Quick connecting device for fishing head and drill rod

By combining the design of limiting blocks and magnets, the problems of time-consuming, labor-intensive, and unstable connection between traditional retrieval heads and drill rods are solved, achieving a fast and stable connection. The camera is protected by an arc-shaped transparent cover, improving recognition accuracy and protection.

CN223523693UActive Publication Date: 2025-11-07SHENGLI OILFIELD SHENGDE PETROLEUM ENGINEERING TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520078884.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2025-11-07
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

Traditional methods of connecting the retrieval head and drill rod are time-consuming, labor-intensive, and unstable. Furthermore, the camera is not sufficiently protected when identifying targets and is easily damaged.

Method used

The design employs a combination of limiting blocks and magnets, with the limiting pins and springs connecting them to achieve a quick and stable connection between the retrieval head and the drill rod. At the same time, an arc-shaped transparent cover and adjusting bolts are used to fix the camera, improving its protection and recognition accuracy.

Benefits of technology

It enables a quick and stable connection between the retrieval head and the drill pipe, improving the flexibility and stability of the connection, protecting the camera, and extending its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of drilling tools, and provides a quick connecting device for a fishing head and a drill rod, which comprises a drill rod main body and a fishing head main body, the outer surface of the drill rod main body is provided with two sliding chutes, the outer surface of the drill rod main body is provided with an annular groove, and the annular groove is communicated with the sliding chutes; the fishing head body is embedded into the drill rod body, the two arc-shaped plates are clamped on the outer surface of the drill rod body in a sleeving mode, the two arc-shaped positioning plates are embedded into the drill rod body, the limiting blocks are embedded into the sliding grooves, after the limiting blocks slide into the annular grooves, the annular plates are attached to one end of the drill rod body, and then the fishing head body is rotated by 90 degrees; limiting blocks are embedded into annular grooves, two limiting pins penetrate through through holes under the elastic action of springs and then are embedded into limiting holes, the fishing head body is connected with a drill rod body, magnets are fixedly installed on the outer surfaces of arc-shaped positioning plates and attract the inner wall of the drill rod body, and stability is better improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to drilling tool technical field especially relates to a quick connecting device of fishing head and drill rod. BACKGROUND

[0002] Drilling pile may occasionally occur drill head and drill rod separation, drill rod body fracture and other accidents during drilling, resulting in drill head falling to the hole bottom. Once the drill head falls off, the drill head must be fished out in time, otherwise the hole wall is easy to collapse for long-term opening, which may cause the drill head to be scrapped on one hand, and other complex technical measures need to be taken to continue drilling construction on the other hand, which may even cause pile foundation to be scrapped and change the design, delay the construction period and cause huge economic losses.

[0003] However, in the prior art, the traditional fishing head and drill rod are connected by threads or welding, the threaded installation is time-consuming and laborious, the rust on the threaded part will affect the stability of the connection between the fishing head and the drill rod, the welding connection is not convenient for replacing the fishing head, the flexibility is poor, and in the fishing process, a camera is needed to identify the target, the protection of the camera is low, the camera is easy to be damaged, and the identification effect is reduced. UTILITY MODEL CONTENTS

[0004] The utility model discloses a quick connecting device of fishing head and drill rod, which can solve the problems in the prior art that the traditional fishing head and drill rod are connected by threads or welding, the threaded installation is time-consuming and laborious, the rust on the threaded part will affect the stability of the connection between the fishing head and the drill rod, the welding connection is not convenient for replacing the fishing head, the flexibility is poor, and in the fishing process, a camera is needed to identify the target, the protection of the camera is low, the camera is easy to be damaged, and the identification effect is reduced.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a quick connecting device of fishing head and drill rod, which comprises a drill rod body and a fishing head body, two sliding grooves are formed on the outer surface of the drill rod body, an annular groove is formed on the outer surface of the drill rod body, the annular groove is communicated with the sliding groove, and the device further comprises:

[0006] An annular plate is fixedly installed on the outer surface of the fishing head body, two arc-shaped plates are fixedly installed on the outer surface of the annular plate;

[0007] Two limiting pins are movably embedded in the upper ends of the opposite surfaces of the two arc-shaped plates, springs are fixedly connected to the outer surfaces of the limiting pins, and the other ends of the springs are fixedly connected to the outer surfaces of the arc-shaped plates;

[0008] Two arc-shaped positioning plates are fixedly installed on the top of the fishing head body, and limiting holes are formed on the outer surfaces of the arc-shaped positioning plates.

