Bearing device for mounting cantilever beam in building construction

Abstract

The invention relates to a bearing device for mounting a building construction cantilever beam. The bearing device comprises a moving seat, a swing knocking assembly, a bearing assembly and a driving assembly. Lifting columns are evenly and vertically arranged on the top of the moving seat upwards, a supporting platform is arranged on the tops of the lifting columns, a bracket is fixed to the tops of the two telescopic rods adjacent in the front-back direction so that a cantilever beam bottom die can be clamped in the bracket, a driving motor is fixed to the supporting platform, and the output end of the driving motor is in transmission connection with a reverse screw. The two sliding blocks are oppositely arranged on the reverse screw and the transverse shaft and can synchronously move oppositely or oppositely along the reverse screw. The main shaft is rotationally arranged above the sliding block; the outer end of the main shaft is fixedly sleeved with a gear, and the gear is meshed with the rack. The inner end of the main shaft is fixedly connected with an eccentric wheel on which the knocking block is mounted. Precise positioning of the bottom die can be guaranteed, full-coverage dynamic knocking can be carried out on the template before die stripping, concrete adhesion is effectively avoided, and the construction efficiency and quality are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a supporting device for installing a cantilever beam in building construction. Background Art

[0002] A cantilever beam is a beam in a building structure that is securely fixed to the main structure at one end while remaining suspended in the air at the other, independent of any other supporting structure. The cantilever beam design minimizes the space occupied by a building's interior, providing residents or users with a more spacious and flexible spatial experience. More importantly, as part of the building structure, the cantilever beam bears a significant load-bearing role, effectively distributing the load and ensuring the building's overall stability and safety.

[0003] During the construction process, cantilever beams need to be formed by pouring concrete after building a steel cavity through a formwork. However, traditional support devices mostly rely on welding technology to fix the steel frame, which makes the formwork installation prone to tilt deviation, which directly affects the structural accuracy and bearing capacity of the cantilever beam. In severe cases, it affects the support effect of the cantilever beam. That is, traditional support devices are mostly fixed by welding. After use, the staff must cut and disassemble them. After disassembly, the welded support frame will have problems such as deformation of the connection nodes and attenuation of the steel strength. The reuse rate is low, resulting in a waste of resources. In addition, when demolding the beam formwork, since the concrete and the formwork will stick together, manual violent hammering is often required, which can easily lead to an increase in the formwork loss rate and low dismantling efficiency, and may even affect the quality of the formed cantilever beam.

[0004] Based on this, it is necessary to study a new type of supporting device for cantilever beam installation in construction that can not only provide support for the beam formwork but also facilitate demoulding. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a supporting device for installing cantilever beams in construction, which effectively solves the problems of insufficient stability and easy tilting of formwork support, adhesion after demolding, and poor reusability of welding support devices in existing cantilever beam construction.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a supporting device for installing a cantilever beam in construction, comprising a moving seat, a swinging and knocking assembly, a supporting assembly and a driving assembly; a lifting column is evenly arranged vertically upward on the top of the moving seat, and a supporting platform is provided on the top of the lifting column; the supporting assembly comprises a base, a telescopic rod and a bracket, and multiple groups of bases are evenly distributed on the supporting platform, and the bottom of the telescopic rod is fixed on the base and extends vertically upward; the bracket is fixed on the top of the two adjacent telescopic rods in front and behind, so that the cantilever beam bottom mold is clamped in the bracket; the driving assembly comprises a driving motor, a slider, a counter screw and a horizontal shaft; the driving motor The machine is fixed on the supporting platform, and the counter-screw is rotatably arranged on the supporting platform and is transmission-connected to the output end of the driving motor; the transverse axis is arranged on the supporting platform and is parallel to the counter-screw; two sliders are relatively arranged on the counter-screw and the transverse axis, and can move synchronously relative to or toward each other along the counter-screw; a rack is fixed on the supporting platform outside the counter-screw; the swinging and knocking assembly includes a main shaft, an eccentric wheel, a gear and a knocking block; the main shaft is rotatably arranged above the slider; a gear is fixedly mounted on the outer end of the main shaft, and the gear is meshed with the rack; the inner end of the main shaft is fixedly connected to the eccentric wheel, and the knocking block is installed on the eccentric wheel, and its top is coplanar with the bracket.

