Steel bar mesh protective layer control tool for thin-wall cavity multi-curve bare concrete arch

Abstract

The utility model discloses a thin-wall cavity multi-curve bare concrete arch reinforcing mesh protective layer control tool which comprises a plurality of sleeve assemblies used for being connected with reinforcing steel bars on reinforcing meshes in a sleeved mode, and the adjacent sleeve assemblies are hinged to form a whole. The locking assembly is arranged on the sleeve assembly and used for locking the position of the sleeve assembly on the reinforcing mesh; the arc-shaped cushion block is fixedly arranged on the outer wall of the sleeve assembly, located on the opposite side of the locking assembly and used for abutting against a pouring formwork. The sleeve assemblies and the arc-shaped cushion blocks which are mutually hinged are arranged, the whole formed by hinging the sleeve assemblies is laid on the whole reinforcing mesh in an attached mode, and therefore when the reinforcing mesh is subjected to external force applied in the process of sleeving and locking the steel outer mold, the reinforcing mesh cannot protrude outwards and deform due to blocking of the sleeve assemblies and the arc-shaped cushion blocks; and the thickness of the protective layer of the reinforcing mesh is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of steel mesh protective layer control, in particular to a tooling for controlling the protective layer of a thin-walled hollow multi-curved plain concrete arch steel mesh. Background Art

[0002] In the field of modern architecture, thin-walled cavity multi-curved fair-faced concrete arch is a building component that combines complex geometric shapes with fine craftsmanship. Before pouring the fair-faced concrete arch with this special structure, it is necessary to first build a casting inner mold, and use the casting inner mold as the reference surface. Tie and lay two layers of curved steel mesh parallel to the casting inner mold, and then put a steel outer mold on the outside of the outermost layer of steel mesh. The casting inner mold and the steel outer mold together constitute the casting template of the thin-walled cavity multi-curved fair-faced concrete arch.

[0003] In order to prevent the steel mesh from being exposed after the concrete arch is cast, multiple pads should be evenly arranged between the steel mesh and the casting formwork to control the distance between the steel mesh and the casting formwork so that a concrete protective layer is formed between the steel mesh and the casting formwork after the concrete arch is cast. Adjacent pads are fixed on the steel mesh at a certain distance and abut the casting formwork. However, due to the inevitable problem of inaccurate positioning during the binding and laying of the steel mesh, the steel outer formwork will squeeze the steel mesh and the pads fixed on the steel mesh when it is sleeved and locked, causing the steel mesh to deform. Some parts of the steel mesh not covered by the pads are more likely to bulge outward or concave during the deformation process. The distance between the steel mesh and the casting formwork at the convex part is small, or even directly abuts the casting formwork, which is not conducive to the control of the steel mesh protective layer.

[0004] To this end, the present application specifically proposes a thin-walled cavity multi-curved plain concrete arch steel mesh protective layer control tooling to solve the above-mentioned technical problems. Utility Model Content

[0005] The main purpose of the utility model is to solve the above-mentioned deficiencies and provide a thin-walled hollow multi-curved plain concrete arch steel mesh protective layer control tooling, which can reduce the local deformation of the steel mesh when the steel mesh is extruded by the steel outer mold, thereby making the protective layer thickness more uniform and reducing the risk of exposure of the steel mesh after the concrete arch is formed.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The protective layer control tooling of the steel mesh of a thin-walled cavity multi-curved plain concrete arch comprises: a plurality of sleeve assemblies for sleeve-engaging the steel bars on the steel mesh, wherein adjacent sleeve assemblies are hinged and formed as a whole; a locking assembly arranged on the sleeve assembly for locking the position of the sleeve assembly on the steel mesh; an arc-shaped pad fixedly arranged on the outer wall of the sleeve assembly and located on the opposite side of the locking assembly for abutting against the casting formwork.

[0008] Furthermore, the sleeve assembly comprises a sleeve with an opening on one side and hinge blocks fixedly arranged on both sides of the sleeve, and the width of the opening on the sleeve is smaller than the inner diameter of the sleeve.

[0009] Furthermore, a plurality of clamping columns are evenly arranged on the inner wall of the sleeve.

[0010] Furthermore, the locking assembly includes two positioning plates symmetrically arranged on both sides of the sleeve opening, a through hole opened on one of the positioning plates, a threaded hole opened on the other positioning plate at a position corresponding to the through hole, and a bolt passing through the through hole and threadedly connected to the threaded hole.

[0011] Furthermore, oblique reinforcement ribs are provided between the positioning plate and the outer wall of the sleeve.

