阅读说明：本技术 一种弹销限位钻具连接装置 (Connecting device for elastic pin limiting drilling tool ) 是由 王海峰 邱立新 王刚 于 2020-06-07 设计创作，主要内容包括：本发明的主要内容是提供一种弹销限位钻具连接装置,针对螺纹连接存在的现有技术的不足,运用弹销机构来控制反向旋转而导致钻杆脱落丢失,只有在钻机拆卸钻杆时夹持器夹持母接头上的滑动销,滑动销推动限位块才能反向旋转至使公母接头旋离钻杆脱落,保证了钻杆在反转时脱落丢失,避免造成经济损失,增加钻进效率。(The invention mainly provides a spring pin limiting drilling tool connecting device, aiming at the defects of the prior art existing in threaded connection, a spring pin mechanism is used for controlling reverse rotation to cause the falling and the loss of a drilling rod, only when a clamping device clamps a sliding pin on a female joint when the drilling machine dismantles the drilling rod, the sliding pin pushes a limiting block to reversely rotate to enable a male joint and the female joint to be rotated away from the drilling rod to fall off, the falling and the loss of the drilling rod in the reverse rotation are ensured, the economic loss is avoided, and the drilling efficiency is increased.)

1. A connecting device for a spring pin limiting drilling tool is characterized in that a pin hole is formed in the outer wall of the nose end of a female connector, a spring pin mechanism is arranged in the pin hole, a nut sliding block is arranged in the female connector, a male connector and the female connector are screwed in the nut sliding block in the screwing process, and a drill rod cannot fall off when the spring pin mechanism is limited to enable the drill rod to rotate reversely.

2. The spring pin spacing drill attachment of claim 1, wherein said male and female connectors are threaded.

3. The elastic pin limiting drill connecting device according to claim 1, wherein the elastic pin mechanism comprises a sliding pin, a spring, a limiting block and a cylindrical pin, and the sliding pin is provided with a long hole and slides back and forth by the cylindrical pin.

4. The connecting device of claim 1, wherein the nose of the male connector is an external thread, the nut slider is an internal thread, and the male connector is in threaded connection with the nut slider.

Technical Field

The invention mainly relates to a connecting device of a spring pin limiting drilling tool, which is mainly used for a drill rod joint structure for geological exploration and is widely applied to the interconnection of various drilling tools.

Background

In geological exploration, drill rods work through connection of a drilling machine, and are connected in sections through various connection structures according to drilling depths, and the connection modes include various connection modes such as a threaded connection mode, a square connection mode or a hexagonal connection mode.

Disclosure of Invention

The invention mainly provides a spring pin limiting drilling tool connecting device, aiming at the defects of the prior art in threaded connection, a spring pin mechanism is used for controlling reverse rotation to cause the falling and loss of a drill rod, and only when a clamping device clamps a sliding pin on a female joint when a drilling machine dismantles the drill rod, the sliding pin pushes a limiting block to reversely rotate to enable a male joint and the female joint to be rotated away from the drill rod to fall off.

The invention ensures that the male and female connectors cannot be unscrewed from the drill rod and fall off and be lost when the drilling machine rotates reversely, thereby avoiding economic loss and increasing the drilling efficiency.

The invention mainly comprises a male connector, a female connector, a spring pin mechanism and a nut sliding block.

The elastic pin limiting drilling tool connecting device mainly comprises a male connector, a female connector, an elastic pin mechanism and a nut sliding block.

The pin elastic limiting drilling tool connecting device comprises a male connector and a male connector, wherein the male connector comprises male connector external threads and male connector nose end threads.

Wherein a spacing drilling tool connecting device of bullet round pin, female joint includes: female joint internal thread, female joint nose end slider hole, slip round pin structure, nut slider dress is in female joint nose end slider hole, and nut slider outer wall is equipped with the recess.

Wherein a spacing drilling tool connecting device of bullet round pin, bullet round pin mechanism include: the sliding pin, the spring, the stopper, the cylindric lock.