[0007] Furthermore, a telescopic rocker arm is hinged on the eccentric wheel, a vertical frame is fixed on the top of the slider, the top is rotated and fitted on the secondary shaft, the secondary shaft extends toward the inside of the eccentric wheel, the bottom of the telescopic rocker arm is hinged on the eccentric wheel, and its top is rotated and fitted on the secondary shaft.

[0008] Furthermore, a connecting block is provided on the side wall of the telescopic rocker arm, and the knocking block is fixed on the connecting block and extends obliquely upward toward the bottom mold of the cantilever beam.

[0009] Furthermore, the telescopic rocker arm includes a fixed section and a telescopic section, the bottom of the fixed section is hinged on the eccentric wheel, the inner end of the telescopic section is slidably sleeved in the fixed section, and a spring is fixedly connected between the two, the outer end of the telescopic section is rotatably connected to the vertical frame through a secondary shaft, and the connecting block is fixed on the side wall of the fixed section of the telescopic rocker arm.

[0010] Furthermore, the striking blocks are evenly fixed on the edge of the eccentric wheel along the circumference.

[0011] Furthermore, a striking head is elastically and telescopically connected to the top of the striking block, and the striking head has an arc-shaped structure on a side adjacent to the template.

[0012] Furthermore, a U-shaped frame is fixed on the two adjacent knocking blocks in front and behind, the side wall of the U-shaped frame is fixedly connected to a top spring, and the top of the top spring is connected to an arc-shaped top head; elastic telescopic top blocks are evenly distributed inside the U-shaped frame.

[0013] Furthermore, each elastic telescopic top block is fixed in the U-shaped frame by a spring, and the top surface of each top block is flush with the top surface of the arc-shaped top head. Driving the eccentric wheel to rotate can synchronously drive the arc-shaped top head and top block in the U-shaped frame to evenly strike the bottom of the template.

[0014] Furthermore, six groups of bases are evenly fixed on the supporting platform, screw holes and shaft holes are opened in the bases, the reverse screw is threadedly connected to the screw holes of the bases, the horizontal axis is rotatably sleeved in the shaft holes, and the two reverse thread sections on the reverse screw are symmetrically arranged on the left and right sides of the base in the middle position, so that the sliders are staggered between adjacent bases.

[0015] Furthermore, the support has a U-shaped structure, and the support includes a base plate and an elastically retractable guard plate. The base plate is fixed on the top of the telescopic rod, and the guard plate is slidably inserted in the side wall of the base plate to adapt to cantilever beam bottom molds of different widths.

[0016] The beneficial effects of the above technical solution are as follows: the supporting device for installing cantilever beams in construction provided by the present invention constructs an adaptive supporting system through an adjustable U-shaped bracket and a telescopic sleeve rod to ensure the precise positioning of the bottom formwork; the swinging and striking assembly, driven by a counter-screw and linked to the gear rack, uses the combined motion of the eccentric wheel rotation and the lateral movement of the slider to implement full-coverage dynamic striking of the formwork, effectively preventing concrete adhesion; the use of plug-in guard plates and threaded connection structures replaces welding processes, improving the efficiency of assembly and disassembly of the device and the turnover rate. The overall solution achieves a synergistic improvement in support stability, ease of demolding, and device reusability through mechanical transmission optimization and modular design, thereby reducing construction costs and quality risks.

