A quick-installation closing net support device for post-cast strip

Abstract

The present invention discloses a quick-installing closing net supporting device for post-cast strips, belonging to the technical field of post-cast strip auxiliary equipment. The input of this supporting device provides a new fixing method for the quick-installing closing net of the post-cast strip. It is not necessary to weld vertical fixing steel bars at the post-cast strip. Only through the supporting device can the fixing of the quick-installing closing net be ensured. This supporting device is convenient to install and remove, can be quickly erected when the upper steel wire mesh is not erected, and can also be taken out from the reticulated steel bar mesh, and can be reused, improving the installation efficiency of the quick-installing closing net.

Description

Technical Field

[0001] The invention belongs to the technical field of auxiliary equipment for post-cast strips, and particularly relates to a fast and easy closing net support device for post-cast strips. Background Art

[0002] The post-cast strip is used to avoid harmful cracks caused by the solidification shrinkage or settlement of concrete during the casting of large-plane concrete. By reserving a concrete strip at the corresponding position on the plane, the flat strip is divided into multiple solidification surfaces, and finally the post-cast strip is cast to connect the multiple solidification surfaces into one body. The adoption of the post-cast strip ensures the flatness after the solidification of the large plane. When setting the post-cast strip, in order to improve the construction efficiency, a fast and easy closing net can be used as the edge baffle of the post-cast strip. The surface of the fast and easy closing net has an array of raised openings, and there are edge ribs on the upper and lower sides. The general steps for installing the post-cast strip are as follows: laying the bottom surface of the steel mesh, welding vertical support steel columns at the width position of the post-cast strip, welding or binding the fast and easy closing net to the support steel columns, and then building another layer of steel mesh surface above the fast and easy closing net. Since the fast and easy closing net is a thin iron plate, it must be supported by support steel columns. Therefore, when building the post-cast strip, a very large number of support steel columns need to be welded and fixed along both sides of the post-cast strip, and the connection between the fast and easy closing net and the support steel columns also requires operators to manually operate one by one. Therefore, the construction of the post-cast strip takes a long time, has low efficiency, and is prone to cut the operators. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a fast and easy closing net support device for post-cast strips to solve the problem of low fixing efficiency of the fast and easy closing net when fixing the fast and easy closing net during the construction of the post-cast strip.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention includes a main shaft, a barrel shaft is coaxially rotatably provided on the main shaft, a fixing member for fixing the rotation angles of the main shaft and the barrel shaft is provided on the main shaft, a retractable fork-shaped abutting frame is respectively provided on the main shaft and the barrel shaft, the rotation point of the fork-shaped abutting frame is fixed by a nut, and the two rotation free ends of the two fork-shaped abutting frames respectively abut against the upper and lower positions on the sides of two opposite fast and easy closing nets. A through hole is opened inside the main shaft, a tensioning cover is threadedly connected to the upper end of the main shaft, a steel rope is connected to the bottom of the tensioning cover, and two hooks are further included. The two hooks are respectively hooked on the middle openings on the sides of the fast and easy closing net. The steel rope passes out of the lower end of the main shaft along the through hole, passes through the two hooks respectively and then passes into the through hole from the lower end of the main shaft again, and is finally fixed on the tensioning cover.

[0006] Further, the forked support frame includes an upper support rod, a lower support rod and a connecting rod. The two connecting rods are respectively fixed on the main shaft and the coaxial side surface and extend obliquely downward. A chute is formed in the connecting rod, a threaded column is fixed at the end of the chute, a first slot is formed at the end of the lower support rod, and a second slot is formed at the end of the upper support rod. The lower support rod is slidably arranged in the chute, the threaded column respectively passes through the first slot and the second slot, and the nut is threadedly connected to the threaded column and presses against the upper support rod and the lower support rod.

[0007] Further, an L-shaped bottom plate is fixed at the end of the lower support rod, one side of the L-shaped bottom plate is perpendicular to the horizontal plane, and the other side is parallel to the horizontal plane.

[0008] Further, a horizontal lower guide groove is provided on the lower end surface of the main shaft, and two side holes are provided on the side surface of the lower end of the main shaft. The steel ropes are distributed in the side holes and the lower guide groove.

[0009] Further, a rope seat is rotatably provided at the lower part of the tensioning cover, a through hole is formed in the tensioning cover, one end of the steel rope is fixed on the rope seat, and the other end passes through the through hole and is sleeved with a stop rod.

