Pouring formwork supporting device for bare concrete construction and construction method

Abstract

The invention relates to a pouring template supporting device for bare concrete construction, which comprises a template main body mechanism, and the template main body mechanism comprises an outer template, an inner template, a vertical rod, a cross rod, an embedded screw rod and a screw cap; a pouring cavity is defined by the multiple sets of outer formworks and the multiple sets of inner formworks, the multiple sets of vertical rods and the multiple sets of transverse rods are fixedly arranged on the outer sides of each set of outer formworks and the outer sides of each set of inner formworks and are evenly distributed in a staggered mode, and the multiple sets of embedded screws are evenly and fixedly arranged between the outer formworks and the inner formworks. Nuts are fixedly arranged on the outer sides, close to the outer template, of the inner template; the flatness of the spliced upper connecting rod and the spliced lower connecting rod can be effectively improved, and the problem that due to uneven stress caused by protrusions at joints, local unevenness of a pouring formwork is caused, and consequently local recession of the wall surface after pouring is frequently caused is solved; the perpendicularity correction mode of the pouring formwork is optimized, the labor intensity is reduced, the correction precision is improved, and installation accidents caused by bottom slippage due to inclination of the inclined strut mechanism are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of concrete construction, in particular to a casting formwork support device for clear water concrete construction and a construction method. Background Art

[0002] Fair-faced concrete is concrete without surface finishes. Compared with other concretes, it has the following advantages: High compressive strength: Since fair-faced concrete has no surface treatment, all properties must be reflected in the concrete body, so the compressive strength is better than that of ordinary concrete. Good anti-penetration performance: Fair-faced concrete has no surface finishes and has undergone special anti-penetration treatment, so its anti-penetration performance is far better than that of ordinary concrete. Good fireproof performance: The cement in fair-faced concrete is reduced, resulting in a lower density of concrete, which has good fireproof performance. Environmental protection: The energy required to produce fair-faced concrete is relatively small, and dust removal is not required, so it has good environmental performance.

[0003] Fair-faced concrete is suitable for scenes that do not require surface finishing, such as buildings, bridges, underground tunnels, etc. The following are specific application scenarios: The ground of parking lots, underground garages, etc. Bridges, tunnels, energy stations, etc. Places that require super durability. Used in basements, pools, fish tanks, etc. Places that require anti-seepage. Used in industrial buildings, factories, etc. Places that require fire resistance.

[0004] In short, plain concrete is a type of concrete with a wide range of applications, and has many advantages and application scenarios. When choosing building materials, you should make a reasonable choice based on the specific conditions of use.

[0005] ‌Casting support mechanism plays a vital role in the concrete pouring process. ‌Provide a stable formwork‌: Casting support mechanism provides a stable formwork for concrete, ensuring that the concrete maintains the desired shape and size during the curing process. ‌Disperse concrete pressure‌: Casting support mechanism can disperse the pressure during concrete pouring, avoiding cracks and deformation of concrete during the pouring process. ‌Support concrete weight‌: Casting support mechanism can support the weight of concrete, avoiding collapse and deformation of concrete during the curing process.

[0006] ‌Different types of casting support mechanisms and their characteristics‌: ‌Traditional wooden formwork support‌: It is composed of wooden formwork and wooden brackets. It is simple, easy to process and build, but the wood is easily affected by moisture, deformed and aged, and has a short service life. ‌Steel formwork support‌: It is composed of steel formwork and steel brackets. It has a stable structure and long service life, but the cost is high and requires professional design and manufacturing. ‌Polymer formwork support‌: It is composed of polymer formwork and brackets. It has the advantages of light weight, easy processing, waterproof and anti-corrosion, and long service life, but the cost is high.

[0007] Choose the appropriate formwork material according to the characteristics of the building structure and the construction conditions. Traditional wooden formwork supports are suitable for simple building structures and general construction conditions, steel formwork supports are suitable for large building structures and special construction conditions, and polymer formwork supports are suitable for high-demand building structures and complex construction conditions. The stability of the structure and the way the load is transferred need to be considered during the design to ensure that the support mechanism can withstand various loads during the construction process.

[0008] For example, the application number 202220707665.6 relates to a plain concrete formwork mounting bracket, comprising two mounting units of the same structure, one side of the two mounting units is hinged, each of the mounting units is set at an angle, and any of the mounting units comprises a support member, and the support member is transversely arranged at one end of the mounting unit away from the hinge. The plain concrete formwork mounting bracket provided in this technical solution is composed of two mounting units set at an angle, and the mounting units are provided with a support member, and the plain concrete formwork can be placed on the support member, which is convenient for adjusting the installation angle and position of the plain concrete formwork, which is beneficial to the assembly of the plain concrete formwork and the pouring of the plain concrete, improving the construction quality effect of the plain concrete, and improving the labor efficiency of the workers in the construction.

[0009] However, most of the current casting formwork support devices are inconvenient to assemble and disassemble, the labor cost is high, the flatness of the upper and lower connecting rods is not high, and the uneven force caused by the bulges at the joints leads to local unevenness of the casting formwork, which frequently causes local depression of the wall after casting; the verticality correction of the casting formwork is cumbersome, the labor intensity is high, and the correction accuracy is poor. Installation accidents caused by the bottom slipping due to the tilt of the diagonal support mechanism frequently occur. In particular, when pouring, the bottom slips and moves backwards due to the force, resulting in a sudden decrease in the supporting force, which causes the casting formwork to deform. Summary of the invention

[0010] The technical problem to be solved by the present invention is to facilitate assembly and disassembly, reduce labor costs, improve the flatness of the spliced ​​upper and lower connecting rods, and reduce the problem of local unevenness of the casting template caused by uneven force caused by the bulges at the joints, thereby frequently causing local depression of the wall after casting; optimize the verticality correction method of the casting template, reduce labor intensity, improve correction accuracy, and reduce installation accidents caused by bottom slippage due to the inclination of the diagonal support mechanism, especially when pouring, the bottom slips and moves backward due to the force, resulting in a sudden reduction in supporting force, causing deformation of the casting template.

[0011] In order to solve the above technical problems, the present invention provides a casting formwork support device for clear water concrete construction, comprising a formwork main body mechanism, wherein the formwork main body mechanism comprises an outer formwork, an inner formwork, a vertical pole, a horizontal pole, an embedded screw and a nut; a plurality of groups of the outer formworks and a plurality of groups of the inner formworks surround a casting cavity, a plurality of groups of the vertical poles and a plurality of groups of the horizontal poles are fixedly arranged on the outer side of each group of the outer formworks and the inner formworks, and the groups are staggered and evenly distributed, a plurality of groups of the embedded screws are evenly fixedly arranged between the outer formworks and the inner formworks, and a nut is fixedly arranged near the outer side of the outer formworks and the inner formworks; A portable support beam mechanism for fixing the template is fixedly arranged on the template main body mechanism; An end connection mechanism connected to a portable support beam mechanism is fixedly arranged on the template main body mechanism.