[0017] The supporting assembly of the present invention forms a multi-point support system through six groups of bases and telescopic rods distributed in a rectangular array, and combines the elastic guard plate structure of the U-shaped bracket to achieve precise positioning and adaptive clamping of the bottom mold; thereby, the elastic extension and contraction of the guard plate and the fine-tuning function of the telescopic rod enable the device to adapt to bottom molds of different sizes, solving the problem of poor adaptability of traditional welding support devices. The rectangular array layout is combined with scale line calibration to ensure uniform distribution of supporting force, effectively avoiding tilting or deformation of the bottom mold due to local uneven force; at the same time, the telescopic rod adopts a double-layer sleeve structure, and the inner sleeve is fixed by a lock wire after precise height adjustment through the scale line, ensuring that the elevation of each support point is consistent, ensuring the accuracy and balance of the bottom mold installation, ensuring the horizontality and stability of the bottom mold installation, and reducing the hard friction damage between the template and the guard plate through elastic contact, effectively avoiding the cantilever beam forming quality problems caused by uneven bottom mold installation, thereby improving the project quality.

[0018] The setting of the swinging knocking assembly of the present invention effectively expands the coverage of the knocking through the lateral movement of the slider, and the gear rack transmission cleverly converts the linear motion into rotational motion, thereby realizing the compound action of knocking while moving, making the knocking process more comprehensive and efficient, and can evenly impact the contact surface between the bottom form and the concrete, and can also adjust the mechanism of the telescopic rod and the knocking block, so that on the basis of fine-tuning the precise positioning of the support height, through the compound knocking action with adjustable frequency and strength, the adhesion layer between the formwork and the concrete is effectively destroyed, and finally the coordinated optimization of support stability and demolding efficiency is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of an embodiment of the present invention; Figure 2 Schematic diagram of the implementation structure of the support platform of the present invention; Figure 3 Schematic diagram of the supporting structure of the present invention; Figure 4 Schematic diagram of the implementation structure of the drive assembly of the present invention; Figure 5 Schematic diagram of the implementation structure of the swing striking assembly of the present invention; Figure 6 Schematic diagram of different structural assembly of the knocking block; Figure 7 It is a schematic structural diagram of another embodiment of the knocking block.

[0020] Figure markings: 1-wall, 2-cantilever beam, 3-bottom mold, 4-movable seat, 5-lifting column, 6-support platform, 7-drive assembly, 71-drive motor, 72-motor seat, 73-counter screw, 74-horizontal axis, 75-rack, 76-pad, 8-support assembly, 81-base, 82-telescopic rod, 83-bracket, 831-bottom plate, 832-guard plate, 833-spring, 834-insertion rod, 9-swinging and knocking assembly, 91-main shaft, 92-shaft seat, 93-eccentric wheel, 94-telescopic rocker arm, 941-fixed section, 942-telescopic section, 943-connecting block, 95-knocking block, 951-striking head, 96-secondary shaft, 97-vertical frame, 98-gear, 10-U-shaped frame, 11-arc-shaped top head, 12-top block. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments: Example 1. This embodiment aims to provide a supporting device for installing cantilever beams in construction, which is mainly used to provide support for cantilever beams. In view of the problems in the prior art of the supporting device assembled by welding, such as the template installation is easy to tilt, which affects the cantilever beam forming structure and support effect, the template removal is easy to stick to the concrete, which consumes manpower and slows down the construction progress, and the disassembly after welding is troublesome, the welding marks are difficult to remove, the connection stability and reusability of the supporting device are reduced, and the risk of resource waste is increased, this embodiment provides a supporting device for installing cantilever beams in construction. The device can not only provide support for the cantilever beam template, ensure that the bottom template is installed flat and stable, but also its knocking component can prevent the bottom template from sticking to the concrete when it is removed, thereby ensuring the quality of the bottom template, thereby improving construction efficiency, reducing resource loss and construction risks, and enhancing the overall quality and safety of construction.

