A transverse amplitude concrete intercepting device

Abstract

This invention relates to the field of concrete pouring technology in building engineering, specifically to a transverse variable-amplitude concrete interception device. The transverse variable-amplitude concrete interception device includes a lifting assembly, a limiting assembly, and several transverse interception components. The limiting assembly connects to the transverse interception components to prevent rotation during use. The lifting assembly connects to the transverse interception components via an interception angle adjustment assembly, allowing for the unified removal of the transverse interception components after use. This invention solves the technical problem of the inability to insert integral rigid baffles due to their fixed width; it effectively resists the deflection torque caused by the lateral pressure of flowing concrete, ensuring high rigidity and positional stability of the interception interface, avoiding defects such as bulging and cracking of the closing mesh and deformation and floating of the airbag; it enables the repeated use of the interception device, avoiding material waste and environmental pollution caused by traditional disposable consumables.

Description

Technical Field

[0001] This invention relates to the field of concrete pouring technology in building engineering, and more specifically, to a transverse variable amplitude concrete interception device. Background Technology

[0002] In modern high-rise and super high-rise frame structures, beam-column joints serve as the core hub for load transfer, and their construction quality plays a decisive role in the overall seismic safety of the structure. Based on the "strong column, weak beam" structural seismic design concept, the concrete grade of the columns and connected beams / slabs in the joint area often differs significantly. During cast-in-place construction, freshly mixed fluid concrete is highly susceptible to diffusion under pumping and high-frequency vibration. Without effective interception, the high-strength concrete of the first-poured columns will uncontrollably flow into the beam / slab area, causing cross-boundary formwork migration. This not only results in material waste but also leads to the formation of disordered mixed-concrete zones at the interface, weakening the shear bearing capacity of the core joint area and causing quality defects such as color difference and cold joints.

[0003] Currently, engineering projects often rely on quick-closing netting or flexible airbags for concrete interception. However, netting installation is time-consuming and labor-intensive, making it uneconomical as a disposable material. Furthermore, its poor rigidity makes it prone to bulging or rupture and grout leakage under strong lateral pressure. While airbags can adapt to the gaps in the reinforcing bars, they struggle to maintain a stable interface under the impact and buoyancy of concrete, easily deforming or floating. Although integral rigid baffles are the optimal solution for concrete interception, their fixed width prevents them from accurately penetrating the narrow, crisscrossing reinforcing bar framework.

[0004] Therefore, existing concrete interception devices cannot simultaneously meet the requirements of adapting to the insertion of dense steel reinforcement cages, maintaining a high-rigidity and stable interception interface, and being reusable. Summary of the Invention

[0005] The purpose of this invention is to provide a transverse variable amplitude concrete interception device that can solve the above-mentioned technical problems.

[0006] This invention provides a transverse variable amplitude concrete interception device, including a lifting component, an interception angle adjustment component, a limiting component, and several transverse interception components; The limiting component is connected to the lateral interception component to prevent the lateral interception component from rotating during use; The lifting component is connected to the lateral interception component via the interception angle adjustment component, and is used to uniformly lift out the lateral interception component after use.

[0007] In an optional embodiment, the lateral interception assembly includes a telescopic baffle group, a telescopic power device, and a telescopic transmission device; The telescopic power device is connected to the telescopic baffle group through the telescopic transmission device, and is used to drive the telescopic baffle group to extend and retract.

[0008] In an optional embodiment, the telescopic baffle assembly includes a fixed baffle and a plurality of movable baffles; The movable baffle is sleeved on the fixed baffle, and the movable baffles are connected to each other.

[0009] In an optional embodiment, the movable baffles are slidably connected by a sliding guide rail assembly; The movable baffle and the fixed baffle are slidably connected by a sliding guide rail assembly.

[0010] In an optional embodiment, the end of the movable baffle furthest from the fixed baffle after unfolding has a flexible skirt.

[0011] In an optional embodiment, the telescopic transmission device includes a bidirectional transmission screw and a scissor-type telescopic frame; The bidirectional transmission screw has two sections of external driving threads symmetrically arranged along the middle, and the helical directions of the two sections of external driving threads are opposite. One end of the scissor-type telescopic frame is connected to the telescopic baffle group, and the two protruding ends of the other end of the scissor-type telescopic frame are respectively connected to the two sections of the driving external thread on the bidirectional transmission screw.

