KR102338302B1 - Cover opening/closing apparatus of oil-hydraulic coupling block for quick change device - Google Patents

Abstract

The present invention improves the structure of the cover member that opens and closes the connection hole of the vertical type hydraulic coupling device so that the opening and closing operation of the cover member is interlocked according to the movement of the hydraulic coupling block, and, at the same time, the stumbling block during the opening and closing operation of the cover member As the structure is improved to open and close the cover member due to the interference of the interfering protrusion of the return spring and to close the cover member by the restoring force of the return spring, the opening and closing operation of the cover member is facilitated while minimizing design changes, thereby reducing operating noise. It relates to a cover device for a quick change vertical type oil quick coupling whose structure is improved so that it is possible.

Description

Cover device for quick change vertical type oil quick coupling {COVER OPENING/CLOSING APPARATUS OF OIL-HYDRAULIC COUPLING BLOCK FOR QUICK CHANGE DEVICE}

The present invention relates to a cover device for a quick change vertical type oil quick coupling, and in particular, by improving the structure of a cover member for opening and closing a connection hole of a vertical type hydraulic coupling device, the quick coupler body and the rotating housing rotate forward and reverse in the forward and reverse directions In addition to interlocking the opening and closing operation of the cover member according to the operation, the structure is improved to open and close the cover member due to the interference of the locking projection on the connecting rod during the opening and closing operation of the cover member and close the cover member by the restoring force of the return spring. It relates to a quick change vertical type oil quick coupling cover device whose structure is improved so that the opening and closing operation of the cover member can be easily made while minimizing the change and thus the operation noise can be reduced.

In general, in heavy construction and civil engineering equipment such as excavators, work tools such as breakers, buckets, and crushers are used to dig the ground, process soil excavated from the ground, crush rocks, etc., and these work tools are It will be replaced and used according to the contents of the work.

In the conventional device for coupling a work tool, a coupler is coupled with a pair of coupling pins to the tip of the arm of an excavator, a fixed hook is provided on one side of the coupler and a movable hook is rotatably coupled to the other side so that the movable hook is in the coupler. It is configured to be rotated by the operation of the mounted cylinder.

And a fixed pin formed on the upper side of the work mechanism is inserted into the fixed hook and the movable hook so as to be coupled.

Therefore, the coupler coupled to the tip of the arm is brought close to the upper side of the work tool, a fixed pin is inserted into the fixed hook, and another fixed pin is coupled to the movable hook of the other side. The fixing pin is coupled.

However, in the prior art, as a means for operating the movable hook, the hydraulic pressure is supplied to the cylinder inside the coupler, although it is convenient to couple or separate the work tool from the driver's seat by using a cylinder operated by the action of hydraulic pressure. As a hydraulic line is required for this, problems such as complexity of the device and increase in cost were inherent.

To solve the above problems, a quick coupler for an excavator has been developed, and the movable hook of the quick coupler for an excavator according to the prior art includes a hinge part coupled to a hinge pin coupled to a support plate installed at intervals, and on the rear side of the movable hook A safety pin is inserted and installed, and the locking bolt is detachably fastened to the front side by penetrating the locking plate to the boss coupled to the front of the movable hook.

As a prior art related to the existing rotary quick coupler, as disclosed in Korean Patent Registration No. 10-1783958 "Rotational quick coupler" (registration date: 2017.09.26), it is installed on the arm of the excavator and the connecting bar and the connecting plate are A main body provided, a power transmission unit installed on the connection plate to convert and transmit the traveling direction of power, a driving unit for providing power to the power transmission unit, and a fixing hook installed in the power transmission unit and coupled to an attachment A rotation block provided with, a movable hook rotatably installed on the rotation shaft of the rotation block, a driving cylinder installed on the rotation block and rotating the movable hook to engage and engage the attachment, the power transmission unit and the rotation block It includes an anti-wear part for preventing the friction, and a buffer part provided on the main body to prevent the gap between the main body and the power transmission unit and the distance between the main body and the rotating block from being spaced apart, the The power transmission unit includes a gear member installed on the connection plate, and a gear shaft geared to the gear member to transmit the power of the driving unit to the gear member.

