Special water stop screw device for radiation-proof concrete wall

Abstract

A water stop screw device special for a radiation protection concrete wall comprises an opposite-pull screw assembly and a connecting mechanism, the opposite-pull screw assembly (1) comprises an opposite-pull screw (11), a first fastening nut (12), an E-shaped clamp (13) and a water stop steel plate (15), a first thread (14) is arranged at one end of the opposite-pull screw, the E-shaped clamp and the first fastening nut are sequentially screwed into the opposite-pull screw from the end, provided with the first thread, of the opposite-pull screw, and the water stop steel plate (15) is arranged on the opposite-pull screw. The water stop steel plate is fixed to the end, away from the first thread, of the opposite-pull screw. The connecting mechanism (2) is arranged in an isosceles triangle shape, the two waists of the isosceles triangle are a V-shaped connecting supporting rod (23), the bottom edge of the isosceles triangle is a connecting steel plate (21) and an anti-radiation plate (22) which have the same plane area and are stacked together, and the two ends of the connecting mechanism are welded to the ends, without threads I, of the opposite-pull screws respectively. The split screw hole anti-radiation device can prevent radiation leakage and water leakage generated in the split screw hole in the construction of mass concrete with anti-radiation requirements such as a linear accelerator machine room and the like.

Description

Technical Field

[0001] The utility model relates to building construction equipment, in particular to a special water-stopping screw device for fixing a radiation-proof concrete wall formwork. Background Art

[0002] In the construction of hospital linear accelerators and civil air defense projects, in order to reduce the harm of radiation to the human body, the ceiling and wall panels of the linear accelerator room are ultra-thick and large-volume concrete structures. The construction process is complicated, and special construction technology plans to prevent radiation leakage must be prepared in advance. Ordinary tension screws are single-through structures when used, which are prone to through cracks, causing radiation leakage and harm to the human body, and cannot meet the design requirements.

[0003] A Chinese patent document with the publication number CN201475541 U (patent number 2009202345970, published on August 29, 2017) discloses a formwork tie rod specifically for ultra-thick concrete walls. Although the formwork tie rod can solve the problem of linear through cracks, the welding process is demanding in the early production process, the man-hours are long, and the cost is high. Large-area application increases the project cost and seriously delays the construction period. The tie screw device has the following three shortcomings: 1. The early production process of the tie screw device is relatively complicated, the processing quality requirements are high, the man-hours are long, and the cost is high; 2. The tie screws of each section of the tie screw device are eccentrically stressed. When the tie screws are subjected to a large external force, it is very likely to cause deformation or cracking damage at the connection between the sections; 3. The tie screw device does not use a dedicated radiation protection plate. During use, radiation may still leak from the through cracks generated by it, and the radiation protection capability is not high. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a tension screw device which can prevent the generation of through cracks and radiation leakage in the construction of large-volume concrete with radiation protection requirements such as a linear accelerator room.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a special water-stop screw device for radiation-proof concrete wall, including a tension screw assembly and a connecting mechanism, the tension screw assembly includes a tension screw, a fastening nut, a mountain-shaped clamp, and a water-stop steel plate, one end of the tension screw is provided with a threaded tooth, the mountain-shaped clamp and the fastening nut are screwed into the end of the tension screw with the threaded tooth in sequence, and the water-stop steel plate is fixed to the end of the tension screw away from the threaded tooth; the connecting mechanism is arranged in an isosceles triangle, the two waists of the isosceles triangle are a V-shaped connecting support rod, the bottom side is a connecting steel plate and a radiation-proof plate with equal plane area stacked together, A hole is respectively opened in the middle of the outer edge of a group of opposite sides of the connecting steel plate and the radiation protection plate, and the distance between the center of the hole and the outer edge is not less than the radius of the hole plus 5mm; the end of the V-shaped connecting support rod away from the base of the isosceles triangle is welded to the end of a tension screw without a thread, and its two ends close to the base of the isosceles triangle are made into straight screws, and the straight screw is provided with a second thread; the two straight screws respectively pass through the holes on the radiation protection plate and the connecting steel plate in turn, and then are screwed into a second fastening nut matching the second thread; the center of the plane of the connecting steel plate away from the radiation protection plate is welded to the end of another tension screw without a thread.

[0006] Preferably, the connecting steel plate is a cube with a plane size of not less than 80mm×80mm and a thickness of not less than 5mm.

[0007] Preferably, the size of the radiation protection plate is not less than 80mm×80mm in plane and not less than 10mm in thickness.

[0008] Preferably, the plane of the connecting steel plates is circular.

[0009] Preferably, the plane of the radiation protection plate is circular.

[0010] The utility model adopts a special water-stop screw technology for radiation-proof concrete walls, which has very outstanding substantial advantages: (1) The special water-stop screw device does not require structural reprocessing of the traditional water-stop screw, and the production cost is not high; (2) The rods of the device are evenly and reasonably stressed, and even if the tensioning screws are subjected to a large external force, they are not prone to deformation or cracking damage, thereby ensuring the rigidity, strength and stability of the template installation and the construction quality of the concrete structure; (3) The connection mechanism of this technology is very convenient and quick to manufacture and install, and can be directly carried out on site, greatly improving work efficiency; (4) Since the tensioning screw device adopts a professional radiation-proof plate, it can prevent radiation leakage from the holes of the tensioning screws, and has high practical performance.

[0011] The utility model has ingenious conception, simple structure, convenient and quick installation, and can be operated on site, which is safe and reliable, improves work efficiency, and can be widely used in various construction activities with radiation protection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0013] Figure 1 It is a front view of a main embodiment of the utility model of a special water-stop screw device for radiation-proof concrete wall.

