Temporary fixing device for steep slope steel pipe

Abstract

A temporary steep slope steel pipe fixing device comprises a base, and a positioning assembly and a fixing mechanism are arranged on the base. The positioning assembly comprises a fixed frame and a movable frame, the fixed frame is fixed to the base, and the movable frame is adjusted to be relatively close to or away from the fixed frame through a lead screw mechanism; the fixed frame and the movable frame are each provided with a flange groove, and the flange grooves support and limit flanges of the steel pipes. The fixing mechanism comprises hydraulic cylinders, the hydraulic cylinders are arranged left and right, the output end of each hydraulic cylinder is connected with a fixing rod, and the fixing rods are inserted into or separated from preformed holes in the steel pipe construction position when the hydraulic cylinders stretch out and draw back. According to the temporary fixing device for the steep slope steel pipes, butt joint of the steel pipes and fixing of the device can be facilitated.

Description

Technical Field

[0001] The utility model relates to the field of steel pipe construction, in particular to a temporary fixing device for steep slope steel pipes. Background Art

[0002] Penstocks are steel pipes used to transport water and are often used in hydroelectric power stations. During installation on steep slopes, penstocks are prone to sliding and falling off. They are usually installed by continuous lifting with a crane, which reduces work efficiency. Therefore, temporary fixing devices are needed to temporarily fix the penstocks.

[0003] When using the existing temporary fixing device for steep slope steel pipes, the two steel pipes need to be lifted and installed again after being fixed, which makes it inconvenient to slide the two steel pipes to connect them while fixing them. The base for fixing the steel pipes is usually connected and fixed to the steep slope with bolts or steel bars, which reduces work efficiency and is inconvenient to disassemble and fix quickly. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a temporary fixing device for steep slope steel pipes, which can facilitate the docking and support of two steel pipes during installation and is also convenient for rapid disassembly at a later stage.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A temporary fixing device for a steep slope steel pipe comprises a base, on which a positioning component and a fixing mechanism are provided;

[0007] The positioning assembly includes a fixed frame and a movable frame, wherein the fixed frame is fixed on the base, and the movable frame is adjusted to be relatively close to or away from the fixed frame by a screw mechanism; the fixed frame and the movable frame are both provided with flange grooves, and the flange grooves support and limit the flange of the steel pipe;

[0008] The fixing mechanism includes hydraulic cylinders, which are arranged on the left and right. The output end of each hydraulic cylinder is connected to a fixing rod, and the fixing rod is plugged into or disengaged from a reserved hole at the steel pipe construction site when the hydraulic cylinder is extended or retracted.

[0009] The screw mechanism includes a fixed plate fixed on the base away from the other end of the fixed frame, and a screw is rotatably installed on the outer side between the fixed plate and the fixed frame. Each screw is driven by a motor; the screw is threadedly connected to the movable frame.

[0010] A guide rod is fixed between the fixed plate and the fixed frame, and the movable frame freely passes through the guide rod.

[0011] There are four groups of hydraulic cylinders, two on the left and two on the right, and the four groups of hydraulic cylinders are arranged in a mirror-symmetrical manner in the limiting grooves of the base.

[0012] The fixing rod is detachably connected to the hydraulic cylinder through a connecting plate and a fixing bolt. One end of the fixing rod is located in the limiting groove, and the other end extends out of the limiting groove.

[0013] The utility model provides a temporary fixing device for steep slope steel pipes, which has the following technical effects:

[0014] 1) By setting up the positioning assembly, the flange at the steel pipe connection is located in the flange groove of the positioning assembly. The steel pipe is supported by the fixed frame and the movable frame. The movable frame is driven to slide by the screw to facilitate the docking and installation of the two steel pipes. The flange of the steel pipe is clamped through the flange groove to facilitate the support and fixation of the steel pipe and prevent the steel pipe from sliding and falling off on a steep slope.

[0015] 2) By setting up a fixing mechanism, the hydraulic cylinder drives the fixing rod to extend and retract. The fixing rod is fixed to the telescopic rod of the hydraulic cylinder through a fixing bolt. By plugging the fixing rod into the reserved hole in the inner wall of the channel, the base is quickly fixed, reducing the use of bolt connections and enhancing the temporary fixation of the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 This is a schematic diagram of the installation of the fixing mechanism in the present utility model.

[0019] Figure 3 for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0020] In the figure: base 1, positioning assembly 2, fixing mechanism 3, fixing frame 4, movable frame 5, flange groove 6, fixing plate 7, guide rod 8, screw 9, motor 10, hydraulic cylinder 11, limit groove 12, fixing rod 13, connecting plate 14, fixing bolt 15. DETAILED DESCRIPTION

[0021] like Figure 1 As shown, a temporary fixing device for steep-slope steel pipes includes a base 1, a positioning assembly 2 mounted on top of the base 1, and a fixing mechanism 3 mounted inside the base 1. The positioning assembly 2 supports and limits the flange at the connection between the two steel pipes. The fixing mechanism 3 secures the device within the channel.