[0010] Further, the fixing member includes a threaded outer cylinder fixed on the outer side of the upper end of the main shaft, a resisting platform fixed on the outer side of the lower end of the main shaft, and a locking cylinder threadedly connected to the threaded outer cylinder. The cylinder shaft rotates between the threaded outer cylinder and the resisting platform, and the locking cylinder is rotated to abut against the upper end of the cylinder shaft.

[0011] Further, a layer of anti-slip rubber is provided on the outer side of the locking cylinder and the outer side of the top end of the cylinder shaft.

[0012] The beneficial effects of the present invention are as follows:

[0013] The present invention provides a new fixing method for the quick-installing closing net of the post-cast strip. It is not necessary to weld vertical fixing steel bars at the post-cast strip. Only through the supporting device can the fixing of the quick-installing closing net be ensured. This supporting device is convenient to install and remove, can be quickly built when the upper steel rope net is not built, and can also be taken out from the mesh-shaped steel bar net, and can be reused, improving the installation efficiency of the quick-installing closing net.

[0014] Other advantages, objectives and features of the present invention will be described in the subsequent specification, and to some extent will be obvious to those skilled in the art, or those skilled in the art can obtain teachings from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the objectives, technical solutions and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0016] Figure 1 Schematic diagram of the installation of the support device according to an embodiment of the present invention;

[0017] Figure 2 is Figure 1 Enlarged schematic diagram at position A of;

[0018] Figure 3 Overall structure schematic diagram of the support device according to an embodiment of the present invention;

[0019] Figure 4 is Figure 3 Enlarged schematic diagram at position B of;

[0020] Figure 5 Cross-sectional view at the main shaft according to an embodiment of the present invention;

[0021] Figure 6 is Figure 5 Enlarged schematic diagram at position C of;

[0022] Figure 7 is Figure 5 Enlarged schematic diagram at position D of;

[0023] The reference signs in the drawings are as follows: 1, main shaft; 11, through hole; 12, lower guide groove; 13, side hole; 2, barrel shaft; 3, fixing member; 31, threaded outer cylinder; 32, abutting platform; 33, locking cylinder; 4, fork-shaped abutting frame; 41, nut; 42, upper support rod; 421, second groove; 43, lower support rod; 431, first groove; 44, connecting rod; 441, sliding groove; 442, threaded column; 45, L-shaped bottom plate; 5, tensioning cover; 51, rope seat; 52, retaining rod; 6, steel wire rope; 7, hook; 8, quick-installation and quick-closing net. Detailed implementation manners

[0024] As Figures 1 - 7 shown, the present invention discloses a support device for the quick-installation and quick-closing net 8 of a post-cast strip. At least two support devices are provided for each pair of opposite quick-installation and quick-closing nets 8. As Figure 1 and Figure 7As shown, the support device includes a main shaft 1. A cylinder shaft 2 is rotatably arranged coaxially on the main shaft 1. A fixing member 3 for fixing the rotation angles of the main shaft 1 and the cylinder shaft 2 is provided on the main shaft 1. The fixing member 3 includes a threaded outer cylinder 31 fixed on the outer side of the upper end of the main shaft 1, a abutting platform 32 fixed on the outer side of the lower end of the main shaft 1, and a locking cylinder 33 threadedly connected to the threaded outer cylinder 31. The cylinder shaft 2 rotates between the threaded outer cylinder 31 and the abutting platform 32. Rotating the locking cylinder 33 makes the locking cylinder 33 abut against the upper end of the cylinder shaft 2. The rotation angle between the main shaft 1 and the cylinder shaft 2 can be fixed by the fixing member 3. A layer of anti-slip rubber is provided on the outer side of the locking cylinder 33 and the outer side of the top end of the cylinder shaft 2, which is convenient for manual rotation. In the support device, the upper ends of the main shaft 1 and the cylinder shaft 2 extend out from the top iron net of the post-cast slot, which is convenient for the operation of the operator; as Figure 3 As shown, a retractable fork-shaped abutting frame 4 is respectively provided on the main shaft 1 and the cylinder shaft 2. The rotation point of the fork-shaped abutting frame 4 is fixed by a nut 41. The two freely rotating ends of the two fork-shaped abutting frames 4 respectively abut against the upper and lower positions of the sides of two opposite quick-closing mesh sheets 8, so that the quick-closing mesh sheets 8 are kept vertical. A through hole 11 is opened inside the main shaft 1. A tensioning cover 5 is threadedly connected to the upper end of the main shaft 1. A steel rope 6 is connected to the bottom of the tensioning cover 5. There are also two hooks 7, as Figure 2 As shown, the two hooks 7 are respectively hooked on the middle openings on the sides of the quick-closing mesh sheets 8. The steel rope 6 passes out from the lower end of the main shaft 1 along the through hole 11, passes through the two hooks 7 respectively and then enters the through hole 11 again from the lower end of the main shaft 1, and is finally fixed on the tensioning cover 5. In order to avoid the contact and friction of the steel rope 6, refer to Figure 6 , a horizontal lower guide groove 12 is provided on the lower end surface of the main shaft 1, and two side holes 13 are provided on the side surface of the lower end of the main shaft 1. The steel rope 6 is distributed in the side holes 13 and the lower guide groove 12. Through the guidance of the lower guide groove 12 and the side holes 13, there is a gap between the steel ropes 6, and they will not be subject to excessive friction and interference.