[0014] Figure 2 This is a large-scale drawing of the connection mechanism of the special water-stop screw device for radiation-proof concrete walls of the utility model.

[0015] In the figure: 1-tension screw assembly, 2-connecting mechanism, 11-tension screw, 12-fastening nut one, 13-mountain-shaped clamp, 14-screw thread one, 15-waterstop steel plate, 21-connecting steel plate, 22-radiation protection plate, 23-V-shaped connecting support rod, 231-straight screw, 2311-screw thread two, 24-fastening nut two. DETAILED DESCRIPTION

[0016] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on 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.

[0017] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model should be understood according to the specific circumstances.

[0018] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] like Figure 1 , Figure 2The utility model shows a special water-stop screw device for radiation-proof concrete wall, including a tension screw assembly and a connecting mechanism. The tension screw assembly 1 includes a tension screw 11, a fastening nut 12, a mountain-shaped clamp 13, and a water-stop steel plate 15. One end of the tension screw 11 is provided with a thread 14, and the mountain-shaped clamp 13 and the fastening nut 12 are screwed into the end of the tension screw 11 with the thread 14 in sequence. The water-stop steel plate 15 is fixed to the end of the tension screw 11 away from the thread 14; the connecting mechanism 2 is arranged in an isosceles triangle, and the two waists of the isosceles triangle are a V-shaped connecting support rod 23, and the bottom side is a connecting steel plate 21 and a radiation-proof plate 22 with equal plane area stacked together. A hole 211 is respectively provided in the middle of the outer edge of a group of opposite sides of the plate 22, and the distance between the center of the hole 211 and the outer edge is not less than the radius of the hole plus 5mm; the end of the V-shaped connecting support rod 23 away from the base of the isosceles triangle is welded to the end of a tension screw 11 without a thread, and its two ends close to the base of the isosceles triangle are made into straight screws 231, and the straight screw 231 is provided with a second thread 2311; the two straight screws 231 are respectively passed through the holes 211 on the radiation protection plate 22 and the connecting steel plate 21 in turn, and then screwed into the second fastening nut 24 matching the second thread 2311; the center of the plane of the connecting steel plate 21 away from the radiation protection plate 22 is welded to the end of another tension screw 11 without a thread.

[0020] like Figure 2 As shown, the connecting steel plate 21 is a cube with a plane size of not less than 80mm×80mm and a thickness of not less than 5mm; the radiation protection plate 22 is a cube with a plane size of not less than 80mm×80mm and a thickness of not less than 10mm.

[0021] like Figure 2 As shown, the plane of the connecting steel plate 21 is circular; the plane of the radiation protection plate 22 is circular.

[0022] The scope of protection of the utility model is not limited by this. According to the content of this specification, many modifications and changes can be made. This specification selects and describes these embodiments in detail in order to better explain the principle and practical application of the utility model, so that technicians in the relevant technical field can understand and use the utility model well. Therefore: All equivalent changes made according to the structure, shape, and principle of the utility model should be included in the scope of protection of the utility model.

Claims

1. A special water-stop screw device for radiation-proof concrete wall, comprising a tension screw assembly and a connecting mechanism, characterized in that: The tension screw assembly (1) comprises a tension screw (11), a fastening nut (12), a mountain-shaped clamp (13), and a water-stop steel plate (15). One end of the tension screw (11) is provided with a thread (14). The mountain-shaped clamp (13) and the fastening nut (12) are screwed into the tension screw (11) from the end with the thread (14) in sequence. The water-stop steel plate (15) is fixed to the end of the tension screw (11) away from the thread (14). The connecting mechanism (2) is arranged in an isosceles triangle. The two waists of the isosceles triangle are a V-shaped connecting support rod (23). The bottom side is a connecting steel plate (21) and a radiation protection plate (22) stacked together with equal plane areas. A plurality of connecting steel plates (21) and a plurality of radiation protection plates (22) are respectively provided in the middle of the outer edges of a group of opposite sides of the stacked connecting steel plates (21) and the radiation protection plates (22). A hole (211), the distance between the center of the hole (211) and the outer edge is not less than the radius of the hole plus 5 mm; the end of the V-shaped connecting rod (23) away from the base of the isosceles triangle is welded to an end of a tension screw (11) without a thread, and its two ends close to the base of the isosceles triangle are made into straight screws (231), and the straight screw (231) is provided with a second thread (2311); the two straight screws (231) are respectively passed through the holes (211) on the radiation protection plate (22) and the connecting steel plate (21) in turn, and then screwed into a second fastening nut (24) matching the second thread (2311); the center of the plane of the connecting steel plate (21) away from the radiation protection plate (22) is welded to an end of another tension screw (11) without a thread.

2. The special water-stop screw device for radiation-proof concrete wall according to claim 1 is characterized in that: The connecting steel plate (21) has a size of a cube not less than 80 mm×80 mm in plane and a thickness of not less than 5 mm.

3. The special water-stop screw device for radiation-proof concrete wall according to claim 1 is characterized in that: The size of the radiation protection plate (22) is not less than 80 mm×80 mm in plane and not less than 10 mm in thickness.

4. The special water-stop screw device for radiation-proof concrete wall according to claim 1 or 2, characterized in that: The plane of the connecting steel plate (21) is circular.

5. The special water-stop screw device for radiation-proof concrete wall according to claim 1 or 3, characterized in that: The plane of the radiation protection plate (22) is circular.

Images