The wear prevention unit includes a protrusion that protrudes from the rotation plate and supports the gear member, and a slip member that is installed on the protrusion and prevents the protrusion and the gear member from contacting and the gear member is slidably supported.

The slip member is made of a ceramic material or synthetic resin material capable of preventing abrasion due to friction, and is coupled to the upper surface of the protrusion to support the lower surface of the gear member to slip.

However, the existing quick coupler device forms a flow path using a hydraulic coupling block without a hydraulic hose between the quick coupler body and the rotating housing, or between the quick coupler body and the adapter body, and the rotating housing and the adapter body. As a prior art for the related art, as disclosed in Japanese Patent Application Laid-Open No. 2009-537711 "Quick Exchange Device" (published on October 29, 2009), a quick coupler mounted on the machine tool side, and a lock coupled to the quick coupler and a mechanism A quick change device having an adapter connected to the and a hydraulic coupling for establishing a hydraulic connection between a hydraulic system in the machine tool and a hydraulic system of the corresponding mechanism, wherein the hydraulic coupling includes a first coupling member and a second couple These two coupling members consisting of a ring member are held together in an operative position and the first coupling member and the second coupling member cooperating with at least a mechanical retaining means formed separately from the locking device of the quick change device. There is a quick changer characterized in that in the quick changer a corresponding coupling member is held in an operative position by frictional engagement by a corresponding mechanical retaining means.

By the way, in the existing oil quick device, connection holes for forming oil passages corresponding to each other are formed in the hydraulic coupling blocks corresponding to each other.

The hydraulic coupling block in which the connection hole is formed interconnects the quick coupler body and the rotating housing, or the rotating housing and the adapter body, or, when the rotating housing is omitted, hydraulic pressure in the process of directly connecting the quick coupler body and the adapter body A horizontal type and a vertical type of connection means are provided according to the movement method for connecting the coupling blocks.

The horizontal type connection means is in close contact with or spaced apart from the second coupling member in the form of a hydraulic coupling block in the form of a hydraulic coupling block in a horizontal and vertical movement method using an actuator such as a cylinder. The vertical type of connection means uses an actuator such as a cylinder to attach the second coupling member to the first coupling member of the fixed type in a vertical vertical movement method or to space it apart. have.

In the case of the existing hydraulic coupling block, since the connection hole is exposed to the outside in a state of being spaced apart from each other, there is a risk that foreign substances such as dust or sand and gravel may enter the connection hole, so a separate cover for opening and closing the connection hole is provided. have.

The cover is manually opened and closed by the operator, but there is a risk of loss of the cover, there is a cumbersome opening and closing operation.

Hereinafter, in the present invention, a cover device for a quick change vertical type oil quick coupling provided with a vertical type connection means will be discussed.

Korean Patent Registration No. 10-1783958 "Rotating Quick Coupler" (Registration Date: 2017.09.26) Japanese Laid-Open Patent Publication No. 2009-537711 "Quick Exchange Device" (published on October 29, 2009)

The present invention was created to solve the above problems in view of the various problems, and its purpose is to improve the structure of the cover member that opens and closes the connection hole of the vertical type hydraulic coupling device, so that the quick coupler body and the rotating housing are forward and reversed. The opening and closing operation of the cover member is interlocked according to the rotational direction, and the cover member is opened and closed by the interference of the locking projection on the connecting rod during the opening and closing operation of the cover member and the cover member is closed by the restoring force of the return spring. Accordingly, an object of the present invention is to provide a cover device for a quick change vertical type oil quick coupling whose structure is improved so that the opening and closing operation of the cover member can be easily made and the operation noise can be reduced accordingly while minimizing the design change.

The present invention for achieving the above object is connected to the excavator and a quick coupler body provided with a first coupling block in the lower part of the side; A second coupling plate is provided on the lower side of the quick coupler body and coupled to the first coupling block while in surface contact with the first coupling block when the quick coupler body is rotated on one upper side to selectively connect the oil flow path. a rotating housing provided with a third coupling block in which a connection hole is opened in the direction; A fourth coupling block disposed on the lower side of the rotating housing and coupled to the third coupling block when the rotating housing is rotated on one upper side to selectively connect an oil flow path is provided, and an attachment is coupled to the lower portion an adapter body; a cover member provided in each of the first and third coupling blocks and provided with a cover part rotatably toward a lower surface or a side surface of the hinge shaft; and a cover opening and closing means for interlocking the opening and closing operation of the cover member when the quick coupler body or rotating housing is rotated for coupling of the first and second coupling blocks or coupling of the third and fourth coupling blocks. characterized by one.

