A formwork for rigid concrete structure construction

Abstract

The present invention belongs to the technical field of building construction, and specifically relates to a formwork for rigid concrete structure construction, comprising a rigid steel frame column vertically placed on the upper surface of a foundation and a plurality of formwork systems, each formwork system comprising two first formworks arranged opposite to each other and two second formworks arranged opposite to each other, a first fastener for connecting two adjacent second formworks is provided on the surface of each first formwork, the first fastener comprises two first movable blocks and a first driving member for driving the two first movable blocks to move, two slots for plugging the first movable blocks are provided on the surface of each second formwork, a first fixed block matched with the first movable block is provided in the slot, and the problem of cumbersome connection between adjacent metal formworks during the assembly process of metal formworks currently built around steel columns is effectively solved.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a template for rigid concrete structure construction. Background Art

[0002] Reinforced concrete structure is a main form of steel-concrete composite structure. It is a special structure formed by adding steel sections inside reinforced concrete. It has the advantages of high bearing capacity, high rigidity, good fire resistance and good earthquake resistance. It is widely used in high-rise buildings or large buildings. In the construction process of reinforced concrete columns, wooden formwork or metal formwork is usually used around the steel sections to pour concrete between the formwork and the steel sections. However, wooden formwork has the disadvantages of poor durability, low turnover rate, regular maintenance and waterproof coating, and the surface of the concrete after forming may not be smooth enough and needs to be coated with concrete twice. Metal formwork can solve most of the problems of wooden formwork, can be repeatedly used many times, and has high strength. However, metal formwork is heavy, and lifting equipment is required for installation and disassembly during construction. In addition, when adjacent metal formworks are disassembled and assembled, auxiliary connection buckles or a large number of bolts and nuts are required for consolidation, which is cumbersome, time-consuming and labor-intensive.

[0003] For example, a Chinese patent discloses a steel-concrete formwork reinforcement structure and construction method (patent announcement number: CN108005381B). The connection between the steel column and the surrounding steel column formwork requires the use of segmented screws, connecting plates, support members, tension screws and other components. The operation is cumbersome and complicated, which greatly increases the burden on construction workers and prolongs the construction period. If the construction workers are not skilled, it may also cause problems such as loose connections between adjacent steel column formworks. In serious cases, it may also lead to problems with subsequent column formation and substandard construction quality.

[0004] Therefore, it is necessary to provide a fast and efficient metal template connection structure that can effectively solve the problem of complicated connection between metal templates. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a formwork for rigid concrete structure construction, which is used to solve the problem of complicated connection between adjacent metal formworks during the construction of metal formworks currently built around steel columns.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A template for rigid concrete structure construction, comprising a rigid steel column vertically placed on the upper surface of a foundation and a plurality of template systems spaced around the rigid steel column, each of the template systems comprising two first templates arranged oppositely and two second templates arranged oppositely, the two first templates and the two second templates together forming a vertical rectangular structure, a plurality of the template systems being stacked in a vertical direction and arranged concentrically with the rigid steel column; a first fastener for connecting two adjacent second templates is provided on the surface of each first template, wherein the first fastener comprises two first movable members that move oppositely in a horizontal plane A movable block and a first driving member for driving the two first movable blocks to move, the two first movable blocks are horizontally slidably arranged on the surface of the first template, and under the drive of the first driving member, the two ends of the two first movable blocks that are far away from each other are respectively matched with the corresponding second templates inserted, and the surface of each of the second templates is provided with two slots for the first movable blocks to be inserted; each of the slots is provided with a first fixed block that matches the first movable block, and when the second template is placed at a right angle to the first template, the first movable block extends into the slot under the drive of the first driving member, and the first movable block and the first fixed block cooperate with each other and are tightly connected.

[0008] Furthermore, each of the first movable blocks is connected to a vertical limit block on one end surface close to the second template, and a limit slot is provided on the surface of the limit block which is interlocked with the first fixed block. The vertical length of the slot is greater than the vertical length of the first movable block, and the horizontal width of the slot is the same as the horizontal width of the first movable block.