[0012] In an optional embodiment, the interception angle adjustment assembly includes a connector, a lug, and a lower connector; One end of the connector is connected to the lifting assembly, and the other end is provided with a lifting lug; The lower connecting piece is connected to the lifting lug by bolts; One side of the lifting lug has a positioning tooth, and one end of the lower connector has a positioning protrusion that matches the positioning tooth.

[0013] In an optional embodiment, the lifting assembly includes a lifting handle and a lateral connector; The lifting handle is fixedly installed on the side wall of the transverse connector; The transverse connector has a sliding groove that runs through the length direction; The connector is slidably disposed within the sliding groove.

[0014] In an optional embodiment, the limiting component includes a first locking member, a second locking member, a plurality of transverse bolts, and a plurality of top bolts; Both the first card and the second card have card slots, and the card slots on the first card and the second card are arranged opposite to each other; Both the first card and the second card have a horizontal through hole and a top through hole; The transverse bolt passes through the transverse through holes of the first and second clamps and is connected to the clamp nut; The top bolt passes through the top through hole and can abut against the reinforcing bar.

[0015] In an optional embodiment, a sliding cavity is provided on one of the protruding ends of the first card; One of the protruding ends of the second card is slidably disposed within the sliding cavity.

[0016] The beneficial effects of this invention are: The telescopic design of the lateral interception components allows the device to be inserted into the densely packed, crisscrossing steel reinforcement skeleton when retracted, and then extended laterally to meet the structural boundary after positioning. This solves the technical problem of the integral rigid baffle being unable to be inserted due to its fixed width. The anchoring connection between the limiting components and the longitudinal reinforcement at the top of the beam effectively resists the deflection moment caused by the lateral pressure of the flowing concrete, ensuring the high rigidity and positional stability of the interception interface and avoiding defects such as bulging and cracking of the closing mesh and deformation and floating of the airbag. At the same time, the lifting components allow the device to be lifted out uniformly after use, realizing the repeated use of the interception device and avoiding the material waste and environmental pollution caused by traditional disposable consumables. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the transverse variable amplitude concrete interception device provided in an embodiment of the present invention; Figure 2 A schematic diagram of the lateral interception component of the lateral variable amplitude concrete interception device provided in an embodiment of the present invention (in unfolded state). Figure 3 A schematic diagram of the lateral interception component (contraction state) of the lateral variable amplitude concrete interception device provided in an embodiment of the present invention. Figure 4 A side view of the lateral interception component of the lateral variable amplitude concrete interception device provided in an embodiment of the present invention; Figure 5 A schematic diagram of the lower end structure of the lateral interception component of the lateral variable amplitude concrete interception device provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the connector of the transverse variable amplitude concrete interception device provided in an embodiment of the present invention; Figure 7 for Figure 6 Side view; Figure 8 A schematic diagram of the lower connecting component of the transverse variable amplitude concrete interception device provided in an embodiment of the present invention; Figure 9 for Figure 8 Side view; Figure 10 This is a schematic diagram of the lifting assembly of the transverse variable amplitude concrete interception device provided in an embodiment of the present invention; Figure 11 for Figure 10 Side view; Figure 12 This is a schematic diagram of the limiting component of the transverse variable amplitude concrete interception device provided in an embodiment of the present invention.

[0019] icon: 1- Lateral interception assembly; 1.1- Bidirectional transmission screw; 1.2- Sliding plate; 1.3- Scissor telescopic frame; 1.4- Sliding guide; 1.5- Fixed baffle; 1.6- Movable baffle; 1.7- Sliding guide rail assembly; 1.8- Flexible skirt; 1.9- Bottom skirt; 1.10- Rotating connector; 2-Interception angle adjustment assembly; 2.1-Connector; 2.2-Lifting lug; 2.3-Positioning tooth; 2.4-First communicating cavity; 2.5-Installation gap; 2.6-Lower connector; 2.7-Positioning protrusion; 2.8-Second communicating cavity; 2.9-Connecting rod; 3-Lifting assembly; 3.1-Lifting handle; 3.2-Securing through hole; 3.3-Transverse connector; 3.4-Sliding groove; 4-Limiting component; 4.1-Connecting handle; 4.2-Supporting through hole; 4.3-First locking component; 4.4-Top bolt; 4.5-Transverse bolt; 4.6-Second locking component; 4.7-Locking nut; 4.8-Sliding cavity; 5-Reinforcing steel. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this invention, it should be noted 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, or the orientation or positional relationship commonly used when the product of this invention is in use. 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, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] The following is combined Figures 1-12 The following describes some embodiments of the present invention in detail. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] This invention provides a lateral variable-amplitude concrete interception device, mainly used during the cast-in-place construction of the main structure of building engineering to effectively intercept and separate concrete of different strength grades at beam-column joints, preventing high-strength concrete from crossing into the low-strength concrete area, thereby ensuring the construction quality and structural integrity of the core area of ​​the joint. The lateral variable-amplitude concrete interception device adopts a modular design, enabling the rapid construction of a high-rigidity, highly adaptable concrete interception line within the complex steel reinforcement framework of beam-column joints. Furthermore, it can be completely and undamagedly removed after use, allowing for repeated reuse.

