A lifting fixture for large-curved wooden arches

Abstract

The utility model provides a hoisting fixture for a large-curved wooden arch, comprising two groups of clamping frames respectively located at the front and rear sides of the large-curved wooden arch, one end of the two groups of clamping frames being fastened and clamped by tension screws, and the other end being connected by connecting bolts; each group of clamping frames comprises an upper cross bar, a lower cross bar, a left side bar and a right side bar, and the sides of the left side bar and the right side bar close to the large-curved wooden arch are arc-shaped surfaces. The use of the hoisting fixture can clamp the workpiece quickly and accurately, avoid manual operation errors, and thus improve production efficiency. The hoisting fixture has an anti-slip and stabilizing effect on the workpiece, can avoid the phenomenon of deviation and vibration of the workpiece during the processing, can accurately position the workpiece, and ensure processing accuracy and quality. The use of the hoisting fixture can reduce the operator's repetitive labor during the processing, thereby reducing labor intensity and improving work efficiency. The use of the hoisting fixture can stably fix the workpiece, reduce the risk of accidental injury to the operator, and improve work safety.

Description

Technical Field

[0001] The utility model belongs to the field of building construction tools, in particular to a hoisting clamp for a large-arc wooden arch. Background Art

[0002] At the construction site of a large-arc wooden arch, the hoisting space is relatively compact. Conventional hoisting methods cannot be used to achieve vertical downward hoisting because the center of gravity of the curved wooden arch is different from that of a straight beam. The uneven force on the curved surface of the wooden arch can easily cause the hoisting to slip, posing a major safety hazard. At the same time, if blocks are installed on the wooden arch to prevent slipping, the number of self-tapping screws used for connection will be increased. The self-tapping screws will damage the paint on the surface of the wooden structure, requiring secondary repairs later; this greatly increases the workload of the project installation. Utility Model Content

[0003] The utility model aims to provide a hoisting fixture for a large-arc wooden arch, which has anti-slip and stabilizing effects on the wooden arch, and can achieve precise positioning during the installation of the wooden arch, with convenient installation and reliable connection.

[0004] The utility model is achieved in this way: a lifting clamp for a large-curvature wooden arch is used for cooperating with a manual hoist to realize the lifting of the large-curvature wooden arch, the lifting clamp comprises two groups of clamping frames, the two groups of clamping frames are respectively located at the front and rear sides of the large-curvature wooden arch, one end of the two groups of clamping frames is fastened and clamped by tension screws, and the other end is connected by connecting bolts; each group of the clamping frames comprises an upper cross bar, a lower cross bar, a left side bar and a right side bar, the left end of the upper cross bar is fixedly connected to the top end of the left side bar, and the right end is fixedly connected to the top end of the right side bar; the left end of the lower cross bar is fixedly connected to the bottom end of the left side bar, and the right end is fixedly connected to the bottom end of the right side bar; the sides of the left side bar and the right side bar close to the large-curvature wooden arch are arc-shaped surfaces matching the shape of the large-curvature wooden arch.

[0005] Furthermore, the right side rods of the two groups of clamping frames extend connecting parts in opposite directions respectively, and the connecting parts are provided with strip holes. The other ends of the two groups of clamping frames are adjustably connected by installing the connecting bolts in the strip holes.

[0006] Furthermore, the left side rod and the right side rod are respectively integrally bent toward the side direction close to the large-curvature wooden arch to form the arc-shaped surface.

[0007] Furthermore, the clamping frame is made of square steel, and the material is Q235B carbon structural steel.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] 1. Improve production efficiency. The use of this lifting fixture can quickly and accurately clamp the workpiece, avoiding manual operation errors, thereby improving production efficiency.

[0010] 2. Ensure processing quality. The lifting fixture has anti-slip and stabilizing effects on the workpiece, which can prevent the workpiece from offsetting and vibrating during processing, and can accurately position the workpiece to ensure processing accuracy and quality.

[0011] 3. Reduce labor intensity. The use of this lifting fixture can reduce the operator's repetitive labor during the processing, thereby reducing labor intensity and improving work efficiency.

[0012] 4. Improve safety. The use of this lifting fixture can stably fix the workpiece, reduce the risk of accidental injury to the operator, and improve work safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional structural diagram of a hoisting clamp provided by an embodiment of the utility model after clamping a wooden arch;

[0014] Figure 2 It is a cross-sectional view of a lifting clamp provided by an embodiment of the utility model after clamping a wooden arch;

[0015] Figure 3 It is a side view of a lifting clamp provided by an embodiment of the utility model after clamping a wooden arch;

[0016] Figure 4 It is a schematic diagram of a lifting fixture provided by an embodiment of the utility model in cooperation with a manual hoist to lift a large-arc wooden arch. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0019] Please see Figures 1 to 3 , shows a hoisting fixture 100 for a large-curved wooden arch provided in this embodiment, which is used to cooperate with a manual hoist to realize the hoisting of a large-curved wooden arch 200. The hoisting fixture includes two sets of clamping frames, which are respectively located on the front and rear sides of the large-curved wooden arch 200. One end of the two sets of clamping frames is fastened and clamped by an M20 tension screw 1, and the other end is connected by an M30 connecting bolt 2. The two sets of clamping frames are respectively placed on the front and rear sides of the large-curved wooden arch 200, and then the tension screws 1 and connecting bolts 2 on the left and right sides are tightened, so that the 300*800 large-section large-curved wooden arch 200 in the middle of the two sets of clamping frames can be clamped.