[0012] Preferably, the vertical pole and the horizontal pole are constructed by splicing multiple groups of the portable support beam mechanism and the end connection mechanism, and the portable support beam mechanism includes a C-shaped channel steel, a fixed connection plate, a U-shaped long groove, a central circular hole, and a buckle groove; the portable support beam mechanism is composed of two C-shaped channel steels arranged in parallel and facing each other, and fixed evenly at intervals by multiple groups of the fixed connection plates, and multiple groups of U-shaped long grooves are evenly opened on the sides of the two C-shaped channel steels, and a central circular hole is opened at the center of each group of the U-shaped long grooves, and a buckle groove is formed between the two C-shaped channel steels and the multiple groups of the fixed connection plates; Preferably, the end connection mechanism comprises a square groove, a baffle, an insert, and an opening and closing surface; a square groove is provided in the center of the end connection mechanism, a group of inserts are fixedly provided on each of the two symmetrical sides of the square groove, a baffle is fixedly provided in the middle of the square groove, and an opening and closing surface is provided on a side surface of the end connection mechanism adjacent to the side surface with the insert; Preferably, the casting formwork support device for clear water concrete construction also includes an adjustable diagonal bracing mechanism, which includes a top corner seat, a first-level telescopic rod, a through-rod groove, a top rod fixing plate, a top rod block, a second-level telescopic rod, a support rod limiting plate, an intermediate support rod, a placement groove, a limiting rod groove, a rack embedded groove, and a portable disassembly base; one end of the first-level telescopic rod is hinged to the top corner seat, the first-level telescopic rod and the second-level telescopic rod are both inserted into the intermediate support rod, a through-rod groove is opened in the center of the first-level telescopic rod, and the through-rod groove is fixed inside A mandrel fixing plate is provided, the mandrel block is fixedly provided on the mandrel fixing plate, a support rod limiting plate is fixedly provided inside the secondary telescopic rod, one end of the intermediate support rod is fixedly connected to the support rod limiting plate, a placement groove is provided on one side of the intermediate support rod, a limiting rod groove is provided on the top axially extending inwardly, and a rack embedded groove is provided on an outer side; one end of the secondary telescopic rod is hinged to the portable disassembly base, the top corner seat is fixedly provided on the template main body mechanism, and the portable disassembly base is fixedly provided on the ground; Preferably, the portable disassembly base comprises a bottom corner seat and a conical ejector pin; the conical ejector pins are provided in multiple groups and are evenly fixedly arranged on the bottom corner seat, and one end of the secondary telescopic rod is hinged to the bottom corner seat; Preferably, the portable disassembly base further includes a lower pressing plate and an adjusting bolt; the lower pressing plate passes through a plurality of groups of the conical ejector pins and is movably arranged on the lower side of the bottom corner seat; the adjusting bolts are arranged in a plurality of groups, and the ends thereof are fixedly connected to the lower pressing plate and movably connected to the bottom corner seat through threads; Preferably, the casting formwork support device for plain concrete construction also includes an electrically controlled telescopic mechanism, which includes a chassis, a cover, a motor, an input pinion, a first-stage gear shaft, a first-stage large toothed disc, a first-stage small toothed disc, a middle support rod, a middle support plate, a second-stage gear shaft, a second-stage large toothed disc, a second-stage small toothed disc, a top support plate, a third-stage large toothed disc, a third-stage small toothed disc, an output large gear, a screw shaft, a limit stop shoulder, a threaded sleeve rod, a through hole, a threaded slot hole, a limit boss, and a cover top cover; the cover is fixedly arranged on the chassis, and the motor is fixedly arranged in the cover. The input pinion is fixedly arranged on the output shaft end of the motor, the first-stage gear shaft is movably arranged on the fixed end face of the motor through a bearing, the first-stage large toothed disc and the first-stage small toothed disc are fixedly arranged on the first-stage gear shaft, the input pinion is meshed with the first-stage large toothed disc for transmission, the middle support rod is fixedly arranged on the fixed end face of the motor, the middle support plate is fixedly arranged on the middle support rod, the upper side of the motor, the second-stage gear shaft is movably arranged on the middle support plate through a bearing, the second-stage large toothed disc and the second-stage small toothed disc are fixedly arranged on the second-stage gear On the wheel axle, the first-stage small toothed disc meshes with the second-stage large toothed disc for transmission, the top support plate is fixedly arranged on the top of the middle support rod, the third-stage large toothed disc and the third-stage small toothed disc are fixedly connected and movably arranged on the middle support rod through bearings, the second-stage small toothed disc meshes with the third-stage large toothed disc for transmission, the screw shaft is movably arranged on the top support plate through bearings, the output large gear is fixedly arranged on the end of the screw shaft, and meshes with the third-stage small toothed disc for transmission; a limited stop shoulder is fixedly arranged on the outer circumferential surface of the screw shaft close to the output large gear, the The threaded sleeve is movably sleeved on the screw shaft, a through hole is provided on the side of the threaded sleeve away from the screw shaft, a threaded slot is provided near one end of the screw shaft and is threadedly connected to the screw shaft, a limited boss is provided at the middle position of the outer circumferential surface of the threaded sleeve, a top cover is fixedly provided at one end of the cover shell away from the chassis, and the threaded sleeve passes through the top cover; the electric control telescopic mechanism is fixedly provided in the placement groove on the intermediate support rod and extends along the limit rod groove; the threaded sleeve is fixedly connected to the top rod block on the primary telescopic rod at one end away from the screw shaft; Preferably, the casting formwork support device for plain concrete construction further includes a magnetically controlled locking mechanism, which includes a rack, a magnetic telescopic switch, and a trapezoidal telescopic head; the rack is fixedly arranged in the rack embedded groove, the magnetic telescopic switch is fixedly arranged on the side of the primary telescopic rod, the trapezoidal telescopic head is fixedly arranged at the output end of the magnetic telescopic switch, and the other side is arranged just above the rack; Preferably, the casting formwork support device for clear-faced concrete construction also includes a wedge-shaped support mechanism, which includes a bottom plate, a lower wedge plate, an upper wedge plate, a middle trapezoidal plate, a limiting slot, a stretching screw, a limiting shaft, a shaft retaining ring, and a top plate; the lower wedge plate is fixedly arranged on the upper side of the bottom plate, the middle trapezoidal plate and the upper wedge plate are movably arranged on the upper side of the lower wedge plate in sequence, the top plate is fixedly arranged on the upper side of the upper wedge plate, the limiting slots are symmetrically provided at the middle positions of the lower wedge plate and the upper wedge plate, the stretching screw is movably arranged on the side of the middle trapezoidal plate through the shaft retaining ring, the limiting shaft is movably arranged in the limiting slots on the lower wedge plate and the upper wedge plate, and is threadedly connected with the stretching screw; A construction method of a casting formwork support device for clear water concrete construction comprises the following steps: S1. When the two portable support beam mechanisms need to be staggered and fixed, a screw with an anti-slip cap is passed through the central circular hole, sleeved in the U-shaped long groove located at the lower side, and fixed with an anti-slip nut; S2, the ends of the two groups of portable support beam mechanisms to be connected in series are respectively inserted into the square grooves of the end connection mechanism, contacting the baffle, and a group of embedded blocks are fixedly provided on each symmetrical side and inserted into the buckling groove on the portable support beam mechanism, and the opening and closing surface and the outer side surfaces of the two groups of portable support beam mechanisms connected simultaneously contact the outer surfaces of the outer template and the inner template; S3, the intermediate support rod is fixedly arranged on the top rod fixing plate in the through rod groove of the primary telescopic rod, and the secondary telescopic rod moves linearly on the intermediate support rod along the intermediate support rod; S4. When the adjustable diagonal bracing mechanism needs to be fixed, the bottom corner seat is knocked to insert the conical ejector pin into the ground to limit its degree of freedom; S5. When disassembling the portable disassembly base, use an electric wrench to rotate the adjusting bolt, and the lower pressing plate moves downward along the axis direction of the adjusting bolt, thereby pushing the conical ejector away from the ground; S6, the motor rotates, thereby driving the screw shaft to decelerate and rotate through the meshing transmission of the input pinion with the primary large toothed disc, the meshing transmission of the primary small toothed disc with the secondary large toothed disc, the meshing transmission of the secondary small toothed disc with the tertiary large toothed disc, and the meshing transmission of the output large gear with the tertiary small toothed disc, and the threaded sleeve is threadedly connected with the screw shaft, thereby driving the threaded sleeve to move linearly along the axial direction of the screw shaft; thereby driving the primary telescopic rod to move linearly along the axis of the intermediate support rod, away from or close to the secondary telescopic rod; S7, when the motor rotates and drives the primary telescopic rod away from the secondary telescopic rod, the magnetic telescopic switch is turned on, and the trapezoidal telescopic head is contracted upward by the magnetic force and away from the rack, so that the primary telescopic rod moves normally. When it moves to the specified position, the motor stops, the magnetic telescopic switch is disconnected, and the trapezoidal telescopic head moves toward the rack under its own elastic force and embeds into the tooth gap, limiting the movement of the primary telescopic rod relative to the secondary telescopic rod. The motor is powered off to automatically eliminate internal stress; S8, the stretching screw rotates, driving the lower wedge plate, the upper wedge plate and the middle trapezoidal plate to move toward each other through the limiting shaft, thereby changing the distance between the bottom plate and the top plate; Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a portable support beam mechanism, C-shaped channel steel and multiple sets of fixed connecting plates are welded to form a rigid back rib reinforcement machine structure. The rod is light and the structural force is strong. While meeting the mechanical performance requirements, the labor intensity of assembly is reduced. The bolts pass through the center circle hole and are fixed in the U-shaped long groove, which is easy to operate and has an adjustable position. It improves the adaptability requirements of different distances in different environments. At the same time, it replaces the combination of steel pipe structure and steel bars, which is easy to assemble and disassemble, and has low labor costs.

