KR20190048555A - Clamping device for drilling pipe elevator that applied triple locking - Google Patents

Abstract

The present invention relates to a clamping device for a drilling pipe elevator, and more particularly, to a clamping device for a drilling pipe elevator to which multiple locking devices are applied to prevent a clamping device from being opened when the clamping device for fixing a pipe for lifting and lowering the pipe during installation and removal of the pipe for drilling is installed. The present invention comprises: a left body having a left pipe seating portion formed at its center; a right body hinged to the left body at one side and formed with a right pipe seating portion symmetrical with the left pipe seating portion at its center; a locking portion in which the left body and right body are mutually fixed; a lock fixing portion installed outside the locking portion and preventing the locking portion from being opened; a handle portion provided on an upper portion of the locking portion and having two cantilevered portions protruding from the same plane as an upper surface of the left body and right body; and an auxiliary locking portion having one side passing through a holding portion provided on the upper surface of the right body and the other side inserted into an upper surface of the locking portion to fix the locking portion to prevent being opened in the rotating surface direction.

Description

[0001] The present invention relates to a clamping device for a drilling pipe,

The present invention relates to a clamping device for a drilling pipe elevator, and more particularly, to a clamping device for fixing a pipe for lifting and lowering a pipe during installation and dismantling of the pipe, To a drilling pipe elevator clamping device to which a locking device is applied.

Fossil fuels, especially oil, which are used in many industries and in real life in modern times, are generally buried deep in the underground and are discharged to the ground by buried pipes in the buried area for drilling.

These pipes must have a length corresponding to the depth of the burial area. Since it is difficult to produce and store the pipes in a desired length in one body, a plurality of pipes are connected.

These pipes must be lifted up to the height of each pipe module from the work stage at the time of installation or disassembly, so that they can be combined with and separated from the pipes at the bottom, so that the pipes can be held securely and strongly You need equipment.

The drilling pipe elevator clamping device is a device that performs such a function and is capable of lifting the pipe by pressing and fixing it to surround the outer circumferential surface of the pipe.

Such a pipe is very heavy due to its length and material, and when the drilling pipe elevator clamping device is not completely locked when the pipe is elevated to a height corresponding to the length of the pipe for joining and separating pipes, Material loss will occur.

In order to secure such a locked state, there has been known a lock mechanism for locking the opposite side of the hinge coupling of a drilling pipe elevator clamping device composed of two hinged bodies by a latch, And a double locking device in which the locking part is not opened using the locking part.

However, in such a double locking device, when both the locking portion and the locking portion are in the same rotational direction by the hinge coupling and are locked, when an unfavorable external force acting in the direction of rotation is applied, There is a problem that the fixing is released together.

KR 2020170003233 U KR 1020130102199 A

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a lock device and a lock device in which a locking part and a lock fixing part are fixedly secured by providing a separate auxiliary lock part in a direction perpendicular to a rotation surface, And it is an object of the present invention to provide a drilling pipe elevator clamping device to which a triple lock device is applied so that even if an unexpected external force acts, the lock is not released by the auxiliary lock portion.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood from the following description.

According to an aspect of the present invention, there is provided a clamping device for a drilling pipe elevator, comprising: a left body part having a left pipe seat at a center thereof; A right side body part hinged on one side of the left side body part and formed on the center of a right side pipe seating part symmetrical with the left side pipe seat part; A lock portion in which the left body portion and the right body portion are mutually fixed; A locking part provided outside the locking part and preventing the locking part from being opened; A handle portion provided on the upper portion of the lock portion and having two cantilevered portions protruding from the same plane as the left side body portion and the upper side surface of the right side body portion; And an auxiliary locking part which is inserted into an upper surface of the right body part and which is inserted into an upper surface of the locking part so that the locking part is not opened in a rotating surface direction.

The present invention with the above-described configuration can be expected to have the following effects.

By completely ensuring the fixed state of the drilling pipe elevator clamping device, the joining and separating operation of the drilling pipe can be performed safely. Particularly, since the conventional lock portion and the lock portion are fixed by the auxiliary lock portion in a direction perpendicular to the direction in which the lock portion and the lock portion are engaged for locking, even if an unfavorable external force, And the locking state is completely ensured by the locking part.

