Horizontal water stop copper sheet welding and fixing device

Abstract

The utility model relates to the technical field of welding, in particular to a horizontal water stop copper sheet welding fixing device. Comprising a left clamping block and a right clamping block which are hinged, the left clamping block comprises an upper clamping plate and a lower clamping plate which are arranged in parallel, a left clamping bolt is installed on the upper clamping plate through threads, and a left positioning block is arranged at the position, corresponding to the left clamping bolt, of the lower clamping plate; the right clamping block comprises a sliding rail hinged to the inner end of the lower clamping plate and a movable clamping head installed on the sliding rail in a sliding mode, the movable clamping head comprises an upper clamping arm and a lower clamping arm which are arranged in parallel, a right clamping bolt is installed on the upper clamping arm through threads, and a right positioning block is arranged at the position, corresponding to the right clamping bolt, of the lower clamping arm. The lower clamping arm is installed on the sliding rail in a sliding mode. According to the fixing device, the alignment and fixing problems of the lap joint during welding of the horizontal water stop copper sheet are solved, operation is easy, carrying is convenient, the lap joint of the water stop copper sheet is tightly attached during welding, and high-temperature deformation caused during welding can be restrained advantageously.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding technical field, concretely is a horizontal water stop copper sheet welding fixing device. BACKGROUND

[0002] Water stop copper sheet is widely used in water conservancy projects, mainly used for foundation water stop, dam body water stop, dam top water stop, powerhouse water stop, overflow surface lower horizontal joint water stop and other water conservancy buildings such as reservoir. It can effectively prevent water leakage, especially in construction joints, settlement joints, deformation joints and other parts, prevent water leakage. Because copper sheet is soft, and the length of water stop copper sheet is larger, usually 4 meters a piece, the finished product water stop copper sheet needs to be cut or welded into the required length according to the construction part during construction, and the lap joint is stressed and lifted during welding, which makes the two sections of water stop copper sheet difficult to fuse and easy to deform. In addition, due to the high thermal conductivity of copper, the heat is transferred quickly during welding, and the lap joint part cannot be directly held by hand for welding. Now the common method is to place the horizontal water stop copper sheet on the wooden board, the worker wears heatproof gloves, holds the water stop copper sheet, is 30cm away from the welding part, and manually aligns and welds. Because the distance is far, the welding part is not easy to align, and it is difficult to fuse during welding. In addition, the horizontal water stop copper sheet usually has a U-shaped groove structure rib, and the traditional fixing device cannot press the welded lap joint together, and the U-shaped groove and the bending support are opposite, and the contact part with the supporting surface is easy to deform during welding. Chinese patent 202210188022X discloses “water diversion tunnel water stop copper sheet fixing device”, authorization announcement number: CN114481963B, the device includes a plurality of adjusting cylinders evenly arranged on the inner wall surface of the tunnel, the adjusting cylinder is fixed on the inner wall of the tunnel through expansion bolts at the top, the adjusting cylinder is fixed with a fixed nut inside, the fixed nut is connected with a screw rod inside by screw thread, the screw rod is connected with a water stop copper sheet at the bottom, and a plurality of water stop copper sheets are connected with each other to form an arc structure. When in use, installation holes are uniformly opened on the inner wall of the tunnel, then the expansion bolts are fixed in the installation holes, then the adjusting cylinders and the water stop copper sheets are installed at the bottom of the expansion bolts, and when welding the water stop copper sheet, the distance between the water stop copper sheet and the inner wall of the tunnel can be adjusted by rotating the screw rod, so that the water stop copper sheets can be aligned with each other, the welding work can be efficiently carried out, and the sealing performance of the water stop copper sheet is improved. This fixing device is suitable for arc-shaped water stop copper sheet in water diversion tunnel construction, and the water stop copper sheet needs to be installed before welding. It cannot be used for welding of horizontal water stop copper sheet before construction. CONTENT OF THE UTILITY MODEL

[0003] In view of the defects of the prior art, the utility model provides a horizontal water stop copper sheet welding fixing device, which low-costly solves the alignment and fixing problems of the lap joint during welding of the horizontal water stop copper sheet, makes the lap joint closely fit, helps to improve the welding quality, and inhibits the high temperature deformation caused by welding.