[0013] 2. By setting up the end connection mechanism, the embedded block is directly inserted into the buckle groove, which not only plays a role in limiting, but also greatly improves the shear force at the joint. The single-sided design of the opening and closing surface improves the convenience of loading and unloading, while ensuring the flatness of the upper and lower connecting rods of the splicing, and ensuring the uniform force of the supporting connecting rods. It solves the problem of uneven force caused by the bulge at the joint, which leads to local unevenness of the casting template and local depression of the wall after casting.

[0014] 3. By setting up an adjustable diagonal brace mechanism, while supporting the casting template, it effectively improves the verticality correction of the casting template, improves the efficiency of assembly and disassembly, reduces the difficulty of adjustment, and reduces the labor intensity of assembly while improving the assembly accuracy.

[0015] 4. The portable disassembly base is set to effectively solve the installation accident caused by the bottom slipping due to the tilt of the diagonal bracing mechanism, especially when pouring, the bottom slips and moves backward due to the force, resulting in a sudden decrease in the supporting force and causing the casting template to deform. In addition, through the design of the lower pressure plate and the adjustment bolt, when disassembling the adjustable diagonal bracing mechanism, the portable disassembly base can be loosened by simply rotating the screws with an electric tool, thereby disassembling the adjustable diagonal bracing mechanism, reducing the difficulty of disassembly.

[0016] 5. By setting up an electrically controlled telescopic mechanism and adjusting the distance between the primary telescopic rod and the secondary telescopic rod through three-stage gear shifting, the verticality of the casting template can be adjusted. This not only improves the accuracy requirement of verticality adjustment, but also simplifies the adjustment steps and labor intensity, and has strong structural integration and functionality.

[0017] 6. By setting up a magnetically controlled locking mechanism, the risk of fatigue damage to the equipment caused by long-term stress on the electric telescopic mechanism is effectively avoided, and the service life of the equipment is improved. At the same time, during the disassembly process of the adjustable diagonal brace mechanism, the disassembly difficulty is reduced and the labor intensity is reduced.