[0028] like Figure 1 As shown, the transverse variable-amplitude concrete interception device provided in this embodiment mainly includes four parts: a transverse interception component 1, an interception angle adjustment component 2, a lifting component 3, and a limiting component 4. The transverse interception component 1 forms the rigid interception body of the device, used to directly block the spread of flowing concrete; the interception angle adjustment component 2 is located above the transverse interception component 1, used to adjust the tilt angle of the interception surface; the lifting component 3 is indirectly connected to the transverse interception component 1 through the interception angle adjustment component 2, used to lift the entire device out uniformly after construction; the limiting component 4 is located on one side of the lifting component 3, used to anchor to the longitudinal reinforcement at the top of the beam, preventing the device from rotating or deviating under the lateral pressure of the concrete. The reinforcement 5 are longitudinal reinforcing bars pre-embedded in the beam, and the limiting component 4 is installed on two adjacent reinforcement bars 5.

[0029] The specific structure of lateral interception component 1 is as follows: Figures 2 to 5 As shown. The lateral interception assembly 1 includes a bidirectional transmission screw 1.1, a sliding plate 1.2, a scissor-type telescopic frame 1.3, a sliding guide 1.4, a fixed baffle 1.5, a movable baffle 1.6, a sliding guide rail assembly 1.7, a flexible skirt 1.8, a bottom skirt 1.9, and a rotating connector 1.10.

[0030] The fixed baffle 1.5 forms the basic framework of the lateral interception component 1. It is made of high-strength, rigid metal, integrally cast or machined, and has a fixed standard width that cannot be varied. One end of the fixed baffle 1.5 has a longitudinally oriented sliding guide 1.4. The sliding guide 1.4 has a longitudinally oriented cavity with strip-shaped openings on its sidewalls. The end of the scissor-type telescopic frame 1.3 can extend into the cavity through these openings, and its two protruding ends are respectively connected to two sliding plates 1.2 within the cavity. The other side of the fixed baffle 1.5 is a flat, rigid interception surface used to directly resist the lateral pressure of the flowing concrete.

[0031] In this embodiment, the movable baffle 1.6 is disposed inside the fixed baffle 1.5 and can extend from one side of the interception surface. The movable baffle 1.6 has two levels: a primary movable baffle and a secondary movable baffle. The primary movable baffle is nested within the fixed baffle 1.5, and the secondary movable baffle is nested within the primary movable baffle, forming a three-level stacked structure. The fixed baffle 1.5 and the primary movable baffle, as well as the primary movable baffle and the secondary movable baffle, are slidably connected by sliding guide rail assemblies 1.7.

[0032] Specifically, in this embodiment, the sliding guide rail assembly 1.7 includes a guide rail disposed on the inner wall of the outer baffle and a slider disposed on the outer wall of the inner baffle. This high-strength interlocking guide mechanism can not only ensure the smooth movement of each level of baffle during the lateral expansion and contraction process, but also provide reliable physical displacement limit to prevent the baffle from displacement instability when subjected to heavy concrete lateral pressure.

[0033] It is understood that in this embodiment, the movable baffle 1.6 is two-stage, but it is not only required to be two-stage; it can also be one-stage, three-stage, or even more stages.

[0034] The movable baffle 1.6 at the farthest end after deployment is combined with a flexible skirt 1.8. The flexible skirt 1.8 adopts a comb-like structure and is preferably made of a thermoplastic polyurethane elastomer material with both high mechanical strength and deformation toughness. When the lateral interception component 1 is deployed to the structural boundary, the comb-like flexible skirt 1.8 undergoes adaptive deformation under pressure, which can adaptively bite and wrap around the surface contour of the cylindrical steel bar, fill and fit the internal gaps of the irregular steel bar skeleton, thereby achieving a high-sealing grout interception.

