Reusable water stop screw

Abstract

The utility model discloses a reusable water stop screw rod, which is characterized in that the water stop screw rod is oppositely pulled and reinforced on the back surfaces of two adjacent templates, a clamping force is applied through a reinforcing nut, and the pressure contact area between the water stop screw rod and the templates is increased through an E-shaped clamp and a steel pipe; the water stop screw further comprises a two-way nut, a plastic cone nut, a plurality of screws and a plurality of screw sleeves, wherein the two-way nut and the plastic cone nut are arranged in the formwork. Threaded holes are formed in the two axial end faces of the two-way nut, the interiors of the threaded holes are coaxially connected with screws in a threaded mode, and the outer wall, outside the threaded holes, of the two-way nut is connected with one end of a screw sleeve in a sleeving mode. A plastic cone nut is connected with the other end of the screw sleeve in a threaded sleeving mode, and one axial end face of the plastic cone nut is fixedly connected to the inner wall of the formwork in a sealed jacking mode. Preferably, an X-shaped water stop piece is fixedly arranged on the circumferential outer wall of the two-way nut in the radial direction. The water stop screw can be repeatedly used, the safety risk can be effectively reduced, repeated utilization of materials is achieved, and resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of underground construction, in particular to a reusable water-stopping screw. Background Art

[0002] At present, the common waterstop screws and three-stage tension waterstop screws are commonly used on the market. The common waterstop screw is a one-stage structure, with a waterstop plate welded in the middle of the screw. It is not necessary to install a matching sleeve during installation. When removing the mold, the screws at both ends of the leakage are directly cut off, and it is necessary to chisel deep to the thickness of the protective layer. Finally, mortar with anti-seepage and anti-cracking admixtures is used to compact and smooth the structure. The use of common waterstop screws has certain risks during the cutting process because the leaking part needs to be cut off, and the labor cost is high. The screws cannot be circulated for a second time after cutting, resulting in serious waste of materials.

[0003] The three-stage waterstop screw is composed of an outer rod, an inner rod and a connecting nut. There is also a waterstop welded in the middle to prevent water penetration. Compared with conventional waterstop screws, the exposed screws at both ends can be directly removed after construction is completed, so that the screws at both ends can be reused. Because the waterstop needs to be centered in the middle of the screw, the three-stage waterstop screw needs to be processed and configured according to the thickness of the wall, which greatly reduces its versatility. Similar to the construction method of ordinary waterstop screws, there is no need to install a matching sleeve during installation. When removing the mold, the leaking screws at both ends can be directly rotated out. The hole position is also compacted and smoothed with mortar with anti-seepage and anti-cracking admixtures. The three-stage waterstop screw requires some screws to be retained inside the structure, which also results in material waste.

[0004] Both the common water-stop screw and the three-stage water-stop screw will cause part of the screw to remain in the structure, resulting in material waste, which directly affects the construction cost. In addition, the removal of the common water-stop screw is also dangerous. The three-stage water-stop screw needs to be configured according to the wall thickness and has poor versatility. Therefore, in order to further reduce construction costs, improve construction safety, and at the same time play a good water-stopping role, realize the reuse of water-stop screws, avoid material waste, and save resources, a reusable water-stop screw is needed.

[0005] In summary, how to design a reusable water-stop screw to solve the above problems has become a technical problem that needs to be solved urgently by people in this field. Utility Model Content

[0006] The purpose of the utility model is to solve the deficiencies of the prior art and to provide a reusable water-stop screw, which can be reused to effectively reduce safety risks, realize the repeated use of materials, and save resources.

[0007] A reusable water-stop screw rod is used for pulling and reinforcing on the back surfaces of two adjacent templates, and a clamping force is applied through a reinforcing nut, and the pressure contact area between the water-stop screw rod and the template is increased through a mountain-shaped clamp and a steel pipe;

[0008] The water-stop screw also includes a double-pass nut, a plastic cone nut, a plurality of screws and a plurality of screw sleeves arranged inside the template;

[0009] Threaded holes are provided on the two axial end faces of the double-pass nut, the inside of the threaded holes are coaxially threadedly connected to the screw rod, and one end of the screw rod sleeve is sleeved on the outer wall of the double-pass nut outside the threaded hole;

[0010] The plastic cone nut is threadedly sleeved to connect the other end of the screw rod sleeve, and an axial end face sealing top support of the plastic cone nut is fixedly connected to the inner wall of the template.

[0011] Preferably, an X-shaped water stop plate is radially fixed on the circumferential outer wall of the double-pass nut.

