KR102146968B1 - Multi-coupler connection device - Google Patents

Abstract

According to one embodiment of the present invention, a multi-coupler connection apparatus comprises: an upper block in which a plurality of male couplers connected to a plurality of hydraulic hoses are mounted, and to which a lever support member formed to protrude outwards and having a lever hanging unit formed on one end is coupled; a middle block including a male coupler penetrating hole through which the male couplers can be inserted and penetrate, and a lever support member penetrating hole through which the lever support member can be inserted and penetrate; and a lower block having a cam-shaped rotary lever member coupled to a lower side thereof, which has a guide groove guiding the lever hanging unit for elevating/lowering the upper block by the rotation by hanging the lever support member, having a lever member moving passage formed to rotate the lever member, having a plurality of hydraulic hoses connected to one side thereof to correspond to the male couplers, and having a female coupler mounted to make an inner circumferential surface of the male coupler penetrating hole come in full contact with an outer circumferential surface. The rotary lever member has a fixing hole formed to insert a fixing pin, and a moving groove formed in a rotary direction by being extended from the fixing hole to have a smaller diameter than that of the fixing hole. The fixing pin is supported by the spring and has a moving unit, which has an external diameter smaller than an internal diameter of the moving groove, and a fixing unit, which has an external diameter greater than an internal diameter of the moving groove and smaller than an internal diameter of the fixing hole. When the female coupler is connected to the male coupler by the normal rotation of the rotary lever member, the fixing unit is placed and fixed on the fixing hole. The multi-coupler connection apparatus is able to maintain its engagement despite an external vibration.

Description

Multi-coupler connection device

The present invention relates to a multi-coupler connection device, and more particularly, to a multi-coupler connection device capable of simultaneously connecting and disconnecting a male coupler and a female coupler to which a plurality of hydraulic hoses are connected.

In general, in fields such as agriculture, livestock, and fishing, various types of working machines are selectively connected to agricultural machines such as tractors and excavators according to the purpose of use.

Equipment such as a tractor or an excavator is connected by a plurality of hydraulic hoses and a coupling device to supply and discharge a large amount of fluid.

Patent Document 1 is an automatic link device for connecting a hydraulic hose of an excavator and a hydraulic hose of an attachment, comprising: a first connector including a hydraulic protrusion protruding to the outside by fluid pressure; And a step portion in which the first connector is inserted therein to communicate fluid flow with the first connector, and provides a space through which the hydraulic protrusion protrudes when the first connector is inserted therein. Disclosed is an automatic link device for hydraulic hoses including two connectors.

However, Patent Document 1 has a problem in that a plurality of first connectors and a plurality of second connectors must be connected and separated, respectively, in order to connect and separate a plurality of hydraulic hoses.

Accordingly, Patent Document 2 is a multi-coupler connecting device capable of simultaneously connecting and separating a plurality of female couplers to which a plurality of hydraulic hoses are connected and a plurality of male couplers to which a plurality of hydraulic hoses are connected, and a plurality of hydraulic hoses are connected Two female couplers are mounted on the inside, a rotating member is formed on both sides, and a fixing block having first and second moving holes respectively formed around the rotating member; and a first guide member inserted into the first moving hole and guided on both sides The first movable block is formed in, and has a plurality of locking holes on the other side of each female coupler, and a second guide member inserted into and guided by the second movable hole is formed on both sides, facing the female coupler. On one side, a second movable block is connected to a plurality of hydraulic hoses and equipped with a plurality of male couplers passing through the locking hole; and rotation holes are formed that are rotatably coupled to the rotating member on both sides of the fixing block, and around the rotation hole Each includes a handle member having first and second guide holes for guiding the first and second guide members to lift the first and second moving blocks, respectively, wherein the first and second moving blocks are respectively rotated forward/reversely of the handle member. Disclosed is a multi-coupler connecting device, characterized in that a plurality of female couplers and a plurality of male couplers are connected and separated at the same time by raising and lowering.

However, the multi-coupler device receives forces in various directions from the outside due to various vibrations generated in the machine and the influence of uneven ground. In this case, there is a problem in that the binding of the coupler is loose and fluid may leak to the outside.

