Rapid detection tool suitable for railway prefabricated cover plate reinforcing steel bars

Abstract

The utility model belongs to the field of concrete pouring, and particularly relates to a rapid detection tool suitable for railway prefabricated cover plate steel bars, which comprises a rectangular frame formed by fixedly connecting transverse pipes, supporting legs fixed at four corners of the rectangular frame, and a steel bar detection assembly movably mounted on the rectangular frame, the reinforcing steel bar detection assembly is arranged corresponding to the positions of longitudinal reinforcing steel bars and transverse reinforcing steel bars in a standard reinforcing steel bar mesh of the prefabricated cover plate; the steel bar detection assembly comprises a vertical cylinder installed on the rectangular frame, a vertical rod capable of sliding up and down along the vertical cylinder and a clamping groove fixed to the bottom end of the vertical cylinder. The clamping groove is in a step shape with a small upper part and a large lower part; according to the utility model, through the specially designed reinforcing steel bar detection assemblies and the arrangement of the reinforcing steel bar detection assemblies on the rectangular frame, the problem of rapid detection of reinforcing steel bar spacing, reinforcing steel bar number and reinforcing steel bar diameter is solved, the detection is convenient and rapid, three-phase detection of reinforcing steel bar spacing, reinforcing steel bar number and reinforcing steel bar diameter can be completed at one time, and detection labor and detection time are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete pouring, and in particular relates to a rapid detection tool suitable for railway prefabricated cover plate steel bars. Background Art

[0002] At present, with the development of social economy, all walks of life have higher and higher requirements for product quality, and the same is true for prefabricated components. Taking the prefabricated cover plate of tunnel ditch as an example, in the past, little attention was paid to the thickness of the protective layer of the steel bars in the cover plate, the type of steel bars, and the number and spacing of the steel bars. Since there are only two types of steel bars in the cover plate, namely longitudinal φ6mm and transverse φ8mm, the steel bars are thin and the amount used is also small. If you are not careful and not pay attention during construction, the longitudinal and transverse steel bars may be placed reversely, and the wrong steel bar model may be used, which will lead to the steel bar arrangement not meeting the design requirements, the product being unqualified, and the product being scrapped, causing economic losses and loss of corporate reputation.

[0003] In addition, in the past, when controlling the thickness of the concrete protective layer, people only paid attention to the protective layer in the thickness direction of the component, and often ignored the control of the protective layer in the longitudinal and transverse directions of the component. During construction, since the concrete vibration method used in small prefabricated components is a construction process of vibration table vibration, poor control of the exciting force during the vibration process will cause the steel bars to be vibrated out of position, and then cause the steel mesh to deviate from the designed position, resulting in the longitudinal and transverse concrete protective layer thickness of the component being larger on one side and smaller on the other side.

[0004] Traditionally, checking rebar spacing has involved manual inspection with a steel tape measure, rebar quantity by counting each rebar individually, and rebar type by manually checking with a vernier caliper. This is a very labor-intensive process. Furthermore, the sheer volume of prefabricated components places a high demand on both the number and responsibility of quality inspectors. Therefore, a tool capable of rapidly detecting the number, type, and spacing of cover plate rebar is urgently needed to address this issue. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a fast detection tool suitable for railway prefabricated cover plate steel bars.

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

[0007] A rapid inspection tool for railway prefabricated cover steel bars comprises a rectangular frame formed by fixedly connecting transverse tubes, legs fixed at the four corners of the rectangular frame, and a removable steel bar inspection component mounted on the rectangular frame; the steel bar inspection component is arranged to correspond to the position of the longitudinal and transverse steel bars in the standard steel mesh of the prefabricated cover;

[0008] The steel bar detection assembly includes a vertical cylinder installed on a rectangular frame, a vertical rod that can slide up and down along the vertical cylinder, and a slot fixed at the bottom end of the vertical cylinder; the slot is a stepped type with a small top and a large bottom, and the slot consists of an upper slot and a lower slot connected up and down. The width of the upper slot is 7-7.8mm and the depth is not less than 6mm. The width of the lower slot is 8-10mm and the depth is not less than 4mm.

