Percussion drill bit convenient to salvage

Abstract

The utility model relates to a percussion drill bit convenient to salvage. The percussion drill bit comprises a hammer body, a plurality of hammer claws, a plurality of top hammer lugs, a plurality of bottom hammer lugs, a top steel ring and a bottom steel ring. The outer wall of the hammer body is connected with the multiple hammer claws at equal intervals. The lower end of the outer wall of the hammer body is connected with the multiple bottom hammer lugs at equal intervals. The upper end of the outer wall of the hammer body is connected with the multiple top hammer lugs at equal intervals. The top steel ring is connected to the upper end of the outer wall of the hammer body and penetrates through the top hammer lugs; the bottom steel ring is connected to the lower end of the outer wall of the hammer body and penetrates through the multiple bottom hammer lugs. The top hammer lug and the bottom hammer lug are both thickened. The upper end of the hammer body is connected with the hammer body connecting part used for being connected with a power source. The top steel ring and the bottom steel ring are both made of steel cables or steel bars. And the diameter of the hammer body is gradually reduced from bottom to top. The percussion drill bit convenient to salvage aims to overcome the existing defects and is convenient to salvage.

Description

Technical Field

[0001] The utility model relates to an impact drill bit which is convenient for salvage. Background Art

[0002] The punched cast-in-place pile is a commonly used construction pile type. An impact drill is used to lift a heavy drill bit with a drill edge (also known as a punching hammer), and the rock layer is cut by the impact force of free fall to form a mud retaining wall, the crushed slag is discharged to form a hole, and then a steel reinforcement cage is placed and concrete is poured. However, due to a large amount of mud at the bottom of the pile hole, the drill bit is subjected to a huge viscous force of the mud during the ascending process, and the steel cable connecting the drill bit is often broken, resulting in the impact drill bit falling into the bottom of the pile hole. At the same time, sometimes a probe stone gets stuck in the drill bit during the construction of the punched cast-in-place pile, and this problem cannot be well handled.

[0003] For the solution to the problem that the impact drill bit falls into the bottom of the pile hole, the usual method is to provide a fixed steel ring at the top of the impact drill, and salvage is carried out by replacing the new steel cable with a hook body. Since the drill bit is lifted at a single point at the top of the drill bit, the center of gravity of the drill bit and the hook often cannot be on the same vertical line, and the steel cable is likely to be broken again. Therefore, the above problems need to be solved.

[0004] For the solution to the problem that the probe stone gets stuck in the drill bit, after such an accident occurs, due to the single-point hoisting of the drill bit, it can only move in the vertical direction and cannot move in the horizontal direction. Usually, a smaller impact drill bit is specially made and lowered along the direction of the probe stone and repeatedly impacted to break it, and then the drill bit can be lifted. This solution takes a long time and the construction operation cannot be restored in the first time. Therefore, the above problems need to be solved.

[0005] Therefore, an impact drill bit which is convenient for salvage is proposed to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide an impact drill bit which is convenient for salvage to overcome the existing defects.

[0007] The technical solution for realizing the above purpose is: an impact drill bit which is convenient for salvage, comprising a hammer body, a plurality of hammer claws, a plurality of top hammer ears, a plurality of bottom hammer ears, a top steel ring and a bottom steel ring;

[0008] A plurality of the hammer claws are connected to the outer wall of the hammer body at equal intervals; a plurality of the bottom hammer ears are connected to the lower end of the outer wall of the hammer body at equal intervals; a plurality of the top hammer ears are connected to the upper end of the outer wall of the hammer body at equal intervals; the top steel ring is connected to the upper end of the outer wall of the hammer body and penetrates through a plurality of the top hammer ears; the bottom steel ring is connected to the lower end of the outer wall of the hammer body and penetrates through a plurality of the bottom hammer ears.

[0009] Preferably, both the top hammer ears and the bottom hammer ears are thickened configurations.

[0010] Preferably, the upper end of the hammer body is connected to a hammer body connection part for connecting a power source.

[0011] Preferably, both the top steel ring and the bottom steel ring are made of steel cables or steel bars.

[0012] Preferably, the diameter of the hammer body gradually decreases from bottom to top, presenting a conical shape.

[0013] The beneficial effects of the present utility model are as follows: For the impact drill bit that is convenient for salvage, by installing reliable salvage ropes on the top steel ring and the bottom steel ring, when the drill bit body falls to the bottom of the pile hole, it can be salvaged in time. Through the double-point lifting of the salvage ropes installed on the top steel ring and the bottom steel ring, it has more advantages than single-point lifting in terms of dispersing the load, and can disperse the load more evenly to increase safety and stability. At the same time, the center of gravity of the drill bit and the hook are on the same vertical line, and it is not easy for the steel cable to break again. For the situation where the probe stone jams the drill bit, after knowing the position, direction, size, etc. of the visible probe stone, the double-point lifting can move the drill bit up, down, left, and right in the hole section where it can move, so that the drill bit rotates under the action of the twisting force of the steel wire rope. If the probe stone is small, the drill bit can be passed through between the wing pieces and lifted out. Description of the Drawings

[0014] Figure 1 is the front view of the impact drill bit that is convenient for salvage of the present utility model;

[0015] Figure 2 is the bottom view of the impact drill bit that is convenient for salvage of the present utility model.

