KR102087971B1 - Excavator claw safety pin stopper - Google Patents

Abstract

The present invention relates to a safety pin stopper for an excavator clamp, which includes: a housing coupled to an excavator arm, and provided with a safety pin fastening guide recessed from the outer side to the inner side to form a length for a safety pin of an excavator clamp to be inserted and detached; a hook having a rotation pin coupled to the housing at the center, and fixing/releasing the safety pin inserted along the fastening guide while rotating; and a pressure unit provided in the housing vertically from the top, and pressing the hook downward.

Description

Excavator claw safety pin stopper

The present invention relates to an excavator pincer safety pin stopper, and more particularly, to an excavator arm, an excavator pincer safety pin provided on an excavator arm for stably fixing the pincers provided in the excavator and preventing the pincers from falling suddenly. It's about a stopper.

In general, an excavator is a construction machinery equipment mainly for digging and cutting the ground, such as land and soil, and is a device that allows various works such as civil engineering projects, roads, and sewer works.

In addition, the construction site and civil engineering projects are used to reduce manpower and labor and increase work efficiency.

Excavators used in such construction sites and civil engineering projects are mounted to the inside of the bucket (claw), to transport or construct wood, stone or broken concrete.

However, if the conventional tongs for excavators to work using only the bucket (bucket) portion of the excavator according to the work process or conditions, the work efficiency is deteriorated because it has to go through a cumbersome process to dismantle the tongs As a result, the work consumption time is also increasing, and even if you try to work using only the bucket while maintaining the tongs, it may be difficult to secure the field of view of the worker.

In order to solve this problem, the conventional claw fixing device for excavators, when fixing the claws, by using the hydraulic cylinder provided on the excavator to pull the claws to the arm, the support directly hangs the support to the operator, and then In order to prevent the support from being separated from the locking hole, the pin can be selectively fixed by inserting and fixing a pin through the fastening hole of the bracket.

However, such a conventional claw fixing device for excavators is because the operation to hang the support to the hanger is made by a manual operation operator to operate the excavator to support the work, the pin to fix the hanger also excavator In addition to manual insertion by the operator, the pin must be manually pulled out and reinserted even when releasing the fixing of the claws, resulting in deterioration of work efficiency and cumbersome problems.

Therefore, in the art, research and development of a safety device for fixing the claws when not using the claws, as well as the release of the claws when the claws are used are automatically performed without the manual work of the operator are required.

The present invention is to solve the above problems, the operator does not directly fix the pliers, by providing a claw safety pin stopper provided on the arm of the excavator, the hand can increase the convenience and efficiency of the worker's work It is an object to provide a rail assembly.

Excavator pliers safety pin stopper according to an embodiment of the present invention for solving the above problems, is coupled to the excavator arm, the safety pin fastening guide to form a length so that the safety pin of the excavator claws can be inserted in the inward direction from the side outside. A housing; A hook having a rotation pin coupled to the housing at a center thereof to fix / release the safety pin inserted along the fastening guide while rotating; It is provided in the housing in the vertical direction from the top, it may include a pressure portion for pressing the hook downward.

Here, the hook is pushed in accordance with the insertion of the pressing surface and the safety pin under pressure by the pressure unit to rotate the hook, when the fixing pin is fixed to the fixing surface formed to receive the safety pin to prevent separation. And the pressing surface includes: a first convex portion and a first concave portion extending from the first convex portion; A second convex portion extending from the first concave portion; A second recess extending from the second convex portion; And a third convex portion extending from the second concave portion, wherein the pressure portion presses the first concave portion when the excavator claw safety pin is released, and the pressure portion presses the second concave portion when the excavator claw safety pin is fixed. Is formed.

The pressure unit may further include a pressure bolt inserted vertically from an upper end of the housing; A pressure spring provided at an end of the pressure bolt; It may include a ball provided at the end of the pressure spring.

The pressure unit may further include a pressure bolt inserted vertically from an upper end of the housing; A pressure spring provided at an end of the pressure bolt; A roller support frame provided at an end of the pressure spring; And a guide housing coupled to the roller support frame to surround the roller and the end of the pressure bolt, a pressure spring, and a part of the roller support frame, wherein one side of the support frame is guided downward. A vertical movement guide may be provided to form a length vertically, and a guide groove having a vertical length to move along the vertical movement guide may be provided on the inner surface of the guide housing.

The hook may further include guide rails protruding from both sides along the length of the pressing surface to prevent the pressure portion from slipping away from the pressing surface of the hook when the hook is rotated.

In addition, the roller and the hook may each form a gear tooth on the surface thereof, and may be engaged with each other to rotate.