[0009] Furthermore, the surface of each of the first templates is provided with a second fastener for connecting to the template system stacked above it, and the second fastener includes a second movable block slidably arranged on its surface in a vertical plane and a second driving member for driving the second movable block, and the upper end of the second movable block is vertically penetrated through the surface of the first template under the drive of the second driving member, and the lower end side surface of each of the first templates is provided with a second fixed block that is mutually engaged with the second movable block, and when the two first templates are placed up and down and aligned, the second movable block is mutually engaged with the second fixed block in the upper first template under the drive of the second driving member, and the two are fastened together.

[0010] Furthermore, a rotating block is hingedly connected to the surface of the second movable block close to the upper template system, and the rotating block is rotatably connected to the first template. A through hole matching the rotating block is opened on the lower end side surface of each of the first templates, and the second fixed block is arranged in the through hole. When the second movable block moves downward and drives the rotating block to rotate, one end of the rotating block away from the second movable block extends into the through hole and is engaged with the second fixed block.

[0011] Further, the first driving member includes a first gear rotatably set on the surface of the first template and two first racks meshing with each other, the two first racks are respectively fixedly connected to the corresponding first movable blocks, the surface of the first template is detachably connected with a first clamping block mutually engaged with the first gear, and the first gear is meshed with a first driving wheel that is also rotatably connected to the surface of the first template; the second driving member includes a second gear rotatably set on the surface of the first template and a second rack meshing with the first rack, the first rack is fixedly connected to the second movable block, the surface of the first template is detachably connected with a second clamping block mutually engaged with the second gear, and the second gear is meshed with a second driving wheel that is also rotatably connected to the surface of the first template.

[0012] Furthermore, a tension screw assembly is detachably connected between two upper and lower adjacent pieces of the second template.

[0013] The beneficial effects of the present invention are:

[0014] 1. The present invention arranges first fasteners and second fasteners on the surface of the first template respectively for connecting adjacent first templates and second templates, wherein the first fastener can fix and fasten the two first templates and the two adjacent second templates to form a rectangular template system, and the second fastener can fasten the upper and lower adjacent first templates, thereby reducing the cumbersome operations such as positioning, disassembly and assembly of connecting buckles during installation of traditional metal templates, greatly improving the installation efficiency of the template system, simplifying and facilitating the operation, and greatly reducing the burden on construction personnel.

[0015] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0017] Figure 1 It is a schematic diagram of the installation of the template system and the rigid steel column of the present invention;

[0018] Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure of the first gear and the second gear;

[0020] Figure 4This is a front view of the installation of the template system and the rigid steel column of the present invention;

[0021] Figure 5 This is a schematic diagram of the connection between the first template and the second template of the present invention;

[0022] Figure 6 for Figure 5 The enlarged schematic diagram of point B in the middle;

[0023] Figure 7 This is a schematic diagram of the second template structure of the present invention.

[0024] The following are marked in the accompanying drawings:

[0025] 1 rigid steel column, 2 first formwork, 3 second formwork, 4 first movable block, 5 slot, 6 first fixed block, 7 embedded screw, 8 tension screw assembly, 9 limit block, 10 second movable block, 11 second fixed block, 12 rotating block, 13 first gear, 14 first rack, 15 first clamping block, 16 first driving wheel, 17 second gear, 18 second rack, 19 second clamping block, 20 second driving wheel, 21 foundation. DETAILED DESCRIPTION