[0022] like Figure 1-6 As shown, a supporting device for installing a cantilever beam 2 in construction includes a movable seat 4, a swinging and striking assembly 9, a supporting assembly 8 and a driving assembly 7; wherein a cantilever beam 2 is horizontally inserted at the upper end of a wall 1, and templates are supported around the outer side of the cantilever beam 2, and the templates are connected to each other and fixed to the outer side of the wall 1 by fixing parts. The supporting device provided in this embodiment is located below the bottom template of the cantilever beam, thereby providing support for the template supported outside the cantilever beam 2, thereby ensuring the molding quality of the cantilever beam.

[0023] In the specific implementation structure, such as Figure 1 As shown, in this embodiment, four lifting columns 5 are evenly arranged vertically on the top of the moving seat 4, and rollers are provided at the bottom of the moving seat 4 for easy movement. A support platform 6 is fixed to the top of the lifting column 5 in the horizontal direction, wherein the swinging and knocking component 9, the supporting component 8 and the driving component 7 are all arranged on the support platform 6. The lifting column 5 here can adopt a power element with linear lifting function such as a hydraulic cylinder, an air cylinder or an electric push rod to realize the height adjustment of the support platform 6, which can not only meet the rigidity requirements of the top support and the bottom mold, but also adapt to the elevation adjustment requirements of different construction scenarios.

[0024] like Figure 2 and 3 As shown, the supporting assembly 8 includes a base 81, a telescopic rod 82 and a bracket 83. In this embodiment, there are six groups of bases 81 evenly spaced on the supporting platform 6 to form a rectangular array structure; the telescopic rod 82 is fixed on the base 81, and the telescopic rod 82 extends vertically upward, and the tops of the two adjacent telescopic rods 82 are fixed with U-shaped brackets 83. The bottom mold 3 of the cantilever beam 2 is fixedly mounted in the three groups of brackets 83 and is supported by the vertical movement of the lifting column 5.

[0025] Furthermore, if Figure 3As shown, in this embodiment, the bracket 83 includes a base plate 831 and an elastically retractable guard plate 832, wherein the base plate 831 is fixed to the top of the telescopic rod 82, and slots are fixed at the front and rear ends of the base plate 831. A plug rod 834 is fixed on the side wall of the guard plate 832, and the plug rod 834 is slidably inserted into the slot, and a spring 833 is fixedly connected between the deep part of the slot and the end of the plug rod 834. In the natural state, under the action of the spring 833, the plug rod 834 on the slide is pulled to make the guard plate 832 close to the two side edges of the base plate 831. When the bottom mold needs to be installed, the guard plate 832 can be pulled outward to fix the bottom mold 3 in the bracket 83, and then the bottom mold 3 is driven by the lifting column 5 to move it vertically upward for easy installation. At the same time, by adjusting the tensioning strength of the guard plate 832, it can adapt to cantilever beam bottom molds of different widths.

[0026] In addition, in this embodiment, the telescopic rod 82 is a double-layer sleeve structure, the outer sleeve is fixed on the base 81, and the inner sleeve is slidably mounted in the outer sleeve, and its top is fixedly connected to the bracket 83. The height of the bottom mold 3 in the bracket 83 can be fine-tuned by adjusting the height of the inner sleeve up and down. After the adjustment is completed, it can be limited by fasteners such as lock wires. Furthermore, in order to ensure the consistency of the height adjustment of each telescopic rod 82, scale lines can also be drawn on the outer side wall of the inner sleeve to ensure that the height adjustment of each telescopic rod 82 is consistent, to ensure that the bottom mold located in the bracket remains balanced, and to avoid tilting during installation of the bottom mold, thereby affecting the molding quality of the cantilever beam.

[0027] like Figure 4 As shown, each base 81 is provided with a screw hole and a through-hole, and the screw holes and through-holes on the front and rear rows of bases 81 are respectively concentrically arranged to accommodate the counter-screw 73 and the transverse shaft 74 of the drive assembly 7. Specifically, in this embodiment, the drive assembly 7 includes a drive motor 71, a slider, a counter-screw 73, and a transverse shaft 74; wherein the drive motor 71 is fixed to the support platform 6 via a motor base 72, and the counter-screw 73 is rotatably arranged on the support platform 6 in the left-right direction and is transmission-connected to the output end of the drive motor 71. The counter-threaded screw is threadedly connected to the screw hole of the base 81, so that the two counter-threaded sections on the counter-screw 73 are symmetrically arranged on the left and right sides of the base 81 at the middle position.