[0016] In the figure: 1. Hammer body; 2. Multiple hammer claws; 3. Multiple top hammer ears; 4. Multiple bottom hammer ears; 5. Top steel ring; 6. Bottom steel ring; 7. Hammer body connection part. Detailed Embodiment

[0017] Next, the technical solutions of the present utility model will be described clearly and completely in conjunction with the accompanying drawings. In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0018] Next, the present utility model will be further described in conjunction with the accompanying drawings.

[0019] As Figure 1-2 shown, an impact drill bit that is convenient for fishing includes a hammer body 1, a plurality of hammer claws 2, a plurality of top hammer ears 3, a plurality of bottom hammer ears 4, a top steel ring 5, a bottom steel ring 6, and a hammer body connecting portion 7; the diameter of the hammer body 1 gradually decreases from bottom to top, presenting a conical shape. Both the top hammer ears 3 and the bottom hammer ears 4 are thickened configurations.

[0020] Specifically, a plurality of hammer claws 2 are equidistantly connected to the outer wall of the hammer body 1; a plurality of bottom hammer ears 4 are equidistantly connected to the lower end of the outer wall of the hammer body 1; a plurality of top hammer ears 3 are equidistantly connected to the upper end of the outer wall of the hammer body 1; the top steel ring 5 is connected to the upper end of the outer wall of the hammer body 1 and penetrates through a plurality of top hammer ears 3; the bottom steel ring 6 is connected to the lower end of the outer wall of the hammer body 1 and penetrates through a plurality of bottom hammer ears 4.

[0021] Specifically, the upper end of the hammer body 1 is connected to the hammer body connecting portion 7 for connecting to a power source.

[0022] Specifically, both the top steel ring 5 and the bottom steel ring 6 are made of steel cables or steel bars.

[0023] Specifically, during use, by installing a reliable fishing rope on the top steel ring 5 and the bottom steel ring 6, when the drill bit body falls to the bottom of the pile hole, it can be fished in time. Through the double-point lifting of the fishing ropes installed on the top steel ring 5 and the bottom steel ring 6, it has more advantages in dispersing the load than single-point lifting, and can disperse the load more evenly to increase safety and stability. At the same time, the center of gravity of the drill bit and the hook are on the same vertical line, and it is not easy to occur the situation that the steel cable is broken again. It solves the problem that when only a single-point lifting steel ring is set at the top of the drill bit, the center of gravity of the drill bit and the hook often cannot be on the same vertical line, and it is easy to occur the situation that the steel cable is broken again. For the situation where the probe stone jams the drill bit, after knowing the position, direction, size, etc. of the visible probe stone, the double-point lifting can be used to move the drill bit up, down, left, and right in the hole section where it can move, so that the drill bit rotates under the action of the wire rope twisting force. If the probe stone is small, the drill bit can be passed through between the wing pieces and lifted out. It solves the problem that when the probe stone jams the drill bit, it takes a long time to make a specially made smaller impact drill bit to enter along the direction of the probe stone and repeatedly impact it to break it and then lift out the drill bit, and the construction operation cannot be restored in the first time.

[0024] This impact drill bit that is convenient for salvage is equipped with reliable salvage ropes on the top steel ring 5 and the bottom steel ring 6. When the drill bit body falls to the bottom of the pile hole, it can be salvaged in a timely manner. Through the double-point hoisting of the salvage ropes installed on the top steel ring 5 and the bottom steel ring 6, it has more advantages than single-point hoisting in terms of dispersing the load, and can disperse the load more evenly to increase safety and stability. At the same time, the center of gravity of the drill bit and the hook are on the same vertical line, and it is not easy for the steel cable to break again. For the situation where the probe rock jams the drill bit, after knowing the position, direction, size, etc. of the visible probe rock, the double-point hoisting can be used to move the drill bit up, down, left, and right in the movable hole section, so that the drill bit rotates under the action of the twisting force of the wire rope. If the probe rock is small, the drill bit can be passed through between the blades and lifted out.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An impact drill bit convenient for salvage, characterized in that, It includes a hammer body (1), a plurality of hammer claws (2), a plurality of top hammer ears (3), a plurality of bottom hammer ears (4), a top steel ring (5), a bottom steel ring (6) and a hammer body connecting part (7); The outer wall of the hammer body (1) is connected with a plurality of the hammer claws (2) at equal intervals; the lower end of the outer wall of the hammer body (1) is connected with a plurality of the bottom hammer ears (4) at equal intervals; the upper end of the outer wall of the hammer body (1) is connected with a plurality of the top hammer ears (3) at equal intervals; the top steel ring (5) is connected to the upper end of the outer wall of the hammer body (1) and penetrates through a plurality of the top hammer ears (3); the bottom steel ring (6) is connected to the lower end of the outer wall of the hammer body (1) and penetrates through a plurality of the bottom hammer ears (4).

2. The impact drill bit that is easy to salvage according to claim 1, wherein Both the top hammer ear (3) and the bottom hammer ear (4) are in a thickened configuration.

3. The impact drill bit convenient for salvage according to claim 1, wherein, The upper end of the hammer body (1) is connected with the hammer body connecting part (7) for connecting a power source.

4. The impact drill bit convenient for salvage according to claim 1, characterized in that, Both the top steel ring (5) and the bottom steel ring (6) are made of steel cables or steel bars.

5. The impact drill bit that is convenient for salvage according to claim 1, characterized in that, The diameter of the hammer body (1) gradually decreases from bottom to top, presenting a conical shape.

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