The auxiliary lock portion is supported by the elastic body and is provided in a specially designed form for engagement, that is, a form in which the horizontal support portion of the auxiliary lock portion is fitted in the groove formed in the fixed portion, When the auxiliary locking portion is installed, the horizontal supporting portion of the auxiliary locking portion is lifted by the elastic body inside the fixing portion and is taken out from the groove of the fixing portion, and then the triple locking is easily performed by only a slight rotation.

By minimizing the likelihood of occurrence of accidents, it is possible to prevent the occurrence of human and material damage, and the installation and disengagement of the locking device can be ensured without a great loss of the worker's operation efficiency by a simple operation according to the structural specificity of the present invention.

In addition, the structure of the handle is inclined downward, thereby minimizing the break of the wrist during the operation of gripping and locking the operator, thereby reducing the burden on the worker's posture. As a result, the working posture of the worker becomes easier, and the efficiency of the work is remarkably improved, which ultimately leads to a reduction in the production cost.

1 is a plan view of a drilling pipe elevator clamping device with a triple lock according to a preferred embodiment of the present invention.
2 is a side view of a drilling pipe elevator clamping device with a triple lock according to a preferred embodiment of the present invention.
3 is a front view of a drilling pipe elevator clamping device with a triple lock according to a preferred embodiment of the present invention.
4 is a perspective view of a left body portion of a drilling pipe elevator clamping apparatus to which a triple lock device is applied according to a preferred embodiment of the present invention.
5 is a perspective view of a right body portion of a drilling pipe elevator clamping apparatus to which a triple lock device is applied according to a preferred embodiment of the present invention.
6 is a perspective view of a locking portion of a drilling pipe elevator clamping device with a triple lock according to a preferred embodiment of the present invention.
7 is a perspective view of a locking part of a drilling pipe elevator clamping device to which a triple lock device according to a preferred embodiment of the present invention is applied.
8 is an overall configuration diagram of a supplementary lock portion of a drilling pipe elevator clamping device to which a triple lock device is applied according to a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a drilling pipe elevator clamping apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a plan view of a drilling pipe elevator clamping apparatus to which a triple lock apparatus according to a preferred embodiment of the present invention is applied. FIG. 2 is a perspective view of a drilling pipe elevator clamping apparatus to which a triple lock apparatus according to a preferred embodiment of the present invention is applied. FIG. 3 is a front view of a drilling pipe elevator clamping device to which a triple lock device according to a preferred embodiment of the present invention is applied, and FIG. 4 is a front elevational view of a drilling pipe elevator clamping device according to a preferred embodiment of the present invention. FIG. 5 is a perspective view of a right side body portion of a drilling pipe elevator clamping apparatus to which a triple lock device according to a preferred embodiment of the present invention is applied, FIG. 6 is a perspective view of a right side body portion of a clamping device according to a preferred embodiment of the present invention. Figure 7 is a perspective view of the locking portion of the drilling pipe elevator clamping device with the middle locking device, Figure 7 Figure 8 is a perspective view of a locking fixture of a drilling pipe elevator clamping device with a triple lock according to a preferred embodiment of the present invention and Figure 8 is a perspective view of a drilling pipe elevator clamping device with a triple lock according to a preferred embodiment of the present invention And Fig.

1, a drilling pipe elevator clamping apparatus according to a preferred embodiment of the present invention includes a left body 100, a right body 200, a lock 300, a lock fixing part 400, (500) and auxiliary lock portion (600).

In order to explain the concrete contents of the present invention, first, a standard direction is determined. When a reference direction is determined based on a surface that is substantially brought into contact with the present invention, a portion where the handle 500 is to be mounted is defined as a front surface, and the upper and lower references are defined as the upper surface on which the handle is attached. The left side of the lock portion 300 to be described later is connected to the hinge, and the right side is a portion where the latch portion 250 is installed. Hereinafter, the upper, lower, left, and right sides will be described below.

First, the left main body 100 is examined.