[0018] 7. By setting up a wedge-shaped support mechanism, the phenomenon of uneven heights between vertical poles due to uneven ground, which affects the assembly effect and assembly accuracy, is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings: Figure 1 It is the front view of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 for Figure 2 A partial enlarged schematic diagram of the middle A area; Figure 4 for Figure 3 A partial enlarged schematic diagram of the middle B area; Figure 5 A top view of the portable support beam mechanism of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the end connection mechanism of the present invention; Figure 7 It is a left side view of the adjustable diagonal bracing mechanism of the present invention; Figure 8 for Figure 7 Structural schematic diagram of the cross section in the CC direction; Fig. 9 for Figure 8 A partial enlarged schematic diagram of the middle D area; Fig.10 for Fig. 9 A partial enlarged schematic diagram of the middle E area; Fig.11 for Figure 8 A partial enlarged schematic diagram of the middle F area; Fig.12 for Figure 2 A partial enlarged schematic diagram of the middle G area; Fig.13 This is a front view of the electric-controlled telescopic mechanism of the present invention; Fig.14 for Fig.13 Schematic diagram of the structure of the cross section in the HH direction; Fig.15 for Fig.14 A partial enlarged schematic diagram of the middle J region; Fig.16 A top view of the wedge-shaped support mechanism of the present invention; Fig.17 for Fig.16 Schematic diagram of the structure of the cross section in the KK direction; In the figure: 1. Formwork body mechanism; 101. External formwork; 102. Internal formwork; 103. Vertical pole; 104. Crossbar; 105. Embedded screw; 106. Nut; 2. Portable support beam mechanism; 201. C-shaped channel steel; 202. Fixed connecting plate; 203. U-shaped long groove; 204. Center circular hole; 205. Snap-fit ​​groove; 3. End connection mechanism; 301. Square groove; 302. Baffle; 303. Embedded block; 304. Opening and closing surface; 4. Adjustable diagonal bracing mechanism; 40 1. Top corner seat; 402. First-level telescopic rod; 403. Through-rod groove; 404. Top rod fixing plate; 405. Top rod block; 406. Second-level telescopic rod; 407. Support rod limit plate; 408. Middle support rod; 409. Placement groove; 410. Limit rod groove; 411. Rack embedded groove; 412. Portable disassembly base; 413. Bottom corner seat; 414. Conical ejector pin; 415. Lower pressure plate; 416. Adjustment bolt; 5. Electric telescopic mechanism; 501. Bottom 502, cover; 503, motor; 504, input pinion; 505, primary gear shaft; 506, primary large toothed disc; 507, primary small toothed disc; 508, middle support rod; 509, middle support plate; 510, secondary gear shaft; 511, secondary large toothed disc; 512, secondary small toothed disc; 513, top support plate; 514, third large toothed disc; 515, third small toothed disc; 516, output large gear; 517, screw shaft; 518, limit stop shoulder; 5 19. Threaded sleeve; 520. Through hole; 521. Threaded slot hole; 522. Position-limiting boss; 523. Housing top cover; 6. Magnetic locking mechanism; 601. Rack; 602. Magnetic telescopic switch; 603. Trapezoidal telescopic head; 7. Wedge-shaped support mechanism; 701. Bottom plate; 702. Lower wedge-shaped plate; 703. Upper wedge-shaped plate; 704. Middle trapezoidal plate; 705. Position-limiting slot hole; 706. Stretching screw; 707. Position-limiting shaft; 708. Shaft retaining ring; 709. Top plate; DETAILED DESCRIPTION

[0020] Embodiment 1: The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 17A casting formwork support device for clear concrete construction, comprising a formwork main body mechanism 1, wherein the formwork main body mechanism 1 comprises an outer formwork 101, an inner formwork 102, a vertical pole 103, a horizontal pole 104, an embedded screw 105, and a nut 106; a plurality of groups of the outer formwork 101 and a plurality of groups of the inner formwork 102 enclose a casting cavity, a plurality of groups of the vertical poles 103 and a plurality of groups of the horizontal poles 104 are fixedly arranged on the outer side of each group of the outer formwork 101 and the inner formwork 102, and the groups are staggered and evenly distributed, a plurality of groups of the embedded screw 105 are evenly fixedly arranged between the outer formwork 101 and the inner formwork 102, and a nut 106 is fixedly arranged near the outer side of the outer formwork 101 and the inner formwork 102; The template main body mechanism 1 is fixedly provided with a portable support beam mechanism 2 for fixing the template; The template main body mechanism 1 is fixedly provided with an end connection mechanism 3 connected to the portable support beam mechanism 2 .

[0022] In some embodiments, see Figure 4 , Figure 5 The vertical pole 103 and the horizontal pole 104 are constructed by splicing multiple groups of the portable support beam mechanism 2 and the end connection mechanism 3. The portable support beam mechanism 2 includes a C-shaped channel steel 201, a fixed connection plate 202, a U-shaped long groove 203, a center circular hole 204, and a buckle groove 205; the portable support beam mechanism 2 is arranged in parallel with two C-shaped channel steels 201, and is evenly fixed by multiple groups of the fixed connection plates 202. Multiple groups of U-shaped long grooves 203 are evenly opened on the sides of the two C-shaped channel steels 201, and a center circular hole 204 is opened at the center of each group of the U-shaped long grooves 203. A buckle groove 205 is formed between the two C-shaped channel steels 201 and the multiple groups of the fixed connection plates 202. Slot 205; when in use, when it is necessary to stagger the two portable support beam mechanisms 2, pass the screws with anti-slip caps through the central circular hole 204, sleeve them in the U-shaped long groove 203 located on the lower side, and fix them with anti-slip nuts; by setting up the portable support beam mechanism, the C-shaped channel steel and multiple groups of fixed connecting plates are welded to form a rigid back rib reinforcement machine structure. The rod is light and the structural strength is strong. While meeting the mechanical performance requirements, the labor intensity of assembly is reduced. The bolts pass through the central circular hole and are fixed in the U-shaped long groove, which is easy to operate and has adjustable position, which improves the adaptability requirements of building different distances in different environments. At the same time, it replaces the combination of steel pipe structure and steel bars, which is easy to assemble and disassemble, and has low labor costs.

[0023] In some embodiments, see Figure 6The end connection mechanism 3 includes a square groove 301, a baffle 302, an insert 303, and an opening and closing surface 304; a square groove 301 is provided in the center of the end connection mechanism 3, and a group of inserts 303 are fixedly provided on the two symmetrical sides of the square groove, a baffle 302 is fixedly provided in the middle position of the square groove 301, and an opening and closing surface 304 is provided on a side of the end connection mechanism 3 adjacent to the side with the insert 303; when in use, the ends of the two groups of the portable support beam mechanisms 2 that need to be connected in series are respectively inserted into the square groove 301 of the end connection mechanism 3, contacting the baffle 302, and a group of inserts 303 are fixedly provided on the symmetrical sides to be inserted into the In the snap-fit ​​groove 205 on the portable support beam mechanism 2, the opening and closing surface 304 and the outer side surfaces of the two connected groups of portable support beam mechanisms 2 simultaneously contact the outer surfaces of the outer template 101 and the inner template 102; by setting the end connection mechanism, the embedding block is directly inserted into the snap-fit ​​groove, which not only plays a limiting role, but also greatly improves the shear force at the joint. The single-sided design of the opening and closing surface not only improves the convenience of loading and unloading, but also ensures the flatness of the upper and lower connecting rods of the splicing, and ensures the uniformity of the force of the support connecting rod, which effectively solves the problem of uneven force caused by the bulge at the joint, resulting in local unevenness of the casting template and local depression of the wall after casting.