In addition, the hook and the housing, while forming a non-slip member on the surface that the hook and the housing abuts, the non-slip member may be made of a rubber plate formed with a plurality of protrusions protruding.

In addition, the excavator claw safety pin stopper may further include an impact prevention damper provided on the outer side of the housing to prevent a collision of the claw and the housing in the side portion in which the excavator claw is inserted.

Excavator tongs safety pin stopper according to an embodiment of the present invention, by lifting the excavator tongs with a hydraulic cylinder, the operator does not manually fasten the support to the locking portion, by fixing the safety pins provided in the tongs to the excavator tongs safety pin stopper In addition, there is an effect that can increase the work efficiency of the worker.

In addition, since the excavator claw safety pin stopper according to an embodiment of the present invention is smoothly and smoothly operated by a ball or a roller, there is an effect of maintaining excellent durability.

In addition, the excavator claw safety pin stopper according to an embodiment of the present invention is provided with a pressure bolt to allow the operator to flexibly adjust the tension, there is an effect of increasing the reliability of safety.

In addition, the excavator claw safety pin stopper according to an embodiment of the present invention is provided with a non-slip member on the inner surface of the hook and the housing, and the fixed claws to prevent falling by gravity, thereby increasing the safety.

1 is an exemplary view of an excavator claw safety pin stopper.
2 and 2 is a partial cutaway operation perspective view of the excavator claw safety pin stopper according to an embodiment of the present invention having a ball in the pressure portion.
3 is a partial cutaway view of an excavator claw safety pin stopper according to an embodiment of the present invention having a roller support frame, a roller, and an insertion guide housing in the pressure part.
Figure 4 is a partial cutaway operation perspective view of the excavator claw safety pin stopper according to an embodiment of the present invention having a roller support frame, a roller, an insertion guide housing in the pressure portion;
5 is a perspective view of a part of an excavator claw safety pin stopper according to an embodiment of the present invention including a guide rail.
6 is a partial cutaway view of an excavator claw safety pin stopper according to an embodiment of the present invention for forming gear teeth on the surfaces of rollers and hooks.
7 is a partial cutaway view of an excavator safety pin stopper according to an embodiment of the present invention having an anti-slip member on the abutting surface of the hook and the housing.
8 is an exemplary view of an excavator safety pin stopper according to an embodiment of the present invention further includes an impact prevention damper provided on an outer side of the side portion into which the excavator claw is inserted.

Hereinafter, the description of the present invention with reference to the drawings is not limited to the specific embodiments, various changes may be made and various embodiments may be provided. In addition, the contents described below should be understood to include all transformations, equivalents, and substitutes included in the spirit and technical scope of the present invention.

In the following description, terms such as “first” and “second” are terms used to describe various components, and are not limited in themselves, and are used only for distinguishing one component from other components.

Like reference numerals used throughout the present specification refer to like elements.

As used herein, the singular forms "a", "an" and "the" include plural forms unless the context clearly indicates otherwise. In addition, the terms "comprise", "comprise" or "having" described below are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist. It is to be understood that it does not exclude in advance the possibility of the presence or the addition of one or more other features or numbers, steps, actions, components, parts or combinations thereof.

Hereinafter, an excavator claw safety pin stopper according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 8.

1 is an exemplary view of an excavator claw safety pin stopper, Figures 2 (a) and (b) is a partial cutaway operation perspective view of an excavator claw safety pin stopper according to an embodiment of the present invention having a ball in the pressure portion, Figure 3 is a pressure Partial cutaway view of an excavator claw safety pin stopper according to an embodiment of the present invention having a roller support frame, a roller, and an insertion guide housing in a portion, FIG. 4 is provided with a roller support frame, a roller, and an insertion guide housing in the pressure unit 300. Partial cutaway operation perspective view of an excavator nipper safety pin stopper according to an embodiment of the present invention, Figure 5 is a perspective view of a part of the excavator nipper safety pin stopper according to an embodiment of the present invention including a guide rail, Figure 6 is a surface of the roller and hook Fig. 7 is a partial cutaway view of an excavator claw safety pin stopper according to an embodiment of the present invention for forming a gear tooth. FIG. 7 is a bone provided with a non-slip member on an abutting surface of a hook and a housing. Partial cutaway view of an excavator safety pin stopper according to an embodiment of the present invention, Figure 8 is an exemplary view of an excavator safety pin stopper according to an embodiment of the present invention further includes an impact prevention damper provided on the outside of the side portion in which the excavator claws are inserted.