Accordingly, there is a need to develop a multi-coupler capable of simultaneously connecting and disconnecting a plurality of female couplers and male couplers while maintaining their bonds even under external impacts.

The matters described as the above-described background art are only for enhancing understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the prior art already known to those of ordinary skill in the art.

Korean Patent Registration No. 10-1119181 (2012.03.20) Korean Patent Registration No. 10-1667983 (2016.10.31)

The present invention was conceived to solve this problem, and an object of the present invention is a multi-coupler capable of simultaneously connecting and disconnecting a male coupler and a female coupler connected to a plurality of hydraulic hoses, and maintaining the coupling even in external vibrations. It is to provide a connecting device.

In order to achieve the above object, in the multi-coupler connection device according to an embodiment of the present invention, a plurality of male couplers to which a plurality of hydraulic hoses are connected are mounted inside, protruded to the outside, and a lever engaging portion is formed at one end. An upper block to which the support member is coupled; An intermediate block having a male coupler through hole through which the male coupler can be inserted and a lever support member through hole through which the lever support member can be inserted; And a cam-type rotation lever member having a guide groove for guiding the lever engaging portion so as to raise and lower the upper block by rotation by hooking the lever support member, and moving the lever member through which the lever member can rotate. A passage is formed, a plurality of hydraulic hoses are connected to one side to correspond to the male coupler, and a lower block on which a female coupler is mounted so that an inner circumferential surface and an outer circumferential surface of the male coupler through hole are in close contact with each other, and the rotation lever member includes a fixing pin. A fixing hole is formed so as to be inserted and a moving groove is formed in the rotation direction by extending into the fixing hole having a diameter smaller than that of the fixing hole, and the fixing pin is supported by a spring, and an outer diameter and a moving part whose outer diameter is smaller than the inner diameter of the moving groove A fixing part that is larger than the inner diameter of the movable groove and smaller than the inner diameter of the fixing hole is formed, and when the female coupler and the male coupler are connected by forward rotation of the rotation lever member, the fixing part is positioned and fixed in the fixing hole. do.

The female coupler has a first opening/closing part formed inside the male coupler and the first opening/closing part that operates when disconnected from the male coupler, has a guide hole through which the inside and the outside communicate, and is in close contact with the male coupler through hole of the intermediate block, and is inserted into the guide hole. And a steel ball that can be moved in a radial direction, and the male coupler has a second opening/closing part that opens and closes when it is connected and separated from the female coupler, and a locking groove is formed outside the steel ball, and the A space in which the steel ball can move may be formed on the inner surface of the male coupler coupling hole of the intermediate block.

The inner diameter of the guide hole is smaller than the outer diameter of the steel ball, the outer diameter is larger than the outer diameter of the steel ball, and may increase as it goes from the inside to the outside.

In the rotation lever member, a portion to which the intermediate block is in close contact is in the form of a cam, so that the distance between the portion in close contact with the intermediate block and the rotation shaft decreases according to the forward rotation of the rotation lever member, and then increases again when the intermediate block is engaged. Can rise and fall.

In the present invention, a plurality of male couplers and female couplers can be connected and separated at the same time according to the rotation of the rotation lever member, and the spring is coupled by placing the female coupler on the lower block and using the intermediate block to lift and lower the intermediate block. It is possible to fix more firmly compared to the method of using and combining.

In particular, in the process of fixing the steel ball installed so as to be exposed to the inner surface of the female coupler by being caught in the locking groove of the male coupler, it is not fixed through a separate spring, but the intermediate block is raised and lowered using the shape of the rotary lever member as a cam. By combining it, there is no fear of damage to the spring, and durability can be improved.

In addition, by being fixed at the time of coupling by a fixing pin through a fixing hole formed in the rotation lever member and a moving groove, the coupling state can be maintained well even in vibration and external shock depending on the use environment.