[0009] In one embodiment, the vertical tube is cylindrical, and the vertical rod is inserted into the vertical tube; a sliding hole is numerically opened on the peripheral wall of the vertical tube, the sliding hole is open at the top and closed at the bottom, and a sliding plate that moves along the sliding hole is fixed on the vertical rod.

[0010] Furthermore, a slope is provided at the upper opening of the sliding hole to facilitate the entry of the sliding piece.

[0011] Furthermore, the slide is provided with an alignment mark, and the vertical cylinder is provided with an upper mark for indicating that the transverse reinforcement is in place and a lower mark for indicating that the longitudinal reinforcement is in place.

[0012] Furthermore, a writing and drawing area is provided on the vertical tube for facilitating writing, and the upper mark and the lower mark are located in the writing and drawing area.

[0013] Furthermore, a mounting seat is fixed on the peripheral wall of the vertical tube, the horizontal tube is a square tube, and the mounting seat is installed on the horizontal tube through bolt threads.

[0014] Furthermore, a slide is fixed on the peripheral wall of the vertical cylinder, and a locking mechanism is provided on the slide; the horizontal tube is a profile guide rail, and the slide is slidably connected to the profile guide rail.

[0015] In another embodiment, an elongated rod hole is provided on the vertical rod, and the rod hole passes through in the horizontal direction; the vertical tube is installed on the horizontal tube through a mounting seat; the vertical tube is composed of two concave or L-shaped claws arranged opposite to each other, one end of the claw is fixed on the mounting seat, and the other end of the claw extends into the rod hole.

[0016] Furthermore, the height of the legs is consistent with the thickness of the corner concrete protective layer in the design drawings.

[0017] Furthermore, a handle is provided on the rectangular frame.

[0018] The beneficial effects of the utility model are:

[0019] The utility model solves the problem of rapid detection of steel bar spacing, steel bar quantity and steel bar diameter through specially designed steel bar detection components and the layout of the steel bar detection components on a rectangular frame. In the past, manual detection was time-consuming and labor-intensive, so the tooling is an integrated tooling. During detection, it is only necessary to place the tooling on the steel mesh. By observing the status of the steel bar detection components, it can be known whether the steel bar spacing, quantity and diameter are correct. There is no need to use tools such as steel tape measures and vernier calipers at the same time. It is convenient and fast, and can complete the three-phase detection of steel bar spacing, quantity and diameter at one time, saving detection labor and detection time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting part of this application are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention.

[0021] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model.

[0022] Figure 2 This is a schematic structural diagram of the steel bar detection component of Example 1 of the present utility model.

[0023] Figure 3 This is a schematic diagram of the steel bar detection component of Example 1 of the utility model detecting transverse steel bars.

[0024] Figure 4 This is a schematic diagram of the steel bar detection component of Example 1 of the utility model detecting longitudinal steel bars.

[0025] Figure 5 This is a schematic structural diagram of the steel bar detection component of Example 2 of the present utility model.

[0026] In the figure: 1. Support leg; 2. Horizontal tube; 3. Mounting seat; 4. Vertical tube; 41. Sliding hole; 42. Upper mark; 43. Lower mark; 44. Claw; 5. Vertical rod; 51. Rod hole; 6. Upper groove; 7. Lower groove; 8. Slide; 81. Alignment mark; 100. Horizontal reinforcement; 200. Longitudinal reinforcement. DETAILED DESCRIPTION

[0027] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0028] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0030] like Figures 1 to 5 As shown, a rapid inspection tool for railway prefabricated cover steel bars includes a rectangular frame formed by a fixed connection of transverse tubes 2, legs 1 fixed at the four corners of the rectangular frame, and a removable steel bar detection component mounted on the rectangular frame; the steel bar detection component is arranged corresponding to the position of the longitudinal steel bars 200 and the transverse steel bars 100 in the standard steel mesh of the prefabricated cover;

