Simple precipitation well wall protection pipe lowering tool

Abstract

The utility model discloses a simple and easy precipitation well wall pipe lowering tool, including frame, connecting rod, pulley and steel wire rope. The frame is rectangular frame structure, is equipped with two connecting rods in the frame, and is fixedly connected with the frame inboard in both ends, forms the support structure. The connecting rod is provided with the pulley between the frame border, and the pulley is rotatably installed at the fixed position through the pivot. The steel wire rope is formed after the pulley of left and right sides is worn in the hanging point under the frame, and the steel wire rope end is connected with external power device. The tool utilizes the cooperation of frame and pulley to realize the change of steel wire rope stress direction, can realize the stable lowering of wall pipe under the action of external power, and the simple and easy structure is convenient to operate, is applicable to the hoisting and positioning of wall pipe in the construction process of precipitation well.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for well construction, and specifically relates to a simple tool for lowering the protective pipe of a dewatering well. Background Technology

[0002] The maximum depth of the dewatering well is 25m, and the diameter is 40-60cm. After the dewatering well is completed, a protective pipe is installed below it. The protective pipe is 1m long and weighs about 100kg. If a truck crane is used to lower the well, the construction cost will be high, and it is difficult to carry out the construction on a narrow water-retaining cofferdam.

[0003] After the dewatering well is completed, the protective casing is lowered manually using a simple tool. This method, which involves laying the casing after the well is completed and then manually lowering it using wire ropes, reduces construction costs and speeds up the construction process. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a tool for lowering the protective pipe of a dewatering well that is simple in structure, easy to operate, and suitable for hoisting and positioning the protective pipe during the construction of dewatering wells.

[0005] The technical solution of this utility model is as follows: a simple tool for lowering the protective pipe of a dewatering well, comprising: a frame, connecting rods, pulleys and steel wire ropes. The frame is a rectangular frame structure. The frame is provided with two connecting rods. The two connecting rods are fixedly connected to the frame and form a U-shaped structure with the frame. A pulley is provided between the connecting rods and the frame edge. The pulley is fixedly connected to the connecting rods. The steel wire rope is wound around the pulley, and the end of the steel wire rope is connected to an external power source.

[0006] Furthermore, the steel wire rope is sequentially wound around the pulleys on the left and right sides, forming a hanging point below the frame.

[0007] Furthermore, the frame is welded from rectangular steel tubes and has an anti-corrosion coating on its outer surface.

[0008] Furthermore, the end of the wire rope is connected to a winch or a manual hoist.

[0009] The beneficial effects of this utility model are as follows: This utility model provides a simple tool for lowering the protective pipe of a dewatering well. By using the cooperation of a frame and pulleys, the force direction of the wire rope is changed, which can achieve the smooth lowering of the protective pipe under the action of external power. The structure is simple and easy to operate. It is suitable for hoisting and positioning the protective pipe during the construction of dewatering wells. It solves the problem that it is impossible to set up a crane on a narrow cofferdam. At the same time, the use of manual lowering of the protective pipe of the dewatering well also reduces the construction cost of the dewatering well and speeds up the construction progress. Attached Figure Description

[0010] Figure 1 This is a structural schematic diagram of a simple dewatering well casing lowering tool according to the present invention.

[0011] In the diagram: 1-frame, 2-connecting rod, 3-pulley, 4-wire rope. Detailed Implementation

[0012] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0013] like Figure 1 As shown, a simple tool for lowering the casing pipe of a dewatering well includes a frame 1, connecting rods 2, pulleys 3, and wire ropes 4. The frame 1 is a rectangular frame structure, welded from rectangular steel pipes, featuring high overall strength, moderate weight, and structural stability. To adapt to the humid conditions of the construction environment, the outer surface of the frame 1 can be sprayed with an anti-corrosion coating to improve corrosion resistance and service life. Two connecting rods 2 are installed inside the frame 1, respectively fixedly connected to opposite edges of the frame 1, forming a structure similar to a "mesh". The support structure in the shape of the character "" is used to enhance the overall stability of the frame. A pulley 3 is provided between the connecting rod 2 and the frame 1. The pulley 3 is fixedly connected to the connecting rod 2. The pulley 3 is used to change the running direction of the wire rope 4 and reduce frictional resistance, thereby realizing the smooth lowering of the protective wall pipe. The wire rope 4 is sequentially wound around the pulleys 3 on the left and right sides, forming a hanging point below the frame 1, which is used to hang the lifting lugs or lifting rings of the protective wall pipe. The end of the wire rope 4 can be connected to a winch or manual hoist to provide the power required to lower the protective wall pipe.

[0014] When in use, first place the frame 1 above the wellhead, so that the bottom of the frame 1 is stably supported on the edge of the wellhead; then, connect the protective pipe to the hanging point of the wire rope 4 through the lifting lug, and slowly loosen the wire rope 4 using a winch or manual hoist. With the guidance of the pulley 3, the protective pipe is smoothly lowered to the predetermined depth along the vertical direction of the wellhead.

[0015] Through the above structural design, this utility model can simplify the lowering operation of the protective pipe, avoid the danger and inconvenience caused by direct manual handling, and at the same time, by using the cooperation of pulley 3 and wire rope 4, it can effectively reduce the labor intensity of operators and improve construction efficiency.

[0016] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A simple tool for lowering the casing pipe of a dewatering well, characterized in that, include: The frame (1), connecting rod (2), pulley (3) and wire rope (4) are provided. The frame (1) is a rectangular frame structure. The frame (1) is provided with two connecting rods (2). The two connecting rods (2) are fixedly connected to the frame (1) and form a U-shaped structure with the frame (1). A pulley (3) is provided between the connecting rod (2) and the frame (1). The pulley (3) is fixedly connected to the connecting rod (2). The wire rope (4) is wound around the pulley (3). The end of the wire rope (4) is connected to an external power source.

2. The simplified dewatering well casing lowering tool according to claim 1, characterized in that, The steel wire rope (4) is sequentially wound around the pulleys (3) on the left and right sides, forming a hanging point below the frame (1).

3. The simplified dewatering well casing lowering tool according to claim 1, characterized in that, The frame (1) is welded from rectangular steel pipes and has an anti-corrosion coating on its outer surface.

4. The simplified dewatering well casing lowering tool according to claim 1, characterized in that, The end of the wire rope (4) is connected to a winch or a manual hoist.

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