A sleeve male tap catching device

Abstract

The utility model discloses a sleeve male tap capturing device belongs to drill bit fishing equipment technical field, including the protective sleeve and the male tap sleeve that sets up in the inside of protective sleeve, the outer wall of male tap sleeve is provided with the thread, and the bottom of protective sleeve and male tap sleeve all are equipped with the one end to the inclined mouth of 10 inclined 20 of upper inclination. The utility model discloses when the drill rod drives protective sleeve and male tap sleeve to enter the hole and fish drill bit, through the enlarged capture area of protective sleeve, make the drill bit more convenient to be captured by protective sleeve, utilize the inclined mouth of male tap sleeve lower end to be more convenient to insert the assembly groove on the drill bit in, and cooperate the inclined outer wall of male tap sleeve lower end and keep tightening down, make male tap sleeve can be fully rotated into the assembly groove on the top of drill rod, and then can utilize the high tenacity characteristics of rubber and make it can cooperate the thread of outer wall and rotate into the assembly groove on the drill bit and complete capture.

Description

Technical Field

[0001] This utility model relates to a capture device, and more particularly to a sleeve male cone capture device, belonging to the technical field of drill bit retrieval equipment. Background Technology

[0002] When using a drilling rig, the drill bit may become loose and fall off, requiring retrieval. Common causes of drill bit detachment include stripped threads at the connection between the drill bit and the drill rod, or broken pins.

[0003] When a drill bit slips and falls off during retrieval at the construction site, the threaded sleeve on the drill rod cannot effectively assemble the threads on the drill bit, resulting in ineffective retrieval and affecting the construction progress. Utility Model Content

[0004] The main purpose of this utility model is to solve the problem of drill bit falling off and the inability to effectively assemble and retrieve the threads on the drill bit, which affects the construction progress, and to provide a sleeve male cone catching device.

[0005] The objective of this utility model can be achieved by adopting the following technical solution:

[0006] A sleeve-type male cone catching device includes a protective sleeve and a male cone sleeve disposed inside the protective sleeve. The outer wall of the male cone sleeve is provided with threads. The bottom ends of both the protective sleeve and the male cone sleeve are provided with an inclined opening that is tilted upward at 10°-20°.

[0007] Furthermore, the upper end of the male tapered sleeve is provided with an assembly groove, and the assembly groove is provided with an internal thread.

[0008] Furthermore, the protective sleeve has through holes at both the upper and lower ends for the drill rod to pass through.

[0009] The beneficial technical effects of this utility model are as follows: According to the male cone sleeve capturing device of this utility model, when the drill rod drives the protective sleeve and the male cone sleeve into the hole to retrieve the drill bit, the capture area is expanded by the protective sleeve, making it easier for the drill bit to be captured by the protective sleeve. At the same time, the inclined opening at the lower end of the male cone sleeve can be inserted into the assembly groove on the drill bit more conveniently. With the inclined outer wall at the lower end of the male cone sleeve being continuously tightened downwards, the male cone sleeve can be fully screwed into the assembly groove at the top of the drill rod. Then, the high toughness of the rubber can be used to make it fit the thread of the outer wall and screw into the assembly groove on the drill bit to complete the capture. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure according to a preferred embodiment of the present invention;

[0011] Figure 2This is a perspective view of the internal structure of the protective sleeve according to a preferred embodiment of the present invention;

[0012] Figure 3 This is a schematic diagram of a male conical sleeve structure according to a preferred embodiment of the present invention;

[0013] Figure 4 This is a schematic diagram of a protective sleeve structure according to a preferred embodiment of the present invention.

[0014] In the diagram: 1. Protective sleeve; 2. Male tapered sleeve. Detailed Implementation

[0015] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0016] like Figures 1-4 As shown, the male cone sleeve capturing device provided in this embodiment includes a protective sleeve 1 and a male cone sleeve 2 disposed inside the protective sleeve 1. The male cone sleeve 2 is made of high-toughness hard rubber material, and the outer wall of the male cone sleeve 2 is threaded. The bottom ends of both the protective sleeve 1 and the male cone sleeve 2 are provided with an inclined opening that slopes upwards at 10°-20°. The inclined opening makes it easier for the protective sleeve 1 to capture the drill bit downwards, increasing the capturing range. At the same time, the continuous rotation of the drill rod makes it more convenient to capture the upper end of the drill bit. The upper end of the male cone sleeve 2 is provided with an assembly groove, and the assembly groove is provided with an internal thread. The upper and lower ends of the protective sleeve 1 are provided with through holes for the drill rod to pass through. The upper thread of the male cone sleeve 2 is connected to the threaded outer wall of the drill rod, and the internal thread of the upper assembly groove of the male cone sleeve 2 should be connected to the threaded outer wall of the drill bit. To ensure consistency, the rotation direction of the drill rod is the same as the direction of tightening via the thread, preventing it from falling off. The upper end of the protective sleeve 1 is fixed by a hoop or by using hot melt adhesive, placed 5cm-10cm above the connection between the male cone sleeve 2 and the drill rod. This is to prevent stones or soil clods falling from the inner wall of the hole from affecting the drill bit. When the drill rod drives the protective sleeve 1 and the male cone sleeve 2 into the hole to retrieve the drill bit, the protective sleeve 1 expands the capture area, making it easier for the drill bit to be captured by the protective sleeve 1. At the same time, the inclined opening at the lower end of the male cone sleeve 2 makes it easier to insert into the assembly groove on the drill bit. With the inclined outer wall at the lower end of the male cone sleeve 2 continuously tightening downwards, the male cone sleeve 2 can be fully screwed into the assembly groove at the top of the drill rod. Then, the high toughness of the rubber allows it to be screwed into the assembly groove on the drill bit along with the threads of the outer wall to complete the capture.

[0017] In this embodiment, as Figures 1-4 As shown, the working process of the sleeve male cone capturing device provided in this embodiment is as follows:

[0018] Step 1: Install the male tapered sleeve 2 at the bottom end of the drill pipe, and then fix the position of the protective sleeve 1;

[0019] Step 2: Insert the drill pipe, along with the male cone sleeve 2 and the protective sleeve 1, into the drill pit to capture the drill bit;

[0020] Step 3: After the drill bit is captured by retracting the lower end of the male cone sleeve 2, the drill rod is driven to rise so that the drill bit can be retrieved;

[0021] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A sleeve-type male cone capturing device, characterized in that, The protective sleeve (1) and the male conical sleeve (2) disposed inside the protective sleeve (1) are provided with threads on the outer wall of the male conical sleeve (2). The bottom ends of the protective sleeve (1) and the male conical sleeve (2) are both provided with an inclined opening that is inclined upward at 10°-20°. The upper end of the male conical sleeve (2) is provided with an assembly groove, and the assembly groove is provided with internal threads. The upper and lower ends of the protective sleeve (1) are both provided with through holes for the drill rod to pass through.

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