A left pipe seating part 110 to which a pipe is coupled may be formed for joining and separating pipes used for drilling for the purpose of the present invention.

The left pipe fitting part 110 is formed at the center of the entire body part formed by coupling the left body part 100 and the right body part 200 described later. The left pipe fitting part 110 includes a left pipe fitting part 110 may be seated on the left side of the outer circumferential surface of the pipe.

In detail, the left pipe fitting portion 110 is formed with a stepped portion in correspondence with the step formed on the pipe. The upper portion of the left pipe fitting portion 110 is formed to fit the large outer diameter of the pipe, The lower portion of the left pipe fitting portion 110 may be formed to fit a small outer diameter of the pipe.

The upper portion of the left pipe fitting portion 110 of the left body portion 100 is positioned on the left body portion 100 side with respect to the lower body fitting portion 110, As shown in Fig. The surface connected to the lower part of the left pipe fitting part 110 from the upper part to the lower part can be connected so as to have a constant inclination from the upper part to the lower part.

The left side body hinge knuckle 130 may be formed on the upper and lower sides of the left side body 100 so as to be hinged to the right side body 200 described later. The right side hinge knuckle 230 of the right side body 200 is inserted between the upper and lower hinge knuckles and penetrates the left side hinge knuckle 130 and the right side hinge knuckle 230, The left main body 100 and the right main body 200 can be hinged to each other by inserting the auxiliary hinge pin 150.

One side of a lock part 300 to be described later is hinged on the front surface of the left side body part 100 and a grip part 500 is formed on the upper part of the left side body part 100. This will be described in detail while explaining the lock part 300 and the grip part 500 Let's look at it.

Next, the right side body 200 will be described.

The right side body part 200 may have a shape that is symmetrical with the left side body part 100. That is, the right pipe fitting part 210 is formed at the center, and the upper and lower steps are formed in the same manner as the left pipe fitting part 110 of the left body part 100 described above, Shape.

The right side hinge knuckle 230 may be formed at the center of the upper and lower sides so that the left side hinge knuckle 230 can be hinged to the left side body 100 on the rear surface of the right side body 200. The hinge knuckle of the right side body 200 may be configured to be inserted between the left side hinge knuckles 130 formed on the upper and lower sides of the left side body 100 and specifically the left side hinge knuckle 130 And the right side hinge knuckle 230 may be formed at the center.

A locking part 250 is formed on a front surface of the right body part 200 so that a lock part 300 to be described later can be fixed and a grip part 500 is formed on a top part of the right part of the locking part 300, 500) will be described in detail.

On the upper surface of the right side body 200, a cradle 270 to which a body portion 610 of an auxiliary locking portion 600 to be described later can be installed is provided. The cradle 270 has a cantilever shape fixed to the upper surface of the right side body 200 and is formed in a direction from the right side body 200 toward the left side body 100, And the auxiliary locking part 600 can be positioned in a direction in which the upper surface of the locking part 300 is exposed in the lower part between the opened shapes.

Next, the lock unit 300 will be described.

The locking part 300 is formed in such a manner that the drilling pipe as a heavy object is positioned at the center of the entire body part of the drilling pipe elevator clamping device and then the left body part 100 and the right body part 200 pivot about the hinge, When the outer circumferential surface of the drill pipe is fixed by frictional force, the closed space formed by the left and right body parts 100 and 200 is fixed so as not to be opened.

If the left and right body portions 100 and 200 are not fixed by the lock portion 300, the drill pipe can not be fixed as a result. As a result, It is very important to fix it because of the danger.

The locking part 300 is formed as a handle in the shape of a 'C', one side of which is hinged to the front of the left body part 100 and the other side of which is hinged to the front side of the right side body part 200, (Not shown).

In detail, a pair of locking hinge knuckles 170 can be formed on the upper surface of the left main body 100, and a pair of locking hinge knuckles 170 can be hinged to the locking portion 300, Shaped end portions of the lock hinge knuckle 310 so as to be inserted into the center of each of the pair of lock hinge knuckles 170 formed at the upper and lower portions of the front surface of the left main body 100, As shown in FIG.