1 is a perspective view of a multi-coupler connection device according to an embodiment of the present invention.
2 is an exploded perspective view of a multi-coupler connection device according to an embodiment of the present invention.
3 is a perspective view of an upper block according to an embodiment of the present invention.
4 is an exploded perspective view of an upper block according to an embodiment of the present invention.
5 is a perspective view of an intermediate block according to an embodiment of the present invention.
6 is an exploded perspective view of an intermediate block according to an embodiment of the present invention.
7 is a perspective view of a lower block according to an embodiment of the present invention.
8 is an exploded perspective view of a lower block according to an embodiment of the present invention.
9 is a cross-sectional view showing a state immediately before coupling of a multi-coupler connecting device according to an embodiment of the present invention.
10 is a partial cross-sectional view showing in detail a state immediately before coupling of a male coupler and a female coupler according to an embodiment of the present invention.
11 is a cross-sectional view showing a state in which a multi-coupler connecting device according to an embodiment of the present invention is coupled.
12 is a partial cross-sectional view showing in detail a state in which a male coupler and a female coupler are coupled according to an embodiment of the present invention.
13 is a cross-sectional view showing a coupled state of a multi-coupler connection device according to an embodiment of the present invention.
14 is a partial cross-sectional view showing in detail a state in which a male coupler and a female coupler are coupled according to an embodiment of the present invention.

The terminology used herein is for reference only to specific embodiments and is not intended to limit the invention. Singular forms as used herein also include plural forms unless the phrases clearly indicate the opposite. The meaning of "comprising" as used in the specification specifies a specific characteristic, region, integer, step, action, element and/or component, and other specific characteristic, region, integer, step, action, element, component and/or group It does not exclude the existence or addition of

Although not defined differently, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms defined in a commonly used dictionary are additionally interpreted as having a meaning consistent with the related technical literature and the presently disclosed content, and are not interpreted in an ideal or very formal meaning unless defined.

Hereinafter, a multi-coupler connecting device according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings. The multi-coupler connection device according to an embodiment of the present invention may be installed in agricultural machinery such as a tractor or an excavator in which various types of work machines are installed depending on the purpose of use. A plurality of hydraulic hoses are configured to be connected to the male coupler and the female coupler, and can be connected and disconnected at the same time.

1 is a perspective view of a multi-coupler connection device according to an embodiment of the present invention. 2 is an exploded perspective view of a multi-coupler connection device according to an embodiment of the present invention. 1 and 2, a multi-coupler connection device according to an embodiment of the present invention includes a plurality of male couplers 110 including an upper block 100, an intermediate block 200, and a plurality of hydraulic hoses to be connected. It includes a lower block 300 on which a plurality of female couplers 320 are mounted so that a plurality of hydraulic hoses can be connected.

It has three basic configurations, and before the male coupler 110 and the female coupler 320 are combined, the intermediate block 200 and the lower block 300 are maintained in a combined state, and the upper block 100 is separated separately. It is used in the state. When the male coupler 110 and the female coupler 320 are coupled, the upper block 100 is placed on the upper side of the assembly of the intermediate block 200 and the lower block 300 and is used in a coupled state. The configurations of the upper block 100, the middle block 200, and the lower block 300 will be described in more detail with reference to FIGS. 3 to 9.

