Split bolt structure with reinforcing steel bar positioning and waterproof functions and shear wall formwork

Abstract

The utility model discloses a split bolt structure with reinforcing steel bar positioning and waterproof functions and a shear wall template. The split bolt structure comprises a first connecting rod, a positioning nut, a second connecting rod, a positioning cushion block and a reinforcing mechanism, a through hole matched with the second positioning threaded rod is formed in the external formwork, the second connecting rod penetrates through the through hole, the positioning cushion block and the reinforcing mechanism are located on the two sides of the external formwork, and the reinforcing mechanism is located on the outer side of the external formwork; under the action of the reinforcing structure, the positioning nut, the positioning cushion block, the external formwork and the reinforcing structure are attached to one another; u-shaped limiting grooves are fixedly formed in the positioning nuts, a steel reinforcement framework is arranged between the outer formworks on the two sides, and the sizes and the arrangement positions of the U-shaped limiting grooves are matched with the sizes and the arrangement positions of horizontal steel bars on the outermost portions of the two sides of the steel reinforcement framework; and the U-shaped limiting groove of the split bolt structure is clamped on the outermost horizontal steel bar. The thickness of the steel bar protection layer and the thickness of the shear wall are controlled; the stability of the steel reinforcement framework is improved, and the influence on the steel reinforcements in the concrete pouring process is reduced.

Description

Technical Field

[0001] This utility model relates to the field of construction tools technology, specifically to a tie bolt structure and shear wall formwork with rebar positioning and waterproofing functions. Background Technology

[0002] In the construction of basement shear walls or integrated utility tunnels, construction workers typically tie tie bars between the reinforcing bars of the shear wall and install reinforcement cover spacers and supports to position the reinforcing bars or control the wall thickness and cover thickness. However, practice shows that tie bars, reinforcement cover spacers, and supports, due to structural limitations, generally have the following problems: Firstly, improper cutting and installation of tie bars can lead to the reinforcement cage being too wide or too narrow, resulting in the shear wall reinforcement cover not meeting design requirements. Improper installation of spacers and supports can also cause serious rebar displacement during concrete pouring. Secondly, installing tie bars, tie bolts, and spacers requires repeated steps and multiple overlapping processes, wasting a significant amount of manpower and resources.

[0003] Therefore, it is necessary to invent a new type of shear wall reinforcement positioning tie bolt structure to solve the problems of inaccurate reinforcement positioning, unsatisfactory positioning effect of reinforcement protective layer spacers and support rods, and lack of waterproof function. Utility Model Content

[0004] To address the aforementioned deficiencies in existing technologies, a tie bolt structure and shear wall formwork with rebar positioning and waterproofing functions are provided, enabling control over the thickness of the rebar protective layer and the shear wall thickness; and improving the stability of the rebar cage while reducing the impact on the rebar during concrete pouring.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A tie rod structure with rebar positioning and waterproofing functions is characterized by: a first connecting rod located in the middle, a positioning nut connected at one end to both ends of the first connecting rod, a second connecting rod connected at one end to the other end of the positioning nut, a positioning pad sleeved on the second connecting rod, and a reinforcing mechanism connected to the second connecting rod; a through hole matching the second positioning threaded rod is provided on the outer template, the second connecting rod passes through the through hole, the positioning pad and the reinforcing mechanism are located on both sides of the outer template, and the reinforcing mechanism is located on the outside of the outer template; under the action of the reinforcing structure, the positioning nut, the positioning pad, the outer template, and the reinforcing mechanism fit together;

[0007] A U-shaped limiting groove is fixed on the positioning nut, and a steel reinforcement cage is provided between the outer templates on both sides. The size and setting position of the U-shaped limiting groove are matched with the size and setting position of the outermost horizontal steel bars on both sides of the steel reinforcement cage; the U-shaped limiting groove of the tie bolt structure is stuck on the outermost horizontal steel bar.

[0008] According to the above technical solution, a water-stop ring is provided on the first connecting rod.

[0009] According to the above technical solution, the water-stop ring is welded and fixed to the first connecting rod; or, it is fixed to the first connecting rod by a limiting pin; or, it is fixed to the first connecting rod by setting limiting nuts at both ends of the water-stop ring.

[0010] According to the above technical solution, internal threads are provided at both ends of the positioning nut, and external threads are provided at the ends of the first connecting rod and the second connecting rod near the positioning nut; the first connecting rod and the positioning nut, and the second connecting rod and the positioning thread are all fixedly connected by internal and external threads.

[0011] According to the above technical solution, the cross-sectional area of ​​the positioning pad gradually increases, and the end with the larger cross-sectional area is closer to the reinforcement mechanism.

