Arc-shaped parapet wall corner steel formwork

Abstract

The utility model provides an arc-shaped parapet wall corner steel formwork which comprises an inner plate and an outer plate, the inner plate and the outer plate are arc-shaped plates which extend left and right and are provided with front openings, the positions of the inner plate and the outer plate correspond front and back, and the radian of the inner plate is the same as that of the outer plate. A plurality of main ridges extending up and down and a plurality of secondary ridges extending left and right are fixedly connected to the opposite surfaces of the inner plate and the outer plate, the main ridges are arranged left and right at intervals, the secondary ridges are arranged up and down at intervals, and the positions of the secondary ridges on the inner plate correspond to those of the secondary ridges on the outer plate front and back; split bolt holes are formed in the secondary ridges on the inner plate and the outer plate, the split bolt holes in the inner plate correspond to the split bolt holes in the outer plate one to one in position in a front-back mode, and split bolts are arranged between the split bolt holes, corresponding in position in the front-back mode, in the same set; according to the arc-shaped parapet wall corner steel formwork, the arc-shaped steel formwork can be connected with other formworks through tensioning, so that gaps between the formworks are reduced while connection is conducted, and the phenomenon that due to the gaps, voids and pitted surfaces exist after concrete is formed is avoided.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to an arc-shaped parapet corner steel formwork. Background Art

[0002] Building construction refers to the production activities in the implementation stage of project construction, which is the construction process of various buildings. When constructing the roof of a building, it is necessary to build a low wall around the roof, that is, the so-called parapet.

[0003] During the construction process of the parapet, for aesthetic or architectural design considerations, an arc-shaped structure is used for construction at the corner of the parapet. The arc-shaped structure requires an arc-shaped corner steel formwork as the support during concrete pouring. The arc-shaped steel formwork is made of steel plates into a shaped steel arc formwork with a curvature. Then, the steel arc formwork is spliced with other formworks, and the splicing is mostly carried out through bolts. Due to installation errors during connection, there may be a certain gap between the arc-shaped corner steel formwork and other formworks, which is likely to cause honeycombing and pitting on the formed arc-shaped structure during concrete pouring. Content of the Utility Model

[0004] In order to solve the problem that installation errors in the background art easily lead to gaps between the arc-shaped corner steel formwork and other formworks, the utility model proposes an arc-shaped parapet corner steel formwork.

[0005] The technical solution of the utility model is: it includes an inner plate and an outer plate.

[0006] Both the inner plate and the outer plate are front-opening arc-shaped plates extending left and right, and the inner plate and the outer plate are corresponding front and back, and the inner plate and the outer plate have the same curvature.

[0007] A plurality of main ribs extending up and down and a plurality of secondary ribs extending left and right are fixedly connected to the opposite surfaces of the inner plate and the outer plate. The main ribs are arranged at intervals left and right, the secondary ribs are arranged at intervals up and down, and the secondary ribs on the inner plate and the secondary ribs on the outer plate are corresponding front and back.

[0008] Through holes for tie bolts are provided on the secondary ribs of both the inner plate and the outer plate, and the through holes for tie bolts on the inner plate and the through holes for tie bolts on the outer plate are corresponding one by one front and back. A tie bolt is provided between the corresponding through holes for tie bolts in the same group.

[0009] Tightening mechanisms are provided on the right sides of the opposite sides of the inner plate and the outer plate. The tightening mechanisms can be telescoped left and right. Connecting mechanisms are provided on the left sides of the opposite sides of the inner plate and the outer plate. One end of the tightening mechanism can extend into the interior of the corresponding connecting mechanism, and the end of the tightening mechanism extending into the connecting mechanism is detachably locked with the connecting mechanism. When one end of the tightening mechanism moves to the left, the tightening mechanism and the connecting mechanism can be made to approach each other.

[0010] Preferably, the tensioning mechanism includes a connecting plate fixedly connected to the right side of the opposite surfaces of two secondary flutes corresponding to each other in the front and rear positions. Support seats are fixedly connected to the opposite surfaces of two connecting plates corresponding to each other in the front and rear positions. A rotating frame extending in the up-and-down direction is rotatably provided in the support seat. The rotating frame can rotate back and forth. A threaded connection hole is formed in the rotating frame and extends in the left-right direction. A tensioning screw rod extending in the left-right direction and adapted to it is threadedly connected inside the threaded connection hole. A tensioning block is fixedly connected to the right end of the tensioning screw rod.