[0024] In some embodiments, see Figure 7-11The casting formwork support device for clear water concrete construction also includes an adjustable diagonal bracing mechanism 4, which includes a top corner seat 401, a first-level telescopic rod 402, a through rod groove 403, a top rod fixing plate 404, a top rod block 405, a second-level telescopic rod 406, a support rod limit plate 407, an intermediate support rod 408, a placement groove 409, a limit rod groove 410, a rack embedded groove 411, and a portable disassembly base 412; one end of the first-level telescopic rod 402 is connected to the top The corner seat 401 is hinged, the primary telescopic rod 402 and the secondary telescopic rod 406 are both inserted into the intermediate support rod 408, a through rod groove 403 is provided at the center of the primary telescopic rod 402, a top rod fixing plate 404 is fixedly arranged inside the through rod groove 403, the top rod block 405 is fixedly arranged on the top rod fixing plate 404, a support rod limiting plate 407 is fixedly arranged inside the secondary telescopic rod 406, and one end of the intermediate support rod 408 is fixed to the support rod limiting plate 407 is fixedly connected, a side surface of the intermediate support rod 408 is provided with a placement groove 409, a top portion is provided with a limit rod groove 410 extending axially inwardly, and an outer side surface is provided with a rack embedded groove 411; one end of the secondary telescopic rod 406 is hinged with the portable disassembly base 412, the top corner seat 401 is fixedly set on the template main body mechanism 1, and the portable disassembly base 412 is fixedly set on the ground; when in use, the intermediate support rod 408 is fixedly set on the top rod fixing plate 404 in the through rod groove 403 of the primary telescopic rod 402, and the secondary telescopic rod 406 moves linearly along the intermediate support rod 408 on the intermediate support rod 408; by setting an adjustable diagonal bracing mechanism, while playing a supporting role for the casting template, the verticality correction of the casting template is effectively improved, and at the same time, the efficiency of assembly and disassembly is improved, the adjustment difficulty is reduced, and the assembly accuracy is improved while the assembly labor intensity is reduced.

[0025] In some embodiments, see Fig.12 The portable disassembly base 412 includes a bottom corner seat 413 and a conical ejector pin 414; the conical ejector pin 414 is provided in multiple groups and is evenly fixed on the bottom corner seat 413, and one end of the secondary telescopic rod 406 is hinged to the bottom corner seat 413; when in use, when it is necessary to fix the adjustable diagonal support mechanism 4, the bottom corner seat 413 is knocked to make the conical ejector pin 414 inserted into the ground to limit its degree of freedom; In some embodiments, see Fig.12The portable disassembly base 412 also includes a lower pressing plate 415 and an adjusting bolt 416; the lower pressing plate 415 passes through multiple groups of the conical ejector pins 414 and is movably arranged on the lower side of the bottom corner seat 413; the adjusting bolt 416 is provided with multiple groups, and its end is fixedly connected to the lower pressing plate 415 and is threadedly movably connected to the bottom corner seat 413; when in use, when the portable disassembly base 412 is disassembled, the adjusting bolt 416 is rotated by an electric wrench, and the lower pressing plate 415 moves downward along the axis direction of the adjusting bolt 416, thereby pushing the conical ejector pin 414 away from the ground; by setting up a portable disassembly base, the installation accident caused by the bottom slipping due to the tilt of the diagonal bracing mechanism is effectively solved, especially when pouring, the bottom slipping backward due to the force causes the support force to suddenly decrease and cause the casting template to deform. In addition, through the design of the lower pressing plate and the adjusting bolt, when disassembling the adjustable diagonal bracing mechanism, the portable disassembly base can be loosened by simply rotating the screws with an electric tool, thereby disassembling the adjustable diagonal bracing mechanism, reducing the difficulty of disassembly.

[0026] In some embodiments, see Figure 13-15The casting formwork support device for clear water concrete construction also includes an electrically controlled telescopic mechanism 5, which includes a chassis 501, a cover 502, a motor 503, an input pinion 504, a first-level gear shaft 505, a first-level large toothed disc 506, a first-level small toothed disc 507, a middle support rod 508, a middle support plate 509, a second-level gear shaft 510, a second-level large toothed disc 511, a second-level small toothed disc 512, a top support plate 513, a third-level large toothed disc 514, a third-level small toothed disc 515, an output large gear 516, a screw shaft 517, a limit shoulder 518, a threaded sleeve 519, a through hole 520, a threaded slot hole 521, a limit boss 522, and a cover top cover 523; the cover 502 is fixedly arranged on the bottom The motor 503 is fixedly arranged in the housing 502, the input pinion 504 is fixedly arranged on the output shaft end of the motor 503, the first-stage gear shaft 505 is movably arranged on the fixed end face of the motor 503 through a bearing, the first-stage large toothed disc 506 and the first-stage small toothed disc 507 are fixedly arranged on the first-stage gear shaft 505, the input pinion 504 is meshed with the first-stage large toothed disc 506 for transmission, the middle support rod 508 is fixedly arranged on the fixed end face of the motor 503, the middle support plate 509 is fixedly arranged on the middle support rod 508, the upper side of the motor 503, the second-stage gear shaft 510 is movably arranged on the middle support plate 509 through a bearing The secondary large toothed disc 511 and the secondary small toothed disc 512 are fixedly arranged on the secondary gear shaft 510, the primary small toothed disc 507 is meshed with the secondary large toothed disc 511 for transmission, the top support plate 513 is fixedly arranged on the top of the middle support rod 508, the tertiary large toothed disc 514 and the tertiary small toothed disc 515 are fixedly connected and movably arranged on the middle support rod 508 through bearings, the secondary small toothed disc 512 is meshed with the tertiary large toothed disc 514 for transmission, the screw shaft 517 is movably arranged on the top support plate 513 through bearings, the output large gear 516 is fixedly arranged at the end of the screw shaft 517, and is meshed with the tertiary small toothed disc 515 for transmission; the screw shaft 517 is supported by the upper support plate 513, and the output large gear 516 is fixedly arranged on the end of the screw shaft 517, and is meshed with the tertiary small toothed disc 515 for transmission; A limit stop shoulder 518 is fixedly arranged on the outer circumferential surface of one side of the output large gear 516, the threaded sleeve 519 is movably sleeved on the screw shaft 517, a through hole 520 is provided on the side of the threaded sleeve 519 away from the screw shaft 517, a threaded slot hole 521 is provided near one end of the screw shaft 517 to be threadedly connected with the screw shaft 517, a limit boss 522 is provided in the middle position of the outer circumferential surface of the threaded sleeve 519, a top cover 523 is fixedly arranged on one end of the cover 502 away from the chassis 501, and the threaded sleeve 519 passes through the top cover 523; the electric control telescopic mechanism 5 is fixedly arranged in the placement groove 409 on the intermediate support rod 408, and extends along the limit rod groove 410;The threaded sleeve 519 is fixedly connected to the push rod block 405 on the first-level telescopic rod 402 at one end away from the screw shaft 517; when in use, the motor 503 rotates, thereby meshing and transmitting the input pinion 504 with the first-level large toothed disc 506, the first-level small toothed disc 507 with the second-level large toothed disc 511, the second-level small toothed disc 512 with the third-level large toothed disc 514, and the output large gear 516 with the third-level small toothed disc 515, thereby driving the screw shaft 517 to rotate at a reduced speed, and the screw The threaded sleeve rod 519 is threadedly connected to the screw shaft 517, thereby driving the threaded sleeve rod 519 to move linearly along the axial direction of the screw shaft 517; thereby driving the primary telescopic rod 402 to move linearly along the axis of the intermediate support rod 408, away from or close to the secondary telescopic rod 406; by setting an electric control telescopic mechanism, the distance between the primary telescopic rod and the secondary telescopic rod is adjusted through three-stage gear speed change, thereby adjusting the verticality of the casting template, which not only improves the accuracy requirement of verticality adjustment, but also simplifies the adjustment steps and labor intensity, and has strong structural integration and functionality. ;