3 is a perspective view of an upper block according to an embodiment of the present invention. 4 is an exploded perspective view of an upper block according to an embodiment of the present invention. 3 and 4, a plurality of male couplers 110 are mounted inside the upper block 100 so that a plurality of hydraulic hoses can be connected. In addition, the lever support member 120 may be coupled to the center. Both the male coupler 110 and the lever support member 120 may be formed to pass through the flat body portion 130. In this case, two or more male couplers 110 may be mounted in plural, and one or two lever support members 120 may be combined. The body 130 may be formed by combining the upper plate 131 and the lower plate 132 in a flat plate shape through a screw 133. The male coupler 110 has a nipple structure at one end so that a plurality of hydraulic hoses can be coupled, and the other end can be coupled with the first part 111 and the first part 111 in which a bolt-shaped thread is formed. It is formed in a nut shape and the other end may be formed by combining a second part 112 that can be coupled with the female coupler 320. At this time, it is coupled through the body portion 130, the upper plate 131 has a through hole formed in a circular shape, the first part 111 can be inserted, and the lower plate 132 has a through hole formed in a hexagonal shape. The second part 112 may be installed to be fixed and configured to facilitate coupling. The lever support member 120 has a long rod-shaped body 122 and one end of which is inserted into a hole formed in the upper plate 131 with a small outer diameter, and a screw line is formed so that the cap 121 is coupled thereto. One end of the body 122 is formed with an elongated groove and a lever engaging portion 123 is formed. The lever engaging portion 123 corresponds to a configuration in which the upper block 100 can be in close contact with the lower block 300 when the rotation lever member 340 is rotated by being caught by the rotation lever member 340 to be described later. The lever engaging portion 123 may be formed in various shapes, and may be provided in various shapes as long as the rotational movement of the rotational lever member 340 is changed to a linear movement when rotating the rotational lever member 340. The upper block 100 is used in a combined form and serves as a male coupler of a conventional coupling device by connecting a plurality of hydraulic lakes.

5 is a perspective view of an intermediate block according to an embodiment of the present invention. 6 is an exploded perspective view of an intermediate block according to an embodiment of the present invention. 5 and 6, the intermediate block 200 is basically a male coupler through hole 210 and a lever support member through hole in a plate-shaped body so that the male coupler 110 and the lever support member 120 pass through. 220) is formed. In addition, the cover connection portion 230 may be formed on the side. The cover connection part may be connected to a cover (not shown) to prevent foreign substances from flowing into the female coupler when the multi-coupler connection device is not used. The male coupler through hole 210 may be implemented in a cylindrical shape, and may be formed by combining the upper part 211 and the lower part 212 with a through hole formed in the body. Each part may be implemented in the form of a bolt and a nut and combined. The lever support member through hole 220 may be coupled to the body. The lever support member through hole 220 may be formed so that the lower portion is not exposed to the body. The intermediate block 200 not only serves to guide the male coupler 110 and the lever support member 120, but also provides a structure that can be fixed when the male coupler 110 and the female coupler 320 are combined. Play a role. A structure capable of accommodating a steel ball 401 fixing the male coupler 110 is provided. This structure will be described later together with the lower block structure.

7 is a perspective view of a lower block according to an embodiment of the present invention. 8 is an exploded perspective view of a lower block according to an embodiment of the present invention. The lower block 300 basically includes a plate-shaped body 310, a female coupler 320 to which a plurality of hydraulic hoses are connected, and a rotation lever member 340. The lower block 300 has a combined form of a female coupler 320 to which a plurality of hydraulic hoses are connected. The female coupler 320 is installed by being inserted into a through hole formed in the body 310. A plurality of hydraulic hoses may be connected to the lower portion of the female coupler 320. A cam-type rotation lever member 340 capable of lifting the upper block 100 by rotation by hooking the lever support member 120 to the lower portion of the body 310 is coupled to the lower portion. The cam-type rotation lever member 340 has a body 341 having one end formed in the form of a cam-shaped disk and the other end formed of a lever. It means that the distance of the outer circumferential surface from the cam-shaped disk-shaped rotation shaft 343 is changed, and when the distance of the outer circumferential surface from the rotation shaft 343 gradually increases and decreases from the state before mating to the mating state, the initial It means decreasing to the same distance as. When the rotation lever member 340 is formed in such a form, when the rotation lever member 340 is rotated forward, the intermediate block 200 gradually rises and then descends again. By this operation, a space in which the steel ball 401 capable of fixing the male coupling 110 and the female coupling 320 to be described later can move can be provided.

In the disk portion, the rotation shaft 343 is coupled to the center and the guide groove 350 is formed so that the lever engaging portion 123 is guided in the circumferential direction with the rotation shaft 343 as the center. The guide groove 350 is connected to the rotation shaft 343 at the initial point so that the upper block 100 can be in close contact with the lower block 300 when the lever engaging portion 123 is engaged and the rotation lever member 340 rotates. It is formed so that the distance gets closer. That is, the distance from the rotation shaft 343 to the other end at one end is gradually reduced. Therefore, when the rotation lever member 340 is rotated about the rotation shaft 343, the distance between the lever engaging portion 123 and the rotation shaft 343 becomes closer and accordingly, the upper block 100 becomes the lower block 300. Will come in close contact with.