[0022] like Figure 1As shown, the positioning assembly 2 includes a fixed frame 4 and a movable frame 5. The fixed frame 4 is fixedly mounted on the top, near the rear end, of the base 1, while the movable frame 5 is movably mounted on the top, near the front end. Flange grooves 6 are defined on the top and inner walls of both fixed and movable frames 5 to support and limit the flanges of the steel pipes. A fixed plate 7 is fixed to the top, near the front end, of the base 1. Two guide rods 8 are fixed between the fixed frame 4 and the fixed plate 7. The two guide rods 8 extend through the movable frame 5, allowing the movable frame 5 to move along the axes of the two guide rods 8. Screw rods 9 are rotatably mounted on either side between the fixed frame 4 and the fixed plate 7. These screw rods 9 are driven by a motor 10 at the rear of the fixed frame 4. The movable frame 5 is threadedly connected to the screw rods 9. As the screw rods 9 rotate, the movable frame 5 moves forward and backward along the axis of the screw rods 9, allowing the movable frame 5 to move closer to or further away from the fixed frame 4, thereby adjusting the spacing between the movable frame 5 and the fixed frame 4 to match the flange spacing at the corresponding connection point between the two steel pipes.

[0023] like Figure 2-3 As shown, the fixing mechanism 3 includes four hydraulic cylinders 11, which are respectively installed at the front and rear ends of the base 1. Limiting slots 12 are provided at the outer ends of the telescopic rods of the four hydraulic cylinders 11 and extend through the base 1. A fixing rod 13 is movably installed in the limiting slots 12. A connecting plate 14 is fixedly installed at the inner end of the fixing rod 13. The outer ends of the telescopic rods of the hydraulic cylinders 11 are connected to the connecting plate 14 via four fixing bolts 15. The fixing rods 13 are extended by the hydraulic cylinders 11 and placed in the reserved holes on the inner wall of the channel, thereby fixing the base 1. When the fixing rods 13 are retracted, the device can be quickly removed.

[0024] The hydraulic cylinder 11 is fixed inside the base 1 , and the hydraulic cylinders 11 on both sides are installed in a mirror-symmetrical manner. Through the extension and retraction of the hydraulic cylinder 11 , the corresponding fixed rods 13 on both sides of the base 1 are extended and retracted.

[0025] In this embodiment, the fixing rod 13 passes through the outside of the base 1 and is set to slide inward and outward. The fixing bolt 15 passes through the connecting plate 14 and the outer end of the piston rod of the hydraulic cylinder 11 and is connected by a thread. The fixing rod 13 is connected and fixed to the telescopic rod of the hydraulic cylinder 11 through the fixing bolt 15. The base 1 is temporarily fixed in the channel by the telescopic movement of the fixing rod 13 and the engagement with the reserved hole.

[0026] Working principle and process:

[0027] 1) When in use, the base 1 is placed at the corresponding position in the channel for installing the steel pipe. When fixing, the four hydraulic cylinders 11 are started to drive the fixing rods 13 to extend, and the fixing rods 13 are inserted into the reserved holes on the inner wall of the channel, thereby fixing the base 1 in the channel.

[0028] 2) When supporting and docking the steel pipes, the flanges at the connection of the two steel pipes are placed in the corresponding flange grooves 6 of the fixed frame 4 and the movable frame 5 respectively. By starting the two motors 10 at the same time, the screw 9 rotates to drive the movable frame 5 to slide, and then drives the corresponding steel pipe to slide, so that the two steel pipes are docked and installed, and the steel pipes are temporarily fixed by the support of the flange groove 6 and the base 1.

Claims

1. A temporary fixing device for steep slope steel pipes, characterized by: It comprises a base (1), on which a positioning component (2) and a fixing mechanism (3) are provided; The positioning assembly (2) includes a fixed frame (4) and a movable frame (5), wherein the fixed frame (4) is fixed on the base (1), and the movable frame (5) is adjusted to be relatively close to or away from the fixed frame (4) through a screw mechanism; the fixed frame (4) and the movable frame (5) are both provided with flange grooves (6), and the flange grooves (6) support and limit the flange of the steel pipe; The fixing mechanism (3) includes hydraulic cylinders (11), which are arranged on the left and right sides. The output end of each hydraulic cylinder (11) is connected to a fixing rod (13), and the fixing rod (13) is connected to or disconnected from a reserved hole at a steel pipe construction location when the hydraulic cylinder (11) is extended or retracted.

2. A temporary fixing device for steep slope steel pipes according to claim 1, characterized in that: The screw mechanism comprises a fixed plate (7) fixed on the base (1) at the other end away from the fixed frame (4), a screw (9) is rotatably mounted on the outer side between the fixed plate (7) and the fixed frame (4), and each screw (9) is driven by a motor (10); the screw (9) is threadedly connected to the movable frame (5).

3. A temporary fixing device for steep slope steel pipes according to claim 2, characterized in that: A guide rod (8) is fixed between the fixed plate (7) and the fixed frame (4), and the movable frame (5) freely passes through the guide rod (8).

4. The temporary fixing device for steep slope steel pipes according to claim 1, characterized in that: The hydraulic cylinders (11) are four groups, with two groups on the left and two groups on the right. The four groups of hydraulic cylinders (11) are arranged in a mirror-symmetrical manner in the limiting grooves (12) of the base (1).

5. A temporary fixing device for steep slope steel pipes according to claim 4, characterized in that: The fixing rod (13) is detachably connected to the hydraulic cylinder (11) via a connecting plate (14) and a fixing bolt (15); one end of the fixing rod (13) is located in the limiting groove (12), and the other end extends out of the limiting groove (12).

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