The cover opening and closing means is formed to protrude from the upper portion of one side of the rotating housing and the upper portion of the adapter body, and each of the locking projections formed to interfere with the connecting rod of the cover member when the quick coupler body and the rotating housing rotate, and the quick coupler A first guide groove formed on one side of the lower portion of the main body and having an opening at the bottom so that the locking protrusion formed on the rotating housing passes when the quick coupler main body is rotated; It is provided with a second guide groove having an open lower portion so that the locking protrusion formed on the adapter body passes therethrough, and a restoring spring wound around the hinge shaft to elastically support the cover member in a direction in which the cover is closed.

The cover member is further provided with a cushion member for reducing contact noise on one side of the connecting rod in contact with the locking projection.

The cover member includes a cover portion disposed to block external foreign substances by opening and closing the lower portions of the connection holes of the first and third coupling blocks, and the cover portion is rotatably connected about the hinge shaft, and the first and second couplings It is composed of a connecting rod that interferes with the stumbling block when the block is coupled and the third and fourth coupling blocks are coupled.

Another characteristic element of the present invention is a quick coupler body connected to the excavator and provided with a first coupling block in the lower portion of one side; an adapter body disposed on a lower side of the quick coupler body and provided with a fourth coupling block coupled to the first coupling block on one side to selectively connect an oil flow path and an attachment coupled thereto; a cover member provided on the first coupling block and rotatably provided toward a lower surface or a side surface of the hinge shaft; and cover opening and closing means for interlocking the opening and closing operation of the cover member when the quick coupler body is rotated for oil quick coupling of the first and fourth coupling blocks; A first guide groove formed on one side of the upper portion of the adapter body so as to interfere with the connecting rod of the cover member, and a first guide groove formed on one side of the lower portion of the quick coupler body and having an opening at the bottom so that the locking projection passes when the quick coupler body rotates. and a restoration spring wound around the hinge shaft to elastically support the cover member in a direction in which the cover member closes.

The present invention provides a function to block external foreign substances in normal times by making the opening and closing operation of the cover member to block the external foreign substances by covering the inlet of the connection hole of the first and third coupling blocks in connection with the rotation operation of the quick coupler body and the rotating housing. In addition to being able to perform, it is possible to automatically open the cover part without the need for the operator to open the cover member during the coupling operation, thereby having a useful effect that can improve the convenience of the operator.

The present invention has a useful advantage that the opening and closing operation of the cover member is made by a simple operation in which the connecting rod and the locking protrusion interfere during the forward rotation operation of each of the quick coupler body and the rotating housing, so maintenance is easy and manufacturing costs can be reduced. .

In addition, as the cushion member is further provided on one side of the connecting rod of the present invention, it is possible to reduce the contact impact with the locking protrusion and to reduce the operating noise generated during the opening operation of the cover member.

1 is an external perspective view showing a quick change equipment to which a cover device for a quick change vertical type oil quick coupling according to the present invention is applied.
Figure 2 is a front view schematically showing the exploded state of Figure 1;
Figure 3 is a perspective view showing a cover member of the present invention.
Figure 4 is a bottom perspective view showing the present invention the cover member is closed in a normal state.
Figure 5a is a view showing a state before the hydraulic coupling member of the present invention is coupled, Figures 5b and 5c is a state diagram schematically showing the state before and after the locking protrusion of the cover opening and closing means of the present invention is bent by the locking protrusion .
6 is a view showing a modified example of the present invention cover member.
7 is a block diagram showing another embodiment of the quick change vertical type oil quick coupling cover device according to the present invention.