[0035] In addition, a bottom skirt 1.9 is provided at the bottom of the bidirectional transmission screw 1.1. The bottom skirt 1.9 is also made of flexible material and is used to fit tightly with the bottom formwork or the bottom reinforcement of the beam to prevent concrete from leaking from the bottom. In this embodiment, the bottom skirt 1.9 is connected to the bidirectional transmission screw 1.1 through a rotating connector 1.10, so that the bottom skirt 1.9 will not rotate when the bidirectional transmission screw 1.1 rotates.

[0036] In this embodiment, a bidirectional transmission screw 1.1 is longitudinally inserted through the sliding guide 1.4, serving as a telescopic power device to provide power for the deployment and retraction of the lateral interception assembly 1. The bidirectional transmission screw 1.1 has two symmetrically arranged external drive threads along its center, with opposite helical directions. Two sliding plates 1.2 are provided, each fitted onto one of the two external drive threads of the bidirectional transmission screw 1.1. The sliding plates 1.2 have threaded holes inside that match the external drive threads. When the bidirectional transmission screw 1.1 rotates, the two external drive threads drive the two sliding plates 1.2 to move towards or away from each other.

[0037] The scissor-type telescopic frame 1.3, serving as a telescopic transmission device, is mainly housed within the innermost movable baffle 1.6. The scissor-type telescopic frame 1.3 is composed of multiple sets of X-shaped intersecting rods hinged sequentially. One end of the frame is hinged to the outermost movable baffle 1.6 via a connector, while the other end has two extended ends hinged to two sliding plates 1.2 respectively. When the bidirectional transmission screw 1.1 drives the two sliding plates 1.2 to move towards each other, the sliding plates 1.2 compress the scissor-type telescopic frame 1.3, generating a lateral mechanical thrust through the geometric amplification effect of the scissor mechanism, pushing the movable baffle 1.6 outward. When the bidirectional transmission screw 1.1 rotates in the opposite direction, driving the two sliding plates 1.2 to move away from each other, the scissor-type telescopic frame 1.3 generates a pulling force, dragging the movable baffle 1.6 back into the fixed baffle 1.5.

[0038] Specifically, in this embodiment, a specific sequential mechanical linkage logic is adopted during the lateral extension and retraction of the movable baffle 1.6. When expanding outwards, the scissor-type telescopic frame 1.3 first pushes the secondary movable baffle to slide outwards along the sliding guide rail assembly 1.7. When the secondary movable baffle reaches the mechanical limit point of this trajectory, the primary movable baffle is rigidly dragged by the stroke limit structure at its end. The primary and secondary movable baffles overlap as a whole and continue to slide outwards along the bottom guide rail within the fixed baffle 1.5. When performing the retraction action, the pulling force is also applied first to the secondary movable baffle. After the secondary movable baffle retracts inwards to its limit, it then reverses and drives the primary movable baffle, smoothly nesting and retracting back into the reference groove of the fixed baffle 1.5. The top of the bidirectional transmission screw 1.1 is equipped with a fastening limit handle for the operator to manually rotate the screw or apply axial clamping force.

[0039] In this embodiment, as Figures 6 to 9 As shown, the interception angle adjustment assembly 2 includes a connector 2.1, a lifting lug 2.2, a positioning tooth 2.3, a lower connector 2.6, a positioning protrusion 2.7, a second connecting cavity 2.8, and a connecting rod 2.9.

[0040] The connector 2.1 forms the main frame of the interception angle adjustment component 2. One end of it is connected to the lifting component 3, and the other end is provided with a lifting lug 2.2. The lifting lug 2.2 has a first connecting cavity 2.4, which is a circular through hole extending horizontally. One side surface of the lifting lug 2.2 is provided with positioning teeth 2.3, which are multiple tooth-like protrusions evenly distributed along the circumference, forming a radially distributed locking tooth groove structure. There are two lifting lugs 2.2, with the positioning teeth 2.3 located on opposite sides of the two lugs 2.2, and a reserved installation gap 2.5 between the two lugs 2.2 to accommodate the end of the lower connector 2.6.

[0041] The lower connector 2.6 is a key transition piece connecting the lateral interception assembly 1 and the interception angle adjustment assembly 2. One end of the lower connector 2.6 has a second connecting cavity 2.8, which is axially aligned with the first connecting cavity 2.4. The lateral connecting shaft passes sequentially through the first connecting cavity 2.4 and the second connecting cavity 2.8, thus creating a stable rotation axis between the lower connector 2.6 and the lifting lug 2.2. Constrained by the lateral connecting shaft, the lower connector 2.6 and the lateral interception assembly 1 fixedly connected to it can rotate freely around the axis of the lateral connecting shaft, thereby adjusting the oblique angle of the interception surface.