[0028] The horizontal axis 74 is located below the anti-screw 73 and is fixedly sleeved in the through-hole of the base 81, and the horizontal axis 74 is arranged parallel to the anti-screw 73, and the two sliders are arranged relatively on the anti-screw 73 and the horizontal axis 74, that is, the two sliders are respectively provided with a threaded hole and an axial hole adapted to the horizontal axis 74, so that the anti-screw 73 is threadedly connected in the threaded hole, and the horizontal axis 74 is slidably sleeved in the axial hole, and the two sliders are respectively threadedly connected to the two threaded sections of the anti-screw 73. When the driving motor 71 is controlled to rotate the anti-screw 73, the two sliders can be driven to move synchronously relative to or toward each other along the extension direction of the anti-screw 73, so as to drive the swinging and knocking assembly on the slider to knock the bottom mold 3; a rack 75 is also fixed on the support platform 6 outside the anti-screw 73 through a pad.

[0029] like Figure 5 and 6 As shown, the swinging knocking assembly 9 includes a main shaft 91, an eccentric wheel 93, a gear 98 and a knocking block 95. A shaft seat 92 is fixed on the top of the slider. The main shaft 91 is rotatably mounted in the shaft seat 92. The outer end of the main shaft 91 is fixedly mounted with a gear 98, and the gear 98 is engaged with the rack 75. The inner end of the main shaft 91 is fixedly connected to the eccentric wheel 93. The knocking block 95 is installed on the eccentric wheel 93, and the top of the knocking block 95 is in contact with the bottom mold of the cantilever beam.

[0030] In this way, when the slider moves back and forth laterally along the counter screw 73, the main shaft 91 can be driven to rotate through the engagement of the gear 98 and the rack 75, and then the eccentric wheel 93 can be rotated, thereby driving the knocking block 95 to knock the bottom mold 3 evenly, and with the relative movement of the two sliders, the bottom mold 3 can be struck more comprehensively with uniform frequency and force, which facilitates the separation of the bottom mold 3 from the concrete and avoids the bottom mold 3 from sticking to the concrete during dismantling, thereby affecting the molding quality of the cantilever beam 2.

[0031] Furthermore, in practice, the installation of the knock block 95 and the eccentric wheel 93 can be as follows: Figure 6 As shown in the middle right figure, the knocking blocks 95 are evenly fixed on the edge of the eccentric wheel 93 along the circumference. When the eccentric wheel 93 rotates and moves laterally, the knocking blocks 95 arranged on the circumference can be used to perform continuous striking operations. In addition, in actual application, it can also be set as follows Figure 6 Middle left picture and Figure 5The structure shown in FIG. 1 specifically comprises a telescopic rocker arm 94 hingedly mounted on an eccentric wheel 93. The telescopic rocker arm 94 comprises a fixed section 941 and a telescopic section 942. The fixed section 941 is hinged at its bottom to the eccentric wheel 93. The inner end of the telescopic section 942 slides within the fixed section 941, with a spring 833 fixedly connected therebetween. The outer end of the telescopic section 942 is rotatably connected to a vertical frame 97 via a secondary shaft 96. This vertical frame 97 is fixed to the top of the slider and extends vertically upward. A secondary shaft 96 is rotatably mounted on its top. This secondary shaft 96 extends toward the inside of the eccentric wheel 93 and is driven and mounted within the telescopic section 942 of the telescopic rocker arm 94. A connecting block 943 is also provided on the sidewall of the fixed section 941 of the telescopic rocker arm 94. A striking block 95 is fixed to this connecting block 943 and extends obliquely upward toward the bottom mold 3 of the cantilever beam 2.