In describing the present invention, if it is determined that a detailed description of a related known technology or configuration may unnecessarily obscure the gist of the present invention, a detailed description thereof will be omitted. And the terms to be described later are terms defined in consideration of functions in the present invention, and may vary according to the intention or custom of the user. Therefore, the definition should be made based on the content throughout this specification. In addition, 'including' a certain component means that other components may be further included, rather than excluding other components, unless otherwise stated.

An embodiment of the cover device for quick change vertical type oil quick coupling according to the present invention will be described with reference to FIGS. 1 to 4 , the quick coupler body connected to the excavator and provided with the first coupling block 410 in the lower part of one side (100) and; A second that is disposed on the lower side of the quick coupler body 100 and is coupled while surface contacting the first coupling block 410 when the quick coupler body 100 is rotated on one upper side to selectively connect the oil flow path A rotating housing 200 provided with a coupling block 420 and provided with a third coupling block 430 having a connection hole 405 opened in a downward direction at one lower portion thereof; A fourth coupling block disposed on the lower side of the rotating housing 200 and coupled to the third coupling block 430 when the rotating housing 200 is rotated on one upper side to selectively connect an oil flow path an adapter body 300 provided with 440 and an attachment (not shown) coupled thereto; a cover member 500 provided on the first and third coupling blocks 410 and 430, respectively, and having a cover portion 530 rotatably provided toward a lower surface or a side surface of the hinge shaft 510; and the cover member when the quick coupler body 100 or the rotating housing 200 is rotated for the coupling of the first and second coupling blocks 410 and 420 or the coupling of the third and fourth coupling blocks 430 and 440. Cover opening and closing means (600) for interlocking the opening and closing operation of the (500); is made including.

1 and 2, the quick coupler body 100 is provided with a fixed hook formed on the other side and a movable hook that is operated forward and backward by a cylinder on one side.

The rotating housing 200 has an outer ring member (not shown) that is coupled to the outside so that the driving motor of the driving unit is accommodated and is interlocked and rotated by the driving rotation force of the driving unit, and the outer ring member is supported inside the outer ring member. An inner ring member (not shown) is provided.

That is, the rotating housing 200 is opened up and down, and the inner ring member and the outer ring member are accommodated therein.

The inner ring member is bolted to the rotating housing 200 .

The first coupling block 410 is disposed on one side of the lower portion of the quick coupler body 100, and has a structure in which a bent connection hole 405 is formed to supply oil delivered from the excavator therein.

The second coupling block 420 is disposed on one side of the upper portion of the rotating housing 200 , and a bent connection hole 405 is formed therein to supply oil transferred from the quick coupler body 100 . has

The third coupling block 430 is disposed on one side of the lower portion of the rotating housing 200 , and is bent so as to supply the oil delivered from the quick coupler body 100 therein to the adapter body 300 side. It has a structure in which the ball 405 is formed.

The fourth coupling block 440 is disposed on one side of the adapter body 300 .

As shown in Figure 3, the cover member 500 is a cover portion 530 disposed to block external foreign matter by opening and closing the lower portion of the connection hole 405 of the first and third coupling blocks 410 and 430, and, The cover part 530 is rotatably connected to the hinge shaft 510 as a center, and the first and second coupling blocks 410 and 420 are coupled and the third and third coupling blocks 430 and 440 are coupled to each other. It is composed of a connecting rod 520 that interferes with the 610 .

The cover part 530 is formed in a circular arc shape and rotates in an arc motion type around the hinge shaft 510, and the connection hole ( 405) has a structure to cover it.

As shown in FIGS. 3 and 4 , the cover opening and closing means 600 is formed to protrude from the upper portion of one side of the rotating housing 200 and the upper portion of one side of the adapter body 300 , and the quick coupler body 100 . And the locking projections 610 respectively formed to interfere with the connecting rod 520 of the cover member 500 when the rotating housing 200 rotates, and the quick coupler body 100 is formed on one side of the lower portion and the quick coupler body a first guide groove 615 having an opening at the bottom so that the locking protrusion 610 formed on the rotating housing 200 passes through during rotation of the rotating housing 200; The second guide groove 625, the lower part of which is opened so that the locking protrusion 610 formed on the adapter body 300 passes through when rotating, and the hinge shaft 510 are wound around the connecting rod 520 and the locking protrusion, respectively. When the interference of 610 is released, the cover part 530 is restored to its original position, and the cover part 530 is composed of a restoration spring 630 for elastically supporting the cover member 500 in the closing direction.