[0042] The lower connector 2.6 has multiple positioning protrusions 2.7 near the lifting lug 2.2. These protrusions 2.7 are evenly arranged around the axis of the second connecting cavity 2.8. The positioning protrusions 2.7 match the positioning teeth 2.3 and can be firmly engaged in the grooves of the positioning teeth 2.3. When the transverse interception assembly 1 rotates to the set tilt angle, tightening the limiting nut at the end of the transverse connecting shaft rigidly engages and locks the positioning protrusions 2.7 with the positioning teeth 2.3, thus achieving rigid fixation of the oblique angle of the interception line. A semi-circular angle scale is also integrated on the outer surface of the lifting lug 2.2. This scale is centered on the axis of the first connecting cavity 2.4 and provides visual feedback on the tilt angle of the transverse interception assembly 1 relative to the vertical direction, offering precise quantitative adjustment basis for construction personnel. The oblique angle of the interception line can be adaptively adjusted within the range of 0 to 90 degrees to meet the requirements of different grade interfaces, conform to the principal tensile stress trajectory of the nodes, and provide the optimal shear force transmission path.

[0043] The other end of the lower connector 2.6 has a connecting rod 2.9, which connects the interception angle adjustment component 2 and the fixed baffle 1.5.

[0044] In this embodiment, as Figures 10 to 11 As shown, the lifting assembly 3 includes a lifting handle 3.1 and a horizontal connector 3.3.

[0045] The transverse connector 3.3 serves as the main support structure for the lifting assembly 3, extending horizontally. A lifting handle 3.1 is fixedly mounted on the side wall of the transverse connector 3.3 at one end, providing a grip for the operator to lift the entire device. The lifting handle 3.1 has a fastening through hole 3.2, the through direction of which is perpendicular to the length of the lifting handle 3.1, serving as a stress point for preventing rotation and ensuring a secure connection. The fastening through holes 3.2 are circular straight holes, and their number can be determined according to actual needs.

[0046] The transverse connector 3.3 has a through-groove 3.4 extending along its length. The through-groove 3.4 is an elongated or recessed structure. The connector 2.1 is slidably positioned within the through-groove 3.4, allowing the interception angle adjustment assembly 2 to slide horizontally along the through-groove 3.4, thus flexibly changing the installation position of the device according to the actual distribution of the reinforcing bars within the beam-column joint. After the position is determined, the connector 2.1 is locked to the transverse connector 3.3 using bolts or pins.

[0047] In this embodiment, as Figure 12 As shown, the limiting component 4 includes a connecting handle 4.1, a support through hole 4.2, a first locking piece 4.3, a top bolt 4.4, a transverse bolt 4.5, a second locking piece 4.6, and a locking piece nut 4.7.

[0048] The connecting handle 4.1 serves as a transitional component between the limiting assembly 4 and the lifting assembly 3. A support through hole 4.2 is provided on the connecting handle 4.1. The connecting limiting screw passes through the fastening through hole 3.2 on the lifting handle 3.1 and the support through hole 4.2 on the connecting handle 4.1. A front limiting nut and a rear limiting nut are screwed onto the front and rear sides of the lifting handle 3.1, respectively. By tightening the front and rear nuts in opposite directions, the lifting handle 3.1 is clamped in the set position. Through this connection, any rotational torque or horizontal thrust generated by the lateral interception assembly 1 due to the unilateral pressure of flowing concrete will be transmitted to the limiting assembly 4 through the lifting handle 3.1 and the connecting limiting screw, thereby achieving absolute anti-rotation and anti-displacement of the main device.

[0049] The first clamping component 4.3 and the second clamping component 4.6 are the core clamping structures of the limiting component 4. Both have clamping grooves, and the clamping grooves on the first clamping component 4.3 and the second clamping component 4.6 are arranged opposite to each other to form a clamp-like structure. The first clamping component 4.3 and the second clamping component 4.6 both have transverse through holes and top through holes. The transverse bolt 4.5 passes through the transverse through holes of the first clamping component 4.3 and the second clamping component 4.6 and connects to the clamping nut 4.7. By tightening the transverse bolt 4.5, the side walls of the two clamping components are tightly fitted together, locking the longitudinal reinforcing bar 5. The top bolt 4.4 passes through the top through hole, is screwed vertically in, and presses against the upper surface of the longitudinal reinforcing bar to limit the vertical degree of freedom of the device.

