Small box girder steel bar protection layer controller

Abstract

The utility model provides a small box girder steel bar protection layer controller which comprises two steel pipes, auxiliary assemblies are arranged on the two steel pipes, adjusting assemblies are arranged on the two steel pipes, and each auxiliary assembly comprises a clamping block arranged at one end of the corresponding steel pipe, an installation piece arranged at the other end of the corresponding steel pipe and a hook arranged on the peripheral wall of the corresponding steel pipe. The adjusting assembly comprises a fixing ring arranged above the mounting piece, a clamping piece arranged under the fixing ring and a first fixing frame arranged on the clamping piece. The steel pipes, the hooks, the hinge rods and other structures are arranged, and the two steel pipes are bound to the two sides of the steel reinforcement framework through the iron wires so that the two steel pipes can be symmetrically distributed on the left side and the right side of the steel reinforcement framework, so that the steel reinforcement framework is not prone to deformation when hoisted into a mold; the distance between the two steel pipes can be changed by pushing and pulling the two steel pipes, so that the thickness of the reinforcement cage can be conveniently controlled, uniform thickness distribution of the two sides of the reinforcement cage can be ensured, and the overall structural quality of the small box girder in the pouring process is improved subsequently.

Description

Technical Field

[0001] This utility model relates to the field of box girder manufacturing technology, and more specifically, to a controller for the protective layer of steel reinforcement in small box girders. Background Technology

[0002] Small box girders are a type of beam used in bridge engineering. They are hollow inside with flanges on both sides of the upper part, resembling a box, hence the name. They are divided into single-box and multi-box types. Small box girders need to be prefabricated in an independent site. Combined with a bridge erecting machine, they can be erected after the lower part of the project is completed, which can accelerate the project progress and save construction time. In the existing technology of small box girder prefabrication construction, after the box girder reinforcement cage is tied by the lifting frame, the bottom web reinforcement is hoisted into the formwork as a whole. The reinforcement cage is deformed, and the protective layer on both sides of the reinforcement cage is uneven, difficult to control and adjust, which affects the quality of the small box girder in the subsequent pouring process. Therefore, this utility model proposes a small box girder reinforcement protective layer controller to solve the above problems. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a small box girder rebar protective layer controller, which has the advantages of protecting the rebar skeleton from deformation and facilitating control of both sides of the rebar skeleton. It solves the problems of existing rebar skeletons being prone to deformation during hoisting into the formwork, and the uneven protective layer on both sides of the rebar skeleton being difficult to control and adjust.

[0005] (II) Technical Solution

[0006] To achieve the aforementioned goal of facilitating the control of the reinforcing steel cage and preventing its deformation, this utility model provides the following technical solution: a controller for the protective layer of reinforcing steel in a small box girder, comprising two steel pipes, each equipped with an auxiliary component and an adjustment component. The auxiliary component includes a locking block at one end of the steel pipe, an mounting component at the other end of the steel pipe, and a hook on the outer peripheral wall of the steel pipe. The adjustment component includes a fixing ring above the mounting component, a locking component directly below the fixing ring, a first fixing frame on the locking component, a second fixing frame on one side of the fixing ring, two hinge rods rotatably connected to the two first fixing frames and the two second fixing frames, and a threaded rod on the fixing ring.

[0007] In an embodiment of this utility model, a handle is fixed to the top of the lead screw, the two hinged rods are rotatably connected at their center, and the lead screw is rotatably connected to the fixed ring through a bearing.

[0008] In an embodiment of this utility model, the two lead screws are respectively threadedly connected to the two mounting parts, and the two locking blocks are respectively inserted into the two locking parts and are in clearance fit with the locking parts.

[0009] In an embodiment of this utility model, a connector is provided on one side of the right-side fixing ring, and a threaded rod is provided on one side of the connector. Nuts are threaded to both ends of the threaded rod. A limiting member is provided on one side of the left-side fixing ring, and limiting holes are provided at both ends of the limiting member.

[0010] In an embodiment of this utility model, a fixing member is fixed on one side of the connector. The fixing member is cylindrical, and the threaded rod is fixed inside the fixing member.

[0011] In an embodiment of this utility model, the front and rear ends of the threaded rod respectively pass through the front and rear limiting holes, and the two nuts are respectively tightly fitted to the front and rear sides of the limiting member.