[0009] Preferably, the upper end of the opposite surface of the two arc-shaped plates is fixedly installed with a limiting block.

[0010] The technical effect of the further scheme is that the limiting block can connect the fishing head body and the drill rod body, thereby improving stability.

[0011] Preferably, the opposite surfaces of the two arc-shaped positioning plates are fixedly installed with magnets.

[0012] The technical effect of the further scheme is that the magnets are adsorbed to the inner wall of the drill rod body, thereby better improving stability and enabling the fishing head body and the drill rod body to be more stably connected together.

[0013] Preferably, the outer surface of the drill rod body close to the annular groove is provided with two through holes, and the outer surface of the fishing head body is fixedly installed with a protective block.

[0014] The technical effect of the further scheme is that the protective block can protect the camera, thereby improving the service life of the camera.

[0015] Preferably, the outer surface of the protective block is provided with a mounting hole, and the bottom of the protective block is fixedly installed with an arc-shaped transparent cover.

[0016] The technical effect of the further scheme is that the arc-shaped transparent cover can protect the camera, thereby preventing the camera from being damaged.

[0017] Preferably, one side of the outer surface of the protective block is threadedly installed with an adjusting bolt, and one end of the adjusting bolt is bearingly installed with an arc-shaped clamping plate.

[0018] The technical effect of the further scheme is that the arc-shaped clamping plate fixes and limits the camera.

[0019] Compared with the prior art, the utility model has the advantages and positive effects that,

[0020] 1. In the utility model, the fishing head body is embedded in the inside of the drill rod body, the two arc-shaped plates are sleeved on the outer surface of the drill rod body, the two arc-shaped positioning plates are embedded in the inside of the drill rod body, the limiting block is embedded in the inside of the sliding groove, after being slid into the inside of the annular groove, the annular plate is attached to one end of the drill rod body, then the fishing head body is rotated by 90 degrees, the limiting block is embedded in the inside of the annular groove, the two limiting pins are embedded in the inside of the limiting hole under the elastic force of the spring after passing through the through hole, the fishing head body is connected with the drill rod body, the outer surface of the arc-shaped positioning plate is fixedly installed with a magnet, the magnet is adsorbed to the inner wall of the drill rod body, thereby better improving stability and enabling the fishing head body and the drill rod body to be more stably connected together.

[0021] 2. The utility model discloses a camera is embedded in the inside of mounting hole, and the rotation adjusting bolt drives arc clamping plate to carry out fixed limit to camera, and the camera can be identified target through arc transparent cover, makes the fishing head main part more accurate and carries out the fishing effect, and arc transparent cover can protect the camera, prevents its damage. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The utility model proposes a kind of structural schematic diagram of quick connecting device of fishing head and drill rod;

[0023] Figure 2 The utility model proposes a kind of side view structural schematic diagram of quick connecting device of fishing head and drill rod;

[0024] Figure 3 The utility model proposes a kind of explosive structural schematic diagram of quick connecting device of fishing head and drill rod;

[0025] Figure 4 The utility model proposes a kind of sectional view structural schematic diagram of quick connecting device of fishing head and drill rod.