[0031] The steel bar detection assembly includes a vertical tube 4 mounted on a rectangular frame, a vertical rod 5 that can slide up and down along the vertical tube 4, and a slot fixed at the bottom of the vertical tube 4. The slot is a stepped type that is smaller at the top and larger at the bottom. The slot consists of an upper slot 6 and a lower slot 7 that are connected from top to bottom. The upper slot 6 has a width of 7-7.8mm and a depth of not less than 6mm, while the lower slot 7 has a width of 8-10mm and a depth of not less than 4mm. For example, the upper slot 6 can have a width of 7mm, 7.5mm, or 7.8mm and a depth of 6mm, 7mm, 8mm, 9mm, or 10mm; the lower slot 7 can have a width of 8.5mm, 9mm, 9.5mm, or 10mm and a depth of 5mm, 6mm, 7mm, 8mm, 9mm, or 10mm.

[0032] The utility model adopts a specially designed slot, and is suitable for detecting both φ8mm transverse steel bars 100 and φ6mm longitudinal steel bars 200. Figure 3 、 Figure 4As shown, the vertical rod 5 naturally drops to the limit in the vertical tube. After being installed on the steel mesh, the transverse steel bar 100 or the longitudinal steel bar 200 should enter the slot. The transverse steel bar 100 can only be accommodated in the lower slot 7, while the longitudinal steel bar 200 can pass through the lower slot 7 and enter the upper slot 6 due to its small size. In this way, for the entire row of longitudinal or transverse steel bars, the height of the vertical rod 5 after being lifted by the steel bar should also be the same. Therefore, by observing the height of the vertical rod 5 being lifted, and combining it with whether the alignment mark and the upper mark / lower mark are aligned, it is possible to quickly determine whether the steel bar model is correct. As for the spacing and number of steel bars, since the size of the upper and lower grooves is only slightly larger than the size of the steel bars, if the position of the steel bars in the steel mesh is incorrect, the steel bars cannot accurately enter the slots, which will cause the vertical rods to be unable to be lifted up (corresponding to the situation where the steel bars are completely out of contact with the slots) or the vertical rods are lifted up to an incorrect height (corresponding to the situation where the steel bars support the lower slot wall or the upper slot wall due to a slight misalignment). Therefore, whether the spacing and number of steel bars are correct can be judged based on whether the vertical rods are lifted up into place. Figure 3 Schematic diagram of the rapid detection tool of the present invention for detecting and installing standard transverse steel bars 100. Figure 4 The diagram in the middle is a diagram of the quick detection tool for detecting and installing standard longitudinal steel bars 200. Figure 5 The middle is a schematic diagram of the position of the rapid detection tool in a natural state, at which time the vertical rod 5 naturally falls to the lowest position.

[0033] Before use, first select a standard prefabricated cover steel mesh from the existing steel mesh or make a standard prefabricated cover steel mesh, then install the rectangular frame of this tool on the standard mesh, and then install the steel bar detection components one by one according to the position of the transverse steel bar 100 and the longitudinal steel bar 200, and each steel bar corresponds to the steel bar detection component one by one. The alignment mark 81 is made in advance. After this tool is installed on the standard steel mesh, the transverse steel bar 100 or the longitudinal beam steel bar will lift the vertical bar 5, and then make the upper mark 42 or the lower mark 43 on the vertical tube 4 according to the position of the alignment mark 81. After this tool is completed, it can be used to detect the number, model, and spacing of steel bars of other prefabricated cover steel meshes. It is simple, fast, and saves time and effort.

[0034] The above description and accompanying drawings of this embodiment are based on a single-layer prefabricated cover plate. The present invention is also applicable to double-layer or multi-layer prefabricated cover plates. It is only necessary to lengthen the vertical tube 4 and vertical rod 5 accordingly and to provide indicator marks corresponding to the position of each layer of steel mesh on the vertical tube 4.