[0012] Furthermore, one of the positioning plates is provided with a first boss connected to the through hole on one side of the obliquely-stretched reinforcing rib, and the other positioning plate is provided with a second boss connected to the threaded hole on one side of the obliquely-stretched reinforcing rib.

[0013] Furthermore, the central axis of the arc-shaped pad coincides with the central axis of the sleeve.

[0014] The beneficial effects of the utility model are embodied in:

[0015] The utility model provides a plurality of sleeve assemblies hinged to each other and arc-shaped pads arranged on the sleeve assemblies. When in use, the sleeve assemblies are hinged to form a whole that is snugly mounted on each section of bent steel bars, eventually covering the entire steel mesh. In this way, when the steel mesh is subjected to external force applied during the process of sleeve-locking the steel outer mold, the sleeve assemblies and the arc-shaped pads fully block it and prevent it from convexly deforming toward the casting template, thereby ensuring the thickness of the protective layer of the steel mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a sleeve assembly according to an embodiment of the utility model;

[0019] Figure 3 A half-section schematic diagram of a positioning plate according to an embodiment of the utility model;

[0020] Figure 4 A side view of an embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the installation position of an embodiment of the utility model;

[0022] Figure 6 This is a schematic diagram of the use status of an embodiment of the utility model.

[0023] In the figure: 1. sleeve assembly; 11. sleeve; 12. hinge block; 2. locking assembly; 21. positioning plate; 22. through hole; 23. threaded hole; 24. bolt; 3. arc-shaped pad; 4. casting formwork; 5. steel mesh; 6. clamping column; 7. oblique reinforcement rib; 8. first boss; 9. second boss. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] like Figure 1-6 As shown, the utility model provides a thin-walled cavity multi-curved plain concrete arch steel mesh protective layer control tooling, comprising:

[0026] A plurality of sleeve assemblies 1 are used to sleeve the steel bars on the steel mesh 5, and adjacent sleeve assemblies 1 are hinged to form a whole;

[0027] The locking assembly 2 is arranged on the sleeve assembly 1 and is used to lock the position of the sleeve assembly 1 on the steel mesh 5;

[0028] The arc-shaped pad 3 is fixedly arranged on the outer wall of the sleeve assembly 1 and is located on the opposite side of the locking assembly 2 , and is used for abutting against the casting template 4 .

[0029] When in use, first sleeve the sleeve assembly 1 onto the transverse and vertical bars of the steel mesh 5, leaving only the cross-binding parts of the transverse and vertical bars empty. Since the sleeve assemblies 1 are hinged to each other, the whole formed by the multiple sleeve assemblies 1 can be bent to adapt to and fit the curvature of the bending of the steel bars in the steel mesh 5. Then rotate the sleeve assembly 1, adjust the arc pad 3 toward the casting template 4, and finally fix the multiple sleeve assemblies 1 on the steel bars through the locking assembly 2. Repeat the above operation until each section of steel bars on the steel mesh 5 is covered with the sleeve assembly 1. At this time, if the steel mesh 5 is subjected to pressure applied by the external steel mold, due to the blocking effect of the sleeve assembly 1 and the arc pad 3, the steel mesh 5 cannot bulge outward, and will not contact the casting template 4, thereby ensuring the thickness of the protective layer of the steel mesh 5.

[0030] It should be noted that Figure 5 and Figure 6 The sleeve assembly in the figure only covers a small section of the transverse and vertical bars, and is only used as a rough indication of the installation position and use status of this embodiment. In actual use, the entire steel mesh should be covered with the sleeve assembly.

[0031] In one embodiment, the sleeve assembly 1 includes a sleeve 11 with an opening on one side and hinge blocks 12 fixedly arranged on both sides of the sleeve 11, and the width of the opening on the sleeve 11 is smaller than the inner diameter of the sleeve 11. In this design, adjacent sleeves 11 are hinged through the hinge blocks 12 and form a whole.

[0032] In one embodiment, a plurality of clamping columns 6 are evenly arranged on the inner wall of the sleeve 11. The steel bars used for tying and laying the steel mesh 5 are threaded steel bars. With this design, after the locking assembly 2 is locked, some of the clamping columns 6 are locked into the thread grooves of the threaded steel bars, making the fixing of the sleeve assembly 1 more stable and difficult to rotate or move relative to the steel bars.

[0033] In one embodiment, the locking assembly 2 includes two positioning plates 21 symmetrically arranged on both sides of the opening of the sleeve 11, a through hole 22 provided on one of the positioning plates 21, a threaded hole 23 provided on the other positioning plate 21 at a position corresponding to the through hole 22, and a bolt 24 passing through the through hole 22 and threadedly connected to the threaded hole 23. With this design, the distance between the two positioning plates 21 can be increased or decreased by rotating the bolt 24, and then the two positioning plates 21 drive the sleeve 11 to contract or expand. When the sleeve 11 contracts, it will compress the steel bar sleeved therein, thereby fixing the sleeve assembly 1 on the steel bar.