First, referring to FIG. 1, the excavator pincer safety pin stopper according to the embodiment of the present invention may include a housing 100, a hook 200, and a pressure unit 300.

Specifically, the housing 100 may include a safety pin fastening guide 110 which is recessed in the longitudinal direction from the outside of the side so that the safety pin of the claws can be inserted.

This is to ensure that the safety pins provided on the claws can be inserted and removed while maintaining a stable track along the fastening guide 110 provided in the housing 100.

For example, in order to fix a conventional excavator claw, the fixed pin insertion hole formed in the claw to match the fixed pin insertion hole formed in the excavator arm, and then fixed by inserting the iron piles or pins to fix the claw claws Each time a worker has a problem that it is cumbersome to have to manually insert / release the iron pile or pin.

Accordingly, the present invention eliminates the above troublesome when fixing the excavator claws, the operator can be fixed to the claws only by the operation of the excavator instead of directly plugging the iron pile or pin into the fixed pin insertion hole (102). Excavator Nipper Safety Pin Stopper was developed.

In addition, the housing 100 may be formed in a shape in which one side thereof corresponds to one surface of the excavator arm. This is for close contact with the excavator arm so that play does not occur.

However, since this is only a preferred embodiment of the present invention, the present invention is not limited thereto and may be formed of a housing 100 having an elliptical shape or a circular shape.

In addition, the housing 100 may include a fixing pin insertion hole 120 having a shape corresponding to the fixing hole formed in the tongs of the excavator.

In order to more firmly fix the clamping claw fixed by the safety pin stopper of the present invention, it is provided with a fixing pin insertion hole 120 of the shape corresponding to the fixing hole provided in the claw in the housing 100 to fix the pin (not even In this case, the safety pin stopper of the present invention to fix the forefinger, and at the same time, according to the needs of the operator, it is possible to insert a conventional iron pile or pin into the fixing pin insertion hole (120). To do this.

In addition, provided with a rotary pin 210 coupled to the housing 100 in the center, and includes a hook 200 for fixing / releasing the safety pin (not shown) inserted along the fastening guide 110 while rotating. do.

In addition, the housing 100 is provided in the vertical direction from the top, and includes a pressure unit 300 for pressing the hook 200 downward.

Meanwhile, referring to FIG. 2, the hook 200 may include a rotation pin 210, a pressing surface 220, and a fixing surface 230, and the pressure unit 300 may include a pressure bolt 310 and a pressure. It may include a spring 320, a ball 330.

Here, the rotation pin 210 is provided in the housing 100, the hook 200 is provided in the center of the hook 200 to be rotatable.

Also, The pressing surface 220 provided in the hook 200 includes a first convex portion 221, a first concave portion 222 extending from the first convex portion 221, and the first concave portion 222. It consists of a second convex portion 223 extending from, a second concave portion 224 extending from the second convex portion 223, and a third convex portion 225 extending from the second concave portion 224. .

Therefore, when the excavator claw safety pin is released, the pressure part 300 presses the first concave portion 222 formed on the pressing surface 220 of the hook 200, and the pressure portion when the excavator claw safety pin is fixed. 300 is formed to press the second recessed portion 224.

That is, the safety pin (not shown) provided in the excavator forefinger is inserted inward along the fastening guide 110 formed in the housing 100 in a state of being caught by the fixing surface 230 of the hook 200. The hook 200 is provided with a ball 330 on the pressing surface 220 to move from the first concave portion 222 to the second concave portion 224 in a state in which the force is applied vertically. When the 330 reaches the second recess 224, the fixing is performed.

 Meanwhile, when the excavator claw safety pin is released again in a fixed state, the ball 330 that presses the second recess 224 again moves to the first recess 222 along the pressing surface 220. The pincer safety pin that was hanging on the fixing surface 230 is to be separated.

In addition, the fixing surface 230, when the safety pin comes along the fastening guide 110 provided in the housing 100, is formed in a corresponding shape so as to be able to engage with the claw safety pin, thereby the claw safety pin The hook 200 is pushed in accordance with insertion and removal, and when the safety pin is fixed, the hook 200 is accommodated to prevent the hook 200 from being shaken or separated.

In addition, the pressure bolt 310 is inserted vertically at the top of the housing 100, in order to adjust the tension of the pressure spring 320.

In addition, the pressure spring 320 is provided at the end of the pressure bolt 310.

Accordingly, in order to adjust the tension of the pressure spring 320 provided in the excavator pin claw safety pin stopper, the user can tighten the pressure bolt 310 with a spanner or wrench to adjust the tension.