[0027] In some embodiments, see Fig.10 The casting formwork support device for plain concrete construction also includes a magnetically controlled locking mechanism 6, which includes a rack 601, a magnetic telescopic switch 602, and a trapezoidal telescopic head 603; the rack 601 is fixedly arranged in the rack embedded groove 411, the magnetic telescopic switch 602 is fixedly arranged on the side of the primary telescopic rod 402, the trapezoidal telescopic head 603 is fixedly arranged at the output end of the magnetic telescopic switch 602, and the other side is arranged just above the rack 601; when in use, when the motor 503 rotates and drives the primary telescopic rod 402 away from the secondary telescopic rod 406, the magnetic telescopic switch 602 is opened, and the trapezoidal telescopic head 603 is magnetically clamped. The action of the motor 503 is to retract upward and away from the rack 601, so that the primary telescopic rod 402 can move normally. When it moves to the specified position, the motor 503 stops, the magnetic telescopic switch 602 is disconnected, and the trapezoidal telescopic head 603 moves toward the rack 601 under its own elastic force and embeds into the tooth gap, thereby limiting the movement of the primary telescopic rod 402 relative to the secondary telescopic rod 406. The motor 503 is powered off and the internal stress is automatically eliminated. By setting up a magnetically controlled locking mechanism, the risk of fatigue damage of the equipment caused by long-term stress on the electric-controlled telescopic mechanism is effectively avoided, thereby increasing the service life of the equipment. At the same time, during the disassembly of the adjustable diagonal brace mechanism, the disassembly difficulty is reduced and the labor intensity is reduced.

[0028] In some embodiments, see Figure 16-17The casting formwork support device for clear water concrete construction also includes a wedge-shaped support mechanism 7, which includes a bottom plate 701, a lower wedge plate 702, an upper wedge plate 703, a middle trapezoidal plate 704, a limiting slot 705, a stretching screw 706, a limiting shaft 707, a shaft retaining ring 708, and a top plate 709; the lower wedge plate 702 is fixedly arranged on the upper side of the bottom plate 701, and the middle trapezoidal plate 704 and the upper wedge plate 703 are movably arranged on the upper side of the lower wedge plate 702 in sequence, and the top plate 709 is fixedly arranged on the upper side of the upper wedge plate 703, and the limiting slots 705 are symmetrically provided in the middle positions of the lower wedge plate 702 and the upper wedge plate 703. The stretching screw 706 is movably arranged on the side of the middle trapezoidal plate 704 through the shaft retaining ring 708, and the limiting shaft 707 is movably arranged in the limiting slot hole 705 on the lower wedge plate 702 and the upper wedge plate 703, and is threadedly connected with the stretching screw 706; when in use, the stretching screw 706 rotates, and drives the lower wedge plate 702, the upper wedge plate 703 and the middle trapezoidal plate 704 to move toward each other through the limiting shaft 707, thereby changing the distance between the bottom plate 701 and the top plate 709; by setting up the wedge-shaped support mechanism, the phenomenon that the heights of the vertical poles are different due to the uneven ground, affecting the assembly effect and assembly accuracy is effectively improved.

[0029] A construction method of a casting formwork support device for clear water concrete construction comprises the following steps: S1. When the two portable support beam mechanisms 2 need to be staggered and fixed, a screw with an anti-slip cap is passed through the central circular hole 204, sleeved into the U-shaped long groove 203 located at the lower side, and fixed with an anti-slip nut; S2, the ends of the two groups of portable support beam mechanisms 2 that need to be connected in series are respectively inserted into the square grooves 301 of the end connection mechanism 3, contacting the baffle 302, and a group of embedded blocks 303 are fixedly provided on each symmetrical side and inserted into the buckling grooves 205 on the portable support beam mechanism 2, and the opening and closing surface 304 and the outer side surfaces of the two groups of portable support beam mechanisms 2 connected are simultaneously in contact with the outer surfaces of the outer template 101 and the inner template 102; S3, the intermediate support rod 408 is fixedly arranged on the top rod fixing plate 404 in the through rod groove 403 of the primary telescopic rod 402, and the secondary telescopic rod 406 moves linearly on the intermediate support rod 408 along the intermediate support rod 408; S4. When the adjustable diagonal bracing mechanism 4 needs to be fixed, the bottom corner seat 413 is knocked to insert the conical ejector pin 414 into the ground to limit its degree of freedom; S5. When the portable disassembly base 412 is disassembled, the adjusting bolt 416 is rotated by using an electric wrench, and the lower pressing plate 415 moves downward along the axis direction of the adjusting bolt 416, thereby pushing the conical ejector pin 414 away from the ground; S6, the motor 503 rotates, thereby the input pinion 504 meshes with the primary large toothed disc 506 for transmission, the primary small toothed disc 507 meshes with the secondary large toothed disc 511 for transmission, the secondary small toothed disc 512 meshes with the tertiary large toothed disc 514 for transmission, and the output large gear 516 meshes with the tertiary small toothed disc 515 for transmission, thereby driving the screw shaft 517 to rotate at a reduced speed, and the threaded sleeve 519 is threadedly connected to the screw shaft 517, thereby driving the threaded sleeve 519 to move linearly along the axial direction of the screw shaft 517; thereby driving the primary telescopic rod 402 to move linearly along the axis of the intermediate support rod 408, away from or close to the secondary telescopic rod 406; S7, when the motor 503 rotates and drives the primary telescopic rod 402 away from the secondary telescopic rod 406, the magnetic telescopic switch 602 is turned on, and the trapezoidal telescopic head 603 is contracted upward by the magnetic force and away from the rack 601, so that the primary telescopic rod 402 moves normally. When it moves to the specified position, the motor 503 stops, the magnetic telescopic switch 602 is disconnected, and the trapezoidal telescopic head 603 moves toward the rack 601 by its own elastic force and embeds into the tooth gap, thereby limiting the movement of the primary telescopic rod 402 relative to the secondary telescopic rod 406. The motor 503 is powered off to automatically eliminate the internal stress; S8, the stretching screw 706 rotates, driving the lower wedge plate 702, the upper wedge plate 703 and the middle trapezoidal plate 704 to move toward each other through the limiting shaft 707, thereby changing the distance between the bottom plate 701 and the top plate 709; Obviously, the above embodiments are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A casting formwork support device for clear water concrete construction, characterized in that: The invention comprises a template main body structure (1), wherein the template main body structure (1) comprises an outer template (101), an inner template (102), vertical rods (103), horizontal rods (104), embedded screw rods (105), and nuts (106); a plurality of groups of the outer templates (101) and a plurality of groups of the inner templates (102) enclose a casting cavity, a plurality of groups of the vertical rods (103) and a plurality of groups of the horizontal rods (104) are fixedly arranged on the outer side of each group of the outer templates (101) and the inner templates (102), and the groups are staggered and evenly distributed; a plurality of groups of embedded screw rods (105) are evenly fixedly arranged between the outer templates (101) and the inner templates (102), and a nut (106) is fixedly arranged near the outer side of the outer templates (101) and the inner templates (102); A portable support beam mechanism (2) for fixing the template is fixedly arranged on the template main body mechanism (1); An end connection mechanism (3) connected to a portable support beam mechanism (2) is fixedly arranged on the template main body mechanism (1).