[0026] like Figure 1 to Figure 7 As shown,

[0027] A formwork for rigid concrete structure construction, comprising a rigid steel column 1 vertically arranged on the upper surface of a foundation 21 and a plurality of formwork systems spaced around the rigid steel column 1, each of the formwork systems comprising two first formworks 2 arranged oppositely and two second formworks 3 arranged oppositely, the two first formworks 2 and the two second formworks 3 together forming a vertical rectangular structure, the plurality of formwork systems being stacked in a vertical direction and arranged concentrically with the rigid steel column 1; the surface of each first formwork 2 is provided with a first fastener for connecting two adjacent second formworks 3, wherein the first fastener comprises two first movable blocks 4 making opposite movements in a horizontal plane and a first driving member for driving the two first movable blocks 4 to move, the two first movable blocks 4 being both horizontally slidably arranged on the surface of the first formwork 2, and driven by the first driving member, the two ends of the two first movable blocks 4 which are far away from each other are respectively inserted into the corresponding second formworks 3 In it, the surface of each of the second templates 3 is provided with two slots 5 for the first movable block 4 to be inserted; a first fixed block 6 matching with the first movable block 4 is welded and fixed in each of the slots 5, and when the second template 3 is placed at a right angle to the first template 2 and at the same height, the two first movable blocks 4 are respectively extended into the slots 5 driven by the first driving member, and then the first driving member drives the two first movable blocks 4 to make the opposite movement to the previous one again, until the first movable block 4 abuts against the corresponding first fixed block 6, at which time, the first movable block 4 and the first fixed block 6 cooperate with each other and are fastened; a tension screw assembly 8 is detachably connected between the upper and lower adjacent second templates 3, a vertical embedded screw 7 is fixed inside the foundation, and through holes for the embedded screw 7 to pass through are provided on the surfaces of the first template 2 and the second template 3, and the first template 2 and the second template 3 of the bottom layer are fixedly installed on the foundation surface by the embedded screw 7 and bolts;

[0028] Among them, the side surfaces of the first formwork 2 and the second formwork 3 away from the rigid steel column 1 are both provided with grooves, and multiple transverse and vertical reinforcing back ribs are welded in the grooves, which can reduce the weight of the first formwork 2 and the second formwork 3 while maintaining their rigid strength, and effectively prevent deformation under the extrusion of concrete.

[0029] As shown in the figure, when a rectangular formwork system needs to be built around the rigid steel column 1, the two first formworks 2 are first vertically lifted to the embedded screws 7 installed on the foundation surface. The two first formworks 2 are arranged opposite to each other at intervals, and the embedded screws 7 pass through the surface of the first formwork 2. Then, the two first formworks 2 are fixedly connected to the embedded screws 7 through nuts. Then, the two second formworks 3 are respectively lifted to the two sides of the first formwork 2 that have been fixed, and the two second formworks 3 are arranged opposite to each other. During the lifting process, the first driving member is controlled to drive the two first movable blocks 4 to extend into the slots 5. When the upper and lower ends of the first formwork 2 and the second formwork 3 are flush, the first driving member is then controlled again to drive the two first movable blocks 4 to move in the opposite direction as before (the two first movable blocks 4 move closer to each other) until the two first movable blocks 4 are respectively matched with the corresponding first fixed blocks 6 and fastened. Next, the two first templates 2 are fastened to the second templates 3 by the cooperation of the first driving member, the first movable block 4 and the first fixed block 6, and form a rectangular template system. Finally, the two second templates 3 are fixed to the foundation surface by the cooperation of the embedded screw 7 and the nut to complete the fixation of the bottom template system. Then, the connection steps of the first template 2 and the second template 3 are repeated, and the template system continues to be stacked on the bottom template system. The two adjacent second templates 3 can be fastened to each other by the cooperation of the tension screw assembly 8, which effectively reduces the operation steps and burden of the construction personnel when building the template. The cooperation of the first movable block 4 and the slot 5 can also provide a positioning effect when the first template 2 and the second template 3 are connected, and the fastening connection between one first template 2 and two first templates 2 is realized through the first driving member. The operation is convenient and quick, which effectively improves the construction efficiency.

[0030] In this embodiment, a vertical limit block 9 is welded and fixed to the surface of one end of each of the first movable blocks 4 close to the second template 3, and a limit groove is opened on the surface of the limit block 9 which is interlocked with the first fixed block 6. The vertical length of the groove 5 is greater than the vertical length of the first movable block 4, and the horizontal width of the groove 5 is the same as the horizontal width of the first movable block 4. The first fixed block 6 is cylindrical, and the two ends of the first fixed block 6 are welded and fixed to the second template 3. The limit groove is semicircular and cooperates with the cylindrical first fixed block 6.