[0004] The utility model discloses a technical scheme that solves technical problems is:

[0005] The utility model discloses a horizontal copper sheet welding fixing device of water stop includes left clamp block and the right clamp block of hinged in the left clamp block inner end, the left clamp block includes the upper clamping plate and lower clamping plate of parallel setting, be provided with the left positioning block on the position of left clamping bolt through the threaded mounting of upper clamping plate, the lower clamping plate, the right clamp block includes the slide rail of hinged in the lower clamping plate inner end, the movable chuck of sliding installation on the slide rail, the movable chuck includes the upper clamping arm and lower clamping arm of parallel setting, be provided with the right positioning block on the position of right clamping bolt through the threaded mounting of upper clamping arm on the upper clamping arm, the lower clamping arm, the lower clamping arm sliding installation is on the slide rail.

[0006] Through the scheme, the fixed device low cost has solved the alignment and fixed problem of lap joint place when horizontal copper sheet welding of water stop, makes lap joint place close fitting, is helpful to improve the welding quality, restrains the high temperature deformation caused when welding.

[0007] Preferably, the outer end of the left clamp block is provided with a left stand connected with the upper clamping plate and the lower clamping plate, the inner end of the lower clamping plate is provided with a U-shaped groove for hinging the right clamp block, the outer end of the right clamp block is provided with a right stand connected with the upper clamping arm and the lower clamping arm, and the inner end of the slide rail is provided with a hinge connecting rod hinged in the U-shaped groove.

[0008] Through the scheme, the upper clamping plate and the lower clamping plate are connected together through the left stand, and the upper clamping arm and the lower clamping arm are connected together through the right stand, which can be clamped into the lap joint place of the horizontal copper sheet of water stop from the left and right sides respectively.

[0009] Preferably, the left positioning block is a nut fixedly connected to the lower clamping plate, and the right positioning block is a nut fixedly connected to the lower clamping arm.

[0010] Through the scheme, the left positioning block and the right positioning block are made of common nuts on the construction site, which realizes low-cost manufacturing and maintenance.

[0011] Preferably, a strip-shaped groove adapted to the left clamping bolt is arranged at the central axis of the upper clamping plate, an upper clamping plate nut is fixedly connected in the strip-shaped groove, and the left clamping bolt is arranged in the upper clamping plate nut; a strip-shaped groove adapted to the right clamping bolt is arranged at the central axis of the upper clamping arm, an upper clamping arm nut is fixedly connected in the strip-shaped groove, and the right clamping bolt is arranged in the upper clamping arm nut.

[0012] Through the scheme, it is beneficial to reduce the weight of the upper clamping plate and the upper clamping arm, and the left clamping bolt and the right clamping bolt are installed by using low-cost nuts, which eliminates the need for tapping on the upper clamping plate and the upper clamping arm, reduces the manufacturing cost, and is convenient for maintenance.

[0013] Preferably, the inner end surface of the upper clamping plate and the upper clamping arm is beveled.

[0014] By the scheme, the inner end surface of the upper clamping plate and the upper clamping arm is adapted to the convex rib of the horizontal water stop copper sheet, so that the outer surface of the copper sheet can be avoided from being damaged. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Fig. 1 is a use state structural schematic diagram of an embodiment of the present application.

[0016] Figure 2 Fig. 2 is a three-dimensional structural schematic diagram of the left clamping block.

[0017] Figure 3 Fig. 3 is a sectional view along A-A of Fig. 1. Figure 1 Fig. 4 is a sectional view along B-B of Fig. 1.