[0012] According to the above technical solution, the positioning pad adopts a conical or frustum-shaped structure; the positioning pad is made of concrete or plastic conical pad.

[0013] According to the above technical solution, the reinforcement mechanism includes a butterfly clip and a tightening buckle. The tightening buckle has a second internal thread inside, and the outer end of the second connecting rod has a second external thread. The butterfly clip is sleeved on the second connecting rod, and the tightening buckle is tightened on the second connecting rod, pressing the butterfly clip against the outer side of the outer template.

[0014] According to the above technical solution, the U-shaped limiting groove is arranged horizontally, and the U-shaped limiting groove and the positioning nut are fixedly connected by double-sided full welding, and are arranged perpendicular to the positioning nut.

[0015] Shear wall formwork, characterized in that: it includes a steel reinforcement cage and formwork on both sides of the steel reinforcement cage, and also includes a tie bolt structure with steel reinforcement positioning and waterproofing functions as described above; the middle part of the tie bolt structure is fixed to the outermost horizontal steel reinforcement on both sides of the steel reinforcement cage through a U-shaped limiting groove, and multiple sets of through holes are provided at intervals on both sides of the formwork, through which the tie bolt structure passes and is installed on the formwork.

[0016] According to the above technical solution, several sets of tie bolt structures are arranged in an array on the template along the horizontal and vertical directions, and the spacing between two adjacent tie bolt structures is 400mm~500mm.

[0017] This utility model has the following beneficial effects:

[0018] 1. By controlling the thickness of the positioning pad and the spacing of the two U-shaped limiting grooves, the thickness of the concrete cover and the shear wall can be controlled. In addition, by limiting the horizontal steel bars through the U-shaped limiting grooves, the steel bar cage can be corrected, thereby improving the stability of the steel bar cage and reducing the impact on the steel bars during concrete pouring.

[0019] 2. A water-stop ring is provided on the first connecting rod; this enables the tie bolts to be waterproof and improves the utilization efficiency and practicality of the structure.

[0020] 3. The cross-sectional area of ​​the positioning pads gradually increases, with the larger cross-sectional area end closer to the reinforcement mechanism. Using this structure, after the shear wall is poured, the formwork can be dismantled, and the positioning pads can be removed and reused in subsequent shear wall construction, thus saving materials and reducing costs.

[0021] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0023] Figure 1 This is a structural schematic diagram of an embodiment provided by this utility model;

[0024] Figure 2 This is a cross-sectional view of an embodiment provided by this utility model;

[0025] Figure 3 This is a bottom view of the positioning nut provided in the embodiment of this utility model;

[0026] Figure 4 This is a front view of the positioning nut provided in an embodiment of this utility model;

[0027] Figure 5 This is a side view of the positioning nut provided in an embodiment of this utility model;

[0028] Figure 6 This is a schematic diagram of the positioning pad block provided in an embodiment of the present utility model;

[0029] Figure 7 This is an installation diagram of an embodiment provided by this utility model;

[0030] In the diagram, 1. First connecting rod; 2. Positioning nut; 3. Second connecting rod; 4. Positioning pad; 5. Reinforcing mechanism; 5-1. Butterfly clip; 5-2. Tightening buckle; 6. U-shaped limiting groove; 7. Reinforcing steel skeleton; 7-1. Horizontal reinforcing steel; 7-2. Vertical reinforcing steel; 8. Water-stop ring; 9. External formwork. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-5 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0032] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] Reference Figures 1-5 As shown, the present invention provides a tie bolt structure with rebar positioning and waterproofing functions.

[0035] Example 1

[0036] The system includes a first connecting rod 1 located in the middle, a positioning nut 2 with one end connected to both ends of the first connecting rod, a second connecting rod 3 with one end connected to the other end of the positioning nut, a positioning pad 4 sleeved on the second connecting rod, and a reinforcing mechanism 5 connected to the second connecting rod. The outer template 9 has through holes that match those on the second positioning threaded rod, through which the second connecting rod passes. The positioning pad and the reinforcing mechanism are located on both sides of the outer template, with the reinforcing mechanism located on the outside of the outer template. Under the action of the reinforcing structure, the positioning nut, the positioning pad, the outer template, and the reinforcing mechanism fit together.

[0037] A U-shaped limiting groove 6 is fixed on the positioning nut, and a steel reinforcement cage 7 is provided between the outer templates on both sides. The size and setting position of the U-shaped limiting groove are matched with the size and setting position of the outermost horizontal steel bars 7-1 on both sides of the steel reinforcement cage. The U-shaped limiting groove of the tie bolt structure is stuck on the outermost horizontal steel bar.