[0012] In an embodiment of this utility model, the limiting member is U-shaped and the hook is L-shaped.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model is equipped with a structure including steel pipes, hooks, and hinged rods. Two steel pipes are tied to both sides of the reinforcing steel cage with wire, so that the two steel pipes are symmetrically distributed on both sides of the reinforcing steel cage. This makes the reinforcing steel cage less prone to deformation when hoisted into the formwork. At the same time, after the steel pipes are fixed, pushing and pulling the two steel pipes can change the distance between the two steel pipes, which makes it easier to control the thickness of the reinforcing steel cage. This ensures that the thickness distribution on both sides of the reinforcing steel cage is uniform, thereby improving the overall structural quality of the small box girder during the subsequent casting process.

[0015] This invention directly controls the thickness of the protective layer on both sides of the bottom web reinforcement, which affects the strength and durability of the beam structure. The protective layer thickness is uniform on both sides, the operation is simple, it can be reused, and it effectively improves the overall structural quality of the box girder.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This utility model provides an overall structural schematic diagram of its embodiments;

[0019] Figure 2 A schematic diagram of the structure of the adjustment component provided in this embodiment of the utility model;

[0020] Figure 3 Provided for the embodiments of this utility model Figure 2 An enlarged structural diagram of point A in the diagram.

[0021] In the diagram: 10. Steel pipe; 101. Clamping block; 102. Hook; 103. Mounting component; 20. Fixing ring; 201. Clamping component; 202. First fixing frame; 203. Second fixing frame; 204. Hinge rod; 205. Screw rod; 206. Handle; 21. Connecting component; 211. Fixing component; 212. Threaded rod; 213. Nut; 214. Limiting component; 215. Limiting hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-2This utility model provides a technical solution: a controller for the protective layer of steel reinforcement in a small box girder, comprising two steel pipes 10, each of which is provided with an auxiliary component and an adjustment component. The auxiliary component includes a locking block 101 at one end of the steel pipe 10, an mounting component 103 at the other end of the steel pipe 10, and a hook 102 on the outer peripheral wall of the steel pipe 10. The adjustment component includes a fixing ring 20 above the mounting component 103, a locking component 201 directly below the fixing ring 20, a first fixing frame 202 on the locking component 201, a second fixing frame 203 on one side of the fixing ring 20, two hinge rods 204 that are rotatably connected to the two first fixing frames 202 and the two second fixing frames 203, and a screw rod 205 on the fixing ring 20.

[0025] Two locking blocks 101 are inserted into two locking pieces 201 respectively and are fitted with the locking pieces 201 with a gap. When fixing the adjusting component to the steel pipe 10, the locking block 101 at the bottom of the steel pipe 10 is first inserted into the locking piece 201, which can initially fix the steel pipe 10 to the adjusting component. The adjusting component and the steel pipe 10 are designed to be detachable, which makes subsequent turnover more convenient and saves more space.

[0026] Meanwhile, a handle 206 is fixed to the top of the lead screw 205. The lead screw 205 is rotatably connected to the fixed ring 20 through a bearing. The two lead screws 205 are threadedly connected to the two mounting parts 103 respectively. By rotating the lead screw 205 through the handle 206, the adjustment component can be fixedly installed on the mounting part 103. The distance between the two steel pipes 10 can be controlled by adjusting the component, which is convenient for controlling the thickness of the steel reinforcement cage. At the same time, it is convenient to control the thickness of the steel reinforcement cage on both sides, which helps to improve the structural quality of the subsequent small box girder during the pouring process.

[0027] It should be noted that the two hinge rods 204 are rotatably connected at their center, and the distance between the two steel pipes 10 can be adjusted by pushing and pulling the two hinge rods 204 to rotate.

[0028] In this embodiment, a connector 21 is provided on one side of the right fixing ring 20, and a threaded rod 212 is provided on one side of the connector 21. Nuts 213 are threaded to both ends of the threaded rod 212. A limiting member 214 is provided on one side of the left fixing ring 20. Limiting holes 215 are provided at both ends of the limiting member 214. After the distance between the two steel pipes 10 is adjusted, the fixing member 211 and the connector 21 can be limited by rotating the nut 213.

[0029] It is understandable that a fixing member 211 is fixed on one side of the connector 21. The fixing member 211 is cylindrical, and the threaded rod 212 is fixed inside the fixing member 211.