[0032] In this way, when the eccentric wheel 93 is driven to rotate, the eccentric wheel 93 drives the telescopic rocker arm 94 to rotate along the circumference, and the striking block on the telescopic rocker arm 94 can be used to continuously strike the bottom mold 3. In this embodiment, the top of the striking block is elastically and telescopically connected to a striking head 951, and the striking head 951 has an arc-shaped structure on the side adjacent to the template. The striking head 951 can be movable and telescopic through the spring 833, so that when it is rotated to the upper position, the elastic expansion of the striking head 951 can be used to strike the bottom mold 3, and then cooperate with the lateral movement of the slider to achieve striking while walking, thereby performing a comprehensive and uniform striking operation on the cantilever beam template, effectively avoiding adhesion between the template and the concrete.

[0033] Furthermore, in this embodiment, the coupling effect of the fine adjustment of the height of the supporting component 8 and the dynamic knocking of the swing knocking component 9 can also achieve efficient adaptation of the formwork support and demoulding operations, that is, when the double-layer sleeve structure of the telescopic rod 82 accurately adjusts the height of the bracket 83 through the scale line, it can not only ensure the horizontality of the installation of the bottom form 3, but also can adjust the contact distance between the knocking block 95 and the bottom form 3 in a linked manner, thereby controlling the compression amount of the elastic telescopic rocker 94 in the knocking component, so that the impact force of the striking head 951 on the formwork is dynamically adapted to the solidification state of the concrete; at the same time, the driving component drives the slider to move horizontally through the counter-screw 73, and the gear The wheel 98 and rack 75 drive the linear motion of the slider into the rotational motion of the eccentric wheel 93, so that the knocking block 95 moves along the length direction of the bottom mold 3 while driving the telescopic rocker 94 to swing periodically through the eccentric wheel 93. Combined with the elastic clamping constraint of the guard plate 832 on the bottom mold 3, it not only ensures the stability of the template during the knocking process, but also makes the knocking force evenly cover the contact surface between the template and the concrete. Therefore, on the basis of precise positioning of fine-tuning the support height, the composite knocking action with adjustable frequency and strength can effectively destroy the adhesion layer between the template and the concrete, and finally achieve the coordinated optimization of support stability and demoulding efficiency.

[0034] Explanation of working principle: The supporting device for installing cantilever beams in construction provided by this embodiment, in actual application, first pushes the movable seat 4 to the predetermined position below the bottom formwork of the cantilever beam by means of rollers, adjusts the height of the supporting platform 6 by means of the lifting column 5 so that the supporting assembly 8 is close to the bottom formwork 3, and then manually pulls the elastic guard plate 832 of the supporting seat 83 to clamp the bottom formwork 3 into the U-shaped supporting seat 83, and utilizes the reset force of the spring 833 to make the guard plate 832 fit tightly against both sides of the formwork to complete the clamping and fixing. At this time, the height of each supporting seat 83 is accurately fine-tuned by means of the double-layer sleeve structure of the telescopic rod 82 in conjunction with the scale line, and the bottom formwork 3 is ensured to be in a horizontal state and then locked and fixed; during the concrete pouring and curing stage, the multi-point elastic support system of the supporting assembly 8 continuously provides stable supporting force to ensure the cantilever beam 2. Molding quality. When the demolding strength is reached, the drive motor 71 is started to drive the counter screw 73 to rotate, so that the two sliders move synchronously in opposite directions along the horizontal axis 74. During the process, the gear 98 and the rack 75 are engaged to drive the main shaft 91 to drive the eccentric wheel 93 to rotate. The telescopic rocker 94 on the eccentric wheel 93 enables the knocking block 95 to perform continuous and uniform elastic knocking on the bottom mold 3. The knocking force is accurately controlled by the pre-adjusted height of the bracket 83 and the telescopic amount of the rocker. Under the combined movement of the lateral movement of the slider and the rotation of the eccentric wheel 93, the knocking force fully covers the contact surface between the bottom mold 3 and the concrete, effectively destroying the adhesion layer, and finally achieving efficient demolding while ensuring that the template is not damaged. After completing the operation, the guard plate clamping is released and the lifting column is lowered to remove the device for demolding.