The first and second guide grooves 615 and 625 are provided with the quick coupler body 100 and the rotating housing so as not to interfere with each of the locking protrusions 610 when the quick coupler body 100 and the rotating housing 200 rotate. It is formed in an arc shape corresponding to the rotation path of 200 .

The locking protrusion 610 protrudes in the form of a pin and is provided inside the rotating housing 200 and inside the adapter body 300 , respectively.

The restoration spring 630 is wound around the hinge shaft 510 and provides an elastic force for returning to the original state after the cover member 500 is opened.

The operation of the cover opening means is, as shown in Figure 5a, the first and second coupling blocks (410, 420) before the rotation of the quick coupler body 100 for the coupling of the first and second coupling blocks (410, 420). These are positioned spaced apart from each other, and when the quick coupler body 100 is rotated in the forward direction, as shown in FIG. 5b , the quick coupler body 100 is rotated while entering the inside of the rotating housing 200 , and the The locking protrusion 610 formed on the rotating housing 200 slides through in the first guide groove 615 , and the connecting rod 520 of the cover member 500 is formed on the rotating housing 200 . While in contact with the group 610, the cover part 530 is rotated so that the connection hole of the first coupling block 410 is opened.

Thereafter, as in FIG. 5C , the cover member 500 disposed on the first coupling block 410 is rotated in the lateral direction (clockwise direction) about the hinge shaft 510, and the The connection hole 405 of the first coupling block 410 is opened.

For this reason, the hydraulic pressure of the oil supplied from the excavator is rotated through the quick coupler body 100 while the first coupling block 410 and the connection hole 405 of the second coupling block 420 are in surface contact to communicate. It forms a flow path that is transmitted to the inside of the housing 200 .

On the other hand, even when the rotating housing 200 is rotated in the forward direction for coupling the third and fourth coupling blocks 430 and 440, as shown in FIG. 5B, the locking protrusion 610 formed on the adapter body 300 is 2 It slides through the guide groove 625 , and the connecting rod 520 of the cover member 500 provided in the third coupling block 430 is formed on the inside of the adapter body 300 with a locking protrusion 610 . ), the cover part 530 is rotated so that the connection hole 405 of the third coupling block 430 is opened.

Thereafter, as shown in FIG. 5C , the cover member 500 disposed on the third coupling block 430 is rotated in the lateral direction (clockwise direction) about the hinge shaft 510, and the The connection hole 405 of the third coupling block 410 is opened.

For this reason, the hydraulic pressure of the oil supplied from the rotating housing 200 while making surface contact so that the connection hole 405 of the third coupling block 430 and the fourth coupling block 440 communicates with each other is applied to the adapter body 300 . ) to form a flow path.

Accordingly, when connecting the quick coupler body 100 and the rotating housing 200 and each connecting operation of the rotating housing 200 and the adapter body 300, the hydraulic coupling block is not connected through a hydraulic hose. Since the flow path can be formed by a coupling method, it has the advantage of quickly changing the attachment.

Unexplained reference numerals "810" and "820" indicate a tilting cylinder that tilts and rotates the lower part of the rotator housing left and right.

6 is a view showing a modified example of the cover member 500 of the present invention, wherein the cover member 500 is a cushion member ( 555) is further provided.

The cushion member 555 may adopt a material such as rubber having its own elasticity.

On the other hand, when disassembling the quick coupler body 100 and the rotating housing 200 and disassembling the rotating housing 200 and the adapter body 300, first, the rotating housing 200 rotates in the reverse direction. While being separated from the adapter body 300, the interference of the connecting rod 520 between the locking protrusion 610 formed on the adapter body 300 and the cover member disposed on the third coupling block 430 is released, and a restoration spring ( The cover part 530 is rotated in the downward direction (the direction opposite to the moving direction of the clockwise hand) by the restoring elastic force of the 630 , thereby blocking the connection hole 405 of the third coupling block 430 .

