereby allowing the slider 603 and the positioning plate 605 to move freely.

[0044] When the wedge block 709 slides upward along the outer surface of the threaded cylinder 5, the wedge plate 606 will then disengage from the threaded cylinder 5. The threaded cylinder 5 will then press against the wedge plate 606, causing the wedge plate 606 to move the positioning plate 605, adjusting rod 604, and slider 603 away from the vertical centerline of the reinforcing bar 4. This allows the positioning plate 605 to smoothly pass over the threaded cylinder 5, thus avoiding jamming. This process is achieved entirely by the structure of the device itself, without the need for manual adjustment of the position of the positioning plate 605. This not only simplifies the operation process and provides convenience for on-site construction, but also significantly improves the overall climbing efficiency and construction continuity of the slipform device. After the wedge plate 606 passes the threaded cylinder 5, under the elastic force of the first spring 602, the slider 603 will drive the positioning plate 605 to re-fit with the reinforcing bar 4 via the adjusting rod 604. At the same time, the wedge block 709 is no longer squeezed by the threaded cylinder 5, and under the elastic force of the second spring 708, the moving frame 710 and the wedge block 709 will reset, waiting for the next operation. During the reset process of the moving frame 710, it will drive the positioning pin 704 to re-pass through the positioning hole 609 and engage with the slider 603 via the guide block 711, the lever 712, and the adjusting block 703.

[0045] Work process: When in use, first fix the crossbeam 1 to the gantry in the lifting system with bolts, then fix the longitudinal beam 2 to the crossbeam 1 with bolts, and then fix the support rod 3 to the longitudinal beam 2 with bolts; then, according to the position of the reinforcing bar 4, fix the fixing ring 611 to the support rod 3 with bolts, and make fine adjustments to the positioning plates 605 around the reinforcing bar 4 so that the positioning plates 605 in all directions can stably fit the reinforcing bar 4.

[0046] During the upward movement of the sliding formwork device, the sliding formwork device will drive the crossbeam 1 to move upward synchronously through the gantry in the lifting system. The crossbeam 1 will then drive the fixed ring 611 to move upward through the longitudinal beam 2 and the support rod 3. The fixed ring 611 will drive the positioning plate 605 to move upward synchronously along the reinforcing bar 4 through the first guide shaft 601, the slider 603, and the adjusting rod 604. On the other hand, it will drive the wedge block 709 to move upward synchronously through the second guide plate 706, the second guide shaft 707, and the moving frame 710.

[0047] When the wedge block 709 moves upward synchronously and passes the threaded cylinder 5, it will first contact the outer surface of the threaded cylinder 5. The threaded cylinder 5 then squeezes the wedge block 709, causing the wedge block 709 to drive the second guide shaft 707 and the moving frame 710 to move horizontally along the second guide plate 706 in a direction away from the vertical center line of the reinforcing bar 4. At this time, the moving frame 710 drives the adjusting block 703 to move relative to the fixed shaft 702 through the guide block 711 and the lever 712, so that the adjusting block 703, with the positioning pin 704, gradually moves out from the inside of the slider 603, releasing the positioning pin 704 from limiting the slider 603, thereby allowing the slider 603 and the positioning plate 605 to move freely.

[0048] When the wedge block 709 slides upward along the outer surface of the threaded cylinder 5, the wedge plate 606 will then disengage from the threaded cylinder 5. The threaded cylinder 5 will then press against the wedge plate 606, causing the wedge plate 606 to move the positioning plate 605, adjusting rod 604, and slider 603 away from the vertical centerline of the reinforcing bar 4. This allows the positioning plate 605 to smoothly pass over the threaded cylinder 5, thus avoiding jamming. This process is achieved entirely by the structure of the device itself, without the need for manual adjustment of the position of the positioning plate 605. This not only simplifies the operation process and provides convenience for on-site construction, but also significantly improves the overall climbing efficiency and construction continuity of the slipform device. After the wedge plate 606 passes the threaded cylinder 5, under the elastic force of the first spring 602, the slider 603 will drive the positioning plate 605 to re-fit with the reinforcing bar 4 via the adjusting rod 604. At the same time, the wedge block 709 is no longer squeezed by the threaded cylinder 5, and under the elastic force of the second spring 708, the moving frame 710 and the wedge block 709 will reset, waiting for the next operation. During the reset process of the moving frame 710, it will drive the positioning pin 704 to re-pass through the positioning hole 609 and engage with the slider 603 via the guide block 711, the lever 712, and the adjusting block 703.