[0038] In this application, the U-shaped limiting grooves at both ends of the same tie bolt are used to limit and fix the formwork, reinforcing cage, and tie bolt on both sides of the shear wall. In the integrated structure formed above, the spacing between the outermost horizontal reinforcing bars of the formwork and the reinforcing cage is "the thickness of the positioning pad + the spacing between the outer wall of the U-shaped limiting groove and the end of the positioning nut"; therefore, the overall thickness of the shear wall can be controlled by only controlling the fixed position of the two U-shaped limiting grooves on the positioning nut and the thickness of the two positioning pads. In addition, the thickness of the protective layer of the reinforcing cage on both sides of the shear wall can be controlled separately by controlling the thickness of the positioning pads; if the outermost reinforcing cage is a horizontal reinforcing bar, the thickness of the protective layer of the reinforcing cage is "the thickness of the positioning pad"; if the outermost reinforcing cage is a vertical reinforcing bar 7-2, the thickness of the protective layer of the reinforcing cage is "the thickness of the positioning pad - the diameter of the vertical reinforcing bar".

[0039] In summary, this application controls the thickness of the reinforcing bar protective layer and the shear wall thickness by controlling the thickness of the positioning pad and the spacing of the two U-shaped limiting grooves. In addition, by limiting the horizontal reinforcing bars through the U-shaped limiting grooves, the purpose of correcting the reinforcing bar cage is achieved, thereby improving the stability of the reinforcing bar cage and reducing the impact on the reinforcing bars during concrete pouring.

[0040] Example 2

[0041] The structure and principle of Embodiment 2 are similar to those of Embodiment 1, except that: in order to improve the waterproofness of the shear wall after the tie bolts are installed, a water-stop ring 8 is provided on the first connecting rod; so that the tie bolts have a waterproof function and achieve the purpose of improving the utilization efficiency and practicality of the structure.

[0042] In Embodiment 2, the water-stop ring is welded and fixed to the first connecting rod; or, it is fixed to the first connecting rod by a limiting pin; or, it is fixed to the first connecting rod by setting limiting nuts at both ends of the water-stop ring. Welding the water-stop ring to the first connecting rod better ensures the water-stopping performance of the tie bolts.

[0043] In embodiments 1-2, a preferred connection method between the positioning nut and the first connecting rod and the second connecting rod is given, specifically: internal threads are provided at both ends of the positioning nut, and external threads are provided at the ends of the first connecting rod and the second connecting rod near the positioning nut; the first connecting rod and the positioning nut, and the second connecting rod and the positioning thread are all fixedly connected by internal and external threads.

[0044] Example 3

[0045] The structure and principle of Example 3 are similar to those of Examples 1 and 2, except that, to achieve the recycling of the positioning pads, the cross-sectional area of ​​the positioning pads gradually increases, with the larger cross-sectional area end closer to the reinforcement mechanism. Using this structure, after the shear wall is poured, the formwork can be disassembled, and the positioning pads can be removed and recycled during subsequent shear wall construction, achieving the goal of saving materials and reducing costs. Specifically, the positioning pads adopt conical or frustum-shaped structures, such as cones, frustums, polygonal pyramids, and truncated pyramids; the positioning pads are made of plastic conical rubber pads.

[0046] If the positioning pads do not need to be reused, concrete pads should be used.

[0047] In embodiments 1-3, the reinforcement mechanism includes a butterfly clip 5-1 and a tightening buckle 5-2. The tightening buckle has a second internal thread inside, and the outer end of the second connecting rod has a second external thread. The butterfly clip is sleeved on the second connecting rod, and the tightening buckle is tightened on the second connecting rod, pressing the butterfly clip against the outer side of the outer template.

[0048] In Examples 1-3, the U-shaped limiting groove is arranged horizontally, and the U-shaped limiting groove and the positioning nut are fixedly connected by double-sided full welding and are arranged perpendicular to the positioning nut.

[0049] This utility model also provides a shear wall formwork, including a steel reinforcement cage and formwork on both sides of the steel reinforcement cage, and also includes a tie bolt structure with steel reinforcement positioning and waterproofing functions as described above; the middle part of the tie bolt structure is fixed to the outermost horizontal steel reinforcement on both sides of the steel reinforcement cage through a U-shaped limiting groove, and multiple sets of through holes are provided at intervals on both sides of the formwork, through which the tie bolt structure passes and is installed on the formwork.

[0050] Several sets of tie bolt structures are arranged in an array on the template along the horizontal and vertical directions, with a spacing of 400mm to 500mm between two adjacent tie bolt structures.