Afterwards, when the quick coupler body 100 is rotated in the reverse direction, the quick coupler body 100 and the rotating housing 200 are separated, and the locking protrusion 610 formed on the rotating housing 200 and the first couple As the interference of the connecting rod 520 of the cover member 500 disposed in the ring block 410 is canceled, the cover part 530 rotates in the downward direction (the direction opposite to the moving direction of the clockwise hand) by the restoring elastic force of the restoring spring. to block the connection hole 405 of the first coupling block 410 .

Accordingly, the cover portion 530 of the cover member 500 of the present invention covers the inlet of the connection hole 405 of the first and third coupling blocks to block foreign substances from flowing into the connection hole 405 . .

Therefore, in the present invention, the opening and closing operation of the cover member 500 that covers the inlet of the connection hole 405 of the first and third coupling blocks 410 and 430 to block external foreign substances is performed with the quick coupler body 100 and the rotating housing ( 200), it is possible to perform the function of blocking external foreign substances in normal times, and also automatically opens the cover part 530 without the need for the operator to open the cover member 500 during the coupling operation. It has a useful effect that can improve the convenience of the operator.

In the present invention, the opening and closing operation of the cover member 500 is made by a simple operation in which the connecting rod 520 and the locking projection 610 interfere during the forward rotation operation of the quick coupler body 100 and the rotating housing 200. It has a useful advantage of being easy to repair and reducing the manufacturing cost.

In addition, as the cushion member 555 is further provided on one side of the connecting rod 520 of the present invention, the contact impact with the locking protrusion 610 is reduced and the operation noise generated during the opening operation of the cover member 500 can be reduced. have an advantage

7 is a view showing another embodiment of the present invention quick change vertical type oil quick coupling cover device, connected to the excavator and a quick coupler body 100 provided with a first coupling block 410 on one lower side; A fourth coupling block 440 disposed on the lower side of the quick coupler body 100 and coupled to the first coupling block 410 on one side to selectively connect an oil flow path is provided, and the attachment is coupled to the lower portion an adapter body 300 that becomes; a cover member 500 provided on the first coupling block 410 and rotatably provided toward a lower surface or a side surface of the hinge shaft 510; and a cover opening and closing means 600 for interlocking the opening and closing operation of the cover member 500 when the quick coupler body 100 is rotated for the oil quick coupling of the first and fourth coupling blocks 410 and 440; ,

The cover opening and closing means 600 is a locking protrusion 610 formed on one side of the upper portion of the adapter body 300 so as to interfere with the connecting rod 520 of the cover member 500 when the quick coupler body 100 rotates, A first guide groove 615 formed on one side of the lower portion of the quick coupler body 100 and having an opening at the bottom so that the locking protrusion 610 passes when the quick coupler body rotates, and the hinge shaft 510, respectively. A restoration spring 630 that is wound and elastically supports the cover member 500 in a direction in which the cover member 500 is closed is provided.

In another embodiment of the present invention, the rotating housing 200 is omitted, and the quick coupler body 100 and the adapter body 300 are directly connected, but the first coupling block ( While 410) and the fourth coupling block 440 are coupled, the connecting rod 520 of the cover member 500 disposed on the first coupling block 410 interferes with the locking protrusion 610, the cover member 500 is opened, and the closing operation of the cover member 500 has the same opening and closing operation method in which it is closed by the restoration elastic force of the restoration spring 630 .

Therefore, in another embodiment of the present invention, in the process of performing hydraulic coupling connection between the quick coupler body 100 and the adapter body 300 in a state where the rotating housing 200 of the above-described embodiment is omitted, the cover member 500 ) to automatically open and close in connection with the forward and reverse rotational motions of the quick coupler body 100, thereby increasing user convenience and showing that it can be applied to other quick change equipment of construction machinery. will be.

As such, although specific embodiments have been described in the detailed description of the present invention, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention is not limited to the above-described embodiment, but should be defined by the claims and equivalents as well as the claims to be described later.

That is, the present invention described above is not limited to the specific preferred embodiments described above, and anyone with ordinary skill in the art to which the invention pertains without departing from the gist of the present invention as claimed in the claims Of course, various modifications can be made, and such modifications are within the scope of the claims.