[0031] Combination Figure 5 (For ease of presentation, Figure 5 The slot 5 and the first fixing block 6 are indicated by dotted lines) and Figure 7As shown, when the second template 3 cooperates with the first template 2, the second template 3 is lifted and at a right angle to the first template 2, the limit block 9 is first extended into the slot 5 and the second template 3 is horizontally limited, which effectively improves the efficiency during assembly, and then the second template 3 is moved vertically downward until the upper and lower end surfaces are flush, at this time, the first driving member is controlled to drive the two first movable blocks 4 to tighten the second movable block 10, and the first movable block 4 drives the second template 3 to be close to the first template 2 through the cooperation of the limit groove and the first fixed block 6, so that the first template 2 and the second template 3 are tightly connected, which effectively improves the tightness of the connection.

[0032] In this embodiment, the surface of each first template 2 is provided with a second fastener for connecting the template system stacked thereon, and the second fastener includes a second movable block 10 slidably arranged on the surface thereof in a vertical plane and a second driving member for driving the second movable block 10, and the second movable block 10 is slidably arranged in an inclined direction in the vertical plane (combined with Figure 5 As shown), the upper end of the second movable block 10 is vertically penetrated into the surface of the first template 2 under the drive of the second driving member, and the lower end side surface of each of the first templates 2 is provided with a through hole matching the second movable block 10, and a second fixed block 11 is provided in the through hole and is mutually engaged with the second movable block 10. The second fixed block 11 is cylindrical and is welded and fixed to the first template 2, and when the two first templates 2 are placed up and down and vertically aligned, the second movable block 10 is mutually engaged with the second fixed block 11 in the upper first template 2 under the drive of the second driving member, and then the second driving member is controlled to drive the second movable block 10 to move in the opposite direction again, so that the second movable block 10 tightens the second fixed block 11, and the upper and lower first templates 2 are tightly connected.

[0033] When you need to continue to build the formwork system in the vertical direction, first align the upper and lower formwork systems and place them in the right position. Figure 1 As shown, at this time, the second driving member is adjusted and the second movable block 10 is controlled to move downward. Since the second movable block 10 tilts in the vertical plane, after sliding downward for a distance, its end will move a distance in the horizontal plane, which will cause the second movable block 10 to be mutually engaged with the second fixed block 11, and tighten the upper and lower first templates 2, so that the upper and lower template systems are tightly connected, reducing the operation steps of tightening the nuts between the upper and lower template systems (of course, the second templates 3 in the upper and lower template systems can continue to be tightened using the tension screw assembly 8, which can enhance the strength of the upper and lower template systems and prevent leakage), effectively improving the assembly efficiency. When disassembling the template system, it is only necessary to control the second driving member to drive the second movable block 10 to move upward. After the second movable block 10 is no longer engaged with the second fixed block 11, the two template systems can be quickly removed, greatly improving the disassembly and assembly speed.

[0034] In this embodiment, the second movable block 10 is hinged to two rotating blocks 12 on the surface close to the upper template system. The two rotating blocks 12 are symmetrically arranged about the vertical center line of the first template 2. The surfaces of the rotating blocks 12 are provided with long strip-shaped through grooves. The second movable block 10 is hinged to the rotating blocks 12 by a connecting rod slidably arranged in the through grooves (combined with Figure 6 As shown), the rotating block 12 is rotatably connected to the first template 2, and a limiting groove that is mutually engaged with the second fixed block 11 is opened at one end of the rotating block 12 away from the second movable block 10, and a through hole that matches the rotating block 12 is opened on the lower end side surface of each of the first templates 2, and the second fixed block 11 is welded and fixed in the through hole, and the second fixed block 11 is cylindrical (the limiting groove on the rotating block 12 is also semicircular). When the second movable block 10 moves downward and drives the two rotating blocks 12 to rotate at the same time, the end of the rotating block 12 away from the second movable block 10 extends into the through hole and is mutually engaged with the second fixed block 11.