[0026] Legend:

[0027] 1, drill rod main body;101, sliding groove;102, annular groove;103, arc plate;104, limit pin;105, spring;106, fishing head main body;107, protective block;108, arc transparent cover;109, annular plate;110, arc positioning plate;111, limit hole;112, limit block;113, through hole;114, magnet;115, mounting hole;116, adjusting bolt;117, arc clamping plate. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with drawings and examples.It should be noted that the embodiments of the present application and the features in the examples can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model can also be implemented in other ways different from those described herein, therefore, the present utility model is not limited to the specific embodiments disclosed in the following disclosure.

[0030] Example 1, as Figures 1-4As shown, the utility model provides a kind of quick connecting device of fishing head and drill rod, it includes: drill rod main body 1 and fishing head main body 106, the outer surface of drill rod main body 1 is equipped with two grooves 101, the outer surface of drill rod main body 1 is equipped with annular groove 102, annular groove 102 is communicated with groove 101, still include: annular plate 109, fixedly installed on the outer surface of fishing head main body 106, the outer surface of annular plate 109 is fixedly installed with two arc plates 103;Two limit pins 104, are movably embedded in the upper end of the opposite side of two arc plates 103, the outer surface of limit pin 104 is fixedly connected with spring 105, the other end of spring 105 is fixedly connected on the outer surface of arc plate 103;Two arc-shaped locating plates 110 are fixedly installed on the top of fishing head main body 106, and the outer surface of arc-shaped locating plate 110 is equipped with limit hole 111;The upper end of the opposite side of two arc plates 103 is fixedly installed with limit block 112;The opposite side of two arc-shaped locating plates 110 is fixedly installed with magnet 114.

[0031] In the embodiment, the fishing head main body 106 is embedded in the interior of the drill rod main body 1, the two arc plates 103 are clamped on the outer surface of the drill rod main body 1, and the two arc-shaped locating plates 110 are embedded in the interior of the drill rod main body 1. The limit block 112 is embedded in the interior of the groove 101, and after being slid into the interior of the annular groove 102, the annular plate 109 is attached to one end of the drill rod main body 1. Then, the fishing head main body 106 is rotated by 90 degrees, so that the limit block 112 is embedded in the interior of the annular groove 102. The two limit pins 104 pass through the through hole 113 and are then embedded in the interior of the limit hole 111 under the elastic force of the spring 105. The fishing head main body 106 is connected with the drill rod main body 1. The outer surface of the arc-shaped locating plate 110 is fixedly installed with the magnet 114, which is adsorbed to the inner wall of the drill rod main body 1. The stability is improved, and the fishing head main body 106 and the drill rod main body 1 are more stably connected together.

[0032] In the embodiment, the fishing head main body 106 is embedded in the interior of the drill rod main body 1, the two arc plates 103 are clamped on the outer surface of the drill rod main body 1, and the two arc-shaped locating plates 110 are embedded in the interior of the drill rod main body 1. The limit block 112 is embedded in the interior of the groove 101, and after being slid into the interior of the annular groove 102, the annular plate 109 is attached to one end of the drill rod main body 1. Then, the fishing head main body 106 is rotated by 90 degrees, so that the limit block 112 is embedded in the interior of the annular groove 102. The two limit pins 104 pass through the through hole 113 and are then embedded in the interior of the limit hole 111 under the elastic force of the spring 105. The fishing head main body 106 is connected with the drill rod main body 1. The outer surface of the arc-shaped locating plate 110 is fixedly installed with the magnet 114, which is adsorbed to the inner wall of the drill rod main body 1. The stability is improved, and the fishing head main body 106 and the drill rod main body 1 are more stably connected together. Figures 1-4 As shown, the outer surface of the drill rod main body 1 near the annular groove 102 is equipped with two through holes 113, and the outer surface of the fishing head main body 106 is fixedly installed with a protective block 107. The outer surface of the protective block 107 is equipped with a mounting hole 115, and the bottom of the protective block 107 is fixedly installed with an arc-shaped transparent cover 108. The outer surface of one side of the protective block 107 is threadedly installed with an adjusting bolt 116, and one end of the adjusting bolt 116 is bearingly installed with an arc-shaped clamping plate 117.