[0035] Further, such as Figure 1As shown, the support leg 1 is made of square steel tubes, which are positioned and installed at the four corners of the cover plate mold, and their positions are consistent with the corner concrete protection layer in the design drawings; when in use, the tool is quickly installed on the cover plate mold, just in the mesh holes of the steel mesh at the four corners, and the steel mesh is clamped, ensuring that the entire steel mesh in the mold cannot be displaced, thereby ensuring that the vibration force will not affect the displacement of the steel bars when pouring concrete, ensuring the consistency of the thickness of the concrete protection layer in the longitudinal and transverse directions of the cover plate, avoiding the quality problems of leaking reinforcement on the side of the cover plate, insufficient thickness of the cover plate side protection layer or too large protection layer, and improving the quality of the product. Since this tool is an integrated tool, you only need to place this tool on the mold to complete the operation during installation. It is easy and quick to use, and improves work efficiency. In a specific example, the support leg 1 is made of 40×40mm square steel pipe, so that the support leg 1 can fit into the mesh at the corner of the prefabricated cover steel mesh; the cross tube 2 is made of 20×20mm square steel pipe, and the cross tube 2 is used to connect the support leg 1 and facilitate the installation of the steel bar detection component; in order to facilitate the removal and installation of this tool, a handle can also be provided on the rectangular frame.

[0036] Two embodiments of steel bar detection components with different structures are given below.

[0037] Example 1

[0038] In this embodiment, the steel bar detection component adopts an insert-tube structure as a whole. The raw materials are widely available and can be made using leftover materials at the construction site, and the production is convenient.

[0039] like Figures 1 to 4 As shown, the vertical tube 4 is cylindrical, and the vertical rod 5 is inserted into the vertical tube 4; a sliding hole 41 is numerically opened on the peripheral wall of the vertical tube 4, and the sliding hole 41 is open at the top and closed at the bottom, and a sliding piece 8 that moves along the sliding hole 41 is fixed on the vertical rod 5.

[0040] Further, such as Figure 1 、 Figure 2 As shown, the upper opening of the sliding hole 41 is provided with a slope to facilitate the entry of the sliding piece 8.

[0041] Further, such as Figure 2 、 Figure 3As shown, the slide 8 is provided with an alignment mark 81, and the vertical tube 4 is provided with an upper mark 42 for indicating that the transverse reinforcement 100 is in place and a lower mark 43 for indicating that the longitudinal reinforcement 200 is in place. The upper mark 42 and the lower mark 43 have different shapes, fillings, colors or indicated values ​​for easy distinction. The alignment mark 81, the upper mark 42 and the lower mark 43 are made by scoring, writing, spray painting, water transfer, etc. During production, the alignment mark 81 is first made on the slide 8, and then the tool is installed on the standard prefabricated cover steel mesh. The vertical rod 5 is moved upward relative to the vertical tube 4, and then the mark 42 on the vertical tube 4 is marked at a position corresponding to the alignment mark 81.

[0042] Furthermore, in order to facilitate on-site production of the upper mark 42 and the lower mark 43, a writing area is provided on the vertical cylinder 4. The surface of the writing area is flat, which is convenient for writing with a marker, paint pen, pencil, etc., and is not easy to write crookedly. The upper mark 42 and the lower mark 43 are drawn on-site in the writing area when the tooling is applied to a standard prefabricated cover steel mesh.

[0043] Specifically, a mounting base 3 is fixed to the peripheral wall of the vertical tube 4. The horizontal tube 2 is a square tube, and the mounting base 3 is threadedly mounted on the horizontal tube 2 via bolts. In this embodiment, the mounting base 3 can be an L-shaped angle bracket, the vertical rod 5 is a round rod, and the vertical tube 4 is made by cutting a round rod slightly larger than the vertical rod 5 and then defining a sliding hole 41.

[0044] In an optional embodiment, a slide is fixed on the peripheral wall of the vertical cylinder 4, and a locking mechanism is provided on the slide; the horizontal tube 2 is a profile guide rail, and the slide is slidably connected to the profile guide rail; that is, this embodiment changes the square tube into a profile, which is more expensive than the square tube.

[0045] Example 2

[0046] In this embodiment, a vertical cylinder 4 consisting of two self-made claws 44 is used.