[0011] The connecting mechanism is provided with a U-shaped structure. The tensioning screw rod corresponding to the connecting mechanism can be turned into the inside of the U-shaped structure. The width of the tensioning block is greater than the width of the gap inside the U-shaped structure.

[0012] Preferably, the connecting mechanism includes a connecting support plate fixedly connected to the left side of the opposite surfaces of two secondary flutes corresponding to each other in the front and rear positions. The connecting support plate and the connecting plate are corresponding to each other in the left-right position. A support frame is fixedly connected to the front side surface of the connecting support plate. The support frame is a U-shaped frame extending in the front-rear direction. The opening directions of two U-shaped frames corresponding to each other in the front and rear positions are opposite to each other. A tensioning plate extending in the front-rear direction is fixedly connected inside the support frame. An avoidance groove extending in the front-rear direction is formed in the tensioning plate. The opening direction of the avoidance groove is the opening direction of the corresponding support frame. The tensioning screw rod can be turned into the inside of the avoidance groove through the rotation of the rotating frame. The diameter of the tensioning block is greater than the width of the avoidance groove.

[0013] Preferably, a turntable is fixedly connected to the left end of the tensioning screw rod.

[0014] Preferably, lifting hooks are fixedly connected to the upper surfaces of the inner plate and the outer plate. A hook insertion hole adapted to the lifting hook of the crane is formed inside the lifting hook.

[0015] Preferably, mounting plates are fixedly connected to the bottoms of the inner plate and the outer plate. The mounting plates are arc-shaped structures, and the arc degrees of the mounting plates are the same as those of the inner plate and the outer plate.

[0016] Advantages of the present utility model: The steel formworks can be tightened by turning the tensioning screw rod on the tensioning mechanism into the inside of the connecting mechanism, so as to reduce the gap between the two while connecting, and avoid the existence of gaps between the formworks due to installation errors, thereby avoiding the appearance of honeycombing and pitting on the formed concrete parapet wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 Schematic diagram of the main structure of Embodiment 1;

[0019] Figure 2 is Figure 1 schematic diagram of the tensioning mechanism structure;

[0020] Figure 3 is Figure 1 schematic diagram of the connection mechanism structure.

[0021] In the figure, 1 is the inner plate, 2 is the outer plate, 3 is the main rib, 4 is the secondary rib, 5 is the tie bolt, 6 is the hanging bracket, 7 is the tensioning mechanism, 71 is the connecting plate, 72 is the support seat, 73 is the rotating frame, 74 is the tensioning screw, 75 is the tensioning block, 76 is the turntable, 8 is the connection mechanism, 81 is the connecting support plate, 82 is the support frame, 83 is the tensioning plate, 84 is the avoidance groove. Specific implementation manner

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment 1: The purpose of this embodiment is to propose an arc-shaped parapet corner steel formwork, including an inner plate 1 and an outer plate 2,

[0024] According to Figures 1 to 3 shown, both the inner plate 1 and the outer plate 2 are front-opening arc-shaped plates extending left and right. The arc-shaped plates can be made of steel thin plates shaped according to the corresponding radian, and the inner plate 1 and the outer plate 2 are correspondingly arranged front and back, and the radian of the inner plate 1 is the same as that of the outer plate 2.

[0025] A plurality of main ribs 3 extending up and down and a plurality of secondary ribs 4 extending left and right are fixedly connected to the opposite surfaces of the inner plate 1 and the outer plate 2. The main ribs 3 are arranged at intervals left and right, and the secondary ribs 4 are arranged at intervals up and down. The secondary ribs 4 on the inner plate 1 and the secondary ribs 4 on the outer plate 2 are correspondingly arranged front and back. The shapes of the main ribs 3 and the secondary ribs 4 match the radian of the inner plate 1 and the outer plate 2.

[0026] Tie bolt holes are opened on the secondary ribs 4 of the inner plate 1 and the outer plate 2, and the tie bolt holes on the inner plate 1 and the tie bolt holes on the outer plate 2 are correspondingly arranged one by one front and back. A tie bolt 5 is provided between the correspondingly arranged tie bolt holes in the same group.