In addition, the rotation lever member 340 has a fixing hole 360 formed so that the fixing pin 345 is inserted, and a diameter smaller than the fixing hole 360 extends to the fixing hole 360 to move the groove 370 in the rotation direction. ) Is formed. The fixing pin 345 is supported by the spring 344 and the outer diameter of the moving part 346 and the outer diameter is smaller than the inner diameter of the moving groove 370 and the outer diameter is larger than the inner diameter of the moving groove 370 and the inner diameter of the fixing hole 360. A small fixing part 347 is formed so that when the female coupler 320 and the male coupler 110 are coupled by a forward rotation of the rotation lever member 340, the fixing part 347 is positioned in the fixing hole 360 and can be fixed. have. The rotation lever member 340 has the advantage of being able to maintain a more firmly coupled state by coupling the fixing pin 345 to itself. In this case, when the rotation lever member 340 is rotated to the coupling position, the fixing pin 345 is automatically moved to the fixed position, and the coupling of the female coupler 320 and the male coupler 110 is prevented even with external vibration or shock. Can be kept strong. The rotation lever member 340 may be formed in two, and each end may be connected via a handle 342.

10 is a cross-sectional view showing a state immediately before coupling of a multi-coupler connecting device according to an embodiment of the present invention. A detailed configuration of the female coupler and the male coupler of the present invention will be described with reference to FIG. 10. The female coupler 320 has a first opening and closing part 321 that opens and closes by the support spring 322 when disconnected from the male coupler 110, and a guide hole 325 communicating with the inside and outside is formed. It is in close contact with the male coupler through hole 210 of the intermediate block 200, and includes a steel ball 401 that is inserted into the guide hole 325 to move in the radial direction. An inner space 323 through which a fluid can pass is formed inside the female coupler 320, and the first opening/closing part 321 is coupled to the inner sidewall by the support spring 322. Therefore, in normal times, the first opening portion 321 is subjected to a force upward by the restoring force of the support spring 322 and the inner space 323 is blocked from the outside. The female coupler 320 is formed so that the guide hole 325 penetrates inside and outside, and provides a space for inserting the steel ball 401 capable of fixing the male coupler 110, but the steel ball 401 The diameter of the guide hole 325 is smaller than the diameter of the steel ball 401 on the inner peripheral surface of the female coupler 320 and larger than the diameter of the steel ball 401 on the outer peripheral surface of the female coupler 320 so as to be partially exposed to the inside. . Accordingly, when the male coupler 110 is inserted into the female coupler 320, the steel ball 401 corresponds to a configuration in which the steel ball 401 can be pushed to the outside. In addition, the male coupler through hole 210 is coupled to the outer circumferential surface of the female coupler 320 so that the steel ball 401 can be pushed. Basically, the inner diameter of the male coupler through hole 210 is the same as the outer diameter of the female coupler 320 so that the inner peripheral surface is in close contact with the female coupler 320. When the intermediate block 200 is raised during the forward rotation of the rotation lever member 340, a predetermined space 211 may be formed so that the steel ball 401 can be pushed. This space 211 may be provided by gradually increasing the inner diameter of the male coupler through hole 210.

On the other hand, the male coupler 110 has a second opening and closing part 142 that opens and closes when connected and disconnected from the female coupler 320 is formed inside, and a locking groove 144 in which the steel ball 401 can be caught on the outer circumferential surface Is formed. The second opening and closing part 142 is installed to face the first opening and closing part 321 and is supported by the support spring 143 like the first opening and closing part 321. Basically, an inner space 141 through which fluid can pass is formed inside the male coupler 110, and the second opening/closing part 142 is coupled to the inner sidewall by the support spring 143 so as to be supported. Therefore, in normal times, the second opening and closing portion 142 receives a force downward by the restoring force of the support spring 143 and the inner space 141 is blocked from the outside. The locking groove 144 formed on the outer circumferential surface provides a space for the steel ball 401 to be caught when the male coupler 110 is inserted into the female coupler 320.