When the operator is required to maintain the excavator clamp claw more firmly when working on rough terrain or unstable ground, the pressure portion for directly manipulating the pressure bolt 310 to press the hook 200. It is provided to adjust the tension of the 300.

In addition, the ball 330 is provided at the end of the pressure spring 320.

That is, the tension of the pressure spring 320 is controlled by the pressure bolt 310, the ball 330 is formed in a state of continuously pressing the pressing surface 220, the ball 330 is the pressure spring It is provided in a state rotatable freely at the end of the (320).

Through this, when the safety pin of the excavator claws push the fixed surface 230 provided in the hook 200 in the direction of the fastening guide 110, the hook 200 is rotated, the end of the pressure portion 300 The ball 330 was provided to continuously push the surface of the pressing surface 220 vertically.

3 to 4, the pressure unit 300 includes a pressure bolt 310, a pressure spring 320, a roller support frame 350, a roller 370, and an insertion guide housing 340. can do. In addition, except for the roller support frame 350, the roller 370, the insertion guide housing 340 formed in the above-described pressure unit 300, it may be configured in substantially the same form.

Therefore, hereinafter, description of overlapping configurations will be omitted and only differences will be described.

The insertion guide housing 340 surrounds the roller support frame 350 and has an accommodation groove 341 formed therein so that the roller support frame 350 can perform only vertical movement without rotation. do.

In addition, the roller support frame 350 is characterized by forming a protrusion 351 protruding on one side of the outer wall in a shape corresponding to the receiving groove 341 provided in the insertion guide housing 340.

Therefore, the insertion guide housing 340 is provided to surround the roller support frame 350, the receiving groove 341 provided on the inner wall of the insertion guide housing 340, and the outer wall of the roller support frame 350 Protruding portion formed in the 351 is to be engaged only in the vertical movement state.

In addition, the roller support frame 350 is formed in a cylindrical shape, the roller rotation pin 360 is inserted so that the roller 370 is inserted and rotated at the end.

In addition, the roller 370 is provided at the end of the roller support frame 350, is in close contact with the pressing surface 220 has a feature that rotates in accordance with the rotation of the hook (200).

That is, the tension of the pressure spring 320 is controlled by the pressure bolt 310, the roller 370 is formed in a state of continuously pressing the pressing surface 220, the roller 370 is the roller support frame Rotation is possible at the end of the 350, the roller support frame 350 and the insertion guide housing 340 is provided only in the vertical movement possible state.

Through this, when the safety pin of the excavator forefinger pushes the fixing surface 230 provided on the hook 200 in the direction of the fastening guide 110, the hook 200 is rotated and the pressing surface formed on the hook 200 The roller 370 provided at 220 may continuously push the surface of the pressing surface 220 vertically.

In addition, while the roller 370 and the hook 200 has a constant angle and rotates while pressing the pressing surface 220, the angle between the roller 370 and the hook 200 is generated due to an external or internal impact. Disability can be prevented.

In addition, referring to FIG. 5, the hook 200 may further include a guide rail 240.

In detail, the guide rail 240 protrudes from both sides along the length of the pressing surface 220 formed on the hook 200, or is recessed.

As a result, the pressure part 300 may be prevented from slipping away from the pressing surface 220 of the hook 200 when the hook 200 is rotated.

In addition, referring to FIG. 6, the roller 370 and the hook 200 may form gear teeth 400 on their respective surfaces.

This is to form gear teeth 400 on the surface, respectively, to be engaged with each other to rotate, that is, the gear teeth 400 formed on the surface of the hook 200 and the roller 370 mesh with each other, and accurate power without slipping. Can be passed.

This is because when the excavator forceps safety pin is inserted or removed by pushing or pulling the hook 200, the hook 200 is rotating, but the hook 200 and the roller 370 is empty from the surface of the pressing surface 220 This is to prevent a more smooth and accurate rotation.

In addition, referring to FIG. 7, the hook 200 and the housing 100 may include an anti-slip member 500.

Specifically, the anti-slip member 500 is formed on the surface where the hook 200 and the housing 100 abut each other, thereby preventing the claws of the excavator from being naturally struck by gravity and enabling more solid binding. have.

In addition, the non-slip member 500 may be formed of a rubber plate formed by protruding a plurality of protrusions.

This is because the non-slip member 500 is formed of a rubber plate, so as to have a greater frictional resistance than the conventional rubber plate by forming a rough surface for a more firm fixing.

However, since this is only an embodiment of the present invention, the present invention is not limited thereto and may be formed of an epoxy, a slip sticker, or the like for preventing slipping.

In addition, referring to FIG. 8, the excavator claw safety pin stopper may further include an impact prevention damper 600.