[0035] Combination Figure 5 and Figure 6 As shown, when the upper and lower first templates 2 overlap and align, the second movable block 10 is driven downward by the second driving member, and the end of the rotating block 12 away from the second movable block 10 rotates upward, so that the rotating block 12 is convenient to insert into the through hole on the upper first template 2. When the upper and lower first templates are abutted, the second movable block 10 drives the rotating block 12 to move in the opposite direction again until the limit groove on the rotating block 12 and the second fixed block 11 are engaged with each other. At this time, the upper and lower first templates 2 are fastened and connected under the action of the rotating block 12 and the second fixed block 11, wherein the distance between the rotation center of the rotating block 12 and the second movable block 10 is greater than the distance between the rotation center and the second fixed block 11. The rotating block 12 and the second movable block 10 form a force-saving lever, which can effectively improve the connection tightness of the second fastener. While the operation is simple and quick, it also ensures the stability of the connection. The two rotating blocks 12 are arranged to cooperate with the second fixed block 11, which can improve the force uniformity and connection tightness when the upper and lower first templates 2 are connected.

[0036] In this embodiment, the first driving member includes a first gear 13 rotatably arranged on the surface of the first template 2 and two first racks 14 meshing with each other, the two first racks 14 are respectively welded and fixed to the corresponding surfaces of the first movable block 4, the surface of the first template 2 is detachably connected with a first clamping block 15 mutually engaged with the first gear 13, the surface of the first gear 13 is provided with circumferentially evenly spaced clamping grooves, the first clamping block 15 is penetrated by the second gear 17 and is detachably connected with the clamping groove of the first gear 13, the first gear 13 is meshed with a first driving wheel 16 also rotatably connected to the surface of the first template 2, and the surface of the first driving wheel 16 is provided with a rectangular connection port; The second driving member includes a second gear 17 rotatably arranged on the surface of the first template 2 and a second rack 18 meshing with the second gear. The second rack 18 is welded and fixed to the second movable block 10. The surface of the first template 2 is detachably connected with a second clamping block 19 which is mutually clamped with the second gear 17. The length of the second clamping block 19 is less than the length of the first clamping block 15. The surface of the second gear 17 is also provided with circumferentially evenly spaced clamping grooves. The first clamping block 15 and the second clamping block 19 are both penetrated by the first template 2 and detachably connected to the clamping grooves. The second gear 17 is meshed with a second driving wheel 20 which is also rotatably connected to the surface of the first template 2. The surface of the second driving wheel 20 is provided with a connecting port.

[0037] Combination Figure 2 and Figure 3 As shown, the first gear 13 and the second gear 17 are coaxially arranged, and the first gear 13 drives the two first movable blocks 4 to move away from or towards each other through two racks arranged up and down, and the second gear 17 also drives the second movable block 10 to move through the second rack 18, and the connecting ports on the surfaces of the first driving wheel 16 and the second driving wheel 20 can be connected to the electric drill for power (connecting the power output end of the electric drill or other driving equipment outside through the connecting port is already a prior art, but it is not repeated), the output end of the electric drill cooperates with the connecting port through the corresponding linkage, and drives the first driving wheel 16 and the second driving wheel 20 to rotate, and the two driving wheels respectively drive the corresponding gears to rotate The first movable block 4 and the second movable block 10 are moved, which reduces the steps of manually adjusting the movable blocks, is simple and convenient to operate, saves manpower, and effectively improves the construction efficiency; when the first movable block 4 or the second movable block 10 is fastened to the corresponding first template 2 or the second template 3, the first clamping block 15 and the second clamping block 19 can be respectively inserted into the corresponding clamping grooves, which can fix the first gear 13 and the second gear 17, prevent the first movable block 4 and the second movable block 10 from moving, and maintain the fastening connection between adjacent template systems; when the first clamping block 15 fixes the first gear 13, it needs to pass through the clamping groove on the second gear 17 before it can be clamped with the first gear 13.