2. A casting formwork support device for clear water concrete construction according to claim 1, characterized in that: The vertical rod (103) and the horizontal rod (104) are constructed by splicing a plurality of groups of the portable support beam mechanisms (2) and the end connection mechanisms (3); the portable support beam mechanism (2) comprises a C-shaped channel steel (201), a fixed connection plate (202), a U-shaped long groove (203), a central circular hole (204), and a buckling groove (205); the portable support beam mechanism (2) comprises two C-shaped channel steels (201) arranged in parallel and facing each other, and fixed at even intervals by a plurality of groups of the fixed connection plates (202); a plurality of groups of U-shaped long grooves (203) are evenly arranged on the sides of the two C-shaped channel steels (201); a central circular hole (204) is arranged at the center of each group of the U-shaped long grooves (203); and a buckling groove (205) is formed between the two C-shaped channel steels (201) and the plurality of groups of the fixed connection plates (202).

3. A casting formwork support device for clear water concrete construction according to claim 2, characterized in that: The end connection mechanism (3) comprises a square groove (301), a baffle (302), an insert (303), and an opening and closing surface (304); the end connection mechanism (3) is provided with a square groove (301) in the center, a group of inserts (303) are fixedly arranged on two symmetrical sides of the square groove, a baffle (302) is fixedly arranged in the middle of the square groove (301), and a side surface of the end connection mechanism (3) adjacent to the side surface with the insert (303) is provided with an opening and closing surface (304).

4. A casting formwork support device for clear water concrete construction according to claim 3, characterized in that: The casting formwork support device for clear water concrete construction further comprises an adjustable diagonal bracing mechanism (4), wherein the adjustable diagonal bracing mechanism (4) comprises a top corner seat (401), a primary telescopic rod (402), a through-rod groove (403), a top rod fixing plate (404), a top rod block (405), a secondary telescopic rod (406), a support rod limiting plate (407), an intermediate support rod (408), a placement groove (409), a limiting rod groove (410), a rack embedded groove (411), and a portable disassembly base (412); one end of the primary telescopic rod (402) is hinged to the top corner seat (401), the primary telescopic rod (402) and the secondary telescopic rod (406) are both inserted into the intermediate support rod (408), a through-rod groove (403) is provided at the center of the primary telescopic rod (402), and the A push rod fixing plate (404) is fixedly arranged inside the through rod groove (403), the push rod block (405) is fixedly arranged on the push rod fixing plate (404), a support rod limiting plate (407) is fixedly arranged inside the secondary telescopic rod (406), one end of the intermediate support rod (408) is fixedly connected to the support rod limiting plate (407), a placement groove (409) is provided on one side of the intermediate support rod (408), a limiting rod groove (410) is provided on the top extending inwardly along the axial direction, and a rack embedded groove (411) is provided on one outer side; one end of the secondary telescopic rod (406) is hinged to the portable disassembly base (412), the top corner seat (401) is fixedly arranged on the template main body mechanism (1), and the portable disassembly base (412) is fixedly arranged on the ground.

5. A casting formwork support device for clear water concrete construction according to claim 4, characterized in that: The portable disassembly base (412) comprises a bottom corner seat (413) and a conical ejector pin (414); a plurality of groups of the conical ejector pins (414) are arranged and evenly fixedly arranged on the bottom corner seat (413); one end of the secondary telescopic rod (406) is hinged to the bottom corner seat (413).

6. A casting formwork support device for clear water concrete construction according to claim 5, characterized in that: The portable disassembly base (412) further comprises a lower pressure plate (415) and an adjusting bolt (416); the lower pressure plate (415) passes through a plurality of groups of the conical ejector pins (414) and is movably arranged on the lower side of the bottom corner seat (413); a plurality of groups of the adjusting bolts (416) are arranged, and ends of the adjusting bolts (416) are fixedly connected to the lower pressure plate (415) and movably connected to the bottom corner seat (413) by threads.