[0035] The supporting device for installing cantilever beams in construction provided by the present invention can achieve rapid positioning and height adjustment through a movable seat and a lifting column. In conjunction with the elastic guard plate and the adjustable telescopic rod structure of the supporting component, it can adapt to cantilever beam bottom molds of different sizes and provide stable support, thereby ensuring construction accuracy; the swinging and knocking component works in coordination with the driving component, and the slider movement driven by the counter-screw and the eccentric wheel rotation driven by the gear rack can achieve uniform and controllable knocking on the bottom mold, effectively solving the problem of concrete adhesion during traditional demolding; the entire device adopts a modular non-welded design, which is not only convenient for disassembly, transportation and reuse, but also avoids the weakening of structural strength due to welding, significantly improving construction efficiency and quality, while reducing manpower and material consumption, providing a safe, reliable and economical and efficient solution for cantilever beam construction.

[0036] Example 2, based on Example 1, the same points as Example 1 are not repeated here, and this example provides another installation structure for the knocking block.

[0037] like Figure 7As shown, in this embodiment, a U-shaped frame 10 is fixed on two adjacent knocking blocks in the front and rear, a top spring is fixedly connected to the side wall of the U-shaped frame, the top of the top spring is connected to the arc-shaped head 11, and elastic telescopic top blocks 12 are evenly distributed inside the U-shaped frame. Furthermore, each elastic telescopic top block is fixed in the U-shaped frame by a spring, and the top surface of each top block is flush with the top surface of the arc-shaped head. Driving the eccentric wheel to rotate can synchronously drive the arc-shaped head 11 and the top block 12 in the U-shaped frame to perform uniform striking operations on the bottom of the template.

[0038] In this embodiment, a U-shaped frame and a multi-stage elastic top block are added to the striking block. The arc-shaped top head connected to the top spring of the U-shaped frame side wall and the elastic telescopic top block supported by the internal spring work together to form a multi-point flexible striking system. The flush layout of the arc-shaped top head and the elastic telescopic top block expands the striking contact area, so that the striking force is dispersed to a larger area at the bottom of the formwork, avoiding local stress concentration and damage to the formwork; the independent spring buffer design of each top block can adapt to the slight undulations on the formwork surface to ensure that the striking action fits the formwork curve, and the elastic telescopic mechanism reduces the risk of rigid collision by dynamically absorbing impact energy; when the eccentric wheel is driven, the synchronous extension and contraction of multiple top blocks in the U-shaped frame and the elastic pushing of the arc-shaped top head form a composite striking trajectory, which not only enhances the uniformity of the crushing of the concrete adhesion layer, but also improves the demoulding efficiency through multi-frequency elastic impact, and finally achieves efficient and low-loss demoulding operation while ensuring the integrity of the formwork.

[0039] The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. The basic concept of the present invention is to not only provide support for the cantilever beam formwork, ensuring the flatness and stability of the bottom formwork during installation, but also to use the hammering assembly on the device to comprehensively and evenly hammer the bottom formwork, preventing the bottom formwork from adhering to the concrete during removal, thereby affecting the molding quality of the cantilever beam. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A supporting device for installing a cantilever beam in construction, characterized by: It includes a moving seat, a swinging and knocking assembly, a supporting assembly and a driving assembly; the top of the moving seat is evenly provided with lifting columns vertically upward, and the top of the lifting columns is provided with a supporting platform; the supporting assembly includes a base, a telescopic rod and a bracket, and multiple groups of bases are evenly distributed on the supporting platform. The bottom of the telescopic rod is fixed on the base and extends vertically upward; the bracket is fixed to the top of the two adjacent telescopic rods in the front and back so that the cantilever beam bottom mold is clamped in the bracket; the driving assembly includes a driving motor, a slider, a counter screw and a horizontal shaft; the driving motor is fixed on the supporting platform, and the counter screw is rotated On the supporting platform, it is in transmission connection with the output end of the driving motor; the horizontal axis is arranged on the supporting platform and is parallel to the counter screw; two sliders are arranged relatively on the counter screw and the horizontal axis, and can move synchronously relative to or toward each other along the counter screw; a rack is fixed on the supporting platform outside the counter screw; the swinging and knocking assembly includes a main shaft, an eccentric wheel, a gear and a knocking block; the main shaft is rotatably arranged above the slider; a gear is fixedly mounted on the outer end of the main shaft, and the gear is meshed with the rack; the inner end of the main shaft is fixedly connected to the eccentric wheel, and the knocking block is installed on the eccentric wheel, and its top is coplanar with the bracket.