[0050] The second clamp 4.6 has a sliding cavity 4.8 on one protruding end, and the first clamp 4.3 has one protruding end slidably disposed within the sliding cavity 4.8. This sliding design allows the first clamp 4.3 and the second clamp 4.6 to flexibly adapt to longitudinal steel bars with different spacings on the construction site. During installation, the operator stretches or contracts the two clamps to engage with the longitudinal steel bars, and uses an electric wrench to quickly tighten the transverse bolt 4.5 and the top bolt 4.4 to achieve geometric locking, thereby firmly anchoring the limiting component 4 to two adjacent steel bars 5.

[0051] It is understandable that the sliding cavity 4.8 can be set on the second card 4.6 or the first card 4.3, as long as it can achieve adjustment between the first card 4.3 and the second card 4.6.

[0052] The transverse variable amplitude concrete interception device provided in this embodiment is operated according to the following steps during construction.

[0053] The first step is construction preparation and interception module assembly. Based on the actual beam height, beam width, and longitudinal reinforcement density of the beam-column joint area at the construction site, select an appropriate number and type of transverse interception components 1. Align the selected transverse interception components 1 sequentially using the side sliding guides 1.4, insert the bidirectional transmission screw 1.1, and after horizontal limiting is achieved using the sliding guide rail assembly 1.7, tighten the fastening limit handle at the top of the bidirectional transmission screw 1.1. This rigidly connects multiple sets of baffles vertically to form an interception wall in a fully retracted state.

[0054] The second step involves lowering the device and anchoring it at the top to prevent rotation. The retracted intercepting devices are grouped and inserted vertically or diagonally into the beam reinforcement cage, positioned at the predetermined concrete interface. Limiting components 4 are installed on the top longitudinal reinforcement bars of the two adjacent beams near the column end at the intercepting interface. The first clamp 4.3 and the second clamp 4.6 are stretched or contracted to engage with the longitudinal reinforcement bars. The transverse bolt 4.5 and the top bolt 4.4 are tightened using an electric wrench to achieve geometric locking. Subsequently, the connecting handle 4.1 is fitted onto the connecting limiting screw, and the limiting nuts on both sides are tightened to complete the suspension and anti-rotation locking of the main device.

[0055] The third step is to adjust the interception surface displacement and set the oblique angle. Based on the actual density of the reinforcing bars within the node, push the connector 2.1 on the transverse connector 3.3 to allow it to slide laterally along the sliding groove 3.4, adjusting the initial horizontal position of the device. After the position is determined, observe the semi-circular angle dial and rotate the lower transverse interception component 1 to the required oblique angle around the transverse connecting shaft. Once the angle is in place, use the positioning protrusion 2.7 on the lower connector 2.6 to engage with the positioning teeth 2.3 on the lifting lug 2.2, and tighten the limiting nut on the transverse connecting shaft to rigidly lock the oblique angle of the interception line.

[0056] The fourth step involves lateral mechanical expansion and flexible grout sealing. The bidirectional transmission screw 1.1 inside the rotating sliding guide 1.4 converts the torque of the screw into the linear displacement of the sliding plate 1.2, which in turn compresses the scissor-type telescopic frame 1.3 to generate lateral thrust. Under this thrust, the movable baffle 1.6 performs sequential actions. The outermost secondary movable baffle slides outward along the sliding guide assembly 1.7 first, and then, upon reaching the mechanical limit point, forcibly drags the primary movable baffle to continue expanding outward. Until the baffle is pushed to the structural boundary, its outer flexible skirt 1.8 undergoes adaptive deformation under pressure, tightly wrapping and fitting the surface of the longitudinal reinforcing bars and the internal gaps of the skeleton, completing the construction of the sealed grout-blocking interception surface.

[0057] Step 5: Bottom adaptive limiting anchoring. Under the application of downward installation clamping force or the weight of the device itself, the bottom skirt 1.9, fixed at the bottom end of the bidirectional transmission screw 1.1, plays an anti-slip role. If the bottom formwork is wooden, the anti-slip teeth on the bottom surface of the bottom skirt 1.9 directly penetrate and embed into the bottom formwork; if the bottom reinforcement is dense, the bottom skirt 1.9 is adjusted so that its side directly abuts against the side of the transverse stirrups or longitudinal reinforcement at the bottom of the beam to form a geometric lock. Utilizing the double-support constraint formed by this bottom anchoring and the top limiting component 4, the absolute stability of the device under subsequent pressure is ensured.

[0058] Step 6: High-strength concrete pouring. After ensuring the overall rigidity of the device and the sealing of the interception surface are correct, high-strength concrete, i.e., column end concrete, is poured at the interception line.