[0033] In the embodiment, the camera is embedded in the interior of the mounting hole 115, and the arc-shaped clamping plate 117 is rotated to fix and limit the camera by the adjusting bolt 116. The camera can identify the target through the arc-shaped transparent cover 108, so that the fishing head main body 106 can more accurately perform the fishing function. The arc-shaped transparent cover 108 can protect the camera from being damaged.

[0034] Working principle: when using, the fishing head body 106 is embedded in the inside of the drill rod body 1, the two arc-shaped plates 103 are clamped on the outer surface of the drill rod body 1, the two arc-shaped positioning plates 110 are embedded in the inside of the drill rod body 1, the limiting block 112 is embedded in the inside of the sliding groove 101, after sliding into the inside of the annular groove 102, the annular plate 109 is attached to one end of the drill rod body 1, then the fishing head body 106 is rotated by 90 degrees, the limiting block 112 is embedded in the inside of the annular groove 102, the two limiting pins 104 are embedded in the inside of the limiting hole 111 through the through hole 113 under the elastic force of the spring 105, the fishing head body 106 is connected with the drill rod body 1, the outer surface of the arc-shaped positioning plate 110 is fixedly installed with the magnet 114, and the inner wall of the drill rod body 1 is adsorbed, so that the stability is better improved, the fishing head body 106 and the drill rod body 1 are more stably connected together, the camera is embedded in the inside of the mounting hole 115, the arc-shaped clamping plate 117 is fixed and limited to the camera by rotating the adjusting bolt 116, the camera can identify the target through the arc-shaped transparent cover 108, the fishing head body 106 can be more accurately fished, the arc-shaped transparent cover 108 can protect the camera and prevent the camera from being damaged.

[0035] The above is only a preferred embodiment of the present application, and does not limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments still belongs to the protection scope of the present application.

Claims

1. A quick connect device for a fishing head and a drill pipe, comprising: Drill rod body (1) and fishing head body (106), the outer surface of the drill rod body (1) is provided with two sliding grooves (101), the outer surface of the drill rod body (1) is provided with annular groove (102), the annular groove (102) is communicated with sliding groove (101), characterized by further comprising: Annular plate (109), fixedly installed on the outer surface of the fishing head body (106), the outer surface of the annular plate (109) is fixedly installed with two arc-shaped plates (103); Two limit pins (104) are movably embedded in the upper end of the opposite side of the two arc-shaped plates (103), the outer surface of the limit pin (104) is fixedly connected with spring (105), the other end of the spring (105) is fixedly connected with the outer surface of the arc-shaped plate (103); Two arc-shaped positioning plates (110) are fixedly installed on the top of the fishing head body (106), the outer surface of the arc-shaped positioning plate (110) is provided with limiting hole (111).

2. A quick connecting device of a fishing head and a drill pipe according to claim 1, characterized in that: The upper end of the opposite side of the two arc-shaped plates (103) is fixedly installed with limiting block (112).

3. A quick connecting device of fishing head and drill pipe according to claim 1, characterized in that: The opposite side of the two arc-shaped positioning plates (110) is fixedly installed with magnet (114).

4. A quick connecting device of fishing head and drill pipe according to claim 1, characterized in that: The outer surface of the drill rod body (1) close to the annular groove (102) is provided with two through holes (113), the outer surface of the fishing head body (106) is fixedly installed with protection block (107).

5. A quick connecting device of a fishing head and a drill pipe according to claim 4, characterized in that: The outer surface of the protection block (107) is provided with mounting hole (115), and the bottom of the protection block (107) is fixedly installed with arc-shaped transparent cover (108).

6. A quick connecting device of a fishing head and a drill pipe according to claim 4, characterized in that: The outer surface of the protection block (107) is provided with adjusting bolt (116), and the outer surface of the protection block (107) is provided with adjusting bolt (116), and the outer surface of the protection block (107) is provided with adjusting bolt (116).