[0018] Figure 4 Fig. 5 is a sectional view along C-C of Fig. 1. Figure 1 Fig. 6 is a sectional view along D-D of Fig. 1. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0020] As shown in Figure 1 , Figure 2 Fig. 1, the horizontal water stop copper sheet welding fixing device comprises a left clamping block and a right clamping block hingedly connected to the inner end of the left clamping block. In use, the left clamping block is used to fix the left side and the right clamping block is used to fix the right side, with the convex rib on the horizontal water stop copper sheet to be welded as the boundary. Figure 2As shown in the figure, the left clamp block comprises parallel arranged upper clamping plate 1 and lower clamping plate 2, and a certain gap is arranged between the upper clamping plate 1 and the lower clamping plate 2 for accommodating the horizontal water stop copper sheet after lapping; the outer end of the left clamp block is provided with the left vertical plate 11 fixedly connecting the upper clamping plate 1 and the lower clamping plate 2, and the inner end of the lower clamping plate 2 is provided with the U-shaped groove 12 for hingedly connecting the right clamp block. The upper clamping plate 1 is provided with the left clamping bolt 3 installed through screw thread, and the lower clamping plate 2 is provided with the left positioning block 4 corresponding to the position of the left clamping bolt 3. As a plurality of different embodiments of the utility model, one set of left clamping bolt 3 and left positioning block 4 can be arranged, or two or three sets can be arranged according to the width of the horizontal water stop copper sheet. As an embodiment of the utility model, the upper clamping plate 1 can adopt a whole rectangular plate, and a hole is punched and tapped at the axis thereof for installing the left clamping bolt 3. Figure 2 As shown in the figure, as another embodiment of the utility model, the middle axis of the upper clamping plate 1 is provided with a strip-shaped groove matched with the left clamping bolt 3, the strip-shaped groove is fixedly connected with the upper clamping plate nut 31, and the left clamping bolt 3 is installed in the upper clamping plate nut 31. The upper clamping plate nut 31 is a common nut matched with the left clamping bolt 3, and the two sides thereof are welded on the side wall of the strip-shaped groove.

[0021] As shown in the figure, Figure 1 , Figure 3 As shown in the figure, the right clamp block comprises the slide rail 5 hingedly connected to the inner end of the lower clamping plate 2, and the movable clamp head slidably installed on the slide rail 5. The movable clamp head comprises parallel arranged upper clamping arm 6 and lower clamping arm 7, the upper clamping arm 6 is provided with the right clamping bolt 8 installed through screw thread, the lower clamping arm 7 is provided with the right positioning block 9 corresponding to the position of the right clamping bolt 8, and the lower clamping arm 7 is slidably installed on the slide rail 5. The outer end of the right clamp block is provided with the right vertical plate 61 fixedly connecting the upper clamping arm 6 and the lower clamping arm 7, and the inner end of the slide rail 5 is provided with the hinged connecting rod 51 hingedly connected in the U-shaped groove 12. The end of the hinged connecting rod 51 is located in the U-shaped groove 12 and is connected to the side wall of the U-shaped groove 12 through the hinge shaft. Figure 3 As shown in the figure, two tracks are symmetrically arranged on the two sides of the slide rail 5, the cross-sectional shape of the track can be the open inward trapezoidal groove structure as shown in the figure, Figure 3 The inner ends of the two tracks are fixedly connected together through the hinged connecting rod 51. The two sides of the lower clamping arm 7 are provided with the sliding block matched with the tracks on the two sides of the slide rail 5, the sliding block is installed in the tracks on the two sides of the slide rail 5 and can slide along the tracks.

[0022] The left positioning block 4 and right positioning block 9 are protrusions extending from the lower clamping plate 2 and lower clamping arm 7, respectively, and each has a recess at its center that fits the lower end of the left clamping bolt 3 and right clamping bolt 8. This allows the left clamping bolt 3 and right clamping bolt 8 to engage with the left positioning block 4 and right positioning block 9 when pressed down, pressing the horizontal water-stop copper sheet and creating a hemispherical positioning point to fix the overlapping part. Therefore, as an embodiment of this utility model, the left positioning block 4 and right positioning block 9 are round tubes welded to the lower clamping plate 2 and lower clamping arm 7, or they can be nuts fixedly connected to the lower clamping plate 2 or lower clamping arm 7. Using common pre-made nuts welded to the lower clamping plate 2 or lower clamping arm 7 as the left positioning block 4 or right positioning block 9 can reduce manufacturing costs and facilitate maintenance.

[0023] As a further improvement of this utility model, a strip-shaped groove adapted to the right clamping bolt 8 is provided at the central axis of the upper clamping arm 6, and an upper clamping arm nut 81 is fixedly connected in the strip-shaped groove, and the right clamping bolt 8 is installed in the upper clamping arm nut 81.