[0012] The advantages and technical effects of the utility model are:

[0013] The utility model provides a reusable water-stop screw with a relatively simple structure, easy installation and high construction efficiency. The screw end does not need to be cut during the disassembly process, and the screw can be removed by rotating it from the double-pass nut. Compared with the three-stage water-stop screw, it does not need to be customized according to the thickness of the structure, and has stronger applicability. At the same time, the traditional water-stop plate is optimized to an X-shaped water-stop nut, which has a better water-stop effect. In addition, after the screw is removed, only the double-pass nut with the X-shaped water-stop plate is retained in the wall, which further reduces material waste and construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the connection structure of the utility model;

[0015] In the figure: 1-screw; 2-reinforcement nut; 3-mountain-shaped card; 4-steel pipe; 5-template; 6-X-type water stop plate; 7-double-pass nut; 8-screw casing; 9-plastic cone nut. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0018] A reusable water-stop screw rod, which is pulled and reinforced on the back surfaces of two adjacent templates, and a clamping force is applied through a reinforcing nut 2, and the pressure contact area between the water-stop screw rod and the template 5 is increased through a mountain-shaped clamp 3 and a steel pipe 4;

[0019] The water-stop screw also includes a double-pass nut 7, a plastic cone nut 9, and a plurality of screws 1 and a plurality of screw sleeves 8 arranged inside the template;

[0020] Threaded holes are provided on the two axial end faces of the double-pass nut, the inside of the threaded holes are coaxially threadedly connected to the screw rod, and one end of the screw rod sleeve is sleeved on the outer wall of the double-pass nut outside the threaded hole;

[0021] The plastic cone nut is threadedly sleeved to connect the other end of the screw rod sleeve, and an axial end face sealing top support of the plastic cone nut is fixedly connected to the inner wall of the template.

[0022] Preferably, an X-shaped water stop plate 6 is radially fixed on the circumferential outer wall of the double-pass nut.

[0023] In order to more clearly illustrate the specific implementation of the utility model, an embodiment is provided below:

[0024] The utility model is a reusable water-stop screw, and its installation sequence is:

[0025] 1. Initially set up the formwork, locate the distance between the two formworks and the centering position;

[0026] 2. Connect the inner support structure between the two templates, including the double-pass nut, screw sleeve and plastic cone nut extending from the middle to both ends, so that one end of the screw sleeve is fixed on the double-pass nut and sealed with glue, and the plastic cone nut is twisted on the end of the screw sleeve to tighten the overall inner support structure, and finally glue is sealed at both ends of the plastic cone nut;

[0027] 3. Insert the screw from both ends of the template respectively. The screw first penetrates the template and the plastic cone nut, and then rotates the screw until it is coaxially engaged with the threaded hole of the double-pass nut; finally, install the steel pipe, mountain-shaped clamp and reinforcement nut in sequence.

[0028] The utility model provides a reusable water-stop screw, and the disassembly sequence thereof is as follows:

[0029] 1. First remove the reinforcement nut, mountain clamp and steel pipe in turn; then unscrew the screw from the double-pass nut;

[0030] 2. After pouring is completed, remove the formwork;

[0031] 3. Grouting is performed on the poured wall to seal the screw casing. The slurry can be mortar with anti-seepage and anti-cracking admixtures.

[0032] The disassembled water-stop screw parts are collected together for overall inspection and cleaning to facilitate turnover and next use.

[0033] Finally, all the parts not fully described in the present invention adopt mature products and mature technical means in the prior art.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in the embodiments or examples of the utility model.

[0035] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A reusable water-stop screw rod, which is pulled and reinforced on the back surfaces of two adjacent templates, and a clamping force is applied by a reinforcing nut, and the pressure contact area between the water-stop screw rod and the template is increased by a mountain-shaped clamp and a steel pipe; Features: The water-stop screw also includes a double-pass nut, a plastic cone nut, a plurality of screws and a plurality of screw sleeves arranged inside the template; The two axial end faces of the double-pass nut are provided with threaded holes, the interior of the threaded holes are coaxially threadedly connected to the screw rod, and one end of the screw rod sleeve is sleeved on the outer wall of the double-pass nut outside the threaded hole; The plastic cone nut is threadedly sleeved and connected to the other end of the screw sleeve, and an axial end face sealing support of the plastic cone nut is fixedly connected to the inner wall of the template.

2. A reusable water-stop screw according to claim 1, characterized in that: An X-shaped water stop plate is radially fixed on the circumferential outer wall of the double-pass nut.

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