[0059] Step 7: Demolding and non-destructive removal of the device structure. After the high-strength concrete has been poured and is in the pre-setting stage, possessing some self-supporting ability but not yet fully hardened, rotate the bidirectional transmission screw 1.1 in the reverse direction. The scissor-type telescopic frame 1.3 generates tension, sequentially dragging the secondary and primary movable baffles back into the reference groove of the fixed baffle 1.5. Subsequently, loosen the limiting nuts on both sides of the lifting assembly 3 and the fastening bolts on the first and second clamps 4.3 and 4.6 in the reverse direction. The operator holds the lifting handle 3.1 and applies even upward force to remove the retracted intercepting device from the concrete without damage. After cleaning, it is ready for future reuse.

[0060] Step 8: Low-strength concrete pouring. After the interception device is pulled out as a whole, low-strength concrete is continuously poured on the other side of the interception line, that is, at the beam end. Moderate and standardized vibration is carried out in the junction area to make the high-strength and low-strength concrete interlock and interlock at the pre-set oblique interface to form a dense and continuous transition section.

[0061] Based on the above embodiments, the present invention may have further variations.

[0062] In another variant implementation, the lateral interception component 1 may consist of only a primary movable baffle without a secondary movable baffle, i.e., a two-stage overlapping structure instead of a three-stage overlapping structure. This implementation is suitable for scenarios with a small range of beam width variation, where the expansion requirements can be met by the lateral sliding of the primary movable baffle, simplifying the mechanical structure and reducing manufacturing costs. Correspondingly, the number of stages of the scissor telescopic frame 1.3 can also be reduced, with power transmission achieved using a single-stage X-shaped cross member.

[0063] In another variant embodiment, the flexible skirt 1.8 can be made of other flexible materials, such as rubber, silicone, or flexible metal sheets, as long as the material has sufficient deformation toughness and wear resistance, and can adapt to deformation under pressure and fit tightly against the surface of the reinforcing bar. The comb-like structure of the flexible skirt 1.8 can also be changed to a wavy, sawtooth, or other irregular shape, as long as it can fill the irregular gaps inside the reinforcing bar skeleton.

[0064] In another variant embodiment, the first locking member 4.3 and the second locking member 4.6 of the limiting component 4 can adopt other shapes of locking structures, such as U-shaped, V-shaped, or arc-shaped locking members, as long as they can encircle the longitudinal reinforcing bar and achieve a tight lock. The transverse bolt 4.5 and the top bolt 4.4 can also be replaced by other fastening methods, such as quick-release buckles, hydraulic clamping, or magnetic fixation, as long as they can achieve a stable anchoring connection with the longitudinal reinforcing bar.

[0065] In another variant embodiment, the sliding groove 3.4 on the transverse connector 3.3 of the lifting assembly 3 can be replaced with multiple positioning holes spaced apart along the length direction. The connector 2.1 adjusts its horizontal position by engaging with different positioning holes using pins. Although this embodiment has limited adjustment ranges, its structure is simpler and more reliable, making it suitable for precast component scenarios with standardized rebar spacing.

[0066] In another variant, the positioning teeth 2.3 of the interception angle adjustment component 2 can be replaced with a friction locking disc or a wedge-shaped locking block, achieving angle locking through friction or wedge clamping force instead of tooth engagement. The positioning protrusions 2.7 on the lower connector 2.6 are correspondingly replaced with friction surfaces or wedge clamping surfaces. This embodiment allows for stepless angle adjustment, but the locking force is relatively small, making it suitable for scenarios with low concrete lateral pressure.

[0067] In another variant embodiment, the bidirectional transmission screw 1.1 can be replaced by a linear drive device such as a hydraulic cylinder, pneumatic cylinder, or electric push rod, as long as it can drive the sliding plates 1.2 to move in opposite directions or away from each other. Correspondingly, the scissor-type telescopic frame 1.3 can also be replaced by other telescopic transmission mechanisms, such as a gear and rack mechanism, a linkage mechanism, or a belt drive mechanism, as long as it can convert linear motion into the telescopic motion of the lateral interception component 1.

[0068] In another variant embodiment, the bottom skirt 1.9 can be independently disposed at the bottom end of the bidirectional transmission screw 1.1, or it can be integrally formed with the bottommost fixed baffle 1.5. The anti-slip teeth on the bottom skirt 1.9 can adopt various shapes such as conical teeth, rhomboid teeth, or wavy teeth, as long as they can penetrate the wooden template or abut against the reinforcing steel to form an effective limit.