The lock part 300 and the left body part 100 are inserted into the lock part hinge knuckle 170 formed on the upper and lower parts of the front surface of the left body part 100, The locking part 300 can be rotated about the hinge coupling part with the left main body part 100 by providing the locking part hinge pin 330 through which the two hinge knuckles on the front surface are fixed.

A hinge spring 350 may be installed between the hinge knuckles 170 for coupling the upper and lower lock parts formed on the front surface of the left main body 100 so as to penetrate the hinge pin 330, 300 are hooked on the latching part 250 formed on the front surface of the right side body 200 to be described later, so that the locking part 300 can be prevented from being opened by the elastic force.

A protruding locking part 250, which can be inserted into the inner space of the 'U' shaped locking part 300, may be formed on the front surface of the right side body part 200. The locking part 250 is formed in a protruding shape, but a groove is formed at the center and the groove is provided with a fixing column 251 in the vertical direction. The hook 450 of the locking part 400, which will be described later, It can be caught by the fixed post 251.

A hinge hole extension part 370 (see FIG. 3) is provided at a portion of the upper part of the lock part 300, which is 'C' shaped, to which a lock fixing part 400 is hinge- May be formed.

Further, a fixing groove 390 is formed on the upper surface of the lock portion 300 in a downward direction from the upper surface. The fixing groove 390 serves to fix the locking part 300 by inserting the lower end of the vertical supporting part 630 of the auxiliary locking part 600 to be described later. And the vertical support portion 630 of the supplementary lock portion 600 fixed to the second support portion 270.

Next, the lock fixing portion 400 will be described.

The locking part 400 is rotated and inserted to the locking part 250 of the right body part 200 so as to be inserted into the locking part 300 and then fixed to the locking part 300 such that the locking part 300 is not opened The giver plays a role.

One of the vertical structures of the lock fixing part 400 is installed above and below the front face of the lock part 300. The lock part 400 is formed in a shape similar to a ' To the hinge hole extension portion 370, which is formed in the hinge hole.

In addition, a hinge spring 430 is provided on the lock fixing part hinge pin 410, which is hinge-coupled to the lock part 300, so that the lock fixing part 400 is locked It is possible to prevent the locking part 400 from being opened by pressing the hook 450 with the elastic force in a state where the hook 450 is hooked on the central groove fixing post 251 of the locking part 250.

A hook 450 capable of engaging with a fixing post 251 of a groove formed at the center of the locking part 250 is fixedly installed at the center of the vertical structure of the locking part 400 hinged to the locking part 300 .

Specifically, the locking part 400 is formed to be perpendicular to a surface formed by the '?' Shape of the lock part 400, and the direction thereof may be formed in an inner direction which is a direction toward the body part with respect to the front surface.

To explain the method of fixing the lock portion 300 with the lock fixing portion 400, the hinge coupling portion of the left main body 100 is rotated around the axis so that the lock portion 300 is caught by the latch .

When the locking part 300 is rotated in the same direction as the locking part 300 fixed to the locking part 250 by rotating the locking part 400 about the hinged part with the locking part 300, The hook 450 is engaged with the fixing post 251 of the groove of the locking part 250 so that the locking part 300 can be fixed in two so that the locking part 300 is not opened. .

Next, the handle 500 will be described.

The handle 500 may be installed symmetrically on the upper surface of the left body 100 and the upper surface of the right body 200, respectively. The grip part 500 is for pressing the force to lock the drilling pipe elevator clamping device by the operator, holding the handle of the left main body part 100 and the handle of the right main body part 200 with both hands, So that the left and right main body parts 100 and 200 can be joined and separated from each other.

The handle 500 may be formed to be inclined downward by 10 to 15 degrees from the upper surface of the handle 500. This is an angle at which the operator can naturally grip the handle without excessive bending of the wrist, (400) does not generate interference with the rotation about the hinge axis for fixing the left and right body parts (100, 200).