Specifically, the anti-shock damper 600 is provided to protrude from the housing 100 outside to prevent a collision of the claw and the housing 100 in the side portion in which the excavator claw is inserted, accordingly, the excavator claw is in a specific situation In this case, it is possible to prevent damage to the parts provided in the housing 100 or the safety pin stopper of the present invention due to a sudden impact.

In addition, the anti-impact damper 600 may be formed on both sides symmetrically to the excavator claw safety pin stopper, it is preferably provided with two or four symmetrically on both sides.

Here, the shock-resistant damper 600, the damper housing 610, the receiving portion 620 for receiving the frame of the excavator claw, the first spring 630 extending into the damper from the receiving portion 620, The partition plate 650 provided at an end of the first spring 630 is formed of a second spring 640 extending from the partition plate 650.

Meanwhile, the shockproof damper 600 may be formed as a damper using a spring as described above, but may include a damper to mitigate an impact such as a hydraulic damper and a pneumatic damper.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement in other specific forms without changing the technical spirit or essential features of the present invention. I can understand that. Accordingly, the embodiments described above are exemplary in all respects and not restrictive.

100: housing
110: fastening guide
120: fixing pin insertion hole
200: hook
210: rotation pin
220: pressurized surface
221: first convex portion
222: first recessed portion
223: second convex portion
224: second recessed portion
225: third convex portion
230: fixed surface
240: guide rail
300: pressure part
310: pressure bolt
320: pressure spring
330: ball
340: Insertion guide housing
341: accommodation home
350: roller support frame
351: protrusion
360: roller rotation pin
370: roller
400: gear tooth
500: non-slip member
600: Shockproof Damper
610: damper housing
620: accommodating part
630: first spring
640: second spring
650: divider

Claims (8)

A housing having a safety pin coupling guide coupled to the excavator arm and recessed inward from the side to form a length such that the safety pin of the excavator claws can be inserted;
A hook having a rotation pin coupled to the housing at a center thereof to fix / release the safety pin inserted along the fastening guide while rotating;
It is provided in the housing in the vertical direction from the top, and includes a pressure portion for pressing the hook downward,
The hook,
A pressurized surface pressurized by the pressure unit;
The hook is pushed in accordance with the insertion and removal of the safety pin, and when the fixing action of the safety pin includes a fixing surface formed to receive the safety pin to prevent separation,
The pressing surface is,
The first convex portion,
A first concave portion extending from the first convex portion;
A second convex portion extending from the first concave portion;
A second recess extending from the second convex portion;
A third convex portion extending from the second concave portion,
When the excavator claw safety pin is released, the pressure unit presses the first recess,
The excavator claw safety pin stopper, characterized in that the pressure portion is formed to press the second recess when the excavator claw safety pin is fixed.


delete The method of claim 1,
The pressure unit,
A pressure bolt inserted vertically from an upper end of the housing;
A pressure spring provided at an end of the pressure bolt;
It includes a ball provided at the end of the pressure spring,
Excavator claw safety pin stopper, characterized in that the tension of the pressure spring is adjusted by adjusting the position of the pressure bolt.
The method of claim 1,
The pressure unit,
A pressure bolt inserted vertically from an upper end of the housing;
A pressure spring provided at an end of the pressure bolt;
A roller support frame provided at an end of the pressure spring;
A roller which is coupled to the roller support frame and rotates
An insertion guide housing is formed to surround the end of the pressure bolt, the pressure spring and the roller support frame,
One side of the roller support frame is provided with a protrusion vertically formed on one side of the roller support frame so that the roller is guided downward, and an accommodation groove having a vertical length to move along the protrusion is provided on the inner surface of the insertion guide housing.
Excavator claw safety pin stopper, characterized in that the tension of the pressure spring is adjusted by adjusting the position of the pressure bolt.
The method of claim 1,
The hook
Excavator claw safety pin stopper further comprises a guide rail protruding from both sides along the length of the pressing surface to prevent the pressure portion from slipping with the pressing surface of the hook when the hook rotates.
The method of claim 4, wherein
The roller and the hook,
Excavator claw safety pin stopper, characterized in that the gear teeth are formed on each surface, and are engaged with each other to rotate.
The method of claim 1,
The hook and housing,
An anti-slip member is formed on the surface where the hook and the housing are in contact with each other, wherein the non-slip member is made of a rubber plate formed by protruding a plurality of protrusions.
The method of claim 1,
The excavator claw safety pin stopper,
Excavator claw safety pin stopper further comprises an impact damper provided on the outer side of the housing to prevent collision of the claw and the housing in the side portion into which the excavator claw is inserted.

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