[0047] like Figure 5 As shown, the vertical rod 5 begins with an elongated rod hole 51, which extends horizontally through the vertical tube 2. The vertical tube 4 is mounted on the horizontal tube 2 via the mounting base 3. The vertical tube 4 is composed of two oppositely arranged concave or L-shaped claws 44, one end of which is fixed to the mounting base 3, and the other end of which extends into the rod hole 51. Specifically, the claws 44 can be made by cutting a square tube in half and then welding it to the mounting base 3. This embodiment provides an alternative form of cooperation between the vertical rod 5 and the vertical tube 4, but compared to the cylindrical vertical tube 4 in Example 1, it is more complicated to manufacture.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A rapid detection tool suitable for railway prefabricated cover steel bars, characterized by: The invention comprises a rectangular frame formed by fixedly connecting transverse tubes (2), supporting legs (1) fixed at the four corners of the rectangular frame, and a removable steel bar detection component mounted on the rectangular frame; the steel bar detection component is arranged to correspond to the position of the longitudinal steel bars (200) and the transverse steel bars (100) in the standard steel bar mesh of the prefabricated cover plate; The steel bar detection assembly comprises a vertical cylinder (4) mounted on a rectangular frame, a vertical rod (5) that can slide up and down along the vertical cylinder (4), and a card slot fixed at the bottom end of the vertical cylinder (4); the card slot is a stepped type with a smaller upper portion and a larger lower portion, and the card slot is composed of an upper slot (6) and a lower slot (7) that are connected to each other from top to bottom; the width of the upper slot (6) is 7.0-7.8 mm and the depth is not less than 6 mm; the width of the lower slot (7) is 8-10 mm and the depth is not less than 4 mm.

2. The rapid detection tool for railway prefabricated cover steel bars according to claim 1 is characterized in that: The vertical tube (4) is cylindrical, and the vertical rod (5) is inserted into the vertical tube (4); a sliding hole (41) is numerically opened on the peripheral wall of the vertical tube (4), the sliding hole (41) is open at the top and closed at the bottom, and a sliding plate (8) is fixed on the vertical rod (5) and moves along the sliding hole (41).

3. The rapid detection tool for railway prefabricated cover steel bars according to claim 2 is characterized in that: The upper opening of the sliding hole (41) is provided with a slope for facilitating the entry of the sliding piece (8).

4. The rapid detection tool for railway prefabricated cover steel bars according to claim 2 is characterized in that: The slide (8) is provided with an alignment mark (81), and the vertical cylinder (4) is provided with an upper mark (42) for indicating that the transverse reinforcement (100) is in place and a lower mark (43) for indicating that the longitudinal reinforcement (200) is in place.

5. The rapid detection tool for railway prefabricated cover steel bars according to claim 4 is characterized in that: The vertical cylinder (4) is provided with a writing and drawing area for facilitating writing, and the upper mark (42) and the lower mark (43) are located in the writing and drawing area.

6. The rapid detection tool for railway prefabricated cover steel bars according to claim 1 is characterized in that: A mounting seat (3) is fixed on the peripheral wall of the vertical cylinder (4); the horizontal tube (2) is a square tube; and the mounting seat (3) is mounted on the horizontal tube (2) via bolt threads.

7. The rapid detection tool for railway prefabricated cover steel bars according to claim 1 is characterized in that: A sliding seat is fixed on the peripheral wall of the vertical cylinder (4), and a locking mechanism is provided on the sliding seat; the horizontal tube (2) is a profile guide rail, and the sliding seat is slidably connected to the profile guide rail.

8. The rapid detection tool for railway prefabricated cover steel bars according to claim 1 is characterized in that: The vertical rod (5) begins with an elongated rod hole (51), which penetrates in the transverse direction; the vertical cylinder (4) is mounted on the horizontal tube (2) via a mounting seat (3); the vertical cylinder (4) is composed of two oppositely arranged concave or L-shaped claws (44), one end of the claw (44) is fixed on the mounting seat (3), and the other end of the claw (44) extends into the rod hole (51).

9. The rapid detection tool for railway prefabricated cover steel bars according to claim 1 is characterized in that: The height of the supporting legs (1) is consistent with the thickness of the corner concrete protective layer in the design drawing.

10. The rapid detection tool for railway prefabricated cover steel bars according to claim 1, characterized in that: A handle is provided on the rectangular frame.

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