[0027] Tensioning mechanisms 7 are provided on the right sides of the mutually facing sides of the inner plate 1 and the outer plate 2. The tensioning mechanism 7 includes a connecting plate 71 which is fixedly connected to the right sides of the mutually facing surfaces of two secondary ribs 4 corresponding to each other in the front and rear positions. Support seats 72 are fixedly connected to the mutually facing surfaces of two connecting plates 71 corresponding to each other in the front and rear positions. A rotating frame 73 extending in the up and down direction is rotatably provided in the support seat 72. The rotating frame 73 can rotate back and forth. A threaded connection hole is formed in the rotating frame 73 and extends in the left and right directions. A tensioning screw rod 74 extending in the left and right directions and adapted thereto is threadedly connected inside the threaded connection hole. A tensioning block 75 is fixedly connected to the right end of the tensioning screw rod 74.

[0028] Connection mechanisms 8 are provided on the left sides of the mutually facing sides of the inner plate 1 and the outer plate 2. The connection mechanism 8 includes a connecting support plate 81 which is fixedly connected to the left sides of the mutually facing surfaces of two secondary ribs 4 corresponding to each other in the front and rear positions. The connecting support plate 81 corresponds to the connecting plate 71 in the left and right positions. A support frame 82 is fixedly connected to the front side surface of the connecting support plate 81. The support frame 82 is a U-shaped frame extending in the front and rear directions. The opening directions of two U-shaped frames corresponding to each other in the front and rear positions face away from each other. A tensioning plate 83 extending in the front and rear directions is fixedly connected inside the support frame 82. An avoidance groove 84 extending in the front and rear directions is formed in the tensioning plate 83. The opening direction of the avoidance groove 84 is the opening direction of the corresponding support frame 82. The tensioning screw rod 74 can be turned into the inside of the avoidance groove 84 through the rotation of the rotating frame 73. The diameter of the tensioning block 75 is larger than the width of the avoidance groove 84.

[0029] Lifting brackets 6 are fixedly connected to the upper surfaces of the inner plate 1 and the outer plate 2. A hook insertion hole adapted to the hook of a crane is formed inside the lifting bracket 6.

[0030] Mounting plates are fixedly connected to the bottoms of the inner plate 1 and the outer plate 2. The mounting plates are of an arc structure, and the arc of the mounting plates is the same as that of the inner plate 1 and the outer plate 2.

[0031] The ordinary steel formwork is made of steel sheets of the same specification as the inner plate 1 and the outer plate 2, and is the same as this arc-shaped parapet corner steel formwork except that it does not have an arc.

[0032] Construction principle: Construction workers first lift the inner plate 1 and the outer plate 2 to the designated position by a crane, and then insert a tensioning screw rod 74 between the tensioning bolt holes on the inner plate 1 and the corresponding tensioning bolt holes on the outer plate 2.

[0033] After all the tensioning screw rods 74 are installed, the mounting plates are connected to the ground by bolts.

[0034] Then, the construction workers use a crane to hoist the ordinary steel formwork to the designated position. Then, the tensioning screws 74 on the inner plate 1 and the outer plate 2 are flipped through the rotating frame 73, so that the tensioning screws 74 are flipped into the inside of the avoidance grooves 84 on the adjacent ordinary steel formwork. Then, the construction workers rotate the turntable 76. The rotation of the turntable 76 drives the rotation of the tensioning screw 74. The tensioning screw 74 rotates and moves to the left at the same time, so that the outer surface of the tensioning block 75 contacts and approaches the outer surface of the tensioning plate 83, so that the adjacent ordinary steel formwork approaches the inner plate 1 and the outer plate 2 until the outer surface of the ordinary steel formwork contacts and presses against the inner plate 1 and the outer plate 2, and the turntable 76 cannot rotate, so that the ordinary steel formwork is tightly attached to the inner plate 1 and the outer plate 2.

[0035] The tensioning screws 74 on the ordinary steel formwork are flipped into the inside of the avoidance grooves 84 on the inner plate 1 and the outer plate 2 in the above manner, and then the ordinary steel formwork is made to approach and tightly attach to the inner plate 1 and the outer plate 2 in the same way.

[0036] Thus, the arc-shaped steel formwork and the ordinary formwork can be tightened while being connected, and the gap between the steel formworks can be avoided, so as to prevent honeycombing and pitting on the formed parapet wall due to the gap between the formworks after the concrete is formed.

[0037] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claims.