[0034] It should be noted that before the sleeve assembly 1 is sleeved on the steel bar, the bolt 24 should be screwed out of the threaded hole 23 to avoid interference with the steel bar.

[0035] In one embodiment, an oblique reinforcement rib 7 is provided between the positioning plate 21 and the outer wall of the sleeve 11. This design improves the connection strength between the positioning plate 21 and the sleeve 11.

[0036] In one embodiment, one side of one of the positioning plates 21 provided with the oblique reinforcement rib 7 is provided with a first boss 8 communicating with the through hole 22, and the other side of the positioning plate 21 provided with the oblique reinforcement rib 7 is provided with a second boss 9 communicating with the threaded hole 23. With this design, the first boss 8 is used to abut the bottom surface of the nut of the bolt 24 to prevent the oblique reinforcement rib 7 from interfering with the process of rotating the bolt 24; the second boss 9 is used to lengthen the length of the threaded hole 23 on the basis of ensuring that the thickness of the positioning plate 21 remains unchanged, so that the threaded connection between the threaded hole 23 and the bolt 24 is more stable and reliable, and it is difficult to loosen easily.

[0037] In one embodiment, the central axis of the arc-shaped pad 3 coincides with the central axis of the sleeve 11. The thickness of the protective layer of the steel mesh 5 can be approximately regarded as the distance between the arc surface of the arc-shaped pad 3 and the inner wall of the sleeve 11. With this design, as long as the arc-shaped pad 3 abuts against the casting template 4, even if the sleeve 11 rotates during use, since the distance between the arc surface of the arc-shaped pad 3 and the inner wall of the sleeve 11 does not change, the thickness of the protective layer of the steel mesh 5 does not change, thereby improving the reliability of the tooling.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0039] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "multiple" means more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

Claims

1. Thin-walled cavity multi-curved plain concrete arch steel mesh protective layer control tooling, characterized in that: include: A plurality of sleeve assemblies (1) for sleeve-jointing the steel bars on the steel mesh (5), wherein adjacent sleeve assemblies (1) are hingedly connected to form a whole; A locking assembly (2), arranged on the sleeve assembly (1), and used for locking the position of the sleeve assembly (1) on the steel mesh (5); An arc-shaped cushion block (3) is fixedly arranged on the outer wall of the sleeve assembly (1) and is located on the opposite side of the locking assembly (2), and is used for abutting against the casting template (4).

2. The thin-walled cavity multi-curved plain concrete arch steel mesh protective layer control tool as claimed in claim 1, characterized in that: The sleeve assembly (1) comprises a sleeve (11) with an opening on one side and hinge blocks (12) fixedly arranged on both sides of the sleeve (11); the width of the opening on the sleeve (11) is smaller than the inner diameter of the sleeve (11).

3. The thin-walled cavity multi-curved plain concrete arch steel mesh protective layer control tooling as claimed in claim 2, characterized in that: A plurality of clamping columns (6) are evenly arranged on the inner wall of the sleeve (11).

4. The thin-walled cavity multi-curved bare concrete arch steel mesh protective layer control tool as claimed in claim 2, characterized in that: The locking assembly (2) comprises two positioning plates (21) symmetrically arranged on both sides of the opening of the sleeve (11), a through hole (22) provided on one of the positioning plates (21), a threaded hole (23) provided on the other positioning plate (21) at a position corresponding to the through hole (22), and a bolt (24) passing through the through hole (22) and threadedly connected to the threaded hole (23).

5. The thin-walled cavity multi-curved bare concrete arch steel mesh protective layer control tool as claimed in claim 4, characterized in that: An oblique reinforcement rib (7) is provided between the positioning plate (21) and the outer wall of the sleeve (11).

6. The thin-walled cavity multi-curved bare concrete arch steel mesh protective layer control tool as claimed in claim 5, characterized in that: One of the positioning plates (21) is provided with a first boss (8) connected to the through hole (22) on one side of the obliquely stretched reinforcing rib (7), and the other positioning plate (21) is provided with a second boss (9) connected to the threaded hole (23) on one side of the obliquely stretched reinforcing rib (7).

7. The thin-walled cavity multi-curved bare concrete arch steel mesh protective layer control tool as claimed in claim 2, characterized in that: The central axis of the arc-shaped cushion block (3) coincides with the central axis of the sleeve (11).

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