The grip portion 500 may have a plurality of surface protrusions 510 formed on its surface for preventing slipping. In detail, the method of forming the surface protrusions 510 at random from the portion where the handle 500 is coupled to the body to the detachment preventing portion 550 of the handle described later, or a method of forming the plurality of surface protrusions 510 at random, Various non-slip treatments such as a method of engraving on the surface may be possible.

In order to prevent the gripped hands of the operator from approaching the body, a side surface of the handle 500 in the direction close to the left and right side bodies 100, (530) may be installed.

The free end of the handle 500 is provided with a spherical separation preventing portion 550 which is larger than the width or diameter of the handle 500 installed to prevent the hand of the worker from being separated from the handle 500 .

Finally, the auxiliary locking portion 600 will be described.

The auxiliary locking portion 600 may include a body portion 610, a vertical supporting portion 630, a horizontal supporting portion 650, and an elastic body 670.

The trunk portion 610 is provided to penetrate through the cradle 270 installed on the upper surface of the right body portion 200 to support the entirety of the auxiliary locking portion 600. The body portion 610 is a cylindrical structure, and a vertical support portion 630, which will be described later, can be inserted therein.

The upper portion of the body portion 610 may have an oblique shape so as to be inclined with respect to the upper surface of the body portion 610. In other words, the body portion 610 is formed so as to be inclined with respect to a cylindrical axis which is a shape of the body portion 610, so that one side of the body portion 610 has an upwardly pointed shape and has an inclined surface along the side surface of the body portion 610 .

A vertically recessed engagement groove 611 may be formed on the uppermost portion of the body portion 610. The coupling groove 611 serves to fix the auxiliary locking part 600 so that the auxiliary locking part 600 does not rotate when the auxiliary locking part 600 is inserted into the corresponding position by inserting the horizontal supporting part 650 to be described later.

Inside the body 610, an upper disk 613 formed in a horizontal direction perpendicular to the axis of the body 610 and having a hole through which the vertical support 630 penetrates may be fixedly formed. Since the upper disc portion 613 includes the elastic body 670 between the lower disc portion 631 of the vertical supporting portion 630 to be described later, the locking and unlocking of the auxiliary locking portion 600 can be easily performed by the elastic body 670 And can serve as a support plate to be formed.

The vertical support portion 630 may be installed to be inserted into the cylindrical body portion 610. The vertical support portion 630 preferably has a cylindrical shape and a lower disc portion 631 formed in a horizontal direction below the upper disc portion 613 when engaged with the body portion 610 is supported by a vertical support portion 630 As shown in Fig.

An elastic body 670 may be provided between the upper disc portion 613 and the lower disc portion 631. When the vertical supporting portion 630 is moved upward by an external force, When the external force is removed, the vertical support portion 630 can be lowered by pressing the lower disc portion 631 downward by the elastic force from the upper disc portion 613. The elastic body 670 may be any material having elasticity such as a spring or rubber.

A horizontal support portion 650 may be formed at an upper end of the vertical support portion 630 in a horizontal direction. The horizontal support portion 650 serves as a handle for the user to perform the locking and unlocking operations using the auxiliary locking portion 600 and is preferably formed on the uppermost side of the upper portion of the body portion 610 The auxiliary locking portion 600 may be inserted into the coupling groove 611 to fix the position of the auxiliary locking portion 600.

A description will be made of a method of securing the lock portion 300 by the auxiliary lock portion 600 formed of the body portion 610, the vertical support portion 630 and the horizontal support portion 650 described above.

First, when the drilling pipe is positioned at the center of the drilling pipe elevator clamping device, the operator grasps the handle 500 to contact the left body 100 and the right body 200 to thereby clamp the drilling pipe elevator clamping device Closing.

Next, the locking part 300 is rotated about the hinge shaft coupled to the left body part 100 to be engaged with the locking part 250 formed on the right side body part 200, Thereby fixing the left body 100 and the right body 200. [

Next, the lock fixing part 400 is rotated around a shaft hinged to the lock part 300 to rotate the lock part 300 in the same direction as the lock part 300 is rotated for locking, The hook 450 is fixed to the fixing post 251 of the engaging part 250 by the second fixing.