Claims

1. A curved parapet angle steel formwork, characterized in that: comprising an inner plate (1) and an outer plate (2), The inner plate (1) and the outer plate (2) are both front-opening arc-shaped plates extending left and right, and the inner plate (1) and the outer plate (2) are located in front and back corresponding positions, and the inner plate (1) and the outer plate (2) have the same curvature; A plurality of main flutes (3) extending vertically and a plurality of secondary flutes (4) extending horizontally are fixedly connected on the opposite surfaces of the inner plate (1) and the outer plate (2); the main flutes (3) are arranged at intervals horizontally, and the secondary flutes (4) are arranged at intervals vertically; and the secondary flutes (4) on the inner plate (1) and the secondary flutes (4) on the outer plate (2) correspond in front and back positions; The secondary ribs (4) on the inner plate (1) and the outer plate (2) are both provided with tension bolt holes, and the tension bolt holes on the inner plate (1) correspond to the tension bolt holes on the outer plate (2) in a front-to-back manner, and tension bolts (5) are provided between the tension bolt holes in the same group of positions that correspond to each other in a front-to-back manner; A tensioning mechanism (7) is provided on the right side of the opposite side of the inner plate (1) and the outer plate (2), and the tensioning mechanism (7) can be extended to the left and right. A connecting mechanism (8) is provided on the left side of the opposite side of the inner plate (1) and the outer plate (2), and one end of the tensioning mechanism (7) can be extended into the interior of the corresponding connecting mechanism (8), and the end of the tensioning mechanism (7) extending into the connecting mechanism (8) is locked and detachably connected to the connecting mechanism (8), and when one end of the tensioning mechanism (7) moves to the left, the tensioning mechanism (7) and the connecting mechanism (8) can be brought close to each other.

2. The curved parapet angle steel formwork according to claim 1 is characterized in that: The tensioning mechanism (7) comprises a connecting plate (71), wherein the connecting plate (71) is fixedly connected to the right side of the opposite faces of the secondary ribs (4) at two positions corresponding to each other, and a support seat (72) is fixedly connected to the opposite faces of the two connecting plates (71) at the front and rear positions, and a rotating frame (73) extending in the up-down direction is rotatably arranged inside the supporting seat (72), and the rotating frame (73) can rotate forward and backward, and a threaded connection hole is provided inside the rotating frame (73), and the threaded connection hole extends leftward and rightward, and a tensioning screw (74) extending leftward and rightward and matching with the threaded connection hole is threadedly connected inside the threaded connection hole, and a tensioning block (75) is fixedly connected to the right end of the tensioning screw (74); A U-shaped structure is provided inside the connection mechanism (8), a tightening screw (74) corresponding to the connection mechanism (8) can be turned into the interior of the U-shaped structure, and the width of the tightening block (75) is greater than the width of the gap inside the U-shaped structure.

3. The curved parapet angle steel formwork according to claim 2 is characterized in that: The connecting mechanism (8) comprises a connecting support plate (81) fixedly connected to the left side of the oppositely separated surface of the secondary ribs (4) at two corresponding front and rear positions, the connecting support plate (81) and the connecting plate (71) are located in left and right correspondence, a support frame (82) is fixedly connected to the front side surface of the connecting support plate (81), the support frame (82) is a U-shaped frame extending in the front and rear direction, the opening directions of the two U-shaped frames at the front and rear positions are opposite to each other, a tensioning plate (83) extending front and rear is fixedly connected inside the support frame (82), the tensioning plate (83) is provided with an avoidance groove (84) extending front and rear, the opening direction of the avoidance groove (84) is the opening direction of the corresponding support frame (82), the tensioning screw (74) can be turned into the avoidance groove (84) by the rotation of the rotating frame (73), and the diameter of the tensioning block (75) is larger than the width of the avoidance groove (84).

4. The curved parapet angle steel formwork according to claim 2 is characterized in that: The left end of the tightening screw rod (74) is fixedly connected to a rotating disk (76).

5. The curved parapet angle steel formwork according to claim 1 is characterized in that: The upper surfaces of the inner plate (1) and the outer plate (2) are both fixedly connected with a lifting frame (6), and a hook insertion hole adapted to a crane hook is provided inside the lifting frame (6).

6. The curved parapet angle steel formwork according to claim 1 is characterized in that: The bottoms of the inner plate (1) and the outer plate (2) are both fixedly connected with mounting plates, the mounting plates are arc-shaped structures, and the arc of the mounting plates is the same as that of the inner plate (1) and the outer plate (2).

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