Hereinafter, the operation and effect of the multi-coupler connection device according to an embodiment of the present invention configured as described above will be described. Immediately before and during the bonding, and the state in which the bonding is completed will be described step by step.

9 is a cross-sectional view showing a state immediately before coupling of a multi-coupler connecting device according to an embodiment of the present invention. 10 is a partial cross-sectional view showing in detail a state immediately before coupling of a male coupler and a female coupler according to an embodiment of the present invention. The operation process immediately before the coupling will be described with reference to FIGS. 9 and 10. Basically, the multi-coupler connection device according to an embodiment of the present invention operates in a state in which the middle block 200 and the lower block 300 are connected. It is operated in a state in which a plurality of hydraulic hoses are connected to the female coupler 320 of the lower block 300. When the male coupler is inserted into the female coupler and brought into close contact, the end of the guide groove 350 of the rotation lever member 340 is positioned so that the lever engaging portion 123 of the lever support member is caught. At this time, the first opening/closing part 321 and the second opening/closing part 142 of the female coupler and the male coupler are not in contact with each other, and each of the female coupler and the male coupler corresponds to a state in which the fluid is blocked from passing through. At this time, the fixing pin 345 is in a state in which the moving part 346 is hung in the moving groove 370 and the spring 344 is in a compressed state. In addition, since the outer circumferential surface of the disk portion of the rotation lever member 340 maintains the closest distance from the rotation center, the intermediate block 200 is in close contact with the lower block 300.

11 is a cross-sectional view illustrating a state in which a multi-coupler connecting device according to an embodiment of the present invention is coupled. FIG. 12 is a partial cross-sectional view illustrating a state in which a male coupler and a female coupler are coupled according to an embodiment of the present invention. . Referring to Figs. 11 and 12, the operation process during coupling will be described. When the rotation lever member 340 is rotated forward while the male coupler is inserted into the female coupler, the rotation lever member moves along the guide groove 350 of the rotation lever member. As the distance between the guide groove 350 and the rotation shaft 343 is shortened, the upper block 100 comes into close contact. At this time, the intermediate block 200 is in close contact with the disk portion of the rotation lever member 340 and is formed in a cam shape, so that the distance from the rotation center to the outer circumferential surface gradually increases and rises. At this time, the steel ball 401 is pushed into the space 211 formed in the male coupler through hole 210. Therefore, even when the male coupler is inserted, it can be coupled without interference from the steel ball. At this time, the first opening and closing portions 322 and the second opening and closing portions 144 come into contact with each other, and as the support springs 143 and 322 are compressed, the inner spaces 141 and 323 begin to communicate with the outside. That is, the male coupling and the female coupling are combined and the space is communicated to allow fluid to flow.

13 is a cross-sectional view showing a coupled state of a multi-coupler connection device according to an embodiment of the present invention. 14 is a partial cross-sectional view showing in detail a state in which a male coupler and a female coupler are coupled according to an embodiment of the present invention. An operation process in a state in which the coupling is completed will be described with reference to FIGS. 13 and 14. When the rotation lever member 340 is rotated forward and the lever engaging portion 123 proceeds to the end of the guide groove 350 and is positioned, the coupling is completed. As the distance between the outer circumferential surface of the disk portion of the rotation lever member 340 and the rotation shaft 343 decreases again, the intermediate block 200 descends. At this time, since the steel ball is completely tightly fixed to the locking groove, the male coupler and the female coupler are more firmly maintained in a coupled state. On the other hand, at this time, the fixing pin 345 moves from the moving groove 370 to the fixing groove 360 and is finally located in the fixing groove 360. At this time, by the restoring force of the compressed spring 344, the fixing part 347, not the moving part 346 of the fixing pin 345, is located in the fixing groove 360. Therefore, the moving part 346 of the fixing pin 345 cannot be located in the fixing groove 360 until the fixing pin 345 is separately compressed using an external force, so that the rotation lever member 340 is prevented from rotating. .