[0069] The transverse variable-amplitude concrete interception device provided by this invention achieves the following technical effects through the coordinated operation of the aforementioned components. The telescopic design of the transverse interception component 1 allows the device to be inserted into a densely packed, crisscrossing steel reinforcement skeleton in its retracted state, and then laterally expanded to abut against the structural boundary after positioning, thus solving the technical problem of the inability to insert integral rigid baffles due to their fixed width. The anchoring connection between the limiting component 4 and the longitudinal reinforcement at the top of the beam effectively resists the deflection moment caused by the lateral pressure of the flowing concrete, ensuring high rigidity and positional stability of the interception interface and avoiding defects such as bulging and cracking of the closing mesh and deformation and floating of the airbag. The lifting component 3 allows the device to be uniformly lifted after use, enabling repeated use of the interception device and avoiding material waste and environmental pollution caused by traditional disposable consumables. The interception angle adjustment component 2 enables adaptive adjustment of the oblique angle of the interception surface, allowing the interception surface to conform to the principal tensile stress trajectory of the node, providing the optimal shear force transmission path, and ensuring a smooth transition and tight interlocking of high and low strength concrete grades. The double-support constraint formed by the bottom limiting component and the top limiting component 4 further enhances the overall stability of the device, ensuring that the position of the interception interface does not shift during the entire concrete pouring process.

[0070] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A transverse variable amplitude concrete interception device, characterized in that, Includes lifting components, interception angle adjustment components, limit components, and several lateral interception components; The limiting component is connected to the lateral interception component to prevent the lateral interception component from rotating during use; The lifting component is connected to the lateral interception component via the interception angle adjustment component, and is used to uniformly lift out the lateral interception component after use.

2. The transverse variable amplitude concrete interception device according to claim 1, characterized in that, The lateral interception assembly includes a telescopic baffle group, a telescopic power device, and a telescopic transmission device; The telescopic power device is connected to the telescopic baffle group through the telescopic transmission device, and is used to drive the telescopic baffle group to extend and retract.

3. The transverse variable amplitude concrete interception device according to claim 2, characterized in that, The telescopic baffle assembly includes a fixed baffle and several movable baffles; The movable baffle is sleeved on the fixed baffle, and the movable baffles are connected to each other.

4. The transverse variable amplitude concrete interception device according to claim 3, characterized in that, The movable baffles are slidably connected by a sliding guide rail assembly; The movable baffle and the fixed baffle are slidably connected by a sliding guide rail assembly.

5. The transverse variable amplitude concrete interception device according to claim 3, characterized in that, The movable baffle at the farthest end after unfolding has a flexible skirt at the end furthest from the fixed baffle.

6. The transverse variable amplitude concrete interception device according to claim 2, characterized in that, The telescopic transmission device includes a bidirectional transmission screw and a scissor-type telescopic frame; The bidirectional transmission screw has two sections of external driving threads symmetrically arranged along the middle, and the helical directions of the two sections of external driving threads are opposite. One end of the scissor-type telescopic frame is connected to the telescopic baffle group, and the two protruding ends of the other end of the scissor-type telescopic frame are respectively connected to the two sections of the driving external thread on the bidirectional transmission screw.

7. The transverse variable amplitude concrete interception device according to claim 1, characterized in that, The interception angle adjustment assembly includes a connector, a lug, and a lower connector. One end of the connector is connected to the lifting assembly, and the other end is provided with a lifting lug; The lower connecting piece is connected to the lifting lug by bolts; One side of the lifting lug has a positioning tooth, and one end of the lower connector has a positioning protrusion that matches the positioning tooth.

8. The transverse variable amplitude concrete interception device according to claim 7, characterized in that, The lifting assembly includes a lifting handle and a lateral connector; The lifting handle is fixedly installed on the side wall of the transverse connector; The transverse connector has a sliding groove that runs through the length direction; The connector is slidably disposed within the sliding groove.

9. The transverse variable amplitude concrete interception device according to claim 1, characterized in that, The limiting component includes a first locking element, a second locking element, several transverse bolts, and several top bolts; Both the first card and the second card have card slots, and the card slots on the first card and the second card are arranged opposite to each other; Both the first card and the second card have a horizontal through hole and a top through hole; The transverse bolt passes through the transverse through holes of the first and second clamps and is connected to the clamp nut; The top bolt passes through the top through hole and can abut against the reinforcing bar.

10. The transverse variable amplitude concrete interception device according to claim 9, characterized in that, The first card has a sliding cavity on one of its protruding ends; One of the protruding ends of the second card is slidably disposed within the sliding cavity.

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