According to the elastic pin limiting drilling tool connecting device, the sliding pin is provided with the long hole and slides back and forth by utilizing the cylindrical pin.

A spacing drilling tool connecting device of bullet round pin, female joint is inside to be equipped with internal thread and nose slider hole, female joint nose outer wall is equipped with the pinhole and is equipped with the sliding pin, the stopper, a spring, the cylindric lock, the sliding pin utilizes the cylindric lock to make a round trip to slide, the nut slider is equipped with internal thread and outer wall recess, the nut slider is put into female joint nose slider downthehole, at this moment, the spring is reset state, the stopper is spacing in nut slider outer wall recess, the male joint is equipped with external screw thread and nose thread, the in-process is closed with female joint internal thread soon to the male joint external screw thread, the male joint nose thread closes with nut slider internal thread soon. When a drill of a drilling machine needs to reversely rotate and loosen a drill rod, the limiting block is limited in the outer groove wall of the nut due to the fact that the spring is in a reset state, threaded connection of the male joint and the female joint cannot rotate, fall off and lose due to reverse rotation of the drilling machine, when the drill rod is disassembled, the clamp holder clamps the sliding pin, the sliding pin pushes the limiting block, limitation is cancelled, the drill rod is rotated and falls off due to reverse rotation of the male joint and the female joint of the drilling machine, the drill rod is disassembled, the spring is reset, the limiting block rotates back to the groove in the outer wall of the nut sliding block to limit, the phenomenon that the drill rod falls off due to.

Description of the drawings:

FIG. 1 is a front view of a male connector

FIG. 2 is a front view of the female connector

FIG. 3 is a perspective view of the female connector

FIG. 4 is a cross-sectional view of the female connector

FIG. 5 is a front view of the nut and slide

FIG. 6 is a drawing showing the external form of the male and female connectors

Wherein 1-male joint, 2-female joint, 3-nut slide block, 4-elastic pin mechanism

Wherein 101-male joint nose end screw thread and 102-male joint external screw thread

Wherein, 201 is a pin hole on the outer wall of the nose end of the female joint, 202 is a sliding block hole on the nose end of the female joint, and 203 is an internal thread of the female joint

Wherein 301-nut slide block internal thread and 302-nut slide block external wall groove

Wherein 401-sliding pin, 402-limiting block, 403-spring, 404-cylindrical pin.

Detailed Description

Reference is made to the figures contained in the accompanying drawings and in which is shown, by way of illustration and specific application, the following:

according to the figure, the elastic pin limiting drill connecting device is characterized in that an internal thread 203 and a nose sliding block hole 202 are arranged inside a female connector, a pin hole 201 is formed in the outer wall of the nose end of the female connector, a limiting block 402 is provided with a sliding pin 401, a spring 403 cylindrical pin is provided, the sliding pin 401 slides back and forth through the cylindrical pin, a nut sliding block 3 is provided with an internal thread 301 and an outer wall groove 302, the nut sliding block 3 is placed into the nose sliding block hole 202 of the female connector, the spring 403 is in a reset state and is limited, the limiting block 402 is limited in the outer wall groove 302 of the nut sliding block, an external thread 102 and a nose thread 101 are arranged on a male connector, and in the screwing process of the external thread 102 of the male connector and the internal thread 203 of the. When the drill rod of the drilling machine needs to be loosened in a reverse rotation mode, the spring 403 is in a reset state, the limiting block 402 is limited in the nut outer groove 302, and the threaded connection of the male connector and the female connector cannot rotate, fall off and lose due to the reverse rotation of the drilling machine. When the drill rod is disassembled, the clamp holder clamps the sliding pin 401, the sliding pin pushes the limiting block 402, limiting is cancelled, the drilling machine rotates reversely until the male and female connectors rotate away from the drill rod and fall off, the drill rod disassembling action is completed, the spring 403 resets, and the limiting block 402 returns to the inner side of the groove 302 on the outer wall of the nut slide block for limiting.

Any structural changes made under the teaching of the present invention, which are similar or similar to the technical solutions of the present invention, fall within the protection scope of the present invention.

The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.