[0024] In addition, regarding the triangular ribs on the horizontal waterstop copper sheet, such as Figure 1 As shown, the inner end faces of the upper clamping plate 1 and the upper clamping arm 6 are inclined surfaces. This allows the inclined surfaces of the inner end faces of the upper clamping plate 1 and the upper clamping arm 6 to better adapt to the inclination angle of the outer surface of the triangular rib, preventing accidental scratches to the outer surface of the triangular rib. Of course, to avoid scratching the outer surface of the triangular rib, the inner end faces of the upper clamping plate 1 and the upper clamping arm 6 can also be rounded surfaces.

[0025] like Figure 1 , Figure 4As shown, in use, the end portions of two horizontal water stop copper sheets to be welded are overlapped together, the movable chuck of the fixing device is slid to the outermost end of the slide rail 5, the movable chuck is away from the left clamping block, the gap between the movable chuck and the left clamping block is greater than the width of the horizontal water stop copper sheet, at this time the left side of the overlapped horizontal water stop copper sheet can be placed between the upper clamping plate 1 and the lower clamping plate 2 of the left clamping block, the left clamping bolt 3 is adjusted, the left side of the horizontal water stop copper sheet is pressed by the lower end of the left clamping bolt 3, the left clamping bolt 3 is tightened, and the lower end of the left clamping bolt 3 cooperates with the left positioning block 4 to press a circular indentation on the overlapped horizontal water stop copper sheet, thereby achieving the functions of positioning and inhibiting high-temperature deformation; subsequently, the movable chuck is aligned with the right side of the horizontal water stop copper sheet, the horizontal water stop copper sheet is slid into the gap between the upper clamping arm 6 and the lower clamping arm 7, the right clamping bolt 8 is adjusted, and the right side of the horizontal water stop copper sheet is pressed by the lower end of the right clamping bolt 8. After the two sides of the horizontal water stop copper sheet are pressed tightly, welding can be started, after the welding is completed, the left clamping bolt 3 and the right clamping bolt 8 are loosened, and the fixing device is removed. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A horizontal copper sheet soldering fixing device comprising a left clamp block and a right clamp block hinged at the inner end of the left clamp block, characterized in that: The left clamping block comprises parallel arranged upper clamping plate (1) and lower clamping plate (2), the upper clamping plate (1) is provided with left clamping bolt (3) through threaded installation, the lower clamping plate (2) is provided with left positioning block (4) corresponding to the position of left clamping bolt (3);The right clamping block comprises sliding rail (5) hinged to the inner end of lower clamping plate (2), movable chuck slidingly installed on the sliding rail (5), the movable chuck comprises parallel arranged upper clamping arm (6) and lower clamping arm (7), the upper clamping arm (6) is provided with right clamping bolt (8) through threaded installation, the lower clamping arm (7) is provided with right positioning block (9) corresponding to the position of right clamping bolt (8), the lower clamping arm (7) is slidingly installed on the sliding rail (5).

2. A horizontal copper stopper welding fixing device according to claim 1, characterized in that: The outer end of the left clamping block is provided with left vertical plate (11) fixedly connected with upper clamping plate (1) and lower clamping plate (2), the inner end of the lower clamping plate (2) is provided with U-shaped groove (12) for hinging the right clamping block, the outer end of the right clamping block is provided with right vertical plate (61) fixedly connected with upper clamping arm (6) and lower clamping arm (7), the inner end of the sliding rail (5) is provided with hinged connecting rod (51) hinged in the U-shaped groove (12).

3. A horizontal copper stopper welding fixing device according to claim 1 or 2, characterized in that: The left positioning block (4) is a nut fixedly connected to the lower clamping plate (2), and the right positioning block (9) is a nut fixedly connected to the lower clamping arm (7).

4. A horizontal copper stopper welding fixing device according to claim 1 or 2, characterized in that: The middle axis of the upper clamping plate (1) is provided with a strip-shaped groove matched with the left clamping bolt (3), the strip-shaped groove is fixedly connected with an upper clamping plate nut (31), and the left clamping bolt (3) is installed in the upper clamping plate nut (31); The middle axis of the upper clamping arm (6) is provided with a strip-shaped groove matched with the right clamping bolt (8), the strip-shaped groove is fixedly connected with an upper clamping arm nut (81), and the right clamping bolt (8) is installed in the upper clamping arm nut (81).

5. A horizontal copper stopper welding fixing device according to claim 1 or 2, characterized in that: The inner end surface of the upper clamping plate (1) and the upper clamping arm (6) is inclined.

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