[0025] In this scheme, the two fork-shaped brackets 4 of the supporting device support the relative quick-and-easy closing net 8, and the free ends of the fork-shaped brackets 4 are against the upper and lower sides of the quick-and-easy closing net 8, so that the quick-and-easy closing net 8 is vertically supported, and the hook 7 is hung on the opening of the quick-and-easy closing net 8. As the concrete is poured and solidified in the concrete, it is a consumable. The steel rope 6 passes through the two hooks 7 and moves upward through the rotation of the tightening cover 5, so that the steel rope 6 is effectively tightened. As the steel rope 6 is recovered and tightened, the hook 7 pulls the quick-and-easy closing net 8 inward, so that the quick-and-easy closing net 8 is against the fork-shaped bracket 4; after the quick-and-easy closing net 8 is supported by the supporting device, it can be carried out After the concrete is poured on the outer side of the post-cast strip and the concrete solidifies, one end of the steel rope 6 is removed, the steel rope 6 is pulled out, the nut 41 is loosened, and the barrel shaft 2 is rotated, so that the fork-shaped support frame 4 can be folded into a long strip shape, which is convenient for taking out the steel rope 6 net from the upper side of the post-cast strip. The introduction of this supporting device provides a new fixing method for the quick-and-easy closing net 8 of the post-cast strip. There is no need to weld vertical fixed steel bars at the post-cast strip. The fixation of the quick-and-easy closing net 8 can be ensured only by the supporting device. This supporting device is easy to install and remove, and can be quickly built when the upper steel rope 6 net is not built. It can also be taken out from the mesh steel mesh and can be reused, thereby improving the installation efficiency of the quick-and-easy closing net 8.

[0026] In a further solution, Figure 3 and Figure 4 As shown, the fork-shaped support frame 4 includes an upper support rod 42, a lower support rod 43 and a connecting rod 44. The two connecting rods 44 are respectively fixed to the main shaft 1 and the coaxial side and extend obliquely downward. A slide groove 441 is provided on the connecting rod 44, and a threaded column 442 is fixed at the end of the slide groove 441. A first groove 431 is provided at the end of the lower support rod 43, and a second groove 421 is provided at the end of the upper support rod 42. The lower support rod 43 is slidably arranged in the slide groove 441, so that the lower support rod 43 slides along the extension direction of the connecting rod 44, and the threaded column 442 passes through the first groove 431 and the second groove 421 respectively. 1. The upper support rod 42 rotates on the threaded column 442, and the threaded column 442 can slide along the first groove 431 and the second groove 421; the nut 41 is threadedly connected to the threaded column 442 and presses the upper support rod 42 and the lower support rod 43. The edge height of the slide groove 441 is slightly lower than the thickness of the lower support rod 43. After the thread is tightened, the nut 41 can press the upper support rod 42 and the lower support rod 43. Preferably, an L-shaped bottom plate 45 is fixed to the end of the lower support rod 43, and one side of the L-shaped bottom plate 45 is perpendicular to the horizontal plane and the other side is parallel to the horizontal plane. This structure is used to keep the support device standing stably when it is not fixed.

[0027] In this solution, both the upper support rod 42 and the lower support rod 43 can slide along the threaded column 442, and the upper support rod 42 can rotate on the threaded column 442. By loosening the nut 41, the support height and support length of the fork-shaped abutment 4 can be adjusted. Again, the relative distance between the upper support column and the lower support column can be fixed by the nut 41. This structure can adapt to the quick and easy closing net 8 of different heights and two quick and easy closing nets 8 with different spacings.