The auxiliary locking part 600 is used to lock the locking part 300. When the auxiliary locking part 600 is released, the horizontal supporting part 650 is engaged with the coupling part of the body part 610 Since the engaging groove 611 is located at the uppermost position of the body portion 610, the vertical supporting portion 630 is fixed in a raised state . The lower end of the vertical support part 630 is not inserted into the fixing groove 390 on the upper surface of the lock part 300. [

In order to be locked by the auxiliary locking part 600, the vertical supporting part 630 is lowered so that the lower end of the vertical supporting part 630 is inserted into the fixing groove 390 on the upper surface of the locking part 300. Grips it with the handle, lifts it to the upper portion, and releases the horizontal support portion 650 from the engagement groove 611. [ The horizontal support portion 650 is rotated in either the clockwise or counterclockwise direction along with the detachment to the coupling groove 611 so that the elastic support 670 inside the body portion 610, The vertical supporting portion 630 is lowered.

The lower end of the vertical support part 630 is inserted into the fixing groove 390 of the upper surface of the lock part 300 due to the lowering of the vertical support part 630 so that the lock part 300 is inserted into the lock part 300, In the direction perpendicular to the rotation direction.

The release of the auxiliary locking portion 600 may be achieved by rotating the horizontal support portion 650 either clockwise or counterclockwise so that the horizontal support portion 650 is moved along an inclined surface formed from a pointed end face of the body portion 610 The vertical supporting portion 630 is naturally raised and the horizontal supporting portion 650 is coupled to the coupling groove 611 formed at the upper end of the body portion 610 so that the released state is fixed.

The state of the securing and releasing of the auxiliary locking portion 600 is as shown in the front view of Fig.

The above-described embodiments are merely illustrative, and various modifications may be made by those skilled in the art without departing from the scope of the present invention.

Therefore, the true technical protection scope of the present invention should include not only the above embodiments but also various other modified embodiments according to the technical idea of the invention described in the following claims.

100:
110: Left pipe fitting part
130: Left side body hinge knuckle
150: body hinge pin
170: Hinge knuckle for locking part
200: right body portion
210: right pipe seat portion
230: right side body hinge knuckle
250:
251: Fixed column
270: Cradle
300:
310: Locking hinge knuckle
330: Locking hinge pin
350: Hinge spring
370: Hinge hole extension part
390: Fixing groove
400:
410: Locking hinge pin
430: Hinge spring
450: Hook
500: Handle portion
510: surface projection
530:
550:
600: auxiliary lock portion
610:
611: defect home
613: Upper disc portion
630: vertical support
631: Lower disc portion
650: horizontal support
670: elastic body

Claims (5)

A left main body having a left side pipe seating portion formed at its center;
A right side body part hinged on one side of the left side body part and formed on the center of a right side pipe seating part symmetrical with the left side pipe seat part;
A lock portion in which the left body portion and the right body portion are mutually fixed;
A locking part provided outside the locking part and preventing the locking part from being opened;
A handle portion provided on the upper portion of the lock portion and having two cantilevered portions protruding from the same plane as the left side body portion and the upper side surface of the right side body portion; And
And an auxiliary lock portion which is inserted into an upper surface of the right side body and penetrates one side of the upper side of the right side body and the other side is fixed to the upper surface of the lock portion so that the lock portion is not opened in the rotating surface direction. . The method according to claim 1,
Wherein the grip portion is inclined downward by 10 to 15 degrees from a portion coupled to the body with respect to a horizontal plane to a free end thereof, and a plurality of surface projections are formed on the surface to prevent slippage. 3. The method according to any one of claims 1 to 2,
The auxiliary locking portion
A cylindrical body portion vertically penetrating the cradle of the upper body portion;
A vertical support inserted into the body and having a lower end fixed to the upper surface of the lock when the lock is fixed;
And a horizontal support portion bent and installed at an upper end of the vertical support portion. The method of claim 3,
Wherein an elastic body is provided between the vertical support part inserted into the body part and the body part. 5. The method of claim 4,
Wherein a coupling groove (611) is formed in the upper surface of the body to insert the horizontal support portion and fix the auxiliary locking portion in position.

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