[0049] The above are preferred embodiments of the present invention. The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from the scope of protection of the present invention. All such changes and modifications fall within the scope of protection of the present invention as defined by the appended claims and their equivalents.

Claims

1. A device for preventing vertical rebar displacement during slipform construction, comprising a horizontal beam (1) and a longitudinal beam (2), characterized in that: The crossbeam (1) is fixed together with the gantry. The top of the crossbeam (1) is fixedly connected to the longitudinal beam (2). The top of the longitudinal beam (2) is fixedly connected to the support rod (3). The top of the support rod (3) is fixedly connected to the straightening mechanism (6). The straightening mechanism (6) includes a positioning plate (605). One end of the straightening mechanism (6) is fixedly connected to the positioning mechanism (7). The inner side of the straightening mechanism (6) has a reinforcing bar (4). One end of the reinforcing bar (4) is spirally connected to a threaded cylinder (5). The straightening mechanism (6) is used to maintain the steel bar (4) in a vertical position; The positioning mechanism (7) provides a rigid locking function to the positioning plate (605) inside the straightening mechanism (6); The straightening mechanism (6) includes a slider (603), an adjusting rod (604) is slidably connected to the inner side of the slider (603), a positioning plate (605) is fixedly connected to one end of the adjusting rod (604), and a positioning hole (609) and a threaded hole (610) are provided on the inner side of the top of the slider (603). The inner side of the slider (603) is slidably connected to a first guide shaft (601), and the end of the first guide shaft (601) is fixedly connected to a fixing frame (608). The bottom end of the fixing frame (608) is fixedly connected to a fixing ring (611), and the fixing ring (611) is fixedly connected to the support rod (3). The outer side of the first guide shaft (601) is provided with a first spring (602), and the two ends of the first spring (602) are fixedly connected to the fixing frame (608) and the slider (603) respectively. The fixing frame (608) is fixedly connected to the positioning mechanism (7), and the top end of the positioning plate (605) is fixedly connected to a wedge plate (606). The positioning mechanism (7) includes a crossbar (701) fixedly connected to the fixed frame (608). One end of the crossbar (701) is fixedly connected to a fixed shaft (702). An adjusting block (703) is movably arranged on the outside of the fixed shaft (702). A positioning pin (704) is rotatably connected to the end of the adjusting block (703), and the positioning pin (704) is engaged with the slider (603) through a positioning hole (609). One end of the fixed frame (608) is fixedly connected to a second guide plate (706), the inner side of the second guide plate (706) is slidably connected to a second guide shaft (707), the end of the second guide shaft (707) is fixedly connected to a movable frame (710), one end of the movable frame (710) is fixedly connected to a wedge block (709), the outer side of the second guide shaft (707) is provided with a second spring (708), and the two ends of the second spring (708) are fixedly connected to the movable frame (710) and the second guide plate (706) respectively. One end of the movable frame (710) is rotatably connected to a guide block (711), and a lever (712) is slidably connected to the inner side of the guide block (711), and the lever (712) is fixedly connected to the adjusting block (703).

2. The vertical reinforcement anti-deviation device for slipform construction according to claim 1, characterized in that: The inner side of the threaded hole (610) is helically connected to a locking screw (607), and the locking screw (607) is in contact with the adjusting rod (604).

3. The vertical reinforcement anti-deviation device for slipform construction according to claim 1, characterized in that: The outer side of the positioning pin (704) is slidably connected to a first guide plate (705), and the first guide plate (705) is fixedly connected to the fixing frame (608).

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