[0028] In a further solution, as Figure 6 shown, a rope seat 51 is rotatably provided at the lower part of the tensioning cover 5, a through hole is formed in the tensioning cover 5, one end of the steel rope 6 is fixed on the rope seat 51, and the other end passes through the through hole and is sleeved with a retaining rod 52. The retaining rod 52 is used to tighten the end of the steel rope 6. The steps of tensioning the steel rope 6 are as follows: pull the end of the steel rope 6, fix the steel rope 6 on the retaining rod 52, and the fixing method can be clamping with a clamp block, welding, etc. Block the retaining rod 52 above the tensioning cover 5, and continue to rotate the tensioning cover 5 to move the tensioning cover 5 upward to completely tension the steel rope 6; the rope seat 51 and the tensioning cover 5 are rotatably connected, and when the tensioning cover 5 is rotated to move the steel rope 6 upward, the resistance caused by the self-rotation of the steel rope 6 can be avoided.

[0029] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit. 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 support device for the quick-installation closing net (8) of a post-cast strip, characterized in that: It includes a main shaft (1), on which a cylinder shaft (2) is coaxially rotatably provided. A fixing member (3) for fixing the rotation angles of the main shaft (1) and the cylinder shaft (2) is provided on the main shaft (1). Fork-shaped abutting frames (4) that can be expanded and retracted are respectively provided on the main shaft (1) and the cylinder shaft (2). The rotation points of the fork-shaped abutting frames (4) are fixed by nuts (41). The two rotation free ends of the two fork-shaped abutting frames (4) respectively abut against the upper and lower positions on the sides of two opposite quick-closing meshes (8). A through hole (11) is opened inside the main shaft (1). A tensioning cover (5) is threadedly connected to the upper end of the main shaft (1). A steel cable (6) is connected to the bottom of the tensioning cover (5). It also includes two hooks (7). The two hooks (7) are respectively hooked on the middle openings on the sides of the quick-closing mesh (8). The steel cable (6) passes out of the main shaft (1) from the lower end along the through hole (11), passes through the two hooks (7) respectively and then passes into the through hole (11) from the lower end of the main shaft (1) again, and is finally fixed on the tensioning cover (5); The fork-shaped abutting frame (4) includes an upper support rod (42), a lower support rod (43) and a connecting rod (44). The two connecting rods (44) are respectively fixed on the main shaft (1) and the coaxial side surface and extend obliquely downward. A chute (441) is opened on the connecting rod (44). A threaded column (442) is fixed at the end of the chute (441). A first slot (431) is opened at the end of the lower support rod (43). A second slot (421) is opened at the end of the upper support rod (42). The lower support rod (43) slides in the chute (441). The threaded column (442) passes through the first slot (431) and the second slot (421) respectively. The nut (41) is threadedly connected to the threaded column (442) and presses the upper support rod (42) and the lower support rod (43); A horizontal lower guide groove (12) is provided on the lower end surface of the main shaft (1). Two side holes (13) are provided on the side surface of the lower end of the main shaft (1). The steel cable (6) is distributed in the side holes (13) and the lower guide groove (12); A cable seat (51) is rotatably provided at the lower part of the tensioning cover (5). A through hole is opened on the tensioning cover (5). One end of the steel cable (6) is fixed on the cable seat (51), and the other end passes out of the through hole and is sleeved with a stop rod (52).

2. The quick-installing closing net (8) support device for the post-cast strip according to claim 1, wherein: An L-shaped bottom plate (45) is fixed at the end of the lower support rod (43). One side of the L-shaped bottom plate (45) is perpendicular to the horizontal plane, and the other side is parallel to the horizontal plane.

3. The quick-installing closure net (8) support device for the post-cast strip according to claim 1, characterized in that: The fixing member (3) includes a threaded outer cylinder (31) fixedly provided on the outer side of the upper end of the main shaft (1), an abutting platform (32) fixed on the outer side of the lower end of the main shaft (1), and a locking cylinder (33) threadedly connected to the threaded outer cylinder (31). The cylinder shaft (2) rotates between the threaded outer cylinder (31) and the abutting platform (32). Rotating the locking cylinder (33) makes the locking cylinder (33) abut against the upper end of the cylinder shaft (2).

4. The support device for the quick-installation closing net (8) of the post-cast strip according to claim 3, characterized in that: A layer of anti-slip rubber is provided on the outer side of the locking cylinder (33) and on the outer side of the top end of the cylinder shaft (2).

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