[0020] Specifically, each set of clamping frames in this embodiment includes an upper cross bar 3, a lower cross bar 4, a left side bar 5 and a right side bar 6. The clamping frames (i.e., the upper cross bar 3, the lower cross bar 4, the left side bar 5 and the right side bar 6) are all made of 40*100*4mm square steel, and the material is Q235B carbon structural steel.

[0021] The left end of the upper cross bar 3 is fixed to the top of the left side bar 5 by welding, and the right end is fixed to the top of the right side bar 6 by welding; the left end of the lower cross bar 4 is fixed to the bottom end of the left side bar 5 by welding, and the right end is fixed to the bottom end of the right side bar 6 by welding.

[0022] In order to better lock and connect with the large-curved wooden arch 200, the side of the left rod 5 and the right rod 6 close to the large-curved wooden arch 200 is a curved surface that matches the shape of the large-curved wooden arch 200. In actual production, the left rod 5 and the right rod 6 can be integrally bent toward the side of the large-curved wooden arch 200 to form the curved surface. The curved surface can also be formed by cutting the side of the left rod 5 and the right rod 6 close to the large-curved wooden arch 200.

[0023] Furthermore, the right side rods 6 of the two sets of clamping frames extend connecting parts in opposite directions respectively, and the connecting parts are provided with strip holes. The other ends of the two sets of clamping frames are adjustable connected by installing connecting bolts 2 in the strip holes. Through this structural design, in combination with the adjustable tension screws 1, it can be suitable for wooden arches of different thicknesses.

[0024] Compared with the traditional wooden arch installation, the uneven force of the wooden arch arc surface hoisting can easily cause the hoisting to slip, which poses a greater safety hazard. At the same time, if the block is installed on the wooden arch to prevent slipping, the self-tapping screws used for connection will be increased. The self-tapping screws will damage the paint on the surface of the wooden structure, and secondary repairs will be required later; it greatly increases the workload of the project installation. Please refer to Figure 4 The use of the hoisting fixture 100 of this embodiment in conjunction with a manual hoist to hoist a large-radian wooden arch 200 has the following advantages:

[0025] 1. Improve production efficiency. The use of this lifting fixture can quickly and accurately clamp the workpiece, avoiding manual operation errors, thereby improving production efficiency.

[0026] 2. Ensure processing quality. The lifting fixture has anti-slip and stabilizing effects on the workpiece, which can prevent the workpiece from offsetting and vibrating during processing, and can accurately position the workpiece to ensure processing accuracy and quality.

[0027] 3. Reduce labor intensity. The use of this lifting fixture can reduce the operator's repetitive labor during the processing, thereby reducing labor intensity and improving work efficiency.

[0028] 4. Improve safety. The use of this lifting fixture can stably fix the workpiece, reduce the risk of accidental injury to the operator, and improve work safety.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hoisting fixture for a large-curved wooden arch, used to cooperate with a manual hoist to achieve the hoisting of a large-curved wooden arch, characterized in that: The lifting fixture includes two groups of clamping frames, which are respectively located at the front and rear sides of the large-curvature wooden arch, one end of the two groups of clamping frames are fastened and clamped by tension screws, and the other ends are connected by connecting bolts; each group of the clamping frames includes an upper cross bar, a lower cross bar, a left side bar and a right side bar, the left end of the upper cross bar is fixedly connected to the top end of the left side bar, and the right end is fixedly connected to the top end of the right side bar; the left end of the lower cross bar is fixedly connected to the bottom end of the left side bar, and the right end is fixedly connected to the bottom end of the right side bar; the sides of the left side bar and the right side bar close to the large-curvature wooden arch are arc-shaped surfaces matching the shape of the large-curvature wooden arch.

2. The lifting fixture according to claim 1, characterized in that: The right side rods of the two groups of clamping frames extend connecting parts in opposite directions respectively, and the connecting parts are provided with strip holes. The other ends of the two groups of clamping frames are adjustably connected by installing the connecting bolts in the strip holes.

3. The lifting fixture according to claim 1, characterized in that: The left side rod and the right side rod are respectively integrally bent toward the side direction close to the large-curvature wooden arch to form the arc-shaped curved surface.

4. The lifting fixture according to claim 1, characterized in that: The clamping frame is made of square steel, and the material is Q235B carbon structural steel.

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