7. A casting formwork support device for clear water concrete construction according to claim 6, characterized in that: The casting formwork support device for plain concrete construction further comprises an electrically controlled telescopic mechanism (5), wherein the electrically controlled telescopic mechanism (5) comprises a chassis (501), a cover (502), a motor (503), an input pinion (504), a first-stage gear shaft (505), a first-stage large toothed disc (506), a first-stage small toothed disc (507), a middle support rod (508), a middle support plate (509), a second-stage gear shaft (510), a second-stage large toothed disc (511), a second-stage small toothed disc (512), a top support plate (513), a third-stage large toothed disc (514), a third-stage small toothed disc (515), an output large gear (516), The screw shaft (517), the limit stop shoulder (518), the threaded sleeve rod (519), the through hole (520), the threaded slot hole (521), the limit boss (522), and the cover shell top cover (523); the cover shell (502) is fixedly arranged on the chassis (501), the motor (503) is fixedly arranged in the cover shell (502), the input pinion (504) is fixedly arranged on the output shaft end of the motor (503), the first-stage gear shaft (505) is movably arranged on the fixed end face of the motor (503) through a bearing, and the first-stage large toothed disc (506) and the first-stage small toothed disc (507) are fixedly arranged On the primary gear shaft (505), the input pinion (504) meshes with the primary large toothed disc (506) for transmission, the middle support rod (508) is fixedly arranged on the fixed end surface of the motor (503), the middle support plate (509) is fixedly arranged on the middle support rod (508), on the upper side of the motor (503), the secondary gear shaft (510) is movably arranged on the middle support plate (509) through a bearing, the secondary large toothed disc (511) and the secondary small toothed disc (512) are fixedly arranged on the secondary gear shaft (510), and the primary small toothed disc (507) is connected to the secondary gear shaft (510). The second-stage large toothed disc (511) is meshed for transmission, the top support plate (513) is fixedly arranged on the top of the middle support rod (508), the third-stage large toothed disc (514) and the third-stage small toothed disc (515) are fixedly connected and movably arranged on the middle support rod (508) via bearings, the second-stage small toothed disc (512) is meshed for transmission with the third-stage large toothed disc (514), the screw shaft (517) is movably arranged on the top support plate (513) via bearings, and the output large gear (516) is fixedly arranged on the end of the screw shaft (517) and meshed for transmission with the third-stage small toothed disc (515);A limit stop shoulder (518) is fixedly provided on the outer circumferential surface of the screw shaft (517) on the side close to the output gear (516); the threaded sleeve (519) is movably sleeved on the screw shaft (517); a through hole (520) is provided on the side of the threaded sleeve (519) away from the screw shaft (517); a threaded slot hole (521) is provided on one end close to the screw shaft (517) and is threadedly connected to the screw shaft (517); a limit boss is provided in the middle of the outer circumferential surface of the threaded sleeve (519). (522), a top cover (523) is fixedly arranged at one end of the cover shell (502) away from the chassis (501), and the threaded sleeve rod (519) passes through the top cover (523); the electric control telescopic mechanism (5) is fixedly arranged in the placement groove (409) on the intermediate support rod (408) and extends along the limit rod groove (410); the end of the threaded sleeve rod (519) away from the screw shaft (517) is fixedly connected to the top rod block (405) on the primary telescopic rod (402). ; 8. A casting formwork support device for clear water concrete construction according to claim 7, characterized in that: The casting formwork support device for plain concrete construction further comprises a magnetically controlled locking mechanism (6), the magnetically controlled locking mechanism (6) comprising a rack (601), a magnetic telescopic switch (602), and a trapezoidal telescopic head (603); the rack (601) is fixedly arranged in the rack embedded groove (411), the magnetic telescopic switch (602) is fixedly arranged on the side of the primary telescopic rod (402), and the trapezoidal telescopic head (603) is fixedly arranged at the output end of the magnetic telescopic switch (602), and the other side is arranged directly above the rack (601).

9. A casting formwork support device for clear water concrete construction according to claim 8, characterized in that: The casting formwork support device for plain concrete construction further comprises a wedge-shaped support mechanism (7), wherein the wedge-shaped support mechanism (7) comprises a bottom plate (701), a lower wedge-shaped plate (702), an upper wedge-shaped plate (703), a middle trapezoidal plate (704), a limiting slot (705), a stretching screw (706), a limiting shaft (707), a shaft retaining ring (708), and a top plate (709); the lower wedge-shaped plate (702) is fixedly arranged on the upper side of the bottom plate (701), and the middle trapezoidal plate (704), the upper wedge-shaped plate (703), and the top plate (709) are movably arranged on the upper side of the lower wedge-shaped plate (702) in sequence. The wedge-shaped plate (703) is provided with a top plate (709) fixedly disposed on the upper side of the upper wedge-shaped plate (703). The lower wedge-shaped plate (702) and the upper wedge-shaped plate (703) are provided with limit slots (705) symmetrically disposed in the middle position. The stretching screw (706) is movably disposed on the side of the middle trapezoidal plate (704) through the shaft retaining ring (708). The limit shaft (707) is movably disposed in the limit slots (705) on the lower wedge-shaped plate (702) and the upper wedge-shaped plate (703) and is threadedly connected to the stretching screw (706).

10. The construction method of a casting formwork support device for plain concrete construction according to claim 9, characterized in that: The steps include: S1. When it is necessary to stagger and fix the two portable support beam mechanisms (2), a screw with an anti-slip cap is passed through the central circular hole (204), sleeved in the U-shaped long groove (203) located at the lower side, and fixed by an anti-slip nut; S2, the ends of the two groups of portable support beam mechanisms (2) to be connected in series are respectively inserted into the square grooves (301) of the end connection mechanism (3) to contact the baffle (302), and a group of inserts (303) are fixedly provided on each symmetrical side and inserted into the buckling grooves (205) on the portable support beam mechanism (2), and the opening and closing surface (304) and the outer side surfaces of the two groups of portable support beam mechanisms (2) connected are simultaneously in contact with the outer surfaces of the outer template (101) and the inner template (102); S3, the intermediate support rod (408) is fixedly arranged on the top rod fixing plate (404) in the through rod groove (403) of the primary telescopic rod (402), and the secondary telescopic rod (406) moves linearly on the intermediate support rod (408) along the intermediate support rod (408); S4. When it is necessary to fix the adjustable diagonal bracing mechanism (4), the bottom corner seat (413) is knocked to allow the conical ejector pin (414) to be inserted into the ground, thereby limiting its degree of freedom; S5. When the portable disassembly base (412) is disassembled, the adjusting bolt (416) is rotated using an electric wrench, and the lower pressing plate (415) moves downward along the axis of the adjusting bolt (416), thereby pushing the conical ejector pin (414) away from the ground; S6, the motor (503) rotates, thereby meshing the input pinion (504) with the first-stage large toothed disc (506) for transmission, meshing the first-stage small toothed disc (507) with the second-stage large toothed disc (511) for transmission, meshing the second-stage small toothed disc (512) with the third-stage large toothed disc (514) for transmission, and meshing the output large gear (516) with the third-stage small toothed disc (515) for transmission, thereby driving the screw shaft (517) to rotate at a reduced speed, and the threaded sleeve (519) is threadedly connected to the screw shaft (517), thereby driving the threaded sleeve (519) to move linearly along the axial direction of the screw shaft (517); thereby driving the first-stage telescopic rod (402) to move linearly along the axis of the intermediate support rod (408), moving away from or approaching the second-stage telescopic rod (406); S7, when the motor (503) rotates and drives the primary telescopic rod (402) away from the secondary telescopic rod (406), the magnetic telescopic switch (602) is turned on, and the trapezoidal telescopic head (603) is contracted upwards by the magnetic force and away from the rack (601), so that the primary telescopic rod (402) moves normally. When the primary telescopic rod (402) moves to a specified position, the motor (503) stops rotating, the magnetic telescopic switch (602) is disconnected, and the trapezoidal telescopic head (603) moves toward the rack (601) by its own elastic force and embeds into the tooth gap, thereby limiting the movement of the primary telescopic rod (402) relative to the secondary telescopic rod (406). The motor (503) is powered off to automatically eliminate internal stress; S8. The stretching screw (706) rotates, driving the lower wedge plate (702), the upper wedge plate (703) and the middle trapezoidal plate (704) to move toward each other through the limiting shaft (707), thereby changing the distance between the bottom plate (701) and the top plate (709).

Images