[0030] It should be emphasized that the front and rear ends of the threaded rod 212 pass through the front and rear limiting holes 215 respectively, and the two nuts 213 are tightly fitted with the front and rear sides of the limiting member 214 respectively. The threaded rod 212 can move left and right within the limiting holes 215. When it needs to be fixed, simply rotate the nut 213 to make the nut 213 tightly fit with the limiting member 214.

[0031] Finally, the limiting component 214 is U-shaped, and the hook 102 is L-shaped.

[0032] Specifically, the working principle of this small box girder reinforcement protective layer controller is as follows:

[0033] In use, first, fix the adjusting component to the two steel pipes 10. Specifically, insert the locking blocks 101 at the bottom of the two steel pipes 10 into the two locking pieces 201. Then, rotate the screw rod 205 into the mounting piece 103 to complete the fixing process between the adjusting component and the steel pipes 10. Next, place the controller on one side of the reinforcing steel cage. During this process, make the two steel pipes 10 fit against the steel pipes 10 on one side of the reinforcing steel cage and tie the steel pipes 10 to the reinforcing steel cage with wire. The hook 102 can be hooked onto the reinforcing steel cage and the reinforcing steel beam to prevent the steel pipes 10 from shifting, thus playing an auxiliary positioning role. Then, according to the construction requirements, the two steel pipes 10 can be pushed and pulled to adjust the distance between the two steel pipes 10 to control the thickness of the reinforcing steel cage. The same method can be used to tie the steel pipes 10 to the other side of the reinforcing steel cage to facilitate the control of the thickness on both sides of the reinforcing steel cage to be consistent. This is beneficial to improving the structural strength of the small box girder during the subsequent pouring process. At the same time, the support effect of the steel pipes 10 can prevent the deformation of the reinforcing steel cage when it is hoisted into the formwork, which is beneficial to improving the quality of the small box girder during the pouring process.

[0034] It should be noted that the specific model and specifications of steel pipe 10 and hook 102 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0035] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A controller for the protective layer of steel reinforcement in a small box girder, comprising two steel pipes (10), characterized in that: Auxiliary components are provided on both steel pipes (10), and adjustment components are provided on both steel pipes (10). The auxiliary components include a locking block (101) at one end of the steel pipe (10), an installation part (103) at the other end of the steel pipe (10), and a hook (102) on the outer peripheral wall of the steel pipe (10). The adjustment components include a fixing ring (20) above the installation part (103), a locking part (201) directly below the fixing ring (20), a first fixing frame (202) on the locking part (201), a second fixing frame (203) on one side of the fixing ring (20), two hinge rods (204) that are cross-rotatably connected to the two first fixing frames (202) and the two second fixing frames (203), and a screw rod (205) on the fixing ring (20).

2. A controller for the protective layer of steel reinforcement in a small box girder according to claim 1, characterized in that, A handle (206) is fixed to the top of the lead screw (205), and the two hinge rods (204) are rotatably connected at their center. The lead screw (205) is rotatably connected to the fixed ring (20) through a bearing.

3. A controller for the protective layer of steel reinforcement in a small box girder according to claim 2, characterized in that, The two lead screws (205) are threadedly connected to the two mounting parts (103) respectively, and the two locking blocks (101) are inserted into the two locking parts (201) respectively and are in clearance fit with the locking parts (201).

4. A controller for the protective layer of steel reinforcement in a small box girder according to claim 1, characterized in that, A connector (21) is provided on one side of the right-side fixing ring (20), and a threaded rod (212) is provided on one side of the connector (21). Nuts (213) are threaded to both ends of the threaded rod (212). A limiting member (214) is provided on one side of the left-side fixing ring (20), and limiting holes (215) are provided at both ends of the limiting member (214).

5. A controller for the protective layer of steel reinforcement in a small box girder according to claim 4, characterized in that, A fixing member (211) is fixed on one side of the connector (21), the fixing member (211) is cylindrical, and the threaded rod (212) is fixed inside the fixing member (211).

6. A controller for the protective layer of steel reinforcement in a small box girder according to claim 5, characterized in that, The front and rear ends of the threaded rod (212) pass through the front and rear limiting holes (215) respectively, and the two nuts (213) are tightly fitted to the front and rear sides of the limiting member (214) respectively.

7. A controller for the protective layer of steel reinforcement in a small box girder according to claim 6, characterized in that, The limiting member (214) is U-shaped, and the hook (102) is L-shaped.

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