[0051] The construction process of this utility model is as follows:

[0052] Step S1: Weld the U-shaped limiting groove onto the positioning nut and install the positioning nut at the end of the first connecting rod; then, clamp the U-shaped limiting groove onto the horizontal reinforcement of the shear wall to prevent the reinforcement cage from shifting and to limit the width of the reinforcement cage.

[0053] Step S2: Connect the second connecting rod to the positioning nut, and then pass the second connecting rod of the tie bolt structure through the positioning pad.

[0054] Step S3: A through hole matching the second connecting rod is provided on the shear wall formwork, and the through hole of the shear wall concrete formwork is fitted onto the second connecting rod; the reinforcement mechanism is installed on the second connecting rod to reinforce the shear wall concrete formwork.

[0055] Step S4: Pour the shear wall panel concrete, remove the side wall formwork, reinforcement mechanism, second connecting rod and positioning pad, and seal the bolt holes with waterproof coating and waterproof mortar.

[0056] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A structure of a pair of bolts with a function of positioning a reinforcing bar and waterproofing, characterized by: It includes a first connecting rod located in the middle, a positioning nut connected to both ends of the first connecting rod, a second connecting rod connected to the other end of the positioning nut, a positioning pad sleeved on the second connecting rod, and a reinforcing mechanism connected to the second connecting rod; the outer template has a through hole that matches the second positioning threaded rod, the second connecting rod passes through the through hole, the positioning pad and the reinforcing mechanism are located on both sides of the outer template, and the reinforcing mechanism is located on the outside of the outer template; under the action of the reinforcing structure, the positioning nut, the positioning pad, the outer template, and the reinforcing mechanism fit together; A U-shaped limiting groove is fixed on the positioning nut, and a steel reinforcement cage is provided between the outer templates on both sides. The size and setting position of the U-shaped limiting groove are matched with the size and setting position of the outermost horizontal steel bars on both sides of the steel reinforcement cage; the U-shaped limiting groove of the tie bolt structure is stuck on the outermost horizontal steel bar.

2. The structure of the anchor bolt with the function of reinforcing bar positioning and waterproofing according to claim 1, characterized in that: A water-stop ring is provided on the first connecting rod.

3. The tie bolt structure with reinforcement positioning and waterproofing functions according to claim 2, characterized in that: The water-stop ring is welded and fixed to the first connecting rod; or, it is fixed to the first connecting rod by a limiting pin; or, it is fixed to the first connecting rod by setting limiting nuts at both ends of the water-stop ring.

4. The structure of the anchor bolt with the function of reinforcing bar positioning and waterproofing according to claim 1, characterized in that: Both ends of the positioning nut have internal threads, and the ends of the first connecting rod and the second connecting rod near the positioning nut have external threads; the first connecting rod and the positioning nut, and the second connecting rod and the positioning thread are all fixedly connected by internal and external threads.

5. The tie bolt structure with reinforcement positioning and waterproofing functions according to claim 1, characterized in that: The cross-sectional area of ​​the positioning pad gradually increases, and the end with the larger cross-sectional area is closer to the reinforcement mechanism.

6. The tie bolt structure with reinforcement positioning and waterproofing functions according to claim 5, characterized in that: The positioning pads adopt a conical or frustum-shaped structure; the positioning pads are made of concrete or plastic conical pads.

7. The tie bolt structure with reinforcement positioning and waterproofing functions according to claim 1, characterized in that: The reinforcement mechanism includes a butterfly clip and a tightening buckle. The tightening buckle has a second internal thread, and the outer end of the second connecting rod has a second external thread. The butterfly clip is sleeved on the second connecting rod, and the tightening buckle is tightened on the second connecting rod, pressing the butterfly clip against the outer side of the outer template.

8. The structure of the anchor bolt with the function of reinforcing bar positioning and waterproofing according to claim 1, characterized in that: The U-shaped limiting groove is arranged horizontally, and the U-shaped limiting groove and the positioning nut are fixedly connected by double-sided full welding, and are arranged perpendicular to the positioning nut.

9. A formwork for shear walls, characterized in that: It includes a steel reinforcement cage and templates on both sides of the steel reinforcement cage, and also includes a tie bolt structure with steel reinforcement positioning and waterproofing functions as described in any one of claims 1-8; the middle part of the tie bolt structure is fixed to the outermost horizontal steel reinforcement on both sides of the steel reinforcement cage through a U-shaped limiting groove, and multiple sets of through holes are provided at intervals on both sides of the template, through which the tie bolt structure passes and is installed on the template.

10. The shear wall form of claim 9, wherein: Several sets of tie bolt structures are arranged in an array on the template along the horizontal and vertical directions, with a spacing of 400mm to 500mm between two adjacent tie bolt structures.

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