2. The supporting device for installing a cantilever beam in construction according to claim 1, characterized in that: A telescopic rocker arm is hinged on the eccentric wheel, a vertical frame is fixed on the top of the slider, the top is rotatably sleeved on a secondary shaft, the secondary shaft extends toward the inside of the eccentric wheel, the bottom of the telescopic rocker arm is hinged on the eccentric wheel, and the top is rotatably sleeved on the secondary shaft.

3. The supporting device for installing a cantilever beam in construction according to claim 2, characterized in that: A connecting block is further provided on the side wall of the telescopic rocker arm, and the knocking block is fixed on the connecting block and extends obliquely upward toward the bottom mold of the cantilever beam.

4. The supporting device for installing a cantilever beam in construction according to claim 3, characterized in that: The telescopic rocker includes a fixed section and a telescopic section. The bottom of the fixed section is hinged on the eccentric wheel. The inner end of the telescopic section is slidably sleeved in the fixed section, and a spring is fixedly connected between the two. The outer end of the telescopic section is rotatably connected to the vertical frame through a secondary shaft, and the connecting block is fixed on the side wall of the fixed section of the telescopic rocker.

5. The supporting device for installing a cantilever beam in construction according to claim 1, characterized in that: The knocking blocks are evenly fixed on the edge of the eccentric wheel along the circumference.

6. The supporting device for installing a cantilever beam in construction according to claim 2 or 5, characterized in that: The top of the knocking block is elastically and telescopically connected with a striking head, and the striking head is in an arc-shaped structure on a side adjacent to the template.

7. The supporting device for installing a cantilever beam in construction according to claim 1, characterized in that: A U-shaped frame is fixed on the two adjacent knocking blocks, the side wall of the U-shaped frame is fixedly connected to a top spring, the top of the top spring is connected to an arc-shaped top head; elastic telescopic top blocks are evenly distributed inside the U-shaped frame.

8. The supporting device for installing a cantilever beam in construction according to claim 7, characterized in that: Each elastic telescopic top block is fixed in the U-shaped frame by a spring, and the top surface of each top block is flush with the top surface of the arc-shaped top head. Driving the eccentric wheel to rotate can synchronously drive the arc-shaped top head and top block in the U-shaped frame to evenly strike the bottom of the template.

9. The supporting device for installing a cantilever beam in construction according to claim 1, characterized in that: The six groups of bases are evenly fixed on the supporting platform. Screw holes and shaft holes are opened in the bases. The reverse screw is threadedly connected to the screw holes of the bases. The horizontal axis is rotatably sleeved in the shaft holes. The two reverse thread sections on the reverse screw are symmetrically arranged on the left and right sides of the base in the middle position, so that the sliders are staggered between adjacent bases.

10. The supporting device for installing a cantilever beam in construction according to claim 1, characterized in that: The bracket has a U-shaped structure and includes a base plate and an elastically retractable guard plate. The base plate is fixed on the top of the telescopic rod, and the guard plate is slidably inserted in the side wall of the base plate to adapt to cantilever beam bottom molds of different widths.

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