The separation and operation relationship between the male coupler and the female coupler proceeds in the reverse order of the coupling process. At this time, in order to start the separation, the fixing pin 345 is pushed to compress the spring 344 so that the moving part 346 of the fixing pin 345 is located in the fixing groove 360, and then the rotation lever member 340 It is possible to separate it by rotating it in reverse.

In this way, according to the rotation of the rotation lever member 340, a plurality of male couplers 110 and female couplers 320 can be connected and separated at the same time, and the female coupler 320 is positioned in the lower block 300 and the intermediate block It is possible to fix more firmly than the method of coupling using a spring by coupling using the lifting of the intermediate block 200 using 200.

In particular, in the process of fixing the steel ball 401 installed to be exposed to the inner surface of the female coupler 320 by being caught in the locking groove 144 of the male coupler 110, the rotating lever member is not fixed through a separate spring. The durability of the spring can be improved because there is no fear of damage to the spring by raising and lowering the intermediate block in the form of a cam 340.

In addition, by being fixed at the time of coupling by the fixing pin 345 through the fixing hole 360 formed in the rotating lever member 340 and the moving groove 370, the coupling state is maintained well even in vibration and external shock depending on the usage environment. Can be.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but those of ordinary skill in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features. You can understand.

Therefore, it should be understood that the embodiments described above are illustrative and non-limiting in all respects. The scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or altered forms derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. .

100: upper block 110: male coupler
120: lever support member 130: body portion
200: middle block 210: male coupler through hole
220: lever support member through hole
230: cover connection
300: lower block 310: body
320: female coupler 330: lever support member receiving port
340: rotation lever member

Claims (4)

An upper block to which a plurality of male couplers to which a plurality of hydraulic hoses are connected is mounted on the inside, protruded to the outside, and to which a lever support member having a lever engaging portion formed at one end is coupled;
An intermediate block having a male coupler through hole through which the male coupler can be inserted and a lever support member through hole through which the lever support member can be inserted;
A cam-type rotary lever member having a guide groove for guiding the lever engaging portion is coupled to the lower portion so that the upper block can be raised and lowered by rotation by hooking the lever support member, and moving the lever member through which the rotary lever member can rotate. A passage is formed, a plurality of hydraulic hoses are connected to one side to correspond to the male coupler, and a lower block on which a female coupler is mounted so that the inner and outer circumferential surfaces of the male coupler through-hole are in close contact,
The rotation lever member has a fixing hole formed so that the fixing pin is inserted, and a diameter smaller than the fixing hole is extended to the fixing hole to form a movable groove in the rotation direction, and the fixing pin is supported by a spring, and the outside diameter is the movable groove. A moving part and an outer diameter smaller than the inner diameter of the moving groove is larger than the inner diameter of the moving groove and a fixed part smaller than the inner diameter of the fixing hole is formed, so that when the female coupler and the male coupler are connected by forward rotation of the rotation lever member, the fixing part is the fixing hole. Located in and fixed,
In the rotation lever member, a portion to which the intermediate block is in close contact is in the form of a cam, so that the distance between the portion that is in close contact with the intermediate block and the rotation shaft decreases according to the forward rotation of the rotation lever member, and then increases again at the time of engagement. A multi-coupler connecting device, characterized in that the rise and fall.
The method according to claim 1,
The female coupler has a first opening/closing part formed inside the male coupler and the first opening/closing part which operates when disconnected from the male coupler, has a guide hole through which the inside and the outside communicate, and is in close contact with the male coupler through hole of the intermediate block, and the guide hole Includes a steel ball that can be inserted and moved in a radial direction
The male coupler has a second opening/closing part that opens and closes when connected to and disconnected from the female coupler, and a locking groove that is caught in the steel ball is formed on the outside,
A multi-coupler connecting device, characterized in that a space in which the steel ball can move is formed on an inner surface of the male coupler through hole of the intermediate block. The method according to claim 2,
The guide hole has an inner diameter smaller than an outer diameter of the steel ball, an outer diameter greater than an outer diameter of the steel ball, and increases as it goes from the inside to the outside. delete

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