[0038] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A template for rigid concrete structure construction, comprising a rigid steel column (1) vertically placed on the upper surface of a foundation (21) and a plurality of template systems spaced around the rigid steel column (1), characterized in that: Each of the template systems comprises two first templates (2) arranged opposite to each other and two second templates (3) arranged opposite to each other, the two first templates (2) and the two second templates (3) together form a vertical rectangular structure, and a plurality of the template systems are stacked in the vertical direction and arranged concentrically with the rigid steel column (1); a first fastener for connecting two adjacent second templates (3) is provided on the surface of each first template (2), wherein the first fastener comprises two first movable blocks (4) performing opposite movements in a horizontal plane and a first driving member for driving the two first movable blocks (4) to move, and the two first movable blocks (4) are both horizontally movable. The first movable blocks (4) are arranged on the surface of the first template (2) in a flat sliding manner, and driven by the first driving member, the two ends of the two first movable blocks (4) that are away from each other are respectively matched with the second templates (3) corresponding to the insertion, and the surface of each second template (3) is provided with two slots (5) for the first movable blocks (4) to be inserted; each of the slots (5) is provided with a first fixed block (6) that matches with the first movable block (4), and when the second template (3) is placed at a right angle to the first template (2), the first movable block (4) is extended into the slot (5) driven by the first driving member, and the first movable block (4) and the first fixed block (6) are matched with each other and are tightly connected; A vertical limit block (9) is connected to the surface of one end of each first movable block (4) close to the second template (3); a limit slot is provided on the surface of the limit block (9) for interlocking with the first fixed block (6); the vertical length of the slot (5) is greater than the vertical length of the first movable block (4), and the horizontal width of the slot (5) is the same as the horizontal width of the first movable block (4); The surface of each of the first templates (2) is provided with a second fastener for connecting to the template system stacked above it, the second fastener comprises a second movable block (10) slidably arranged on its surface in a vertical plane and a second driving member for driving the second movable block (10), the upper end of the second movable block (10) is vertically penetrated through the surface of the first template (2) under the drive of the second driving member, the lower end side surface of each of the first templates (2) is provided with a second fixed block (11) mutually engaged with the second movable block (10), and when the two first templates (2) are placed up and down and aligned, the second movable block (10) is mutually engaged with the second fixed block (11) in the upper first template (2) under the drive of the second driving member, and the two are fastened together; A rotating block (12) is hingedly connected to the surface of the second movable block (10) close to the upper template system, and the rotating block (12) is rotatably connected to the first template (2). A through hole matching the rotating block (12) is opened on the lower end side surface of each of the first templates (2), and the second fixed block (11) is arranged in the through hole. When the second movable block (10) moves downward and drives the rotating block (12) to rotate, the end of the rotating block (12) away from the second movable block (10) extends into the through hole and is mutually engaged with the second fixed block (11).

2. A rigid concrete structure construction formwork according to claim 1, characterized in that: The first driving member comprises a first gear (13) rotatably arranged on the surface of the first template (2) and two first racks (14) meshing with the first racks (14), the two first racks (14) being fixedly connected to the corresponding first movable blocks (4) respectively, a first clamping block (15) being detachably connected to the surface of the first template (2) and being mutually engaged with the first gear (13), the first gear (13) being meshed with a first driving wheel (16) being similarly rotatably connected to the surface of the first template (2); the second driving member comprises a second gear (17) rotatably arranged on the surface of the first template (2) and a second rack (18) meshing with the first rack, the first rack (14) being fixedly connected to the second movable block (10), a second clamping block (19) being detachably connected to the surface of the first template (2) and being mutually engaged with the second gear (17), the second gear (17) being meshed with a second driving wheel (20) being similarly rotatably connected to the surface of the first template (2).

3. A rigid concrete structure construction formwork according to claim 2, characterized in that: A tension screw assembly (8) is detachably connected between two upper and lower adjacent pieces of the second template (3).

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