100: quick coupler body 200: rotator housing
300: adapter body 405: connection hole
410,420,430,440: first, second, third, and fourth coupling blocks
500: cover member 510: hinge shaft
520: connecting rod 530: cover part
555: cushion member 600: cover opening and closing means
610: stumbling block 615,625: first and second information grooves
630: restoration spring 810,820: tilting cylinder

Claims (5)

A quick coupler body 100 connected to the excavator and provided with a first coupling block 410 at one lower portion thereof;
A second that is disposed on the lower side of the quick coupler body 100 and is coupled while surface contacting the first coupling block 410 when the quick coupler body 100 is rotated on one upper side to selectively connect the oil flow path a rotating housing 200 provided with a coupling block 420 and provided with a third coupling block 430 having a connection hole 405 in the lower portion of one side thereof;
A fourth coupling block disposed on the lower side of the rotating housing 200 and coupled to the third coupling block 430 when the rotating housing 200 is rotated on one upper side to selectively connect an oil flow path The adapter body 300 is provided with a 440 and the attachment is coupled to the lower portion;
a cover member 500 provided on the first and third coupling blocks 410 and 430, respectively, and having a cover portion 530 rotatably provided toward a lower surface or a side surface of the hinge shaft 510; and
The cover member ( A cover device for quick change vertical type oil quick coupling, characterized in that it comprises; The method according to claim 1,
The cover opening/closing means 600 is formed to protrude from an upper portion of one side of the rotating housing 200 and an upper portion of one side of the adapter body 300, and when the quick coupler body 100 and the rotating housing 200 are rotated, the The locking projections 610 each formed to interfere with the connecting rod 520 of the cover member 500, and
A first guide groove 615 formed on one side of the lower portion of the quick coupler body 100 and having an opening at the bottom so that the locking protrusion 610 formed on the rotating housing 200 passes when the quick coupler body rotates;
A second guide groove 625 formed on one side of the lower portion of the rotating housing 200 and having an opening at the bottom so that the locking protrusion 610 formed on the adapter body 300 passes when the rotating housing is rotated;
A quick change vertical type oil quick coupling, characterized in that it is wound around the hinge shaft 510 and provided with a restoring spring 630 for elastically supporting the cover member 500 in a direction in which the cover part 530 is closed. cover device. 3. The method according to claim 2,
The cover member 500 is a quick change vertical type oil quick coupling, characterized in that the cushion member 555 for reducing the contact noise is further provided on one side of the connecting rod 520 in contact with the locking protrusion 610 . cover device. The method according to claim 1,
The cover member 500 includes a cover portion 530 disposed to block external foreign substances by opening and closing the lower portions of the connection holes 405 of the first and third coupling blocks 410 and 430;
The cover part 530 is rotatably connected to the hinge shaft 510 as a center, and the first and second coupling blocks 410 and 420 are coupled and the third and third coupling blocks 430 and 440 are coupled to each other. A cover device for a quick change vertical type oil quick coupling, characterized in that it consists of a connecting rod 520 that interferes with the 610. A quick coupler body 100 connected to the excavator and provided with a first coupling block 410 at one lower portion thereof;
A fourth coupling block 440 disposed on the lower side of the quick coupler body 100 and coupled to the first coupling block 410 on one side to selectively connect an oil flow path is provided, and the attachment is coupled to the lower portion an adapter body 300 that becomes;
a cover member 500 provided on the first coupling block 410 and rotatably provided toward a lower surface or a side surface of the hinge shaft 510; and
Cover opening and closing means 600 for interlocking the opening and closing operation of the cover member 500 when the quick coupler body 100 is rotated for oil quick coupling of the first and fourth coupling blocks 410 and 440;
The cover opening and closing means 600 is a locking protrusion 610 formed on one side of the upper portion of the adapter body 300 so as to interfere with the connecting rod 520 of the cover member 500 when the quick coupler body 100 is rotated,
A first guide groove 615 formed on one side of the lower part of the quick coupler body 100 and having an opening at the bottom so that the locking protrusion 610 passes when the quick coupler body rotates;
A quick change vertical type oil quick coupling, characterized in that it is wound on the hinge shaft 510 and provided with a restoration spring 630 for elastically supporting the cover member 500 in the closing direction of the cover member 500 cover device.

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